/* roulang page: index */
:root {
            --primary: #4F46E5;
            --primary-hover: #4338CA;
            --secondary: #7C3AED;
            --accent-cyan: #06B6D4;
            --accent-green: #10B981;
            --dark-base: #0B0F19;
            --dark-card: #151D2F;
            --bg-light: #F8FAFC;
            --white: #FFFFFF;
            --text-main: #0F172A;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --border-dark: #26334D;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 12px 32px -8px rgba(79, 70, 229, 0.08);
            --shadow-float: 0 20px 40px -12px rgba(15, 23, 42, 0.15);
            --trans-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input, select, textarea {
            font: inherit;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部双行导航 */
        .utility-bar {
            background-color: var(--dark-base);
            color: var(--text-light);
            font-size: 0.85rem;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .utility-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .utility-status {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent-green);
            animation: pulseDot 2s infinite;
        }

        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .utility-meta {
            display: flex;
            gap: 20px;
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--trans-smooth);
        }

        .main-header .container {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.1rem;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 32px;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--trans-smooth);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--trans-smooth);
        }

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

        .btn-header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            padding: 10px 22px;
            border-radius: 99px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--trans-smooth);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
        }

        /* 基础排版与组件 */
        .section-padding {
            padding: 88px 0;
        }

        .section-header {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 56px auto;
        }

        .pill-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(79, 70, 229, 0.08);
            border: 1px solid rgba(79, 70, 229, 0.2);
            border-radius: 99px;
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 700;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-main);
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .card-big {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 36px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--trans-smooth);
            position: relative;
            overflow: hidden;
        }

        .card-big:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
            border-color: rgba(79, 70, 229, 0.3);
        }

        /* 1. 首屏 Hero 架构 */
        .hero-section {
            position: relative;
            background: radial-gradient(circle at top right, rgba(124, 58, 237, 0.12), transparent 40%),
                        radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.08), transparent 40%),
                        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
            padding: 70px 0 90px 0;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-layout {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
        }

        .hero-copy {
            max-width: 650px;
        }

        .hero-tag {
            background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(124, 58, 237, 0.1));
            color: var(--primary);
            border: 1px solid rgba(79, 70, 229, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 2.9rem;
            font-weight: 900;
            line-height: 1.22;
            color: var(--text-main);
            margin-bottom: 22px;
            letter-spacing: -1px;
        }

        .hero-title-highlight {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-intro {
            font-size: 1.12rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .btn-primary-action {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            padding: 16px 36px;
            border-radius: 99px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--trans-smooth);
            box-shadow: 0 10px 24px rgba(79, 70, 229, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-action:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(79, 70, 229, 0.4);
        }

        .btn-secondary-action {
            background: var(--white);
            color: var(--text-main);
            padding: 16px 32px;
            border-radius: 99px;
            font-weight: 700;
            font-size: 1.05rem;
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: var(--trans-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-action:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(79, 70, 229, 0.03);
        }

        .hero-trust-badges {
            display: flex;
            gap: 24px;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        .trust-icon {
            color: var(--accent-green);
            font-weight: 900;
        }

        .hero-stage {
            position: relative;
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 24px 50px -12px rgba(15, 23, 42, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.8);
            background: var(--dark-base);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hero-image-wrapper:hover img {
            transform: scale(1.02);
        }

        .hero-floating-card {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            background: rgba(11, 15, 25, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .floating-stat {
            display: flex;
            flex-direction: column;
        }

        .floating-stat-num {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent-cyan);
        }

        .floating-stat-lbl {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        /* 2. 核心数据指标条 */
        .metrics-bar-section {
            padding: 0 0 50px 0;
            margin-top: -36px;
            position: relative;
            z-index: 10;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 40px;
            box-shadow: var(--shadow-float);
            border: 1px solid var(--border-color);
        }

        .metric-cell {
            display: flex;
            flex-direction: column;
            border-right: 1px solid var(--border-color);
            padding-right: 20px;
        }

        .metric-cell:last-child {
            border-right: none;
            padding-right: 0;
        }

        .metric-val {
            font-size: 2.3rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-feature-settings: "tnum";
        }

        .metric-label {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 3. 卖点亮点（服务亮点） */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-box {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--trans-smooth);
            display: flex;
            flex-direction: column;
        }

        .feature-box:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: 0 16px 36px rgba(79, 70, 229, 0.12);
        }

        .feature-icon-badge {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(124, 58, 237, 0.15));
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .feature-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .feature-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .feature-tag-pill {
            align-self: flex-start;
            font-size: 0.75rem;
            padding: 4px 10px;
            background: #F1F5F9;
            color: var(--text-muted);
            border-radius: 6px;
            font-weight: 600;
        }

