/* ========== CSS Reset & Variables ========== */
        :root {
            --primary: #1a56db;
            --primary-dark: #1042a3;
            --primary-light: #e8f0fe;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --text-dark: #1e293b;
            --text-gray: #64748b;
            --text-light: #94a3b8;
            --bg-white: #ffffff;
            --bg-gray: #f8fafc;
            --bg-dark: #0f172a;
            --border: #e2e8f0;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        ul {
            list-style: none;
        }

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

        .container {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26,86,219,0.35);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245,158,11,0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: var(--primary-light);
        }

        /* ========== Header ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .header.scrolled {
            box-shadow: var(--shadow);
        }

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

        .logo {
            display: grid;
            grid-template-columns: 150px auto;
            align-items: center;
            width: 460px;
            flex-shrink: 0;
        }

        .logo-box {
            width: 64px; height: 64px;
            display: inline-flex; align-items: center; justify-content: center;
            border-radius: 0;
            background: transparent;
            box-shadow: none;
            flex-shrink: 0;
            overflow: visible;
            grid-column: 1;
            justify-self: center;
        }

        .logo-icon {
            width: 100%; height: 100%;
            background: linear-gradient(135deg, var(--primary), #3b82f6);
            border-radius: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 26px;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            justify-content: center;
            line-height: 1.25;
            min-width: 0;
            grid-column: 2;
            justify-self: start;
            padding-left: 14px;
        }

        .logo-text strong {
            font-size: 22px;
            color: var(--text-dark);
            line-height: 1.2;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text span {
            font-size: 13px;
            color: var(--text-gray);
            line-height: 1.2;
            margin-top: 2px;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-menu a,
        .nav-wechat > a {
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 13.5px;
            color: #334155;
            transition: var(--transition);
            font-weight: 500;
            letter-spacing: 0.6px;
            white-space: nowrap;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .nav-menu a:hover,
        .nav-menu a.active,
        .nav-wechat > a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-wechat {
            position: relative;
            display: inline-flex;
        }

        .wechat-pop {
            display: none;
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%);
            background: #fff;
            border-radius: 12px;
            padding: 12px;
            box-shadow: 0 10px 32px rgba(15, 23, 42, 0.18);
            z-index: 999;
            text-align: center;
        }

        .wechat-pop::before {
            content: "";
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            border: 8px solid transparent;
            border-top: none;
            border-bottom: 8px solid #fff;
        }

        .wechat-pop img {
            width: 160px;
            height: 160px;
            object-fit: contain;
            display: block;
        }

        .wechat-pop span {
            display: block;
            margin-top: 8px;
            font-size: 12px;
            color: #64748b;
            white-space: nowrap;
        }

        .nav-wechat:hover .wechat-pop {
            display: block;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-cta .phone {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 2px;
        }

        /* ========== Hero Section ========== */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #f0f9ff 100%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26,86,219,0.08) 0%, transparent 70%);
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
        }

        .hero .container {
            position: relative;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(26,86,219,0.1);
            color: var(--primary);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

                .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: flex-start;
            align-items: baseline;
            gap: 0 18px;
        }

        .hero-title-row span {
            white-space: normal;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(26,86,219,0.15);
            z-index: -1;
            border-radius: 4px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-gray);
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 56px;
            padding-top: 36px;
            border-top: 1px solid var(--border);
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }

        .hero-stat .label {
            font-size: 14px;
            color: var(--text-gray);
            margin-top: 4px;
        }

        /* Hero Visual */
        .hero-visual {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 520px;
            z-index: 1;
        }

        .hero-card {
            background: #fff;
            border-radius: 16px;
            padding: 26px 28px;
            box-shadow: var(--shadow-lg);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .hero-card:nth-child(2) {
            margin-left: 48px;
        }

        .hero-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 40px rgba(30, 64, 175, 0.14);
        }

        .hero-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .hero-card-title {
            font-weight: 600;
            font-size: 15px;
        }

        .hero-card-badge {
            background: #dcfce7;
            color: #16a34a;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
        }

        .hero-card-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 14px;
        }

        .hero-card-row:last-child {
            border-bottom: none;
        }

        .hero-card-row .value {
            font-weight: 600;
            color: var(--primary);
            font-size: 15px;
            white-space: nowrap;
            margin-left: 16px;
        }

        /* ========== Trust Bar ========== */
        .trust-bar {
            background: var(--bg-dark);
            padding: 20px 0;
        }

        .trust-bar-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 60px;
            flex-wrap: wrap;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255,255,255,0.8);
            font-size: 14px;
        }

        .trust-item svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }

        /* ========== Section Common ========== */
        .section {
            padding: 100px 0;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-gray);
            line-height: 1.8;
        }

