/* 全局样式 */
:root {
    --primary: #2ecc71;
    --primary-dark: #27ae60;
    --bg: #ffffff;
    --bg-secondary: #f8f9fa;
    --text: #2c3e50;
    --text-light: #7f8c8d;
    --card-bg: #ffffff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --radius: 16px;
    --transition: all 0.3s ease;
    --border: #e0e0e0;
    --navbar-bg: rgba(255,255,255,0.95);
    --footer-bg: #2c3e50;
    --footer-text: #ecf0f1;
}

[data-theme="dark"] {
    --bg: #1a1a2e;
    --bg-secondary: #16213e;
    --text: #e0e0e0;
    --text-light: #a0a0a0;
    --card-bg: #1e2a3a;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
    --border: #2a3a4a;
    --navbar-bg: rgba(26,26,46,0.95);
    --footer-bg: #0f0f1a;
    --footer-text: #b0b0b0;
}

/* 模板主题变量 - 科技 */
[data-template="tech"] {
    --primary: #3498db;
    --primary-dark: #2980b9;
}
/* 模板 - 时尚 */
[data-template="fashion"] {
    --primary: #e74c3c;
    --primary-dark: #c0392b;
}
/* 模板 - 美食 */
[data-template="food"] {
    --primary: #e67e22;
    --primary-dark: #d35400;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; transition: var(--transition); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }

/* 导航栏 */
.navbar {
    position: sticky; top: 0; z-index: 1000;
    background: var(--navbar-bg); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 15px 0;
    transition: var(--transition);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.6rem; font-weight: 700; color: var(--primary) !important; display: flex; align-items: center; gap: 8px; }
.logo i { font-size: 1.8rem; }
.nav-links { display: flex; gap: 25px; align-items: center; }
.nav-links a { color: var(--text); font-weight: 500; font-size: 0.95rem; position: relative; }
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--primary); transition: var(--transition);
}
.nav-links a:hover::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle, .template-toggle {
    background: none; border: 1px solid var(--border); border-radius: 50%;
    width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--text); font-size: 1.1rem; transition: var(--transition);
}
.theme-toggle:hover, .template-toggle:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.hamburger { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 12px; border: none; font-weight: 600; cursor: pointer; transition: var(--transition); font-size: 0.95rem; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(46,204,113,0.3); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-block { width: 100%; justify-content: center; }

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; padding: 80px 0; text-align: center;
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: heroGlow 10s ease-in-out infinite;
}
@keyframes heroGlow { 0%,100% { transform: translate(0,0); } 50% { transform: translate(20%,20%); } }
.hero h1 { font-size: 2.8rem; margin-bottom: 20px; position: relative; z-index: 1; }
.hero p { font-size: 1.2rem; max-width: 700px; margin: 0 auto 30px; opacity: 0.9; position: relative; z-index: 1; }
.search-box {
    max-width: 600px; margin: 0 auto; display: flex; align-items: center;
    background: #fff; border-radius: 50px; padding: 8px 8px 8px 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15); position: relative; z-index: 1;
}
.search-box i { color: var(--text-light); font-size: 1.1rem; }
.search-box input { flex: 1; border: none; outline: none; padding: 12px; font-size: 1rem; background: transparent; color: var(--text); }
.search-box button { background: var(--primary); color: #fff; border: none; border-radius: 50%; width: 48px; height: 48px; cursor: pointer; transition: var(--transition); }
.search-box button:hover { background: var(--primary-dark); transform: scale(1.05); }
.hero-tags { margin-top: 20px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; position: relative; z-index: 1; }
.hero-tags span { opacity: 0.8; }
.tag { display: inline-block; padding: 6px 16px; border-radius: 20px; background: rgba(255,255,255,0.2); color: #fff; font-size: 0.85rem; border: 1px solid rgba(255,255,255,0.3); transition: var(--transition); }
.tag:hover { background: #fff; color: var(--primary); }

/* 通用区块 */
.section { padding: 70px 0; }
.section-title { font-size: 2rem; margin-bottom: 40px; text-align: center; }
.section-title .subtitle { display: block; font-size: 1rem; color: var(--text-light); font-weight: 400; margin-top: 8px; }

/* 筛选栏 */
.filter-bar { display: flex; gap: 15px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.filter-bar select { padding: 12px 20px; border-radius: 12px; border: 1px solid var(--border); background: var(--card-bg); color: var(--text); font-size: 0.95rem; cursor: pointer; transition: var(--transition); }
.filter-bar select:focus { border-color: var(--primary); outline: none; }

/* 服务卡片网格 */
.service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; }
.service-card {
    background: var(--card-bg); border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: var(--transition); cursor: pointer;
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px rgba(0,0,0,0.15); }
.card-img { height: 200px; background-size: cover; background-position: center; position: relative; }
.card-badge { position: absolute; top: 15px; left: 15px; padding: 6px 14px; border-radius: 20px; background: var(--primary); color: #fff; font-size: 0.8rem; font-weight: 600; }
.card-body { padding: 20px; }
.card-body h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card-body p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.price { font-size: 1.3rem; font-weight: 700; color: var(--primary); }
.rating { color: #f1c40f; font-size: 0.95rem; }
.card-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 15px; }
.card-tags .tag { background: var(--bg-secondary); color: var(--text); border: none; }
.card-body .btn { width: 100%; justify-content: center; }
.share-btn { margin-top: 8px; width: 100%; }