        /* 4. 可验证技术参数区 */
        .tech-spec-section {
            background: var(--white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .tech-split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .console-preview {
            background: var(--dark-base);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-float);
            border: 1px solid var(--border-dark);
            color: #E2E8F0;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.88rem;
        }

        .console-header-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--border-dark);
        }

        .console-dots {
            display: flex;
            gap: 6px;
        }

        .c-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }

        .c-dot.red { background: #EF4444; }
        .c-dot.yellow { background: #F59E0B; }
        .c-dot.green { background: #10B981; }

        .console-row {
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            line-height: 1.6;
        }

        .console-prompt {
            color: var(--accent-cyan);
            user-select: none;
        }

        .console-code {
            color: #CBD5E1;
        }

        .console-val {
            color: var(--accent-green);
            font-weight: bold;
        }

        .spec-list-group {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .spec-item-card {
            display: flex;
            gap: 18px;
            padding: 20px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .spec-badge-num {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .spec-item-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .spec-item-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 5. 时段卡（全天候无缝轮播计划） */
        .schedule-section {
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
        }

        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .schedule-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            position: relative;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .time-badge {
            display: inline-block;
            background: var(--text-main);
            color: var(--white);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            margin-bottom: 16px;
            align-self: flex-start;
        }

        .time-badge.active-time {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
        }

        .schedule-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .schedule-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .strategy-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(79, 70, 229, 0.08);
            padding: 4px 8px;
            border-radius: 4px;
            width: fit-content;
        }

        /* 6. 套件与产品矩阵 */
        .packages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: stretch;
        }

        .package-card {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            position: relative;
            transition: var(--trans-smooth);
        }

        .package-card.recommended {
            border: 2px solid var(--primary);
            box-shadow: 0 16px 40px rgba(79, 70, 229, 0.15);
            transform: translateY(-8px);
        }

        .badge-recommended {
            position: absolute;
            top: 0;
            right: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 800;
            padding: 6px 14px;
            border-radius: 0 0 10px 10px;
            text-transform: uppercase;
        }

        .pkg-title {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .pkg-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            min-height: 48px;
        }

        .pkg-spec-box {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 18px;
            margin-bottom: 24px;
        }

        .pkg-spec-line {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            margin-bottom: 8px;
        }

        .pkg-spec-line:last-child {
            margin-bottom: 0;
        }

        .pkg-spec-lbl {
            color: var(--text-muted);
        }

        .pkg-spec-v {
            font-weight: 700;
            color: var(--text-main);
        }

        .pkg-features-list {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .pkg-features-list li {
            font-size: 0.9rem;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .pkg-features-list li::before {
            content: '✓';
            color: var(--accent-green);
            font-weight: 900;
        }

        .pkg-btn {
            width: 100%;
            padding: 14px 0;
            border-radius: 99px;
            font-weight: 700;
            font-size: 0.95rem;
            text-align: center;
            border: 1px solid var(--border-color);
            background: var(--white);
            color: var(--text-main);
            transition: var(--trans-smooth);
            cursor: pointer;
            display: block;
        }

        .pkg-btn:hover {
            background: rgba(79, 70, 229, 0.06);
            border-color: var(--primary);
            color: var(--primary);
        }

        .package-card.recommended .pkg-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            border: none;
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.28);
        }

        .package-card.recommended .pkg-btn:hover {
            opacity: 0.95;
            box-shadow: 0 10px 24px rgba(79, 70, 229, 0.38);
        }

        /* 7. 深色沉浸式实测与稳定性验证 */
        .dark-immersion-section {
            background-color: var(--dark-base);
            color: var(--white);
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .dark-immersion-section .section-title {
            color: var(--white);
        }

        .dark-immersion-section .section-desc {
            color: var(--text-light);
        }

        .stability-card {
            background: var(--dark-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-xl);
            padding: 40px;
            position: relative;
        }

        .stability-content-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }

        .stability-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }

        .stability-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .stability-factors {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .factor-item {
            border-left: 3px solid var(--primary);
            padding-left: 20px;
        }

        .factor-item h4 {
            font-size: 1.15rem;
            color: var(--accent-cyan);
            margin-bottom: 6px;
        }

        .factor-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* 8. 场景演示（多行业落地） */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .scenario-card {
            background: var(--white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            transition: var(--trans-smooth);
        }

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

        .scenario-thumb {
            height: 100%;
            min-height: 240px;
        }

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

        .scenario-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .scenario-body h4 {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .scenario-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .scenario-metric-box {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-green);
            background: #ECFDF5;
            padding: 6px 12px;
            border-radius: 6px;
            display: inline-block;
            width: fit-content;
        }

        /* 9. 专家与算法研发团队 */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .team-member-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            border: 1px solid var(--border-color);
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--trans-smooth);
        }

