/* roulang page: index */
:root {
            --color-primary: #C8F169;
            --color-danger: #FF4A4A;
            --color-accent: #2DD4BF;
            --color-bg: #0D1110;
            --color-bg-alt: #141A17;
            --color-card: #1A221E;
            --color-surface: #232D27;
            --color-text: #F2F7F2;
            --color-text-secondary: #93A89C;
            --color-text-muted: #5B6E63;
            --border-white: rgba(255, 255, 255, 0.1);
            --radius: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input {
            font-family: inherit;
            outline: none;
            border: none;
            background: none;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .grid-texture {
            background-image: radial-gradient(rgba(200, 241, 105, 0.06) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .hero-gradient {
            background: linear-gradient(105deg, rgba(13, 17, 16, 0.97) 0%, rgba(13, 17, 16, 0.82) 45%, rgba(13, 17, 16, 0.45) 100%);
        }

        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
            border-color: rgba(200, 241, 105, 0.5);
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #0D1110;
            font-weight: 600;
            border-radius: 9999px;
            padding: 0.75rem 1.6rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: filter 0.2s, transform 0.2s, box-shadow 0.2s;
            cursor: pointer;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(200, 241, 105, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.95);
        }

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(200, 241, 105, 0.4);
        }

        .btn-secondary {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-weight: 500;
            border-radius: 9999px;
            padding: 0.75rem 1.6rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: background-color 0.2s, border-color 0.2s;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.2);
            border-color: rgba(200, 241, 105, 0.3);
        }

        .btn-secondary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(200, 241, 105, 0.3);
        }

        .section-number {
            font-family: 'Courier New', monospace;
            font-size: 0.85rem;
            color: var(--color-primary);
            border: 1px solid rgba(200, 241, 105, 0.5);
            border-radius: 9999px;
            width: 2rem;
            height: 2rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .progress-bar {
            height: 3px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.1);
            overflow: hidden;
        }

        .progress-bar-fill {
            height: 100%;
            border-radius: 999px;
            background: var(--color-primary);
            transition: width 0.4s ease;
        }

        .progress-bar-striped {
            background: repeating-linear-gradient(45deg,
                    var(--color-primary) 0px,
                    var(--color-primary) 6px,
                    rgba(200, 241, 105, 0.3) 6px,
                    rgba(200, 241, 105, 0.3) 12px);
        }

        .scrollbar-thin::-webkit-scrollbar {
            height: 6px;
            width: 6px;
        }

        .scrollbar-thin::-webkit-scrollbar-track {
            background: transparent;
        }

        .scrollbar-thin::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 999px;
        }

        .scrollbar-thin::-webkit-scrollbar-thumb:hover {
            background: rgba(200, 241, 105, 0.4);
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-1 {
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-icon {
            transition: transform 0.3s ease;
        }

        .nav-link-active {
            color: #fff;
            border-bottom: 2px solid var(--color-primary);
        }

        .nav-link {
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color 0.2s, border-color 0.2s;
            padding-bottom: 0.25rem;
        }

        .nav-link:hover {
            color: #fff;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }

        .pulse-dot {
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @media (max-width: 1023px) {
            .desktop-nav-links {
                display: none;
            }
        }

        @media (max-width: 639px) {
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 0.5rem;
            }
        }

        @media (min-width: 640px) {
            .hero-stats-grid {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
            }
        }

        .sticky-nav-scrolled {
            background: rgba(13, 17, 16, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .badge-hot {
            background: var(--color-danger);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 600;
            border-radius: 999px;
            padding: 0.1rem 0.5rem;
            text-transform: uppercase;
        }

        .overflow-x-auto {
            -webkit-overflow-scrolling: touch;
            scroll-snap-type: x mandatory;
        }

