:root {
            /* 暖色调色板 */
            --primary: #E07A5F;
            --primary-hover: #D0684C;
            --secondary: #F2CC8F;
            --bg-body: #FDFBF7;
            --bg-card: #FFFFFF;
            --bg-muted: #F4F1EB;
            --text-dark: #3D405B;
            --text-muted: #7A7D94;
            --accent-green: #81B29A;
            
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 12px rgba(61, 64, 91, 0.05);
            --shadow-md: 0 16px 40px rgba(224, 122, 95, 0.08);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-dark);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-hover); }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航头 */
        header {
            background: rgba(253, 251, 247, 0.9);
            backdrop-filter: blur(16px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(61, 64, 91, 0.05);
            padding: 20px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 24px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .nav-links a {
            margin-left: 24px;
            font-weight: 500;
            color: var(--text-dark);
        }
        .nav-links a:hover { color: var(--primary); }

        /* Hero */
        .hero {
            padding: 100px 0 80px;
            text-align: center;
            background: linear-gradient(135deg, #FFF9F2 0%, #FDFBF7 100%);
            border-bottom: 1px solid var(--bg-muted);
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: 24px;
            color: var(--text-dark);
            letter-spacing: -1px;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 32px;
        }
        .notice-box {
            display: inline-block;
            background: rgba(224, 122, 95, 0.1);
            color: var(--primary);
            padding: 12px 24px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
        }

        /* Section 通用 */
        .section { padding: 80px 0; }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 48px;
            text-align: center;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            background: var(--secondary);
            margin: 16px auto 0;
            border-radius: 4px;
        }

        /* 介绍卡片 */
        .intro-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }
        .intro-card {
            background: var(--bg-card);
            padding: 40px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(61, 64, 91, 0.05);
        }
        .intro-card h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .info-list { list-style: none; }
        .info-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--bg-muted);
            display: flex;
            justify-content: space-between;
        }
        .info-list li:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
        .info-list li strong { color: var(--text-dark); }
        .info-list li span { color: var(--text-muted); }

        /* 优势列表 */
        .advantages {
            background: var(--bg-card);
            padding: 48px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(61, 64, 91, 0.05);
            border-top: 6px solid var(--accent-green);
        }
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 32px;
        }
        .adv-item {
            position: relative;
            padding-left: 36px;
        }
        .adv-item::before {
            content: '✦';
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent-green);
            font-size: 1.2rem;
        }
        .adv-item strong {
            display: block;
            color: var(--text-dark);
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .adv-item p { color: var(--text-muted); font-size: 0.95rem; }

        /* 机房标签 */
        .dc-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .chip {
            background: var(--bg-card);
            border: 1px solid var(--bg-muted);
            color: var(--text-dark);
            padding: 12px 24px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .chip:hover {
            background: var(--primary);
            color: #FFF;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* 套餐列表，搬瓦工.com */
        .plan-category { margin-bottom: 80px; }
        .plan-category-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .plan-category-header h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-dark);
            display: inline-block;
            background: linear-gradient(120deg, transparent 0%, transparent 60%, rgba(242, 204, 143, 0.4) 60%, rgba(242, 204, 143, 0.4) 100%);
        }
        .plan-category-header p {
            color: var(--text-muted);
            margin-top: 12px;
        }
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .plan-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(61, 64, 91, 0.05);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            position: relative;
        }
        .plan-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: rgba(224, 122, 95, 0.3);
        }
        .plan-header {
            border-bottom: 1px solid var(--bg-muted);
            padding-bottom: 24px;
            margin-bottom: 24px;
            text-align: center;
        }
        .plan-name {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-dark);
        }
        .plan-specs {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
        }
        .plan-specs li {
            display: flex;
            justify-content: space-between;
            margin-bottom: 16px;
            color: var(--text-muted);
            font-size: 1rem;
            align-items: center;
        }
        .plan-specs li strong {
            color: var(--text-dark);
            font-weight: 700;
            font-size: 1.1rem;
            background: var(--bg-muted);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
        }
        .btn {
            display: inline-block;
            width: 100%;
            padding: 16px;
            background: var(--primary);
            color: white;
            text-align: center;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background: var(--primary-hover);
            box-shadow: 0 8px 24px rgba(224, 122, 95, 0.3);
            color: white;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }

        /* 教程与底部 */
        .tutorials {
            text-align: center;
            background: var(--bg-card);
            padding: 60px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(61, 64, 91, 0.05);
        }
        
        footer {
            background: var(--text-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 40px;
            text-align: center;
            margin-top: 80px;
        }
        footer a { color: #FFF; margin: 0 12px; font-weight: 500; }
        footer a:hover { color: var(--secondary); }

        @media (max-width: 768px) {
            .hero h1 { font-size: 2.2rem; }
            .section { padding: 50px 0; }
            .plan-category-header h3 { font-size: 1.5rem; }
            .intro-card, .advantages, .plan-card, .tutorials { padding: 24px; }
            .nav-links { display: none; }
        }