/* roulang page: index */
:root {
            --bg-base: #0B0D13;
            --bg-surface: #131722;
            --bg-card: #181E2C;
            --bg-elevated: #202739;
            --primary: #E5484D;
            --primary-deep: #B91C1C;
            --accent: #2DD4BF;
            --amber: #E7B10A;
            --gradient-brand: 135deg, #B91C1C 0%, #E5484D 45%, #F07A3F 100%;
            --gradient-data: 135deg, #1F2937 0%, #374151 100%;
            --text-1: #F4F6FB;
            --text-2: #A8B0C1;
            --text-3: #6E7787;
            --border: rgba(255, 255, 255, 0.08);
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(229, 72, 77, 0.20);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --space-section: 96px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-1);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }
        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 0%, rgba(229, 72, 77, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(11, 13, 19, 0.86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            height: 64px;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-1);
            letter-spacing: .5px;
        }
        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .brand-logo .logo-mark::before {
            content: "";
            width: 14px;
            height: 14px;
            background: var(--primary);
            border-radius: 50%;
            position: absolute;
            left: 2px;
        }
        .brand-logo .logo-mark::after {
            content: "";
            width: 14px;
            height: 14px;
            background: linear-gradient(135deg, var(--primary), #F07A3F);
            transform: rotate(45deg);
            position: absolute;
            right: 2px;
            border-radius: 3px;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 12px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chips a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-2);
            transition: all .25s;
            position: relative;
        }
        .nav-chips a:hover {
            color: #fff;
        }
        .nav-chips a:hover::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-chips a.active {
            background: linear-gradient(135deg, #B91C1C 0%, #E5484D 45%, #F07A3F 100%);
            color: #fff;
            box-shadow: 0 0 18px rgba(229, 72, 77, 0.30);
        }
        .nav-chips a.active:hover::after {
            display: none;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: all .3s;
            box-shadow: 0 4px 16px rgba(229, 72, 77, 0.25);
        }
        .btn-cta:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(229, 72, 77, 0.35);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-1);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--bg-base);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            z-index: 999;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
        }
        .mobile-nav.show {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a.active {
            background: linear-gradient(135deg, #B91C1C, #E5484D);
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 13, 19, 0.92) 0%, rgba(11, 13, 19, 0.75) 50%, rgba(11, 13, 19, 0.55) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(185, 28, 28, 0.35);
            border: 1px solid rgba(229, 72, 77, 0.3);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 12px;
            font-weight: 600;
            color: #fca5a5;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero-badge i {
            font-size: 10px;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }
        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-1);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            max-width: 620px;
        }
        .hero h1 .dot {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-2);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 36px;
        }
        .hero-ctas {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: all .3s;
            box-shadow: 0 4px 20px rgba(229, 72, 77, 0.3);
        }
        .btn-primary-custom:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 28px rgba(229, 72, 77, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 10px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: var(--text-1);
            font-weight: 500;
            font-size: 15px;
            transition: all .3s;
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(229, 72, 77, 0.06);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding-left: 20px;
        }
        .hero-stat-card {
            background: rgba(24, 30, 44, 0.7);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            backdrop-filter: blur(8px);
            position: relative;
            overflow: hidden;
            transition: transform .3s, border-color .3s;
        }
        .hero-stat-card:hover {
            transform: translateY(-2px);
            border-color: rgba(229, 72, 77, 0.4);
        }
        .hero-stat-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--gradient-brand);
        }
        .hero-stat-card .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-1);
            line-height: 1.2;
            font-family: inherit;
        }
        .hero-stat-card .num span {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-left: 4px;
        }
        .hero-stat-card .label {
            font-size: 12px;
            color: var(--text-3);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-1);
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-head .section-desc {
            font-size: 13px;
            color: var(--text-3);
            letter-spacing: 1px;
        }
        .section-head .section-desc i {
            color: var(--primary);
            margin-right: 4px;
        }

        /* ===== 功能分组 ===== */
        .func-row-1 {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 24px;
            margin-bottom: 24px;
        }
        .func-row-2 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .func-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px;
            position: relative;
            transition: transform .3s, border-color .3s, box-shadow .3s;
            overflow: hidden;
        }
        .func-card:hover {
            transform: translateY(-2px);
            border-color: rgba(229, 72, 77, 0.4);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }
        .func-card .func-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            font-family: "SF Mono", "Courier New", monospace;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .func-card .func-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(229, 72, 77, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .func-card .func-icon.teal {
            background: rgba(45, 212, 191, 0.1);
            color: var(--accent);
        }
        .func-card .func-icon.amber {
            background: rgba(231, 177, 10, 0.1);
            color: var(--amber);
        }
        .func-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 8px;
        }
        .func-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .func-card .func-meta {
            border-top: 1px solid var(--border);
            padding-top: 14px;
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: auto;
        }
        .func-card .func-meta .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            color: var(--text-3);
            background: rgba(255, 255, 255, 0.03);
            padding: 4px 10px;
            border-radius: 999px;
        }
        .func-card .func-meta .badge-data i {
            color: var(--accent);
            font-size: 10px;
        }
        .func-card-lg {
            display: flex;
            flex-direction: column;
            min-height: 100%;
        }
        .func-card-sm {
            display: flex;
            flex-direction: column;
        }
        .func-card-sm h3 {
            font-size: 17px;
        }
        .func-card-center {
            background: linear-gradient(150deg, rgba(229, 72, 77, 0.08) 0%, rgba(24, 30, 44, 0.6) 40%, var(--bg-card) 100%);
            border-color: rgba(229, 72, 77, 0.15);
            position: relative;
        }
        .func-card-center::after {
            content: "核心";
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
        }

        /* ===== 使用场景 ===== */
        .scenario-wrap {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 32px;
            align-items: start;
        }
        .scenario-tabs {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .scenario-tab {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            cursor: pointer;
            border-left: 3px solid transparent;
            color: var(--text-2);
            font-size: 14px;
            font-weight: 500;
            transition: all .25s;
            background: transparent;
            text-align: left;
            border-top: none;
            border-right: none;
            border-bottom: none;
        }
        .scenario-tab i {
            font-size: 16px;
            width: 22px;
            text-align: center;
        }
        .scenario-tab:hover {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-1);
        }
        .scenario-tab.active {
            background: rgba(229, 72, 77, 0.08);
            border-left-color: var(--primary);
            color: var(--text-1);
        }
        .scenario-panel {
            display: none;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            min-height: 320px;
        }
        .scenario-panel.active {
            display: flex;
            animation: fadeSlide .4s ease;
        }
        @keyframes fadeSlide {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .scenario-panel .panel-img {
            width: 30%;
            flex-shrink: 0;
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .scenario-panel .panel-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, var(--bg-card) 0%, rgba(24, 30, 44, 0.4) 30%, rgba(24, 30, 44, 0.1) 100%);
        }
        .scenario-panel .panel-body {
            padding: 36px;
            flex: 1;
        }
        .scenario-panel .panel-body h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-1);
        }
        .scenario-panel .panel-body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
        }
        .scenario-panel .panel-body .panel-tags {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .scenario-panel .panel-body .panel-tags span {
            font-size: 12px;
            color: var(--text-2);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px 12px;
        }

        /* ===== 成功案例 ===== */
        .cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .case-card:hover {
            transform: translateY(-3px);
            border-color: rgba(229, 72, 77, 0.3);
            box-shadow: var(--shadow-card);
        }
        .case-card .case-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }
        .case-card:hover .case-img img {
            transform: scale(1.04);
        }
        .case-card .case-img .case-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: #fca5a5;
            border: 1px solid rgba(229, 72, 77, 0.3);
        }
        .case-card .case-body {
            padding: 24px;
        }
        .case-card .case-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .case-card .case-body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .case-card .case-meta {
            border-top: 1px solid var(--border);
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .case-card .case-meta .stars {
            color: var(--amber);
            font-size: 13px;
            letter-spacing: 2px;
        }
        .case-card .case-meta .level {
            font-size: 12px;
            color: var(--text-3);
            background: var(--gradient-data);
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 600;
        }

        /* ===== 资讯区 ===== */
        .news-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .news-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: padding-left .3s;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item .news-index {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            font-family: "SF Mono", monospace;
            background: rgba(229, 72, 77, 0.08);
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .news-item .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 4px;
            line-height: 1.5;
            transition: color .2s;
        }
        .news-item .news-content h4:hover {
            color: var(--primary);
        }
        .news-item .news-content p {
            font-size: 13px;
            color: var(--text-3);
            line-height: 1.6;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-tags {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
        }
        .side-tags h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-1);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-tags h3 i {
            color: var(--primary);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            font-size: 12px;
