/* roulang page: index */
:root {
            --brand-orange: #FF5E3A;
            --brand-violet: #7A4DFF;
            --brand-gradient: linear-gradient(135deg, #FF5E3A 0%, #7A4DFF 100%);
            --gold: #FFC53D;
            --success: #22C55E;
            --danger: #EF4444;
            --bg-dark: #12101E;
            --bg-card-dark: #1C1726;
            --border-dark: rgba(255, 255, 255, 0.08);
            --bg-light: #F8F6F3;
            --bg-card-light: #FFFFFF;
            --border-light: #ECE9E4;
            --text-dark-heading: #FFFFFF;
            --text-dark-body: rgba(255, 255, 255, 0.72);
            --text-light-heading: #1B1626;
            --text-light-body: #4A4555;
            --radius-large: 24px;
            --radius-card: 16px;
            --radius-button: 12px;
            --shadow-card: 0 8px 30px rgba(18, 16, 30, 0.06);
            --shadow-card-hover: 0 20px 50px -20px rgba(122, 77, 255, 0.35);
            --shadow-dark-card: 0 20px 60px rgba(0, 0, 0, 0.35);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 120px;
        }

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            background-color: var(--bg-light);
            color: var(--text-light-body);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .brand-gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .brand-gradient-bg {
            background: var(--brand-gradient);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 16px;
            line-height: 1.2;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.3);
        }

        .btn-primary:hover {
            box-shadow: 0 12px 30px rgba(122, 77, 255, 0.45);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 16px rgba(122, 77, 255, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--text-light-heading);
            border-color: #D1CCE0;
        }

        .btn-outline-dark:hover {
            border-color: var(--brand-violet);
            color: var(--brand-violet);
            background: rgba(122, 77, 255, 0.04);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
        }

        .badge-gold {
            background: rgba(255, 197, 61, 0.15);
            color: var(--gold);
        }

        .badge-success {
            background: rgba(34, 197, 94, 0.15);
            color: var(--success);
        }

        .badge-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: rgba(255, 255, 255, 0.85);
        }

        .section {
            padding: 100px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-light-heading);
        }

        .section-sub {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-light-body);
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 16, 30, 0.9);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
            background: rgba(18, 16, 30, 0.95);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 4px 16px rgba(122, 77, 255, 0.4);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: var(--brand-gradient);
            color: #fff;
            padding: 8px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(122, 77, 255, 0.35);
            transition: all 0.3s ease;
        }

        .btn-login:hover {
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.5);
            transform: translateY(-1px);
        }

        .btn-register {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            padding: 8px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-register:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        .header-nav-wrap {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            overflow-x: auto;
            scrollbar-width: none;
        }

        .header-nav-wrap::-webkit-scrollbar {
            display: none;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 0;
            min-width: max-content;
        }

        .header-nav a {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .header-nav a.active {
            color: #fff;
            background: var(--brand-gradient);
            font-weight: 600;
        }

        /* Mobile header */
        .mobile-header {
            display: none;
        }

        @media (max-width: 768px) {
            .desktop-header {
                display: none;
            }
            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 10px 16px;
            }
            .mobile-header .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .mobile-header .logo-text {
                font-size: 18px;
            }
            .mobile-login-btn {
                width: 36px;
                height: 36px;
                border-radius: 50%;
                background: var(--brand-gradient);
                color: #fff;
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 16px;
                box-shadow: 0 4px 12px rgba(122, 77, 255, 0.4);
            }
            .mobile-nav-wrap {
                overflow-x: auto;
                padding: 0 16px 10px;
                scrollbar-width: none;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
            }
            .mobile-nav-wrap::-webkit-scrollbar {
                display: none;
            }
            .mobile-nav {
                display: flex;
                gap: 4px;
                min-width: max-content;
                padding-top: 8px;
            }
            .mobile-nav a {
                padding: 5px 14px;
                border-radius: 999px;
                font-size: 14px;
                color: rgba(255, 255, 255, 0.7);
                white-space: nowrap;
            }
            .mobile-nav a.active {
                background: var(--brand-gradient);
                color: #fff;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }

        /* Hero */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(18, 16, 30, 0.92), rgba(28, 23, 38, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 160px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 94, 58, 0.3), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(122, 77, 255, 0.3), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-title {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 36px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 32px;
        }

        .hero-stat-item {
            text-align: left;
        }

        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.1;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        .hero-card {
            background: rgba(28, 23, 38, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-large);
            padding: 36px;
            backdrop-filter: blur(12px);
            position: relative;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
        }

        .hero-card-badge {
            position: absolute;
            top: -16px;
            right: 24px;
            background: linear-gradient(135deg, var(--gold), #FFB300);
            color: #1B1626;
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 197, 61, 0.4);
        }

        .hero-card-badge-bottom {
            position: absolute;
            bottom: -16px;
            left: 24px;
            background: var(--bg-card-dark);
            border: 1px solid var(--border-dark);
            color: rgba(255, 255, 255, 0.85);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }

        .hero-card-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 24px;
            text-align: center;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-button);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .form-group input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        .form-group input:focus {
            border-color: var(--brand-violet);
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding-top: 140px;
                padding-bottom: 60px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .hero-card {
                padding: 28px 20px;
            }
        }

        /* Features */
        .features-section {
            background: var(--bg-light);
            position: relative;
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
            margin-top: 48px;
        }

        .feature-card-large {
            background: var(--bg-card-dark);
            border-radius: var(--radius-large);
            padding: 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark-card);
        }

        .feature-card-large::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255, 94, 58, 0.4), transparent 70%);
            border-radius: 50%;
        }

        .feature-card-large::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 20%;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(122, 77, 255, 0.3), transparent 70%);
            border-radius: 50%;
        }

        .feature-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            padding: 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .feature-card-wide {
            grid-column: 1 / -1;
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            padding: 36px 40px;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 32px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            margin-top: 24px;
        }

        .feature-card-wide:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .feature-icon-orange {
            background: rgba(255, 94, 58, 0.12);
            color: var(--brand-orange);
        }

        .feature-icon-violet {
            background: rgba(122, 77, 255, 0.12);
            color: var(--brand-violet);
        }

        .feature-icon-gold {
            background: rgba(255, 197, 61, 0.12);
            color: var(--gold);
        }

        .feature-icon-success {
            background: rgba(34, 197, 94, 0.12);
            color: var(--success);
        }

        .feature-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-light-heading);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .feature-title-light {
            color: #fff;
        }

        .feature-desc {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-light-body);
        }

        .feature-desc-light {
            color: rgba(255, 255, 255, 0.75);
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card-wide {
                flex-direction: column;
                text-align: center;
                padding: 32px 24px;
            }
        }

        /* Demo Section */
        .demo-section {
            background: var(--bg-card-dark);
            position: relative;
            overflow: hidden;
        }

        .demo-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(122, 77, 255, 0.15), transparent 70%);
            pointer-events: none;
        }

        .demo-grid {
            display: grid;
            grid-template-columns: 1fr 0.8fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .demo-steps {
            display: flex;
            flex-direction: column;
            gap: 32px;
            position: relative;
        }

