/* index.html 样式抽取 */

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

        :root {
            --primary-color: #0891b2;
            --secondary-color: #0e7490;
            --accent-color: #f43f5e;
            --success-color: #10b981;
            --bg-main: #0f172a;
            --bg-card: #1e293b;
            --text-dark: #f8fafc;
            --text-light: #94a3b8;
            --border-color: #334155;
            --gradient: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            --bg-module-1: #1e293b;
            --bg-module-2: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
            --bg-module-3: #111827;
            --bg-module-4: linear-gradient(180deg, #1e293b 0%, #164e63 100%);
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-main);
            color: var(--text-dark);
            line-height: 1.6;
        }

        .container {
            max-width: 1680px;
            margin: 0 auto;
            padding: 0 40px;
        }

        /* ===== Banner / Hero Section ===== */
        .hero {
            padding-top: 110px;
            padding-bottom: 80px;
            background: linear-gradient(180deg, #164e63 0%, #0f172a 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .hero p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 30px;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-hero {
            padding: 14px 36px;
            font-size: 1rem;
        }

        /* 隐藏浮动花哨卡片 官网不需要 */
        .banner-cards-container {
            display: none !important;
        }

        /* 通用模块标题 */
        .section {
            padding: 60px 0;
        }
        .section-header {
            padding-top: 52px;
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 2rem;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 1rem;
        }

        /* ========== 公司业务介绍板块样式 ========== */
        .business-intro {
            background: var(--bg-card);
            border-radius: 24px;
            margin: 0 40px;
            padding: 60px 40px;
        }
        .business-box {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .business-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
        }
        .business-text p {
            font-size: 1rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .business-service {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 25px;
        }
        .service-item {
            padding: 8px 18px;
            background: var(--bg-module-2);
            border-radius: 30px;
            font-size: 0.9rem;
            color: #22d3ee;
            border: 1px solid var(--border-color);
        }
        .business-img-box {
            width: 100%;
            height: 360px;
            background: var(--bg-module-2);
            border-radius: 16px;
            box-shadow: var(--shadow);
            object-fit: cover;
            width:100%;
            height:100%;
        }

        /* 以下全部还原你原有原版结构，只跟随主题色 */
        #categories {
            background-color: var(--bg-module-1);
            border-radius: 24px;
            margin: 0 40px;
            padding: 60px 40px;
        }

        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .category-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: all 0.3s;
            cursor: pointer;
        }

        .category-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-color);
        }

        .category-icon {
            width: 55px;
            height: 55px;
            background: var(--gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.4rem;
            color: white;
        }

        .category-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .category-card p {
            color: var(--text-light);
            font-size: 0.88rem;
        }

        #featured-plans {
            background: var(--bg-module-2);
            border-radius: 24px;
            margin: 30px 40px;
            padding: 60px 40px;
        }

        .featured-plans-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-template-rows: 300px 300px;
            gap: 30px;
        }

        .featured-plan-card {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow);
            background-repeat: no-repeat;
            background-position: center center;
            background-size: cover;
        }

        .featured-plan-card.large {
            grid-row: span 2;
        }

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

        .featured-plan-card .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
            color: white;
        }

        .featured-plan-card .tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--primary-color);
            border-radius: 20px;
            font-size: 0.75rem;
            margin-bottom: 10px;
        }

        .featured-plan-card h3 {
            font-size: 1.4rem;
            margin-bottom: 8px;
        }

        .featured-plan-card p {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .featured-plan-card .price {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--accent-color);
            color: white;
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
        }

        #hot-plans {
            background-color: var(--bg-module-3);
            border-radius: 24px;
            margin: 30px 40px;
            padding: 60px 40px;
        }

        .hot-plans-wrapper {
            display: flex;
            gap: 30px;
        }

        .hot-plans-main {
            flex: 2;
        }

        .hot-plans-sidebar {
            flex: 1;
        }

        .hot-plan-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hot-plan-item {
            display: flex;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
            position: relative;
        }

        .hot-plan-item:hover {
            transform: translateX(10px);
            border-color: var(--primary-color);
        }

        .hot-plan-item .item-image {
            flex: 0 0 180px;
            background-size: cover;
            background-position: center;
        }
        .hot-plan-item .item-image img{
            width:100%;
            height:100%;
            object-fit:cover;
        }

        .hot-plan-item .item-content {
            flex: 1;
            padding: 20px;
        }

        .hot-plan-item h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .hot-plan-item p {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .hot-plan-item .item-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 15px;
        }

        .hot-plan-item .item-price {
            color: var(--accent-color);
            font-weight: 700;
            font-size: 1.2rem;
        }

