:root{--ink:#14212b;--ink2:#3b4a57;--mute:#677685;--line:#e1e7ee;--bg:#f5f7fa;--card:#fff;--brand:#123a5a;--brand2:#0b2840;--acc:#1f8a70;--gold:#e4a53a;--soft:#eaf2f7;--note:#fff7e8;--noteline:#f0dcb0;--r:14px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-wrap:break-word}
img,video,iframe{max-width:100%}
img{height:auto}
a{color:#17609a;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--acc)}
.w{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:30;background:#fff;padding:8px 12px;border-radius:8px}
.hd{background:var(--brand);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 10px rgba(11,40,64,.18)}
.hd .w{display:flex;align-items:center;gap:16px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;margin-right:auto;min-width:0}
.brand:hover{color:#fff}
.brand img{width:34px;height:34px;flex:none;border-radius:9px}
.brand b{display:block;font:800 20px/1.1 system-ui,sans-serif;letter-spacing:.01em}
.brand small{display:block;font-size:12.5px;color:#b9cddd;line-height:1.3}
.nav{display:flex;gap:2px;flex-wrap:wrap}
.nav a{padding:8px 12px;border-radius:999px;color:#dce8f1;text-decoration:none;font-size:15px;font-weight:600}
.nav a:hover,.nav a[aria-current]{background:rgba(255,255,255,.12);color:#fff}
.menu{display:none;position:relative}
.menu summary{list-style:none;cursor:pointer;padding:9px 16px;border:1px solid rgba(255,255,255,.35);border-radius:999px;font-weight:700;font-size:15px;min-height:44px;display:flex;align-items:center}
.menu summary::-webkit-details-marker{display:none}
main{padding:22px 0 48px}
.bc{font-size:14px;color:var(--mute);margin:0 0 12px;display:flex;flex-wrap:wrap;gap:2px 0;align-items:center}
.bc a{color:var(--mute)}
.bc>span{margin:0 7px;opacity:.6}
.bc .cur{color:var(--ink2)}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px;align-items:start}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:34px 42px}
h1{font:800 clamp(25px,3.4vw,36px)/1.2 system-ui,sans-serif;margin:0 0 12px;letter-spacing:-.01em;color:var(--brand2)}
.art h2{font:800 clamp(21px,2.5vw,26px)/1.28 system-ui,sans-serif;margin:34px 0 12px;scroll-margin-top:80px;color:var(--brand2)}
.art h3{font:700 clamp(18px,2vw,21px)/1.35 system-ui,sans-serif;margin:24px 0 8px}
.art h4,.art h5,.art h6{font:700 17px/1.4 system-ui,sans-serif;margin:20px 0 6px}
.art p{margin:0 0 16px}
.art ul,.art ol{padding-left:24px;margin:0 0 18px}
.art li{margin:5px 0}
.art .note{margin:20px 0;padding:14px 18px;border-radius:12px}.art .note p:last-child{margin:0}
.art blockquote{margin:20px 0;padding:14px 20px;border-left:4px solid var(--acc);background:var(--soft);border-radius:0 12px 12px 0}
.art img{display:block;margin:18px auto;border-radius:10px}
.vid{position:relative;aspect-ratio:16/9;margin:18px 0;border-radius:12px;overflow:hidden;background:#000}
.vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--acc);background:#e8f5f0;padding:5px 10px;border-radius:999px;margin-bottom:10px}
.cover{display:block;width:100%;height:auto;border-radius:12px;margin:0 0 20px;background:var(--soft)}
.src{font-size:14.5px;color:var(--ink2)}.src li{margin:4px 0}
.pager .gap{background:transparent;color:var(--mute);border-color:transparent}
.meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px;color:var(--mute);margin:0 0 18px}
.meta span+span::before{content:"·";margin-right:16px;opacity:.6}
.lead{font-size:clamp(17px,2vw,19px);color:var(--ink2);margin:0 0 18px}
.toc{margin:0 0 24px;border:1px solid var(--line);border-radius:12px;background:#fafcfd}
.toc summary{cursor:pointer;padding:12px 16px;font-weight:800;list-style:none;display:flex;justify-content:space-between;min-height:44px;align-items:center}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"+";font-size:22px;line-height:1;color:var(--acc)}
.toc[open] summary::after{content:"−"}
.toc ol{margin:0;padding:0 18px 14px 38px}
.toc li{font-size:15px;margin:4px 0}
.tw{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:18px 0 22px;border:1px solid var(--line);border-radius:10px}
.tw table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;min-width:420px}
.tw th{background:var(--brand);color:#fff;text-align:left;padding:10px 12px;font-weight:700;vertical-align:top}
.tw td{padding:9px 12px;border-top:1px solid var(--line);vertical-align:top}
.tw tr:nth-child(even) td{background:#f8fafc}
.tw td p,.tw th p{margin:0}
.faq details{border:1px solid var(--line);border-radius:12px;margin:0 0 10px;background:#fff}
