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

/* 独特视觉风格：柔和渐变+流体有机形态+彩色玻璃质感 */
/* 配色方案：珊瑚粉+天蓝+薰衣草紫+薄荷绿 — 非传统组合 */
:root {
  --coral: #FF7E6B;
  --sky: #6BC5FF;
  --lavender: #B8A9FF;
  --mint: #6EE7B7;
  --peach: #FFD6C2;
  --cream: #FFF8F0;
  --glass: rgba(255,255,255,0.25);
  --glass-border: rgba(255,255,255,0.4);
  --shadow-glass: 0 8px 32px rgba(107,197,255,0.15);
  --text-primary: #2D3436;
  --text-secondary: #636E72;
}

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

/* 导航 — 玻璃态+渐变边框 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:var(--glass); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); border-bottom:1px solid var(--glass-border); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:72px; max-width:1200px; margin:0 auto; padding:0 24px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.3rem; text-decoration:none; color:var(--text-primary); letter-spacing:-0.5px; }
.logo-icon { width:40px; height:40px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:1.2rem; background:linear-gradient(135deg, var(--coral), var(--lavender)); color:#fff; box-shadow:0 4px 12px rgba(255,126,107,0.3); }
.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:var(--text-secondary); transition:0.3s; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:linear-gradient(90deg, var(--coral), var(--sky)); transition:0.3s; border-radius:2px; }
.main-nav a:hover { color:var(--coral); }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:10px 24px; border-radius:50px; color:#fff!important; font-weight:700; background:linear-gradient(135deg, var(--coral), var(--lavender)); box-shadow:0 4px 16px rgba(255,126,107,0.3); transition:0.3s; }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(255,126,107,0.4); }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; cursor:pointer; width:32px; height:32px; flex-direction:column; justify-content:center; gap:5px; background:none; border:none; }
.menu-toggle span { display:block; width:100%; height:2.5px; background:var(--text-primary); border-radius:3px; transition:0.3s; }

/* 首页Hero — 有机流体背景+动态渐变 */
.hero { min-height:70vh; display:flex; align-items:center; position:relative; background:linear-gradient(135deg, #FFF0EB 0%, #E8F4FD 50%, #F0ECFF 100%); overflow:hidden; }
.hero::before { content:''; position:absolute; top:-30%; right:-20%; width:500px; height:500px; background:radial-gradient(circle, rgba(255,126,107,0.15) 0%, transparent 70%); border-radius:50%; animation:float 8s ease-in-out infinite; }
.hero::after { content:''; position:absolute; bottom:-20%; left:-10%; width:400px; height:400px; background:radial-gradient(circle, rgba(107,197,255,0.12) 0%, transparent 70%); border-radius:50%; animation:float 10s ease-in-out infinite reverse; }
@keyframes float {
  0%,100% { transform:translate(0,0) scale(1); }
  50% { transform:translate(30px,-30px) scale(1.05); }
}
.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; margin-bottom:20px; background:linear-gradient(135deg, var(--coral), var(--sky)); color:#fff; letter-spacing:1px; text-transform:uppercase; box-shadow:0 4px 12px rgba(255,126,107,0.2); }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:20px; color:var(--text-primary); font-weight:800; letter-spacing:-1px; }
.hero h1 span { background:linear-gradient(135deg, var(--coral), var(--lavender)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero p { font-size:1.1rem; color:var(--text-secondary); max-width:560px; margin-bottom:36px; line-height:1.6; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:20px; overflow:hidden; box-shadow:var(--shadow-glass); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 渐变+圆角+立体感 */
.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:0.35s; font-size:0.95rem; letter-spacing:0.3px; }
.btn-primary { color:#fff; background:linear-gradient(135deg, var(--coral), var(--lavender)); box-shadow:0 4px 16px rgba(255,126,107,0.3); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 28px rgba(255,126,107,0.4); }
.btn-outline { background:transparent; border:2px solid var(--coral); color:var(--coral); }
.btn-outline:hover { background:var(--coral); color:#fff; transform:translateY(-3px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; margin-bottom:14px; color:var(--coral); text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:16px; color:var(--text-primary); font-weight:800; letter-spacing:-0.5px; }
.section-desc { max-width:600px; color:var(--text-secondary); margin-bottom:44px; line-height:1.6; }

