*, *::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: #fcf9f5; color: #2d3436; }

/* 核心布局 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section { padding: 80px 0; }

.section:nth-child(even) { background: linear-gradient(135deg, #f9f3ef 0%, #f0edf5 100%); }

/* 导航 */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255, 252, 245, 0.92); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(225, 112, 85, 0.15); }

.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: 8px; font-weight: 800; font-size: 1.3rem; text-decoration: none; color: #e17055; letter-spacing: -0.5px; }

.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, #e17055, #ffeaa7); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: #fff; }

.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: #636e72; transition: color 0.2s; position: relative; padding: 4px 0; }

.main-nav a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: #e17055; transition: width 0.3s; }

.main-nav a:hover { color: #e17055; }

.main-nav a:hover::after { width: 100%; }

.nav-cta { padding: 8px 22px !important; border-radius: 20px; background: linear-gradient(135deg, #e17055, #b0553e); color: #fff !important; font-weight: 600; box-shadow: 0 2px 8px rgba(225, 112, 85, 0.25); transition: transform 0.2s, box-shadow 0.2s; }

.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(225, 112, 85, 0.35); }

.nav-cta::after { display: none; }

.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: #e17055; cursor: pointer; padding: 8px; }

/* 首页Hero */
.hero { min-height: 80vh; display: flex; align-items: center; background: radial-gradient(circle at 20% 30%, #fff5ec 0%, #fcf9f5 60%); position: relative; overflow: hidden; }

.hero::before { content: ''; position: absolute; top: -20%; right: -15%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(0, 206, 201, 0.08) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }

.hero-content { max-width: 680px; position: relative; z-index: 1; }

.hero-eyebrow { display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 3px; padding: 6px 18px; border-radius: 20px; background: #ffeaa7; color: #b0553e; margin-bottom: 20px; }

.hero h1 { font-size: 3.4rem; line-height: 1.15; margin-bottom: 20px; font-weight: 800; color: #2d3436; letter-spacing: -1px; }

.hero h1 .text-accent { color: #e17055; }

.hero p { font-size: 1.1rem; opacity: 0.75; max-width: 540px; margin-bottom: 32px; line-height: 1.7; }

.hero-buttons { display: flex; gap: 14px; }

.hero-image { flex: 1; max-width: 400px; border-radius: 20px; overflow: hidden; box-shadow: 20px 20px 40px rgba(225, 112, 85, 0.1), -10px -10px 30px rgba(255, 255, 255, 0.8); margin-left: auto; }

.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: 30px; font-weight: 600; cursor: pointer; border: none; text-decoration: none; transition: all 0.25s; font-size: 0.95rem; }

.btn-primary { color: #fff; background: linear-gradient(135deg, #e17055, #c0684d); box-shadow: 0 4px 14px rgba(225, 112, 85, 0.3); }

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(225, 112, 85, 0.4); }

.btn-outline { background: transparent; border: 2px solid #e17055; color: #e17055; }

.btn-outline:hover { background: rgba(225, 112, 85, 0.08); transform: translateY(-1px); }

/* 标签/标题 */
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: #b0553e; background: linear-gradient(90deg, #fff0e6, transparent); padding: 4px 16px 4px 0; margin-bottom: 12px; }

.section-title { font-size: 2.4rem; font-weight: 700; margin-bottom: 14px; color: #2d3436; letter-spacing: -0.5px; }

.section-desc { max-width: 600px; opacity: 0.65; margin-bottom: 48px; 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: 16px; padding: 32px 28px; background: #fff; border: 1px solid rgba(225, 112, 85, 0.1); box-shadow: 0 1px 4px rgba(0,0,0,0.02); transition: all 0.3s; }

.category-card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(225, 112, 85, 0.08), 0 2px 8px rgba(0,0,0,0.04); border-color: #e17055; }

.card-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; font-size: 1.4rem; background: linear-gradient(135deg, #e17055, #ffeaa7); color: #fff; }

.card-icon.emerald { background: linear-gradient(135deg, #00b894, #55efc4); }

.card-icon.lavender { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }

.card-link { font-weight: 600; font-size: 0.85rem; text-decoration: none; color: #e17055; display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; }

.card-link:hover { color: #b0553e; gap: 10px; }

/* 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 16px 32px rgba(0,0,0,0.04); }

