/* ====================
   牛量猿随身WiFi 产品页面样式
   ==================== */

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a56db;
    --secondary-color: #ff6b35;
    --accent-gold: #f5a623;
    --text-dark: #1a1a2e;
    --text-light: #666;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background: var(--bg-light);
}

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

/* Hero区域 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: pulse 15s infinite linear;
}

@keyframes pulse {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 20px;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
}

.btn-primary:hover {
    background: #e55a28;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: #764ba2;
}

/* 统计数据区域 */
.stats-section {
    background: var(--white);
    padding: 50px 0;
    margin-top: -40px;
    position: relative;
    z-index: 3;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.stat-label {
    color: var(--text-light);
    font-size: 14px;
    margin-top: 8px;
}

/* 品牌介绍 */
.brand-section {
    padding: 80px 0;
    background: var(--white);
}

.brand-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.brand-content h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 20px;
    position: relative;
}

.brand-content h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.brand-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 16px;
}

.brand-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: var(--bg-light);
    border-radius: 10px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
}

.feature-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
}

.brand-image {
    position: relative;
}

.brand-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* 产品系列标题 */
.section-header {
    text-align: center;
    padding: 60px 0 40px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.section-header .highlight {
    color: var(--secondary-color);
}

/* 产品卡片 */
.products-section {
    padding: 20px 0 80px;
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--secondary-color);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 2;
}

.product-badge.hot {
    background: #ef4444;
}

.product-badge.new {
    background: #10b981;
}

.product-image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-info {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.product-tagline {
    color: var(--primary-color);
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: 500;
}

.product-description {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.spec-item {
    background: var(--bg-light);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.spec-item i {
    color: var(--primary-color);
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.product-price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 12px;
    color: var(--text-light);
}

.price-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
}

.commission-info {
    text-align: right;
}

.commission-label {
    font-size: 12px;
    color: var(--text-light);
}

.commission-value {
    font-size: 18px;
    font-weight: 700;
    color: #10b981;
}

.product-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

.btn-product {
    flex: 1;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.btn-detail {
    background: var(--bg-light);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-detail:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-promote {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
}

.btn-promote:hover {
    background: #e55a28;
}

/* 适用场景 */
.scenarios-section {
    padding: 80px 0;
    background: var(--white);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.scenario-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.scenario-card:hover {
    background: var(--white);
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.scenario-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
}

.scenario-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.scenario-desc {
    font-size: 13px;
    color: var(--text-light);
}

/* 推广优势 */
.promotion-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--white);
}

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

.promotion-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 35px;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition);
}

.promotion-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.promotion-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-gold));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 35px;
}

.promotion-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.promotion-desc {
    font-size: 14px;
    opacity: 0.85;
    line-height: 1.7;
}

/* 佣金说明 */
.commission-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.commission-table {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.commission-table table {
    width: 100%;
    border-collapse: collapse;
}

.commission-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.commission-table th,
.commission-table td {
    padding: 18px 20px;
    text-align: left;
}

.commission-table th {
    font-weight: 600;
    font-size: 15px;
}

.commission-table tbody tr {
    border-bottom: 1px solid #eee;
    transition: var(--transition);
}

.commission-table tbody tr:hover {
    background: var(--bg-light);
}

.commission-table td {
    font-size: 14px;
}

.commission-highlight {
    color: var(--secondary-color);
    font-weight: 700;
}

/* 教程区域 */
.tutorial-section {
    padding: 80px 0;
    background: var(--white);
}

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

.tutorial-card {
    position: relative;
    padding: 30px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.tutorial-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.tutorial-number {
    position: absolute;
    top: -15px;
    left: 30px;
    width: 40px;
    height: 40px;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.tutorial-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-top: 15px;
    margin-bottom: 12px;
}

.tutorial-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* 常见问题 */
.faq-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 15px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    background: var(--primary-color);
    color: var(--white);
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 300px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* CTA区域 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    text-align: center;
    color: var(--white);
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-desc {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 36px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .promotion-grid {
        grid-template-columns: 1fr;
    }
    
    .tutorial-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 50px 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-features {
        grid-template-columns: 1fr;
    }
    
    .commission-table {
        overflow-x: auto;
    }
    
    .cta-title {
        font-size: 28px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 产品对比表格 */
.comparison-section {
    padding: 80px 0;
    background: var(--white);
}

.comparison-table {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    color: var(--white);
}

.comparison-table th,
.comparison-table td {
    padding: 18px 15px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    font-weight: 600;
    font-size: 14px;
}

.comparison-table tbody tr:hover {
    background: var(--bg-light);
}

.comparison-table td {
    font-size: 13px;
}

.comparison-check {
    color: #10b981;
    font-size: 18px;
}

.comparison-x {
    color: #ef4444;
    font-size: 18px;
}

/* 品牌故事区域 */
.story-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.story-card {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.story-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

.story-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.story-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* 客户评价 */
.testimonial-section {
    padding: 80px 0;
    background: var(--white);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.testimonial-content {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
    font-style: italic;
}