            color: var(--text-2);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 14px;
            transition: all .2s;
        }
        .tag-cloud a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .side-hot {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
        }
        .side-hot h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-1);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-hot h3 i {
            color: var(--amber);
        }
        .hot-item {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            align-items: center;
        }
        .hot-item:last-child {
            border-bottom: none;
        }
        .hot-item .rank {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            font-family: "SF Mono", monospace;
            width: 28px;
            flex-shrink: 0;
            text-align: center;
        }
        .hot-item .rank.r2 {
            color: var(--amber);
        }
        .hot-item .rank.r3 {
            color: var(--accent);
        }
        .hot-item .hot-title {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.4;
            flex: 1;
        }
        .hot-item .hot-title:hover {
            color: var(--primary);
        }
        .hot-item .hot-heat {
            font-size: 12px;
            color: var(--text-3);
            flex-shrink: 0;
            background: rgba(255, 255, 255, 0.04);
            padding: 2px 8px;
            border-radius: 999px;
        }

        /* ===== 价格 ===== */
        .price-switch {
            display: inline-flex;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px;
            gap: 2px;
            margin-bottom: 40px;
        }
        .price-switch button {
            background: transparent;
            border: none;
            padding: 8px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-2);
            cursor: pointer;
            transition: all .25s;
        }
        .price-switch button.active {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }
        .price-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .price-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            position: relative;
            transition: transform .3s, border-color .3s, box-shadow .3s;
            display: flex;
            flex-direction: column;
        }
        .price-card:hover {
            transform: translateY(-3px);
            border-color: rgba(255, 255, 255, 0.14);
            box-shadow: var(--shadow-card);
        }
        .price-card.recommended {
            border: 1px solid rgba(229, 72, 77, 0.5);
            box-shadow: 0 0 32px rgba(229, 72, 77, 0.12);
        }
        .price-card.recommended:hover {
            box-shadow: 0 0 36px rgba(229, 72, 77, 0.2);
        }
        .price-card .rec-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--amber);
            color: #1a1a1a;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .price-card .plan-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-2);
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .price-card .price-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-1);
            line-height: 1;
            margin-bottom: 4px;
        }
        .price-card .price-num span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-3);
            margin-left: 4px;
        }
        .price-card .price-unit {
            font-size: 13px;
            color: var(--text-3);
            margin-bottom: 24px;
        }
        .price-card .plan-features {
            list-style: none;
            padding: 0;
            margin: 0 0 32px;
            flex: 1;
        }
        .price-card .plan-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-2);
            padding: 8px 0;
        }
        .price-card .plan-features li i {
            color: var(--accent);
            font-size: 12px;
            margin-top: 4px;
        }
        .price-card .btn-price {
            display: block;
            text-align: center;
            padding: 12px 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            transition: all .3s;
        }
        .price-card .btn-price.btn-solid {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 16px rgba(229, 72, 77, 0.25);
        }
        .price-card .btn-price.btn-solid:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
        }
        .price-card .btn-price.btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-1);
        }
        .price-card .btn-price.btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(229, 72, 77, 0.06);
        }
        .price-note {
            text-align: center;
            font-size: 12px;
            color: var(--text-3);
            margin-top: 24px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item .accordion-button {
            background: transparent;
            box-shadow: none;
            padding: 18px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-1);
            border-left: 3px solid transparent;
            transition: all .25s;
        }
        .faq-item .accordion-button:hover {
            color: var(--primary);
        }
        .faq-item .accordion-button:not(.collapsed) {
            color: var(--primary);
            border-left-color: var(--primary);
            background: rgba(229, 72, 77, 0.03);
            box-shadow: none;
        }
        .faq-item .accordion-button::after {
            background-image: none;
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--text-2);
            font-size: 16px;
            transition: transform .3s;
        }
        .faq-item .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .accordion-body {
            padding: 4px 16px 20px;
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: radial-gradient(ellipse at center, rgba(229, 72, 77, 0.12) 0%, rgba(11, 13, 19, 0.9) 70%);
            text-align: center;
            border-top: 1px solid var(--border);
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-1);
            margin-bottom: 28px;
        }
        .cta-form {
            display: flex;
            justify-content: center;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            min-width: 260px;
            background: #0D1017;
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 10px;
            padding: 14px 18px;
            color: var(--text-1);
            font-size: 14px;
            outline: none;
            transition: all .3s;
        }
        .cta-form input::placeholder {