.faq summary{cursor:pointer;padding:12px 16px;font-weight:700;min-height:44px}
.faq details>div,.faq details>p{margin:0;padding:0 16px 14px;color:var(--ink2)}
.rel{margin:34px 0 0;padding:20px 22px;border:1px solid var(--line);border-radius:12px;background:#fafcfd}
.rel h2{margin:0 0 10px!important;font-size:20px!important}
.rel ul{margin:0;padding-left:20px}
.rel li{margin:6px 0}
.disc{margin:26px 0 0;font-size:14.5px;color:var(--mute);border-top:1px solid var(--line);padding-top:14px}
.fresh{margin:0 0 20px;padding:12px 16px;border-radius:12px;background:#eaf6f1;border:1px solid #bfe3d4;font-size:15.5px}.fresh p{margin:0}
.note{background:var(--note);border:1px solid var(--noteline)}
.box.note p{margin:0;font-size:14.5px}
.side{position:sticky;top:80px;display:grid;gap:16px}
.box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.box h2{font-size:16px;margin:0 0 10px}
.box ul{list-style:none;padding:0;margin:0}
.box li{margin:0 0 6px;font-size:15px;line-height:1.4}
.box li a{display:block;padding:5px 0;text-decoration:none}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin:16px 0}
.ac{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.ac:hover{border-color:var(--acc);box-shadow:0 10px 22px rgba(18,58,90,.09);color:var(--ink)}
.ac b{font-size:16.5px;line-height:1.35;margin:0 0 6px}
.ac span{font-size:14.5px;color:var(--mute);line-height:1.5}
.ac i{font-style:normal;font-size:12px;font-weight:800;color:var(--acc);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.list{list-style:none;padding:0;margin:14px 0;columns:2;column-gap:28px}
.list li{break-inside:avoid;margin:0 0 8px;font-size:15.5px;line-height:1.45}
.pager{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0}
.pager a,.pager span{padding:9px 14px;border-radius:10px;border:1px solid var(--line);background:#fff;text-decoration:none;min-width:44px;text-align:center}
.pager span{background:var(--brand);color:#fff;border-color:var(--brand)}
.hero{background:linear-gradient(135deg,#123a5a,#0b2840 60%,#145a4a);color:#fff;border-radius:20px;padding:42px 44px;margin:0 0 26px}
.hero h1{color:#fff;font-size:clamp(28px,4.2vw,44px);max-width:820px}
.hero p{color:#cfe0ec;font-size:clamp(17px,2vw,20px);max-width:720px;margin:0 0 22px}
.btn{display:inline-flex;align-items:center;min-height:44px;background:var(--gold);color:#1b1404!important;text-decoration:none;font-weight:800;padding:10px 20px;border-radius:12px;margin:0 8px 8px 0}
.btn.ghost{background:transparent;color:inherit!important;border:1px solid currentColor}
.hero .btn.ghost{color:#fff!important;border-color:rgba(255,255,255,.45)}
.sec h2{font:800 clamp(22px,2.7vw,28px)/1.2 system-ui,sans-serif;margin:32px 0 4px;color:var(--brand2)}
.sec>p{color:var(--mute);margin:0 0 6px}
.nf{text-align:center;max-width:640px;margin:20px auto}
.nf .code{font:800 64px/1 system-ui,sans-serif;color:var(--acc);margin:0 0 8px}
.ft{background:var(--brand2);color:#c3d3df;padding:34px 0 24px;font-size:15px}
.ft a{color:#e7f0f6}
.ft .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:26px}
.ft b{color:#fff;display:block;margin-bottom:8px}
.ft nav a{display:block;padding:4px 0;text-decoration:none}
.ft p{margin:0 0 10px}
.ft .bot{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:14px;font-size:13.5px;color:#8ea6b8}
@media (max-width:1000px){.grid{grid-template-columns:minmax(0,1fr)}.side{position:static}}
@media (max-width:880px){.hd .w>.nav{display:none}.menu{display:block}.menu .nav{position:absolute;right:0;top:52px;width:min(280px,calc(100vw - 28px));background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;flex-direction:column;box-shadow:0 14px 30px rgba(0,0,0,.16)}.menu .nav a{color:var(--ink);padding:11px 12px;border-radius:8px}.menu .nav a:hover{background:var(--soft);color:var(--brand2)}}
@media (max-width:640px){body{font-size:16.5px}.w{padding:0 14px}.card{padding:22px 16px;border-radius:12px}.hero{padding:28px 20px;border-radius:16px}.ft .cols{grid-template-columns:1fr}.brand small{display:none}main{padding-top:14px}.list{columns:1}.rel{padding:16px}}
@media print{.hd,.ft,.side,.toc{display:none}.card{border:0;padding:0}}
.pic{margin:22px 0 26px}.art .pic img{display:block;width:100%;height:auto;margin:0;border-radius:12px;background:var(--soft)}.pic figcaption{margin-top:6px;font-size:13px;line-height:1.4;color:var(--mute)}.pic figcaption a{color:var(--mute)}