:root{--bg:#fbfbf8;--ink:#1d2433;--ink2:#4a5366;--mute:#7a8396;--line:#e6e8ee;--card:#fff;--night:#151b29;
--g:#00a84d;--b:#0052a4;--o:#ef7c1c;--p:#996cac;--n:#b5651d;--r:#e0393e;--y:#a17e46;--rad:14px;--sh:0 1px 2px rgba(20,30,50,.06),0 6px 20px rgba(20,30,50,.06)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Malgun Gothic",sans-serif}
a{color:var(--b);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.age{background:var(--night);color:#cfd5e2;font-size:12.5px;text-align:center;padding:6px 12px;letter-spacing:.02em}
.age b{color:#fff;background:var(--r);border-radius:4px;padding:0 5px;margin-right:6px;font-weight:700}
/* header */
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hd .wrap{display:flex;align-items:center;gap:16px;min-height:62px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;white-space:nowrap}
.logo:hover{text-decoration:none}.logo small{display:block;font-weight:500;font-size:11.5px;color:var(--mute);letter-spacing:.04em}
.logo svg{flex:none}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center;flex-wrap:wrap}
.nav a{color:var(--ink2);font-size:14px;padding:6px 10px;border-radius:999px;display:flex;align-items:center;gap:6px}
.nav a:hover{background:#f1f3f7;text-decoration:none}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex:none;border:2px solid currentColor;background:#fff}
.go{background:var(--ink);color:#fff!important;font-weight:700;padding:8px 14px!important}
.go:hover{background:#000!important}
.mnav{display:none;margin-left:auto}
.mnav summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:10px;padding:6px 12px;font-size:14px}
.mnav summary::-webkit-details-marker{display:none}
.mnav[open] .mpanel{display:grid}
.mpanel{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);padding:10px 18px 16px;gap:6px;grid-template-columns:1fr 1fr;box-shadow:var(--sh)}
.mpanel a{padding:9px 10px;border-radius:10px;background:#f6f7fa;color:var(--ink);font-size:14px;display:flex;gap:8px;align-items:center}
.mpanel .go{grid-column:1/-1;justify-content:center}
@media(max-width:980px){.nav{display:none}.mnav{display:block}}
/* hero */
.hero{background:radial-gradient(1200px 400px at 80% -10%,#e9f1ff 0,transparent 60%),linear-gradient(#fff,#f6f7f3);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;padding-top:40px;padding-bottom:40px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--g);background:#e6f6ee;border-radius:999px;padding:4px 12px}
.hero h1{font-size:clamp(26px,3.4vw,40px);line-height:1.25;margin:14px 0 12px;letter-spacing:-.01em}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,#ffe08a 0)}
.hero p{color:var(--ink2);margin:0 0 18px}
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:15px;background:var(--ink);color:#fff}
.btn:hover{text-decoration:none;filter:brightness(1.15)}
.btn.alt{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.btn.g{background:var(--g)}
.map{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--sh);padding:14px}
.map svg{width:100%;height:auto;display:block}
.map text{font:600 11px "PingFang SC","Microsoft YaHei",sans-serif;fill:#1d2433}
.map a:hover text{fill:#0052a4;text-decoration:underline}
.legend{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:12.5px;color:var(--ink2);padding:8px 4px 0}
.legend a{color:var(--ink2);display:flex;gap:6px;align-items:center}
.stats{display:flex;gap:18px;margin-top:22px;flex-wrap:wrap}
.stats div{font-size:13px;color:var(--mute)}.stats b{display:block;font-size:22px;color:var(--ink)}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:26px;padding-bottom:26px}}
/* sections */
.sec{padding:34px 0}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:16px}
.sec-h h2{margin:0;font-size:24px;display:flex;align-items:center;gap:10px}
.sec-h p{margin:4px 0 0;color:var(--mute);font-size:14px}
.sec-h a{font-size:14px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;border-radius:50%;color:#fff;font-weight:800;font-size:13px;padding:0 6px;border:3px solid #fff;box-shadow:0 0 0 2px currentColor}
/* feature */
.feat{display:grid;grid-template-columns:1.2fr 1fr;background:var(--night);color:#e8ecf4;border-radius:22px;overflow:hidden;box-shadow:var(--sh)}
.feat .ph{position:relative;min-height:260px;background:#0d1220}
.feat .ph img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feat .tx{padding:26px 28px}
.feat .tx h2{font-size:24px;line-height:1.35;margin:10px 0 10px;color:#fff}
.feat .tx p{color:#b9c1d3;font-size:15px;margin:0 0 14px}
.feat .tx a{color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 18px;padding:0;list-style:none}