            color: var(--text-3);
            font-size: 13px;
        }
        .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(229, 72, 77, 0.15);
        }
        .cta-form button {
            background: var(--gradient-brand);
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 14px 32px;
            border-radius: 10px;
            cursor: pointer;
            transition: all .3s;
            box-shadow: 0 4px 16px rgba(229, 72, 77, 0.25);
        }
        .cta-form button:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(229, 72, 77, 0.35);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080A10;
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--primary), var(--amber)) 1;
            padding-top: 56px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-3);
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-1);
            letter-spacing: 1px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-2);
            transition: color .2s, padding-left .2s;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-col.contact-col p {
            font-size: 14px;
            color: var(--text-2);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col.contact-col p i {
            color: var(--primary);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-3);
            margin: 0;
        }
        .footer-bottom .copyright a {
            color: var(--text-3);
        }
        .footer-bottom .copyright a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .func-row-1 {
                grid-template-columns: 1fr;
            }
            .func-row-2 {
                grid-template-columns: 1fr 1fr;
            }
            .func-card-lg {
                min-height: auto;
            }
        }
        @media (max-width: 992px) {
            :root {
                --space-section: 72px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .nav-chips {
                margin-left: 4px;
            }
            .header-cta .btn-cta span {
                display: none;
            }
            .header-cta .btn-cta {
                padding: 10px 14px;
                font-size: 14px;
            }
            .hero {
                min-height: auto;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-stats {
                flex-direction: row;
                flex-wrap: wrap;
                padding-left: 0;
                margin-top: 24px;
            }
            .hero-stat-card {
                flex: 1 1 30%;
                min-width: 140px;
            }
            .scenario-wrap {
                grid-template-columns: 1fr;
            }
            .scenario-tabs {
                flex-direction: row;
                overflow-x: auto;
                gap: 8px;
                padding-bottom: 8px;
            }
            .scenario-tab {
                border-left: none;
                border-bottom: 3px solid transparent;
                padding: 12px 16px;
                white-space: nowrap;
                flex-shrink: 0;
            }
            .scenario-tab.active {
                border-left: none;
                border-bottom-color: var(--primary);
                background: rgba(229, 72, 77, 0.06);
            }
            .scenario-panel .panel-img {
                width: 40%;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .news-wrap {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .price-grid {
                gap: 16px;
            }
            .price-card {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
            .site-header {
                height: 60px;
            }
            .header-inner {
                height: 60px;
            }
            .brand-logo {
                font-size: 17px;
            }
            .mobile-menu-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-chips {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .hero-ctas {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                justify-content: center;
                width: 100%;
            }
            .hero-stats {
                flex-direction: column;
            }
            .hero-stat-card {
                min-width: 100%;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .func-row-2 {
                grid-template-columns: 1fr;
            }
            .func-card {
                padding: 22px;
            }
            .scenario-panel {
                flex-direction: column;
            }
            .scenario-panel .panel-img {
                width: 100%;
                height: 160px;
            }
            .scenario-panel .panel-body {
                padding: 24px;
            }
            .news-sidebar {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: 1fr;
            }
            .price-card.recommended {
                order: -1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-form button {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-logo {
                font-size: 16px;
            }
            .brand-logo .logo-mark {
                width: 28px;
                height: 28px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .hero-stat-card .num {
                font-size: 22px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .case-card .case-body h3 {
                font-size: 16px;
            }
            .news-item {
                padding: 14px 0;
            }
            .news-item .news-content h4 {
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-base: #0B0D13;
            --bg-surface: #131722;
            --bg-card: #181E2C;
            --bg-elevated: #202739;
            --primary: #E5484D;
            --primary-deep: #B91C1C;
            --accent: #2DD4BF;
            --amber: #E7B10A;
            --gradient-brand: 135deg, #B91C1C 0%, #E5484D 45%, #F07A3F 100%;
            --gradient-data: 135deg, #1F2937 0%, #374151 100%;
            --text-1: #F4F6FB;
            --text-2: #A8B0C1;
            --text-3: #6E7787;
            --border: rgba(255, 255, 255, 0.08);
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(229, 72, 77, 0.20);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --space-section: 96px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-1);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }
        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse at 20% 0%, rgba(229, 72, 77, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(11, 13, 19, 0.86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            height: 64px;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-1);
