/* 主题 · 清爽默认 */
:root{--g:#0acf97;--g2:#4bd8b4;--t:#1f2a3d;--t2:#556076;--m:#8a99af;--line:#e8edf5;--bg:#f4f7fb}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--t);font:14px/1.7 Nunito,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
.sc-wrap{max-width:1180px;margin:0 auto;padding:0 22px}

/* 顶栏 */
.sc-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.sc-head .sc-wrap{display:flex;align-items:center;gap:32px;height:64px}
.sc-logo{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:var(--t)}
.sc-logo .mk{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--g),var(--g2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;box-shadow:0 4px 14px rgba(10,207,151,.32)}
.sc-nav{margin-left:auto;display:flex;gap:24px;font-size:13.5px}
.sc-nav a{color:var(--t2);transition:.15s}
.sc-nav a:hover{color:var(--g)}

/* Hero */
.sc-hero{padding:56px 0 44px;text-align:center;background:linear-gradient(170deg,#fff,#f0f8f6)}
.sc-hero h1{font-size:34px;font-weight:800;margin:0 0 10px;letter-spacing:-.8px}
.sc-hero p{margin:0;color:var(--t2);font-size:15px;max-width:620px;margin-inline:auto}

/* 卡片列表 */
.sc-body{padding:36px 0 70px}
.sc-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.sc-item{
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;
  transition:.18s;display:flex;flex-direction:column;
}
.sc-item:hover{border-color:rgba(10,207,151,.4);box-shadow:0 8px 26px rgba(10,207,151,.12);transform:translateY(-2px)}
.sc-item .ttl{font-size:15px;font-weight:700;margin-bottom:7px;color:var(--t);line-height:1.45}
.sc-item .desc{font-size:12.5px;color:var(--m);line-height:1.7;flex:1}
.sc-item .meta{font-size:11.5px;color:#b3bdcb;margin-top:12px;padding-top:10px;border-top:1px solid #f3f6fb}

.sc-blank{text-align:center;padding:70px 20px;color:var(--m)}
.sc-blank p{margin:0 0 8px;font-size:15px}
.sc-blank .sm{font-size:13px;color:#a8b3c2}

/* 页脚 */
.sc-foot{background:#fff;border-top:1px solid var(--line);padding:24px 0;font-size:12.5px;color:var(--m);text-align:center}
.sc-foot p{margin:0}

/* 授权提示 */
.sc-lic-notice{background:#fff8ec;border-bottom:1px solid #ffe4b8;color:#8a5a00;font-size:12.5px;padding:9px 16px;text-align:center}
.sc-lic-notice a{color:#8a5a00;font-weight:700;text-decoration:underline}

@media(max-width:900px){
  .sc-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sc-hero h1{font-size:26px}
}
@media(max-width:600px){
  .sc-cards{grid-template-columns:1fr}
  .sc-head .sc-wrap{gap:12px;height:58px}
  .sc-nav{gap:14px;font-size:13px}
  .sc-nav a:not(:last-child):not(:first-child){display:none}
}