        .hot-rank-badge {
            position: absolute;
            top: 15px;
            left: 15px;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: white;
            font-size: 1rem;
        }

        .rank-1 {
            background: linear-gradient(135deg, #ffd700, #ffaa00);
        }

        .rank-2 {
            background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
        }

        .rank-3 {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
        }

        #other-plans {
            background: var(--bg-module-4);
            border-radius: 24px;
            margin: 30px 40px;
            padding: 60px 40px;
        }

        .other-plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }

        .standard-plan-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .standard-plan-card:hover {
            transform: translateY(-8px);
        }

        .standard-plan-card .card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
        }
        .standard-plan-card .card-image img{
            width:100%;
            height:100%;
            object-fit:cover;
        }

        .standard-plan-card .card-content {
            padding: 20px;
        }

        .standard-plan-card h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .standard-plan-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 15px;
        }

        .standard-plan-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 15px;
            border-top: 1px solid var(--border-color);
        }

        .standard-plan-card .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .standard-plan-card .author-avatar {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--gradient);
        }

        .standard-plan-card .price {
            font-weight: 700;
            color: var(--accent-color);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            text-align: center;
        }

        .step-card {
            padding: 30px 20px;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .step-number {
            width: 65px;
            height: 65px;
            background: var(--gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 auto 20px;
            color: white;
        }

        .step-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .step-card p {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .stats-section {
            background: linear-gradient(135deg, #164e63 0%, #0f172a 100%);
            padding: 50px 20px;
            border-radius: 24px;
            margin: 30px 40px;
        }

        .stats-grid {
            display: flex;
            justify-content: center;
            gap: 80px;
            flex-wrap: wrap;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            color: var(--text-light);
            margin-top: 8px;
        }

        .cta-section {
            background: var(--gradient);
            padding: 60px 20px;
            text-align: center;
            border-radius: 24px;
            margin: 30px 40px;
            color: white;
        }

        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 15px;
        }

        .cta-section .btn-primary {
            background: white;
            color: var(--primary-color);
        }

        /* Responsive */
        @media (max-width: 1400px) {
            .banner-card {
                display: none;
            }
        }

        @media (max-width: 1200px) {
            /* 业务板块自适应 */
            .business-box {
                grid-template-columns: 1fr;
            }
            .business-img-box {
                height: 280px;
            }

            .featured-plans-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .featured-plan-card.large {
                grid-row: span 1;
                grid-column: span 2;
            }
            .hot-plans-wrapper {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .business-intro {
                margin: 0 20px;
                padding: 40px 20px;
            }

            .nav-links {
                display: none;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .featured-plans-grid,
            .steps-grid,
            .footer-content {
                grid-template-columns: 1fr;
            }
            .featured-plan-card.large {
                grid-column: span 1;
            }
            .hot-plan-item {
                flex-direction: column;
            }
            .hot-plan-item .item-image {
                flex: 0 0 150px;
            }
            #categories,
            #featured-plans,
            #hot-plans,
            #other-plans,
            .stats-section,
            .cta-section {
                margin-left: 20px;
                margin-right: 20px;
                padding: 40px 20px;
            }
        }
    

    a{
        text-decoration: none;
    }
    /* Header */
    header {
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 1000;
        background: rgba(15, 23, 42, 0.85);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid #334155;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    }

    nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 70px;
    }

    .logo {
        font-size: 1.2rem;
        font-weight: 700;
        background: linear-gradient(135deg, #22d3ee 0%, #06b6d4 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .nav-links {
        display: flex;
        gap: 35px;
        list-style: none;
    }

    .nav-links a {
        color: #94a3b8;
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s;
    }

    .nav-links a:hover {
        color: #22d3ee;
    }

    .nav-buttons {
        display: flex;
        gap: 15px;
    }

    .btn {
        padding: 10px 24px;
        border-radius: 8px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        border: none;
        font-size: 0.9rem;
    }

    .btn-outline {
        background: transparent;
        border: 2px solid #06b6d4;
        color: #06b6d4;
    }

    .btn-outline:hover {
        background: #06b6d4;
        color: #0f172a;
    }

    .btn-primary {
        background: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
        color: white;
        box-shadow: 0 4px 15px rgba(6, 182, 212, 0.35);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(6, 182, 212, 0.45);
    }


    footer {
        background: #0f172a;
        padding: 50px 40px;
        color: white;
        margin-top: 30px;
    }
   
    .footer-bottom {
        text-align: center;
        padding-top: 30px;
        margin-top: 30px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
      
        font-size: 0.85rem;
        max-width: 1680px;
        margin: 30px auto 0;
    }