.chips li,.chips a{font-size:12.5px;border-radius:999px;padding:3px 10px;background:#eef1f6;color:var(--ink2)}
.feat .chips li{background:rgba(255,255,255,.08);color:#dfe5f0}
.eps{display:grid;gap:8px;margin:0 0 18px;padding:0;list-style:none}
.eps a{display:flex;gap:10px;align-items:center;background:rgba(255,255,255,.06);border-radius:12px;padding:9px 12px;font-size:14px}
.eps a:hover{background:rgba(255,255,255,.12);text-decoration:none}
.eps .badge{min-width:28px;height:28px;font-size:11px;box-shadow:none;border:2px solid #fff;background:var(--g)}
@media(max-width:860px){.feat{grid-template-columns:1fr}.feat .ph{min-height:200px;aspect-ratio:16/9}}
/* station cards */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1080px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.grid{grid-template-columns:repeat(2,1fr);gap:12px}}
@media(max-width:420px){.grid{grid-template-columns:1fr}}
.st{background:var(--card);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;border-top:6px solid var(--lc,#0052a4);transition:transform .15s}
.st:hover{transform:translateY(-3px)}
.st .im{aspect-ratio:16/9;background:#eef0f4;overflow:hidden;position:relative}
.st .im img{width:100%;height:100%;object-fit:cover}
.st .no{position:absolute;left:10px;top:10px;background:#fff;color:var(--lc);border:3px solid var(--lc);border-radius:999px;font-weight:800;font-size:12px;padding:1px 9px}
.st .bd{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.st h3{font-size:15px;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.st h3 a{color:var(--ink)}
.st .mt{font-size:12.5px;color:var(--mute);display:flex;justify-content:space-between;gap:8px;margin-top:auto}
.st .ln{color:var(--lc);font-weight:700}
.txtcover{display:flex;align-items:center;justify-content:center;flex-direction:column;height:100%;background:repeating-linear-gradient(90deg,#fff 0 22px,#f4f6fa 22px 44px);color:var(--lc);font-weight:800;text-align:center;padding:10px}
.txtcover span{font-size:12px;color:var(--mute);font-weight:600}
/* line track */
.line{margin:0 0 30px;background:#fff;border-radius:22px;padding:18px 18px 20px;box-shadow:var(--sh)}
.line-h{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.line-h h3{margin:0;font-size:19px}
.line-h p{margin:0;color:var(--mute);font-size:13.5px;flex:1 1 260px}
.track{height:8px;border-radius:8px;background:var(--lc);position:relative;margin:4px 6px 18px}
.track i{position:absolute;top:50%;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;background:#fff;border:4px solid var(--lc)}
/* page heads */
.ph-h{background:#fff;border-bottom:1px solid var(--line);padding:26px 0 22px}
.ph-h h1{margin:8px 0 6px;font-size:clamp(22px,3vw,32px);line-height:1.3}
.ph-h p{margin:0;color:var(--ink2)}
.crumb{font-size:13px;color:var(--mute);display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.crumb li+li:before{content:"›";margin-right:6px;color:#b5bccb}
.crumb a{color:var(--ink2)}
.pager{display:flex;gap:8px;justify-content:center;margin:30px 0 0;flex-wrap:wrap}
.pager a,.pager span{min-width:40px;text-align:center;border-radius:10px;padding:7px 12px;background:#fff;border:1px solid var(--line);color:var(--ink)}
.pager span{background:var(--ink);color:#fff;border-color:var(--ink)}
/* article */
.art{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;padding:26px 0 40px}
@media(max-width:980px){.art{grid-template-columns:1fr}}
.board{background:var(--night);color:#dfe5f0;border-radius:20px;padding:20px 22px;margin-bottom:22px;position:relative;overflow:hidden}
.board:before{content:"";position:absolute;left:0;top:0;bottom:0;width:8px;background:var(--lc)}
.board .row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:#aeb7c9}
.board .row b{color:#fff}
.board h1{color:#fff;font-size:clamp(21px,2.6vw,29px);line-height:1.4;margin:10px 0 12px}
.board .next{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.board .next a{background:rgba(255,255,255,.07);border-radius:12px;padding:8px 12px;color:#fff;font-size:13px;display:block}
.board .next small{display:block;color:#ffcf5c;font-weight:700}
@media(max-width:600px){.board .next{grid-template-columns:1fr}}
.led{font-family:ui-monospace,Menlo,Consolas,monospace;color:#ffcf5c;letter-spacing:.06em}
.content{background:#fff;border-radius:20px;box-shadow:var(--sh);padding:24px 26px}
@media(max-width:600px){.content{padding:18px 16px}.wrap{padding:0 14px}}
.content h2{font-size:20px;margin:26px 0 10px;padding-left:12px;border-left:5px solid var(--lc)}
.content h2:first-child{margin-top:0}
.content p{margin:0 0 12px}
.content figure{margin:16px 0}
.content figure img{border-radius:12px;width:100%}
