/* roulang page: index */
:root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255,255,255,.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0,0,0,.3);
            --shadow-md: 0 12px 30px rgba(0,0,0,.45);
            --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(255,61,61,.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(0,229,255,.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(255,61,61,.03) 0%, transparent 60%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: #55f0ff;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        p {
            color: var(--text-secondary);
            max-width: 680px;
        }

        p + p {
            margin-top: 1.25rem;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-body);
            color: var(--text-primary);
            font-weight: 700;
            letter-spacing: .01em;
            line-height: 1.4;
            margin-bottom: 1rem;
        }

        h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
        }

        h2 {
            font-size: 28px;
            line-height: 1.4;
            margin-top: 0;
        }

        h3 {
            font-size: 20px;
            line-height: 1.5;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        .section-pad {
            padding: 5rem 0;
        }

        .section-pad-sm {
            padding: 3.5rem 0;
        }

        .text-glow {
            text-shadow: 0 0 24px rgba(0,229,255,.35), 0 0 60px rgba(0,229,255,.12);
        }

        .text-glow-red {
            text-shadow: 0 0 24px rgba(255,61,61,.35), 0 0 60px rgba(255,61,61,.12);
        }

        .accent-text {
            color: var(--accent-primary);
        }

        .accent-text-2 {
            color: var(--accent-secondary);
        }

        .display-num {
            font-family: var(--font-display);
            font-weight: 700;
            letter-spacing: .03em;
        }

        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            padding: 5px 14px;
            border: 1px solid rgba(0,229,255,.35);
            border-radius: 20px;
            margin-bottom: 1rem;
            background: rgba(0,229,255,.05);
        }

        .section-label-red {
            color: var(--accent-primary);
            border-color: rgba(255,61,61,.35);
            background: rgba(255,61,61,.05);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11,14,20,.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }

        .navbar {
            padding: 0 0;
            min-height: var(--header-height);
        }

        .navbar .container {
            min-height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-body);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: .02em;
            padding: 0;
            margin: 0;
            transition: var(--transition);
        }

        .navbar-brand:hover {
            color: var(--accent-secondary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0;
            box-shadow: 0 4px 16px rgba(255,61,61,.3);
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 2px;
            margin-left: 1.5rem;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            letter-spacing: .02em;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.05);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.08);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 1px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-secondary);
            border-radius: 1px;
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            background: rgba(255,255,255,.04);
            color: var(--text-primary);
            width: 42px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .navbar-toggler:hover {
            border-color: rgba(0,229,255,.4);
            background: rgba(0,229,255,.06);
        }

        .navbar-toggler:focus {
            outline: none;
            box-shadow: 0 0 0 2px rgba(0,229,255,.3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(244,246,251,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Offcanvas */
        .offcanvas {
            background: var(--bg-surface);
            border-right: 1px solid var(--line);
        }

        .offcanvas-header {
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.25rem;
        }

        .offcanvas-title {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
        }

        .offcanvas-body {
            padding: 1rem 1.25rem;
        }

        .offcanvas .nav-link {
            display: block;
            padding: 10px 14px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-bottom: 1px solid rgba(255,255,255,.04);
        }

        .offcanvas .nav-link:hover {
            background: rgba(255,255,255,.05);
            color: var(--text-primary);
        }

        .offcanvas .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.08);
        }

        .btn-close-custom {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 22px;
            cursor: pointer;
            transition: var(--transition);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
        }

        .btn-close-custom:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.08);
        }

        /* ============ STEP PROGRESS ============ */
        .step-progress {
            background: rgba(11,14,20,.96);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 6px 0;
            min-height: var(--step-height);
            display: flex;
            align-items: center;
        }

        .step-progress .container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .step-progress .container::-webkit-scrollbar {
            display: none;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255,255,255,.03);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .step-item:hover {
            color: var(--text-primary);
            border-color: rgba(255,255,255,.1);
            background: rgba(255,255,255,.06);
        }

        .step-item.active {
            color: var(--accent-secondary);
            border-color: rgba(0,229,255,.3);
            background: rgba(0,229,255,.08);
        }

        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(255,255,255,.08);
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 12px;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .step-item.active .step-num {
            background: var(--accent-secondary);
            color: #0B0E14;
        }

        .step-item .step-text {
            font-size: 13px;
            letter-spacing: .02em;
        }

        .step-separator {
            width: 14px;
            height: 1px;
            background: rgba(255,255,255,.12);
            flex-shrink: 0;
        }

        /* ============ MAIN ============ */
        main {
            display: block;
        }

        /* ============ HERO (Before/After) ============ */
        .hero-section {
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
            padding: 4rem 0 4.5rem;
            background:
                radial-gradient(ellipse at 15% 30%, rgba(255,61,61,.08) 0%, transparent 50%),
                radial-gradient(ellipse at 85% 20%, rgba(0,229,255,.07) 0%, transparent 50%),
                var(--bg-primary);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                repeating-linear-gradient(90deg, rgba(255,255,255,.015) 0, rgba(255,255,255,.015) 1px, transparent 1px, transparent 48px);
            pointer-events: none;
        }

        .hero-bg-texture {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: .35;
            background-image: url('/assets/images/4288eef0a1521298.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            filter: saturate(.5) brightness(.35);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            color: var(--accent-secondary);
            text-transform: uppercase;
            padding: 6px 16px;
            border: 1px solid rgba(0,229,255,.3);
            border-radius: 20px;
            background: rgba(0,229,255,.06);
            margin-bottom: 1.25rem;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--success);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: 42px;
            line-height: 1.28;
            font-weight: 800;
            letter-spacing: .01em;
            color: var(--text-primary);
            margin-bottom: 1rem;
            text-shadow: 0 2px 40px rgba(0,0,0,.6);
        }

        .hero-title .highlight-red {
            color: var(--accent-primary);
        }

        .hero-subtitle {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 1.25rem;
        }

        .hero-desc {
            font-size: 15.5px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 2rem;
        }

        .btn {
            font-family: var(--font-body);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: .02em;
            border-radius: var(--radius-sm);
            padding: 11px 26px;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }

        .btn-primary-custom {
            background: var(--accent-primary);
            color: #0B0E14;
            font-weight: 700;
            box-shadow: 0 6px 24px rgba(255,61,61,.3);
        }

        .btn-primary-custom:hover {
            background: #ff5a5a;
            color: #0B0E14;
            border: 1px solid rgba(0,229,255,.5);
            box-shadow: 0 8px 32px rgba(255,61,61,.45);
            transform: translateY(-1px);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--accent-secondary);
            border: 1px solid rgba(0,229,255,.45);
        }

        .btn-outline-custom:hover {
            background: rgba(0,229,255,.08);
            color: #55f0ff;
            border-color: rgba(0,229,255,.7);
            transform: translateY(-1px);
        }

        .btn-lg-custom {
            padding: 14px 34px;
            font-size: 16px;
            border-radius: 10px;
        }

        .hero-data-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 32px;
            align-items: baseline;
        }

        .hero-data-item {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }

        .hero-data-num {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: .02em;
        }

        .hero-data-label {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: .04em;
        }

        /* Before/After Compare */
        .ba-compare {
            position: relative;
            background: rgba(17,23,32,.85);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0;
        }

        .ba-header {
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--line);
            background: rgba(0,0,0,.25);
            flex-wrap: wrap;
            gap: 8px;
        }

        .ba-header-title {
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .1em;
            text-transform: uppercase;
            color: var(--text-secondary);
        }

        .ba-vs {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255,255,255,.06);
            border: 1px solid var(--line);
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 15px;
            color: var(--text-primary);
            letter-spacing: .02em;
            flex-shrink: 0;
        }

        .ba-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .ba-panel {
            padding: 1.5rem 1.5rem 1.75rem;
            transition: var(--transition);
        }

        .ba-panel-before {
            background: rgba(255,61,61,.04);
            border-right: 1px solid var(--line);
        }

        .ba-panel-after {
            background: rgba(0,229,255,.04);
        }

        .ba-panel-title {
            font-size: 15px;
            font-weight: 700;
            letter-spacing: .06em;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ba-panel-before .ba-panel-title {
            color: var(--accent-primary);
        }

        .ba-panel-after .ba-panel-title {
            color: var(--accent-secondary);
        }

        .ba-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .ba-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 7px 0;
            border-bottom: 1px solid rgba(255,255,255,.04);
            line-height: 1.65;
        }

        .ba-list li:last-child {
            border-bottom: none;
        }

        .ba-list .ba-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            margin-top: 4px;
        }

        .ba-panel-before .ba-icon {
            background: rgba(255,61,61,.15);
            color: var(--accent-primary);
        }

        .ba-panel-after .ba-icon {
            background: rgba(0,229,255,.15);
            color: var(--accent-secondary);
        }

        /* ============ GENERIC SECTION ============ */
        .section-title-wrap {
            margin-bottom: 2.5rem;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.4;
            margin-bottom: .75rem;
        }

        .section-subtitle {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        .section-alt-bg {
            background: var(--bg-surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-dark-bg {
            background: rgba(11,14,20,.7);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        /* ============ PAIN SECTION ============ */
        .pain-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: pain-counter;
        }

        .pain-list-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--line);
            align-items: flex-start;
            counter-increment: pain-counter;
            transition: var(--transition);
        }

        .pain-list-item:last-child {
            border-bottom: none;
        }

        .pain-num {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            color: rgba(255,255,255,.15);
            min-width: 44px;
            letter-spacing: .02em;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .pain-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: .4rem;
        }

        .pain-content p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.75;
            max-width: 540px;
        }

        /* ============ CASE / TESTIMONIAL CARDS ============ */
        .testimonial-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            font-family: Georgia, serif;
            font-size: 56px;
            line-height: 1;
            color: rgba(255,255,255,.08);
            position: absolute;
            top: 12px;
            right: 20px;
            font-weight: 700;
            pointer-events: none;
        }

        .testimonial-card:hover {
            border-color: rgba(0,229,255,.35);
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(0,0,0,.55);
        }

        .testimonial-text {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--line);
            padding-top: 1rem;
        }

        .testimonial-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255,61,61,.25), rgba(0,229,255,.25));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 16px;
            color: var(--text-primary);
            border: 1px solid var(--line);
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: .04em;
        }

        /* ============ RESULTS DATA ============ */
        .data-panel {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 2rem 2rem;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .data-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,255,.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .data-item {
            text-align: center;
            padding: .5rem .75rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .data-item:hover {
            background: rgba(255,255,255,.03);
        }

        .data-number {
            font-family: var(--font-display);
            font-size: 38px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--text-primary);
            line-height: 1.2;
            text-shadow: 0 0 30px rgba(0,229,255,.25);
        }

        .data-number.red {
            text-shadow: 0 0 30px rgba(255,61,61,.3);
        }

        .data-label {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: .06em;
            margin-top: .3rem;
            font-weight: 500;
        }

