/* AI应用部落 · 白底全站（归档皮升级 · 自包含） */
:root{
  --blue:#2563eb;--blue2:#4f46e5;--green:#059669;--ink:#111827;--muted:#64748b;
  --line:#e5e7eb;--bg:#f8fafc;--card:#fff;--radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:#374151;font:15px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
a:hover{color:var(--blue)}
.wrap{width:min(1180px,calc(100% - 32px));margin:auto}
img{max-width:100%;display:block}

/* top */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid #eef2f7}
.topbar .wrap{height:66px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink)}
.brand b{color:var(--blue)}
.logo{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2));box-shadow:0 8px 18px #2563eb33;font-size:16px}
.nav{display:flex;gap:18px;flex-wrap:wrap;font-weight:600;color:#4b5563}
.nav a{padding:18px 0 14px;border-bottom:3px solid transparent}
.nav a:hover,.nav a.active{color:var(--blue);border-color:var(--blue)}
.menu-btn{display:none;border:0;background:#eff6ff;color:var(--blue);width:40px;height:40px;border-radius:10px;font-size:18px;cursor:pointer}

/* follow */
.follow-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 14px;margin:14px auto;width:min(1180px,calc(100% - 32px));background:linear-gradient(90deg,#eff6ff,#f0fdf4);border:1px solid var(--line);border-radius:14px;font-size:13px}
.follow-bar a{padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:600}
.follow-bar a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.follow-bar a.app-on{background:var(--green);color:#fff;border-color:var(--green)}
.follow-bar .tip{margin-left:auto;color:var(--muted);font-size:12px}

/* hero */
.hero{padding:28px 0 8px}
.crumbs{color:#94a3b8;font-size:13px;margin-bottom:10px}
.crumbs a{color:var(--blue)}
.hero h1{font-size:clamp(26px,3.4vw,38px);line-height:1.25;color:var(--ink);margin:0 0 12px;letter-spacing:-.02em}
.hero p{margin:0;color:var(--muted);font-size:16px;max-width:720px}

/* cards */
.card{background:var(--card);border:1px solid #edf0f4;border-radius:var(--radius);box-shadow:0 3px 16px rgba(15,23,42,.04)}
.tag{display:inline-block;padding:5px 12px;border-radius:999px;background:#f1f5f9;color:#64748b;font-size:13px;margin:0 6px 6px 0}
.tag:hover{background:#dbeafe;color:var(--blue)}
.btn{display:inline-block;padding:11px 18px;border-radius:10px;font-weight:800;margin:0 8px 8px 0}
.btn-blue{background:var(--blue);color:#fff}
.btn-green{background:var(--green);color:#fff}
.btn-dark{background:#111827;color:#fff}
.btn-line{border:2px solid var(--blue);color:var(--blue);background:transparent}

/* images */
.img-hero{width:100%;max-height:360px;object-fit:cover;border-radius:16px;margin:12px 0 8px;background:#e2e8f0}
.img-strip{display:flex;gap:10px;overflow-x:auto;margin:10px 0 18px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
.img-strip img{height:108px;width:23%;min-width:130px;object-fit:cover;border-radius:12px;background:#e2e8f0;flex:0 0 auto}
.img-dual{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0 18px}
.img-dual img{width:100%;height:180px;object-fit:cover;border-radius:12px;background:#e2e8f0}

/* grids */
.pair-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:16px 0 28px}
.pair-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 2px 12px rgba(15,23,42,.04)}
.pair-card img{width:100%;height:140px;object-fit:cover}
.pair-card .bd{padding:14px}
.pair-card h3{margin:0 0 6px;font-size:16px;color:var(--ink)}
.pair-card p{margin:0 0 12px;color:var(--muted);font-size:13px;line-height:1.5}
.pair-card .acts{display:flex;gap:8px}
.pair-card .acts a{flex:1;text-align:center;padding:9px 8px;border-radius:10px;font-weight:700;font-size:13px;color:#fff}
.pair-card .acts a.a{background:var(--green)}
.pair-card .acts a.c{background:var(--blue)}

.app-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:16px 0 28px}
.app-card{display:block;padding:16px;background:#fff;border:1px solid var(--line);border-radius:16px}
.app-card:hover{border-color:#bfdbfe;box-shadow:0 8px 24px rgba(37,99,235,.08)}
.app-head{display:flex;gap:12px;align-items:center;margin-bottom:10px}
.app-head img{width:52px;height:52px;border-radius:14px;object-fit:cover}
.app-head h2{margin:0;font-size:17px;color:var(--ink)}
.app-head small{color:var(--muted)}
.app-card p{margin:0 0 10px;color:#475569;font-size:14px}
.card-foot{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;font-weight:600}
.card-foot .download{color:var(--blue)}

