/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-bg-primary: #0A1128;
            --color-bg-secondary: #0E1735;
            --color-primary: #00E5FF;
            --color-accent: #00FFA3;
            --color-warm: #FFB74D;
            --color-text: #F2F6FF;
            --color-text-secondary: #9BA8C7;
            --color-glass-bg: rgba(255,255,255,0.06);
            --color-glass-border: rgba(255,255,255,0.12);
            --radius-card: 20px;
            --radius-button: 12px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-glow-primary: 0 0 24px rgba(0,229,255,0.35);
            --shadow-glow-accent: 0 0 24px rgba(0,255,163,0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 基础 Reset ===== */
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg-primary);
            padding-bottom: 90px;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        button { background: none; border: none; cursor: pointer; }
        h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.3; font-weight: 700; }
        p { margin: 0; }
        ul { list-style: none; padding: 0; margin: 0; }

        .container-xl {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-block { padding: 96px 0; }
        @media (max-width: 768px) {
            .section-block { padding: 64px 0; }
        }

        /* ===== 按钮 ===== */
        .btn {
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            font-size: 1rem;
            font-weight: 600;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, #00E5FF, #00FFA3);
            color: #0A1128;
            box-shadow: var(--shadow-glow-accent);
        }
        .btn-primary-custom:hover {
            color: #0A1128;
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(0,255,163,0.5);
            transform: translateY(-2px);
        }
        .btn-outline-custom {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline-custom:hover {
            background: rgba(0,229,255,0.1);
            color: var(--color-primary);
        }
        .btn:focus-visible, .btn-primary-custom:focus-visible, .btn-outline-custom:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 3px;
        }

        /* ===== 浮动 Dock 导航 ===== */
        .site-nav {
            position: sticky;
            top: 16px;
            z-index: 1000;
            max-width: 760px;
            margin: 16px auto 0;
            border-radius: 999px;
            background: rgba(10, 17, 40, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--color-glass-border);
            box-shadow: var(--shadow-card);
            padding: 8px 20px;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
        }
        .brand .brand-icon {
            color: var(--color-primary);
            font-size: 1.15rem;
        }
        .brand:hover { color: var(--color-primary); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover { color: var(--color-text); }
        .nav-link.active {
            color: var(--color-primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        .search-toggle:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .search-toggle:focus-visible {
            outline: 2px solid var(--color-warm);
        }
        .nav-cta-btn {
            min-height: 36px;
            padding: 0 18px;
            background: linear-gradient(135deg, #00E5FF, #00FFA3);
            color: #0A1128;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }
        .nav-cta-btn:hover {
            color: #0A1128;
            filter: brightness(1.1);
            transform: translateY(-1px);
        }
        .nav-cta-btn:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 2px;
        }

        /* ===== 首屏 Hero ===== */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-image:
                linear-gradient(to top, rgba(10, 17, 40, 0.55), rgba(10, 17, 40, 0)),
                linear-gradient(to bottom, rgba(10, 17, 40, 0.2), rgba(10, 17, 40, 0)),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 120px 0;
        }
        .hero-inner {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .hero-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.25);
            padding: 8px 20px;
            border-radius: 999px;
            margin-bottom: 28px;
            animation: heroFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
        }
        .hero-title {
            font-size: clamp(2rem, 5vw, 3.25rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            line-height: 1.2;
            margin-bottom: 20px;
            animation: heroFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
        }
        .hero-subtitle {
            font-size: 1.125rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 640px;
            margin: 0 auto 32px;
            animation: heroFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: 36px;
            animation: heroFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
        }
        .hero-trust {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            animation: heroFadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.5s both;
        }
        .hero-trust .dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }

        @keyframes heroFadeInUp {
            from { opacity: 0; transform: translateY(16px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== 板块标题 ===== */
        .section-heading {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-heading.left {
            text-align: left;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            border-radius: 999px;
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            margin-bottom: 14px;
        }
        .section-heading h2 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-text);
        }
        .section-heading .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            margin-top: 12px;
            max-width: 560px;
            line-height: 1.8;
        }
        .section-heading.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卖点三连 2+1 ===== */
        .features-section {
            background: var(--color-bg-primary);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .feature-card {
            padding: 40px 32px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            transition: var(--transition-base);
        }
        .feature-card:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(0,229,255,0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }
        .feature-card .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 229, 255, 0.12);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--color-primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .feature-wide {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 5fr 7fr;
            align-items: center;
            gap: 32px;
            padding: 0;
            overflow: hidden;
        }
        .feature-wide .feature-card-inner {
            padding: 40px 32px;
        }
        .feature-wide .feature-wide-media {
            min-height: 220px;
            background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(0,255,163,0.08));
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .feature-wide .feature-wide-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .feature-grid { grid-template-columns: 1fr; }
            .feature-wide { grid-template-columns: 1fr; }
            .feature-wide .feature-card-inner { padding: 28px 24px; }
            .feature-wide .feature-wide-media { min-height: 180px; }
        }

        /* ===== 场景演示 ===== */
        .scene-section {
            background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
        }
        .scene-steps {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .scene-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .step-num {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            letter-spacing: 0.05em;
        }
        .scene-step h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .scene-step p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .scene-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .scene-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }
        .scene-glass-card {
            position: absolute;
            right: 20px;
            bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(10, 17, 40, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 229, 255, 0.35);
            border-radius: 999px;
            color: var(--color-primary);
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(0,229,255,0.3);
        }
        .faq-btn {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            color: var(--color-text);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            transition: var(--transition-base);
        }
        .faq-btn:hover { color: var(--color-primary); }
        .faq-btn:focus {
            box-shadow: none;
            outline: 2px solid var(--color-warm);
            border-radius: var(--radius-card);
        }
        .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.15);
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
            font-size: 0.85rem;
        }
        .faq-btn[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }
        .faq-body {
            padding: 0 24px 20px 62px;
            font-size: 0.9375rem;
            line-height: 1.85;
            color: var(--color-text-secondary);
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--color-text);
            box-shadow: none;
        }
        .faq-item:has(.faq-btn[aria-expanded="true"]) {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
        }
        @media (max-width: 576px) {
            .faq-body { padding: 0 18px 16px 18px; }
            .faq-btn { padding: 16px 18px; }
        }