            letter-spacing: .5px;
        }
        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .brand-logo .logo-mark::before {
            content: "";
            width: 14px;
            height: 14px;
            background: var(--primary);
            border-radius: 50%;
            position: absolute;
            left: 2px;
        }
        .brand-logo .logo-mark::after {
            content: "";
            width: 14px;
            height: 14px;
            background: linear-gradient(135deg, var(--primary), #F07A3F);
            transform: rotate(45deg);
            position: absolute;
            right: 2px;
            border-radius: 3px;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 12px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chips a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-2);
            transition: all .25s;
            position: relative;
        }
        .nav-chips a:hover {
            color: #fff;
        }
        .nav-chips a:hover::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-chips a.active {
            background: linear-gradient(135deg, #B91C1C 0%, #E5484D 45%, #F07A3F 100%);
            color: #fff;
            box-shadow: 0 0 18px rgba(229, 72, 77, 0.30);
        }
        .nav-chips a.active:hover::after {
            display: none;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: all .3s;
            box-shadow: 0 4px 16px rgba(229, 72, 77, 0.25);
        }
        .btn-cta:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(229, 72, 77, 0.35);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 通用区块 ===== */
        .section-block {
            padding: var(--space-section) 0;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-1);
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }
        .section-head h2::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-brand);
        }
        .section-sub {
            color: var(--text-3);
            font-size: 13px;
            margin-top: 12px;
            margin-bottom: 0;
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
            padding: 80px 0 72px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(100deg, rgba(11, 13, 19, 0.95) 0%, rgba(11, 13, 19, 0.84) 50%, rgba(11, 13, 19, 0.62) 100%),
                radial-gradient(ellipse at 80% 60%, rgba(229, 72, 77, 0.10) 0%, transparent 55%);
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-3);
            margin-bottom: 28px;
        }
        .breadcrumb-nav a {
            color: var(--text-3);
            transition: color .2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav i {
            font-size: 10px;
            opacity: .6;
        }
        .breadcrumb-nav span {
            color: var(--text-2);
        }
        .hero-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(185, 28, 28, 0.55);
            border: 1px solid rgba(229, 72, 77, 0.4);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .hero-pill i {
            font-size: 8px;
            color: var(--amber);
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-1);
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .hero-lead {
            font-size: 16px;
            color: var(--text-2);
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .hero-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-chips span {
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: rgba(19, 23, 34, 0.6);
            color: var(--text-2);
            font-size: 13px;
            transition: all .2s;
        }
        .hero-chips span:hover {
            border-color: var(--primary);
            color: #fff;
        }
        .hero-summary {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            border-left: 3px solid var(--primary);
            padding-left: 16px;
            margin-bottom: 24px;
            background: rgba(19, 23, 34, 0.35);
            border-radius: 0 12px 12px 0;
            padding: 14px 16px;
        }
        .hero-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .stat-badge {
            background: rgba(19, 23, 34, 0.85);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px 22px;
            min-width: 148px;
            position: relative;
            overflow: hidden;
            transition: border-color .3s, box-shadow .3s;
        }
        .stat-badge::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--gradient-brand);
        }
        .stat-badge:hover {
            border-color: rgba(229, 72, 77, 0.4);
            box-shadow: var(--shadow-glow);
        }
        .stat-num {
            display: block;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-1);
            line-height: 1.3;
        }
        .stat-text {
            display: block;
            font-size: 12px;
            color: var(--text-3);
            margin-top: 4px;
        }

        /* ===== 视频库结构 ===== */
        .category-features {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            position: relative;
            transition: transform .3s, border-color .3s, box-shadow .3s;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(229, 72, 77, 0.5);
            box-shadow: var(--shadow-glow);
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(229, 72, 77, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .feature-num {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(229, 72, 77, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin: 16px 0;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-1);
        }
        .feature-card p {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .feature-meta {
            border-top: 1px solid var(--border);
            padding-top: 16px;
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-3);
        }
        .feature-meta i {
            color: var(--amber);
            margin-right: 4px;
        }
        .feature-card-sm {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            height: 100%;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .feature-card-sm:hover {
            transform: translateY(-3px);
            border-color: rgba(229, 72, 77, 0.5);
            box-shadow: var(--shadow-glow);
        }
        .feature-card-sm .feature-icon {
            width: 40px;
            height: 40px;
            font-size: 17px;
            margin: 12px 0;
        }
        .feature-card-sm h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card-sm p {
            font-size: 13px;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .feature-meta-sm {