/* 数据统计 */
.stats-section { background: var(--bg-secondary); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 25px; margin-bottom: 50px; }
.stat-card {
    text-align: center; padding: 30px 20px; background: var(--card-bg);
    border-radius: var(--radius); box-shadow: var(--shadow); transition: var(--transition);
}
.stat-card:hover { transform: translateY(-5px); }
.stat-card i { font-size: 2.5rem; color: var(--primary); margin-bottom: 15px; }
.stat-number { display: block; font-size: 2.2rem; font-weight: 700; color: var(--text); }
.stat-label { display: block; color: var(--text-light); margin-top: 5px; }

/* 热力图 */
.heatmap { background: var(--card-bg); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.heatmap h3 { margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.heatmap h3 i { color: #e74c3c; }
.heatmap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(60px, 1fr)); gap: 6px; }
.heatmap-item { height: 60px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: #fff; font-weight: 600; transition: var(--transition); cursor: pointer; }
.heatmap-item:hover { transform: scale(1.1); }

/* 页脚 */
.footer { background: var(--footer-bg); color: var(--footer-text); padding: 60px 0 20px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-col h4 { font-size: 1.1rem; margin-bottom: 20px; color: #fff; }
.footer-col a { display: block; color: var(--footer-text); margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); padding-left: 5px; }
.footer-col p { margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.social-links { display: flex; gap: 15px; margin-top: 20px; }
.social-links a { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; transition: var(--transition); }
.social-links a:hover { background: var(--primary); color: #fff; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); }

/* 弹窗 */
.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); align-items: center; justify-content: center; }
.modal-content { background: var(--card-bg); border-radius: var(--radius); padding: 40px; max-width: 500px; width: 90%; position: relative; animation: modalIn 0.3s ease; }
@keyframes modalIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.close-modal { position: absolute; top: 15px; right: 20px; font-size: 1.5rem; cursor: pointer; color: var(--text-light); transition: var(--transition); }
.close-modal:hover { color: var(--text); }
.modal h3 { margin-bottom: 25px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 0.95rem; transition: var(--transition); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); outline: none; }
.form-group textarea { resize: vertical; min-height: 80px; }

/* 管理后台 */
.admin-body { background: var(--bg-secondary); min-height: 100vh; }
.admin-login { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card { background: var(--card-bg); border-radius: var(--radius); padding: 50px; max-width: 420px; width: 100%; box-shadow: var(--shadow); }
.login-card h2 { text-align: center; margin-bottom: 30px; }
.admin-dashboard .admin-nav { background: var(--navbar-bg); border-bottom: 1px solid var(--border); padding: 15px 0; }
.admin-nav .container { display: flex; align-items: center; justify-content: space-between; }
.admin-nav-links { display: flex; gap: 20px; }
.admin-content { padding: 40px 0; }
.admin-card { background: var(--card-bg); border-radius: var(--radius); padding: 30px; margin-bottom: 30px; box-shadow: var(--shadow); }
.admin-card h2 { margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.ai-form textarea { min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 12px; text-align: left; border-bottom: 1px solid var(--border); }
.admin-table th { background: var(--bg-secondary); font-weight: 600; }
.table-responsive { overflow-x: auto; }
.success-msg { background: #d4edda; color: #155724; padding: 12px; border-radius: 8px; margin-bottom: 20px; }
.error-msg { background: #f8d7da; color: #721c24; padding: 12px; border-radius: 8px; margin-bottom: 20px; }
.mt-2 { margin-top: 15px; text-align: center; }

/* 响应式 */
@media (max-width: 768px) {
    .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%; background: var(--navbar-bg); padding: 20px; box-shadow: var(--shadow); }
    .nav-links.active { display: flex; }
    .hamburger { display: block; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .service-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* 内页通用 */
.page-hero { padding: 60px 0; text-align: center; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; }
.page-hero h1 { font-size: 2.2rem; margin-bottom: 10px; }
.page-hero p { opacity: 0.9; }
.page-content { padding: 60px 0; }

/* 价格方案卡片 */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-top: 40px; }
.pricing-card { background: var(--card-bg); border-radius: var(--radius); padding: 40px 30px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); position: relative; }
.pricing-card:hover { transform: translateY(-8px); }
.pricing-card.featured { border: 2px solid var(--primary); }
.pricing-card.featured .pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 6px 20px; border-radius: 20px; font-size: 0.85rem; }
.pricing-card h3 { font-size: 1.4rem; margin-bottom: 15px; }
.pricing-card .price { font-size: 2.5rem; margin: 20px 0; }
.pricing-card ul { list-style: none; text-align: left; margin: 20px 0; }
.pricing-card ul li { padding: 8px 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.pricing-card ul li i { color: var(--primary); }

/* 关于页 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-grid img { border-radius: var(--radius); }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; margin-top: 40px; }
.team-card { text-align: center; }
.team-card img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin-bottom: 15px; }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info h3 { margin-bottom: 15px; }
.contact-info p { margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.contact-info i { color: var(--primary); width: 24px; }

/* FAQ页 */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq-question { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; }
.faq-question i { transition: var(--transition); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.active .faq-answer { max-height: 200px; padding-top: 15px; }

/* 博客页 */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.blog-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.blog-card:hover { transform: translateY(-5px); }
.blog-card img { width: 100%; height: 200px; object-fit: cover; }
.blog-card-body { padding: 20px; }
.blog-card-body h3 { margin-bottom: 10px; }
.blog-card-body p { color: var(--text-light); margin-bottom: 15px; }
.blog-card-body .btn { width: 100%; }

/* 服务项目页 */
.services-page-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 30px; }

@media (max-width: 768px) {
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
}