        /* ===== 社会认同 ===== */
        .proof-section { background: var(--color-bg-primary); }
        .proof-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            transition: var(--transition-base);
        }
        .stat-item:hover {
            border-color: rgba(0,229,255,0.4);
            box-shadow: var(--shadow-glow-primary);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }
        .proof-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .proof-card {
            padding: 32px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            position: relative;
            transition: var(--transition-base);
        }
        .proof-card:hover {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: var(--shadow-card);
        }
        .proof-card::before {
            content: '\201C';
            position: absolute;
            top: 4px;
            left: 20px;
            font-size: 4rem;
            font-family: Georgia, serif;
            color: rgba(0, 229, 255, 0.25);
            line-height: 1.2;
        }
        .proof-quote {
            font-size: 1rem;
            font-weight: 500;
            line-height: 1.8;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-left: 8px;
        }
        .proof-source {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            padding-left: 8px;
        }
        @media (max-width: 768px) {
            .proof-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 2rem; }
            .proof-cards { grid-template-columns: 1fr; }
        }

        /* ===== 最新信息 / 时间线 ===== */
        .news-section {
            background: var(--color-bg-secondary);
        }
        .news-timeline-list {
            max-width: 900px;
            margin: 0 auto;
        }
        .news-timeline-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 20px 24px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            transition: var(--transition-base);
            margin-bottom: 16px;
            color: inherit;
        }
        .news-timeline-item:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(0,229,255,0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .news-date-box {
            width: 80px;
            flex-shrink: 0;
            text-align: center;
            border-right: 1px solid var(--color-glass-border);
            padding-right: 20px;
        }
        .news-month {
            font-size: 0.8rem;
            color: var(--color-warm);
            display: block;
            font-weight: 600;
            letter-spacing: 0.1em;
        }
        .news-day {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            display: block;
            line-height: 1.2;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-badge {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(255, 183, 77, 0.12);
            border: 1px solid rgba(255, 183, 77, 0.3);
            color: var(--color-warm);
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }
        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-excerpt {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-arrow {
            margin-left: 12px;
            color: var(--color-primary);
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: var(--transition-base);
        }
        .news-timeline-item:hover .news-arrow {
            transform: translateX(4px);
        }
        .news-view-all {
            text-align: center;
            margin-top: 32px;
        }
        .news-view-all a {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            border-bottom: 1px solid transparent;
        }
        .news-view-all a:hover {
            border-bottom-color: var(--color-primary);
        }

        /* 空态 */
        .news-empty {
            height: 180px;
            border: 1px dashed rgba(255,255,255,0.3);
            border-radius: var(--radius-card);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            color: var(--color-text-secondary);
            background: rgba(255,255,255,0.02);
            text-align: center;
            padding: 20px;
        }
        .news-empty .empty-icon {
            font-size: 2.4rem;
            color: var(--color-primary);
        }
        .news-empty p {
            font-size: 0.95rem;
        }
        .news-empty .empty-sub {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            opacity: 0.7;
        }

        @media (max-width: 768px) {
            .news-timeline-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 18px;
            }
            .news-date-box {
                width: 100%;
                text-align: left;
                border-right: none;
                border-bottom: 1px solid var(--color-glass-border);
                padding-right: 0;
                padding-bottom: 8px;
                display: flex;
                align-items: baseline;
                gap: 8px;
            }
            .news-month { font-size: 0.75rem; }
            .news-day { font-size: 1.2rem; }
            .news-arrow { margin-left: 0; }
        }

        /* ===== 底部固定转化条 ===== */
        .fixed-cta {
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            max-width: 720px;
            width: calc(100% - 32px);
            border-radius: 16px;
            background: rgba(10, 17, 40, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 229, 255, 0.3);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.15), var(--shadow-card);
            z-index: 900;
            padding: 12px 20px;
        }
        .fixed-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-cta-text {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .fixed-cta-text .highlight {
            color: var(--color-primary);
        }
        .btn-fixed-cta {
            min-height: 40px;
            padding: 0 20px;
            font-size: 0.875rem;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .fixed-cta {
                width: calc(100% - 24px);
                bottom: 12px;
                border-radius: 14px;
                padding: 10px 14px;
            }
            .fixed-cta-text {
                font-size: 0.82rem;
            }
            .btn-fixed-cta {
                min-height: 36px;
                padding: 0 14px;
                font-size: 0.8rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-secondary);
            padding: 80px 0 32px;
            border-top: 1px solid var(--color-glass-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .footer-brand .footer-brand-icon {
            color: var(--color-primary);
        }
        .footer-col p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .footer-col .footer-link {
            display: block;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-bottom: 10px;
            transition: var(--transition-base);
        }
        .footer-col .footer-link:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .footer-contact-item i {
            color: var(--color-primary);
            font-size: 1rem;
            margin-top: 2px;
        }
        .footer-copyright {
            border-top: 1px solid var(--color-glass-border);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .footer-copyright p {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
        }
        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-copyright { flex-direction: column; text-align: center; }
        }

        /* ===== Bootstrap 覆盖 ===== */
        .accordion-item {
            background: transparent;
            border: none;
        }
        .accordion-button::after {
            display: none;
        }
        .btn {
            box-shadow: none;
        }
        .btn:focus,
        .btn:active {
            box-shadow: none;
        }

