/* ========== 设计系统 ========== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-darker: #1e40af;
            --primary-light: #3b82f6;
            --primary-lighter: #60a5fa;
            --primary-faint: #dbeafe;
            --primary-glow: rgba(37, 99, 235, 0.15);
            --primary-glow-strong: rgba(37, 99, 235, 0.25);
            --text-900: #0f172a;
            --text-800: #1e293b;
            --text-700: #334155;
            --text-600: #475569;
            --text-500: #64748b;
            --text-400: #94a3b8;
            --bg-white: #ffffff;
            --bg-50: #f8fafc;
            --bg-100: #f1f5f9;
            --bg-blue-50: #eff6ff;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --border-light: rgba(37, 99, 235, 0.08);
            --border-medium: rgba(37, 99, 235, 0.15);
            --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
            --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.05), 0 1px 3px -1px rgba(0, 0, 0, 0.03);
            --shadow-md: 0 10px 25px -8px rgba(0, 0, 0, 0.06), 0 4px 12px -4px rgba(0, 0, 0, 0.02);
            --shadow-lg: 0 20px 50px -15px rgba(37, 99, 235, 0.10);
            --shadow-xl: 0 30px 60px -20px rgba(37, 99, 235, 0.15);
            --shadow-2xl: 0 40px 80px -24px rgba(37, 99, 235, 0.18);
            --radius-xl: 32px;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-full: 9999px;
            --transition-soft: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
            --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
            --transition-smooth: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-white);
            color: var(--text-800);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }

        /* ========== 背景环境 ========== */
        .bg-ambient {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse 80% 50% at 20% -10%, rgba(37, 99, 235, 0.04), transparent 50%),
                radial-gradient(ellipse 60% 40% at 90% 20%, rgba(59, 130, 246, 0.03), transparent 50%),
                radial-gradient(ellipse 70% 50% at 50% 100%, rgba(37, 99, 235, 0.02), transparent 60%);
            pointer-events: none;
            z-index: 0;
        }

        /* ========== 导航栏 ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(24px) saturate(180%);
            -webkit-backdrop-filter: blur(24px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.6);
            transition: var(--transition-soft);
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 20px -8px rgba(0, 0, 0, 0.06);
            border-bottom-color: var(--border-subtle);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo img {
            filter: none !important;
        }

        .logo-img {
            width: 44px;
            height: 44px;
            object-fit: contain;
            flex-shrink: 0;
            display: block;
        }

        .logo i {
            font-size: 24px;
            background: linear-gradient(135deg, var(--primary-darker), var(--primary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .nav-list {
            display: flex;
            gap: 32px;
            list-style: none;
            flex-grow: 1;
            justify-content: center;
        }

        .nav-item {
            position: relative;
        }

        .nav-item>a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-600);
            transition: var(--transition-soft);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 0;
            letter-spacing: 0.2px;
        }

        .nav-item>a i {
            font-size: 11px;
            transition: transform 0.3s;
        }

        .nav-item:hover>a {
            color: var(--primary);
        }

        .nav-item:hover>a i {
            transform: rotate(180deg);
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(16px);
            min-width: 240px;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 16px 8px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.35s cubic-bezier(0.2, 0.9, 0.4, 1.1);
            border: 1px solid var(--border-light);
            z-index: 100;
        }

        .nav-item:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-menu li {
            list-style: none;
        }

        .dropdown-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 20px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--text-700);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition-soft);
        }

        .dropdown-menu a i {
            width: 24px;
            font-size: 14px;
            color: var(--primary);
            transition: var(--transition-soft);
        }

        .dropdown-menu a:hover {
            background: var(--bg-blue-50);
            color: var(--primary);
            transform: translateX(6px);
        }

        .dropdown-menu a:hover i {
            transform: scale(1.1);
        }

        .dropdown-divider {
            height: 1px;
            background: var(--border-subtle);
            margin: 12px 16px;
        }

        /* AI引擎导航项样式 */
        .nav-item.ai-engine {
            position: relative;
        }

        .ai-badge-pulse {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: #ef4444;
            border-radius: 50%;
            margin-left: 4px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
            }
            70% {
                box-shadow: 0 0 0 6px rgba(239, 68, 68, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
            }
        }

        .dropdown-menu .ai-tag {
            margin-left: auto;
            font-size: 10px;
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
            color: white;
        }

        .dropdown-menu .ai-tag:empty {
            display: none;
        }

        /* AI相关标签颜色 */
        .dropdown-menu .ai-tag:contains("实时") {
            background: linear-gradient(135deg, #3b82f6, #60a5fa);
        }

        /* 下拉菜单中链接的ai-tag样式 */
        .dropdown-menu a .ai-tag {
            background: linear-gradient(135deg, #3b82f6, #60a5fa);
        }

        /* 咨询中心导航项下拉菜单位置微调 */
        .nav-item.nav-consult .dropdown-menu {
            left: auto;
            right: 0;
            transform: translateX(0) translateY(16px);
        }

        .nav-item.nav-consult:hover .dropdown-menu {
            transform: translateX(0) translateY(0);
        }

        /* 咨询中心下拉菜单图标样式 */
        .nav-item.nav-consult .dropdown-menu a i {
            color: var(--primary);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-shrink: 0;
        }

        .tel {
            font-weight: 600;
            background: var(--primary-faint);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            color: var(--primary-dark);
            transition: var(--transition-soft);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tel:hover {
            background: rgba(37, 99, 235, 0.14);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 26px;
            cursor: pointer;
            color: var(--primary);
            transition: var(--transition-soft);
            padding: 4px;
        }

