/* roulang page: index */
:root {
            --bg-primary: #050B1A;
            --bg-secondary: #0B1730;
            --bg-deep: #030714;
            --accent-blue: #2E6BFF;
            --accent-red: #D64541;
            --accent-gold: #C9A96E;
            --text-primary: #E8EDF6;
            --text-secondary: #9DAABF;
            --text-muted: #5D6C82;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-bg-hover: rgba(255, 255, 255, 0.10);
            --glass-border-hover: rgba(255, 255, 255, 0.26);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.20);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.32);
            --shadow-blue: 0 0 24px rgba(46, 107, 255, 0.40);
            --shadow-blue-hover: 0 0 40px rgba(46, 107, 255, 0.55);
            --transition: all 0.3s ease;
            --nav-h: 64px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--accent-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #5B8FFF;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        .grid-container {
            max-width: 1180px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            border: 1px solid transparent;
            line-height: 1;
            min-height: 44px;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #0A1B4D 0%, var(--accent-blue) 100%);
            color: #fff;
            box-shadow: var(--shadow-blue);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-blue-hover);
            color: #fff;
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.22);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
            min-height: 40px;
        }
        .btn-lg {
            height: 54px;
            padding: 0 38px;
            font-size: 17px;
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }

        /* ===== 命令栏导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-h);
            background: rgba(5, 11, 26, 0.80);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.30);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-h);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0A1B4D, #1E3A8A);
            border: 1px solid rgba(255, 255, 255, 0.16);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .brand-icon::before {
            content: "M";
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -1px;
        }
        .brand-icon::after {
            content: "";
            position: absolute;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.65) 0%, transparent 70%);
            top: -6px;
            right: -6px;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: 48px;
        }
        .nav-link {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            position: relative;
            padding: 6px 2px;
            transition: var(--transition);
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.3s ease;
            border-radius: 2px;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: #fff;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .command-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 8px;
            height: 40px;
            padding: 0 14px;
            width: 180px;
            transition: var(--transition);
        }
        .command-search:focus-within {
            border-color: var(--accent-blue);
            background: rgba(255, 255, 255, 0.09);
            width: 240px;
            box-shadow: 0 0 0 3px rgba(46, 107, 255, 0.20);
        }
        .command-search i {
            color: var(--text-muted);
            font-size: 14px;
            margin-right: 8px;
        }
        .command-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 14px;
            width: 100%;
        }
        .command-search input::placeholder {
            color: var(--text-muted);
        }
        .icon-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        .mobile-menu {
            position: fixed;
            top: var(--nav-h);
            left: 0;
            width: 100%;
            height: calc(100vh - var(--nav-h));
            background: rgba(5, 11, 26, 0.98);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            display: flex;
            flex-direction: column;
            padding: 32px 24px;
            gap: 8px;
            transform: translateX(100%);
            transition: transform 0.4s ease;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-menu.active {
            transform: translateX(0);
        }
        .mobile-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            height: 48px;
            padding: 0 16px;
            margin-bottom: 24px;
        }
        .mobile-search i {
            color: var(--text-muted);
            margin-right: 10px;
        }
        .mobile-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 16px;
            width: 100%;
        }
        .mobile-search input::placeholder {
            color: var(--text-muted);
        }
        .mobile-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-secondary);
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            text-decoration: none;
            display: block;
        }
        .mobile-link.active {
            color: #fff;
        }
        .mobile-actions {
            margin-top: 32px;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .mobile-actions .btn {
            flex: 1;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            min-height: 100svh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-h);
            overflow: hidden;
            background: var(--bg-primary);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(5, 11, 26, 0.70) 0%, rgba(5, 11, 26, 0.85) 50%, rgba(5, 11, 26, 0.95) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 48px;
            padding-bottom: 80px;
        }
        .hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            color: #fff;
            max-width: 560px;
            margin-bottom: 20px;
        }
        .hero h1 .highlight {
            color: var(--accent-gold);
            position: relative;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 480px;
            line-height: 1.6;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-visual {
            position: relative;
            text-align: center;
        }
        .hero-visual img {
            max-width: 320px;
            margin: 0 auto;
            border-radius: 24px;
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.50), 0 0 60px rgba(46, 107, 255, 0.20);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transform: perspective(1200px) rotateY(-8deg) rotateZ(2deg);
        }
        .hero-visual::before {
            content: "";
            position: absolute;
            top: 20%;
            left: 10%;
            width: 80%;
            height: 60%;
            background: radial-gradient(circle, rgba(46, 107, 255, 0.20) 0%, transparent 70%);
            filter: blur(40px);
            z-index: -1;
        }
        .scroll-indicator {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            color: var(--text-muted);
            font-size: 18px;
            z-index: 5;
            animation: scrollPulse 2s ease-in-out infinite;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        @keyframes scrollPulse {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateX(-50%) translateY(8px);
                opacity: 1;
            }
        }