        .demo-steps::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 40px;
            bottom: 40px;
            width: 2px;
            background: var(--brand-gradient);
            opacity: 0.4;
        }

        .demo-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            position: relative;
        }

        .demo-step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            border: 2px solid var(--brand-violet);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            background: var(--bg-card-dark);
            flex-shrink: 0;
            box-shadow: 0 0 0 6px rgba(122, 77, 255, 0.15);
            z-index: 1;
        }

        .demo-step-content {
            padding-top: 4px;
        }

        .demo-step-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .demo-step-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }

        .demo-image-card {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
        }

        .demo-image-card img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .demo-image-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: rgba(18, 16, 30, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        @media (max-width: 1024px) {
            .demo-grid {
                grid-template-columns: 1fr;
            }
            .demo-steps::before {
                left: 27px;
            }
        }

        /* Proof Section */
        .proof-section {
            background: var(--bg-light);
            position: relative;
        }

        .proof-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 48px;
            gap: 40px;
        }

        .proof-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }

        .proof-stat-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            padding: 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .proof-stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .proof-stat-number {
            font-size: 44px;
            font-weight: 900;
            color: var(--brand-orange);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .proof-stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light-heading);
        }

        .proof-stat-label {
            font-size: 14px;
            color: var(--text-light-body);
            margin-top: 8px;
        }

        .proof-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 48px;
        }

        .proof-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--bg-card-light);
            border-radius: 16px;
            border: 1px solid var(--border-light);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light-heading);
        }

        .proof-item i {
            color: var(--success);
            font-size: 18px;
        }

        @media (max-width: 1024px) {
            .proof-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .proof-stats-grid {
                grid-template-columns: 1fr;
            }
            .proof-list {
                grid-template-columns: 1fr;
            }
            .proof-header {
                flex-direction: column;
                gap: 16px;
            }
        }

        /* News Section */
        .news-section {
            background: var(--bg-light);
            padding: 100px 0;
        }

        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }

        .news-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-violet);
            font-weight: 600;
            font-size: 15px;
            transition: gap 0.3s ease;
        }

        .news-more-link:hover {
            gap: 10px;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .news-card-large {
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .news-card-large:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .news-card-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }

        .news-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .news-card-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light-heading);
            line-height: 1.4;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-desc {
            font-size: 14px;
            color: var(--text-light-body);
            line-height: 1.7;
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }

        .news-card-tag {
            display: inline-block;
            background: rgba(122, 77, 255, 0.1);
            color: var(--brand-violet);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        .news-card-date {
            font-size: 13px;
            color: rgba(74, 69, 85, 0.6);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            border: 1px solid var(--border-light);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }

        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px;
            border-radius: 16px;
            background: var(--bg-light);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .news-list-item:hover {
            background: rgba(122, 77, 255, 0.06);
            transform: translateX(4px);
        }

        .news-list-cover {
            width: 96px;
            height: 72px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-list-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-body {
            flex: 1;
            min-width: 0;
        }

        .news-list-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light-heading);
            line-height: 1.5;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-list-desc {
            font-size: 13px;
            color: var(--text-light-body);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-list-meta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .news-list-tag {
            font-size: 12px;
            color: var(--brand-violet);
            background: rgba(122, 77, 255, 0.08);
            border-radius: 999px;
            padding: 2px 10px;
            font-weight: 600;
        }

        .news-list-date {
            font-size: 12px;
            color: rgba(74, 69, 85, 0.6);
        }

        .news-empty {
            grid-column: 1 / -1;
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            border: 1px dashed var(--border-light);
            padding: 60px 40px;
            text-align: center;
            color: var(--text-light-body);
        }

        .news-empty i {
            font-size: 48px;
            color: rgba(74, 69, 85, 0.3);
            margin-bottom: 16px;
            display: block;
        }

        .news-empty p {
            font-size: 16px;
        }

        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-list-item {
                padding: 12px;
            }
        }

        @media (max-width: 640px) {
            .news-list-cover {
                width: 72px;
                height: 56px;
            }
            .news-card-body {
                padding: 20px;
            }
            .news-section {
                padding: 60px 0;
            }
        }

        /* Pricing Section */
        .pricing-section {
            background: var(--bg-card-dark);
            position: relative;
            overflow: hidden;
        }

        .pricing-section::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 94, 58, 0.15), transparent 70%);
            border-radius: 50%;
        }

        .pricing-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 48px;
            gap: 40px;
            position: relative;
            z-index: 1;
        }

        .pricing-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 197, 61, 0.12);
            border: 1px solid rgba(255, 197, 61, 0.3);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
            margin-bottom: 20px;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
            position: relative;
            z-index: 1;
        }

        .pricing-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-large);
            padding: 36px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .pricing-card.featured {
            background: var(--brand-gradient);
            color: #fff;
            transform: translateY(-20px);
            box-shadow: 0 30px 60px rgba(122, 77, 255, 0.4);
            border: none;
        }

        .pricing-card.featured:hover {
            transform: translateY(-24px);
            box-shadow: 0 40px 70px rgba(122, 77, 255, 0.5);
        }

        .pricing-card.featured .pricing-desc {
            color: rgba(255, 255, 255, 0.85);
        }

        .pricing-card.featured .pricing-link {
            background: #fff;
            color: var(--brand-violet);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .pricing-featured-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--gold);
            color: #1B1626;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(255, 197, 61, 0.4);
        }

        .pricing-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .pricing-price {
            font-size: 40px;
            font-weight: 900;
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .pricing-price span {
            font-size: 16px;
            font-weight: 500;
            opacity: 0.7;
        }

        .pricing-desc {
            font-size: 14px;
            color: var(--text-light-body);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .pricing-divider {
            border: none;
            border-top: 1px solid var(--border-light);
            margin: 0 0 24px;
        }

        .pricing-card.featured .pricing-divider {
            border-top-color: rgba(255, 255, 255, 0.2);
        }

        .pricing-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
            flex: 1;
        }

        .pricing-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            line-height: 1.5;
        }

        .pricing-list li i {
            color: var(--success);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .pricing-card.featured .pricing-list li i {
            color: #fff;
        }

        .pricing-btn {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 24px;
            border-radius: var(--radius-button);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
            border: 1px solid var(--border-light);
        }

        .pricing-btn-outline {
            color: var(--text-light-heading);
            background: transparent;
        }

        .pricing-btn-outline:hover {
            border-color: var(--brand-violet);
            color: var(--brand-violet);
            background: rgba(122, 77, 255, 0.05);
        }

        .pricing-card.featured .pricing-btn {
            background: #fff;
            color: var(--brand-violet);
            border-color: #fff;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .pricing-card.featured .pricing-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
        }

        @media (max-width: 1024px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .pricing-card.featured {
                transform: none;
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
            .pricing-header {
                flex-direction: column;
                gap: 16px;
            }
        }

        /* FAQ Section */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 60px;
            margin-top: 48px;
        }

        .faq-left {
            position: sticky;
            top: 160px;
            height: fit-content;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card-light);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 0;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .faq-item.active {
            border-color: rgba(122, 77, 255, 0.5);
            box-shadow: 0 8px 30px rgba(122, 77, 255, 0.08);
            background: linear-gradient(135deg, #FFFFFF, rgba(122, 77, 255, 0.03));
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light-heading);
            transition: color 0.3s ease;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
        }