        .mobile-menu-btn:hover {
            transform: scale(1.05);
        }

        @media (max-width: 1024px) {
            .nav-list {
                display: none;
            }

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

            .logo-img {
                width: 36px;
                height: 36px;
            }

            .logo img {
                filter: none !important;
            }

            .logo-text {
                font-size: 15px;
            }

            .nav-right .tel {
                display: none;
            }
        }

        .mobile-nav {
            position: fixed;
            top: 76px;
            left: -100%;
            width: 82%;
            max-width: 340px;
            height: calc(100vh - 76px);
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(24px);
            box-shadow: var(--shadow-2xl);
            transition: left 0.45s cubic-bezier(0.22, 1, 0.36, 1);
            z-index: 999;
            padding: 28px 24px;
            overflow-y: auto;
        }

        .mobile-nav.active {
            left: 0;
        }

        .mobile-nav .mobile-nav-item {
            margin-bottom: 16px;
        }

        .mobile-nav .mobile-nav-item>a {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-800);
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
            text-decoration: none;
            transition: var(--transition-soft);
        }

        .mobile-nav .mobile-nav-item>a:hover {
            color: var(--primary);
        }

        .mobile-submenu {
            padding-left: 16px;
            margin-top: 6px;
            display: none;
            animation: fadeSlideDown 0.3s ease;
        }

        .mobile-submenu.show {
            display: block;
        }

        .mobile-submenu a {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-600);
            text-decoration: none;
            transition: var(--transition-soft);
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
        }

        .mobile-submenu a:hover {
            color: var(--primary);
            padding-left: 8px;
        }

        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(6px);
            z-index: 998;
            display: none;
        }

        .mobile-overlay.active {
            display: block;
        }

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

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition-bounce);
            cursor: pointer;
            border: none;
            text-decoration: none;
            position: relative;
            overflow: hidden;
            letter-spacing: 0.2px;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.7s;
        }

        .btn:hover::before {
            left: 100%;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            color: white;
            box-shadow: 0 8px 28px -6px var(--primary-glow-strong);
        }

        .btn-primary:hover {
            transform: translateY(-4px) scale(1.02);
            box-shadow: 0 16px 44px -10px var(--primary-glow-strong);
        }

        .btn-outline {
            background-color: transparent;
            color: #0066ff;
            border: 1.5px solid #0066ff;
            padding: 12px 28px;
            border-radius: 24px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
        }

        .btn-outline:hover {
            background-color: rgba(0, 102, 255, 0.06);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 102, 255, 0.15);
            border-color: #0052d6;
            color: #0052d6;
        }

        /* AI诊断按钮 */
        .btn-ai {
            background-color: #0066ff;
            color: #ffffff;
            border: none;
            padding: 12px 28px;
            border-radius: 24px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: none;
            position: relative;
            overflow: hidden;
        }

        .btn-ai::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
            transition: left 0.5s;
        }

        .btn-ai:hover::before {
            left: 100%;
        }

        .btn-ai:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 102, 255, 0.30);
            background-color: #0052d6;
        }

        .btn-sm {
            padding: 10px 24px;
            font-size: 13px;
        }

        /* ========== 首屏 Banner ========== */
        .banner {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 160px 0 120px;
            position: relative;
        }

        /* AI高亮文字 */
        .ai-highlight {
            color: #0066ff !important;
            font-weight: 700;
            text-shadow: none;
        }

        /* AI信任徽章 */
        .trust-badges {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
            margin: 20px 0 28px;
            flex-wrap: wrap;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: #f5f7fa;
            border: 1px solid #e5e7eb;
            border-radius: 20px;
            color: #4b5563;
            font-size: 14px;
            transition: var(--transition-soft);
        }

        .trust-badge:hover {
            background: #eef2ff;
            border-color: #c7d2fe;
            transform: translateY(-2px);
        }

        .badge-icon {
            font-size: 16px;
        }

        .badge-dot {
            display: inline-block;
            width: 4px;
            height: 4px;
            background: #d1d5db;
            border-radius: 50%;
        }

        .banner-content {
            text-align: center;
            position: relative;
            max-width: 900px;
            padding: 80px 20px;
        }

        .banner-content h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.6;
            color: #1a1a1a;
            text-shadow: none;
            margin-bottom: 24px;
        }

        .banner-content>p {
            font-size: 18px;
            color: #4a4a4a;
            text-shadow: none;
            margin-bottom: 40px;
            font-weight: 450;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .platform-tip {
            display: inline-block;
            background-color: #f5f7fa;
            color: #7a869a;
            padding: 8px 24px;
            border-radius: 20px;
            font-size: 14px;
            margin-bottom: 32px;
            border: none;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            box-shadow: none;
            letter-spacing: 0.3px;
        }

        .platform-tip i {
            color: #7a869a;
            font-size: 16px;
        }

        .banner-btns {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Banner主按钮 */
        .banner .btn-ai {
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
        }

        .parallax-element {
            transition: transform 0.3s ease-out;
        }

        /* ================================================================
        ========== 第二屏：GEO 深度解读 ==========
        ================================================================ */
        .geo-deep {
            padding: 100px 0 120px;
            background: linear-gradient(180deg, #f8faff 0%, var(--bg-white) 100%);
            position: relative;
            overflow: hidden;
        }

        .geo-deep::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-faint), var(--primary-light), var(--primary-faint), transparent);
        }