        /* ===== 信任数据条 ===== */
        .stats-section {
            background: var(--bg-secondary);
            padding: 32px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 12px;
        }
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-number span {
            color: var(--accent-gold);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== 卖点三连 ===== */
        .features-section {
            padding: 96px 0;
            background: var(--bg-primary);
        }
        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: var(--glass-border-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(46, 107, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--accent-blue);
            font-size: 24px;
            transition: var(--transition);
            border: 1px solid rgba(46, 107, 255, 0.18);
        }
        .feature-card:hover .feature-icon {
            background: rgba(201, 169, 110, 0.10);
            color: var(--accent-gold);
            border-color: rgba(201, 169, 110, 0.25);
            box-shadow: 0 0 24px rgba(201, 169, 110, 0.20);
        }
        .feature-card h3 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 场景演示 ===== */
        .scenario-section {
            padding: 96px 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .scenario-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.10);
            box-shadow: var(--shadow-card);
        }
        .scenario-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }
        .scenario-content {
            padding: 32px 0 32px 48px;
        }
        .scenario-content h2 {
            font-size: 32px;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .scenario-content .scenario-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .scenario-list {
            list-style: none;
            margin: 0 0 32px 0;
            padding: 0;
        }
        .scenario-list li {
            position: relative;
            padding-left: 20px;
            font-size: 15px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .scenario-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-gold);
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-blue);
            font-weight: 500;
            font-size: 16px;
            text-decoration: none;
            transition: var(--transition);
        }
        .text-link:hover {
            color: var(--accent-gold);
            gap: 12px;
        }

        /* ===== 社会认同 ===== */
        .testimonials-section {
            padding: 96px 0;
            background: var(--bg-primary);
        }
        .testimonial-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .testimonial-card:hover {
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .testimonial-stars {
            color: var(--accent-gold);
            font-size: 14px;
            margin-bottom: 16px;
            letter-spacing: 4px;
        }
        .testimonial-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            flex: 1;
            margin-bottom: 20px;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), #1A3A8A);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            flex-shrink: 0;
        }
        .testimonial-meta {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .testimonial-meta .name {
            font-weight: 600;
            color: var(--text-primary);
            display: block;
        }