        .faq-q-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(122, 77, 255, 0.12);
            color: var(--brand-violet);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-chevron {
            margin-left: auto;
            transition: transform 0.3s ease;
            color: rgba(74, 69, 85, 0.5);
        }

        .faq-item.active .faq-chevron {
            transform: rotate(180deg);
            color: var(--brand-violet);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 24px 68px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-light-body);
        }

        .faq-a-icon {
            display: inline-block;
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: var(--brand-gradient);
            color: #fff;
            text-align: center;
            line-height: 24px;
            font-size: 12px;
            font-weight: 700;
            margin-right: 8px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        @media (max-width: 1024px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .faq-left {
                position: static;
            }
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-light);
            padding: 60px 0 100px;
        }

        .cta-card {
            background: var(--brand-gradient);
            border-radius: 32px;
            padding: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(122, 77, 255, 0.3);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border: 3px solid rgba(255, 255, 255, 0.15);
            border-radius: 50%;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 30%;
            width: 120px;
            height: 120px;
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .cta-title {
            font-size: 32px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            background: #fff;
            color: var(--brand-violet);
            padding: 16px 36px;
            border-radius: var(--radius-button);
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
            white-space: nowrap;
        }

        .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
        }

        @media (max-width: 768px) {
            .cta-card {
                flex-direction: column;
                text-align: center;
                padding: 40px 24px;
            }
            .cta-title {
                font-size: 24px;
            }
        }

        /* Footer */
        .site-footer {
            background: #12101E;
            padding-top: 64px;
            border-top: 2px solid var(--brand-gradient);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .footer-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .footer-column-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--brand-orange);
            transform: translateX(4px);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-contact-item i {
            color: var(--brand-orange);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Floating CTA */
        .floating-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 999;
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gradient);
            color: #fff;
            padding: 14px 24px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 12px 32px rgba(122, 77, 255, 0.4);
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }

        .floating-cta.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .floating-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(122, 77, 255, 0.5);
        }

        .floating-cta .status-dot {
            width: 8px;
            height: 8px;
            background: var(--success);
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.3);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.7;
                transform: scale(0.9);
            }
        }

        @media (max-width: 640px) {
            .floating-cta {
                right: 16px;
                bottom: 16px;
                padding: 0;
                width: 48px;
                height: 48px;
                border-radius: 50%;
                justify-content: center;
            }
            .floating-cta span.floating-text {
                display: none;
            }
            .floating-cta .status-dot {
                position: absolute;
                top: 4px;
                right: 4px;
            }
        }

        .back-top {
            position: fixed;
            bottom: 90px;
            right: 30px;
            z-index: 998;
            width: 44px;
            height: 44px;
            background: var(--bg-card-dark);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: var(--shadow-dark-card);
            opacity: 0;
            transition: all 0.3s ease;
            border: 1px solid var(--border-dark);
        }

        .back-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-top:hover {
            background: var(--brand-gradient);
        }

        @media (max-width: 640px) {
            .back-top {
                right: 16px;
                bottom: 80px;
            }
        }