        /* ============ COMPARISON ============ */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 1.25rem;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .comparison-card.before {
            border-left: 3px solid var(--accent-primary);
        }

        .comparison-card.after {
            border-left: 3px solid var(--accent-secondary);
        }

        .comparison-card:hover {
            border-color: rgba(255,255,255,.18);
            transform: translateY(-2px);
        }

        .comparison-card.before:hover {
            border-color: rgba(255,61,61,.45);
        }

        .comparison-card.after:hover {
            border-color: rgba(0,229,255,.45);
        }

        .comparison-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .12em;
            text-transform: uppercase;
            padding: 3px 12px;
            border-radius: 14px;
            margin-bottom: 1rem;
        }

        .comparison-card.before .comparison-label {
            background: rgba(255,61,61,.12);
            color: var(--accent-primary);
            border: 1px solid rgba(255,61,61,.3);
        }

        .comparison-card.after .comparison-label {
            background: rgba(0,229,255,.12);
            color: var(--accent-secondary);
            border: 1px solid rgba(0,229,255,.3);
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,.05);
            line-height: 1.65;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            margin-top: 3px;
            font-weight: 700;
        }

        .comparison-card.before .comparison-icon {
            background: rgba(255,61,61,.12);
            color: var(--accent-primary);
        }

        .comparison-card.after .comparison-icon {
            background: rgba(0,229,255,.12);
            color: var(--accent-secondary);
        }

        .comparison-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 22px;
            font-weight: 700;
            font-family: var(--font-display);
            flex-shrink: 0;
            padding: 0 4px;
        }

        /* ============ SOLUTION ============ */
        .solution-grid {
            display: grid;
            grid-template-columns: 1.7fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        .solution-main {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-md);
        }

        .solution-main p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            max-width: 100%;
        }

        .solution-main p:last-child {
            margin-bottom: 0;
        }

        .solution-aside {
            background: var(--bg-surface-2);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-md);
        }

        .solution-aside h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .solution-aside-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .solution-aside-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,.05);
        }

        .solution-aside-list li:last-child {
            border-bottom: none;
        }

        .solution-aside-list .check-icon {
            color: var(--success);
            font-size: 13px;
            flex-shrink: 0;
        }

        /* ============ STEPS TIMELINE ============ */
        .steps-timeline {
            position: relative;
            padding-left: 0;
        }

        .steps-line {
            position: relative;
        }

        .steps-line::before {
            content: '';
            position: absolute;
            top: 12px;
            left: 24px;
            width: 2px;
            bottom: 12px;
            background: rgba(255,255,255,.1);
            z-index: 0;
        }

        .step-card {
            position: relative;
            display: flex;
            gap: 1.5rem;
            padding: 1.25rem 0;
            z-index: 1;
        }

        .step-marker {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 2px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            margin-top: 4px;
        }

        .step-card:nth-child(1) .step-marker {
            border-color: rgba(255,61,61,.5);
            color: var(--accent-primary);
        }

        .step-card:nth-child(2) .step-marker {
            border-color: rgba(255,176,32,.5);
            color: var(--warning);
        }

        .step-card:nth-child(3) .step-marker {
            border-color: rgba(0,229,255,.5);
            color: var(--accent-secondary);
        }

        .step-card:nth-child(4) .step-marker {
            border-color: rgba(46,213,115,.5);
            color: var(--success);
        }

        .step-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: .4rem;
        }

        .step-info p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro-wrap {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            box-shadow: var(--shadow-md);
        }

        .brand-intro-text {
            font-size: 15px;
            line-height: 2;
            color: var(--text-secondary);
            max-width: 100%;
        }

        /* ============ AUDIENCE TAGS ============ */
        .audience-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 12px;
        }

        .audience-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 30px;
            background: var(--bg-surface);
            border: 1px solid var(--line);
            color: var(--text-secondary);
            font-size: 13.5px;
            font-weight: 500;
            transition: var(--transition);
            cursor: default;
        }

        .audience-tag:hover {
            border-color: rgba(0,229,255,.35);
            color: var(--text-primary);
            background: rgba(0,229,255,.05);
            transform: translateY(-2px);
        }

        .audience-tag .tag-icon {
            font-size: 14px;
            color: var(--accent-secondary);
        }

        .audience-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 300px;
            line-height: 1.65;
            margin-top: .35rem;
            display: block;
        }

        .audience-tag .audience-desc {
            color: var(--text-secondary);
            font-weight: 400;
        }

        /* ============ NEWS CARDS ============ */
        .news-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: rgba(0,229,255,.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .news-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-surface-2);
            position: relative;
        }

        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.05);
        }

        .news-img .news-date-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11,14,20,.85);
            backdrop-filter: blur(8px);
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--line);
        }

        .news-body {
            padding: 1.25rem 1.25rem 1.5rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: .5rem;
            line-height: 1.5;
        }

        .news-summary {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 1rem;
        }

        .news-meta {
            font-size: 12px;
            color: rgba(255,255,255,.4);
            letter-spacing: .04em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* ============ METRICS PROGRESS ============ */
        .metrics-list {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .metric-item {
            display: grid;
            grid-template-columns: 130px 1fr 70px;
            gap: 1rem;
            align-items: center;
        }

        .metric-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            letter-spacing: .03em;
        }

        .metric-bar {
            height: 10px;
            background: rgba(255,255,255,.06);
            border-radius: 5px;
            overflow: hidden;
        }

        .metric-bar .progress-fill {
            height: 100%;
            border-radius: 5px;
            background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            transition: width 1.2s ease-out;
            position: relative;
        }

        .metric-bar .progress-fill::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 8px;
            background: rgba(255,255,255,.6);
            border-radius: 4px;
        }

        .metric-value {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            text-align: right;
            letter-spacing: .02em;
        }

        /* ============ FAQ / OBJECTION ============ */
        .faq-accordion .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            border-left: 3px solid var(--accent-primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 1rem 1.25rem;
            border: none;
            box-shadow: none;
            letter-spacing: .01em;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255,61,61,.05);
            color: var(--text-primary);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border: none;
            outline: 2px solid rgba(0,229,255,.3);
            outline-offset: -2px;
        }

        .faq-accordion .accordion-button::after {
            content: '+';
            background-image: none;
            font-size: 22px;
            font-weight: 400;
            color: var(--text-secondary);
            transition: transform .35s ease;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--accent-primary);
        }

        .faq-accordion .accordion-body {
            padding: 1rem 1.25rem 1.25rem;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
            border-top: 1px solid var(--line);
            background: rgba(0,0,0,.15);
        }

        /* ============ TOPICS / CATEGORY ENTRY ============ */
        .topic-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 14px;
        }

        .topic-entry-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.15rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
            height: 100%;
        }

        .topic-entry-card:hover {
            border-color: rgba(0,229,255,.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            color: var(--text-primary);
        }

        .topic-entry-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(0,229,255,.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--accent-secondary);
            border: 1px solid rgba(0,229,255,.15);
            transition: var(--transition);
        }

        .topic-entry-card:hover .topic-entry-icon {
            background: rgba(0,229,255,.15);
            border-color: rgba(0,229,255,.35);
        }

        .topic-entry-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .topic-entry-desc {
            font-size: 12.5px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
        }

        /* ============ FINAL CTA ============ */
        .final-cta {
            background: linear-gradient(135deg, rgba(255,61,61,.15) 0%, rgba(11,14,20,.95) 40%, rgba(0,229,255,.1) 100%);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .final-cta::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,61,61,.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .final-cta::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,255,.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .final-cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .final-cta h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: .75rem;
        }

        .final-cta p {
            font-size: 15.5px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 1.75rem;
            line-height: 1.8;
        }

        .final-cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0A0D12;
            border-top: 1px solid var(--line);
            padding: 3.5rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-brand {
            margin-bottom: 1.25rem;
        }

        .footer-brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-top: .75rem;
            max-width: 300px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: .04em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 13.5px;
            color: var(--text-secondary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-copy {
            font-size: 12.5px;
            color: rgba(255,255,255,.4);
            letter-spacing: .03em;
        }

        .footer-meta {
            font-size: 12px;
            color: rgba(255,255,255,.35);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1199.98px) {
            .hero-title {
                font-size: 36px;
            }
            .topic-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .navbar .container {
                flex-wrap: wrap;
                padding-top: 8px;
                padding-bottom: 8px;
                min-height: auto;
            }
            .navbar-brand {
                font-size: 19px;
            }
            .navbar-nav {
                margin-left: 0;
                gap: 0;
                padding: .75rem 0;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px;
                font-size: 14px;
            }
            .navbar-nav .nav-link.active::after {
                bottom: 2px;
                left: 14px;
                right: 14px;
            }
            .step-item .step-text {
                display: none;
            }
            .step-separator {
                width: 8px;
            }
            .step-item {
                padding: 6px 12px;
                gap: 6px;
            }
            .step-item .step-num {
                width: 20px;
                height: 20px;
                font-size: 11px;
            }
            .hero-section {
                padding: 3rem 0 3.5rem;
                min-height: auto;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-desc {
                font-size: 14.5px;
            }
            .ba-body {
                grid-template-columns: 1fr;
            }
            .ba-panel-before {
                border-right: none;
                border-bottom: 1px solid var(--line);
            }
            .comparison-wrap {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .comparison-arrow {
                transform: rotate(90deg);
                padding: 2px 0;
            }
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .topic-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-item {
                grid-template-columns: 100px 1fr 60px;
                gap: .75rem;
            }
            .section-pad {
                padding: 3.5rem 0;
            }
            .section-pad-sm {
                padding: 2.5rem 0;
            }
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .container-wide {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }

        @media (max-width: 767.98px) {
            html {
                scroll-padding-top: calc(var(--header-height) + var(--step-height) + 8px);
            }
            .navbar-brand {
                font-size: 17px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .hero-title {
                font-size: 26px;
                line-height: 1.35;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
            h3 {
                font-size: 17px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-desc {
                font-size: 14px;
                line-height: 1.8;
            }
            .btn {
                font-size: 14px;
                padding: 10px 20px;
            }
            .btn-lg-custom {
                padding: 12px 26px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-data-row {
                gap: 16px 20px;
            }
            .hero-data-num {
                font-size: 24px;
            }
            .ba-body {
                grid-template-columns: 1fr;
            }
            .ba-vs {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .testimonial-card {
                padding: 1.25rem 1rem;
            }
            .data-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
                padding: 1.5rem 1rem;
            }
            .data-number {
                font-size: 28px;
            }
            .topic-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .topic-entry-card {
                padding: 1.1rem 1rem;
            }
            .topic-entry-title {
                font-size: 14px;
            }
            .topic-entry-desc {
                font-size: 12px;
            }
            .final-cta {
                padding: 2rem 1.25rem;
                border-radius: var(--radius-lg);
            }
            .final-cta h2 {
                font-size: 24px;
            }
            .final-cta p {
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .step-progress {
                min-height: 42px;
                padding: 4px 0;
            }
            .step-item .step-num {
                width: 18px;
                height: 18px;
                font-size: 10px;
            }
            .metrics-list {
                gap: 1rem;
            }
            .metric-item {
                grid-template-columns: 80px 1fr 50px;
                gap: .5rem;
            }
            .metric-label {
                font-size: 11px;
            }
            .metric-value {
                font-size: 16px;
            }
            .solution-main,
            .solution-aside,
            .brand-intro-wrap {
                padding: 1.25rem 1.1rem;
            }
            .steps-line::before {
                left: 18px;
            }
            .step-marker {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }
            .step-card {
                gap: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 22px;
            }
            .hero-desc {
                font-size: 13.5px;
            }
            .data-panel {
                grid-template-columns: 1fr 1fr;
                padding: 1.25rem .75rem;
                gap: .75rem;
            }
            .data-number {
                font-size: 24px;
            }
            .data-label {
                font-size: 11px;
            }
            .topic-entry-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .topic-entry-card {
                flex-direction: row;
                align-items: center;
                gap: 12px;
                padding: 0.9rem 1rem;
            }
            .topic-entry-desc {
                display: none;
            }
            .topic-entry-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .metric-item {
                grid-template-columns: 68px 1fr 42px;
                gap: .4rem;
            }
            .metric-label {
                font-size: 10px;
                letter-spacing: .02em;
            }
            .metric-value {
                font-size: 14px;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .section-pad-sm {
                padding: 2rem 0;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .container-wide {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .pain-list-item {
                gap: .85rem;
                padding: 1rem 0;
            }
            .pain-num {
                font-size: 22px;
                min-width: 36px;
            }
            .pain-content h3 {
                font-size: 16px;
            }
            .pain-content p {
                font-size: 13.5px;
            }
            .comparison-card {
                padding: 1.25rem 1rem;
            }
            .step-info h3 {
                font-size: 16px;
            }
            .step-info p {
                font-size: 13.5px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255, 255, 255, .08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, .3);
            --shadow-md: 0 12px 30px rgba(0, 0, 0, .45);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(255, 61, 61, .06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(0, 229, 255, .05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(255, 61, 61, .03) 0%, transparent 60%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #55f0ff;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        .section-pad {
            padding: 4rem 0;
        }
        .section-pad-sm {
            padding: 2.5rem 0;
        }

        .text-glow {
            text-shadow: 0 0 24px rgba(0, 229, 255, .35), 0 0 60px rgba(0, 229, 255, .12);
        }
        .text-glow-red {
            text-shadow: 0 0 24px rgba(255, 61, 61, .35), 0 0 60px rgba(255, 61, 61, .12);
        }
        .accent-text-2 {
            color: var(--accent-secondary);
        }

        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            padding: 5px 14px;
            border: 1px solid rgba(0, 229, 255, .35);
            border-radius: 20px;
            margin-bottom: 1rem;
            background: rgba(0, 229, 255, .05);
        }
        .section-label-red {
            color: var(--accent-primary);
            border-color: rgba(255, 61, 61, .35);
            background: rgba(255, 61, 61, .05);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 14, 20, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }
        .navbar {
            padding: 0;
            min-height: var(--header-height);
        }
        .navbar .container {
            min-height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-body);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: .02em;
            padding: 0;
            margin: 0;
            transition: var(--transition);
        }
        .navbar-brand:hover {
            color: var(--accent-secondary);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0;
            box-shadow: 0 4px 16px rgba(255, 61, 61, .3);
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 2px;
            margin-left: 1.5rem;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            letter-spacing: .02em;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .05);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0, 229, 255, .08);
        }
        .navbar-toggler {
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, .04);
            color: var(--text-primary);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23AAB6C5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Step progress */
        .step-progress {
            background: rgba(17, 23, 32, .8);
            border-top: 1px solid var(--line);
            padding: 8px 0;
            min-height: var(--step-height);
            display: flex;
            align-items: center;
        }
        .step-progress .container {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .step-progress .container::-webkit-scrollbar {
            display: none;
        }
        .step-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            padding: 4px 10px;
            border-radius: 6px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .step-item:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .05);
        }
        .step-item.active {
            color: var(--accent-secondary);
            background: rgba(0, 229, 255, .08);
        }
        .step-num {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 12px;
            flex-shrink: 0;
        }
        .step-item.active .step-num {
            background: var(--accent-secondary);
            color: #0B0E14;
        }
        .step-separator {
            width: 20px;
            height: 1px;
            background: var(--line);
            flex-shrink: 0;
        }

        /* ============ OFF-CANVAS MOBILE MENU ============ */
        .offcanvas {
            background: var(--bg-surface);
            border-left: 1px solid var(--line);
        }
        .offcanvas-header {
            border-bottom: 1px solid var(--line);
        }
        .offcanvas-body .navbar-nav .nav-link {
            padding: 12px 16px;
            font-size: 16px;
            border-radius: 8px;
        }

        /* ============ PAGE HERO / BREADCRUMB ============ */
        .page-hero {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--line);
            padding: 2.5rem 0 1.8rem;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 61, 61, .08) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            margin-bottom: 1.2rem;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .breadcrumb-item a {
            color: var(--text-secondary);
        }
        .breadcrumb-item a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-item.active {
            color: var(--accent-secondary);
        }
        .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-secondary);
            content: "›";
        }
        .page-hero h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }
        .page-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ============ FILTER TOOLBAR ============ */
        .filter-toolbar {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1rem 1.25rem;
            margin-bottom: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }
        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .filter-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-right: 4px;
            white-space: nowrap;
        }
        .filter-btn {
            background: transparent;
            border: 1px solid var(--line);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: rgba(0, 229, 255, .4);
            color: var(--text-primary);
            background: rgba(0, 229, 255, .06);
        }
        .filter-btn.active {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
            background: rgba(0, 229, 255, .08);
        }
        .sort-select {
            background: var(--bg-surface-2);
            border: 1px solid var(--line);
            color: var(--text-primary);
            font-size: 13px;
            padding: 5px 12px;
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
        }
        .sort-select:focus {
            border-color: var(--accent-secondary);
            outline: none;
        }

        /* ============ TACTIC CARDS ============ */
        .tactic-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .tactic-card:hover {
            border-color: rgba(0, 229, 255, .5);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .tactic-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-surface-2);
        }
        .tactic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .tactic-card:hover .tactic-card-img img {
            transform: scale(1.04);
        }
        .tactic-card-cat {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(11, 14, 20, .85);
            color: var(--accent-secondary);
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: .05em;
        }
        .tactic-card-body {
            padding: 1.2rem 1.25rem 1.4rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .tactic-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.45;
            transition: var(--transition);
        }
        .tactic-card-title a {
            color: var(--text-primary);
        }
        .tactic-card-title a:hover {
            color: var(--accent-secondary);
        }
        .tactic-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
            flex-grow: 1;
        }
        .tactic-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            font-size: 12px;
            color: var(--text-secondary);
            padding-top: 0.8rem;
            border-top: 1px solid var(--line);
        }
        .tactic-card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .tactic-card-meta .meta-tag {
            background: rgba(0, 229, 255, .08);
            color: var(--accent-secondary);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 500;
        }
        .tactic-card-meta .meta-read {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ============ FEATURED ============ */
        .featured-card {
            background: var(--bg-surface-2);
            border: 1px solid rgba(0, 229, 255, .2);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow-md);
        }
        .featured-card:hover {
            border-color: rgba(0, 229, 255, .45);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .featured-card-img {
            aspect-ratio: 21/9;
            overflow: hidden;
            position: relative;
        }
        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-card:hover .featured-card-img img {
            transform: scale(1.03);
        }
        .featured-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: .05em;
        }
        .featured-card-body {
            padding: 1.5rem 1.5rem 1.6rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .featured-card-title {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }
        .featured-card-title a {
            color: var(--text-primary);
        }
        .featured-card-title a:hover {
            color: var(--accent-secondary);
        }
        .featured-card-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1rem;
            flex-grow: 1;
        }
        .featured-card-meta {
            display: flex;
            gap: 14px;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ============ DATA BARS ============ */
        .data-panel {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.5rem 1.8rem;
            box-shadow: var(--shadow-sm);
        }
        .data-panel h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text-primary);
        }
        .data-bar-item {
            margin-bottom: 1.1rem;
        }
        .data-bar-item:last-child {
            margin-bottom: 0;
        }
        .data-bar-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            margin-bottom: 6px;
        }
        .data-bar-name {
            color: var(--text-primary);
            font-weight: 500;
        }
        .data-bar-value {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 16px;
            color: var(--accent-secondary);
        }
        .data-bar-track {
            height: 8px;
            background: rgba(255, 255, 255, .06);
            border-radius: 4px;
            overflow: hidden;
        }
        .data-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            transition: width 1s ease;
        }
        .data-bar-fill.alt {
            background: linear-gradient(90deg, var(--accent-secondary) 0%, var(--success) 100%);
        }
        .data-bar-fill.warn {
            background: linear-gradient(90deg, var(--warning) 0%, var(--accent-primary) 100%);
        }

        /* ============ TAGS WALL ============ */
        .tag-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }
        .tag-wall .tag-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 6px 18px;
            border-radius: 24px;
            cursor: default;
            transition: var(--transition);
            white-space: nowrap;
        }
        .tag-wall .tag-item:hover {
            border-color: rgba(255, 61, 61, .4);
            color: var(--accent-primary);
            background: rgba(255, 61, 61, .05);
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-box {
            background: linear-gradient(135deg, rgba(255, 61, 61, .06) 0%, rgba(0, 229, 255, .04) 50%, rgba(255, 255, 255, .02) 100%);
            border: 1px solid rgba(0, 229, 255, .2);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2.5rem;
            box-shadow: var(--shadow-md);
        }
        .subscribe-box h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .subscribe-box p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 1.5rem;
            max-width: 560px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .subscribe-form .form-input {
            flex: 1;
            min-width: 240px;
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 15px;
            padding: 10px 16px;
            transition: var(--transition);
        }
        .subscribe-form .form-input::placeholder {
            color: var(--text-secondary);
            opacity: .7;
        }
        .subscribe-form .form-input:focus {
            border-color: var(--accent-secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 229, 255, .12);
        }
        .subscribe-form .btn-subscribe {
            background: var(--accent-primary);
            color: #fff;
            border: none;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-form .btn-subscribe:hover {
            background: #ff5252;
            box-shadow: 0 4px 20px rgba(255, 61, 61, .35);
        }