        /* ===== 新闻/资讯区 ===== */
        .news-section {
            padding: 96px 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
        }
        .section-head-row h2 {
            font-size: 32px;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
        }
        .view-all {
            color: var(--text-secondary);
            font-size: 14px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .view-all:hover {
            color: var(--accent-gold);
        }
        .news-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .news-card:hover {
            transform: translateY(-6px);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-hover);
        }
        .news-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(214, 69, 65, 0.15);
            border: 1px solid rgba(214, 69, 65, 0.30);
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 500;
            color: #E8837A;
            line-height: 1.6;
        }
        .news-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-title a {
            color: #fff;
            text-decoration: none;
        }
        .news-title a:hover {
            color: var(--accent-gold);
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 16px;
        }
        .news-date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .news-link {
            font-size: 14px;
            color: var(--accent-blue);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-link:hover {
            color: var(--accent-gold);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 80px 24px;
            border: 1px dashed rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.02);
        }
        .news-empty i {
            font-size: 40px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .news-empty p {
            color: var(--text-secondary);
            font-size: 16px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--bg-primary);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            transition: var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            background: none;
            width: 100%;
            text-align: left;
            padding: 0;
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-left: 0;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 96px 0;
            position: relative;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.20;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(11, 23, 48, 0.85) 0%, rgba(5, 11, 26, 0.95) 100%);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-content p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 36px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 32px;
        }
        .footer-grid {
            margin-bottom: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
        }
        .footer-brand .brand-name {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact li {
            color: var(--text-secondary);
            font-size: 14px;
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .footer-contact i {
            color: var(--text-muted);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 24px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 移动端固定转化条 ===== */
        .mobile-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: rgba(5, 11, 26, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            z-index: 1001;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.30);
        }
        .sticky-brand {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .sticky-actions {
            display: flex;
            gap: 12px;
        }
        .sticky-actions .btn {
            height: 40px;
            min-height: 40px;
            padding: 0 16px;
            font-size: 14px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
                margin-left: 24px;
            }
            .command-search {
                width: 150px;
            }
            .command-search:focus-within {
                width: 180px;
            }
            .scenario-content {
                padding-left: 24px;
            }
        }
        @media (max-width: 768px) {
            .features-section,
            .scenario-section,
            .testimonials-section,
            .news-section,
            .faq-section,
            .cta-section {
                padding: 64px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-head h2 {
                font-size: 28px;
            }
            .scenario-content {
                padding-left: 0;
                padding-top: 32px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .footer-grid {
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .main-nav {
                display: none;
            }
            .command-search {
                display: none;
            }
            .icon-btn {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-actions .btn-primary {
                display: none;
            }
            .mobile-sticky-bar {
                display: flex;
            }
            body {
                padding-bottom: 60px;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--nav-h) + 40px);
                padding-bottom: 40px;
            }
            .hero-content {
                padding-bottom: 40px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-visual {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 28px;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                margin-bottom: 32px;
            }
            .scenario-visual img {
                min-height: 220px;
            }
            .faq-question {
                font-size: 15px;
            }
            .cta-content h2 {
                font-size: 28px;
            }
            .footer-grid {
                gap: 24px;
            }
            .footer-col {
                margin-bottom: 16px;
            }
            .news-card {
                padding: 24px;
            }
            .feature-card {
                padding: 28px 24px;
            }
        }
        @media (max-width: 380px) {
            .hero h1 {
                font-size: 26px;
            }
            .btn {
                padding: 0 20px;
                font-size: 15px;
            }
            .btn-lg {
                height: 48px;
                font-size: 16px;
                padding: 0 24px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #050B1A;
            --bg-secondary: #0B1730;
            --accent-blue: #2E6BFF;
            --accent-red: #D64541;
            --accent-gold: #C9A96E;
            --text-primary: #E8EDF6;
            --text-secondary: #9DAABF;
            --text-muted: #5D6C82;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.26);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.20);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.32);
            --shadow-glow: 0 0 24px rgba(46, 107, 255, 0.40);
            --shadow-glow-hover: 0 0 40px rgba(46, 107, 255, 0.55);
            --transition-default: all 0.3s ease;
            --font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--text-primary);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .grid-container {
            max-width: 1180px;
            padding-left: 30px;
            padding-right: 30px;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            z-index: 1000;
            background: rgba(5, 11, 26, 0.80);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-default);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), #1a3f8a);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 0 16px rgba(46, 107, 255, 0.4);
            flex-shrink: 0;
        }

        .brand-icon::before {
            content: "M";
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -1px;
        }

        .brand-icon::after {
            content: "";
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            background: radial-gradient(circle, var(--accent-gold) 0%, transparent 70%);
            border-radius: 50%;
            opacity: 0.7;
        }

        .brand-name {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
            padding: 0 24px;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.3s ease;
        }

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

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

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .command-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            padding: 0 12px;
            height: 36px;
            width: 180px;
            color: var(--text-muted);
            font-size: 13px;
            cursor: pointer;
            gap: 8px;
            transition: all 0.3s ease;
        }

        .command-search:hover {
            border-color: rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
        }

        .command-search i {
            font-size: 12px;
            opacity: 0.6;
        }

        .command-search span {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            min-height: 44px;
            padding: 0 24px;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            line-height: 1.4;
            outline: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #1e4fcf 0%, var(--accent-blue) 60%, #4a8bff 100%);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-hover);
            color: #fff;
            background: linear-gradient(135deg, #2a5fd9 0%, #3a78ff 60%, #5c98ff 100%);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(46, 107, 255, 0.3);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .btn-small {
            min-height: 36px;
            padding: 0 18px;
            font-size: 14px;
        }

