:root{
  --bg:#ffffff;
  --bg-soft:#f7f8fc;
  --bg-tint:#faf9ff;
  --fg:#0f1222;
  --muted:#6b7280;
  --line:#ececf3;
  --line-2:#e6e7f0;
  --primary:#5b5bf0;
  --primary-600:#4b46e5;
  --primary-700:#4338ca;
  --accent:#06b6d4;
  --grad:linear-gradient(120deg,#6d5efc 0%,#a855f7 50%,#22d3ee 100%);
  --card:#ffffff;
  --radius:18px;
  --radius-sm:13px;
  --shadow-sm:0 1px 2px rgba(16,18,34,.05);
  --shadow:0 10px 30px -16px rgba(33,30,90,.25);
  --shadow-lg:0 24px 60px -28px rgba(33,30,90,.42);
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
img{max-width:100%}

/* ---------- 顶部导航 ---------- */
.hnav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(12px);background:rgba(255,255,255,.78);border-bottom:1px solid var(--line)}
.hnav-in{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:var(--shadow-sm)}
.brand-txt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hnav-links{display:flex;gap:6px;margin-left:8px}
.hnav-links a{padding:8px 12px;border-radius:10px;color:var(--muted);font-weight:500;font-size:14.5px;transition:.15s}
.hnav-links a:hover{color:var(--fg);background:var(--bg-soft)}
.hnav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-ghost{padding:8px 14px;border-radius:10px;color:var(--fg);font-weight:600;font-size:14px;border:1px solid var(--line-2);transition:.15s}
.btn-ghost:hover{background:var(--bg-soft)}
.btn-cta{padding:9px 16px;border-radius:10px;color:#fff;font-weight:600;font-size:14px;background:var(--grad);box-shadow:var(--shadow-sm);transition:.15s}
.btn-cta:hover{transform:translateY(-1px);box-shadow:var(--shadow)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f3f1ff 0%,#ffffff 70%);padding:74px 0 56px}
.hero::before,.hero::after{content:'';position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none;z-index:0}
.hero::before{width:520px;height:520px;background:radial-gradient(circle,#7c6cff,transparent 65%);top:-220px;left:-120px}
.hero::after{width:480px;height:480px;background:radial-gradient(circle,#22d3ee,transparent 65%);top:-160px;right:-140px;opacity:.4}
.hero-in{position:relative;z-index:1;text-align:center;max-width:880px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line-2);box-shadow:var(--shadow-sm);font-size:13px;font-weight:600;color:var(--primary-700);margin-bottom:22px}
.hero h1{margin:0;font-size:clamp(32px,5.2vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin:18px auto 0;max-width:680px;color:var(--muted);font-size:16px}
.hero-search{display:flex;align-items:center;gap:8px;margin:30px auto 0;max-width:680px;background:#fff;border:1px solid var(--line-2);border-radius:16px;padding:8px;box-shadow:var(--shadow);transition:.2s}
.hero-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(91,91,240,.14),var(--shadow)}
.hs-ico{width:20px;height:20px;color:var(--muted);margin-left:14px;flex:0 0 auto}
.hero-search input{flex:1;border:0;outline:0;background:transparent;font-size:16.5px;padding:12px 6px;color:var(--fg);font-family:inherit;min-width:0}
.hero-search button{border:0;cursor:pointer;color:#fff;font-weight:700;font-size:15px;padding:0 26px;height:46px;border-radius:11px;background:var(--grad);transition:.15s;white-space:nowrap}
.hero-search button:hover{filter:brightness(1.05)}
.hot{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:22px}
.hot-label{color:var(--muted);font-size:14px}
.hot-chip{padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line-2);color:var(--fg);font-size:13.5px;font-weight:500;transition:.15s}
.hot-chip:hover{border-color:var(--primary);color:var(--primary-700);transform:translateY(-1px)}

/* ---------- 区块通用 ---------- */
.block{padding:52px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary)}
.sec-head h2{margin:6px 0 0;font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.01em}
.sec-head .more{color:var(--muted);font-weight:600;font-size:14px;white-space:nowrap;transition:.15s}
.sec-head .more:hover{color:var(--primary-700)}

/* ---------- 快捷入口 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:16px}
.quick-card{display:flex;flex-direction:column;gap:8px;padding:20px 18px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.quick-ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:#fff;background:var(--grad);box-shadow:var(--shadow-sm)}
.quick-ico svg{width:22px;height:22px}
.quick-t{font-weight:700;font-size:15.5px}
.quick-d{color:var(--muted);font-size:13px;line-height:1.5}

