*, *::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:#FFF9F0; color:#2D2D2D; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#F7F2EB; }

/* 导航 — 固定顶部，半透明磨砂 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(255,249,240,0.92); backdrop-filter:blur(12px); border-bottom:1px solid rgba(0,180,216,0.15); }
.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:10px; font-weight:800; font-size:1.25rem; text-decoration:none; color:#2D2D2D; letter-spacing:-0.5px; }
.logo-icon { width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1.6rem; background:linear-gradient(135deg,#FF6B35,#FFD166); color:#fff; font-weight:bold; box-shadow:0 2px 8px rgba(255,107,53,0.3); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:600; color:#4A4A4A; transition:all 0.2s; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px; background:linear-gradient(90deg,#FF6B35,#FFD166); transition:width 0.3s; border-radius:2px; }
.main-nav a:hover { color:#FF6B35; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:8px 24px; border-radius:50px; color:#fff!important; font-weight:700; background:linear-gradient(135deg,#FF6B35,#FF8C42); box-shadow:0 4px 12px rgba(255,107,53,0.3); }
.nav-cta::after { display:none!important; }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 18px rgba(255,107,53,0.4); }
.menu-toggle { display:none; background:none; border:none; font-size:1.4rem; cursor:pointer; color:#2D2D2D; }

/* 首页Hero — 动感渐变背景 */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; overflow:hidden; background:linear-gradient(135deg,#FFECD2 0%,#FCB69F 50%,#FFD166 100%); }
.hero::before { content:''; position:absolute; top:-20%; right:-10%; width:400px; height:400px; background:radial-gradient(circle,rgba(0,180,216,0.15) 0%,transparent 70%); border-radius:50%; }
.hero::after { content:''; position:absolute; bottom:-10%; left:-5%; width:300px; height:300px; background:radial-gradient(circle,rgba(255,107,53,0.2) 0%,transparent 70%); border-radius:50%; }
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:6px 18px; border-radius:30px; margin-bottom:18px; background:rgba(255,255,255,0.7); color:#FF6B35; text-transform:uppercase; letter-spacing:2px; backdrop-filter:blur(4px); }
.hero h1 { font-size:3.6rem; line-height:1.15; margin-bottom:20px; font-weight:900; color:#2D2D2D; background:linear-gradient(135deg,#FF6B35,#FF8C42); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; text-shadow:0 2px 10px rgba(255,107,53,0.15); }
.hero p { font-size:1.2rem; opacity:0.8; max-width:560px; margin-bottom:36px; color:#4A4A4A; line-height:1.7; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 20px 40px rgba(0,0,0,0.08); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 圆润+渐变 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius:50px; font-weight:700; cursor:pointer; border:none; text-decoration:none; transition:all 0.25s; font-size:0.95rem; }
.btn-primary { color:#fff; background:linear-gradient(135deg,#FF6B35,#FF8C42); box-shadow:0 6px 16px rgba(255,107,53,0.3); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 10px 24px rgba(255,107,53,0.4); }
.btn-outline { background:transparent; border:2px solid #FF6B35; color:#FF6B35; }
.btn-outline:hover { background:rgba(255,107,53,0.06); border-color:#E85A2C; }

/* 标签/标题 — 加粗+装饰 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; margin-bottom:14px; color:#00B4D8; text-transform:uppercase; position:relative; padding-left:20px; }
.section-label::before { content:''; position:absolute; left:0; top:50%; transform:translateY(-50%); width:10px; height:2px; background:#FFD166; border-radius:2px; }
.section-title { font-size:2.2rem; font-weight:800; margin-bottom:16px; letter-spacing:-0.5px; color:#2D2D2D; }
.section-desc { max-width:620px; opacity:0.75; margin-bottom:44px; font-size:1.05rem; line-height:1.7; color:#5A5A5A; }

/* 卡片网格 — 玻璃效果+悬浮阴影 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px; border:1px solid rgba(255,255,255,0.6); background:rgba(255,255,255,0.8); backdrop-filter:blur(4px); transition:all 0.3s; box-shadow:0 4px 12px rgba(0,0,0,0.04); }
.category-card:hover { transform:translateY(-5px); box-shadow:0 16px 40px rgba(0,0,0,0.08); border-color:#FFD166; }
.card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; background:linear-gradient(135deg,#FF6B35,#FFD166); color:#fff; box-shadow:0 4px 12px rgba(255,107,53,0.2); }
.card-link { font-weight:700; font-size:0.9rem; text-decoration:none; color:#FF6B35; display:inline-flex; align-items:center; gap:6px; transition:gap 0.2s; }
.card-link::after { content:'→'; transition:transform 0.2s; }
.card-link:hover { gap:12px; }
.card-link:hover::after { transform:translateX(4px); }