        .header-cta {
            min-height: 36px;
            padding: 0 18px;
            font-size: 14px;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== 移动端抽屉菜单 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(5, 11, 26, 0.97);
            backdrop-filter: blur(20px);
            z-index: 9999;
            padding: 80px 24px 32px;
            flex-direction: column;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }

        .drawer-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            padding: 0 14px;
            height: 48px;
            gap: 10px;
            margin-bottom: 28px;
            color: var(--text-muted);
        }

        .drawer-search i {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .drawer-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 15px;
            width: 100%;
            height: 46px;
        }

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

        .drawer-links {
            display: flex;
            flex-direction: column;
            gap: 20px;
            flex: 1;
        }

        .drawer-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 8px 0;
            transition: color 0.3s;
        }

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

        .drawer-link.active {
            color: var(--accent-gold);
        }

        .drawer-cta {
            display: flex;
            gap: 14px;
        }

        .drawer-cta .btn {
            flex: 1;
        }

        .drawer-close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
        }

        .drawer-close:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        /* ===== Hero ===== */
        .category-hero {
            padding: 160px 0 80px;
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(5, 11, 26, 0.60) 0%, rgba(5, 11, 26, 0.88) 60%, rgba(5, 11, 26, 0.96) 100%);
        }

        .category-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.3s;
        }

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

        .breadcrumb i {
            font-size: 10px;
            opacity: 0.5;
        }

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

        .hero-title {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            max-width: 720px;
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }

        /* ===== 内容区块通用 ===== */
        .section {
            padding: 96px 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(201, 169, 110, 0.12);
            border: 1px solid rgba(201, 169, 110, 0.3);
            border-radius: var(--radius-pill);
            color: var(--accent-gold);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ===== 图文交替区块 ===== */
        .split-block {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
        }

        .split-block:last-child {
            margin-bottom: 0;
        }

        .split-block.reverse {
            flex-direction: row-reverse;
        }

        .split-media {
            flex: 0 0 50%;
            position: relative;
        }

        .split-media img {
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: var(--shadow-card);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }

        .split-media:hover img {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .split-media::after {
            content: "";
            position: absolute;
            inset: -12px;
            background: radial-gradient(ellipse at center, rgba(46, 107, 255, 0.10) 0%, transparent 70%);
            pointer-events: none;
            z-index: -1;
        }

        .split-content {
            flex: 1;
        }

        .split-content h3 {
            font-size: 26px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .split-content p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .split-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .split-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .split-list li::before {
            content: "";
            width: 8px;
            height: 8px;
            background: var(--accent-gold);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 10px;
            box-shadow: 0 0 8px rgba(201, 169, 110, 0.5);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-blue);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        .text-link:hover {
            color: var(--text-primary);
            gap: 12px;
        }

        .text-link i {
            font-size: 13px;
        }

        /* ===== 产品参数卡片 ===== */
        .specs-section {
            padding: 96px 0;
        }

        .specs-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .spec-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            backdrop-filter: blur(20px);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .spec-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(201, 169, 110, 0.5), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .spec-card:hover {
            transform: translateY(-8px);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-hover);
        }

        .spec-card:hover::before {
            opacity: 1;
        }

        .spec-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(46, 107, 255, 0.15);
            border: 1px solid rgba(46, 107, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--accent-blue);
            font-size: 20px;
            transition: all 0.3s ease;
        }

        .spec-card:hover .spec-icon {
            color: var(--accent-gold);
            box-shadow: 0 0 20px rgba(201, 169, 110, 0.3);
        }

        .spec-card h4 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .spec-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== 对比表格 ===== */
        .compare-section {
            padding: 96px 0;
        }

        .compare-table-wrapper {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 48px;
            backdrop-filter: blur(20px);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
        }

        .compare-table thead {
            background: rgba(46, 107, 255, 0.1);
        }

        .compare-table th {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .compare-table td {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

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

        .compare-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
        }

        .faq-list {
            max-width: 780px;
            margin: 48px auto 0;
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: 4px 0;
            transition: color 0.3s;
            outline: none;
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.16);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: transform 0.3s ease, border-color 0.3s, color 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        .faq-answer {
            display: none;
            padding: 12px 0 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            display: block;
            animation: fadeSlideIn 0.3s ease;
        }

        @keyframes fadeSlideIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(5, 11, 26, 0.82);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #03070f;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
        }