        /* ===== 响应式调整 ===== */
        @media (max-width: 992px) {
            .site-nav {
                max-width: 94%;
                padding: 8px 16px;
            }
            .nav-links { gap: 16px; }
        }
        @media (max-width: 768px) {
            body { padding-bottom: 110px; }
            .site-nav {
                width: calc(100% - 24px);
                max-width: 100%;
                border-radius: 20px;
                padding: 8px 12px;
                top: 12px;
            }
            .nav-inner {
                gap: 8px;
            }
            .brand-text {
                display: none;
            }
            .brand {
                font-size: 1.2rem;
            }
            .brand-icon {
                font-size: 1.4rem;
            }
            .nav-links {
                flex: 1;
                justify-content: center;
                gap: 14px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-links::-webkit-scrollbar {
                display: none;
            }
            .nav-link {
                font-size: 0.85rem;
                padding: 6px 2px;
            }
            .search-toggle {
                display: none;
            }
            .nav-cta-btn {
                min-height: 34px;
                padding: 0 12px;
                font-size: 0.78rem;
                width: 34px;
                border-radius: 50%;
                padding: 0;
            }
            .nav-cta-btn span {
                display: none;
            }
            .hero {
                min-height: 72vh;
                padding: 80px 0;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn {
                min-height: 44px;
                padding: 0 20px;
                font-size: 0.9rem;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 375px) {
            body { padding-bottom: 100px; }
            .nav-links { gap: 10px; }
            .nav-link { font-size: 0.8rem; }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                gap: 10px;
            }
            .proof-card {
                padding: 24px 20px;
            }
        }

/* roulang page: article */
/* ========================================
           必一运动体育官网 - 文章详情页样式系统
           ======================================== */
        :root {
            --color-bg-primary: #0A1128;
            --color-bg-secondary: #0E1735;
            --color-primary: #00E5FF;
            --color-accent: #00FFA3;
            --color-warm: #FFB74D;
            --color-text: #F2F6FF;
            --color-text-secondary: #9BA8C7;
            --color-glass-bg: rgba(255,255,255,0.06);
            --color-glass-border: rgba(255,255,255,0.12);
            --radius-card: 20px;
            --radius-button: 12px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-glow-primary: 0 0 24px rgba(0,229,255,0.35);
            --shadow-glow-accent: 0 0 24px rgba(0,255,163,0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg-primary);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--color-accent);
        }

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

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

        input {
            font-family: inherit;
        }

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

        /* ---------- 浮动 Dock 导航 ---------- */
        .site-nav {
            position: sticky;
            top: 16px;
            z-index: 1000;
            max-width: 860px;
            margin: 16px auto 0;
            padding: 0 12px;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(10, 17, 40, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--color-glass-border);
            border-radius: 999px;
            padding: 10px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 50%;
            color: var(--color-bg-primary);
            font-size: 18px;
            box-shadow: var(--shadow-glow-primary);
        }

        .brand-text {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            position: relative;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
        }

        .nav-link.active {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.1);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: var(--shadow-glow-primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .search-toggle {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--color-text-secondary);
            font-size: 16px;
            transition: var(--transition-base);
        }

        .search-toggle:hover {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.1);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-bg-primary);
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: var(--shadow-glow-accent);
            transition: var(--transition-base);
        }

        .nav-cta-btn:hover {
            color: var(--color-bg-primary);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 255, 163, 0.5);
        }

        .nav-links-mobile {
            display: none;
        }

        .nav-links-mobile .dropdown-toggle {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--color-text-secondary);
            font-size: 18px;
            background: transparent;
            border: 1px solid var(--color-glass-border);
        }

        .nav-links-mobile .dropdown-toggle:hover {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
        }

        .nav-links-mobile .dropdown-menu {
            background: var(--color-bg-secondary);
            border: 1px solid var(--color-glass-border);
            border-radius: 16px;
            padding: 8px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .nav-links-mobile .dropdown-item {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            border-radius: 10px;
            padding: 10px 14px;
            transition: var(--transition-base);
        }

        .nav-links-mobile .dropdown-item:hover {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
        }

        /* ---------- 文章主区域 ---------- */
        .article-main {
            padding: 48px 0 88px;
            min-height: 60vh;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 36px;
            padding: 0 14px;
            border-radius: 999px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            color: var(--color-text-secondary);
            font-size: 0.875rem;
            font-weight: 500;
            transition: var(--transition-base);
        }

        .back-link:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: rgba(0, 229, 255, 0.06);
        }

        .crumb-trail {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
        }

        .crumb-trail a {
            color: var(--color-text-secondary);
            transition: var(--transition-base);
        }

        .crumb-trail a:hover {
            color: var(--color-primary);
        }

        .crumb-sep {
            color: rgba(155, 168, 199, 0.4);
        }

        .crumb-current {
            color: var(--color-text);
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ---------- 文章主卡片 ---------- */
        .post-card {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            padding: 40px 44px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .post-header {
            margin-bottom: 28px;
        }

        .post-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
        }

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

        .post-meta i {
            color: var(--color-primary);
            font-size: 15px;
        }

        .post-cover {
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 32px;
            border: 1px solid var(--color-glass-border);
        }

        .post-cover img {
            width: 100%;
            display: block;
            object-fit: cover;
            min-height: 220px;
        }

        /* ---------- 正文阅读区 ---------- */
        .post-content {
            color: var(--color-text-secondary);
            font-size: 1rem;
            line-height: 1.9;
            max-width: 720px;
            margin: 0 auto;
        }

        .post-content p {
            margin-bottom: 1.5rem;
        }

        .post-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-text);
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
            padding-left: 14px;
            border-left: 3px solid var(--color-primary);
        }

        .post-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }

        .post-content ul,
        .post-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.4rem;
        }

        .post-content li {
            margin-bottom: 0.5rem;
        }

        .post-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: rgba(0, 229, 255, 0.06);
            padding: 18px 24px;
            border-radius: 0 14px 14px 0;
            margin: 1.8rem 0;
            font-style: normal;
            color: var(--color-text);
            font-weight: 500;
        }

        .post-content blockquote p {
            margin-bottom: 0;
        }

        .post-content img {
            border-radius: 12px;
            border: 1px solid var(--color-glass-border);
            margin: 1.5rem 0;
        }

