:root{
  --navy:#123a6b; --navy-d:#0c2a4e; --red:#d7263d; --gold:#e0a83c;
  --ink:#1b2430; --muted:#5b6675; --line:#e3e7ee; --bg:#f6f8fb; --card:#fff;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC",-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}

/* header */
header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.hd{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.5px}
.logo .mark{width:32px;height:32px;border-radius:7px;background:var(--red);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
nav.main{display:flex;gap:22px;font-size:14px}
nav.main a{opacity:.85;padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a.on{opacity:1;border-bottom-color:var(--gold)}
.hd-cta{display:flex;gap:8px}
.btn{display:inline-block;padding:7px 15px;border-radius:6px;font-size:13px;font-weight:600;transition:.15s}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#b81e32}
.btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.burger{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}

/* hero */
.hero{background:linear-gradient(120deg,var(--navy-d),var(--navy));color:#fff;padding:64px 0 56px}
.hero .tag{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);
  padding:4px 12px;border-radius:999px;font-size:12.5px;margin-bottom:16px}
.hero h1{font-size:34px;font-weight:800;letter-spacing:1px;line-height:1.35}
.hero h2{font-size:16px;font-weight:400;opacity:.9;margin-top:10px}
.hero .meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:26px;font-size:14px;opacity:.92}
.hero .meta b{display:block;font-size:20px;font-weight:700;color:var(--gold)}

/* section */
section{padding:52px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:24px}
.sec-head h3{font-size:22px;font-weight:700;color:var(--navy)}
.sec-head .sub{font-size:13px;color:var(--muted);margin-top:4px}
.sec-head a.more{font-size:13px;color:var(--navy);font-weight:600}

/* event cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;
  box-shadow:0 2px 10px rgba(18,58,107,.06);transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(18,58,107,.12);border-color:#cdd8e8}
.card .kinds{display:flex;gap:6px;margin-bottom:10px}
.pill{font-size:11.5px;padding:2px 9px;border-radius:999px;background:#eef2f8;color:var(--navy);font-weight:600}
.pill.theme{background:#fdeef0;color:var(--red)}
.pill.fixed{background:#eaf4ee;color:#1d7a44}
.card h4{font-size:17px;font-weight:700;margin-bottom:6px;color:var(--navy-d)}
.card .rule{font-size:13px;color:var(--muted)}
.card .rule b{color:var(--ink)}
.card ul.docs{list-style:none;margin:14px 0 4px;border-top:1px dashed var(--line);padding-top:12px}
.card ul.docs li{font-size:13px;padding:3px 0;display:flex;justify-content:space-between;gap:10px}
.card ul.docs a{color:var(--navy);font-weight:600}
.card ul.docs a:hover{text-decoration:underline}
.card ul.docs span{color:var(--muted);font-size:12px;white-space:nowrap}
.card .go{margin-top:14px;font-size:13px;color:var(--red);font-weight:700}

/* news */
.news{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.news li{list-style:none;display:flex;align-items:center;gap:14px;padding:13px 20px;border-bottom:1px solid var(--line);font-size:14px}
.news li:last-child{border-bottom:0}
.news li:hover{background:#fafbfd}
.news .cat{font-size:11.5px;color:var(--navy);background:#eef2f8;padding:2px 8px;border-radius:4px;white-space:nowrap}
.news .t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news .d{color:var(--muted);font-size:13px;white-space:nowrap}

/* about */
.about{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:start}
.about p{font-size:14.5px;color:#33404f;margin-bottom:12px}
.facts{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.facts div{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.facts div:last-child{border-bottom:0}
.facts b{color:var(--navy)}

/* partners */
.partners{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.partners div{background:var(--card);border:1px dashed #cfd8e6;border-radius:10px;height:74px;
  display:flex;align-items:center;justify-content:center;font-size:12.5px;color:#8b97a8;text-align:center;padding:6px}

/* footer */
footer{background:var(--navy-d);color:#c9d4e4;padding:38px 0 26px;font-size:13.5px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
footer h5{color:#fff;font-size:14px;margin-bottom:10px;font-weight:700}
footer a{display:block;padding:3px 0;opacity:.85}
footer a:hover{opacity:1;color:#fff}
footer .bt{border-top:1px solid rgba(255,255,255,.14);margin-top:26px;padding-top:16px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;opacity:.75}

/* rules page */
.tabs{display:flex;gap:10px;margin-bottom:22px;flex-wrap:wrap}
.tab{padding:8px 18px;border-radius:8px;background:var(--card);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--muted);cursor:pointer}
.tab.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.edition{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:16px}
.edition h4{font-size:18px;color:var(--navy-d);margin-bottom:4px}
.edition .mt{font-size:13px;color:var(--muted);margin-bottom:14px}
.dtable{width:100%;border-collapse:collapse;font-size:14px}
.dtable th{text-align:left;font-size:12.5px;color:var(--muted);font-weight:600;padding:8px 0;border-bottom:1px solid var(--line)}
.dtable td{padding:10px 0;border-bottom:1px dashed var(--line)}
.dtable td a{color:var(--navy);font-weight:600}
.dtable td a:hover{text-decoration:underline}
.dtable .v{color:var(--red);font-weight:700;white-space:nowrap}
.dtable .dt{color:var(--muted);font-size:13px;white-space:nowrap}

@media(max-width:900px){
  nav.main{display:none}
  .burger{display:block}
  .grid3,.about,.partners,.footer .cols{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .dtable .dt{display:none}
}