:root {
    --primary-blue: #2A3B8F;
    --accent-blue: #4D7CFE;
    --dark-gray: #2D3436;
    --light-gray: #F9FBFF;
    --highlight: #FFD700;
    --green: #2ECC71;
    --red: #FF4757;
}

* {
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
}

body {
    background: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 页头样式 */
.header {
    text-align: center;
    margin-bottom: 60px;
}

.header h1 {
    color: var(--primary-blue);
    font-size: 2.5em;
    margin-bottom: 15px;
}

.subtitle {
    color: #666;
    font-size: 1.2em;
    margin-bottom: 20px;
}

.badge {
    background: var(--highlight);
    color: var(--dark-gray);
    padding: 8px 25px;
    border-radius: 20px;
    display: inline-block;
    font-weight: 600;
}

/* 套餐卡片 */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(42,59,143,0.1);
    transition: transform 0.3s;
    position: relative;
}

.card.pro {
    border: 2px solid var(--accent-blue);
    transform: scale(1.05);
}

.card-badge {
    background: rgba(77,124,254,0.1);
    color: var(--accent-blue);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    margin-bottom: 20px;
    display: inline-block;
}

.price {
    color: var(--primary-blue);
    font-size: 2.5em;
    margin: 20px 0;
    font-weight: 700;
}

.price sup {
    font-size: 0.5em;
    vertical-align: super;
}

.features {
    list-style: none;
    margin: 20px 0;
}

.features li {
    padding: 12px 0;
    display: flex;
    align-items: center;
}

.features li i {
    margin-right: 10px;
    width: 20px;
}

.fa-check {
    color: var(--green);
}

/* 战略资源模块 */
.strategic-resources {
    background: white;
    padding: 60px 20px;
    margin: 80px -20px;
    border-radius: 15px;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 40px auto;
}

.resource-card {
    padding: 30px;
    border-radius: 15px;
    background: var(--light-gray);
}

.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.icon-box.blue {
    background: var(--accent-blue);
}

.icon-box.green {
    background: var(--green);
}

.icon-box i {
    color: white;
    font-size: 1.8rem;
}

/* 对比表格 */
.comparison-table {
    margin: 60px 0;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th {
    background: var(--primary-blue);
    color: white;
    padding: 20px;
    text-align: left;
}

td {
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.highlight {
    color: var(--green);
    font-weight: 600;
}



/* 基础服务模块 */
.service-tier {
    margin: 20px 0;
    padding: 20px;
    background: rgba(249,251,255,0.9);
    border-radius: 10px;
    border: 1px solid #e8f1ff;
}

.service-tier h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 专属权益模块 */
.service-tier.bonus {
    background: linear-gradient(135deg, #f8faff, #ebf3ff);
    border: 1px solid var(--accent-blue);
    position: relative;
}

.service-tier.bonus::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 20px;
    width: 30px;
    height: 30px;
    background: var(--accent-blue);
    transform: rotate(45deg);
    z-index: -1;
}

/* 核心优势模块 */
.core-advantages {
    margin: 80px 0;
    padding: 40px 20px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(42,59,143,0.05);
}

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

.advantage-card {
    padding: 30px;
    border-radius: 15px;
    background: var(--light-gray);
}

.advantage-card h3 {
    color: var(--primary-blue);
    margin: 20px 0 10px;
}

.icon-box {
    width: 60px;
    height: 60px;
    background: var(--accent-blue);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-box i {
    color: white;
    font-size: 1.5rem;
}
.green { color: var(--green); }
.red { color: var(--red); }

/* 响应式设计 */
@media (max-width: 768px) {
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .card.pro {
        transform: none;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
}