.content figcaption{font-size:12.5px;color:var(--mute);text-align:center;margin-top:6px}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.gallery figure{margin:0}
@media(max-width:520px){.gallery{grid-template-columns:1fr}}
.content blockquote{margin:16px 0;padding:14px 18px;background:#f5f7fb;border-radius:14px;border-left:5px solid var(--lc);color:var(--ink2)}
.content blockquote p:last-child{margin:0}
.specs{background:#fffaf0;border:1px dashed #e8c98f;border-radius:14px;padding:12px 16px;font-size:15px}
.notice{background:#eef5ff;border-radius:14px;padding:12px 16px;margin:0 0 16px;font-size:15px;color:#24406e}
.tbl{overflow-x:auto;margin:14px 0;border-radius:12px;border:1px solid var(--line)}
.tbl table{border-collapse:collapse;width:100%;font-size:14px;min-width:520px}
.tbl th,.tbl td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.tbl th{background:#f5f7fb}
pre{background:#f5f7fb;border-radius:12px;padding:12px 14px;overflow-x:auto;font-size:13.5px}
code{background:#f1f3f7;border-radius:6px;padding:1px 6px;font-size:.92em}
pre code{background:none;padding:0}
.lock{border:2px dashed var(--lc);border-radius:16px;padding:16px;margin:18px 0;text-align:center;background:#fcfcff}
.lock p{margin:0 0 10px;color:var(--ink2);font-weight:600}
.lock .t{display:inline-block;font-size:11px;font-weight:800;color:#fff;background:var(--lc);border-radius:999px;padding:1px 10px;margin-bottom:8px;letter-spacing:.08em}
.pbox{display:flex;gap:12px;align-items:center;background:#f5f7fb;border-radius:14px;padding:10px 12px;margin:12px 0;color:var(--ink)}
.pbox:hover{text-decoration:none;background:#eef1f7}
.pbox .badge{background:var(--lc);flex:none}
.notes{padding-left:20px;font-size:14.5px;color:var(--ink2)}
.cta{margin:22px 0 0;border-radius:18px;padding:20px;background:linear-gradient(120deg,var(--lc),#1d2433);color:#fff;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta b{font-size:18px}.cta p{margin:4px 0 0;color:#e3e8f2;font-size:14px}
.cta .btn{background:#fff;color:var(--ink)}
.side{display:flex;flex-direction:column;gap:18px}
.box{background:#fff;border-radius:18px;box-shadow:var(--sh);padding:16px}
.box h2,.box h3{font-size:16px;margin:0 0 10px}
.mini{display:flex;gap:10px;padding:8px 0;border-top:1px solid var(--line);color:var(--ink);font-size:13.5px;line-height:1.5}
.mini:first-of-type{border-top:0}
.mini:hover{text-decoration:none;color:var(--b)}
.mini img,.mini .ph0{width:92px;height:52px;object-fit:cover;border-radius:8px;flex:none;background:#eef0f4}
.lines{display:grid;gap:6px;margin:0;padding:0;list-style:none}
.lines a{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:14px;padding:6px 8px;border-radius:10px}
.lines a:hover{background:#f3f5f9;text-decoration:none}
.lines em{margin-left:auto;font-style:normal;color:var(--mute);font-size:12px}
/* info / faq / links */
.info{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.info{grid-template-columns:1fr}}
.info article{background:#fff;border-radius:18px;box-shadow:var(--sh);padding:18px}
.info h3{margin:0 0 8px;font-size:17px}
.info p{margin:0;color:var(--ink2);font-size:14.5px}
.faq details{background:#fff;border-radius:14px;box-shadow:var(--sh);padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:10px 0 0;color:var(--ink2)}
.kw{display:flex;flex-wrap:wrap;gap:8px}
.kw a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink2)}
.kw a:hover{border-color:var(--ink);color:var(--ink);text-decoration:none}
.ft{background:var(--night);color:#aeb7c9;margin-top:30px;padding:34px 0 90px;font-size:14px}
.ft .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:24px}
@media(max-width:760px){.ft .cols{grid-template-columns:1fr}}
.ft h2{color:#fff;font-size:15px;margin:0 0 10px}
.ft a{color:#dfe5f0}
.ft ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.ft .cp{border-top:1px solid #2a3245;margin-top:22px;padding-top:14px;font-size:12.5px;color:#7f889b}
.dock{position:fixed;right:18px;bottom:18px;z-index:30;display:flex;align-items:center;gap:10px;background:#fff;border-radius:999px;box-shadow:0 8px 30px rgba(20,30,50,.18);padding:6px 6px 6px 14px;font-size:13.5px;color:var(--ink)}
.dock b{display:inline-flex;align-items:center;gap:6px}
.dock a{background:var(--g);color:#fff;border-radius:999px;padding:8px 14px;font-weight:700}
.dock a:hover{text-decoration:none;filter:brightness(1.1)}
@media(max-width:600px){.dock{left:10px;right:10px;bottom:10px;justify-content:space-between}}
.e404{text-align:center;padding:70px 0}
.e404 .badge{width:90px;height:90px;font-size:26px;background:var(--r);color:#fff}