        .footer-grid {
            gap: 24px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
        }

        .footer-brand .brand-icon::before {
            font-size: 18px;
        }

        .footer-brand .brand-name {
            font-size: 18px;
            font-weight: 600;
        }

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

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s;
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-contact li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact li i {
            color: var(--accent-blue);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== 移动端底部转化条 ===== */
        .mobile-cta-bar {
            display: none;
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .grid-container {
                padding-left: 24px;
                padding-right: 24px;
            }

            .main-nav {
                gap: 20px;
                padding: 0 16px;
            }

            .command-search {
                width: 140px;
            }

            .header-cta {
                display: none;
            }

            .split-block {
                gap: 40px;
            }

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

        @media screen and (max-width: 768px) {
            .section {
                padding: 72px 0;
            }

            .main-nav {
                display: none;
            }

            .icon-btn {
                display: none;
            }

            .command-search {
                display: none;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .mobile-drawer {
                display: flex;
            }

            .split-block,
            .split-block.reverse {
                flex-direction: column;
                gap: 32px;
            }

            .split-media {
                flex: 0 0 auto;
                width: 100%;
            }

            .split-media img {
                width: 100%;
            }

            .compare-table-wrapper {
                overflow-x: auto;
            }

            .compare-table th,
            .compare-table td {
                padding: 12px 14px;
                white-space: nowrap;
                font-size: 13px;
            }

            .hero-title {
                font-size: 32px;
            }

            .section-title {
                font-size: 28px;
            }

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

            .footer-grid {
                gap: 32px;
            }
        }

        @media screen and (max-width: 640px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section {
                padding: 48px 0;
            }

            .category-hero {
                padding: 120px 0 56px;
                background-attachment: scroll;
            }

            .hero-title {
                font-size: 28px;
                line-height: 1.35;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-cta-group {
                flex-direction: row;
                width: 100%;
            }

            .hero-cta-group .btn {
                flex: 1;
                padding: 0 16px;
                font-size: 14px;
            }

            .section-title {
                font-size: 24px;
            }

            .split-content h3 {
                font-size: 22px;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .cta-inner .btn {
                width: 100%;
            }

            .mobile-cta-bar {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                height: 60px;
                background: rgba(5, 11, 26, 0.95);
                backdrop-filter: blur(16px);
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                z-index: 999;
                align-items: center;
                justify-content: space-between;
                padding: 0 16px;
                gap: 12px;
            }

            .mobile-cta-brand {
                font-size: 14px;
                font-weight: 500;
                color: var(--text-primary);
                white-space: nowrap;
                flex-shrink: 0;
            }

            .mobile-cta-actions {
                display: flex;
                gap: 10px;
                flex: 1;
                justify-content: flex-end;
            }

            .mobile-cta-actions .btn {
                min-height: 40px;
                padding: 0 14px;
                font-size: 13px;
                flex: 1;
                max-width: 120px;
            }

            .site-footer {
                padding-bottom: 76px;
            }

            .footer-col {
                margin-bottom: 8px;
            }
        }

        @media screen and (max-width: 480px) {
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-cta-group .btn {
                width: 100%;
            }

            .specs-grid {
                gap: 16px;
            }

            .spec-card {
                padding: 24px 20px;
            }

            .split-list li {
                font-size: 14px;
            }
        }

        /* ===== 滚动动画提示 ===== */
        .scroll-hint {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            color: var(--text-muted);
            font-size: 18px;
            animation: bobDown 2s ease-in-out infinite;
            z-index: 2;
            pointer-events: none;
        }

        @keyframes bobDown {
            0%,
            100% {
                transform: translate(-50%, 0);
                opacity: 0.5;
            }
            50% {
                transform: translate(-50%, 8px);
                opacity: 1;
            }
        }