        .geo-deep .bg-ornament {
            position: absolute;
            top: -120px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.04), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        .geo-deep .bg-ornament-2 {
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.03), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 56px;
            position: relative;
            z-index: 1;
        }

        .section-title h2 {
            font-size: 40px;
            font-weight: 700;
            background: linear-gradient(180deg, var(--text-900) 0%, var(--primary-darker) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 12px;
            letter-spacing: -0.8px;
            line-height: 1.2;
        }

        .section-title p {
            font-size: 17px;
            color: var(--text-500);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-title .highlight {
            color: var(--primary);
            font-weight: 500;
        }

        .section-divider {
            width: 48px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-dark), var(--primary-light));
            border-radius: var(--radius-full);
            margin: 18px auto 0;
        }

        .hero-statement {
            background: var(--bg-white);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 40px 48px;
            margin: 0 0 48px 0;
            position: relative;
            overflow: hidden;
            transition: var(--transition-soft);
            box-shadow: var(--shadow-xs);
        }

        .hero-statement:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
        }

        .hero-statement .quote-mark {
            font-size: 52px;
            color: var(--primary-faint);
            position: absolute;
            top: 12px;
            left: 20px;
            font-family: Georgia, serif;
            line-height: 1;
            opacity: 0.5;
        }

        .hero-statement .statement-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .hero-statement .statement-text {
            flex: 1;
            min-width: 220px;
        }

        .hero-statement .statement-text .big-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            background: var(--primary-faint);
            display: inline-block;
            padding: 2px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
        }

        .hero-statement .statement-text h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-800);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .hero-statement .statement-text h3 span {
            color: var(--primary);
        }

        .hero-statement .statement-text p {
            color: var(--text-600);
            font-size: 15.5px;
            line-height: 1.7;
            max-width: 540px;
        }

        .hero-statement .statement-quote {
            flex: 0 0 auto;
            padding: 12px 24px;
            background: var(--bg-50);
            border-radius: var(--radius-lg);
            font-size: 15px;
            color: var(--text-700);
            border-left: 3px solid var(--primary);
            font-weight: 450;
            max-width: 280px;
        }

        .geo-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 12px;
            position: relative;
            z-index: 1;
        }

        .geo-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 36px 24px 30px;
            text-align: center;
            transition: var(--transition-bounce);
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-xs);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        /* AI 数据指标 */
        .ai-metric {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: #f8fafc;
            padding: 10px 16px;
            border-radius: 20px;
            margin: 15px 0;
            font-size: 14px;
            color: #64748b;
            box-sizing: border-box;
        }

        .ai-metric .metric-value {
            color: #2563eb;
            font-weight: 700;
            font-size: 16px;
        }

        .ai-metric .metric-trend {
            color: #10b981;
            font-weight: 500;
            font-size: 13px;
        }

        .geo-card::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-xl);
            padding: 1px;
            background: linear-gradient(145deg, var(--primary-dark), var(--primary-light));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0;
            transition: opacity 0.6s;
            pointer-events: none;
        }

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

        .geo-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .geo-card .geo-icon {
            width: 72px;
            height: 72px;
            background: var(--bg-50);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 30px;
            color: var(--primary);
            transition: var(--transition-bounce);
            position: relative;
        }

        .geo-card:hover .geo-icon {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: white;
            transform: scale(1.06) rotate(-2deg);
            box-shadow: 0 12px 32px -8px var(--primary-glow-strong);
        }

        .geo-card .card-number {
            position: absolute;
            top: 14px;
            right: 18px;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-400);
            letter-spacing: 0.5px;
            opacity: 0.4;
            transition: var(--transition-soft);
        }

        .geo-card:hover .card-number {
            opacity: 0.8;
            color: var(--primary);
        }

        .geo-card h3 {
            font-size: 19px;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-800);
            letter-spacing: -0.3px;
        }

        .geo-card p {
            color: var(--text-600);
            font-size: 14px;
            line-height: 1.7;
            flex: 1;
        }

        .geo-card .card-tag {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 16px;
            background: var(--primary-faint);
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 500;
            color: var(--primary-dark);
            letter-spacing: 0.3px;
            transition: var(--transition-soft);
        }

        .geo-card:hover .card-tag {
            background: var(--primary);
            color: white;
        }

        .compare-box {
            margin-top: 48px;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 44px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-xs);
            transition: var(--transition-soft);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 32px;
        }

        .compare-box:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }

        .compare-box .cmp-item {
            display: flex;
            align-items: center;
            gap: 14px;
            flex: 0 1 auto;
        }

        .compare-box .cmp-item .cmp-icon {
            font-size: 24px;
            color: var(--primary);
            opacity: 0.6;
        }

        .compare-box .cmp-item .cmp-text {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.5;
            white-space: nowrap;
        }

        .compare-box .cmp-item .cmp-text strong {
            color: var(--text-800);
            display: block;
            font-size: 15px;
            font-weight: 600;
        }

        .compare-box .cmp-divider {
            width: 1px;
            height: 36px;
            background: var(--border-subtle);
            flex-shrink: 0;
        }

        /* ================================================================
        ========== 第三屏：产品能力 ==========
        ================================================================ */
        .product {
            padding: 100px 0 120px;
            background: var(--bg-white);
            position: relative;
        }

        .product::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-faint), var(--primary-light), var(--primary-faint), transparent);
        }

        .value-prop {
            background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
            border-radius: var(--radius-xl);
            padding: 44px 52px;
            margin: 0 0 48px 0;
            color: white;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 48px -12px rgba(37, 99, 235, 0.30);
        }