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.8rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-item:last-child {
            margin-bottom: 0;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 1.1rem 1.4rem;
            border-radius: var(--radius-md) !important;
            transition: var(--transition);
            box-shadow: none;
            position: relative;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-surface-2);
            color: var(--accent-secondary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            filter: invert(1) brightness(.8);
            transition: transform .3s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(1) brightness(1);
            transform: rotate(45deg);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, .1);
            border-color: rgba(0, 229, 255, .3);
        }
        .faq-accordion .accordion-body {
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            padding: 1rem 1.4rem 1.3rem;
            border-top: 1px solid var(--line);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--line);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1rem;
        }
        .footer-brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 340px;
            margin-bottom: 0;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links li:last-child {
            margin-bottom: 0;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-secondary);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 2.5rem;
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .footer-copy {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .footer-meta {
            font-size: 13px;
            color: rgba(170, 182, 197, .6);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 30px;
            }
            .section-pad {
                padding: 3rem 0;
            }
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 25px;
            }
            .page-hero .hero-desc {
                font-size: 14px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .subscribe-box {
                padding: 1.5rem 1.25rem;
            }
            .subscribe-form .form-input {
                min-width: 100%;
            }
            .featured-card-img {
                aspect-ratio: 16/9;
            }
            .section-pad {
                padding: 2.2rem 0;
            }
            .section-pad-sm {
                padding: 1.8rem 0;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 22px;
            }
            .page-hero {
                padding: 1.8rem 0 1.2rem;
            }
            .tactic-card-title {
                font-size: 15px;
            }
            .tactic-card-excerpt {
                font-size: 13px;
            }
            .featured-card-title {
                font-size: 16px;
            }
            .data-panel {
                padding: 1.2rem 1rem 1.4rem;
            }
            .subscribe-box {
                padding: 1.2rem 1rem;
            }
            .tag-wall .tag-item {
                font-size: 12px;
                padding: 5px 14px;
            }
        }

        @media (max-width: 360px) {
            .page-hero h1 {
                font-size: 20px;
            }
            .breadcrumb {
                font-size: 11px;
            }
            .navbar-brand {
                font-size: 18px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255, 255, 255, .08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, .3);
            --shadow-md: 0 12px 30px rgba(0, 0, 0, .45);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 12%, rgba(255, 61, 61, .06) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 25%, rgba(0, 229, 255, .05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 75%, rgba(255, 61, 61, .03) 0%, transparent 60%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: #55f0ff;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        .section-pad {
            padding: 5rem 0;
        }

        .section-pad-sm {
            padding: 3.5rem 0;
        }

        .text-glow {
            text-shadow: 0 0 24px rgba(0, 229, 255, .35), 0 0 60px rgba(0, 229, 255, .12);
        }

        .text-glow-red {
            text-shadow: 0 0 24px rgba(255, 61, 61, .35), 0 0 60px rgba(255, 61, 61, .12);
        }

        .accent-text-2 {
            color: var(--accent-secondary);
        }

        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            padding: 5px 14px;
            border: 1px solid rgba(0, 229, 255, .35);
            border-radius: 20px;
            margin-bottom: 1rem;
            background: rgba(0, 229, 255, .05);
        }

        .section-label-red {
            color: var(--accent-primary);
            border-color: rgba(255, 61, 61, .35);
            background: rgba(255, 61, 61, .05);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 14, 20, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }

        .navbar {
            padding: 0;
            min-height: var(--header-height);
        }

        .navbar .container {
            min-height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-body);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: .02em;
            padding: 0;
            margin: 0;
            transition: var(--transition);
        }

        .navbar-brand:hover {
            color: var(--accent-secondary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0;
            box-shadow: 0 4px 16px rgba(255, 61, 61, .3);
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 2px;
            margin-left: 1.5rem;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            letter-spacing: .02em;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .05);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0, 229, 255, .08);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-secondary);
            border-radius: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            background: rgba(255, 255, 255, .03);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23AAB6C5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Offcanvas mobile menu */
        .offcanvas {
            background: var(--bg-surface);
            border-left: 1px solid var(--line);
        }

        .offcanvas-header {
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.5rem;
        }

        .offcanvas-title {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 18px;
        }

        .btn-close {
            filter: invert(1) brightness(2);
        }

        .offcanvas-body .navbar-nav {
            margin: 0;
            gap: 4px;
        }

        .offcanvas-body .nav-link {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 16px;
        }

        /* Step progress bar */
        .step-progress {
            background: rgba(11, 14, 20, .96);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            min-height: var(--step-height);
            display: flex;
            align-items: center;
        }

        .step-progress .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-height: var(--step-height);
            padding-top: 6px;
            padding-bottom: 6px;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .step-item:hover {
            color: var(--text-primary);
        }

        .step-item.active {
            color: var(--accent-secondary);
        }

        .step-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .step-item.active .step-num {
            background: rgba(0, 229, 255, .12);
            border-color: rgba(0, 229, 255, .45);
            color: var(--accent-secondary);
            box-shadow: 0 0 14px rgba(0, 229, 255, .2);
        }

        .step-item:hover .step-num {
            border-color: rgba(0, 229, 255, .35);
            color: var(--text-primary);
        }

        .step-separator {
            width: 32px;
            height: 1px;
            background: var(--line);
            margin: 0 12px;
            flex-shrink: 0;
        }

        /* ============ CATEGORY HEADER ============ */
        .category-hero {
            padding: 3rem 0 2.5rem;
            background: linear-gradient(180deg, rgba(17, 23, 32, .9) 0%, rgba(11, 14, 20, .95) 100%);
            border-bottom: 1px solid var(--line);
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/e87270af326ef2cd.webp');
            background-size: cover;
            background-position: center 35%;
            opacity: .12;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            margin-bottom: 1.25rem;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

        .breadcrumb a:hover {
            color: var(--accent-secondary);
        }

        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--text-secondary);
            opacity: .5;
        }

        .breadcrumb .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: var(--text-primary);
            letter-spacing: .01em;
        }

        .category-hero .category-lead {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ============ FILTER TOOLBAR ============ */
        .filter-toolbar {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            box-shadow: var(--shadow-sm);
        }

        .filter-toolbar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
        }

        .filter-toolbar select,
        .filter-toolbar input[type="text"] {
            background: var(--bg-surface-2);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 8px 14px;
            font-size: 14px;
            min-width: 140px;
            transition: var(--transition);
        }

        .filter-toolbar select:focus,
        .filter-toolbar input[type="text"]:focus {
            outline: none;
            border-color: var(--accent-secondary);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, .1);
        }

        .filter-toolbar select option {
            background: var(--bg-surface-2);
            color: var(--text-primary);
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--line);
            color: var(--text-secondary);
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: rgba(0, 229, 255, .4);
            color: var(--accent-secondary);
        }

        .filter-tag.active {
            background: rgba(0, 229, 255, .1);
            border-color: rgba(0, 229, 255, .5);
            color: var(--accent-secondary);
        }

        /* ============ CARD GRID ============ */
        .review-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .review-card:hover {
            border-color: rgba(0, 229, 255, .5);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .review-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .review-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .review-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .review-card .card-img-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 14, 20, .6) 100%);
            pointer-events: none;
        }

        .review-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(11, 14, 20, .85);
            border: 1px solid rgba(255, 61, 61, .45);
            color: #ff6b6b;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: .04em;
        }

        .review-card .card-body {
            padding: 1.25rem 1.35rem 1.35rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .review-card .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: .6rem;
            color: var(--text-primary);
        }

        .review-card .card-title a {
            color: var(--text-primary);
        }

        .review-card .card-title a:hover {
            color: var(--accent-secondary);
        }

        .review-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
            flex-grow: 1;
        }

        .review-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            padding-top: .8rem;
            border-top: 1px solid var(--line);
        }

        .review-card .card-meta .meta-icon {
            color: var(--accent-secondary);
            font-size: 13px;
        }

        .review-card .card-meta .tag {
            background: rgba(255, 255, 255, .05);
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ============ FEATURED REVIEW ============ */
        .featured-card {
            background: var(--bg-surface);
            border: 1px solid rgba(0, 229, 255, .25);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-md);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            border-color: rgba(0, 229, 255, .6);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .featured-card .featured-img {
            position: relative;
            aspect-ratio: 16/8;
            overflow: hidden;
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .featured-card:hover .featured-img img {
            transform: scale(1.04);
        }

        .featured-card .featured-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 14, 20, .75) 100%);
            pointer-events: none;
        }

        .featured-card .featured-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: var(--accent-primary);
            color: #fff;
            font-weight: 700;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: .04em;
        }

        .featured-card .card-body {
            padding: 1.6rem 1.8rem 1.8rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .card-title {
            font-size: 22px;
            font-weight: 800;
            line-height: 1.45;
            margin-bottom: .8rem;
            color: var(--text-primary);
        }

        .featured-card .card-title a {
            color: var(--text-primary);
        }

        .featured-card .card-title a:hover {
            color: var(--accent-secondary);
        }

        .featured-card .card-excerpt {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1.2rem;
            flex-grow: 1;
        }

        .featured-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-secondary);
            padding-top: 1rem;
            border-top: 1px solid var(--line);
        }

        /* ============ DATA BAR / RANKING ============ */
        .data-panel {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.8rem;
            box-shadow: var(--shadow-sm);
        }

        .data-row {
            margin-bottom: 1.4rem;
        }

        .data-row:last-child {
            margin-bottom: 0;
        }

        .data-row .data-row-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            margin-bottom: .6rem;
        }

        .data-row .data-row-label {
            font-weight: 600;
            color: var(--text-primary);
        }

        .data-row .data-row-value {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: .03em;
        }

        .data-row .progress {
            height: 6px;
            background: rgba(255, 255, 255, .06);
            border-radius: 4px;
            overflow: hidden;
        }

        .data-row .progress-bar {
            border-radius: 4px;
            background: linear-gradient(90deg, var(--accent-secondary) 0%, #00b8cc 100%);
            transition: width 1.2s ease;
        }

        .data-row .progress-bar.warm {
            background: linear-gradient(90deg, var(--warning) 0%, #ff9500 100%);
        }

        .data-row .progress-bar.hot {
            background: linear-gradient(90deg, var(--accent-primary) 0%, #c62828 100%);
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-panel {
            background: linear-gradient(135deg, rgba(17, 23, 32, .95) 0%, rgba(23, 32, 43, .95) 100%);
            border: 1px solid rgba(0, 229, 255, .2);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2.5rem;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .subscribe-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 255, .08) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .subscribe-panel .subscribe-title {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: .6rem;
            color: var(--text-primary);
        }

        .subscribe-panel .subscribe-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            max-width: 500px;
            line-height: 1.75;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .subscribe-form label {
            display: none;
        }

        .subscribe-form input[type="email"] {
            background: rgba(11, 14, 20, .7);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 12px 18px;
            font-size: 15px;
            flex: 1 1 260px;
            transition: var(--transition);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent-secondary);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, .1);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: rgba(170, 182, 197, .5);
        }

        .btn-primary-custom {
            background: var(--accent-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: .02em;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 61, 61, .3);
        }