        .post-content a {
            color: var(--color-primary);
            border-bottom: 1px solid rgba(0, 229, 255, 0.3);
        }

        .post-content a:hover {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }

        /* ---------- 标签行 ---------- */
        .post-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--color-glass-border);
        }

        .tag-label {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .tag-item {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 183, 77, 0.12);
            border: 1px solid rgba(255, 183, 77, 0.25);
            color: var(--color-warm);
            font-size: 0.8125rem;
            font-weight: 500;
            transition: var(--transition-base);
        }

        .tag-item:hover {
            background: rgba(255, 183, 77, 0.2);
            border-color: var(--color-warm);
        }

        .post-footer-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        /* ---------- 相关推荐 ---------- */
        .related-section {
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid var(--color-glass-border);
        }

        .related-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .related-title::before {
            content: "";
            width: 4px;
            height: 18px;
            background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
            border-radius: 4px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .related-card {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 255, 0.4);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: var(--shadow-card);
        }

        .related-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            display: block;
        }

        .related-body {
            padding: 14px 16px 16px;
        }

        .related-cat {
            font-size: 0.75rem;
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.1);
            padding: 3px 10px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 8px;
        }

        .related-body h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ---------- 侧边栏 ---------- */
        .sidebar-sticky {
            position: sticky;
            top: 110px;
        }

        .sidebar-box {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            margin-bottom: 20px;
            transition: var(--transition-base);
        }

        .sidebar-box:hover {
            border-color: rgba(0, 229, 255, 0.25);
        }

        .sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-title::before {
            content: "";
            width: 4px;
            height: 16px;
            background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
            border-radius: 4px;
        }

        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hot-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px;
            border-radius: 14px;
            transition: var(--transition-base);
        }

        .hot-item:hover {
            background: rgba(0, 229, 255, 0.06);
        }

        .hot-item img {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .hot-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .hot-title {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .hot-item:hover .hot-title {
            color: var(--color-primary);
        }

        .hot-date {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
        }

        .sidebar-cats {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sidebar-cat {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 14px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition-base);
        }

        .sidebar-cat:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: rgba(0, 229, 255, 0.06);
            transform: translateX(4px);
        }

        .sidebar-cat i {
            font-size: 1.2rem;
            color: var(--color-primary);
        }

        .sidebar-cta {
            background: linear-gradient(145deg, rgba(0, 229, 255, 0.1), rgba(0, 255, 163, 0.08));
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .sidebar-cta h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            margin-bottom: 18px;
        }

        /* ---------- 按钮 ---------- */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-bg-primary);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            box-shadow: var(--shadow-glow-accent);
            transition: var(--transition-base);
        }

        .btn-primary-custom:hover {
            color: var(--color-bg-primary);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 255, 163, 0.5);
            filter: brightness(1.1);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition-base);
        }

        .btn-outline-custom:hover {
            background: rgba(0, 229, 255, 0.1);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-primary);
        }

        .btn-primary-custom:focus-visible,
        .btn-outline-custom:focus-visible,
        .nav-link:focus-visible,
        .search-toggle:focus-visible,
        .back-link:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 3px;
        }

        /* ---------- 内容未找到 ---------- */
        .not-found-card {
            background: var(--color-glass-bg);
            border: 1px dashed rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-card);
            text-align: center;
            padding: 72px 40px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .not-found-card i {
            font-size: 3rem;
            color: var(--color-warm);
            margin-bottom: 18px;
            display: block;
        }

        .not-found-card h2 {
            font-size: 1.5rem;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .not-found-card p {
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--color-bg-secondary);
            padding: 80px 0 0;
            border-top: 1px solid var(--color-glass-border);
        }

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

        .footer-brand-col p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 16px;
            max-width: 360px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
        }

        .footer-brand-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 50%;
            color: var(--color-bg-primary);
            font-size: 18px;
            box-shadow: var(--shadow-glow-primary);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 20px;
        }

        .footer-link {
            display: block;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            padding: 6px 0;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            color: var(--color-text-secondary);
            font-size: 0.875rem;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        .footer-copyright {
            border-top: 1px solid var(--color-glass-border);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            color: var(--color-text-secondary);
            font-size: 0.8125rem;
        }

        .footer-copyright p {
            margin: 0;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 992px) {
            .post-card {
                padding: 32px 28px;
            }

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

            .sidebar-sticky {
                position: static;
                margin-top: 24px;
            }

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

        @media (max-width: 768px) {
            .article-main {
                padding: 32px 0 64px;
            }

            .site-nav {
                position: fixed;
                bottom: 12px;
                top: auto;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 24px);
                max-width: 480px;
                margin: 0;
            }

            .nav-inner {
                padding: 8px 12px;
                border-radius: 24px;
            }

            .brand-text {
                display: none;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
            }

            .nav-links {
                display: none;
            }

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

            .nav-cta-btn span {
                display: none;
            }

            .nav-cta-btn {
                width: 38px;
                padding: 0;
                justify-content: center;
            }

            .post-card {
                padding: 28px 20px;
                border-radius: 16px;
            }

            .post-title {
                font-size: 1.55rem;
            }

            .post-meta {
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 32px;
            }

            .footer-copyright {
                flex-direction: column;
                text-align: center;
            }

            .crumb-current {
                max-width: 160px;
            }

            body {
                padding-bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .article-breadcrumb {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .post-card {
                padding: 22px 16px;
            }

            .post-tags {
                gap: 8px;
            }

            .tag-item {
                padding: 5px 10px;
                font-size: 0.75rem;
            }

            .post-footer-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .post-footer-actions .btn {
                width: 100%;
            }