.testimonial-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.testimonial-role {
    font-size: 12px;
    color: var(--primary-color);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 用户评价星星 */
.stars {
    color: #f5a623;
    margin-bottom: 10px;
    font-size: 14px;
}

/* 视频介绍区域 */
.video-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.video-container {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.video-placeholder {
    height: 400px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.play-button {
    width: 80px;
    height: 80px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin-bottom: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.play-button:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
}

/* ====================
   双轨佣金制度样式
   ==================== */

/* 双轨收益卡片 */
.dual-income-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.dual-income-card {
    background: var(--white);
    border-radius: 20px;
    padding: 35px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.dual-income-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.sales-card::before {
    background: linear-gradient(90deg, var(--primary-color), #818cf8);
}

.package-card::before {
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-gold));
}

.dual-income-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.dual-income-icon {
    font-size: 50px;
    margin-bottom: 15px;
}

.dual-income-card h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.dual-income-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.dual-income-highlight {
    font-size: 16px;
    color: var(--text-light);
}

.dual-income-highlight span {
    font-size: 32px;
    font-weight: 700;
    color: var(--secondary-color);
    display: block;
    margin-top: 5px;
}

/* 佣金区块 */
.commission-block {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.commission-block-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--bg-light);
}

.block-icon {
    font-size: 24px;
}

/* 套餐高亮 */
.package-highlight {
    color: var(--secondary-color);
    font-weight: 700;
}

/* 收益计算器 */
.income-calculator {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    color: var(--white);
}

.calculator-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 24px;
    margin-bottom: 30px;
}

.calculator-icon {
    font-size: 28px;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.calculator-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
}

.calculator-item.highlight {
    background: rgba(255, 107, 53, 0.2);
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.calculator-item.total {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-gold));
}

.calc-label {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 10px;
}

.calc-value {
    font-size: 28px;
    font-weight: 700;
}

.calc-value span {
    font-size: 14px;
    font-weight: 400;
    opacity: 0.8;
}

.calculator-note {
    text-align: center;
    font-size: 14px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.calculator-note strong {
    color: var(--accent-gold);
}

/* 升级信息 */
.upgrade-info {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.upgrade-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.upgrade-card {
    background: var(--bg-light);
    border-radius: 15px;
    padding: 25px 35px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
    max-width: 350px;
}

.upgrade-card.premium {
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    color: var(--white);
}

.upgrade-badge {
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.upgrade-card.premium .upgrade-badge {
    background: rgba(255, 255, 255, 0.2);
}

.upgrade-content h5 {
    font-size: 16px;
    margin-bottom: 10px;
}

.upgrade-content ul {
    list-style: none;
    font-size: 13px;
}

.upgrade-content li {
    margin-bottom: 5px;
}

.upgrade-card.premium .upgrade-content li {
    color: rgba(255, 255, 255, 0.9);
}

.upgrade-arrow {
    font-size: 30px;
    color: var(--text-light);
}

/* ====================
   企业级增强样式
   ==================== */

/* 增强Hero区域 */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
    position: relative;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* 统计数据增强 */
.stats-section {
    background: var(--white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-item {
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, #ddd, transparent);
}

.stat-item:last-child::after {
    display: none;
}

/* 品牌区域增强 */
.brand-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--bg-light) 100%);
}

.brand-content h2::after {
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* 产品卡片增强 */
.product-card {
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover::before {
    opacity: 1;
}

/* 场景卡片增强 */
.scenario-card {
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.scenario-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.scenario-card:hover::after {
    transform: scaleX(1);
}

/* 推广优势增强 */
.promotion-card {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.promotion-card:hover {
    border-color: var(--secondary-color);
}

/* 教程卡片增强 */
.tutorial-card {
    border: 1px solid transparent;
}

.tutorial-card:hover {
    border-color: var(--primary-color);
}

/* FAQ增强 */
.faq-item {
    border: 1px solid transparent;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(26, 86, 219, 0.1);
}

/* CTA区域增强 */
.cta-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
    animation: pulse 10s infinite linear;
}

/* 产品对比表格增强 */
.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

/* 品牌故事增强 */
.story-card {
    border: 1px solid transparent;
}

.story-card:hover {
    border-color: var(--primary-color);
}

/* 客户评价增强 */
.testimonial-card {
    border: 1px solid transparent;
}

.testimonial-card:hover {
    border-color: var(--primary-color);
}

/* ====================
   动画增强
   ==================== */

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* ====================
   响应式增强
   ==================== */

@media (max-width: 992px) {
    .dual-income-grid {
        grid-template-columns: 1fr;
    }
    
    .calculator-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .upgrade-grid {
        flex-direction: column;
    }
    
    .upgrade-arrow {
        transform: rotate(90deg);
    }
    
    .upgrade-card {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
    
    .commission-table {
        font-size: 12px;
    }
    
    .commission-table th,
    .commission-table td {
        padding: 12px 8px;
    }
}