/* roulang page: article */
:root {
    --bg-primary: #050B1A;
    --bg-secondary: #0B1730;
    --bg-deep: #030814;
    --primary: #2E6BFF;
    --primary-light: #5B8CFF;
    --accent-red: #D64541;
    --accent-gold: #C9A96E;
    --text-primary: #E8EDF6;
    --text-secondary: #9DAABF;
    --text-muted: #5D6C82;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-border-hover: rgba(255, 255, 255, 0.26);
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-pill: 999px;
    --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.20);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.32);
    --transition: 0.3s ease;
    --header-h: 64px;
    --font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.grid-container { max-width: 1180px; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: linear-gradient(135deg, #1D4ED8 0%, var(--primary) 60%, #5B8CFF 100%);
    color: #fff;
    box-shadow: 0 0 24px rgba(46, 107, 255, 0.40);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(46, 107, 255, 0.55);
    color: #fff;
}
.btn-glass {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    backdrop-filter: blur(12px);
}
.btn-glass:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.20);
    color: var(--text-primary);
    transform: translateY(-2px);
}
.btn-small { min-height: 36px; padding: 0 16px; font-size: 14px; }
.btn-block { width: 100%; }
.btn:focus, .nav-link:focus, .command-search:focus-within, .drawer-close:focus, .nav-burger:focus {
    outline: 2px solid var(--primary-light);
    outline-offset: 3px;
}

/* ---------- 标签 ---------- */
.tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(214, 69, 65, 0.15);
    border: 1px solid rgba(214, 69, 65, 0.30);
    color: #E88380;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-h);
    background: rgba(5, 11, 26, 0.80);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
}
.nav-container {
    width: 100%;
    max-width: 1280px;
    padding-left: 30px;
    padding-right: 30px;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #1D3A8A);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    box-shadow: 0 0 16px rgba(46, 107, 255, 0.40);
}
.brand-text { font-size: 18px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.3px; white-space: nowrap; }
.nav-center { display: flex; align-items: center; justify-content: center; flex: 1; }
.main-nav { display: flex; align-items: center; }
.nav-link {
    position: relative;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 2px;
    margin: 0 14px;
    transition: color 0.3s;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transform: translateX(-50%);
    transition: width 0.3s;
    border-radius: 2px;
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.command-search {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 8px;
    padding: 6px 12px;
    width: 160px;
    transition: width 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.command-search:focus-within { width: 220px; border-color: var(--primary); background: rgba(255, 255, 255, 0.08); }
.command-search i { color: var(--text-muted); font-size: 14px; margin-right: 8px; }
.command-search input { background: transparent; border: none; outline: none; color: var(--text-primary); font-size: 13px; width: 100%; }
.command-search input::placeholder { color: var(--text-muted); }
.nav-icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-icon-btn:hover { background: rgba(255, 255, 255, 0.10); color: var(--text-primary); border-color: rgba(255, 255, 255, 0.18); }
.nav-cta { margin-left: 4px; }
.nav-burger { display: none; background: none; border: none; color: var(--text-primary); font-size: 20px; cursor: pointer; padding: 8px; }

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background: rgba(5, 11, 26, 0.98);
    z-index: 2000;
    padding: 24px;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(20px);
}
.mobile-drawer.open { right: 0; }
.drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.drawer-close { background: none; border: none; color: var(--text-secondary); font-size: 22px; cursor: pointer; padding: 4px; }
.drawer-search {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 24px;
}
.drawer-search i { color: var(--text-muted); margin-right: 10px; }
.drawer-search input { background: transparent; border: none; outline: none; color: var(--text-primary); font-size: 15px; width: 100%; }
.drawer-nav { display: flex; flex-direction: column; flex: 1; }
.drawer-link {
    display: block;
    padding: 14px 0;
    font-size: 20px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: color 0.3s;
}
.drawer-link:hover, .drawer-link.active { color: var(--text-primary); }
.drawer-cta { margin-top: 24px; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb i { font-size: 10px; color: var(--text-muted); }
.breadcrumb span { color: var(--text-secondary); }

/* ---------- 文章头部 ---------- */
.article-hero {
    position: relative;
    padding: 80px 0 40px;
    background: linear-gradient(180deg, rgba(5, 11, 26, 0.90) 0%, var(--bg-primary) 100%), url("/assets/images/backpic/back-2.png") center/cover no-repeat;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.article-hero-inner { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.article-title {
    font-size: 38px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { font-size: 14px; color: var(--text-muted); }