        /* Focus styles */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--brand-violet);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(122, 77, 255, 0.4);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --brand-orange: #FF5E3A;
            --brand-violet: #7A4DFF;
            --brand-gradient: linear-gradient(135deg, #FF5E3A 0%, #7A4DFF 100%);
            --gold: #FFC53D;
            --success: #22C55E;
            --danger: #EF4444;
            --bg-dark: #12101E;
            --bg-card-dark: #1C1726;
            --border-dark: rgba(255,255,255,0.08);
            --bg-light: #F8F6F3;
            --bg-card-light: #FFFFFF;
            --border-light: #ECE9E4;
            --text-title-dark: #FFFFFF;
            --text-body-dark: rgba(255,255,255,0.72);
            --text-title-light: #1B1626;
            --text-body-light: #4A4555;
            --radius-card: 16px;
            --radius-card-lg: 24px;
            --shadow-card: 0 8px 30px rgba(18,16,30,0.06);
            --shadow-hover: 0 20px 50px -20px rgba(122,77,255,0.35);
            --shadow-dark: 0 20px 60px rgba(0,0,0,0.35);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg-light);
            color: var(--text-body-light);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input, textarea, select {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Header */
        .site-header {
            background: rgba(18, 16, 30, 0.92);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(18, 16, 30, 0.98);
            box-shadow: 0 8px 40px rgba(0,0,0,0.4);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
        }
        .logo-area {
            display: flex;
            align-items: center;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--brand-gradient);
            border-radius: 12px;
            color: #fff;
            font-weight: 900;
            font-size: 20px;
            margin-right: 10px;
            box-shadow: 0 6px 20px rgba(122,77,255,0.4);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
        }
        .badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
        }
        .badge-gold {
            background: rgba(255, 197, 61, 0.15);
            color: #FFC53D;
            border: 1px solid rgba(255, 197, 61, 0.3);
            margin-left: 8px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 28px;
            background: var(--brand-gradient);
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(255, 94, 58, 0.3);
        }
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 94, 58, 0.45);
        }
        .btn-register {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 24px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.35);
            border-radius: 10px;
            font-weight: 500;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        .btn-register:hover {
            border-color: var(--brand-orange);
            color: var(--brand-orange);
        }
        .header-nav-wrap {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 0;
        }
        .header-nav {
            display: flex;
            gap: 4px;
            padding: 6px 0;
        }
        .header-nav a {
            position: relative;
            display: inline-block;
            padding: 8px 18px;
            color: rgba(255,255,255,0.65);
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .header-nav a:hover {
            color: #fff;
            background: rgba(255,255,255,0.06);
        }
        .header-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(255,94,58,0.18), rgba(122,77,255,0.18));
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }
        .mobile-header {
            display: none;
        }
        .mobile-nav-wrap {
            display: none;
        }
        /* Hero */
        .page-hero {
            position: relative;
            padding: 80px 0 0;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.4;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18,16,30,0.92) 0%, rgba(28,23,38,0.75) 50%, rgba(122,77,255,0.3) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            padding: 40px 24px 60px;
            text-align: center;
        }
        .page-hero .badge-cat {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(255,197,61,0.12);
            border: 1px solid rgba(255,197,61,0.3);
            color: #FFC53D;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 16px;
        }
        .page-hero p {
            color: rgba(255,255,255,0.72);
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }
        /* Category hero bar */
        .category-bar {
            position: relative;
            padding: 40px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .category-bar::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.25;
        }
        .category-bar::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(122,77,255,0.25) 0%, rgba(18,16,30,0.92) 60%);
        }
        .category-bar .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-bar-info {
            flex: 1;
            min-width: 280px;
        }
        .category-bar-info .cat-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(255,197,61,0.15);
            border: 1px solid rgba(255,197,61,0.3);
            color: #FFC53D;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .category-bar-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .category-bar-info p {
            color: rgba(255,255,255,0.7);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .category-bar-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .category-stat {
            text-align: center;
            padding: 16px 20px;
            background: rgba(0,0,0,0.3);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 16px;
            min-width: 100px;
        }
        .category-stat strong {
            display: block;
            font-size: 30px;
            font-weight: 800;
            color: #FFC53D;
            line-height: 1.2;
        }
        .category-stat span {
            font-size: 12px;
            color: rgba(255,255,255,0.6);
        }
        /* Timeline layout */
        .timeline-section {
            padding: 80px 0;
            background: var(--bg-light);
        }
        .timeline-grid {
            display: flex;
            gap: 60px;
            align-items: flex-start;
        }
        .timeline-col {
            width: 260px;
            flex-shrink: 0;
            position: sticky;
            top: 180px;
        }
        .timeline-list {
            position: relative;
            padding-left: 24px;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, #FF5E3A, #7A4DFF);
            border-radius: 2px;
            opacity: 0.4;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 28px 24px;
        }
        .timeline-marker {
            position: absolute;
            left: -24px;
            top: 4px;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50%;
            font-weight: 800;
            font-size: 18px;
            color: #7A4DFF;
            box-shadow: 0 0 0 4px rgba(122,77,255,0.12), 0 6px 16px rgba(18,16,30,0.08);
            z-index: 1;
        }
        .timeline-item.active .timeline-marker {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: 0 0 0 4px rgba(122,77,255,0.2), 0 8px 20px rgba(122,77,255,0.35);
        }
        .timeline-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: #1B1626;
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 14px;
            color: #4A4555;
            opacity: 0.8;
            line-height: 1.6;
        }
        .content-col {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .content-card {
            background: #fff;
            border-radius: var(--radius-card-lg);
            padding: 36px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .content-card-top {
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }
        .content-card-top .cover-wrap {
            width: 200px;
            height: 130px;
            border-radius: 14px;
            overflow: hidden;
            object-fit: cover;
            flex-shrink: 0;
        }
        .content-card-top .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card-top .cover-wrap:hover img {
            transform: scale(1.04);
        }
        .content-card-body {
            flex: 1;
        }
        .content-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: #1B1626;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .content-card-body p {
            font-size: 15px;
            line-height: 1.75;
            color: #4A4555;
            opacity: 0.85;
            margin-bottom: 12px;
        }
        .tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(122,77,255,0.08);
            color: #7A4DFF;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
        }
        .tag-orange {
            background: rgba(255,94,58,0.08);
            color: #FF5E3A;
        }
        .content-meta {
            display: flex;
            gap: 16px;
            font-size: 14px;
            color: #8A849C;
            margin-bottom: 14px;
        }
        .official-entry-card {
            background: var(--bg-dark);
            border-radius: var(--radius-card-lg);
            padding: 36px;
            position: relative;
            overflow: hidden;
            color: #fff;
            box-shadow: var(--shadow-dark);
        }
        .official-entry-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(122,77,255,0.3) 0%, transparent 70%);
        }
        .official-entry-card::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,94,58,0.25) 0%, transparent 70%);
        }
        .official-entry-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .official-entry-content h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .official-entry-content p {
            color: rgba(255,255,255,0.72);
            font-size: 15px;
        }
        .official-entry-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gradient);
            border: none;
            padding: 14px 36px;
            border-radius: 12px;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(255,94,58,0.3);
        }
        .official-entry-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(255,94,58,0.45);
        }
        /* Steps card */
        .steps-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .step-item {
            text-align: center;
            padding: 20px 12px;
        }
        .step-num {
            width: 40px;
            height: 40px;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid transparent;
            background: linear-gradient(white, white) padding-box, var(--brand-gradient) border-box;
            border-radius: 50%;
            font-size: 16px;
            font-weight: 800;
            color: #7A4DFF;
        }
        .step-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: #1B1626;
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 13px;
            color: #4A4555;
            opacity: 0.75;
        }
        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: #fff;
        }
        .faq-grid {
            display: flex;
            gap: 48px;
        }
        .faq-left {
            width: 340px;
            flex-shrink: 0;
        }
        .faq-left h2 {
            font-size: 28px;
            font-weight: 800;
            color: #1B1626;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .faq-left p {
            color: #4A4555;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .faq-list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
            background: #fff;
        }
        .faq-item.open {
            border-color: rgba(122,77,255,0.3);
            background: linear-gradient(135deg, rgba(122,77,255,0.03), rgba(255,94,58,0.03));
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: #1B1626;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-q-badge {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gradient);
            color: #fff;
            border-radius: 50%;
            font-size: 12px;
            font-weight: 700;
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: #4A4555;
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        .faq-toggle {
            margin-left: auto;
            background: none;
            border: none;
            color: #7A4DFF;
            font-size: 14px;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        /* CTA */
        .cta-section {
            padding: 0 0 80px;
            background: var(--bg-light);
        }
        .cta-card {
            background: var(--brand-gradient);
            border-radius: 24px;
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(122,77,255,0.3);
        }
        .cta-card::before,
        .cta-card::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            border: 2px solid rgba(255,255,255,0.15);
        }
        .cta-card::before {
            width: 120px;
            height: 120px;
            top: -30px;
            right: 60px;
        }
        .cta-card::after {
            width: 60px;
            height: 60px;
            bottom: -20px;
            left: 40px;
        }
        .cta-text {
            position: relative;
            z-index: 2;
        }
        .cta-text h3 {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .cta-text p {
            color: rgba(255,255,255,0.85);
            font-size: 15px;
        }
        .cta-btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: #7A4DFF;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(0,0,0,0.15);
            position: relative;
            z-index: 2;
        }
        .cta-btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.2);
        }
        /* Bottom nav */
        .bottom-nav {
            padding: 24px 0;
            background: var(--bg-light);
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
        }
        .back-top-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--bg-dark);
            color: #fff;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        .back-top-btn:hover {
            background: transparent;
            color: var(--text-title-light);
            border: 1px solid var(--border-light);
        }
        .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--brand-gradient);
            color: #fff;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        .back-home-btn:hover {
            box-shadow: 0 8px 24px rgba(255,94,58,0.4);
            transform: translateY(-2px);
        }
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--brand-gradient);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            margin-bottom: 14px;
        }
        .footer-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--brand-gradient);
            border-radius: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            margin-right: 8px;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.55);
            max-width: 300px;
        }
        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.3s ease;
        }
        .footer-links a:hover {
            color: #FF5E3A;
            padding-left: 4px;
        }
        .footer-links a i {
            font-size: 10px;
            color: rgba(255,255,255,0.3);
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255,255,255,0.6);
        }
        .footer-contact-item i {
            width: 16px;
            color: #7A4DFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }
        /* Floating CTA */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gradient);
            color: #fff;
            padding: 14px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 12px 32px rgba(255,94,58,0.4);
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .float-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(122,77,255,0.4);
        }
        .float-cta .online-dot {
            width: 8px;
            height: 8px;
            background: #22C55E;
            border-radius: 50%;
            display: inline-block;
            margin-right: 4px;
            box-shadow: 0 0 0 3px rgba(34,197,94,0.2);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .timeline-grid {
                gap: 32px;
            }
            .timeline-col {
                width: 220px;
            }
            .steps-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-grid {
                gap: 24px;
            }
            .faq-left {
                width: 280px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .desktop-header {
                display: none;
            }
            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 10px 16px;
            }
            .mobile-header .logo-text {
                font-size: 18px;
            }
            .mobile-login-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
                background: var(--brand-gradient);
                color: #fff;
                border-radius: 50%;
                font-size: 18px;
                font-weight: 700;
            }
            .mobile-nav-wrap {
                display: block;
                overflow-x: auto;
                border-top: 1px solid rgba(255,255,255,0.06);
                -webkit-overflow-scrolling: touch;
            }
            .mobile-nav-wrap::-webkit-scrollbar {
                height: 2px;
                background: rgba(255,255,255,0.05);
            }
            .mobile-nav-wrap::-webkit-scrollbar-thumb {
                background: rgba(255,255,255,0.15);
                border-radius: 2px;
            }
            .mobile-nav {
                display: flex;
                gap: 0;
                padding: 0 16px;
                white-space: nowrap;
                min-width: max-content;
            }
            .mobile-nav a {
                padding: 12px 14px;
                font-size: 14px;
                color: rgba(255,255,255,0.6);
                font-weight: 500;
            }
            .mobile-nav a.active {
                color: #FF5E3A;
                border-bottom: 2px solid var(--brand-gradient);
            }
            .page-hero {
                padding: 60px 0 0;
            }
            .page-hero .container {
                padding: 24px 16px 48px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .category-bar {
                padding: 32px 0 60px;
            }
            .category-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }
            .category-bar-stats {
                gap: 12px;
            }
            .category-stat {
                padding: 12px 14px;
                min-width: 80px;
            }
            .category-stat strong {
                font-size: 24px;
            }
            .timeline-section {
                padding: 48px 0;
            }
            .timeline-grid {
                flex-direction: column;
                gap: 32px;
            }
            .timeline-col {
                width: 100%;
                position: static;
                margin-bottom: 8px;
            }
            .timeline-list {
                display: flex;
                flex-wrap: wrap;
                gap: 16px;
                padding-left: 0;
            }
            .timeline-list::before {
                display: none;
            }
            .timeline-item {
                padding: 0;
                width: calc(50% - 8px);
            }
            .timeline-marker {
                position: static;
                margin-bottom: 8px;
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .timeline-item h4 {
                font-size: 15px;
            }
            .content-card {
                padding: 24px;
            }
            .content-card-top {
                flex-direction: column;
            }
            .content-card-top .cover-wrap {
                width: 100%;
                height: 180px;
            }
            .steps-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .official-entry-content {
                text-align: center;
                justify-content: center;
            }
            .faq-grid {
                flex-direction: column;
                gap: 24px;
            }
            .faq-left {
                width: 100%;
            }
            .cta-card {
                padding: 36px 24px;
                text-align: center;
                justify-content: center;
            }
            .cta-text h3 {
                font-size: 22px;
            }
            .cta-btn-light {
                padding: 12px 28px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .float-cta {
                padding: 12px 20px;
                font-size: 13px;
            }
            .float-cta .float-cta-text {
                display: none;
            }
        }
        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .category-bar-info h2 {
                font-size: 22px;
            }
            .steps-inner {
                grid-template-columns: 1fr 1fr;
            }
            .timeline-item {
                width: 100%;
                padding-left: 54px;
                position: relative;
            }
            .timeline-marker {
                position: absolute;
                left: 0;
                top: 0;
                margin: 0;
            }
            .timeline-list {
                display: block;
            }
        }
        /* Focus */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #7A4DFF;
            outline-offset: 2px;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --brand-orange: #FF5E3A;
            --brand-violet: #7A4DFF;
            --brand-gradient: linear-gradient(135deg, #FF5E3A 0%, #7A4DFF 100%);
            --gold: #FFC53D;
            --success: #22C55E;
            --danger: #EF4444;
            --bg-dark: #12101E;
            --bg-card-dark: #1C1726;
            --border-dark: rgba(255, 255, 255, 0.08);
            --bg-light: #F8F6F3;
            --bg-card-light: #FFFFFF;
            --border-light: #ECE9E4;
            --text-title-dark: #FFFFFF;
            --text-body-dark: rgba(255, 255, 255, 0.72);
            --text-title-light: #1B1626;
            --text-body-light: #4A4555;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 30px rgba(18, 16, 30, 0.06);
            --shadow-hover: 0 20px 50px -20px rgba(122, 77, 255, 0.35);
            --shadow-dark: 0 20px 60px rgba(0, 0, 0, 0.35);
        }