        /* ========== Products Section ========== */
        .products {
            background: var(--bg-white);
        }

        .product-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .product-tab {
            padding: 12px 28px;
            border-radius: 50px;
            border: 2px solid var(--border);
            background: #fff;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-gray);
            cursor: pointer;
            transition: var(--transition);
        }

        .product-tab.active,
        .product-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .product-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .product-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .product-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #3b82f6);
            transform: scaleX(0);
            transition: var(--transition);
        }

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

        .product-card:hover::before {
            transform: scaleX(1);
        }

        .product-card.featured {
            border-color: var(--primary);
        }

        .product-card-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
        }

        .product-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        .product-icon.blue {
            background: linear-gradient(135deg, #eff6ff, #dbeafe);
            color: var(--primary);
        }

        .product-icon.orange {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            color: var(--accent-dark);
        }

        .product-icon.green {
            background: linear-gradient(135deg, #f0fdf4, #dcfce7);
            color: #16a34a;
        }

        .product-icon.purple {
            background: linear-gradient(135deg, #faf5ff, #f3e8ff);
            color: #7c3aed;
        }

        .product-name {
            font-size: 20px;
            font-weight: 700;
        }

        .product-tag {
            font-size: 13px;
            color: var(--text-gray);
            margin-top: 2px;
        }

        .product-price {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .product-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-gray);
        }

        .product-desc {
            font-size: 15px;
            color: var(--text-gray);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .product-features {
            margin-bottom: 28px;
        }

        .product-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-dark);
        }

        .product-features li svg {
            width: 18px;
            height: 18px;
            fill: #16a34a;
            flex-shrink: 0;
        }

        .product-cta {
            display: flex;
            gap: 12px;
        }

        .product-cta .btn {
            padding: 12px 24px;
            font-size: 14px;
        }

        /* ========== Features Section ========== */
        .features {
            background: var(--bg-gray);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 32px;
            text-align: left;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .feature-card:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
            transform: translateY(-2px);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 22px;
        }

        .feature-icon.fi-blue { background: #eff6ff; color: var(--primary); }
        .feature-icon.fi-orange { background: #fffbeb; color: var(--accent-dark); }
        .feature-icon.fi-green { background: #f0fdf4; color: #16a34a; }
        .feature-icon.fi-purple { background: #faf5ff; color: #7c3aed; }
        .feature-icon.fi-red { background: #fef2f2; color: #dc2626; }
        .feature-icon.fi-teal { background: #f0fdfa; color: #0d9488; }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.7;
        }

        /* ========== Scenarios Section ========== */
        .scenarios {
            background: #fff;
        }

        .scenario-tabs {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .scenario-tab {
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: #fff;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-gray);
            cursor: pointer;
            transition: var(--transition);
        }

        .scenario-tab.active,
        .scenario-tab:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .scenario-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .scenario-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .scenario-text p {
            font-size: 15px;
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .scenario-list {
            margin-bottom: 32px;
        }

        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
        }

        .scenario-list li .check {
            width: 24px;
            height: 24px;
            background: #dcfce7;
            color: #16a34a;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .scenario-visual {
            background: linear-gradient(135deg, var(--primary-light), #f0f9ff);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .scenario-mockup {
            background: #fff;
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow);
            text-align: left;
        }

        .mockup-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid #f1f5f9;
        }

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

        .mockup-dot.r { background: #ef4444; }
        .mockup-dot.y { background: #f59e0b; }
        .mockup-dot.g { background: #22c55e; }

        .mockup-title {
            margin-left: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-gray);
        }

        .mockup-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid #f8fafc;
            font-size: 14px;
        }

        .mockup-row:last-child {
            border-bottom: none;
        }

        .mockup-label {
            color: var(--text-gray);
        }

        .mockup-value {
            font-weight: 700;
            color: var(--primary);
        }

        .mockup-value.green {
            color: #16a34a;
        }

        /* ========== Comparison Section ========== */
        .comparison {
            background: var(--bg-gray);
        }

        .comparison-table {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

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

        .comparison-table th {
            background: var(--primary);
            color: #fff;
            padding: 18px 24px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
        }

        .comparison-table th:first-child {
            background: var(--bg-dark);
        }

        .comparison-table td {
            padding: 16px 24px;
            border-bottom: 1px solid #f1f5f9;
            font-size: 14px;
        }

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

        .comparison-table tr:hover td {
            background: #f8fafc;
        }

        .comparison-table .row-header {
            font-weight: 600;
            color: var(--text-dark);
            background: #f8fafc;
        }

        .check-icon {
            color: #16a34a;
            font-weight: 700;
        }

