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

    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #fff;
    }

    .yzde-header {
        background: #fff;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
    }

    .yzde-nav {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 70px;
    }

    .yzde-logo img {
        height: 40px;
        width: auto;
    }

    .yzde-menu-toggle {
        display: none;
        flex-direction: column;
        background: none;
        border: none;
        cursor: pointer;
        padding: 5px;
    }

    .yzde-menu-toggle span {
        width: 25px;
        height: 3px;
        background: #333;
        margin: 3px 0;
        transition: 0.3s;
    }

    .yzde-nav-menu {
        display: flex;
        list-style: none;
        gap: 40px;
    }

    .yzde-nav-menu a {
        text-decoration: none;
        color: #333;
        font-weight: 500;
        transition: color 0.3s;
        position: relative;
    }

    .yzde-nav-menu a:hover {
        color: #4285f4;
    }

    .yzde-nav-menu a.active {
        color: #4285f4;
    }

    .yzde-nav-menu a.active::after {
        content: '';
        position: absolute;
        bottom: -8px;
        left: 0;
        right: 0;
        height: 2px;
        background: #4285f4;
    }

    .yzde-nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .yzde-page-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 120px 0 80px;
        text-align: center;
    }

    .yzde-page-header .yzde-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .yzde-page-title {
        font-size: 3.5rem;
        font-weight: 700;
        margin-bottom: 20px;
        background: linear-gradient(45deg, #fff, #e3f2fd);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .yzde-page-subtitle {
        font-size: 1.3rem;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto;
        line-height: 1.8;
    }

    .yzde-vip-plans {
        padding: 80px 0;
        background: #f8f9fa;
    }

    .yzde-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .yzde-section-title {
        text-align: center;
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 20px;
        color: #333;
    }

    .yzde-section-subtitle {
        text-align: center;
        font-size: 1.1rem;
        color: #666;
        margin-bottom: 60px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .yzde-plans-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
        margin-bottom: 60px;
    }

    .yzde-plan-card {
        background: white;
        border-radius: 20px;
        padding: 40px 30px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        overflow: hidden;
    }

    .yzde-plan-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    }

    .yzde-plan-card.featured {
        border: 3px solid #4285f4;
        transform: scale(1.05);
    }

    .yzde-plan-card.featured::before {
        content: '推荐';
        position: absolute;
        top: 20px;
        right: -30px;
        background: #4285f4;
        color: white;
        padding: 5px 40px;
        font-size: 0.9rem;
        font-weight: 600;
        transform: rotate(45deg);
    }

    .yzde-plan-name {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 10px;
        color: #333;
    }

    .yzde-plan-desc {
        color: #666;
        margin-bottom: 30px;
        font-size: 1rem;
    }

    .yzde-plan-price {
        display: flex;
        align-items: baseline;
        margin-bottom: 30px;
    }

    .yzde-price-symbol {
        font-size: 1.5rem;
        color: #4285f4;
        font-weight: 600;
    }

    .yzde-price-amount {
        font-size: 3rem;
        font-weight: 700;
        color: #4285f4;
        margin: 0 5px;
    }

    .yzde-price-period {
        font-size: 1rem;
        color: #666;
    }

    .yzde-original-price {
        text-decoration: line-through;
        color: #999;
        font-size: 1rem;
        margin-left: 10px;
    }

    .yzde-plan-features {
        list-style: none;
        margin-bottom: 40px;
    }

    .yzde-plan-features li {
        padding: 8px 0;
        display: flex;
        align-items: center;
        color: #555;
    }

    .yzde-plan-features li::before {
        content: '✓';
        color: #4caf50;
        font-weight: bold;
        margin-right: 12px;
        font-size: 1.2rem;
    }

    .yzde-plan-btn {
        width: 100%;
        padding: 15px;
        border: none;
        border-radius: 10px;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        text-decoration: none;
        display: inline-block;
        text-align: center;
    }

    .yzde-plan-btn.primary {
        background: linear-gradient(135deg, #4285f4, #34a853);
        color: white;
    }

    .yzde-plan-btn.primary:hover {
        background: linear-gradient(135deg, #3367d6, #2e7d32);
        transform: translateY(-2px);
    }

    .yzde-plan-btn.secondary {
        background: #f1f3f4;
        color: #333;
        border: 2px solid #e0e0e0;
    }

    .yzde-plan-btn.secondary:hover {
        background: #e8eaed;
        border-color: #4285f4;
    }

    .yzde-enterprise-section {
        background: linear-gradient(135deg, #1a237e 0%, #3949ab 100%);
        color: white;
        padding: 80px 0;
        text-align: center;
    }

    .yzde-enterprise-content {
        max-width: 800px;
        margin: 0 auto;
    }

    .yzde-enterprise-title {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .yzde-enterprise-desc {
        font-size: 1.2rem;
        margin-bottom: 40px;
        opacity: 0.9;
        line-height: 1.8;
    }

    .yzde-enterprise-features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 30px;
        margin-bottom: 50px;
    }