        /* ===== Basic Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            background-color: var(--bg-light);
            color: var(--text-body-light);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Badges ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        .badge-gold {
            background: rgba(255, 197, 61, 0.15);
            border: 1px solid rgba(255, 197, 61, 0.4);
            color: var(--gold);
        }

        .badge-success {
            background: rgba(34, 197, 94, 0.12);
            border: 1px solid rgba(34, 197, 94, 0.3);
            color: #16A34A;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(18, 16, 30, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            box-shadow: 0 6px 20px rgba(122, 77, 255, 0.35);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .header-actions {
            display: flex;
            gap: 10px;
        }

        .btn-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 24px;
            border-radius: 12px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            box-shadow: 0 4px 18px rgba(255, 94, 58, 0.3);
        }

        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(255, 94, 58, 0.4);
        }

        .btn-register {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 24px;
            border-radius: 12px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: border-color 0.25s ease, background 0.25s ease;
        }

        .btn-register:hover {
            border-color: var(--brand-orange);
            background: rgba(255, 94, 58, 0.1);
        }

        .header-nav-wrap {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 12px 0;
        }

        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            white-space: nowrap;
            padding: 4px 2px;
            position: relative;
            transition: color 0.25s ease;
        }

        .header-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .header-nav a:hover {
            color: #fff;
        }

        .header-nav a:hover::after {
            width: 100%;
        }

        .header-nav a.active {
            color: var(--brand-orange);
            font-weight: 600;
        }

        .header-nav a.active::after {
            width: 100%;
        }

        .mobile-header {
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
        }

        .mobile-login-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(122, 77, 255, 0.35);
        }

        .mobile-nav-wrap {
            display: none;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0 20px;
        }

        .mobile-nav {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scrollbar-width: none;
            padding: 10px 0;
            position: relative;
        }

        .mobile-nav::-webkit-scrollbar {
            display: none;
        }

        .mobile-nav a {
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            white-space: nowrap;
            padding: 4px 0;
            position: relative;
        }

        .mobile-nav a.active {
            color: var(--brand-orange);
            font-weight: 600;
        }

        /* ===== Article Hero Strip ===== */
        .article-hero-strip {
            background: linear-gradient(135deg, #12101E 0%, #1C1726 60%, #2A1F38 100%);
            position: relative;
            overflow: hidden;
            padding: 60px 0 56px;
        }

        .article-hero-strip::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 94, 58, 0.18) 0%, transparent 70%);
        }

        .article-hero-strip::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(122, 77, 255, 0.15) 0%, transparent 70%);
        }

        .article-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.25s ease;
        }

        .breadcrumb a:hover {
            color: var(--brand-orange);
        }

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.25);
        }

        .breadcrumb-current {
            color: rgba(255, 255, 255, 0.75);
            max-width: 240px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        .article-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-hero-meta i {
            color: var(--brand-orange);
        }