/* ---------- 正文区域 ---------- */
.article-section { padding: 48px 0 64px; }
.article-container { max-width: 780px; }
.article-body {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px 44px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-default);
}
.article-body h2 {
    font-size: 26px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 40px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 12px;
}
.article-body p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}
.article-body ul, .article-body ol {
    padding-left: 16px;
    margin-bottom: 24px;
    line-height: 2;
    color: var(--text-secondary);
}
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
    border-left: 3px solid var(--accent-gold);
    background: rgba(201, 169, 110, 0.06);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
    margin: 24px 0;
}
.article-body img { max-width: 100%; border-radius: 12px; margin: 24px auto; display: block; }
.article-body figure { margin: 24px 0; }
.article-body figcaption { text-align: center; font-size: 14px; color: var(--text-muted); margin-top: 8px; }
.article-body a { color: var(--primary-light); text-decoration: underline; }
.article-body a:hover { color: var(--text-primary); }

/* ---------- 文章空状态 ---------- */
.article-empty {
    text-align: center;
    padding: 80px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
}
.article-empty i { font-size: 48px; color: var(--text-muted); margin-bottom: 16px; }
.article-empty p { font-size: 18px; color: var(--text-secondary); margin-bottom: 24px; }

/* ---------- 相关推荐 ---------- */
.related-section {
    padding: 64px 0 48px;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}
.section-head h2 { font-size: 28px; font-weight: 600; color: var(--text-primary); }
.section-link { color: var(--text-secondary); font-size: 14px; transition: color 0.3s; }
.section-link:hover { color: var(--primary-light); }
.related-card { margin-bottom: 24px; }
.related-card-inner {
    display: block;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
}
.related-card-inner:hover {
    transform: translateY(-6px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-hover);
    background: rgba(255, 255, 255, 0.05);
}
.related-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-deep); }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card-inner:hover .related-thumb img { transform: scale(1.05); }
.related-thumb .tag { position: absolute; top: 12px; left: 12px; z-index: 1; }
.related-body { padding: 20px; }
.related-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-foot { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-muted); }
.related-foot span:last-child { color: var(--primary-light); font-weight: 500; }

/* ---------- CTA 区域 ---------- */
.article-cta { padding: 48px 0 96px; }
.cta-box {
    text-align: center;
    background: linear-gradient(135deg, rgba(46, 107, 255, 0.12), rgba(5, 11, 26, 0.40));
    border: 1px solid rgba(46, 107, 255, 0.25);
    border-radius: 20px;
    padding: 56px 32px;
    position: relative;
    overflow: hidden;
}
.cta-box h2 { font-size: 28px; font-weight: 600; color: var(--text-primary); margin-bottom: 12px; }
.cta-box p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 28px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer {
    background: var(--bg-deep);
    padding: 64px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid { gap: 32px 0; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.6; color: var(--text-muted); max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col li a { font-size: 14px; color: var(--text-secondary); transition: color 0.3s; text-decoration: none; }
.footer-col li a:hover { color: var(--text-primary); }
.footer-contact li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); }
.footer-contact i { color: var(--accent-gold); width: 16px; text-align: center; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 48px;
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p { font-size: 13px; color: var(--text-muted); margin: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .command-search { width: 140px; }
    .command-search:focus-within { width: 190px; }
    .nav-link { margin: 0 10px; font-size: 14px; }
    .footer-grid .cell { margin-bottom: 24px; }
    .article-hero { padding: 60px 0 32px; }
    .article-body { padding: 32px 28px; }
}
@media (max-width: 640px) {
    .nav-container { padding-left: 16px; padding-right: 16px; }
    .main-nav { display: none; }
    .command-search { display: none; }
    .nav-icon-btn { display: none; }
    .nav-cta { display: none; }
    .nav-burger { display: inline-flex; }
    .nav-inner { gap: 8px; }
    .brand-text { font-size: 16px; }
    .article-hero { padding: 48px 0 28px; }
    .article-container { padding-left: 16px; padding-right: 16px; }
    .article-title { font-size: 28px; }
    .article-meta { gap: 12px; }
    .article-body { padding: 24px 20px; border-radius: 12px; }
    .related-card { margin-bottom: 16px; }
    .related-section { padding: 48px 0 32px; }
    .section-head h2 { font-size: 24px; }
    .article-cta { padding: 32px 0 64px; }
    .cta-box { padding: 40px 20px; }
    .cta-box h2 { font-size: 24px; }
    .footer-grid { gap: 24px 0; }
    .site-footer { padding: 48px 0 0; }
}