        .btn-primary-custom:hover {
            background: #ff5252;
            box-shadow: 0 6px 24px rgba(255, 61, 61, .45);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-secondary-custom {
            background: transparent;
            border: 1px solid rgba(0, 229, 255, .4);
            color: var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 11px 26px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-secondary-custom:hover {
            background: rgba(0, 229, 255, .08);
            border-color: rgba(0, 229, 255, .7);
            color: #55f0ff;
        }

        .subscribe-success {
            display: none;
            font-size: 14px;
            color: var(--success);
            margin-top: 10px;
            font-weight: 500;
        }

        .subscribe-success.show {
            display: block;
        }

        /* ============ TOPIC TAGS ============ */
        .topic-tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--line);
            color: var(--text-secondary);
            background: rgba(255, 255, 255, .03);
            transition: var(--transition);
            cursor: default;
        }

        .topic-tag:hover {
            border-color: rgba(255, 61, 61, .4);
            color: #ff6b6b;
            background: rgba(255, 61, 61, .05);
        }

        .topic-tag .tag-icon {
            font-size: 13px;
            color: var(--accent-secondary);
        }

        /* ============ SECTION HEADINGS ============ */
        .section-heading {
            margin-bottom: 2.5rem;
        }

        .section-heading h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: .8rem;
            color: var(--text-primary);
        }

        .section-heading .heading-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.75;
        }

        /* ============ FAQ ============ */
        .accordion-custom .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            border-left: 3px solid var(--accent-primary);
            transition: var(--transition);
        }

        .accordion-custom .accordion-item:hover {
            border-left-color: var(--accent-secondary);
            border-color: rgba(0, 229, 255, .25);
        }

        .accordion-custom .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 16px;
            padding: 1.1rem 1.4rem;
            border: none;
            border-radius: 0 !important;
            box-shadow: none;
            transition: var(--transition);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-surface-2);
            color: var(--accent-secondary);
            box-shadow: none;
        }

        .accordion-custom .accordion-button::after {
            filter: invert(1) brightness(2);
            transition: var(--transition);
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .accordion-custom .accordion-body {
            background: var(--bg-surface-2);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 1.1rem 1.4rem 1.4rem;
            border-top: 1px solid var(--line);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #090C11;
            border-top: 1px solid var(--line);
            padding: 3.5rem 0 1.5rem;
            margin-top: 4rem;
        }

        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
            max-width: 340px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.1rem;
            letter-spacing: .03em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: .6rem;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 2rem;
            margin-top: 2.5rem;
            border-top: 1px solid var(--line);
            font-size: 13px;
            color: var(--text-secondary);
        }

        .footer-copy {
            color: var(--text-secondary);
        }

        .footer-meta {
            color: rgba(170, 182, 197, .6);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .navbar-nav {
                gap: 0;
                margin-left: 1rem;
            }
            .navbar-nav .nav-link {
                padding: 8px 12px;
                font-size: 14px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            .step-progress .container {
                gap: 0;
                overflow-x: auto;
                scrollbar-width: none;
                -ms-overflow-style: none;
            }
            .step-progress .container::-webkit-scrollbar {
                display: none;
            }
            .step-separator {
                width: 16px;
                margin: 0 6px;
            }
            .step-text {
                display: none;
            }
            .step-num {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
            .category-hero {
                padding: 2.5rem 0 2rem;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .category-lead {
                font-size: 15px;
            }
            .filter-toolbar {
                padding: .8rem 1rem;
                gap: 8px;
            }
            .filter-toolbar select,
            .filter-toolbar input[type="text"] {
                min-width: 120px;
                padding: 6px 10px;
                font-size: 13px;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 12px;
            }
            .review-card .card-title {
                font-size: 16px;
            }
            .featured-card .card-title {
                font-size: 19px;
            }
            .featured-card .card-body {
                padding: 1.2rem 1.4rem 1.4rem;
            }
            .subscribe-panel {
                padding: 1.8rem 1.5rem;
            }
            .subscribe-panel .subscribe-title {
                font-size: 20px;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                padding: 10px 20px;
                font-size: 14px;
            }
            .accordion-custom .accordion-button {
                font-size: 15px;
                padding: .9rem 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .navbar-brand {
                font-size: 19px;
                gap: 8px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .section-heading h2 {
                font-size: 21px;
            }
            .review-card .card-body {
                padding: 1rem 1.1rem 1.1rem;
            }
            .review-card .card-title {
                font-size: 15px;
            }
            .review-card .card-excerpt {
                font-size: 13px;
            }
            .featured-card .featured-img {
                aspect-ratio: 16/10;
            }
            .featured-card .card-body {
                padding: 1rem 1.2rem 1.2rem;
            }
            .featured-card .card-title {
                font-size: 17px;
            }
            .subscribe-panel {
                padding: 1.4rem 1.2rem;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input[type="email"] {
                flex: 1 1 auto;
                width: 100%;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                text-align: center;
            }
            .data-panel {
                padding: 1.2rem 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 360px) {
            .navbar-brand {
                font-size: 17px;
            }
            .category-hero h1 {
                font-size: 19px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-toolbar select,
            .filter-toolbar input[type="text"] {
                width: 100%;
                min-width: auto;
            }
            .topic-tag {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
  --bg-primary: #0B0E14;
  --bg-surface: #111720;
  --bg-surface-2: #17202B;
  --text-primary: #F4F6FB;
  --text-secondary: #AAB6C5;
  --accent-primary: #FF3D3D;
  --accent-secondary: #00E5FF;
  --success: #2ED573;
  --warning: #FFB020;
  --line: rgba(255,255,255,.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 4px 16px rgba(0,0,0,.3);
  --shadow-md: 0 12px 30px rgba(0,0,0,.45);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
  --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
  --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
  --transition: all .3s ease;
  --header-height: 68px;
  --step-height: 48px;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(255,61,61,.06) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(0,229,255,.05) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 80%, rgba(255,61,61,.03) 0%, transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}
a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: #55f0ff;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-secondary);
  outline-offset: 3px;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  max-width: 1200px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.container-wide {
  max-width: 1320px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  margin: 0 auto;
}
.section-pad {
  padding: 5rem 0;
}
.section-pad-sm {
  padding: 3.5rem 0;
}
.text-glow {
  text-shadow: 0 0 24px rgba(0,229,255,.35), 0 0 60px rgba(0,229,255,.12);
}
.text-glow-red {
  text-shadow: 0 0 24px rgba(255,61,61,.35), 0 0 60px rgba(255,61,61,.12);
}
.accent-text-2 {
  color: var(--accent-secondary);
}
.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-secondary);
  padding: 5px 14px;
  border: 1px solid rgba(0,229,255,.35);
  border-radius: 20px;
  margin-bottom: 1rem;
  background: rgba(0,229,255,.05);
}
.section-label-red {
  color: var(--accent-primary);
  border-color: rgba(255,61,61,.35);
  background: rgba(255,61,61,.05);
}
/* ============ HEADER / NAV ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(11,14,20,.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.navbar {
  padding: 0;
  min-height: var(--header-height);
}
.navbar .container {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: .02em;
  padding: 0;
  margin: 0 1rem 0 0;
  transition: var(--transition);
}
.navbar-brand:hover {
  color: var(--accent-secondary);
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  font-weight: 800;
  font-family: var(--font-display);
  letter-spacing: 0;
  box-shadow: 0 4px 16px rgba(255,61,61,.3);
  flex-shrink: 0;
}
.navbar-nav {
  gap: 2px;
}
.navbar-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  letter-spacing: .02em;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.navbar-nav .nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,.05);
}
.navbar-nav .nav-link.active {
  color: var(--accent-secondary);
  background: rgba(0,229,255,.08);
}
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--accent-secondary);
  box-shadow: 0 0 10px var(--accent-secondary);
}
.navbar-toggler {
  border: 1px solid var(--line);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  transition: var(--transition);
}
.navbar-toggler:hover {
  border-color: var(--accent-secondary);
  background: rgba(0,229,255,.06);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F4F6FB' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.offcanvas {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-left: 1px solid var(--line);
}
.offcanvas-header {
  border-bottom: 1px solid var(--line);
  padding: 1rem 1.5rem;
}
.offcanvas-title {
  color: var(--text-primary);
  font-weight: 700;
}
.btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}
.offcanvas-body {
  padding: 1rem 1.5rem;
}
.offcanvas-body .navbar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.offcanvas-body .nav-link {
  font-size: 17px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}
/* step progress */
.step-progress {
  background: rgba(11,14,20,.7);
  border-bottom: 1px solid var(--line);
  height: var(--step-height);
  display: flex;
  align-items: center;
}
.step-progress .container {
  display: flex;
  align-items: center;
  gap: 6px;
}
.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 999px;
  transition: var(--transition);
  white-space: nowrap;
}
.step-item:hover {
  color: var(--accent-secondary);
  background: rgba(0,229,255,.05);
}
.step-item.active {
  color: var(--accent-secondary);
  background: rgba(0,229,255,.08);
}
.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-surface-2);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.step-item.active .step-num,
.step-item:hover .step-num {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  box-shadow: 0 0 12px rgba(0,229,255,.25);
}
.step-separator {
  width: 24px;
  height: 1px;
  background: var(--line);
  flex-shrink: 0;
}
/* category header */
.category-head {
  padding: 2.5rem 0 2rem;
  position: relative;
  overflow: hidden;
}
.category-head::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/68e406f840945593.webp');
  background-size: cover;
  background-position: center;
  opacity: .2;
  pointer-events: none;
}
.category-head .container {
  position: relative;
}
.breadcrumb-wrap {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}
.breadcrumb-wrap a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}
.breadcrumb-wrap a:hover {
  color: var(--accent-secondary);
}
.breadcrumb-sep {
  margin: 0 8px;
  color: var(--line);
}
.category-head h1 {
  font-size: 36px;
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: .75rem;
}
.category-head .lead {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.85;
}
/* filter bar */
.filter-bar {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 2rem;
}
.filter-bar .filter-label {
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.filter-bar .form-select {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  min-width: 160px;
  padding: 8px 32px 8px 12px;
  font-size: 14px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23AAB6C5' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 12px;
  appearance: none;
}
.filter-bar .form-select:focus {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 3px rgba(0,229,255,.1);
  outline: none;
}
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}
.tag-filter {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.tag-filter:hover {
  border-color: rgba(0,229,255,.5);
  color: var(--accent-secondary);
}
.tag-filter.active {
  border-color: var(--accent-secondary);
  background: rgba(0,229,255,.1);
  color: var(--accent-secondary);
}
/* training card */
.training-card {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  box-shadow: var(--shadow-sm);
}
.training-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0,229,255,.5);
  box-shadow: var(--shadow-md);
}
.training-card .card-img-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-surface-2);
}
.training-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.training-card:hover .card-img-wrap img {
  transform: scale(1.04);
}
.training-card .card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11,14,20,.8);
  border: 1px solid rgba(0,229,255,.4);
  color: var(--accent-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: .04em;
  backdrop-filter: blur(6px);
}
.training-card .card-body {
  padding: 1.25rem;
}
.training-card .card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: .5rem;
  line-height: 1.5;
}
.training-card .card-text {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.training-card .card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--line);
  padding-top: .75rem;
}
.training-card .card-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.training-card .card-meta i {
  color: var(--accent-secondary);
  font-size: 12px;
}
/* featured post */
.featured-post {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 2.5rem;
}
.featured-post .featured-img {
  min-height: 320px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.featured-post .featured-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(11,14,20,.6) 100%);
}
.featured-post .featured-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.featured-post .featured-label {
  color: var(--accent-secondary);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: .75rem;
}
.featured-post h2 {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 1rem;
}
.featured-post p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 1.5rem;
}
/* data panel */
.data-panel {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.data-panel h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 1.5rem;
}
.data-row {
  margin-bottom: 1.5rem;
}
.data-row:last-child {
  margin-bottom: 0;
}
.data-row .data-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: .5rem;
}
.data-row .data-value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-secondary);
}
.progress {
  background: var(--bg-primary);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.progress-bar {
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
  transition: width .5s ease;
}
/* subscribe CTA */
.subscribe-cta {
  background: var(--bg-surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.subscribe-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,229,255,.09) 0%, transparent 60%);
  pointer-events: none;
}
.subscribe-cta h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: .75rem;
  position: relative;
}
.subscribe-cta p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  position: relative;
}
.subscribe-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  position: relative;
}
.subscribe-form label {
  display: none;
}
.subscribe-form .form-control {
  background: var(--bg-primary);
  border: 1px solid var(--line);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  min-width: 280px;
  max-width: 100%;
  font-size: 15px;
  transition: var(--transition);
}
.subscribe-form .form-control:focus {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 3px rgba(0,229,255,.1);
  outline: none;
}
.subscribe-form .btn-subscribe {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: var(--accent-primary);
  color: #0B0E14;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.subscribe-form .btn-subscribe:hover {
  background: #ff5b5b;
  box-shadow: 0 0 20px rgba(255,61,61,.35);
}
.form-success {
  display: none;
  color: var(--success);
  font-size: 14px;
  margin-top: .75rem;
  position: relative;
}
.form-success.show {
  display: block;
}
/* topic tags */
.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.topic-tag {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--line);
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}
.topic-tag:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  background: rgba(0,229,255,.05);
}
/* FAQ */
.accordion-item {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md) !important;
  margin-bottom: 12px;
  overflow: hidden;
}
.accordion-button {
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  border-radius: 0;
  box-shadow: none;
  border-left: 3px solid var(--accent-primary);
}
.accordion-button:not(.collapsed) {
  background: rgba(255,61,61,.05);
  color: var(--text-primary);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: none;
  border-color: var(--accent-secondary);
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23AAB6C5'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition: var(--transition);
}
.accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}
.accordion-body {
  color: var(--text-secondary);
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--line);
  line-height: 1.8;
}
/* footer */
.site-footer {
  background: #070A0F;
  border-top: 1px solid var(--line);
  padding: 4rem 0 1.5rem;
  margin-top: 5rem;
}
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.footer-brand-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}
.footer-heading {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent-secondary);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: 13px;
  color: var(--text-secondary);
}
/* buttons */
.btn-primary-custom {
  background: var(--accent-primary);
  color: #0B0E14;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  text-decoration: none;
}
.btn-primary-custom:hover {
  background: #ff5b5b;
  color: #0B0E14;
  box-shadow: 0 0 20px rgba(255,61,61,.35);
}
.btn-secondary-custom {
  background: transparent;
  color: var(--accent-secondary);
  font-weight: 600;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-secondary);
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  text-decoration: none;
}
.btn-secondary-custom:hover {
  background: rgba(0,229,255,.08);
  color: var(--accent-secondary);
}
/* responsive */
@media (max-width: 1024px) {
  .category-head h1 {
    font-size: 30px;
  }
  .featured-post {
    grid-template-columns: 1fr;
  }
  .featured-post .featured-img {
    min-height: 240px;
  }
}
@media (max-width: 768px) {
  .section-pad {
    padding: 3.5rem 0;
  }
  .section-pad-sm {
    padding: 2.5rem 0;
  }
  .category-head h1 {
    font-size: 26px;
  }
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar .form-select {
    width: 100%;
  }
  .tag-filters {
    margin-left: 0;
  }
  .subscribe-form {
    flex-direction: column;
    align-items: stretch;
  }
  .subscribe-form .form-control {
    min-width: auto;
  }
  .subscribe-form .btn-subscribe {
    width: 100%;
  }
}
@media (max-width: 576px) {
  .step-text {
    display: none;
  }
  .step-separator {
    width: 12px;
  }
  .step-item {
    padding: 6px 8px;
  }
  .step-num {
    width: 20px;
    height: 20px;
    font-size: 11px;
  }
  .category-head {
    padding: 2rem 0 1.5rem;
  }
  .category-head .lead {
    font-size: 15px;
  }
  .training-card .card-body {
    padding: 1rem;
  }
  .data-panel {
    padding: 1.5rem;
  }
  .featured-post .featured-content {
    padding: 1.5rem;
  }
}