        /* ===== Article Layout ===== */
        .article-main {
            padding: 48px 0 80px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 40px;
            align-items: start;
        }

        .article-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 40px 44px;
            box-shadow: var(--shadow-card);
        }

        /* ===== Article Body Typography ===== */
        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-body-light);
            word-break: break-word;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-title-light);
            margin: 36px 0 18px;
            padding-left: 14px;
            border-left: 4px solid var(--brand-orange);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title-light);
            margin: 28px 0 14px;
            line-height: 1.35;
        }

        .article-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title-light);
            margin: 22px 0 12px;
        }

        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }

        .article-body a {
            color: var(--brand-violet);
            font-weight: 500;
            border-bottom: 1px solid rgba(122, 77, 255, 0.3);
            transition: border-color 0.25s ease;
        }

        .article-body a:hover {
            border-color: var(--brand-violet);
        }

        .article-body blockquote {
            border-left: 4px solid var(--brand-violet);
            background: rgba(122, 77, 255, 0.06);
            padding: 16px 22px;
            border-radius: 0 14px 14px 0;
            margin: 24px 0;
            font-style: normal;
            color: var(--text-body-light);
        }

        .article-body ul,
        .article-body ol {
            margin: 18px 0;
            padding-left: 6px;
        }

        .article-body ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
        }

        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 11px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-gradient);
        }

        .article-body ol {
            counter-reset: article-ol;
        }

        .article-body ol li {
            position: relative;
            padding-left: 34px;
            margin-bottom: 10px;
            counter-increment: article-ol;
        }

        .article-body ol li::before {
            content: counter(article-ol);
            position: absolute;
            left: 0;
            top: 3px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(122, 77, 255, 0.1);
            border: 1px solid rgba(122, 77, 255, 0.25);
            color: var(--brand-violet);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .article-body img {
            border-radius: 16px;
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body figure {
            margin: 24px 0;
        }

        .article-body figcaption {
            font-size: 13px;
            color: #A0A0AA;
            text-align: center;
            margin-top: 8px;
        }

        .article-body hr {
            border: none;
            height: 1px;
            background: var(--border-light);
            margin: 32px 0;
        }

        .article-body code {
            background: rgba(122, 77, 255, 0.08);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 14px;
            font-family: 'SF Mono', 'Consolas', monospace;
            color: var(--brand-violet);
        }

        .article-body pre {
            background: var(--bg-dark);
            border-radius: 14px;
            padding: 20px 24px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .article-body pre code {
            background: transparent;
            color: rgba(255, 255, 255, 0.85);
            padding: 0;
            font-size: 14px;
            line-height: 1.6;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }

        .article-body table th {
            background: var(--bg-dark);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }

        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
        }

        .article-body table tr:last-child td {
            border-bottom: none;
        }

        /* ===== Article Empty ===== */
        .article-empty {
            padding: 80px 40px;
            text-align: center;
        }

        .article-empty i {
            font-size: 48px;
            color: #D0CDD6;
            margin-bottom: 16px;
        }

        .article-empty p {
            font-size: 18px;
            color: var(--text-body-light);
            margin-bottom: 24px;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            box-shadow: 0 6px 20px rgba(255, 94, 58, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(122, 77, 255, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            background: transparent;
            border: 1.5px solid rgba(122, 77, 255, 0.4);
            color: var(--brand-violet);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-outline:hover {
            border-color: var(--brand-violet);
            background: rgba(122, 77, 255, 0.06);
            transform: translateY(-2px);
        }

        /* ===== Article Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0 0;
            margin-top: 30px;
            border-top: 1px solid var(--border-light);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(122, 77, 255, 0.06);
            border: 1px solid rgba(122, 77, 255, 0.15);
            font-size: 13px;
            font-weight: 500;
            color: var(--brand-violet);
            transition: all 0.25s ease;
            cursor: pointer;
        }

        .tag:hover {
            background: rgba(122, 77, 255, 0.12);
            border-color: rgba(122, 77, 255, 0.35);
        }

        /* ===== Article Return ===== */
        .article-return {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }

        /* ===== Related Section ===== */
        .related-section {
            margin-top: 44px;
        }

        .related-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-title-light);
            margin-bottom: 24px;
        }

        .related-title::before {
            content: '';
            width: 5px;
            height: 24px;
            border-radius: 3px;
            background: var(--brand-gradient);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .related-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #E8E6EE;
        }

        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .related-cover .related-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            padding: 3px 12px;
            border-radius: 999px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .related-info {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 8px;
        }

        .related-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-title-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 45px;
            transition: color 0.25s ease;
        }

        .related-card:hover .related-card-title {
            color: var(--brand-violet);
        }

        .related-time {
            font-size: 13px;
            color: #A0A0AA;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            padding-top: 8px;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--bg-card-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title-light);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-title::before {
            content: '';
            width: 4px;
            height: 18px;
            border-radius: 2px;
            background: var(--brand-gradient);
        }

        /* Login Card */
        .sidebar-login-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 40px rgba(122, 77, 255, 0.3);
            text-align: center;
            color: #fff;
        }

        .sidebar-login-card::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.12);
        }

        .sidebar-login-card::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -20px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .sidebar-login-card .badge {
            position: relative;
            z-index: 2;
            margin-bottom: 12px;
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.35);
            color: #fff;
        }

        .sidebar-login-card h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 6px;
            position: relative;
            z-index: 2;
        }

        .sidebar-login-card p {
            font-size: 13px;
            opacity: 0.8;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .btn-login-full {
            position: relative;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--brand-violet);
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
        }

        .btn-login-full:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.2);
        }

        /* Sidebar Nav */
        .sidebar-nav li {
            border-radius: 12px;
            transition: background 0.25s ease;
        }

        .sidebar-nav li:hover {
            background: rgba(122, 77, 255, 0.05);
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body-light);
            border-bottom: 1px solid rgba(236, 233, 228, 0.6);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .sidebar-nav li:last-child a {
            border-bottom: none;
        }

        .sidebar-nav a i {
            font-size: 12px;
            color: var(--brand-violet);
        }

        .sidebar-nav a:hover {
            color: var(--brand-violet);
            padding-left: 18px;
        }

        /* Popular List */
        .popular-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .popular-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(236, 233, 228, 0.6);
            transition: background 0.2s ease;
        }

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

        .popular-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 10px;
            background: rgba(122, 77, 255, 0.08);
            color: var(--brand-violet);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .popular-item:nth-child(1) .popular-num,
        .popular-item:nth-child(2) .popular-num,
        .popular-item:nth-child(3) .popular-num {
            background: var(--brand-gradient);
            color: #fff;
        }

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

        .popular-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-title-light);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.25s ease;
            cursor: pointer;
        }

        .popular-title:hover {
            color: var(--brand-violet);
        }

        .popular-views {
            font-size: 12px;
            color: #A0A0AA;
            margin-top: 4px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* Sidebar Banner */
        .sidebar-banner {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/10;
            box-shadow: var(--shadow-card);
        }

        .sidebar-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .sidebar-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 16, 30, 0.82) 0%, transparent 55%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 18px;
        }