            .container-xl {
                padding: 0 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg-primary: #0A1128;
            --color-bg-secondary: #0E1735;
            --color-primary: #00E5FF;
            --color-accent: #00FFA3;
            --color-warm: #FFB74D;
            --color-text: #F2F6FF;
            --color-text-secondary: #9BA8C7;
            --color-glass-bg: rgba(255, 255, 255, 0.06);
            --color-glass-border: rgba(255, 255, 255, 0.12);
            --radius-card: 20px;
            --radius-button: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-primary: 0 0 24px rgba(0, 229, 255, 0.35);
            --shadow-glow-accent: 0 0 24px rgba(0, 255, 163, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            background: var(--color-bg-primary);
            color: var(--color-text);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }

        p {
            margin: 0;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container-xl {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1080;
            padding: 16px 24px 0;
            transition: var(--transition-base);
        }

        .nav-inner {
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 20px 12px 24px;
            background: rgba(10, 17, 40, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--color-glass-border);
            border-radius: 999px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.38), inset 0 0 0 1px rgba(255, 255, 255, 0.02);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            font-size: 18px;
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.28);
        }

        .brand-text {
            font-weight: 700;
            font-size: 1.0625rem;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            position: relative;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: var(--color-primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle,
        .nav-mobile-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--color-glass-border);
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .search-toggle:hover,
        .nav-mobile-toggle:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .search-toggle:focus-visible,
        .nav-mobile-toggle:focus-visible,
        .nav-cta-btn:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 18px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128 !important;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-accent);
            filter: brightness(1.05);
        }

        .nav-mobile-toggle {
            display: none;
        }

        .mobile-menu-panel {
            max-width: 960px;
            margin: 8px auto 0;
            background: rgba(10, 17, 40, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--color-glass-border);
            border-radius: 20px;
            padding: 10px;
            box-shadow: var(--shadow-card);
        }

        .mobile-link {
            display: block;
            padding: 12px 16px;
            border-radius: 12px;
            color: var(--color-text-secondary);
            font-weight: 500;
            transition: var(--transition-base);
        }

        .mobile-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-link.active {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.1);
        }

        @media (max-width: 768px) {
            .site-nav {
                position: fixed;
                bottom: 14px;
                top: auto;
                left: 12px;
                right: 12px;
                padding: 0;
                z-index: 1080;
            }
            .nav-inner {
                max-width: 100%;
                border-radius: 999px;
                padding: 8px 12px;
                gap: 8px;
            }
            .brand {
                padding-left: 4px;
            }
            .brand-text {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .nav-mobile-toggle {
                display: flex;
            }
            .nav-cta-btn span {
                display: none;
            }
            .nav-cta-btn {
                width: 40px;
                padding: 0;
                justify-content: center;
            }
            .mobile-menu-panel {
                position: absolute;
                bottom: calc(100% + 8px);
                left: 0;
                right: 0;
                max-width: 100%;
            }
            body {
                padding-bottom: 88px;
            }
        }

        /* ===== Banner ===== */
        .category-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            margin: 16px 0 0;
            padding: 64px 0;
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(10, 17, 40, 0.12), rgba(10, 17, 40, 0.68));
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 78% 22%, rgba(0, 229, 255, 0.22), transparent 46%), radial-gradient(circle at 12% 88%, rgba(0, 255, 163, 0.12), transparent 42%);
            pointer-events: none;
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(255, 183, 77, 0.14);
            border: 1px solid rgba(255, 183, 77, 0.32);
            color: var(--color-warm);
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 5vw, 3.25rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.18;
            margin: 22px 0 18px;
            animation: fadeUp 0.6s ease 0.1s both;
        }

        .category-hero p {
            font-size: 1.0625rem;
            line-height: 1.9;
            color: var(--color-text-secondary);
            max-width: 620px;
            animation: fadeUp 0.6s ease 0.2s both;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 14px;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            margin-top: 24px;
            animation: fadeUp 0.6s ease 0.3s both;
        }

        .hero-trust .dot {
            color: var(--color-primary);
            font-weight: 700;
        }

        .category-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 34px;
            flex-wrap: wrap;
            animation: fadeUp 0.6s ease 0.35s both;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128 !important;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            line-height: 1.8;
            transition: var(--transition-base);
        }

        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 255, 163, 0.42);
            filter: brightness(1.1);
            color: #0A1128 !important;
        }

        .btn-ghost-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary) !important;
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.8;
            transition: var(--transition-base);
        }

        .btn-ghost-custom:hover {
            background: rgba(0, 229, 255, 0.1);
            color: var(--color-primary) !important;
        }

        .btn-primary-custom:focus-visible,
        .btn-ghost-custom:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 2px;
        }

        /* ===== 通用区块 ===== */
        .section-block {
            padding: 96px 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            text-transform: uppercase;
        }

        .section-tag::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            box-shadow: var(--shadow-glow-primary);
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-top: 12px;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .section-subtitle {
            color: var(--color-text-secondary);
            font-size: 1rem;
            line-height: 1.9;
            max-width: 640px;
        }

        .section-head {
            margin-bottom: 44px;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center .section-tag {
            justify-content: center;
        }

        .section-head.center .section-subtitle {
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 64px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== 卡片墙 ===== */
        .card-wall {
            background: var(--color-bg-secondary);
        }

        .wall-group+.wall-group {
            margin-top: 32px;
        }

        .group-title {
            font-size: 1.125rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            color: var(--color-text);
        }

        .group-title .group-icon {
            width: 30px;
            height: 30px;
            border-radius: 10px;
            background: rgba(0, 229, 255, 0.12);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .info-card {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
        }

        .info-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .info-card .cover-media {
            height: 176px;
            overflow: hidden;
            position: relative;
        }

        .info-card .cover-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .info-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .info-card .card-body h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text);
        }

        .info-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 500;
            font-size: 0.9rem;
            margin-top: 4px;
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover {
            color: var(--color-accent);
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        .info-card.wide-card {
            flex-direction: row;
            align-items: center;
        }

        .info-card.wide-card .cover-media {
            width: 300px;
            height: auto;
            min-height: 190px;
            flex-shrink: 0;
        }