        .dash-icon {
            color: var(--text-light);
        }

        /* ========== Testimonials ========== */
        .testimonials {
            background: #fff;
        }

        /* ===== 客户案例照片网格 ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.case-card {
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform .3s ease, box-shadow .3s ease;
    cursor: pointer;
}
.case-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.case-photo {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #f1f5f9;
}
.case-photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s ease;
}
.case-card:hover .case-photo img {
    transform: scale(1.04);
}
@media (max-width: 768px) {
    .case-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}
@media (max-width: 480px) {
    .case-grid { grid-template-columns: 1fr; }
}
.testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: var(--bg-gray);
            border-radius: var(--radius);
            padding: 32px;
            transition: var(--transition);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow);
        }

        .testimonial-quote {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.8;
            margin-bottom: 24px;
            position: relative;
        }

        .testimonial-quote::before {
            content: '"';
            font-size: 48px;
            color: var(--primary);
            opacity: 0.2;
            position: absolute;
            top: -16px;
            left: -8px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .author-info {
            display: flex;
            align-items: baseline;
            flex-wrap: wrap;
            gap: 4px 12px;
        }

        .author-info strong {
            font-size: 15px;
            white-space: nowrap;
        }

        .author-info span {
            font-size: 13px;
            color: var(--text-gray);
            white-space: nowrap;
        }

        .author-info span::before {
            content: "·";
            margin-right: 12px;
            color: #cbd5e1;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255,255,255,0.03);
        }

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

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255,255,255,0.8);
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* ========== Footer ========== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }

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

        .footer-brand .logo-icon {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 14px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            padding: 6px 0;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
        }

        .footer-contact li svg {
            width: 18px;
            height: 18px;
            fill: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 13px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .footer-social a.c-gzh { background: linear-gradient(135deg,#07C160,#04a552); }
        .footer-social a.c-sph { background: linear-gradient(135deg,#1E6FFF,#0b5fe0); }
        .footer-social a.c-dy { background: linear-gradient(135deg,#26262b,#000000); }
        .footer-social a.c-xhs { background: linear-gradient(135deg,#FF2442,#e6122f); }
        .footer-social a.c-wx { background: linear-gradient(135deg,#07C160,#04a552); }

        .footer-social a:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(0,0,0,0.3);
        }

        /* ========== Floating Contact ========== */
        .floating-contact {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            font-size: 20px;
        }

        .float-btn.phone {
            background: var(--primary);
            color: #fff;
        }

        .float-btn.phone:hover {
            background: var(--primary-dark);
            transform: scale(1.1);
        }

        .float-btn.top {
            background: #fff;
            color: var(--text-gray);
            font-size: 22px;
        }

        .float-btn.top:hover {
            background: var(--primary);
            color: #fff;
        }

        .float-btn.wechat {
            position: relative;
            background: #07C160;
            color: #fff;
        }

        .float-btn.wechat:hover {
            background: #06ad56;
            transform: scale(1.1);
        }

        .float-wechat-pop {
            display: none;
            position: absolute;
            right: calc(100% + 14px);
            top: 50%;
            transform: translateY(-50%);
            background: #fff;
            border-radius: 12px;
            padding: 12px;
            box-shadow: 0 10px 32px rgba(15, 23, 42, 0.18);
            z-index: 999;
            text-align: center;
        }

        .float-wechat-pop::after {
            content: "";
            position: absolute;
            right: -8px;
            top: 50%;
            transform: translateY(-50%);
            border: 8px solid transparent;
            border-right: none;
            border-left: 8px solid #fff;
        }

        .float-wechat-pop img {
            width: 160px;
            height: 160px;
            object-fit: contain;
            display: block;
        }

        .float-wechat-pop span {
            display: block;
            margin-top: 8px;
            font-size: 12px;
            color: #64748b;
            white-space: nowrap;
        }

        .float-btn.wechat:hover .float-wechat-pop {
            display: block;
        }

        /* 中宽窗口：隐藏电话保持导航一行 */
        @media (max-width: 1200px) {
            .nav-cta .phone { display: none; }
            .nav-menu a { padding: 6px 8px; font-size: 12px; }
        }

        /* ========== Responsive ========== */
        /* 中宽窗口（1025~1200px）：缩小 hero 两栏尺寸，避免文字与卡片重叠 */
        @media (max-width: 1200px) and (min-width: 1025px) {
            .hero-content { max-width: 520px; }
            .hero-visual { width: 440px; }
        }

        @media (max-width: 1024px) {
            .hero h1 { font-size: 38px; }
            .hero-visual { display: none; }
            .product-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(3, 1fr); }
            .footer-brand { grid-column: 1 / -1; }
        }