        .sidebar-banner .banner-overlay span {
            color: var(--gold);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .sidebar-banner .banner-overlay p {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
        }

        /* ===== Article CTA ===== */
        .article-cta {
            padding: 0 0 80px;
        }

        .cta-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            box-shadow: 0 20px 50px rgba(122, 77, 255, 0.3);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50px;
            left: -30px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 3px solid rgba(255, 255, 255, 0.1);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: 10%;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-info {
            position: relative;
            z-index: 2;
        }

        .cta-info h2 {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        .btn-cta-grand {
            position: relative;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--brand-violet);
            font-size: 15px;
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            cursor: pointer;
            border: none;
        }

        .btn-cta-grand:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 3px solid transparent;
            border-image: var(--brand-gradient) 1;
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .footer-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 18px;
            font-weight: 900;
        }

        .footer-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 14px;
        }

        .footer-column-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--brand-orange);
            padding-left: 4px;
        }

        .footer-links a i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.25);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-contact-item i {
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--brand-orange);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== Float CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 24px;
            border-radius: 999px;
            background: var(--brand-gradient);
            box-shadow: 0 10px 30px rgba(122, 77, 255, 0.4);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
            cursor: pointer;
            border: none;
        }

        .float-cta.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .float-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(122, 77, 255, 0.5);
        }

        .float-cta .online-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 280px;
                gap: 28px;
            }

            .article-card {
                padding: 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-hero-strip {
                padding: 36px 0 32px;
            }

            .article-hero-title {
                font-size: 26px;
            }

            .article-main {
                padding: 24px 0 60px;
            }

            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                margin-top: 0;
            }

            .article-card {
                padding: 24px 20px;
                border-radius: 20px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .cta-card {
                padding: 36px 28px;
                flex-direction: column;
                text-align: center;
            }

            .btn-cta-grand {
                width: 100%;
                justify-content: center;
            }

            .float-cta {
                width: 52px;
                height: 52px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
                right: 16px;
                bottom: 16px;
            }

            .float-cta span:not(.online-dot) {
                display: none;
            }

            .float-cta .online-dot {
                position: absolute;
                top: 3px;
                right: 3px;
                width: 9px;
                height: 9px;
            }

            .article-hero-meta {
                gap: 14px;
                font-size: 13px;
            }

            .breadcrumb-current {
                max-width: 130px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

            /* Mobile header */
            .desktop-header {
                display: none !important;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-nav-wrap {
                display: block;
            }

            .site-header {
                position: sticky;
                top: 0;
            }
        }

        @media (max-width: 520px) {
            .article-hero-title {
                font-size: 22px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }

            .article-body h2 {
                font-size: 20px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .related-cover {
                aspect-ratio: 16/9;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .article-return {
                flex-direction: column;
            }

            .article-hero-meta {
                flex-direction: column;
                gap: 6px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-orange: #FF5E3A;
            --brand-violet: #7A4DFF;
            --brand-gradient: linear-gradient(135deg, #FF5E3A 0%, #7A4DFF 100%);
            --gold: #FFC53D;
            --success: #22C55E;
            --danger: #EF4444;
            --bg-dark: #12101E;
            --bg-card-dark: #1C1726;
            --border-dark: rgba(255,255,255,0.08);
            --bg-light: #F8F6F3;
            --bg-card-light: #FFFFFF;
            --border-light: #ECE9E4;
            --text-title: #1B1626;
            --text-body: #4A4555;
            --text-inverse: rgba(255,255,255,0.72);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-btn: 12px;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            line-height: 1.75;
            background: var(--bg-light);
            color: var(--text-body);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button { cursor: pointer; }
        ul, ol { list-style: none; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(18, 16, 30, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
        }
        .header-nav-wrap { border-top: 1px solid var(--border-dark); }
        .header-nav {
            display: flex;
            gap: 4px;
            padding: 8px 0;
        }
        .header-nav a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 10px;
            transition: all 0.3s;
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .header-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(255, 94, 58, 0.16), rgba(122, 77, 255, 0.16));
            box-shadow: inset 0 0 0 1px rgba(255, 94, 58, 0.3);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 18px;
            font-weight: 900;
            box-shadow: 0 4px 14px rgba(122, 77, 255, 0.4);
        }
        .logo-text {
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
        }
        .badge-gold {
            background: linear-gradient(135deg, #FFC53D, #F59E0B);
            color: #1B1626;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }
        .btn-login {
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 10px;
            font-size: 14px;
            transition: all 0.3s;
            display: inline-block;
        }
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.4);
        }
        .btn-register {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 10px;
            font-size: 14px;
            transition: all 0.3s;
            display: inline-block;
            margin-left: 8px;
        }
        .btn-register:hover {
            border-color: var(--brand-orange);
            color: var(--brand-orange);
        }
        .mobile-header { display: none; }
        .mobile-nav-wrap { display: none; }
        .mobile-login-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #12101E;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, #FF5E3A, #7A4DFF) 1;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 900;
        }
        .footer-logo-text { color: #fff; font-size: 20px; font-weight: 800; }
        .footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); }
        .footer-column-title { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a { color: rgba(255, 255, 255, 0.55); font-size: 14px; transition: color 0.3s; }
        .footer-links a:hover { color: var(--brand-orange); }
        .footer-contact-item { font-size: 14px; color: rgba(255, 255, 255, 0.55); margin-bottom: 10px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 分类页 Hero ===== */
        .page-hero {
            position: relative;
            background: #12101E;
            overflow: hidden;
            padding: 90px 0 80px;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(18, 16, 30, 0.92) 30%, rgba(18, 16, 30, 0.55) 70%, rgba(18, 16, 30, 0.8) 100%);
        }
        .page-hero .container { position: relative; z-index: 2; }
        .page-hero-content { max-width: 680px; }
        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 197, 61, 0.12);
            border: 1px solid rgba(255, 197, 61, 0.3);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 20px;
        }
        .page-hero h1 span.gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .page-hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.35);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(122, 77, 255, 0.45);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--brand-orange);
            color: var(--brand-orange);
            background: rgba(255, 94, 58, 0.06);
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-stat {
            text-align: center;
            padding: 12px 8px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            font-family: 'Arial', sans-serif;
        }
        .hero-stat .stat-unit {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-left: 2px;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        /* ===== 登录流程区 ===== */
        .guide-section {
            padding: 90px 0 70px;
            background: var(--bg-light);
        }
        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-orange);
            background: rgba(255, 94, 58, 0.08);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.25;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-body);
            max-width: 520px;
            margin: 0 auto;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: start;
        }

