*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; overflow-x: hidden; background: #fdf6f0; color: #2d1b0e; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; position: relative; overflow: hidden; }
.section:nth-child(even) { background: #f7ede4; }

/* 导航 — 固定顶部 */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(253, 246, 240, 0.92); backdrop-filter: blur(12px); border-bottom: 1px solid #e8d5c4; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.3rem; text-decoration: none; color: #2d1b0e; letter-spacing: 0.5px; }
.logo-icon { width: 40px; height: 40px; background: linear-gradient(135deg, #f5a623, #e07b3a); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: #fff; box-shadow: 0 4px 12px rgba(240, 147, 43, 0.3); }
.main-nav { display: flex; align-items: center; gap: 28px; list-style: none; }
.main-nav a { text-decoration: none; font-size: 0.9rem; font-weight: 500; color: #5a3e2b; transition: all 0.3s; position: relative; padding: 4px 0; }
.main-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: #e07b3a; transition: width 0.3s; }
.main-nav a:hover { color: #e07b3a; }
.main-nav a:hover::after { width: 100%; }
.nav-cta { padding: 10px 24px; border-radius: 50px; background: linear-gradient(135deg, #f5a623, #e07b3a); color: #fff !important; font-weight: 600; box-shadow: 0 4px 16px rgba(240, 147, 43, 0.35); transition: all 0.3s !important; }
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(240, 147, 43, 0.45); }
.menu-toggle { display: none; width: 36px; height: 36px; align-items: center; justify-content: center; cursor: pointer; color: #5a3e2b; font-size: 1.4rem; }

/* 首页Hero */
.hero { min-height: 72vh; display: flex; align-items: center; position: relative; background: linear-gradient(120deg, #fdf6f0 0%, #f7ede4 50%, #f0e1d4 100%); padding-top: 68px; }
.hero::before { content: ''; position: absolute; top: -30%; right: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(245, 166, 35, 0.08) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
.hero-content { max-width: 720px; position: relative; z-index: 1; }
.hero-eyebrow { display: inline-block; font-size: 0.8rem; font-weight: 700; padding: 6px 18px; border-radius: 50px; background: linear-gradient(135deg, #f5a623, #e07b3a); color: #fff; margin-bottom: 20px; letter-spacing: 1.5px; text-transform: uppercase; }
.hero h1 { font-size: 3.2rem; line-height: 1.15; margin-bottom: 20px; color: #2d1b0e; font-weight: 800; letter-spacing: -1px; }
.hero p { font-size: 1.1rem; color: #6b4f3a; max-width: 560px; margin-bottom: 36px; line-height: 1.7; }
.hero-buttons { display: flex; gap: 16px; }
.hero-image { border-radius: 20px; overflow: hidden; box-shadow: 0 20px 60px rgba(45, 27, 14, 0.08); transform: rotate(2deg); transition: transform 0.4s; }
.hero-image:hover { transform: rotate(0deg); }
.hero-image img { width: 100%; height: auto; display: block; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; border-radius: 50px; font-weight: 600; cursor: pointer; border: none; text-decoration: none; transition: all 0.3s; font-size: 0.95rem; }
.btn-primary { background: linear-gradient(135deg, #f5a623, #e07b3a); color: #fff; box-shadow: 0 4px 16px rgba(240, 147, 43, 0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(240, 147, 43, 0.45); }
.btn-outline { background: transparent; border: 2px solid #e07b3a; color: #e07b3a; }
.btn-outline:hover { background: linear-gradient(135deg, #f5a623, #e07b3a); color: #fff; border-color: transparent; }

/* 标签/标题 */
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 3px; margin-bottom: 12px; color: #e07b3a; text-transform: uppercase; }
.section-title { font-size: 2.2rem; margin-bottom: 14px; color: #2d1b0e; font-weight: 800; letter-spacing: -0.5px; }
.section-desc { max-width: 600px; color: #6b4f3a; margin-bottom: 44px; line-height: 1.7; font-size: 1.05rem; }