    .yzde-enterprise-feature {
        text-align: center;
    }

    .yzde-enterprise-feature-icon {
        font-size: 3rem;
        margin-bottom: 15px;
        display: block;
    }

    .yzde-enterprise-feature-title {
        font-size: 1.2rem;
        font-weight: 600;
        margin-bottom: 10px;
    }

    .yzde-enterprise-feature-desc {
        font-size: 0.95rem;
        opacity: 0.8;
    }

    .yzde-contact-btn {
        background: white;
        color: #1a237e;
        padding: 15px 40px;
        border: none;
        border-radius: 10px;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        text-decoration: none;
        display: inline-block;
    }

    .yzde-contact-btn:hover {
        background: #f5f5f5;
        transform: translateY(-2px);
    }

    .yzde-benefits-section {
        padding: 80px 0;
        background: white;
    }

    .yzde-benefits-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 40px;
    }

    .yzde-benefit-card {
        text-align: center;
        padding: 40px 20px;
        border-radius: 15px;
        background: #f8f9fa;
        transition: transform 0.3s;
    }

    .yzde-benefit-card:hover {
        transform: translateY(-5px);
    }

    .yzde-benefit-icon {
        font-size: 4rem;
        margin-bottom: 20px;
        display: block;
    }

    .yzde-benefit-title {
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 15px;
        color: #333;
    }

    .yzde-benefit-desc {
        color: #666;
        line-height: 1.8;
    }

    .yzde-comparison-section {
        padding: 80px 0;
        background: #f8f9fa;
    }

    .yzde-comparison-table {
        background: white;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .yzde-table-header {
        background: linear-gradient(135deg, #4285f4, #34a853);
        color: white;
        padding: 30px 0;
        text-align: center;
    }

    .yzde-table-title {
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .yzde-table-subtitle {
        opacity: 0.9;
    }

    .yzde-table-content {
        padding: 40px;
    }

    .yzde-comparison-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 20px;
        align-items: center;
    }

    .yzde-feature-row {
        display: contents;
    }

    .yzde-feature-name {
        font-weight: 600;
        color: #333;
        padding: 15px 0;
        border-bottom: 1px solid #eee;
    }

    .yzde-feature-value {
        text-align: center;
        padding: 15px 0;
        border-bottom: 1px solid #eee;
        color: #666;
    }

    .yzde-feature-value.check {
        color: #4caf50;
        font-weight: bold;
    }

    .yzde-feature-value.cross {
        color: #f44336;
    }

    .yzde-column-header {
        font-weight: 700;
        text-align: center;
        padding: 20px 0;
        border-bottom: 2px solid #4285f4;
        color: #4285f4;
    }

    .yzde-footer {
        background: #1a1a1a;
        color: #ccc;
        padding: 60px 0 30px;
    }

    .yzde-footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
    }

    .yzde-footer-section h3 {
        color: white;
        font-size: 1.2rem;
        margin-bottom: 20px;
        font-weight: 600;
    }

    .yzde-footer-section ul {
        list-style: none;
    }

    .yzde-footer-section ul li {
        margin-bottom: 10px;
    }

    .yzde-footer-section ul li a {
        color: #ccc;
        text-decoration: none;
        transition: color 0.3s;
    }

    .yzde-footer-section ul li a:hover {
        color: #4285f4;
    }

    .yzde-footer-bottom {
        border-top: 1px solid #333;
        margin-top: 40px;
        padding-top: 20px;
        text-align: center;
        color: #999;
    }

    @media (max-width: 768px) {
        .yzde-menu-toggle {
            display: flex;
        }

        .yzde-nav-menu {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: white;
            flex-direction: column;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            gap: 20px;
        }

        .yzde-nav-menu.active {
            display: flex;
        }

        .yzde-nav-overlay.active {
            display: block;
        }

        .yzde-page-title {
            font-size: 2.5rem;
        }

        .yzde-page-subtitle {
            font-size: 1.1rem;
        }

        .yzde-plans-grid {
            grid-template-columns: 1fr;
        }

        .yzde-plan-card.featured {
            transform: none;
        }

        .yzde-comparison-grid {
            grid-template-columns: 1fr;
            gap: 10px;
        }

        .yzde-column-header {
            display: none;
        }

        .yzde-feature-row {
            display: block;
            background: white;
            margin-bottom: 20px;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .yzde-feature-name {
            border-bottom: none;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .yzde-feature-value {
            border-bottom: none;
            text-align: left;
            padding: 5px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .yzde-feature-value::before {
            content: attr(data-label);
            font-weight: 600;
            color: #333;
        }
    }

    @media (max-width: 480px) {
        .yzde-page-header {
            padding: 100px 0 60px;
        }

        .yzde-page-title {
            font-size: 2rem;
        }

        .yzde-section-title {
            font-size: 2rem;
        }

        .yzde-plan-card {
            padding: 30px 20px;
        }

        .yzde-price-amount {
            font-size: 2.5rem;
        }
    }