        .value-prop::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .value-prop .vp-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .value-prop .vp-text {
            flex: 2;
            min-width: 200px;
        }

        .value-prop .vp-text .vp-label {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            opacity: 0.7;
            display: block;
            margin-bottom: 6px;
        }

        .value-prop .vp-text h3 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .value-prop .vp-text p {
            font-size: 15px;
            opacity: 0.9;
            line-height: 1.7;
            max-width: 500px;
        }

        .value-prop .vp-tagline {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 10px 24px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.15);
            white-space: nowrap;
        }

        .product-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .product-item {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 28px 36px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-bounce);
            position: relative;
            box-shadow: var(--shadow-xs);
        }

        .product-item::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-xl);
            padding: 1px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0;
            transition: opacity 0.5s;
            pointer-events: none;
        }

        .product-item:hover::before {
            opacity: 1;
        }

        .product-item:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .product-item .product-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-faint);
            color: var(--primary-dark);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .product-badge .ai-badge {
            background: rgba(37, 99, 235, 0.15);
            color: #2563eb;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 700;
            border: 1px solid rgba(37, 99, 235, 0.3);
            margin-left: 4px;
        }

        .product-item h3 {
            font-size: 20px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-800);
            font-weight: 600;
        }

        .product-item h3 i {
            color: var(--primary);
            font-size: 24px;
        }

        .product-item>p {
            color: var(--text-600);
            margin-bottom: 18px;
            font-size: 14px;
            line-height: 1.7;
        }

        .product-item ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .product-item li {
            font-size: 14px;
            display: flex;
            align-items: baseline;
            gap: 10px;
            color: var(--text-600);
            list-style: none;
            line-height: 1.5;
        }

        .product-item li::before {
            content: "✓";
            font-weight: 700;
            font-size: 11px;
            color: var(--primary);
            background: var(--primary-faint);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition-soft);
        }

        .product-item:hover li::before {
            background: var(--primary);
            color: white;
        }

        .trust-bar {
            margin-top: 48px;
            background: var(--bg-50);
            border-radius: var(--radius-xl);
            padding: 28px 44px;
            border: 1px solid var(--border-subtle);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            transition: var(--transition-soft);
        }

        .trust-bar:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-sm);
        }

        .trust-bar .trust-item {
            display: flex;
            align-items: center;
            gap: 14px;
            flex: 0 1 auto;
        }

        .trust-bar .trust-item i {
            font-size: 24px;
            color: var(--primary);
            opacity: 0.6;
        }

        .trust-bar .trust-item .trust-text {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.4;
        }

        .trust-bar .trust-item .trust-text strong {
            color: var(--text-800);
            display: block;
            font-weight: 600;
        }

        /* ================================================================
        ========== 第四屏：服务流程 ==========
        ================================================================ */
        .process {
            padding: 100px 0 120px;
            background: linear-gradient(180deg, var(--bg-50) 0%, var(--bg-white) 100%);
            position: relative;
        }

        .process::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-faint), var(--primary-light), var(--primary-faint), transparent);
        }

        .process-philosophy {
            background: var(--bg-white);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 36px 48px;
            margin: 0 0 48px 0;
            box-shadow: var(--shadow-xs);
            transition: var(--transition-soft);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .process-philosophy:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }

        .process-philosophy .phil-left {
            display: flex;
            align-items: center;
            gap: 18px;
            flex: 2;
            min-width: 200px;
        }

        .process-philosophy .phil-left .phil-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-faint);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .process-philosophy .phil-left .phil-text h4 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-800);
            margin-bottom: 2px;
        }

        .process-philosophy .phil-left .phil-text p {
            font-size: 14.5px;
            color: var(--text-600);
            line-height: 1.6;
        }

        .process-philosophy .phil-tag {
            background: var(--primary-faint);
            color: var(--primary-dark);
            padding: 6px 20px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }

        .process-wrap {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 16px;
            position: relative;
            flex-wrap: wrap;
        }

        .process-wrap::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 40px;
            right: 40px;
            height: 1px;
            background: var(--border-subtle);
            z-index: 0;
        }

        .process-item {
            flex: 1;
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 28px 16px 24px;
            transition: var(--transition-bounce);
            border: 1px solid var(--border-subtle);
            position: relative;
            z-index: 1;
            min-width: 110px;
            box-shadow: var(--shadow-xs);
        }

        .process-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }

        /* 第一步高亮卡片 */
        .process-item.ai-first {
            border: 2px solid #2563eb !important;
            background-color: #f0f5ff !important;
            box-shadow: 0 10px 25px rgba(37, 99, 235, 0.1) !important;
            position: relative;
            transform: translateY(-4px);
        }

        .process-item.ai-first .process-num {
            background: #2563eb !important;
            color: #ffffff !important;
        }

        .ai-inline-badge {
            font-size: 10px;
            background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
            color: white;
            padding: 1px 8px;
            border-radius: 20px;
            margin-left: 4px;
            display: inline-block;
            vertical-align: middle;
        }

        .ai-step-tag {
            display: inline-block;
            margin-top: 12px;
            background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
            color: white;
            font-size: 12px;
            font-weight: bold;
            padding: 3px 14px;
            border-radius: 20px;
            box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
        }

        .process-num {
            width: 52px;
            height: 52px;
            background: var(--bg-white);
            color: var(--primary);
            font-size: 20px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            border: 1px solid var(--primary-faint);
            transition: var(--transition-bounce);
        }