.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:16px 0}
.guide{display:block;padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px}
.guide .num{color:var(--blue);font-size:12px;font-weight:700}
.guide h2{margin:8px 0;font-size:17px;color:var(--ink)}
.guide p{margin:0;color:var(--muted);font-size:14px}

/* article */
.layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:24px;padding:18px 0 36px}
.article{overflow:hidden}
.article-pad{padding:26px 30px}
.article h1{font-size:clamp(24px,3vw,34px);line-height:1.3;color:var(--ink);margin:10px 0 12px}
.meta{color:#94a3b8;font-size:13px;margin-bottom:8px}
.lead{padding:16px 18px;background:#f8fafc;border-left:4px solid var(--blue);border-radius:0 12px 12px 0;color:#475569;margin:0 0 18px}
.content h2{font-size:21px;color:var(--ink);margin:26px 0 10px;padding-left:12px;border-left:4px solid var(--blue)}
.content p,.content li{line-height:1.9}
.content ol{padding-left:22px}
.side-card{padding:16px;margin-bottom:14px}
.side-card h3{margin:0 0 10px;font-size:16px;color:var(--ink)}
.side-card a{display:block;padding:8px 0;border-bottom:1px solid #f1f5f9;font-size:14px}
.side-card a:last-child{border:0}

/* product download */
.product{padding:24px}
.product-top{display:flex;gap:14px;align-items:center;margin-bottom:14px}
.product-top h1{margin:0 0 4px;font-size:clamp(22px,3vw,32px)}
.product-top .sub{color:var(--muted)}

/* footer */
footer{background:#0f172a;color:#94a3b8;margin-top:40px;padding:42px 0 22px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
.foot-brand{color:#fff;font-weight:800;font-size:18px;margin-bottom:8px}
.foot-grid h4{color:#fff;margin:0 0 12px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin:7px 0}
.foot-grid a:hover{color:#93c5fd}
.copyright{border-top:1px solid #1e293b;margin-top:26px;padding-top:16px;text-align:center;font-size:12px;color:#64748b}

/* spider helpers */
.spider-mask{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:.02}
.spider-mask a{margin-right:6px}
.kw-sea{color:#e2e8f0;font-size:11px;line-height:1.65;word-break:break-all;padding:10px 0 18px}
.kw-sea a{color:#bfdbfe;margin:0 4px}
#progressBar,.t7-readline{position:fixed;left:0;top:0;height:3px;width:0;z-index:100;background:linear-gradient(90deg,var(--blue),#60a5fa);pointer-events:none}
.toplink{position:fixed;right:16px;bottom:20px;width:44px;height:44px;border:0;border-radius:50%;background:#0f172a;color:#fff;font-size:18px;cursor:pointer;opacity:0;visibility:hidden;transition:.2s;z-index:90;box-shadow:0 6px 20px rgba(0,0,0,.2)}
.toplink.visible{opacity:1;visibility:visible}

@media(max-width:960px){
  .topbar .wrap{position:relative}
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;position:absolute;right:12px;top:58px;background:#fff;padding:12px 16px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.12);border:1px solid var(--line);z-index:60;min-width:160px}
  .nav.open a{padding:10px 4px;border:0}
  .menu-btn{display:block}
  .pair-grid,.app-grid{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .follow-bar .tip{width:100%;margin-left:0}
  .product-top{flex-direction:column;align-items:flex-start}
  .btn{display:block;text-align:center;margin-right:0}
}
@media(max-width:620px){
  .wrap{width:min(100% - 20px,1180px)}
  .pair-grid,.app-grid,.guide-grid,.img-dual,.foot-grid{grid-template-columns:1fr}
  .img-strip img{min-width:42%;width:42%;height:96px}
  .img-hero{max-height:220px;border-radius:12px}
  .article-pad,.product{padding:16px}
  .hero{padding:18px 0 6px}
  .hero h1{font-size:24px}
  .pair-card .acts{flex-direction:column}
  .follow-bar{padding:10px;gap:6px}
  .follow-bar a{font-size:12px;padding:6px 10px}
  .topbar .wrap{height:58px}
}

CSS