/* ---------- B2B 网站卡片 (Product Hunt 风格) ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.biz-card{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s;position:relative}
.biz-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:transparent}
.biz-logo{width:48px;height:48px;border-radius:13px;flex:0 0 auto;display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;overflow:hidden;box-shadow:var(--shadow-sm)}
.biz-logo img{width:100%;height:100%;object-fit:cover}
.biz-body{flex:1;min-width:0;padding-right:46px}
.biz-name{font-weight:700;font-size:15.5px;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.biz-desc{color:var(--muted);font-size:13px;line-height:1.55;margin:4px 0 9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.biz-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:9px}
.biz-cat,.biz-ctry{font-size:12px;padding:3px 9px;border-radius:999px;font-weight:600}
.biz-cat{background:rgba(91,91,240,.10);color:var(--primary-700)}
.biz-ctry{background:rgba(6,182,212,.12);color:#0e7490}
.biz-tags{display:flex;flex-wrap:wrap;gap:6px}
.biz-tag{font-size:11.5px;padding:2px 9px;border-radius:999px;background:var(--bg-soft);color:var(--muted);border:1px solid var(--line)}
.biz-go{position:absolute;top:16px;right:16px;font-size:12.5px;font-weight:700;color:var(--primary);opacity:0;transform:translateX(-4px);transition:.18s}
.biz-card:hover .biz-go{opacity:1;transform:none}

/* ---------- 行业分类 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cat-card{display:flex;flex-direction:column;gap:6px;padding:20px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.cat-ico{font-size:26px;line-height:1}
.cat-name{font-weight:700;font-size:16px}
.cat-count{color:var(--muted);font-size:13px}

/* ---------- 国家/地区 ---------- */
.ctry-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.ctry-card{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 16px;border-radius:var(--radius-sm);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.18s}
.ctry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--primary);color:var(--primary-700)}
.ctry-name{font-weight:600;font-size:14.5px}
.ctry-count{font-size:12.5px;color:var(--muted);font-weight:700;background:var(--bg-soft);padding:2px 9px;border-radius:999px}

/* ---------- 页脚 ---------- */
.hfoot{margin-top:40px;background:var(--bg-soft);border-top:1px solid var(--line);padding:48px 0 28px}
.hfoot-in{display:flex;gap:48px;flex-wrap:wrap}
.hfoot-brand{display:flex;gap:12px;align-items:flex-start;max-width:280px}
.hb-name{font-weight:800;font-size:17px}
.hfoot-brand p{margin:6px 0 0;color:var(--muted);font-size:13.5px}
.hfoot-cols{display:flex;gap:48px;flex-wrap:wrap;margin-left:auto}
.hfoot-cols h5{margin:0 0 12px;font-size:14px;font-weight:700}
.hfoot-cloud{display:flex;flex-direction:row;flex-wrap:wrap;gap:8px 10px}
.hfoot-cloud a{color:var(--fg);font-size:13px;background:#fff;border:1px solid var(--line);padding:4px 11px;border-radius:999px;transition:.15s}
.hfoot-cloud a:hover{color:var(--primary-700);border-color:var(--primary);background:var(--bg-tint)}
.hfoot-bot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:20px;border-top:1px solid var(--line-2);color:var(--muted);font-size:13px}
.hfoot-bot .beian{color:var(--muted);font-size:12.5px;transition:.15s}
.hfoot-bot .beian:hover{color:var(--primary-700)}
.hfoot-bot .hfoot-mail-group{display:inline-flex;align-items:center;gap:0}
.hfoot-bot .hfoot-mail{color:var(--primary-700);font-size:13px;text-decoration:none;transition:.15s}
.hfoot-bot .hfoot-mail:hover{color:var(--primary-900);text-decoration:underline}
.hfoot-bot .hfoot-mail-label{color:var(--muted,#666);font-size:13px;margin-right:0}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .quick-grid{grid-template-columns:repeat(4,1fr)}
  .cat-grid{grid-template-columns:repeat(4,1fr)}
  .ctry-grid{grid-template-columns:repeat(4,1fr)}
  .biz-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .hnav-links{display:none}
  .hero{padding:52px 0 40px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .ctry-grid{grid-template-columns:repeat(2,1fr)}
  .biz-grid{grid-template-columns:1fr}
  .hfoot-in{flex-direction:column;gap:28px}
  .hfoot-cols{margin-left:0;gap:28px}
}
@media (max-width:460px){
  .container{padding:0 16px}
  .hero-search button{padding:0 18px}
}
.hnav-links a.active{color:#fff;background:var(--primary-600,#4b46e5)}
.hnav-links a.active:hover{color:#fff;background:var(--primary-700,#4338ca)}
.hnav-right .btn-ghost.active{color:var(--primary-700,#4338ca);border-color:var(--primary-600,#4b46e5);background:rgba(91,91,240,.08)}