        .process-item:hover .process-num {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: scale(1.05);
            box-shadow: 0 8px 24px var(--primary-glow-strong);
        }

        .process-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-800);
        }

        .process-item p {
            color: var(--text-500);
            font-size: 13px;
            line-height: 1.5;
        }

        .guarantee-box {
            margin-top: 48px;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 44px;
            border: 1px solid var(--border-subtle);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            transition: var(--transition-soft);
            box-shadow: var(--shadow-xs);
        }

        .guarantee-box:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }

        .guarantee-box .g-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .guarantee-box .g-left i {
            font-size: 28px;
            color: var(--primary);
            opacity: 0.7;
        }

        .guarantee-box .g-left .g-text {
            font-size: 15px;
            color: var(--text-600);
            line-height: 1.6;
        }

        .guarantee-box .g-left .g-text strong {
            color: var(--text-800);
            font-size: 17px;
            display: block;
            font-weight: 600;
        }

        .guarantee-box .g-badge {
            background: var(--primary);
            color: white;
            padding: 8px 24px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 14px;
            white-space: nowrap;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 100px 0;
            background: linear-gradient(135deg, var(--primary-darker), var(--primary));
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04), transparent 70%);
            bottom: -260px;
            left: -120px;
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 40px;
            font-weight: 700;
            color: white;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .cta-section .cta-subtitle {
            font-size: 18px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-section .btn-primary {
            background: linear-gradient(135deg, #ffffff 0%, #dbeafe 100%);
            color: var(--primary-darker);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.20);
            font-size: 16px;
            padding: 16px 44px;
        }

        .cta-section .btn-primary:hover {
            transform: scale(1.04) translateY(-4px);
            box-shadow: 0 20px 56px rgba(0, 0, 0, 0.30);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 100px 0 120px;
            background: var(--bg-white);
            position: relative;
        }

        .faq-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-faint), var(--primary-light), var(--primary-faint), transparent);
        }

        .faq-wrapper {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
            margin-top: 12px;
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            position: relative;
        }

        .faq-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
            opacity: 0;
            transition: opacity 0.4s;
        }

        .faq-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: var(--primary-faint);
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }

        .faq-item.active::before {
            opacity: 1;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 28px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-800);
            transition: var(--transition-soft);
            user-select: none;
            gap: 16px;
        }

        .faq-question .q-label {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--primary-faint);
            border-radius: 50%;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-dark);
            flex-shrink: 0;
            transition: var(--transition-soft);
        }

        .faq-item.active .faq-question .q-label {
            background: var(--primary);
            color: white;
        }

        .faq-question .q-text {
            flex: 1;
        }

        .faq-question .q-icon {
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }

        .faq-item.active .faq-question .q-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            padding: 0 28px;
            overflow: hidden;
            transition: max-height 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), padding 0.35s ease, opacity 0.4s ease;
            color: var(--text-600);
            font-size: 15px;
            line-height: 1.8;
            opacity: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 420px;
            padding: 0 28px 24px;
            opacity: 1;
        }

        .faq-answer strong {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .faq-answer .answer-icon {
            color: var(--primary);
            margin-right: 6px;
        }

        /* FAQ 侧边栏 - 优化后（背景变淡，文案营销） */
        .faq-sidebar {
            position: sticky;
            top: 100px;
        }

        .faq-sidebar-card {
            background: #f0f7ff;
            /* 淡蓝色 */
            border-radius: var(--radius-xl);
            padding: 36px 28px 32px;
            border: 1px solid var(--border-medium);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-soft);
            backdrop-filter: blur(4px);
        }

        .faq-sidebar-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            background: #e8f3ff;
        }

        .faq-sidebar-card .badge {
            display: inline-block;
            background: linear-gradient(135deg, #60a5fa 0%, #93bbfc 100%);
            color: white;
            padding: 4px 16px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .faq-sidebar-card .hot-tag {
            display: inline-block;
            background: #fee2e2;
            color: #dc2626;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 12px;
            border-radius: var(--radius-full);
            margin-left: 8px;
            vertical-align: middle;
        }

        .faq-sidebar-card h4 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-800);
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .faq-sidebar-card .sub-head {
            font-size: 14px;
            color: var(--primary-dark);
            font-weight: 500;
            margin-bottom: 20px;
            border-bottom: 1px dashed var(--border-medium);
            padding-bottom: 12px;
        }

        .sidebar-trust {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 20px;
            padding: 16px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .sidebar-trust .trust-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-700);
        }

        .sidebar-trust .trust-row span:first-child {
            width: 40px;
            flex-shrink: 0;
            font-weight: 500;
        }

        .sidebar-trust .trust-row .trust-bar-mini {
            flex: 1;
            height: 8px;
            background: #e5e7eb;
            border-radius: 4px;
            overflow: hidden;
        }

        .sidebar-trust .trust-bar-mini span {
            display: block;
            height: 100%;
            background: linear-gradient(90deg, #2563eb, #06b6d4);
            border-radius: 4px;
        }

        .sidebar-trust .trust-row span:last-child {
            width: 38px;
            text-align: right;
            font-weight: 600;
            color: var(--text-800);
        }

        .sidebar-trust .trust-total {
            font-size: 13px;
            color: var(--text-700);
            padding-top: 10px;
            border-top: 1px dashed var(--border-medium);
            margin-top: 2px;
            font-weight: 500;
        }

        .sidebar-competitor {
            margin-bottom: 20px;
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .sidebar-competitor .comp-row {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 0;
            font-size: 12.5px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-competitor .comp-row:last-child {
            border-bottom: none;
        }

