*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#007aff;--phover:#0066d6;--bg:#f5f5f7;--text:#1d1d1f;--muted:#86868b;--card:#fff;--border:#d2d2d7;--radius:12px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
a{color:var(--primary);text-decoration:none}img{max-width:100%;height:auto}
.site-header{background:rgba(255,255,255,.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;justify-content:space-between;align-items:center;padding-top:12px;padding-bottom:12px}
.logo{font-size:20px;font-weight:700;color:var(--text)}
.nav{display:flex;gap:4px}
.nav a{padding:8px 14px;border-radius:8px;font-size:14px;color:var(--text);transition:all .2s}
.nav a:hover{background:#f0f0f2}
.menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--text)}
.hero{text-align:center;padding:80px 20px 60px;background:linear-gradient(135deg,#e8f0fe,#f5f5f7)}
.hero h1{font-size:clamp(28px,5vw,42px);font-weight:800;margin-bottom:12px}
.hero p{font-size:clamp(14px,2vw,18px);color:var(--muted);margin-bottom:24px}
.hero .btn-group{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 24px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:all .2s}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--phover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,122,255,.3)}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.section{padding:60px 0}.section-title{font-size:24px;font-weight:700;text-align:center;margin-bottom:8px}.section-sub{text-align:center;color:var(--muted);margin-bottom:40px;font-size:14px}
.service-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.service-card{background:var(--card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);transition:all .2s}
.service-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.06)}
.service-card .icon{font-size:32px;margin-bottom:12px}.service-card h3{font-size:17px;margin-bottom:8px}.service-card p{font-size:13px;color:var(--muted);margin-bottom:8px}.service-card .price{font-size:18px;font-weight:700;color:var(--primary)}
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.article-card{background:var(--card);border-radius:var(--radius);padding:20px;border:1px solid var(--border);display:block;transition:all .2s}
.article-card:hover{border-color:var(--primary)}
.article-card .cat{font-size:11px;color:var(--primary);font-weight:600;margin-bottom:6px}.article-card h3{font-size:16px;margin-bottom:8px;line-height:1.4}.article-card p{font-size:13px;color:var(--muted)}
.about-content{max-width:700px;margin:0 auto;font-size:15px;line-height:2}.about-content h2{font-size:20px;margin:24px 0 8px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:20px}.breadcrumb a{color:var(--muted)}
.article-detail{background:var(--card);border-radius:var(--radius);padding:32px;border:1px solid var(--border);max-width:800px;margin:0 auto}
.article-detail h1{font-size:24px;margin-bottom:8px}.article-detail .meta{font-size:12px;color:var(--muted);margin-bottom:24px}.article-detail .content{font-size:15px;line-height:2}
.banner{background:var(--card);border-radius:var(--radius);padding:40px;text-align:center;border:1px solid var(--border);margin-bottom:16px}
.banner h2{font-size:28px;margin-bottom:8px}.banner p{color:var(--muted);font-size:14px}
.site-footer{background:#1d1d1f;color:#a1a1a6;padding:40px 0 20px;margin-top:60px}.site-footer h4{color:#fff;font-size:15px;margin-bottom:12px}.site-footer p{font-size:13px;line-height:1.8}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:16px;text-align:center;font-size:12px}
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.review-card{background:#fff;border-radius:12px;padding:20px;border:1px solid #d2d2d7}.review-card:hover{border-color:#007aff;box-shadow:0 4px 16px rgba(0,122,255,.08)}
.review-header{display:flex;align-items:center;gap:10px;margin-bottom:12px}.review-avatar{width:40px;height:40px;border-radius:50%;background:#e8f0fe;color:#007aff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}.review-name{font-size:14px;font-weight:600}.review-stars{font-size:12px;color:#ff9500}.review-date{font-size:11px;color:#a1a1a6;margin-left:auto}.review-body{font-size:13px;color:#86868b;line-height:1.8}

/* 右侧悬浮联系 */
.side-contact{position:fixed;right:16px;bottom:120px;z-index:999;display:flex;flex-direction:column;gap:8px}
.sc-item{display:flex;align-items:center;gap:8px;background:#fff;border-radius:24px;padding:10px 16px;box-shadow:0 2px 12px rgba(0,0,0,.1);cursor:pointer;transition:all .2s;text-decoration:none;color:#1d1d1f;font-size:13px;border:1px solid #d2d2d7}
.sc-item:hover{transform:translateX(-4px);box-shadow:0 4px 16px rgba(0,122,255,.15);border-color:#007aff}
.sc-icon{font-size:18px;flex-shrink:0;font-weight:700}.sc-text{white-space:nowrap}
.sc-wechat{background:#07c160;color:#fff;border-color:#07c160}.sc-wechat:hover{background:#06ad56;border-color:#06ad56}
.sc-qr{background:#007aff;color:#fff;border-color:#007aff}.sc-qr:hover{background:#0066d6;border-color:#0066d6}

/* 弹窗 */
.popup-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.4);z-index:9999;justify-content:center;align-items:center}
.popup-overlay.show{display:flex}
.popup-card{background:#fff;border-radius:16px;padding:32px;text-align:center;max-width:320px;width:90%;position:relative;box-shadow:0 8px 32px rgba(0,0,0,.15)}
.popup-close{position:absolute;top:12px;right:16px;font-size:18px;color:#86868b;cursor:pointer}.popup-close:hover{color:#1d1d1f}
.popup-card h3{font-size:18px;margin-bottom:12px}.popup-card img{max-width:200px;border-radius:8px;margin-top:8px}

@media(max-width:768px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:12px;border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.1)}
  .nav.open{display:flex}.menu-toggle{display:block}
  .hero{padding:60px 20px 40px}.footer-grid,.service-grid,.article-grid,.review-grid{grid-template-columns:1fr}
  .side-contact{right:8px;bottom:80px}.sc-text{display:none}
}