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

:root {
    --primary-color: #6B46C1;
    --secondary-color: #F59E0B;
    --dark-bg: #1F2937;
    --darker-bg: #111827;
    --text-light: #F9FAFB;
    --text-gray: #D1D5DB;
    --card-bg: #374151;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏 */
header {
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    padding: 20px 0;
    border-bottom: 2px solid var(--primary-color);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.site-title {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
    position: relative;
}

nav a:hover {
    color: var(--secondary-color);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 0;
    font-size: 14px;
    color: var(--text-gray);
}

.breadcrumb a {
    color: var(--text-gray);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--secondary-color);
}

.breadcrumb span {
    margin: 0 8px;
}

/* Hero区域 */
.hero-section {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 60px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.8) 0%, rgba(17, 24, 39, 0.9) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(107, 70, 193, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(107, 70, 193, 0.6);
}

/* 章节标题 */
.section {
    padding: 60px 0;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 18px;
    margin-bottom: 50px;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(107, 70, 193, 0.3);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.card-text {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.card-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.stars {
    color: var(--secondary-color);
    font-size: 18px;
}

/* 内容区域 */
.content-block {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.content-block h2 {
    font-size: 28px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.content-block h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-top: 25px;
    margin-bottom: 15px;
}

.content-block p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.content-block ul {
    list-style: none;
    padding-left: 0;
}

.content-block li {
    color: var(--text-gray);
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.content-block li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* FAQ区域 */
.faq-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.faq-question {
    font-size: 20px;
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.faq-answer {
    color: var(--text-gray);
    line-height: 1.8;
}

/* 评论区域 */
.review-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reviewer-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.reviewer-name {
    font-weight: bold;
    color: var(--text-light);
}

.reviewer-location {
    font-size: 14px;
    color: var(--text-gray);
}

.review-date {
    font-size: 14px;
    color: var(--text-gray);
}

.review-text {
    color: var(--text-gray);
    line-height: 1.8;
    margin-top: 10px;
}

/* 支付方式 */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.payment-item {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
}

.payment-item:hover {
    transform: scale(1.05);
}

.payment-icon {
    width: 100%;
    height: auto;
    max-width: 120px;
    margin: 0 auto;
}

/* 标签云 */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.tag-item {
    display: inline-block;
    padding: 12px 25px;
    background: var(--card-bg);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 25px;
    font-size: 16px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.tag-item:hover {
    background: var(--primary-color);
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* 页脚 */
footer {
    background: var(--darker-bg);
    padding: 50px 0 20px;
    margin-top: 80px;
    border-top: 2px solid var(--primary-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--secondary-color);
    font-size: 20px;
    margin-bottom: 20px;
}

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

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

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--card-bg);
    color: var(--text-gray);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-wrapper {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        justify-content: center;
        gap: 15px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .content-block {
        padding: 25px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* 图片优化 */
img {
    max-width: 100%;
    height: auto;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* 辅助类 */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

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