        .info-card.wide-card .card-body {
            padding: 28px;
        }

        @media (max-width: 992px) {
            .info-card.wide-card .cover-media {
                width: 240px;
            }
        }

        @media (max-width: 768px) {
            .info-card.wide-card {
                flex-direction: column;
            }
            .info-card.wide-card .cover-media {
                width: 100%;
                height: 170px;
            }
            .info-card .cover-media {
                height: 160px;
            }
        }

        /* ===== 卖点 ===== */
        .feature-section {
            background: var(--color-bg-primary);
        }

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

        .feature-card {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            padding: 32px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.1), transparent 70%);
            pointer-events: none;
        }

        .feature-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.18), rgba(0, 255, 163, 0.12));
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .feature-card p {
            color: var(--color-text-secondary);
            font-size: 0.9375rem;
            line-height: 1.85;
        }

        .feature-wide {
            grid-column: 1 / -1;
            display: flex;
            align-items: center;
            gap: 28px;
            padding: 36px;
        }

        .feature-wide .feature-copy {
            flex: 1;
        }

        .feature-wide .feature-media {
            width: 360px;
            border-radius: 16px;
            overflow: hidden;
            flex-shrink: 0;
            box-shadow: var(--shadow-card);
        }

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

        @media (max-width: 992px) {
            .feature-wide .feature-media {
                width: 280px;
            }
        }

        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-wide {
                flex-direction: column;
                grid-column: auto;
                padding: 28px 24px;
            }
            .feature-wide .feature-media {
                width: 100%;
                height: 180px;
            }
        }

        /* ===== 场景 ===== */
        .scenario-section {
            background: var(--color-bg-secondary);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
        }

        .step-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            margin-top: 32px;
        }

        .step-item {
            display: flex;
            gap: 20px;
            padding: 18px 20px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-base);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1px var(--color-primary);
            line-height: 1;
            min-width: 52px;
            font-family: "Inter", sans-serif;
        }

        .step-item h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-text);
        }

        .step-item p {
            color: var(--color-text-secondary);
            font-size: 0.9375rem;
            line-height: 1.85;
        }

        .scenario-visual {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            min-height: 360px;
            height: 100%;
            border: 1px solid var(--color-glass-border);
        }

        .scenario-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        @media (max-width: 992px) {
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .scenario-visual {
                min-height: 260px;
            }
            .scenario-visual img {
                min-height: 260px;
            }
        }

        /* ===== 流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .process-card {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }

        .process-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-card);
            background: rgba(255, 255, 255, 0.09);
        }

        .process-num {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            font-weight: 800;
            font-size: 1.125rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-glow-accent);
        }

        .process-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .process-card p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.85;
        }

        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-bg-primary);
        }

        .faq-section .container-xl {
            max-width: 860px;
        }

        .faq-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .faq-header .section-tag {
            justify-content: center;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .accordion-item {
            background: var(--color-glass-bg) !important;
            border: 1px solid var(--color-glass-border) !important;
            border-radius: var(--radius-card) !important;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--color-primary) !important;
            box-shadow: var(--shadow-glow-primary);
        }

        .accordion-button {
            background: transparent !important;
            color: var(--color-text) !important;
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            box-shadow: none !important;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .accordion-button::after {
            background-image: none !important;
            content: '+';
            font-size: 1.4rem;
            color: var(--color-primary);
            transform: none;
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            margin-left: auto;
            flex-shrink: 0;
        }

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

        .accordion-button:not(.collapsed) {
            background: rgba(0, 229, 255, 0.06) !important;
            color: var(--color-primary) !important;
        }

        .accordion-button:focus {
            box-shadow: none !important;
        }

        .accordion-body {
            padding: 0 24px 22px;
            color: var(--color-text-secondary);
            font-size: 0.9375rem;
            line-height: 1.85;
        }

        @media (max-width: 768px) {
            .accordion-button {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .accordion-body {
                padding: 0 18px 18px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding-top: 0;
            padding-bottom: 96px;
        }

        .cta-box {
            background: var(--color-bg-secondary);
            border: 1px solid var(--color-glass-border);
            border-radius: 28px;
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 18%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 70%);
            filter: blur(40px);
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -70px;
            right: 15%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 255, 163, 0.14), transparent 70%);
            filter: blur(36px);
        }

        .cta-box>* {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
        }

        .cta-desc {
            color: var(--color-text-secondary);
            font-size: 1rem;
            line-height: 1.9;
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding-bottom: 64px;
            }
            .cta-box {
                padding: 44px 22px;
                border-radius: 20px;
            }
            .cta-actions .btn-primary-custom,
            .cta-actions .btn-ghost-custom {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 80px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.125rem;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .footer-brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-brand-col p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.85;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 5px 0;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 6px 0;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            font-size: 0.95rem;
            width: 18px;
        }

        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0 32px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-copyright p {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 56px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                padding-bottom: 32px;
            }
            .footer-copyright {
                flex-direction: column;
                text-align: center;
                justify-content: center;
                padding-bottom: 24px;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg-primary: #0A1128;
            --color-bg-secondary: #0E1735;
            --color-primary: #00E5FF;
            --color-accent: #00FFA3;
            --color-warm: #FFB74D;
            --color-text: #F2F6FF;
            --color-text-secondary: #9BA8C7;
            --color-glass-bg: rgba(255, 255, 255, 0.06);
            --color-glass-border: rgba(255, 255, 255, 0.12);
            --radius-card: 20px;
            --radius-button: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-primary: 0 0 24px rgba(0, 229, 255, 0.35);
            --shadow-glow-accent: 0 0 24px rgba(0, 255, 163, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            background: var(--color-bg-primary);
            color: var(--color-text);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            border: none;
            font-family: inherit;
        }

        .container-xl {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            position: relative;
        }