        /* 时间线 */
        .timeline { position: relative; padding-left: 30px; }
        .timeline::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(to bottom, #FF5E3A, #7A4DFF);
            border-radius: 2px;
            opacity: 0.4;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }
        .timeline-item:last-child { margin-bottom: 0; }
        .timeline-marker {
            position: absolute;
            left: -30px;
            top: 4px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-card-light);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #FF5E3A, #7A4DFF) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: var(--brand-violet);
            box-shadow: 0 4px 16px rgba(122, 77, 255, 0.2);
            z-index: 1;
        }
        .timeline-card {
            background: var(--bg-card-light);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 24px 22px;
            box-shadow: 0 8px 30px rgba(18, 16, 30, 0.05);
            transition: all 0.3s;
        }
        .timeline-card:hover {
            box-shadow: 0 20px 50px -20px rgba(122, 77, 255, 0.3);
            transform: translateY(-2px);
        }
        .step-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--brand-violet);
            background: rgba(122, 77, 255, 0.08);
            padding: 2px 10px;
            border-radius: 999px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .timeline-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 8px;
        }
        .timeline-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* 右侧内容卡 */
        .content-side { display: flex; flex-direction: column; gap: 28px; }
        .image-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(18, 16, 30, 0.12);
            aspect-ratio: 16/10;
        }
        .image-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .image-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 16, 30, 0.75) 0%, rgba(18, 16, 30, 0.1) 60%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
        }
        .image-card-overlay .badge-flow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 197, 61, 0.15);
            border: 1px solid rgba(255, 197, 61, 0.35);
            color: var(--gold);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            width: fit-content;
        }
        .image-card-overlay p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
        }

        .official-entry-card {
            background: var(--bg-card-dark);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }
        .official-entry-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(122, 77, 255, 0.2), transparent 70%);
        }
        .entry-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(34, 197, 94, 0.12);
            border: 1px solid rgba(34, 197, 94, 0.3);
            color: var(--success);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .official-entry-card h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .official-entry-card p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 20px;
        }
        .official-entry-card .btn-primary { width: 100%; justify-content: center; }

        /* ===== 登录方式区 ===== */
        .method-section {
            padding: 80px 0;
            background: #12101E;
            position: relative;
            overflow: hidden;
        }
        .method-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(255, 94, 58, 0.1), transparent 70%);
        }
        .method-section .container { position: relative; z-index: 2; }
        .method-section .section-head h2 { color: #fff; }
        .method-section .section-head p { color: rgba(255, 255, 255, 0.6); }
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.3s;
        }
        .method-card:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-4px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
        }
        .method-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(122, 77, 255, 0.3);
        }
        .method-card h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .method-card p { color: rgba(255, 255, 255, 0.55); font-size: 14px; line-height: 1.7; }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 90px 0;
            background: var(--bg-light);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 56px;
            align-items: start;
        }
        .faq-left { position: sticky; top: 120px; }
        .faq-left h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-title);
            margin-bottom: 14px;
        }
        .faq-left p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
        }
        .faq-list { display: flex; flex-direction: column; gap: 14px; }
        .faq-item {
            background: var(--bg-card-light);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .faq-item.active {
            border-color: rgba(122, 77, 255, 0.4);
            box-shadow: 0 8px 30px rgba(122, 77, 255, 0.08);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
        }
        .q-badge {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-question h3 { font-size: 16px; font-weight: 600; color: var(--text-title); flex: 1; }
        .faq-toggle {
            font-size: 22px;
            color: var(--brand-violet);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-toggle { transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease, opacity 0.3s;
            opacity: 0;
            padding: 0 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            opacity: 1;
            padding: 0 20px 20px 48px;
        }
        .a-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: rgba(122, 77, 255, 0.12);
            color: var(--brand-violet);
            font-size: 12px;
            font-weight: 700;
            margin-right: 8px;
            vertical-align: middle;
        }
        .faq-answer p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            margin-top: 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 20px 0 80px;
            background: var(--bg-light);
        }
        .cta-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 50px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(122, 77, 255, 0.35);
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 260px;
            height: 260px;
            border: 2px solid rgba(255, 255, 255, 0.15);
            border-radius: 50%;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: 20%;
            width: 240px;
            height: 240px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        .cta-card .cta-text { position: relative; z-index: 2; }
        .cta-card h2 { color: #fff; font-size: 28px; font-weight: 800; margin-bottom: 8px; }
        .cta-card p { color: rgba(255, 255, 255, 0.85); font-size: 15px; }
        .cta-card .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand-violet);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
            position: relative;
            z-index: 2;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        .cta-card .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
        }

        /* ===== 返回入口 ===== */
        .bottom-nav-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            padding: 20px 0 60px;
            background: var(--bg-light);
        }
        .btn-back-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--border-light);
            background: var(--bg-card-light);
            color: var(--text-title);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
        }
        .btn-back-top:hover {
            border-color: var(--brand-violet);
            color: var(--brand-violet);
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.12);
        }
        .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
        }
        .btn-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(122, 77, 255, 0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero { padding: 60px 0; }
            .page-hero h1 { font-size: 34px; }
            .guide-grid { gap: 40px; }
            .method-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
            .faq-layout { grid-template-columns: 1fr; gap: 40px; }
            .faq-left { position: static; }
            .cta-card { padding: 40px 32px; flex-direction: column; text-align: center; }
        }

        @media (max-width: 768px) {
            .desktop-header { display: none; }
            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 12px 16px;
            }
            .mobile-login-btn {
                display: flex;
                width: 40px;
                height: 40px;
            }
            .mobile-nav-wrap {
                display: block;
                border-top: 1px solid var(--border-dark);
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
            .mobile-nav {
                display: flex;
                gap: 4px;
                padding: 6px 16px;
                white-space: nowrap;
            }
            .mobile-nav a {
                color: rgba(255, 255, 255, 0.65);
                font-size: 14px;
                font-weight: 500;
                padding: 8px 16px;
                border-radius: 8px;
                transition: all 0.3s;
                display: inline-block;
            }
            .mobile-nav a.active {
                color: #fff;
                background: linear-gradient(135deg, rgba(255, 94, 58, 0.16), rgba(122, 77, 255, 0.16));
            }
            .site-header { position: sticky; top: 0; }

            .page-hero { padding: 48px 0 50px; }
            .page-hero h1 { font-size: 30px; }
            .page-hero-desc { font-size: 15px; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .guide-section { padding: 60px 0 50px; }
            .section-head { margin-bottom: 36px; }
            .section-head h2 { font-size: 26px; }
            .guide-grid { grid-template-columns: 1fr; gap: 36px; }
            .timeline { padding-left: 28px; }
            .timeline::before { left: 20px; }
            .timeline-marker { left: -28px; width: 40px; height: 40px; font-size: 16px; }
            .method-grid { grid-template-columns: 1fr; gap: 16px; }
            .faq-section { padding: 60px 0; }
            .faq-layout { grid-template-columns: 1fr; }
            .faq-left h2 { font-size: 26px; }
            .cta-section { padding: 10px 0 60px; }
            .cta-card { padding: 36px 24px; }
            .cta-card h2 { font-size: 22px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
            .bottom-nav-actions { flex-direction: column; align-items: center; padding: 16px 0 40px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .logo-text { font-size: 19px; }
            .header-actions { display: none; }
            .mobile-header { padding: 10px 16px; }
            .page-hero h1 { font-size: 26px; }
            .hero-actions { flex-direction: column; width: 100%; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); }
            .timeline-card { padding: 20px 18px; }
            .official-entry-card { padding: 24px 20px; }
            .method-card { padding: 24px 20px; }
            .faq-question { padding: 16px 14px; }
            .faq-question h3 { font-size: 15px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        }