:root {
    --pd-blue: #007AFF;
    --pd-green: #a8bba1;
    --pd-bg: #f5f5f7;
}

body {
    margin: 0;
    padding: 0;
    background: var(--pd-bg);
    background-image: radial-gradient(circle at 0% 0%, #e0e7ff 0%, transparent 40%),
        radial-gradient(circle at 100% 100%, #fef3c7 0%, transparent 40%);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
    color: #1d1d1f;
    -webkit-font-smoothing: antialiased;
}

/* 统一容器 */
.page-wrapper {
    max-width: 1100px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* Hero 区域 */
.hero {
    text-align: center;
    margin-bottom: 60px;
}

.hero h1 {
    font-size: clamp(32px, 5vw, 48px);
    letter-spacing: -1.5px;
    margin-bottom: 15px;
    font-weight: 700;
}

.hero p {
    color: #6e6e73;
    font-size: clamp(16px, 3vw, 20px);
    max-width: 600px;
    margin: 0 auto;
}

/* 套餐网格 */
.pricing-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    margin-bottom: 80px;
}

.price-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-sizing: border-box;
}

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

/* Most Popular 标签 */
.price-card.popular {
    border: 2.5px solid var(--pd-green);
}

.badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pd-green);
    color: white;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.tier-name {
    font-size: 20px;
    font-weight: 600;
    color: #1d1d1f;
}

.price {
    font-size: 56px;
    font-weight: 700;
    margin: 25px 0;
    letter-spacing: -2px;
}

.price span {
    font-size: 18px;
    color: #86868b;
    font-weight: normal;
    letter-spacing: 0;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
    flex: 1;
}

.features-list li {
    margin-bottom: 14px;
    font-size: 15px;
    display: flex;
    align-items: flex-start;
    color: #3c4043;
}

.features-list li::before {
    content: "✓";
    color: var(--pd-green);
    font-weight: bold;
    margin-right: 12px;
    font-size: 16px;
}

/* 按钮：液态玻璃感 */
.btn-subscribe {
    width: 100%;
    padding: 16px;
    border-radius: 14px;
    border: none;
    background: var(--pd-blue);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(0, 122, 255, 0.3);
    text-align: center;
    text-decoration: none;
}

.btn-subscribe:hover {
    background: #0066d6;
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

/* 对比表格区域 */
.comparison-area {
    margin-top: 100px;
}

.comparison-area h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
    letter-spacing: -1px;
}

.table-container {
    width: 100%;
    overflow-x: auto;
    /* 移动端横向滚动 */
    background: rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

th,
td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

th {
    background: rgba(0, 0, 0, 0.02);
    font-weight: 600;
    color: #86868b;
    font-size: 13px;
    text-transform: uppercase;
}

td {
    font-size: 15px;
}

.check-icon {
    color: var(--pd-green);
    font-weight: bold;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 80px 20px 40px;
    color: #86868b;
    font-size: 13px;
}

footer a {
    color: #86868b;
    text-decoration: none;
    margin: 0 10px;
}

footer a:hover {
    color: var(--pd-blue);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .pricing-grid {
        flex-direction: column;
        align-items: center;
    }

    .price-card {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 32px;
    }

    .comparison-area h2 {
        font-size: 26px;
    }
}



/* Hero 按钮组容器 */
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

/* 基础按钮样式 */
.btn-hero {
    padding: 14px 32px;
    border-radius: 30px;
    /* 更圆润，像胶囊 */
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 主按钮 (实心) - 引导去付费 */
.btn-hero.primary {
    background: #1d1d1f;
    /* 黑色或深蓝 */
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-hero.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 副按钮 (描边) - 引导去体验 */
.btn-hero.secondary {
    background: white;
    color: #1d1d1f;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.btn-hero.secondary:hover {
    border-color: #a8bba1;
    /* 莫兰迪绿 */
    color: #2c5e2e;
    background: #fdfbf7;
}