        .sidebar-competitor .comp-name {
            flex: 1;
            font-weight: 500;
            color: var(--text-700);
        }

        .sidebar-competitor .comp-change {
            font-weight: 600;
            width: 50px;
            text-align: center;
        }

        .sidebar-competitor .comp-change.up {
            color: #ef4444;
        }

        .sidebar-competitor .comp-change.down {
            color: #22c55e;
        }

        .sidebar-competitor .comp-alert {
            font-size: 11px;
            padding: 1px 8px;
            background: #fee2e2;
            color: #dc2626;
            border-radius: var(--radius-full);
            font-weight: 600;
        }

        .sidebar-competitor .comp-safe {
            font-size: 11px;
            padding: 1px 8px;
            background: #dcfce7;
            color: #16a34a;
            border-radius: var(--radius-full);
            font-weight: 600;
        }

        .faq-sidebar-card .btn {
            width: 100%;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            box-shadow: 0 6px 20px -4px var(--primary-glow-strong);
        }

        .faq-sidebar-card .btn:hover {
            transform: scale(1.02) translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .footer {
            background: linear-gradient(180deg, #0f172a 0%, #020617 100%);
            color: var(--text-400);
            padding: 80px 0 40px;
            position: relative;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.10), transparent);
        }

        .footer-wrap {
            display: grid;
            grid-template-columns: 2fr 3fr 1fr;
            gap: 60px;
            align-items: start;
        }

        .footer-brand h3 {
            color: white;
            font-size: 24px;
            margin-bottom: 18px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-img {
            width: 36px;
            height: 36px;
            object-fit: contain;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .footer-contact h4 {
            margin-bottom: 16px;
        }

        .footer-contact-phone {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 8px;
        }

        .footer-contact-phone i {
            color: var(--primary);
            width: 16px;
        }

        .footer-contact-time {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 16px;
        }

        .footer-contact-time i {
            color: rgba(255, 255, 255, 0.4);
            width: 16px;
        }

        .footer-contact-qr {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }

        .footer-contact-qr img {
            width: 88px;
            height: 88px;
            border-radius: 10px;
            background: white;
            padding: 4px;
        }

        .footer-contact-qr span {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-brand h3 i {
            color: var(--primary-lighter);
        }

        .footer-brand p {
            margin-bottom: 14px;
            line-height: 1.8;
            font-size: 14.5px;
            color: var(--text-400);
        }

        .footer-brand .contact-info {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .footer-brand .contact-info span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-400);
        }

        .footer-brand .contact-info i {
            color: var(--primary-lighter);
        }

        .footer-ai-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .footer-ai-tags .ai-tag {
            display: inline-block;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-300);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-full);
            letter-spacing: 0.3px;
            transition: var(--transition-soft);
        }

        .footer-ai-tags .ai-tag:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.3);
            color: white;
        }

        .footer-ai-tags .ai-tag-more {
            color: var(--primary-lighter);
            border-color: rgba(96, 165, 250, 0.3);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }

        .footer-col h4 {
            color: #e2e8f0;
            font-weight: 600;
            margin-bottom: 22px;
            font-size: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col ul li {
            margin-bottom: 12px;
            list-style: none;
        }

        .footer-col a {
            font-size: 14px;
            transition: var(--transition-soft);
            color: var(--text-400);
            text-decoration: none;
            display: inline-block;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.06);
            margin-top: 56px;
            padding-top: 28px;
            text-align: center;
            font-size: 13.5px;
            color: var(--text-500);
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
        }

        .footer-bottom-inner p {
            flex: 1;
            text-align: center;
        }

        .footer-qr {
            flex-shrink: 0;
        }

        .footer-qr img {
            width: 90px;
            height: 90px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: white;
            padding: 4px;
        }

        /* ========== 悬浮联系按钮 ========== */
        .float-contact-btn {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.45);
            z-index: 999;
            transition: all 0.3s ease;
        }

        .float-contact-btn:hover {
            transform: translateY(-4px) scale(1.1);
            box-shadow: 0 12px 36px rgba(37, 99, 235, 0.55);
        }

        .float-contact-btn:active {
            transform: scale(0.96);
        }

        /* ========== 悬浮联系卡片 ========== */
        .float-contact-card {
            position: fixed;
            bottom: 96px;
            right: 28px;
            width: 260px;
            background: white;
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.06);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px) scale(0.95);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .float-contact-card.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }

        .float-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            font-size: 14px;
            font-weight: 600;
        }

        .float-close {
            cursor: pointer;
            font-size: 20px;
            line-height: 1;
            opacity: 0.85;
            transition: opacity 0.2s;
        }

        .float-close:hover {
            opacity: 1;
        }

        .float-card-body {
            padding: 16px 18px 20px;
        }

        .float-card-body p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13.5px;
            color: var(--text-700);
            margin-bottom: 8px;
        }

        .float-card-body p i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .float-card-body .btn {
            width: 100%;
            justify-content: center;
            margin-top: 12px;
            padding: 10px 0;
            font-size: 13px;
        }

        /* ========== 模态框 ========== */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.70);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-content {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            max-width: 520px;
            width: 100%;
            padding: 48px 40px 40px;
            position: relative;
            box-shadow: 0 60px 120px -24px rgba(0, 0, 0, 0.40);
            animation: fadeSlideUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        @keyframes fadeSlideUp {
            from {
                opacity: 0;
                transform: translateY(50px) scale(0.96);
            }