            border-top: 1px solid var(--border);
            padding-top: 12px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-3);
        }
        .feature-meta-sm i {
            color: var(--accent);
            margin-right: 3px;
        }
        .feature-compact {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            height: 100%;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .feature-compact:hover {
            transform: translateY(-3px);
            border-color: rgba(229, 72, 77, 0.5);
            box-shadow: var(--shadow-glow);
        }
        .feature-compact .feature-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
            margin: 12px 0;
            background: rgba(45, 212, 191, 0.10);
            color: var(--accent);
        }
        .feature-compact h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-compact p {
            font-size: 13px;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .feature-meta-compact {
            border-top: 1px solid var(--border);
            padding-top: 12px;
            font-size: 12px;
            color: var(--text-3);
        }
        .feature-meta-compact i {
            color: var(--amber);
            margin-right: 4px;
        }

        /* ===== 热点索引 ===== */
        .category-hot {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .hot-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .hot-card:hover {
            transform: translateY(-4px);
            border-color: rgba(229, 72, 77, 0.5);
            box-shadow: var(--shadow-glow);
        }
        .hot-card-image {
            height: 210px;
            overflow: hidden;
        }
        .hot-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }
        .hot-card:hover .hot-card-image img {
            transform: scale(1.04);
        }
        .hot-card-body {
            padding: 20px 24px 24px;
        }
        .hot-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(229, 72, 77, 0.10);
            border: 1px solid rgba(229, 72, 77, 0.2);
            color: var(--primary);
            font-weight: 500;
        }
        .tag-chip i {
            font-size: 10px;
        }
        .hot-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-1);
        }
        .hot-card p {
            color: var(--text-2);
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .hot-card-meta {
            border-top: 1px solid var(--border);
            padding-top: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-3);
        }
        .hot-card-meta .hot-level {
            color: var(--amber);
            font-weight: 600;
        }

        /* ===== 适用场景 ===== */
        .category-scenarios {
            background: var(--bg-base);
        }
        .scenario-tabs {
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .scenario-tab {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-left: 3px solid transparent;
            border-radius: var(--radius-md);
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-2);
            text-align: left;
            width: 100%;
            cursor: pointer;
            transition: all .3s;
        }
        .scenario-tab:hover {
            color: #fff;
            border-color: rgba(229, 72, 77, 0.35);
            background: var(--bg-card);
        }
        .scenario-tab.active {
            color: #fff;
            background: var(--bg-elevated);
            border-left-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .scenario-panels {
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .scenario-panel {
            display: none;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
        }
        .scenario-panel.active {
            display: flex;
        }
        .scenario-body {
            flex: 0 0 70%;
            padding: 28px;
        }
        .scenario-img {
            flex: 0 0 30%;
            min-height: 240px;
        }
        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-1);
        }
        .scenario-body p {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .scenario-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(229, 72, 77, 0.1);
            border: 1px solid rgba(229, 72, 77, 0.25);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* ===== 检索流程 ===== */
        .category-steps {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            position: relative;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .step-item:hover {
            transform: translateY(-4px);
            border-color: rgba(229, 72, 77, 0.5);
            box-shadow: var(--shadow-glow);
        }
        .step-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 12px;
            opacity: .85;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-1);
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 分类指引 ===== */
        .category-guide {
            background: var(--bg-base);
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .guide-card:hover {
            transform: translateY(-3px);
            border-color: rgba(229, 72, 77, 0.4);
            box-shadow: var(--shadow-glow);
        }
        .guide-card i {
            color: var(--amber);
            font-size: 22px;
            margin-bottom: 14px;
        }
        .guide-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-1);
        }
        .guide-card p {
            font-size: 13px;
            color: var(--text-2);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .category-faq {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .category-faq .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
        }
        .category-faq .accordion-button {
            background: transparent;
            color: var(--text-1);
            box-shadow: none;
            padding: 20px 10px 20px 16px;
            font-weight: 700;
            font-size: 16px;
            position: relative;
        }
        .category-faq .accordion-button::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 18px;
            background: var(--primary);
            border-radius: 3px;
        }
        .category-faq .accordion-button::after {
            filter: brightness(0) invert(1);
            opacity: .6;
        }
        .category-faq .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--text-1);
        }
        .category-faq .accordion-button:not(.collapsed)::after {
            filter: brightness(0) invert(1);
            opacity: 1;
            transform: var(--bs-accordion-btn-icon-transform);