        .snap-card {
            scroll-snap-align: start;
        }

/* roulang page: category1 */
:root {
            --primary: #C8F169;
            --accent: #FF4A4A;
            --info: #2DD4BF;
            --bg: #0D1110;
            --bg-secondary: #141A17;
            --card: #1A221E;
            --surface: #232D27;
            --text: #F2F7F2;
            --text-secondary: #93A89C;
            --text-muted: #5B6E63;
            --radius: 12px;
            --shadow: 0 8px 24px rgba(0, 0, 0, .2);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding: 0 1.5rem;
            }
        }
        .nav-link {
            color: var(--text-secondary);
            transition: color .2s;
            padding: .25rem 0;
            position: relative;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link-active {
            color: #fff;
            border-bottom: 2px solid var(--primary);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: var(--primary);
            color: var(--bg);
            font-weight: 600;
            border-radius: 9999px;
            padding: .75rem 1.5rem;
            font-size: .95rem;
            transition: all .2s;
            box-shadow: 0 4px 16px rgba(200, 241, 105, .25);
            min-height: 44px;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
        }
        .btn-primary:active {
            transform: scale(.95);
        }
        .btn-primary:focus,
        .btn-secondary:focus {
            outline: 2px solid rgba(200, 241, 105, .5);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 9999px;
            padding: .75rem 1.5rem;
            font-size: .95rem;
            transition: all .2s;
            min-height: 44px;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, .16);
            border-color: rgba(200, 241, 105, .3);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            color: var(--primary);
            font-size: .8rem;
            font-weight: 500;
            letter-spacing: .02em;
        }
        .section-tag::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--primary);
            border-radius: 2px;
            display: inline-block;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            line-height: 1.3;
            margin-top: .75rem;
            color: var(--text);
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .content-card {
            background: var(--card);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            transition: all .25s;
        }
        .content-card:hover {
            border-color: rgba(200, 241, 105, .4);
            box-shadow: var(--shadow);
        }
        .alert-box {
            background: rgba(200, 241, 105, .06);
            border: 1px solid rgba(200, 241, 105, .25);
            border-radius: var(--radius);
            padding: 1rem 1.25rem;
            font-size: .9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            border-left: 3px solid var(--primary);
        }
        .step-list {
            list-style: none;
            margin-top: 1.5rem;
        }
        .step-list li {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .step-list li:last-child {
            border-bottom: none;
        }
        .step-num {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .75rem;
            font-weight: 700;
            color: var(--primary);
            font-family: ui-monospace, monospace;
        }
        .activity-list {
            margin-top: 1.25rem;
            display: grid;
            gap: .9rem;
        }
        .activity-list li {
            display: flex;
            gap: .75rem;
            align-items: flex-start;
            font-size: .95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .activity-list li::before {
            content: '';
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            margin-top: .45rem;
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
            margin-top: 1.5rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary) 0%, rgba(200, 241, 105, .2) 60%, transparent 100%);
        }
        .timeline-item {
            position: relative;
            padding-bottom: 1.75rem;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -1.65rem;
            top: .35rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg);
            border: 4px solid var(--primary);
        }
        .timeline-item span {
            font-weight: 600;
            color: var(--text);
            font-size: 1rem;
        }
        .timeline-item p {
            color: var(--text-secondary);
            font-size: .92rem;
            line-height: 1.6;
            margin-top: .25rem;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            margin-bottom: 1rem;
            transition: border-color .2s;
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, .2);
        }
        .faq-item.open {
            border-color: rgba(200, 241, 105, .4);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            color: var(--text);
            font-weight: 500;
            text-align: left;
            font-size: .98rem;
            transition: color .2s;
            gap: 1rem;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary);
            transition: transform .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
        }
        .faq-answer {
            display: none;
            padding: 0 1.25rem 1.1rem;
            font-size: .9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .category-entry {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 1rem;
            padding: 2rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: flex-start;
            transition: border-color .25s, box-shadow .25s;
        }
        .category-entry:hover {
            border-color: rgba(200, 241, 105, .4);
            box-shadow: var(--shadow);
        }
        @media (min-width: 768px) {
            .category-entry {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 2.5rem 3rem;
            }
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: rgba(13, 17, 16, .5);
            border: 1px solid rgba(200, 241, 105, .4);
            color: var(--primary);
            border-radius: 9999px;
            padding: .4rem 1rem;
            font-size: .8rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .hero-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .5;
                transform: scale(.7);
            }
        }
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(200, 241, 105, .4), transparent);
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, .15);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(200, 241, 105, .4);
        }
        .text-gradient-primary {
            background: linear-gradient(135deg, #c8f169 0%, #8fd44e 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