            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        .close-btn {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 28px;
            cursor: pointer;
            transition: var(--transition-soft);
            color: var(--text-500);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: transparent;
        }

        .close-btn:hover {
            background: var(--bg-100);
            color: var(--text-800);
        }

        .modal-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-800);
            margin-bottom: 6px;
        }

        .modal-content .sub-title {
            color: var(--text-500);
            margin-bottom: 28px;
            font-size: 14.5px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: inline-block;
            margin-bottom: 6px;
            color: var(--text-700);
            font-weight: 500;
            font-size: 14px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1.5px solid #e2e8f0;
            font-size: 15px;
            transition: var(--transition-soft);
            font-family: inherit;
            background: var(--bg-50);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px var(--primary-glow);
            outline: none;
            background: white;
        }

        .form-submit {
            width: 100%;
            justify-content: center;
            margin-top: 8px;
        }

        /* ========== 滚动动画 ========== */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .animate-on-scroll.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .faq-wrapper {
                grid-template-columns: 1fr 280px;
                gap: 32px;
            }

            .hero-statement .statement-content {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-statement .statement-quote {
                max-width: 100%;
                width: 100%;
            }

            .value-prop .vp-content {
                flex-direction: column;
                align-items: flex-start;
            }

            .value-prop .vp-tagline {
                align-self: flex-start;
            }
        }

        @media (max-width: 1024px) {

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

            .footer-wrap {
                grid-template-columns: 2fr 2fr 1fr;
                gap: 40px;
            }

            .footer-contact-qr img {
                width: 72px;
                height: 72px;
            }

            .process-wrap {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
            }

            .process-wrap::before {
                display: none;
            }

            .banner-content h1 {
                font-size: 44px;
            }

            .faq-wrapper {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .faq-sidebar {
                position: relative;
                top: 0;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .faq-sidebar-card {
                padding: 28px 24px;
            }

            .hero-statement {
                padding: 32px 28px;
            }

            .compare-box {
                flex-direction: column;
                gap: 16px;
                padding: 28px 24px;
            }

            .compare-box .cmp-divider {
                width: 80%;
                height: 1px;
            }

            .trust-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 28px;
            }

            .process-philosophy {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }

            .guarantee-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 24px;
            }

            .nav-list,
            .nav-right .tel {
                display: none;
            }

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

            .banner-content h1 {
                font-size: 34px;
            }

            .banner-content>p {
                font-size: 16px;
            }

            .section-title h2,
            .geo-deep .section-title h2,
            .faq-section .section-title h2,
            .cta-section h2 {
                font-size: 30px;
            }

            .geo-grid,
            .product-list {
                grid-template-columns: 1fr;
            }

            .process-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .process-item {
                padding: 24px 16px 20px;
            }

            .footer-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-main-content {
                grid-column: 1 / -1;
                margin: 0;
            }

            .footer-bottom-inner {
                flex-direction: column;
                gap: 14px;
            }

            .footer-bottom-inner p {
                text-align: center;
            }

            .footer-qr img {
                width: 72px;
                height: 72px;
            }

            .footer-contact-qr img {
                width: 64px;
                height: 64px;
            }

            .banner {
                background-attachment: scroll;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 20px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .faq-item.active .faq-answer {
                padding: 0 20px 20px;
            }

            .faq-sidebar {
                grid-template-columns: 1fr;
            }

            .faq-sidebar-card {
                padding: 24px 20px;
            }

            .modal-content {
                padding: 36px 24px 32px;
            }

            .platform-tip {
                font-size: 12px;
                padding: 10px 18px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .banner-btns {
                gap: 14px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 13px;
            }

            .cta-section .btn-primary {
                padding: 14px 32px;
                font-size: 15px;
            }

            .cta-section .cta-subtitle {
                font-size: 16px;
                margin-bottom: 24px;
            }

            .geo-card .geo-icon {
                width: 64px;
                height: 64px;
                font-size: 26px;
            }

            .product-item {
                padding: 32px 24px;
            }

            .geo-deep .bg-ornament,
            .geo-deep .bg-ornament-2 {
                display: none;
            }

            .hero-statement .statement-text h3 {
                font-size: 22px;
            }

            .value-prop .vp-text h3 {
                font-size: 22px;
            }

            .process-philosophy .phil-left {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-statement .statement-quote {
                font-size: 14px;
                padding: 12px 18px;
            }
        }

        @media (max-width: 480px) {
            .banner-content h1 {
                font-size: 28px;
                letter-spacing: -0.5px;
            }

            .banner-content>p {
                font-size: 14.5px;
            }

            .platform-tip {
                font-size: 11px;
                padding: 8px 16px;
                gap: 8px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 12.5px;
            }

            .banner-btns {
                gap: 10px;
                flex-direction: column;
                align-items: center;
            }

            .geo-card {
                padding: 28px 20px 24px;
            }

            .section-title h2,
            .geo-deep .section-title h2,
            .faq-section .section-title h2,
            .cta-section h2 {
                font-size: 26px;
            }

            .cta-section .cta-subtitle {
                font-size: 15px;
            }

            .process-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .process-item {
                padding: 20px 12px 18px;
            }

            .process-num {
                width: 44px;
                height: 44px;
                font-size: 18px;
                margin-bottom: 12px;
            }

            .process-item h4 {
                font-size: 15px;
            }

            .process-item p {
                font-size: 12.5px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-question .q-label {
                width: 24px;
                height: 24px;
                font-size: 10px;
            }