.feature-image img { width: 100%; height: auto; display: block; }

.feature-text { }

.feature-list { list-style: none; margin-top: 20px; }

.feature-list li { padding: 10px 0; display: flex; align-items: center; gap: 12px; font-size: 1rem; }

.feature-list li::before { content: '✓'; font-weight: 700; color: #00b894; 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 16px; border-radius: 16px; background: #fff; border: 1px solid rgba(225, 112, 85, 0.08); box-shadow: 0 4px 12px rgba(0,0,0,0.02); transition: transform 0.25s; }

.stat-item:hover { transform: scale(1.02); }

.stat-number { font-size: 2.6rem; font-weight: 800; background: linear-gradient(135deg, #e17055, #ffb088); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.stat-label { font-size: 0.9rem; opacity: 0.55; margin-top: 8px; color: #636e72; }

/* 内容墙 */
.content-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }

.content-wall-item { border-radius: 16px; overflow: hidden; background: #fff; border: 1px solid rgba(0,0,0,0.04); box-shadow: 0 2px 8px rgba(0,0,0,0.02); transition: all 0.3s; }

.content-wall-item:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(225, 112, 85, 0.08); }

.content-wall-item img { width: 100%; height: 220px; object-fit: cover; }

.content-wall-body { padding: 24px; }

.content-wall-body h3 { font-size: 1.2rem; margin-bottom: 8px; color: #2d3436; }

.content-wall-body p { opacity: 0.65; font-size: 0.95rem; line-height: 1.6; }

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

.faq-item { border: 1px solid rgba(225, 112, 85, 0.12); border-radius: 14px; margin-bottom: 10px; overflow: hidden; cursor: pointer; background: #fff; transition: all 0.25s; }

.faq-item:hover { border-color: #e17055; }

.faq-item .faq-question { padding: 18px 24px; font-weight: 600; font-size: 1.05rem; display: flex; justify-content: space-between; align-items: center; color: #2d3436; }

.faq-item .faq-question::after { content: '+'; font-size: 1.5rem; font-weight: 300; color: #e17055; transition: transform 0.3s; }

.faq-item.open .faq-question::after { content: '−'; }

.faq-item .faq-answer { padding: 0 24px 18px; display: none; opacity: 0.7; line-height: 1.7; color: #636e72; }

.faq-item.open .faq-answer { display: block; }

/* CTA横幅 */
.cta-banner { padding: 64px 24px; text-align: center; border-radius: 20px; background: linear-gradient(135deg, #e17055, #ffb088); color: #fff; margin: 0 16px; }

.cta-banner h2 { color: #fff; font-size: 2rem; margin-bottom: 14px; }

.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 28px; max-width: 500px; margin-left: auto; margin-right: auto; }

.cta-banner .btn-primary { background: #fff; color: #e17055; box-shadow: 0 4px 14px rgba(0,0,0,0.1); }

.cta-banner .btn-primary:hover { background: #fef3ed; }

/* 页脚 */
.site-footer { padding: 64px 0 32px; background: #2d3436; color: rgba(255,255,255,0.85); }

.site-footer .container { max-width: 1200px; }

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }

.footer-brand { }

.footer-brand .logo { color: #ffeaa7; }

.footer-brand .logo-icon { background: linear-gradient(135deg, #ffeaa7, #fdcb6e); color: #2d3436; }

.footer-col h4 { color: #ffeaa7; font-size: 1rem; margin-bottom: 16px; letter-spacing: 1px; }

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

.footer-col li { padding: 6px 0; }

.footer-col a { color: rgba(255,255,255,0.65); text-decoration: none; transition: color 0.2s; font-size: 0.9rem; }

.footer-col a:hover { color: #ffeaa7; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 48px; padding-top: 20px; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4); }

/* 工具类 */
.text-accent { color: #e17055; }

.text-center { text-align: center; }

.seo-description { max-width: 600px; margin: 0 auto 48px; opacity: 0.65; }

.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: rgba(255, 252, 245, 0.98); padding: 24px; gap: 16px; border-bottom: 1px solid rgba(225,112,85,0.1); }
  .main-nav.open a::after { display: none; }
  .hero { min-height: 60vh; }
  .hero h1 { font-size: 2.4rem; }
  .hero-image { max-width: 280px; margin: 0 auto; }
  .hero-content { text-align: center; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .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; align-items: center; }
  .hero h1 { font-size: 1.8rem; }
  .stat-number { font-size: 2rem; }
}