/* 卡片网格 */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
.category-card { border-radius: 20px; padding: 32px; background: #fff; border: 1px solid #e8d5c4; transition: all 0.4s; position: relative; overflow: hidden; }
.category-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, #f5a623, #e07b3a); transform: scaleX(0); transform-origin: left; transition: transform 0.4s; }
.category-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(45, 27, 14, 0.08); border-color: #e07b3a; }
.category-card:hover::before { transform: scaleX(1); }
.card-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, #fdf6f0, #f7ede4); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; font-size: 1.5rem; color: #e07b3a; }
.card-link { font-weight: 600; font-size: 0.85rem; text-decoration: none; color: #e07b3a; display: inline-flex; align-items: center; gap: 6px; transition: gap 0.3s; }
.card-link:hover { gap: 12px; }

/* 特性块 */
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature-image { border-radius: 20px; overflow: hidden; box-shadow: 0 20px 60px rgba(45, 27, 14, 0.06); }
.feature-image img { width: 100%; height: auto; display: block; }
.feature-text { }
.feature-list { list-style: none; }
.feature-list li { padding: 8px 0; display: flex; align-items: center; gap: 12px; color: #5a3e2b; font-size: 1.05rem; }
.feature-list li::before { content: '✦'; font-weight: 700; color: #f5a623; font-size: 1.2rem; }

/* 数据条 */
.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.stat-item { padding: 32px 20px; border-radius: 20px; background: #fff; border: 1px solid #e8d5c4; transition: all 0.4s; }
.stat-item:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(45, 27, 14, 0.06); border-color: #f5a623; }
.stat-number { font-size: 2.6rem; font-weight: 800; color: #2d1b0e; line-height: 1; }
.stat-label { font-size: 0.9rem; color: #8a6e58; margin-top: 8px; }

/* 内容墙 */
.content-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.content-wall-item { border-radius: 20px; overflow: hidden; background: #fff; border: 1px solid #e8d5c4; transition: all 0.4s; }
.content-wall-item:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(45, 27, 14, 0.08); }
.content-wall-item img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.4s; }
.content-wall-item:hover img { transform: scale(1.05); }
.content-wall-body { padding: 24px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid #e8d5c4; border-radius: 16px; margin-bottom: 12px; overflow: hidden; cursor: pointer; background: #fff; transition: all 0.3s; }
.faq-item:hover { border-color: #f5a623; }
.faq-item .faq-question { padding: 20px 24px; font-weight: 600; display: flex; justify-content: space-between; align-items: center; color: #2d1b0e; font-size: 1.05rem; }
.faq-item .faq-question::after { content: '+'; font-size: 1.4rem; color: #e07b3a; transition: transform 0.3s; }
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 24px 20px; display: none; color: #6b4f3a; line-height: 1.7; }
.faq-item.open .faq-answer { display: block; }

/* CTA横幅 */
.cta-banner { padding: 64px 24px; text-align: center; border-radius: 24px; background: linear-gradient(135deg, #f5a623, #e07b3a); color: #fff; position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); border-radius: 50%; }
.cta-banner h2 { color: #fff; font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; position: relative; }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 28px; position: relative; }
.cta-banner .btn-primary { background: #fff; color: #e07b3a; box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding: 64px 0 32px; background: #2d1b0e; color: rgba(255, 255, 255, 0.8); }
.site-footer .container { }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand { }
.footer-brand .logo { color: #fff; }
.footer-brand p { margin-top: 16px; line-height: 1.7; font-size: 0.9rem; }
.footer-col { }
.footer-col h4 { color: #f5a623; font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1.5px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: rgba(255, 255, 255, 0.7); text-decoration: none; font-size: 0.9rem; transition: color 0.3s; }
.footer-col a:hover { color: #f5a623; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 48px; padding-top: 24px; text-align: center; font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); }

/* 工具类 */
.text-accent { color: #e07b3a; }
.text-center { text-align: center; }
.seo-description { max-width: 600px; margin: 0 auto 48px; color: #6b4f3a; line-height: 1.7; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; width: 100%; background: #fdf6f0; padding: 24px; gap: 16px; border-bottom: 1px solid #e8d5c4; }
  .hero h1 { font-size: 2.4rem; }
  .hero { min-height: 60vh; }
  .section-title { font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
  .hero h1 { font-size: 2rem; }
  .stat-number { font-size: 2rem; }
}