/* roulang page: article */
:root {
            --primary: #C8F169;
            --accent: #FF4A4A;
            --cyan: #2DD4BF;
            --bg: #0D1110;
            --bg-2: #141A17;
            --bg-3: #1A221E;
            --bg-4: #232D27;
            --text: #F2F7F2;
            --text-2: #93A89C;
            --text-3: #5B6E63;
            --radius: 12px;
            --shadow: 0 8px 24px rgba(0,0,0,.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

        input {
            font-family: inherit;
            outline: none;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding: 0 1.5rem;
            }
        }

        /* ===== 导航 ===== */
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            height: 48px;
            color: var(--text-2);
            transition: color .2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text);
        }

        .nav-link-active {
            color: #fff !important;
            font-weight: 500;
        }

        .nav-link-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            border-radius: 2px 2px 0 0;
            background: var(--primary);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: var(--bg);
            font-weight: 600;
            font-size: 15px;
            border-radius: 999px;
            padding: 12px 28px;
            transition: all .2s;
            border: 1px solid var(--primary);
            min-height: 48px;
        }

        .btn-primary:hover {
            background: #d8f78a;
            border-color: #d8f78a;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(200, 241, 105, .15);
        }

        .btn-primary:active {
            transform: scale(.96);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(200, 241, 105, .5);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            border-radius: 999px;
            padding: 12px 28px;
            transition: all .2s;
            border: 1px solid rgba(255, 255, 255, .2);
            min-height: 48px;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, .15);
            border-color: rgba(200, 241, 105, .3);
        }

        .btn-secondary:active {
            transform: scale(.96);
        }

        /* ===== 区块 ===== */
        .section-padding {
            padding: 4rem 0;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding: 6rem 0;
            }
        }

        .section-header {
            margin-bottom: 2.5rem;
            max-width: 640px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: .02em;
            margin-bottom: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            border: 1px solid rgba(200, 241, 105, .3);
            background: rgba(200, 241, 105, .06);
        }

        .section-header h2 {
            font-size: 1.65rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
            position: relative;
            padding-left: 16px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 4px;
            height: 24px;
            border-radius: 4px;
            background: var(--primary);
        }

        .section-header p {
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 2rem;
            }
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-3);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            transition: all .25s;
        }

        .card:hover {
            border-color: rgba(200, 241, 105, .4);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .35);
        }

        /* ===== 统计卡 ===== */
        .stat-card {
            background: rgba(26, 34, 30, .75);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 12px;
            padding: 14px 16px;
            text-align: center;
            backdrop-filter: blur(4px);
        }

        .stat-number {
            font-family: 'SF Mono', ui-monospace, monospace;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-feature-settings: 'tnum';
        }

        .stat-label {
            font-size: 12px;
            color: var(--text-2);
            margin-top: 2px;
        }

        /* ===== 活动图标卡片 ===== */
        .activity-card {
            background: var(--bg-3);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            padding: 24px;
            transition: all .25s;
            position: relative;
        }

        .activity-card:hover {
            border-color: rgba(200, 241, 105, .4);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
            transform: translateY(-2px);
        }

        .activity-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 241, 105, .1);
            border: 1px solid rgba(200, 241, 105, .25);
            margin-bottom: 14px;
        }

        .activity-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #fff;
        }

        .activity-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.65;
            margin-bottom: 12px;
        }

        .activity-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--text-2);
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 6px;
            padding: 2px 8px;
        }

        /* ===== 要点框 ===== */
        .highlight-box {
            background: linear-gradient(135deg, rgba(200, 241, 105, .07), rgba(200, 241, 105, .02));
            border: 1px solid rgba(200, 241, 105, .35);
            border-radius: 16px;
            padding: 28px 30px;
            position: relative;
        }

        .highlight-box::before {
            content: '';
            position: absolute;
            left: 0;
            top: 24px;
            bottom: 24px;
            width: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .highlight-box p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 8px;
            bottom: 8px;
            width: 1px;
            background: rgba(200, 241, 105, .3);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 32px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -32px;
            top: 4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-3);
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: ui-monospace, monospace;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
        }

        .timeline-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-3);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .3s;
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, .18);
        }