/* roulang page: category4 */
:root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255,255,255,.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0,0,0,.3);
            --shadow-md: 0 12px 30px rgba(0,0,0,.45);
            --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(255,61,61,.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(0,229,255,.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(255,61,61,.03) 0%, transparent 60%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: #55f0ff;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        .section-pad {
            padding: 5rem 0;
        }

        .section-pad-sm {
            padding: 3.5rem 0;
        }

        .text-glow {
            text-shadow: 0 0 24px rgba(0,229,255,.35), 0 0 60px rgba(0,229,255,.12);
        }

        .text-glow-red {
            text-shadow: 0 0 24px rgba(255,61,61,.35), 0 0 60px rgba(255,61,61,.12);
        }

        .accent-text-2 {
            color: var(--accent-secondary);
        }

        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            padding: 5px 14px;
            border: 1px solid rgba(0,229,255,.35);
            border-radius: 20px;
            margin-bottom: 1rem;
            background: rgba(0,229,255,.05);
        }

        .section-label-red {
            color: var(--accent-primary);
            border-color: rgba(255,61,61,.35);
            background: rgba(255,61,61,.05);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11,14,20,.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }

        .navbar {
            padding: 0;
            min-height: var(--header-height);
        }

        .navbar .container {
            min-height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-body);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: .02em;
            padding: 0;
            margin: 0;
            transition: var(--transition);
        }

        .navbar-brand:hover {
            color: var(--accent-secondary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0;
            box-shadow: 0 4px 16px rgba(255,61,61,.3);
            flex-shrink: 0;
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            color: var(--text-primary);
            background: rgba(255,255,255,.05);
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(0,229,255,.35);
        }

        .navbar-toggler-icon {
            background-image: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 20px;
        }

        .navbar-toggler-icon::before {
            content: "\f0c9";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
        }

        .navbar-nav {
            gap: 2px;
            margin-left: 1.5rem;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            letter-spacing: .02em;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.05);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.08);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent-secondary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0,229,255,.6);
        }

        .step-progress {
            background: rgba(23,32,43,.85);
            border-top: 1px solid var(--line);
            height: var(--step-height);
            display: flex;
            align-items: center;
        }

        .step-progress .container {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
            max-width: 1200px;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: .02em;
            transition: var(--transition);
            white-space: nowrap;
            padding: 4px 10px;
            border-radius: 6px;
        }

        .step-item:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.04);
        }

        .step-item.active {
            color: var(--accent-secondary);
        }

        .step-num {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.12);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-display);
            flex-shrink: 0;
        }

        .step-item.active .step-num {
            background: rgba(0,229,255,.12);
            border-color: rgba(0,229,255,.45);
            color: var(--accent-secondary);
            box-shadow: 0 0 10px rgba(0,229,255,.2);
        }

        .step-separator {
            flex: 1;
            height: 1px;
            background: rgba(255,255,255,.07);
            margin: 0 12px;
            min-width: 20px;
        }

        /* ============ OFFCANVAS ============ */
        .offcanvas {
            background: var(--bg-surface);
            color: var(--text-primary);
            border-left: 1px solid var(--line);
        }

        .offcanvas-header {
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.5rem;
        }

        .offcanvas-title {
            font-family: var(--font-body);
            font-weight: 700;
            color: var(--text-primary);
        }

        .btn-close {
            filter: invert(1) grayscale(100%) brightness(200%);
            opacity: .7;
        }

        .offcanvas-body {
            padding: 1rem 1.5rem;
        }

        .offcanvas .navbar-nav {
            margin-left: 0;
            gap: 6px;
        }

        .offcanvas .nav-link {
            font-size: 16px;
            padding: 12px 16px;
            border-radius: 8px;
        }

        /* ============ PAGE HEAD ============ */
        .page-head {
            background: linear-gradient(135deg, rgba(23,32,43,.95) 0%, rgba(11,14,20,.95) 100%);
            border-bottom: 1px solid var(--line);
            padding: 2.5rem 0 2rem;
            position: relative;
            overflow: hidden;
        }

        .page-head::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-primary) 100%);
        }

        .breadcrumb {
            margin-bottom: 1rem;
            --bs-breadcrumb-divider-color: var(--text-secondary);
            --bs-breadcrumb-item-active-color: var(--text-secondary);
            font-size: 14px;
        }

        .breadcrumb a {
            color: var(--accent-secondary);
        }

        .breadcrumb a:hover {
            color: #55f0ff;
        }

        .page-head h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            letter-spacing: .01em;
        }

        .page-head .lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ============ FILTER TOOLBAR ============ */
        .filter-toolbar {
            padding: 1.25rem 0;
            background: var(--bg-surface);
            border-bottom: 1px solid var(--line);
        }

        .filter-toolbar .form-select,
        .filter-toolbar .form-select:focus {
            background-color: var(--bg-surface-2);
            color: var(--text-primary);
            border: 1px solid var(--line);
            border-radius: 8px;
            font-size: 14px;
            padding: 8px 14px;
            appearance: auto;
            min-width: 140px;
            box-shadow: none;
        }

        .filter-toolbar .form-select option {
            background: var(--bg-surface-2);
            color: var(--text-primary);
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-tag {
            padding: 6px 14px;
            font-size: 13px;
            border-radius: 20px;
            background: rgba(255,255,255,.04);
            border: 1px solid var(--line);
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
            font-weight: 500;
        }

        .filter-tag:hover {
            color: var(--text-primary);
            border-color: rgba(0,229,255,.35);
            background: rgba(0,229,255,.06);
        }

        .filter-tag.active {
            color: var(--accent-secondary);
            border-color: rgba(0,229,255,.45);
            background: rgba(0,229,255,.1);
            box-shadow: 0 0 14px rgba(0,229,255,.12);
        }