        /* ---------- 浮动 Dock 导航 ---------- */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 24px);
            max-width: 800px;
            z-index: 1080;
            background: rgba(10, 17, 40, 0.76);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 999px;
            box-shadow: var(--shadow-card);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 20px 8px 16px;
            gap: 12px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--color-text);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: var(--transition-base);
        }

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

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            font-size: 1rem;
            box-shadow: var(--shadow-glow-primary);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: 999px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: transparent;
            color: var(--color-text-secondary);
            border: 1px solid transparent;
            transition: var(--transition-base);
        }

        .search-toggle:hover {
            color: var(--color-primary);
            border-color: rgba(0, 229, 255, 0.3);
            background: rgba(0, 229, 255, 0.08);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            font-weight: 600;
            font-size: 0.9375rem;
            box-shadow: var(--shadow-glow-accent);
            transition: var(--transition-base);
        }

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 255, 163, 0.5);
            filter: brightness(1.1);
        }

        .nav-cta-btn:focus-visible,
        .search-toggle:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 2px;
        }

        /* ---------- 按钮 ---------- */
        .btn-custom-primary,
        .btn-custom-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-button);
            font-size: 1rem;
            font-weight: 600;
            border: none;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-custom-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            box-shadow: var(--shadow-glow-accent);
        }

        .btn-custom-primary:hover {
            transform: translateY(-2px);
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(0, 255, 163, 0.5);
        }

        .btn-custom-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-custom-outline:hover {
            background: rgba(0, 229, 255, 0.1);
            color: var(--color-primary);
            transform: translateY(-2px);
        }

        .btn-custom-outline.btn-on-light {
            border-color: #16324F;
            color: #16324F;
        }

        .btn-custom-outline.btn-on-light:hover {
            background: rgba(22, 50, 79, 0.08);
            color: #0A1128;
        }

        .btn-custom-primary:focus-visible,
        .btn-custom-outline:focus-visible,
        .accordion-button:focus-visible {
            outline: 2px solid var(--color-warm);
            outline-offset: 2px;
        }

        /* ---------- 分类页 Banner（浅色，与 Hero 深色形成对比） ---------- */
        .category-banner {
            position: relative;
            padding: 170px 0 100px;
            background: linear-gradient(120deg, rgba(238, 245, 255, 0.98), rgba(214, 229, 252, 0.95)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #0A1128;
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 70%);
            pointer-events: none;
        }

        .category-banner::after {
            content: "";
            position: absolute;
            bottom: -160px;
            left: 20%;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 255, 163, 0.14), transparent 70%);
            pointer-events: none;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.875rem;
            color: #3B4C6B;
            margin-bottom: 22px;
        }

        .banner-breadcrumb a {
            color: #16324F;
            font-weight: 500;
            transition: var(--transition-base);
        }

        .banner-breadcrumb a:hover {
            color: #008DA6;
        }

        .banner-breadcrumb .sep {
            color: #7A8EAA;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #0A1128;
            color: var(--color-primary);
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 7px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            box-shadow: 0 6px 20px rgba(10, 17, 40, 0.2);
        }

        .banner-title {
            font-size: clamp(2rem, 5vw, 3.25rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: #0A1128;
            margin-bottom: 20px;
            max-width: 760px;
            animation: fadeUp 0.6s ease 0.1s both;
        }

        .banner-desc {
            font-size: 1.0625rem;
            line-height: 1.9;
            color: #2C3D5C;
            max-width: 680px;
            margin-bottom: 32px;
            animation: fadeUp 0.6s ease 0.2s both;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            animation: fadeUp 0.6s ease 0.3s both;
        }

        .banner-trust {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            color: #3B4C6B;
            font-size: 0.875rem;
            font-weight: 500;
            animation: fadeUp 0.6s ease 0.4s both;
        }

        .banner-trust .dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ---------- 通用 Section 头 ---------- */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.08);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 8px rgba(0, 255, 163, 0.7);
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-sub {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 620px;
            line-height: 1.8;
        }

        .section-head {
            margin-bottom: 44px;
        }

        /* ---------- 服务分类卡片墙 ---------- */
        .section-services {
            background: var(--color-bg-primary);
            padding: 96px 0 48px;
        }

        .service-card {
            height: 100%;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
        }

        .service-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-6px);
        }

        .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

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

        .card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(10, 17, 40, 0.35));
        }

        .card-body {
            padding: 26px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-warm);
            background: rgba(255, 183, 77, 0.1);
            border: 1px solid rgba(255, 183, 77, 0.25);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .card-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--color-text-secondary);
            flex: 1;
            margin-bottom: 18px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-primary);
            transition: var(--transition-base);
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover {
            color: var(--color-accent);
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ---------- 服务亮点 2+1 不对称 ---------- */
        .section-highlights {
            background: var(--color-bg-secondary);
            padding: 96px 0;
        }

        .highlight-card {
            height: 100%;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            padding: 32px 30px;
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
        }

        .highlight-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .highlight-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(0, 255, 163, 0.15));
            color: var(--color-primary);
            font-size: 1.4rem;
            border: 1px solid rgba(0, 229, 255, 0.25);
            margin-bottom: 22px;
        }

        .highlight-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .highlight-card p {
            font-size: 0.9375rem;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 0;
        }

        .highlight-wide {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
        }

        .highlight-wide:hover {
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .highlight-wide .wide-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .highlight-wide .wide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .highlight-wide:hover .wide-img img {
            transform: scale(1.04);
        }

        .highlight-wide .wide-body {
            padding: 40px 38px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .highlight-wide .wide-body h3 {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .highlight-wide .wide-body p {
            font-size: 0.9375rem;
            line-height: 1.85;
            color: var(--color-text-secondary);
            margin-bottom: 22px;
        }

        .highlight-wide .wide-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: var(--transition-base);
        }

        .highlight-wide .wide-link i {
            transition: transform 0.3s ease;
        }

        .highlight-wide .wide-link:hover {
            color: var(--color-accent);
        }