/* 特性块 — 交错布局+装饰线 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 12px 30px rgba(0,0,0,0.06); position:relative; }
.feature-image::before { content:''; position:absolute; inset:0; border:2px dashed rgba(0,180,216,0.2); border-radius:16px; pointer-events:none; }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; margin-top:10px; }
.feature-list li { padding:10px 0; display:flex; align-items:center; gap:12px; font-weight:500; color:#4A4A4A; border-bottom:1px solid #F0E8E0; }
.feature-list li:last-child { border-bottom:none; }
.feature-list li::before { content:'🏆'; font-weight:700; font-size:1.2rem; }

/* 数据条 — 数字大号+彩色 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:28px; text-align:center; }
.stat-item { padding:32px 20px; border-radius:16px; border:1px solid rgba(0,0,0,0.06); background:rgba(255,255,255,0.7); backdrop-filter:blur(2px); box-shadow:0 4px 12px rgba(0,0,0,0.03); }
.stat-number { font-size:2.8rem; font-weight:900; color:#FF6B35; line-height:1; }
.stat-label { font-size:0.95rem; opacity:0.7; margin-top:8px; font-weight:500; color:#5A5A5A; letter-spacing:0.5px; }

/* 内容墙 — 层叠卡片 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; border:1px solid rgba(0,0,0,0.05); background:#fff; transition:all 0.3s; box-shadow:0 4px 12px rgba(0,0,0,0.04); }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 16px 40px rgba(0,0,0,0.08); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:24px; }
.content-wall-body h3 { font-size:1.2rem; font-weight:700; margin-bottom:8px; color:#2D2D2D; }
.content-wall-body p { opacity:0.7; font-size:0.9rem; line-height:1.5; }

/* FAQ — 圆角+图标交互 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #E8E0D8; border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; transition:border-color 0.2s; background:#fff; }
.faq-item:hover { border-color:#FFD166; }
.faq-item .faq-question { padding:18px 24px; font-weight:700; display:flex; justify-content:space-between; align-items:center; color:#2D2D2D; font-size:1.05rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; color:#FF6B35; font-weight:300; transition:transform 0.3s; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); }
.faq-item .faq-answer { padding:0 24px 20px; display:none; opacity:0.8; line-height:1.7; color:#4A4A4A; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 渐变+光影 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:20px; color:#fff; background:linear-gradient(135deg,#FF6B35 0%,#FF8C42 40%,#FFD166 100%); box-shadow:0 20px 40px rgba(255,107,53,0.3); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-30%; left:-20%; width:300px; height:300px; background:radial-gradient(circle,rgba(255,255,255,0.2) 0%,transparent 70%); border-radius:50%; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:800; margin-bottom:16px; text-shadow:0 2px 4px rgba(0,0,0,0.1); }
.cta-banner p { color:rgba(255,255,255,0.85); font-size:1.1rem; margin-bottom:28px; }
.cta-banner .btn-primary { background:#fff; color:#FF6B35; box-shadow:0 6px 16px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform:translateY(-3px); box-shadow:0 10px 24px rgba(0,0,0,0.15); }

/* 页脚 — 深色但非黑（深灰） */
.site-footer { padding:60px 0 28px; background:#2D2D2D; color:rgba(255,255,255,0.8); }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; }
.footer-brand { }
.footer-brand .logo { color:#fff; }
.footer-brand .logo-icon { background:linear-gradient(135deg,#FFD166,#FF6B35); color:#2D2D2D; }
.footer-brand p { margin-top:16px; line-height:1.7; opacity:0.7; font-size:0.9rem; }
.footer-col h4 { color:#fff; font-weight:700; margin-bottom:16px; font-size:1rem; letter-spacing:0.5px; }
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:8px; }
.footer-col a { color:rgba(255,255,255,0.6); text-decoration:none; font-size:0.9rem; transition:color 0.2s; }
.footer-col a:hover { color:#FFD166; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); margin-top:44px; padding-top:24px; text-align:center; font-size:0.8rem; opacity:0.6; }

/* 工具类 */
.text-accent { color:#FF6B35; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.75; }
.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; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; width:40px; height:40px; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:rgba(255,249,240,0.98); backdrop-filter:blur(10px); padding:24px 20px; gap:16px; border-bottom:1px solid rgba(0,0,0,0.05); }
  .hero h1 { font-size:2.4rem; }
  .hero-buttons { flex-direction:column; align-items:flex-start; }
}
@media (max-width:480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; text-align:center; }
  .hero-buttons { flex-direction:column; gap:12px; }
  .section-title { font-size:1.8rem; }
  .stat-number { font-size:2.4rem; }
}