        /* ============ CARDS GRID ============ */
        .player-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            padding: 3.5rem 0;
        }

        .player-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .player-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0,229,255,.5);
            box-shadow: var(--shadow-md);
        }

        .player-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .player-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }

        .player-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .player-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,14,20,.1) 0%, rgba(11,14,20,.45) 100%);
        }

        .player-card .card-body {
            padding: 1.25rem 1.25rem 1.5rem;
        }

        .player-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 0.5rem;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            font-size: 11px;
            font-weight: 600;
            border-radius: 12px;
            letter-spacing: .03em;
            line-height: 1.6;
        }

        .badge-position {
            background: rgba(255,61,61,.08);
            color: var(--accent-primary);
            border: 1px solid rgba(255,61,61,.25);
        }

        .badge-team {
            background: rgba(0,229,255,.08);
            color: var(--accent-secondary);
            border: 1px solid rgba(0,229,255,.25);
        }

        .badge-mvp {
            background: rgba(255,176,32,.1);
            color: var(--warning);
            border: 1px solid rgba(255,176,32,.3);
        }

        .player-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 0.35rem;
            color: var(--text-primary);
            letter-spacing: .01em;
        }

        .player-card .player-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
            min-height: 44px;
        }

        .attr-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }

        .attr-label {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-secondary);
            min-width: 38px;
            letter-spacing: .03em;
        }

        .attr-bar {
            flex: 1;
            height: 6px;
            border-radius: 3px;
            background: rgba(255,255,255,.05);
            overflow: hidden;
        }

        .attr-bar-fill {
            height: 100%;
            border-radius: 3px;
            transition: width .6s ease;
        }

        .attr-fill-red {
            background: linear-gradient(90deg, var(--accent-primary), #FF6B6B);
        }

        .attr-fill-cyan {
            background: linear-gradient(90deg, var(--accent-secondary), #7DECFF);
        }

        .attr-fill-green {
            background: linear-gradient(90deg, var(--success), #7BEBA6);
        }

        .attr-fill-yellow {
            background: linear-gradient(90deg, var(--warning), #FFD166);
        }

        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 1rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--line);
            font-size: 12px;
            color: var(--text-secondary);
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-meta i {
            font-size: 11px;
            color: var(--accent-secondary);
        }

        /* ============ FEATURED PLAYER ============ */
        .featured-player {
            background: var(--bg-surface-2);
            border: 1px solid rgba(0,229,255,.15);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .featured-player:hover {
            border-color: rgba(0,229,255,.35);
            box-shadow: var(--shadow-lg);
        }

        .featured-player .featured-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .featured-player .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-player .featured-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,14,20,.2) 0%, rgba(11,14,20,.75) 100%);
        }

        .featured-player .featured-body {
            padding: 2rem;
        }

        .featured-player .featured-title {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 0.5rem;
        }

        .featured-player h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0;
        }

        .featured-player .featured-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-top: 0.75rem;
            max-width: 700px;
        }

        .featured-stats {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .featured-stat {
            text-align: center;
            padding: 1rem 0.5rem;
            background: rgba(255,255,255,.03);
            border: 1px solid var(--line);
            border-radius: 8px;
        }

        .featured-stat .stat-num {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--accent-secondary);
            line-height: 1.2;
        }

        .featured-stat .stat-label {
            font-size: 11px;
            color: var(--text-secondary);
            letter-spacing: .05em;
            margin-top: 4px;
        }

        /* ============ RANKING BARS ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .ranking-item:hover {
            border-color: rgba(0,229,255,.3);
            background: var(--bg-surface-2);
        }

        .ranking-pos {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-secondary);
            min-width: 34px;
            text-align: center;
            line-height: 1;
        }

        .ranking-pos.top1 {
            color: var(--warning);
            text-shadow: 0 0 12px rgba(255,176,32,.4);
        }

        .ranking-pos.top2 {
            color: var(--accent-secondary);
            text-shadow: 0 0 12px rgba(0,229,255,.35);
        }

        .ranking-pos.top3 {
            color: var(--accent-primary);
            text-shadow: 0 0 12px rgba(255,61,61,.35);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .ranking-name .badge-tag {
            font-size: 10px;
            padding: 2px 8px;
        }

        .ranking-bar-track {
            height: 6px;
            border-radius: 3px;
            background: rgba(255,255,255,.05);
            overflow: hidden;
        }

        .ranking-bar-fill {
            height: 100%;
            border-radius: 3px;
            transition: width .6s ease;
        }

        .ranking-value {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-secondary);
            min-width: 50px;
            text-align: right;
            line-height: 1;
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-cta {
            background: linear-gradient(135deg, rgba(23,32,43,.95) 0%, rgba(11,14,20,.95) 100%);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-sm);
        }

        .subscribe-cta h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .subscribe-cta p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 1.5rem;
            max-width: 520px;
        }

        .subscribe-form .input-group {
            max-width: 480px;
        }

        .subscribe-form .form-control {
            background-color: var(--bg-surface-2);
            border: 1px solid var(--line);
            color: var(--text-primary);
            border-radius: 8px 0 0 8px;
            padding: 10px 16px;
            font-size: 14px;
            box-shadow: none;
        }

        .subscribe-form .form-control:focus {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 0 2px rgba(0,229,255,.12);
            background-color: var(--bg-surface-2);
        }

        .subscribe-form .btn-subscribe {
            background: linear-gradient(135deg, var(--accent-primary) 0%, #D32F2F 100%);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            border: none;
            border-radius: 0 8px 8px 0;
            padding: 10px 20px;
            letter-spacing: .03em;
            transition: var(--transition);
        }

        .subscribe-form .btn-subscribe:hover {
            filter: brightness(1.1);
            border-color: rgba(0,229,255,.5);
            box-shadow: 0 0 16px rgba(255,61,61,.25);
        }

        .form-success {
            color: var(--success);
            font-size: 13px;
            margin-top: 0.5rem;
            display: none;
            align-items: center;
            gap: 6px;
        }

        .form-success.show {
            display: flex;
        }

        /* ============ TOPIC TAGS ============ */
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: 24px;
            transition: var(--transition);
        }

        .topic-tag:hover {
            color: var(--accent-secondary);
            border-color: rgba(0,229,255,.35);
            background: rgba(0,229,255,.05);
        }

        .topic-tag i {
            font-size: 12px;
            opacity: .7;
        }

        /* ============ FAQ ============ */
        .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .accordion-item:hover {
            border-color: rgba(255,255,255,.14);
        }

        .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 1.1rem 1.25rem;
            border-radius: var(--radius-sm) !important;
            position: relative;
            transition: var(--transition);
        }

        .accordion-button::after {
            content: '\f078';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            background: none;
            width: auto;
            height: auto;
            color: var(--accent-secondary);
            font-size: 13px;
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent-secondary);
        }

        .accordion-button:not(.collapsed) {
            background: var(--bg-surface-2);
            color: var(--text-primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(0,229,255,.4);
            outline-offset: -2px;
        }

        .accordion-body {
            background: var(--bg-surface-2);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
            padding: 1.25rem;
            border-top: 1px solid var(--line);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--line);
            padding: 4rem 0 2rem;
            margin-top: 3rem;
        }

        .footer-brand {
            margin-bottom: 1rem;
        }

        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
        }

        .footer-brand-desc {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 300px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: .02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--line);
        }

        .footer-copy {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .footer-meta {
            color: var(--text-secondary);
            font-size: 13px;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1199.98px) {
            .player-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
            .featured-stats {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .navbar-nav {
                gap: 0;
                margin-left: 0;
            }
            .navbar-nav .nav-link {
                padding: 8px 12px;
                font-size: 14px;
            }
            .player-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .page-head h1 {
                font-size: 30px;
            }
            .filter-toolbar .form-select {
                min-width: 120px;
            }
            .step-text {
                display: none;
            }
            .step-item {
                padding: 4px 8px;
            }
            .step-separator {
                margin: 0 8px;
                min-width: 12px;
            }
        }

        @media (max-width: 767.98px) {
            .section-pad {
                padding: 3.5rem 0;
            }
            .section-pad-sm {
                padding: 2.5rem 0;
            }
            .player-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .page-head h1 {
                font-size: 26px;
            }
            .featured-player .featured-body {
                padding: 1.5rem;
            }
            .featured-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .subscribe-cta {
                padding: 1.75rem;
            }
            .filter-toolbar .d-flex {
                flex-direction: column;
                gap: 12px;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 479.98px) {
            .player-grid {
                grid-template-columns: 1fr;
            }
            .featured-stats {
                grid-template-columns: 1fr 1fr;
            }
            .container,
            .container-wide {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-head h1 {
                font-size: 22px;
            }
            .page-head .lead {
                font-size: 14px;
            }
            .navbar-brand {
                font-size: 18px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .navbar-nav .nav-link {
                font-size: 13px;
                padding: 6px 10px;
            }
            .subscribe-cta h2 {
                font-size: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255,255,255,.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0,0,0,.3);
            --shadow-md: 0 12px 30px rgba(0,0,0,.45);
            --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }
        :root {
            --bg-primary: #0B0E14;
            --bg-surface: #111720;
            --bg-surface-2: #17202B;
            --text-primary: #F4F6FB;
            --text-secondary: #AAB6C5;
            --accent-primary: #FF3D3D;
            --accent-secondary: #00E5FF;
            --success: #2ED573;
            --warning: #FFB020;
            --line: rgba(255,255,255,.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 16px rgba(0,0,0,.3);
            --shadow-md: 0 12px 30px rgba(0,0,0,.45);
            --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
            --font-body: MiSans, HarmonyOS Sans SC, PingFang SC, Microsoft YaHei, sans-serif;
            --font-display: Rajdhani, Barlow Condensed, Orbitron, Segoe UI, sans-serif;
            --transition: all .3s ease;
            --header-height: 68px;
            --step-height: 48px;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + var(--step-height) + 10px);
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(255,61,61,.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(0,229,255,.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(255,61,61,.03) 0%, transparent 60%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #55f0ff;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .container-wide {
            max-width: 1320px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }
        .section-pad {
            padding: 5rem 0;
        }
        .section-pad-sm {
            padding: 3.5rem 0;
        }
        .text-glow {
            text-shadow: 0 0 24px rgba(0,229,255,.35), 0 0 60px rgba(0,229,255,.12);
        }
        .text-glow-red {
            text-shadow: 0 0 24px rgba(255,61,61,.35), 0 0 60px rgba(255,61,61,.12);
        }
        .accent-text-2 {
            color: var(--accent-secondary);
        }
        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            padding: 5px 14px;
            border: 1px solid rgba(0,229,255,.35);
            border-radius: 20px;
            margin-bottom: 1rem;
            background: rgba(0,229,255,.05);
        }
        .section-label-red {
            color: var(--accent-primary);
            border-color: rgba(255,61,61,.35);
            background: rgba(255,61,61,.05);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11,14,20,.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }
        .navbar {
            padding: 0 0;
            min-height: var(--header-height);
        }
        .navbar .container {
            min-height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-body);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: .02em;
            padding: 0;
            margin: 0;
            transition: var(--transition);
        }
        .navbar-brand:hover {
            color: var(--accent-secondary);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #B71C1C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0;
            box-shadow: 0 4px 16px rgba(255,61,61,.3);
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 2px;
            margin-left: 1.5rem;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            letter-spacing: .02em;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.05);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.08);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-secondary);
            box-shadow: 0 0 12px rgba(0,229,255,.5);
        }
        .navbar-toggler {
            border: 1px solid var(--line);
            background: rgba(255,255,255,.04);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(170,182,197,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Step progress */
        .step-progress {
            background: rgba(17,23,32,.9);
            border-top: 1px solid var(--line);
            min-height: var(--step-height);
            display: flex;
            align-items: center;
        }
        .step-progress .container {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            min-height: var(--step-height);
        }
        .step-progress .container::-webkit-scrollbar {
            display: none;
        }
        .step-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 10px;
            border-radius: 20px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .step-item:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.05);
        }
        .step-item.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.07);
        }
        .step-num {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(255,255,255,.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-size: 12px;
            font-weight: 700;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .step-item.active .step-num {
            background: var(--accent-secondary);
            color: #0B0E14;
            box-shadow: 0 0 14px rgba(0,229,255,.4);
        }
        .step-separator {
            display: inline-block;
            width: 1px;
            height: 16px;
            background: var(--line);
            flex-shrink: 0;
        }