/* 卡片网格 — 玻璃卡片+渐变边框 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px; background:var(--glass); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); border:1px solid var(--glass-border); box-shadow:var(--shadow-glass); transition:0.35s; position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:4px; background:linear-gradient(90deg, var(--coral), var(--sky), var(--lavender)); opacity:0; transition:0.35s; }
.category-card:hover { transform:translateY(-6px); box-shadow:0 12px 40px rgba(107,197,255,0.2); }
.category-card:hover::before { opacity:1; }
.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, var(--peach), var(--cream)); color:var(--coral); }
.card-link { font-weight:700; font-size:0.85rem; text-decoration:none; color:var(--coral); display:inline-flex; align-items:center; gap:6px; transition:0.3s; }
.card-link:hover { gap:10px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:20px; overflow:hidden; box-shadow:var(--shadow-glass); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:10px 0; display:flex; align-items:center; gap:10px; color:var(--text-secondary); font-weight:500; }
.feature-list li::before { content:'✦'; font-weight:700; color:var(--coral); font-size:1.1rem; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:28px; text-align:center; }
.stat-item { padding:32px 24px; border-radius:16px; background:var(--glass); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); border:1px solid var(--glass-border); box-shadow:var(--shadow-glass); transition:0.3s; }
.stat-item:hover { transform:translateY(-4px); }
.stat-number { font-size:2.4rem; font-weight:800; background:linear-gradient(135deg, var(--coral), var(--sky)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.stat-label { font-size:0.9rem; color:var(--text-secondary); margin-top:8px; font-weight:500; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; background:#fff; border:1px solid var(--glass-border); box-shadow:var(--shadow-glass); transition:0.35s; }
.content-wall-item:hover { transform:translateY(-6px); box-shadow:0 12px 40px rgba(107,197,255,0.2); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:24px; }
.content-wall-body h3 { font-size:1.1rem; margin-bottom:8px; color:var(--text-primary); }
.content-wall-body p { color:var(--text-secondary); font-size:0.9rem; line-height:1.5; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid var(--glass-border); border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:var(--glass); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); transition:0.3s; }
.faq-item:hover { border-color:var(--coral); }
.faq-item .faq-question { padding:18px 24px; font-weight:700; color:var(--text-primary); display:flex; justify-content:space-between; align-items:center; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; color:var(--coral); transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 20px; display:none; color:var(--text-secondary); line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 渐变+立体阴影 */
.cta-banner { padding:64px 32px; text-align:center; border-radius:20px; background:linear-gradient(135deg, var(--coral), var(--lavender)); color:#fff; box-shadow:0 12px 40px rgba(255,126,107,0.3); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-50%; right:-30%; width:300px; height:300px; background:radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%); border-radius:50%; }
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:16px; font-weight:800; }
.cta-banner p { color:rgba(255,255,255,0.9); margin-bottom:28px; font-size:1.1rem; }
.cta-banner .btn-primary { background:#fff; color:var(--coral); box-shadow:0 4px 16px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding:64px 0 32px; background:linear-gradient(135deg, #2D3436, #1A1D1E); color:#fff; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-brand h3 { font-size:1.3rem; margin-bottom:12px; }
.footer-brand p { color:rgba(255,255,255,0.6); line-height:1.6; font-size:0.9rem; }
.footer-col h4 { font-size:0.9rem; font-weight:700; margin-bottom:16px; text-transform:uppercase; letter-spacing:1px; color:var(--coral); }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul li a { color:rgba(255,255,255,0.6); text-decoration:none; font-size:0.9rem; transition:0.3s; }
.footer-col ul li a:hover { color:var(--coral); }
.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:var(--coral); }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; color:var(--text-secondary); line-height:1.6; }
.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:72px; left:0; width:100%; background:var(--glass); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); padding:24px; gap:16px; border-bottom:1px solid var(--glass-border); }
  .hero h1 { font-size:2.2rem; }
  .section-title { font-size:1.8rem; }
  .hero::before, .hero::after { display:none; }
}
@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:1.8rem; }
  .section-title { font-size:1.5rem; }
  .btn { width:100%; justify-content:center; }
}