        }
        .category-faq .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }
        .category-faq .accordion-button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .category-faq .accordion-body {
            padding: 0 16px 24px;
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-note {
            margin-top: 20px;
            font-size: 12px;
            color: var(--text-3);
            text-align: center;
        }

        /* ===== CTA ===== */
        .category-cta {
            background:
                radial-gradient(ellipse at center, rgba(229, 72, 77, 0.14) 0%, transparent 65%),
                var(--bg-base);
            padding: 88px 0;
        }
        .category-cta h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-1);
            margin-bottom: 32px;
            text-align: center;
        }
        .cta-form {
            max-width: 660px;
            margin: 0 auto;
            display: flex;
            gap: 12px;
        }
        .cta-form input {
            flex: 1;
            background: #0D1017;
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 10px;
            padding: 14px 20px;
            color: var(--text-1);
            font-size: 14px;
            transition: border-color .3s, box-shadow .3s;
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .cta-form input::placeholder {
            color: var(--text-3);
        }
        .cta-form button {
            padding: 14px 34px;
            border: none;
            border-radius: 10px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: filter .3s, box-shadow .3s, transform .2s;
            box-shadow: 0 4px 16px rgba(229, 72, 77, 0.25);
        }
        .cta-form button:hover {
            filter: brightness(1.1);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }
        .cta-form button:active {
            transform: translateY(0);
        }
        .cta-form button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-surface);
            border-top: 2px solid transparent;
            border-image: linear-gradient(135deg, #B91C1C 0%, #E5484D 45%, #F07A3F 100%) 1;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
        }
        .footer-brand .brand-logo {
            font-size: 20px;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand p {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.75;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 18px;
            color: var(--text-1);
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-2);
            font-size: 14px;
            transition: color .2s;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-col p {
            color: var(--text-2);
            font-size: 14px;
            margin-bottom: 10px;
        }
        .footer-col p i {
            color: var(--primary);
            margin-right: 8px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--text-3);
        }
        .footer-bottom .copyright a {
            color: var(--text-3);
            transition: color .2s;
        }
        .footer-bottom .copyright a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .category-hero h1 {
                font-size: 36px;
            }
            .scenario-body {
                padding: 24px;
            }
            .scenario-img {
                flex-basis: 34%;
            }
        }
        @media (max-width: 991.98px) {
            .section-block {
                --space-section: 72px;
            }
            .nav-chips {
                margin-left: 8px;
            }
            .nav-chips a {
                padding: 8px 14px;
                font-size: 13px;
            }
            .header-cta .btn-cta span {
                display: none;
            }
            .header-cta .btn-cta {
                padding: 10px 12px;
            }
            .category-hero {
                padding: 56px 0;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .hero-stats {
                margin-top: 16px;
            }
            .scenario-tabs {
                flex-direction: row;
                overflow-x: auto;
                padding-bottom: 8px;
                scrollbar-width: none;
            }
            .scenario-tabs::-webkit-scrollbar {
                display: none;
            }
            .scenario-tab {
                flex-shrink: 0;
                width: auto;
                white-space: nowrap;
            }
            .scenario-panel {
                flex-direction: column;
            }
            .scenario-img {
                min-height: 180px;
                max-height: 240px;
            }
            .scenario-img img {
                height: 100%;
            }
            .guide-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 767.98px) {
            .section-block {
                --space-section: 56px;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-lead {
                font-size: 14px;
            }
            .hero-summary {
                font-size: 13px;
                padding: 12px 14px;
            }
            .stat-badge {
                min-width: 130px;
                padding: 12px 16px;
            }
            .stat-num {
                font-size: 20px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .hot-card-image {
                height: 180px;
            }
            .hot-card h3 {
                font-size: 16px;
            }
            .scenario-body {
                padding: 20px;
            }
            .scenario-body h3 {
                font-size: 17px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .category-cta {
                padding: 64px 0;
            }
            .category-cta h2 {
                font-size: 22px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .brand-logo {
                font-size: 17px;
            }
            .nav-chips {
                margin-left: 0;
            }
            .nav-chips a {
                padding: 7px 12px;
                font-size: 12px;
            }
            .header-cta .btn-cta {
                padding: 9px 10px;
                font-size: 13px;
            }
            .hero-chips span {
                font-size: 12px;
                padding: 5px 12px;
            }
            .step-item {
                padding: 20px;
            }
            .feature-card {
                padding: 22px;
            }
            .feature-card h3 {
                font-size: 18px;
            }
        }

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