        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .mobile-toggle { display: flex; }
            .hero { padding: 120px 0 60px; }
            .hero h1 { font-size: 30px; }
            .hero p { font-size: 16px; }
            .hero-stats { gap: 24px; }
            .hero-stat .number { font-size: 24px; }
            .section { padding: 60px 0; }
            .section-title { font-size: 26px; }
            .features-grid { grid-template-columns: 1fr; }
            .scenario-content { grid-template-columns: 1fr; gap: 30px; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .comparison-table { overflow-x: auto; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .cta-section h2 { font-size: 26px; }
            .trust-bar-content { gap: 24px; }
        }
    

/* ===== SeoCms 补充样式（产品过滤 / 留资表单 / 提示条） ===== */
.product-card.hidden { display: none; }

.lead-form-section { background: #fff; }
.lead-form-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-light), #f0f9ff);
    border-radius: 20px;
    padding: 48px;
}
.lead-form-left h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; color: var(--text-dark); }
.lead-form-left p { font-size: 15px; color: var(--text-gray); line-height: 1.8; margin-bottom: 16px; }
.lead-form-right { background: #fff; border-radius: 16px; padding: 32px; box-shadow: var(--shadow); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; }
.form-group input, .form-group textarea {
    width: 100%; padding: 12px 14px; border: 1px solid var(--border);
    border-radius: 8px; font-size: 14px; color: var(--text-dark);
    box-sizing: border-box; transition: var(--transition); font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}
.form-note { font-size: 12px; color: var(--text-light); text-align: center; margin-top: 12px; }
.form-tip { padding: 12px 16px; border-radius: 8px; font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.form-tip.success { background: #dcfce7; color: #16a34a; }
.form-tip.error { background: #fee2e2; color: #dc2626; }

@media (max-width: 768px) {
    .lead-form-box { grid-template-columns: 1fr; padding: 24px; }
    .lead-form-left h2 { font-size: 24px; }
}


/* ===== 图片Logo（后台可上传，独立框内 100% 填充） ===== */
.logo-img {
    width: 100%; height: 100%;
    object-fit: contain;
    flex-shrink: 0;
    background: transparent;
}
.footer-brand .footer-title strong {
    font-size: 18px;
    display: block;
}

.footer-brand .footer-en {
    display: block;
    color: rgba(255, 255, 255, 0.55);
    font-size: 12px;
    margin-top: 4px;
    letter-spacing: 0.5px;
}
.footer-brand .logo-icon {
    margin-bottom: 0;
}
/* ========== 社交品牌图标（页脚底部） ========== */
.c-gzh { background: linear-gradient(135deg, #07C160, #04a552); }
.c-sph { background: linear-gradient(135deg, #1E6FFF, #0b5fe0); }
.c-dy { background: linear-gradient(135deg, #26262b, #000000); }
.c-xhs { background: linear-gradient(135deg, #FF2442, #e6122f); }
.c-wx { background: linear-gradient(135deg, #07C160, #04a552); }

/* 二维码弹层（点击页脚图标淡出，定位跟随图标） */
.qr-popup {
    position: fixed;
    z-index: 999;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    background: #fff;
    border-radius: 12px;
    padding: 8px 10px 10px;
    box-shadow: 0 10px 32px rgba(15, 23, 42, 0.18);
    animation: qrFade 1s cubic-bezier(.22,1,.36,1) both;
}
.qr-popup::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -6px;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #fff;
}
.qr-popup img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 8px;
    display: block;
}
.qr-popup span {
    font-size: 12px;
    color: #64748b;
}
@keyframes qrFade {
    0% { opacity: 0; transform: translateY(12px) scale(.86); filter: blur(6px); }
    55% { opacity: 1; transform: translateY(-2px) scale(1.03); filter: blur(1px); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

@media (max-width: 768px) {
    .qr-popup { padding: 6px 8px 8px; }
    .qr-popup img { width: 67px; height: 67px; }
}
/* ===== 权威认证证书区（核心优势下方，纯净融入页面） ===== */
.feature-cert {
    margin: 4px 0 30px;
    text-align: center;
}
.feature-cert-img {
    display: inline-block;
    max-width: 720px;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease;
    cursor: pointer;
    will-change: transform;
}
.feature-cert-img:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(30, 64, 175, 0.16);
}
.feature-cert-img img {
    display: block;
    width: 100%;
    height: auto;
}.feature-cert-note {
    margin: 16px auto 0;
    max-width: 640px;
    font-size: 14px;
    line-height: 1.9;
    color: #64748b;
}

@media (max-width: 768px) {
    .feature-cert-img { max-width: 100%; }
}