        /* Offcanvas */
        .offcanvas {
            background: var(--bg-surface);
            border-left: 1px solid var(--line);
        }
        .offcanvas-header {
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.25rem;
        }
        .offcanvas-title {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 18px;
        }
        .offcanvas-body {
            padding: 0.5rem 0;
        }
        .offcanvas-body .navbar-nav {
            margin: 0;
            padding: 0;
        }
        .offcanvas-body .nav-link {
            display: block;
            padding: 14px 1.5rem;
            border-bottom: 1px solid var(--line);
            color: var(--text-secondary);
            border-radius: 0;
        }
        .offcanvas-body .nav-link:hover {
            background: rgba(255,255,255,.04);
            color: var(--text-primary);
        }
        .offcanvas-body .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0,229,255,.06);
            border-left: 3px solid var(--accent-secondary);
        }

        /* ============ PAGE HEADER ============ */
        .page-header {
            background: rgba(17,23,32,.7);
            border-bottom: 1px solid var(--line);
            padding: 2rem 0 1.5rem;
        }
        .breadcrumb {
            margin-bottom: 0.75rem;
            --bs-breadcrumb-divider-color: var(--text-secondary);
        }
        .breadcrumb-item a {
            color: var(--text-secondary);
            font-size: 13px;
        }
        .breadcrumb-item a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-item.active {
            color: var(--accent-secondary);
            font-size: 13px;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: '›';
            color: var(--text-secondary);
        }
        .page-header h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .page-header .lead {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 0;
        }

        /* ============ FILTER BAR ============ */
        .filter-toolbar {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1rem 1.25rem;
            margin-bottom: 2rem;
        }
        .filter-toolbar .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: .05em;
            margin-bottom: 0.35rem;
        }
        .filter-chip-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-chip {
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--line);
            background: transparent;
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: rgba(0,229,255,.5);
            color: var(--text-primary);
            background: rgba(0,229,255,.05);
        }
        .filter-chip.active {
            border-color: var(--accent-secondary);
            background: rgba(0,229,255,.12);
            color: var(--accent-secondary);
            font-weight: 600;
        }

        /* ============ COMPARISON CARDS ============ */
        .gear-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.25rem;
        }
        .gear-card {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .gear-card:hover {
            border-color: rgba(0,229,255,.45);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .gear-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-surface-2);
        }
        .gear-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .gear-card:hover .gear-card-img img {
            transform: scale(1.04);
        }
        .gear-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11,14,20,.65) 100%);
            pointer-events: none;
        }
        .gear-score-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            z-index: 2;
            background: rgba(11,14,20,.85);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: 8px;
            padding: 4px 10px;
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--warning);
            letter-spacing: .02em;
            backdrop-filter: blur(6px);
        }
        .gear-card-body {
            padding: 1.1rem 1.2rem 1.25rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .gear-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
            line-height: 1.5;
        }
        .gear-card-model {
            font-family: var(--font-display);
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: .05em;
            margin-bottom: 0.6rem;
        }
        .gear-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0.85rem;
            flex: 1;
        }
        .gear-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 0.85rem;
        }
        .gear-tag {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 14px;
            border: 1px solid rgba(0,229,255,.25);
            color: var(--accent-secondary);
            background: rgba(0,229,255,.06);
            white-space: nowrap;
        }
        .gear-tag.warning-tag {
            border-color: rgba(255,176,32,.3);
            color: var(--warning);
            background: rgba(255,176,32,.06);
        }
        .gear-card-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-secondary);
            border-top: 1px solid var(--line);
            padding-top: 0.75rem;
        }
        .gear-card-bottom .reading-time {
            color: var(--text-secondary);
        }

        /* ============ FEATURED ============ */
        .featured-gear {
            background: var(--bg-surface);
            border: 1px solid rgba(0,229,255,.25);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .featured-gear::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-secondary), transparent);
        }
        .featured-gear:hover {
            border-color: rgba(0,229,255,.55);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .featured-gear .featured-label {
            font-family: var(--font-display);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--warning);
        }
        .featured-gear h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .featured-gear p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .featured-gear .featured-thumb {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
        }

        /* ============ RATING BARS ============ */
        .rating-item {
            margin-bottom: 1.25rem;
        }
        .rating-item .rating-label {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .rating-item .rating-value {
            font-family: var(--font-display);
            font-weight: 700;
            color: var(--warning);
        }
        .progress {
            background: rgba(255,255,255,.06);
            border-radius: 8px;
            height: 10px;
            overflow: hidden;
        }
        .progress-bar {
            background: linear-gradient(90deg, var(--accent-secondary), var(--success));
            border-radius: 8px;
            transition: width 1s ease;
        }
        .progress-bar.red-bar {
            background: linear-gradient(90deg, var(--accent-primary), var(--warning));
        }
        .progress-bar.purple-bar {
            background: linear-gradient(90deg, var(--warning), var(--accent-primary));
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-cta {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 2.25rem;
            position: relative;
            overflow: hidden;
        }
        .subscribe-cta::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,255,.07) 0%, transparent 70%);
            pointer-events: none;
        }
        .subscribe-cta h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .subscribe-cta p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 1.25rem;
        }
        .subscribe-form .form-control {
            background: var(--bg-primary);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 12px 16px;
            font-size: 15px;
            transition: var(--transition);
        }
        .subscribe-form .form-control::placeholder {
            color: rgba(170,182,197,.6);
        }
        .subscribe-form .form-control:focus {
            border-color: var(--accent-secondary);
            box-shadow: none;
            background: var(--bg-primary);
        }
        .btn-gear-primary {
            background: var(--accent-primary);
            color: #0B0E14;
            font-weight: 700;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 15px;
            transition: var(--transition);
        }
        .btn-gear-primary:hover {
            background: #ff5a5a;
            color: #0B0E14;
            box-shadow: 0 0 20px rgba(255,61,61,.35);
        }
        .subscribe-success {
            display: none;
            color: var(--success);
            font-size: 14px;
            margin-top: 10px;
            font-weight: 500;
        }

        /* ============ TAG WALL ============ */
        .tag-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-wall .topic-tag {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1px solid var(--line);
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
            background: transparent;
            cursor: default;
        }
        .tag-wall .topic-tag:hover {
            border-color: rgba(0,229,255,.4);
            color: var(--accent-secondary);
            background: rgba(0,229,255,.05);
        }

        /* ============ FAQ ============ */
        .faq-accordion .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.85rem;
            overflow: hidden;
            border-left: 3px solid var(--accent-primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 16px;
            padding: 1.1rem 1.25rem;
            border: none;
            box-shadow: none;
            position: relative;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255,61,61,.05);
            color: var(--text-primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            content: '+';
            background-image: none;
            font-size: 24px;
            font-weight: 400;
            color: var(--accent-secondary);
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            transform: none;
            transition: transform .3s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-secondary);
            outline-offset: -3px;
        }
        .faq-accordion .accordion-body {
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
            padding: 1rem 1.25rem 1.25rem;
            border-top: 1px solid var(--line);
        }

        /* ============ SEE MORE LINK ============ */
        .see-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-secondary);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }
        .see-more-link i {
            transition: transform .3s ease;
        }
        .see-more-link:hover {
            color: #55f0ff;
        }
        .see-more-link:hover i {
            transform: translateX(6px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--line);
            padding: 3rem 0 1.5rem;
            margin-top: 5rem;
        }
        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: .03em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-secondary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
            padding-top: 1.5rem;
            margin-top: 2rem;
            border-top: 1px solid var(--line);
            font-size: 13px;
            color: var(--text-secondary);
        }
        .footer-copy {
            color: var(--text-secondary);
        }
        .footer-meta {
            color: rgba(170,182,197,.7);
        }

        /* ============ SECTION SPECIFIC ============ */
        .section-title {
            font-size: 28px;
            line-height: 1.4;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 2rem;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .gear-card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
            .section-pad {
                padding: 4rem 0;
            }
            .section-pad-sm {
                padding: 3rem 0;
            }
        }
        @media (max-width: 768px) {
            .gear-card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .featured-gear {
                padding: 1.5rem;
            }
            .subscribe-cta {
                padding: 1.75rem;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .gear-card-grid {
                grid-template-columns: 1fr;
            }
            .gear-card-title {
                font-size: 16px;
            }
            .filter-toolbar {
                padding: 0.85rem 1rem;
            }
            .page-header {
                padding: 1.5rem 0 1.25rem;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .navbar-brand {
                font-size: 19px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .step-text {
                display: none;
            }
            .step-item {
                padding: 6px;
            }
            .step-num {
                width: 20px;
                height: 20px;
                font-size: 11px;
            }
            .step-separator {
                height: 14px;
            }
            .gear-score-badge {
                font-size: 16px;
                padding: 3px 8px;
                top: 8px;
                right: 8px;
            }
            .featured-gear h3 {
                font-size: 18px;
            }
            .subscribe-cta h3 {
                font-size: 19px;
            }
            .section-pad {
                padding: 2.5rem 0;
            }
            .section-pad-sm {
                padding: 2.25rem 0;
            }
        }
        @media (max-width: 360px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .navbar-brand {
                font-size: 17px;
                gap: 7px;
            }
            .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
            .gear-card-grid {
                grid-template-columns: 1fr;
            }
            .filter-chip {
                font-size: 12px;
                padding: 5px 12px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}