        .faq-item.active {
            border-color: rgba(200, 241, 105, .4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            transition: background .2s;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, .03);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-2);
            transition: transform .3s, background .3s, color .3s;
            user-select: none;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(200, 241, 105, .15);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-2);
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding-top: 14px;
            margin-top: 0;
        }

        /* ===== 图文混排 ===== */
        .split-image-wrap {
            border-radius: 16px;
            overflow: hidden;
            position: relative;
            min-height: 260px;
        }

        .split-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        /* ===== 相关入口卡 ===== */
        .related-card {
            background: var(--bg-3);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            padding: 28px;
            transition: all .25s;
            display: block;
        }

        .related-card:hover {
            border-color: rgba(200, 241, 105, .4);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
        }

        .related-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.65;
        }

        /* ===== 页脚 ===== */
        .footer-link {
            color: var(--text-2);
            transition: color .2s;
            font-size: 14px;
        }

        .footer-link:hover {
            color: var(--primary);
        }

        /* ===== 背景纹理 ===== */
        .bg-grid-texture {
            background-image:
                radial-gradient(circle at 20% 20%, rgba(200, 241, 105, .06) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(45, 212, 191, .04) 0%, transparent 40%),
                linear-gradient(rgba(200, 241, 105, .02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(200, 241, 105, .02) 1px, transparent 1px);
            background-size: 60px 60px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .nav-channel-row {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .section-padding {
                padding: 3rem 0;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
            }
            .timeline {
                padding-left: 28px;
            }
            .highlight-box {
                padding: 22px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #C8F169;
            --secondary: #FF4A4A;
            --accent: #2DD4BF;
            --bg: #0D1110;
            --bg-secondary: #141A17;
            --card: #1A221E;
            --card-hover: #232D27;
            --text: #F2F7F2;
            --text-secondary: #93A89C;
            --text-muted: #5B6E63;
            --border: rgba(255, 255, 255, 0.1);
            --radius: 12px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        /* 导航链接 */
        .nav-link {
            color: var(--text-secondary);
            transition: color 0.2s;
            padding: 0.25rem 0;
            border-bottom: 2px solid transparent;
        }

        .nav-link:hover {
            color: var(--text);
        }

        .nav-link-active {
            color: var(--text) !important;
            border-bottom-color: var(--primary);
        }

        /* 卡片 */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            border-color: rgba(200, 241, 105, 0.5);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            transform: translateY(-4px);
        }

        .feature-card .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(200, 241, 105, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        /* 强调框 */
        .highlight-box {
            border: 1px solid rgba(200, 241, 105, 0.3);
            background: rgba(200, 241, 105, 0.05);
            border-radius: var(--radius);
            padding: 1.5rem;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--primary);
            color: var(--bg);
            font-weight: 600;
            border-radius: 9999px;
            padding: 0.75rem 1.75rem;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
        }

        .btn-primary:active {
            transform: scale(0.95);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text);
            font-weight: 500;
            border-radius: 9999px;
            padding: 0.75rem 1.75rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(200, 241, 105, 0.3);
        }

        .btn-outline:active {
            transform: scale(0.95);
        }

        /* 搜索框 */
        .search-input {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 9999px;
            padding: 0.375rem 2.5rem 0.375rem 1rem;
            font-size: 0.85rem;
            color: var(--text);
            transition: all 0.2s;
            width: 100%;
        }

        .search-input:focus {
            outline: none;
            border-color: rgba(200, 241, 105, 0.6);
            box-shadow: 0 0 0 2px rgba(200, 241, 105, 0.2);
        }

        .search-input::placeholder {
            color: var(--text-muted);
        }

        /* 移动端菜单 */
        .mobile-menu-open {
            display: block !important;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            background: var(--card);
            border-radius: 10px;
            transition: border-color 0.2s;
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        .faq-item.open {
            border-color: rgba(200, 241, 105, 0.4);
        }

        .faq-answer {
            display: none;
            padding-top: 0.75rem;
            margin-top: 0.75rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-icon {
            transition: transform 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        /* 滚动条 */
        .scrollbar-thin::-webkit-scrollbar {
            height: 4px;
        }

        .scrollbar-thin::-webkit-scrollbar-track {
            background: transparent;
        }

        .scrollbar-thin::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

        /* 数字等宽 */
        .num {
            font-variant-numeric: tabular-nums;
        }