        .highlight-wide .wide-link:hover i {
            transform: translateX(4px);
        }

        /* ---------- 使用路径流程 ---------- */
        .section-path {
            background: var(--color-bg-primary);
            padding: 96px 0;
        }

        .path-list {
            display: flex;
            flex-direction: column;
            gap: 32px;
            padding-top: 8px;
        }

        .path-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .path-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: "Inter", var(--font-sans);
            line-height: 1.2;
            min-width: 48px;
        }

        .path-item h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .path-item p {
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--color-text-secondary);
            margin-bottom: 0;
        }

        .path-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-glass-border);
            box-shadow: var(--shadow-card);
        }

        .path-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        .path-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(10, 17, 40, 0.2), rgba(10, 17, 40, 0.6));
        }

        .path-float {
            position: absolute;
            left: 20px;
            bottom: 20px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(10, 17, 40, 0.72);
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: 999px;
            padding: 10px 20px;
            color: var(--color-text);
            font-size: 0.875rem;
            font-weight: 500;
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
        }

        .path-float .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 10px rgba(0, 255, 163, 0.8);
        }

        /* ---------- 数据条 ---------- */
        .section-stats {
            background: var(--color-bg-secondary);
            padding: 72px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .stat-card {
            text-align: center;
            padding: 30px 20px;
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card);
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
        }

        .stat-card:hover {
            border-color: rgba(0, 229, 255, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .stat-num {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--color-text);
            font-family: "Inter", var(--font-sans);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* ---------- FAQ ---------- */
        .section-faq {
            background: var(--color-bg-primary);
            padding: 96px 0;
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-glass-bg);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
        }

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }

        .faq-item:has(.accordion-button:not(.collapsed)) {
            border-color: 1px solid var(--color-primary);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.12);
        }

        .faq-item .accordion-button {
            background: transparent;
            color: var(--color-text);
            font-size: 1rem;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
        }

        .faq-item .accordion-button::after {
            background-image: none;
            content: "\F64D";
            font-family: "bootstrap-icons";
            font-size: 1.15rem;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: var(--transition-base);
        }

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

        .faq-item .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: rgba(0, 229, 255, 0.05);
        }

        .faq-item .accordion-body {
            color: var(--color-text-secondary);
            font-size: 0.9375rem;
            line-height: 1.85;
            padding: 4px 24px 24px;
        }

        /* ---------- CTA ---------- */
        .section-cta {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
        }

        .cta-card {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(0, 255, 163, 0.06)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            padding: 72px 32px;
            box-shadow: var(--shadow-card);
        }

        .cta-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 17, 40, 0.75), rgba(10, 17, 40, 0.9));
            z-index: 1;
        }

        .cta-card > * {
            position: relative;
            z-index: 2;
        }

        .cta-card h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .cta-card p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--color-bg-secondary);
            padding: 80px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .footer-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #0A1128;
            font-size: 1rem;
            box-shadow: var(--shadow-glow-primary);
        }

        .footer-brand-col p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin-bottom: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 18px;
        }

        .footer-link {
            display: block;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 5px 0;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 5px 0;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            margin-top: 4px;
        }

        .footer-copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            margin-bottom: 0;
        }

        .footer-copyright p {
            margin-bottom: 0;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }

            .footer-brand-col {
                grid-column: 1 / -1;
            }

            .category-banner {
                padding: 140px 0 80px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 76px;
            }

            .site-nav {
                top: auto;
                bottom: 12px;
                left: 12px;
                right: 12px;
                transform: none;
                width: auto;
                max-width: none;
                border-radius: 999px;
            }

            .nav-inner {
                padding: 6px 10px 6px 12px;
                gap: 8px;
                height: 56px;
            }

            .brand-text {
                display: none;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
            }

            .nav-links {
                gap: 0;
                flex: 1;
                justify-content: center;
            }

            .nav-link {
                font-size: 0.8125rem;
                padding: 6px 10px;
            }

            .nav-cta-btn {
                width: 38px;
                height: 38px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
            }

            .nav-cta-btn span {
                display: none;
            }

            .search-toggle {
                display: none;
            }

            .category-banner {
                padding: 120px 0 64px;
            }

            .banner-title {
                font-size: 1.75rem;
            }

            .banner-desc {
                font-size: 0.96rem;
            }

            .section-services,
            .section-highlights,
            .section-path,
            .section-faq,
            .section-cta {
                padding: 64px 0;
            }

            .section-stats {
                padding: 48px 0;
            }

            .highlight-wide {
                grid-template-columns: 1fr;
            }

            .highlight-wide .wide-body {
                padding: 28px 24px;
            }

            .path-visual img {
                min-height: 220px;
            }

            .path-float {
                padding: 8px 14px;
                font-size: 0.8125rem;
            }

            .stat-card {
                padding: 20px 12px;
            }

            .stat-num {
                font-size: 1.6rem;
            }

            .faq-item .accordion-button {
                font-size: 0.9375rem;
                padding: 16px 18px;
            }

            .faq-item .accordion-body {
                padding: 0 18px 18px;
                font-size: 0.875rem;
            }

            .cta-card {
                padding: 48px 20px;
                border-radius: 20px;
            }

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

            .footer-copyright {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .banner-actions .btn-custom-primary,
            .banner-actions .btn-custom-outline {
                width: 100%;
            }

            .cta-actions .btn-custom-primary,
            .cta-actions .btn-custom-outline {
                width: 100%;
                max-width: 320px;
            }
        }

        @media (max-width: 375px) {
            .container-xl {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-link {
                font-size: 0.75rem;
                padding: 5px 7px;
            }

            .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 0.875rem;
            }
        }

        @media (min-width: 769px) and (max-width: 992px) {
            .nav-links .nav-link {
                font-size: 0.875rem;
                padding: 7px 10px;
            }

            .brand-text {
                font-size: 0.95rem;
            }

            .nav-inner {
                padding-left: 12px;
                padding-right: 14px;
            }
        }