            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }

            .modal-content h2 {
                font-size: 22px;
            }

            .hero-statement {
                padding: 24px 18px;
            }

            .hero-statement .statement-text h3 {
                font-size: 19px;
            }

            .compare-box {
                padding: 20px 16px;
            }

            .compare-box .cmp-item {
                flex: 1 1 100%;
                justify-content: center;
            }

            .value-prop {
                padding: 24px 18px;
            }

            .value-prop .vp-text h3 {
                font-size: 20px;
            }

            .trust-bar {
                padding: 20px 16px;
            }

            .process-philosophy {
                padding: 20px 16px;
            }

            .guarantee-box {
                padding: 20px 16px;
            }

            .guarantee-box .g-left {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== Contact Form 7 表单样式适配 ========== */
        /* 让 CF7 生成的表单与原 HTML 落地页风格一致 */
        .modal-content .wpcf7 {
            margin: 0;
        }

        .modal-content .wpcf7-form {
            margin: 0;
        }

        .modal-content .wpcf7-form p {
            margin-bottom: 20px;
        }

        .modal-content .wpcf7-form p:last-of-type {
            margin-bottom: 0;
        }

        .modal-content .wpcf7-form-control {
            width: 100%;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1.5px solid #e2e8f0;
            font-size: 15px;
            transition: var(--transition-soft);
            font-family: inherit;
            background: var(--bg-50);
            color: var(--text-800);
        }

        .modal-content .wpcf7-form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px var(--primary-glow);
            outline: none;
            background: white;
        }

        .modal-content .wpcf7-textarea {
            resize: vertical;
            min-height: 80px;
        }

        .modal-content .wpcf7-submit {
            width: 100%;
            padding: 16px 24px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition-soft);
            font-family: inherit;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .modal-content .wpcf7-submit:hover {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .modal-content .wpcf7-submit:active {
            transform: translateY(0);
        }

        .modal-content .wpcf7-label {
            display: inline-block;
            margin-bottom: 6px;
            color: var(--text-700);
            font-weight: 500;
            font-size: 14px;
        }

        .modal-content .wpcf7-list-item {
            margin: 0;
        }

        .modal-content .wpcf7-not-valid-tip {
            color: #ef4444;
            font-size: 12px;
            margin-top: 4px;
        }

        .modal-content .wpcf7-validation-errors {
            background: #fef2f2;
            border: 1px solid #fecaca;
            border-radius: var(--radius-sm);
            color: #dc2626;
            padding: 12px 16px;
            font-size: 14px;
        }

        .modal-content .wpcf7-mail-sent-ok {
            background: #f0fdf4;
            border: 1px solid #bbf7d0;
            border-radius: var(--radius-sm);
            color: #16a34a;
            padding: 12px 16px;
            font-size: 14px;
        }

        .modal-content .ajax-loader {
            display: none;
        }

        /* 模态框内 h2/h3 统一样式 */
        .modal-content h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-800);
            margin-bottom: 6px;
        }

        .modal-content .sub-title {
            color: var(--text-500);
            margin-bottom: 28px;
            font-size: 14.5px;
        }

        /* ================================================================
           新闻动态 & 客户案例 区块（section-news / section-cases）
           ================================================================ */

        .news-section,
        .cases-section {
            padding: 80px 0;
            background: #fff;
        }

        .cases-section {
            background: var(--bg-gray-50);
        }

        .news-grid,
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 40px;
        }

        .news-card,
        .case-card {
            display: block;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-decoration: none;
            color: inherit;
        }

        .news-card:hover,
        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
        }

        .news-card-img,
        .case-card-img {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .news-card-img img,
        .case-card-img > img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-card-img img,
        .case-card:hover .case-card-img > img {
            transform: scale(1.05);
        }

        .news-card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: linear-gradient(135deg, var(--primary), #60a5fa);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
        }

        .case-card-cat {
            display: inline-block;
            background: rgba(59, 130, 246, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
        }

        .case-card-overlay {
            position: absolute;
            inset: 0;
            background: rgba(59, 130, 246, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .case-card-overlay i {
            font-size: 28px;
            color: #fff;
        }

        .case-card:hover .case-card-overlay {
            opacity: 1;
        }

        .news-card-body,
        .case-card-body {
            padding: 20px;
        }

        .news-card-title,
        .case-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-800);
            margin-bottom: 10px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-excerpt,
        .case-card-excerpt {
            font-size: 13.5px;
            color: var(--text-500);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .news-card-meta,
        .case-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-400);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .news-card-meta i,
        .case-card-footer i {
            margin-right: 4px;
        }

        .news-card-more,
        .case-card-link {
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .news-card-more i,
        .case-card-link i {
            transition: transform 0.2s ease;
        }

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

        .news-empty,
        .cases-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 0;
            color: var(--text-400);
        }

        .news-empty i,
        .cases-empty i {
            font-size: 48px;
            margin-bottom: 16px;
            display: block;
            color: var(--border-subtle);
        }

        .news-empty p,
        .cases-empty p {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-500);
            margin-bottom: 8px;
        }

        .news-empty span,
        .cases-empty span {
            font-size: 13px;
        }

        .section-cta {
            text-align: center;
            margin-top: 40px;
        }

        .section-cta .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .section-cta .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .section-cta .btn-outline i {
            transition: transform 0.2s ease;
        }

        .section-cta .btn-outline:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 1024px) {
            .news-grid,
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .news-grid,
            .cases-grid {
                grid-template-columns: 1fr;
            }

            .news-section,
            .cases-section {
                padding: 50px 0;
            }
        }