        .team-member-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .member-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.2), rgba(124, 58, 237, 0.2));
            color: var(--primary);
            font-weight: 900;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
        }

        .member-name {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 4px;
        }

        .member-role {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .member-bio {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 10. 用户口碑评价 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .review-stars {
            color: #F59E0B;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
        }

        .reviewer-avatar-mini {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #E2E8F0;
            color: var(--text-main);
            font-size: 0.9rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .reviewer-meta h5 {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .reviewer-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 11. 资讯动态与证据区 */
        .news-section {
            background: var(--white);
            border-top: 1px solid var(--border-color);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
        }

        .news-featured {
            background: var(--bg-light);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }

        .news-featured-img {
            height: 260px;
        }

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

        .news-featured-content {
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-featured-content h4 {
            font-size: 1.35rem;
            font-weight: 800;
        }

        .news-featured-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        .news-item-compact {
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            transition: var(--trans-smooth);
        }

        .news-item-compact:hover {
            border-color: var(--primary);
            background: var(--white);
        }

        .news-item-date {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 6px;
            display: block;
        }

        .news-item-compact h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .news-item-compact p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 12. 预约演示表单（唯一主转化区） */
        .cta-form-section {
            background: radial-gradient(circle at center, #1E1B4B 0%, #0B0F19 100%);
            color: var(--white);
            padding: 96px 0;
            position: relative;
        }

        .cta-box-inner {
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-box-inner h3 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .cta-box-inner p {
            font-size: 1.05rem;
            color: #CBD5E1;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        .cta-form-grid {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-xl);
            padding: 40px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            text-align: left;
        }

        .form-group-full {
            grid-column: span 2;
        }

        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 8px;
        }

        .form-input {
            width: 100%;
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            color: var(--white);
            font-size: 0.95rem;
            transition: var(--trans-smooth);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
        }

        .form-submit-btn {
            grid-column: span 2;
            background: linear-gradient(135deg, var(--accent-cyan), var(--primary));
            color: var(--white);
            padding: 16px;
            border-radius: var(--radius-md);
            font-weight: 800;
            font-size: 1.1rem;
            border: none;
            cursor: pointer;
            transition: var(--trans-smooth);
            margin-top: 10px;
            box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
        }

        .form-submit-btn:hover {
            opacity: 0.95;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(6, 182, 212, 0.4);
        }

        .form-guarantee-note {
            grid-column: span 2;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 10px;
        }

        /* 统一页脚 */
        .site-footer {
            background-color: #070A11;
            color: #94A3B8;
            padding: 72px 0 36px 0;
            font-size: 0.9rem;
            border-top: 1px solid var(--border-dark);
        }

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

        .footer-brand h4 {
            color: var(--white);
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand p {
            line-height: 1.7;
            font-size: 0.88rem;
            color: #64748B;
        }

        .footer-col h5 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .footer-links a {
            transition: var(--trans-smooth);
            color: #94A3B8;
        }

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

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 0.88rem;
        }

        .footer-contact-list span {
            color: var(--white);
            font-weight: 600;
        }

        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.82rem;
            color: #64748B;
        }

        /* 底部固定转化托盘 */
        .persistent-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(11, 15, 25, 0.95);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-dark);
            padding: 12px 0;
            box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.3);
        }

        .persistent-bottom-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .persistent-info {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .persistent-title {
            color: var(--white);
            font-weight: 700;
            font-size: 0.95rem;
        }

        .persistent-desc {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .persistent-actions {
            display: flex;
            gap: 12px;
        }

        .btn-mini-action {
            padding: 8px 18px;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--trans-smooth);
            text-align: center;
        }

        .btn-mini-primary {
            background: linear-gradient(135deg, var(--accent-cyan), var(--primary));
            color: var(--white);
        }

        .btn-mini-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border: 1px solid var(--border-dark);
        }

        /* 移动端菜单控制 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-main);
            margin: 5px 0;
            transition: var(--trans-smooth);
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-stage {
                max-width: 640px;
                margin: 0 auto;
                width: 100%;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .metric-cell {
                border-right: none;
            }
            .features-grid, .schedule-grid, .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-split-grid, .stability-content-grid, .news-layout {
                grid-template-columns: 1fr;
            }
            .packages-grid {
                grid-template-columns: 1fr;
                max-width: 520px;
                margin: 0 auto;
            }
            .package-card.recommended {
                transform: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .utility-bar {
                display: none;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-float);
                gap: 16px;
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .features-grid, .schedule-grid, .team-grid, .reviews-grid, .scenario-grid {
                grid-template-columns: 1fr;
            }
            .scenario-card {
                grid-template-columns: 1fr;
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
            .form-submit-btn {
                grid-column: span 1;
            }
            .persistent-desc {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-action, .btn-secondary-action {
                justify-content: center;
            }
        }