:root{--bg:#f6f8f7;--card:#fff;--ink:#16211e;--mute:#5d6b67;--line:#e2e8e5;--acc:#0f5c4d;--acc2:#12866d;--soft:#e8f4f0;--warn:#fff7e6;--warnl:#f1c27d}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-wrap:break-word}
a{color:var(--acc2)}a:hover{color:var(--acc)}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.top{background:#fff;border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:20px;min-height:62px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.logo{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-size:21px;font-weight:600;letter-spacing:-.3px}
.logo b{color:var(--acc2)}
.menu{display:flex;flex-wrap:wrap;gap:4px 6px;margin-left:auto}
.menu a{padding:6px 11px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:15.5px}
.menu a:hover,.menu a.on{background:var(--soft);color:var(--acc)}
main{padding:18px 16px 40px}
.crumbs{font-size:14px;color:var(--mute);margin:4px 0 14px}
.crumbs a{color:var(--mute)}.crumbs span{margin:0 2px}
.post,.hub,.hero,main>section{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 32px;margin-bottom:22px}
.post{max-width:860px}
h1{font-size:34px;line-height:1.2;margin:0 0 12px;letter-spacing:-.5px}
h2{font-size:26px;line-height:1.25;margin:34px 0 12px}
h3{font-size:20px;line-height:1.3;margin:26px 0 10px}
.meta{color:var(--mute);font-size:14.5px;margin:0 0 18px}
.meta a{color:var(--mute)}
.lead{font-size:18.5px;color:#33423d}
.content p,.content li{margin:0 0 14px}
.content ul,.content ol{padding-left:24px;margin:0 0 16px}
.content figure{margin:20px auto;text-align:center;max-width:min(100%,600px)}
.content figure img{display:block;margin:0 auto;width:auto;max-width:100%;height:auto;border-radius:10px}
.content figcaption{font-size:14px;color:var(--mute);margin-top:6px}
.content blockquote{margin:16px 0;padding:10px 18px;border-left:4px solid var(--acc2);background:var(--soft);border-radius:0 10px 10px 0}
.table-wrap{overflow-x:auto;margin:16px 0;-webkit-overflow-scrolling:touch}
.table-wrap table{border-collapse:collapse;min-width:100%;font-size:15.5px}
.table-wrap th,.table-wrap td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
.table-wrap th{background:var(--soft)}
.note{background:var(--warn);border:1px solid var(--warnl);border-radius:12px;padding:12px 16px;margin:0 0 20px;font-size:15.5px}
.tip{background:var(--soft);border-radius:12px;padding:12px 16px;margin:16px 0}
.toc{background:#f9fbfa;border:1px solid var(--line);border-radius:12px;padding:12px 18px;margin:0 0 22px;font-size:15.5px}
.toc ol{margin:6px 0 0;padding-left:22px}.toc li{margin:3px 0}
.steps{counter-reset:s;list-style:none;padding:0!important}
.steps>li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:16px}
.steps>li:before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--acc2);color:#fff;font-weight:700;text-align:center;line-height:30px;font-size:15px}
.faq details{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin-bottom:8px}
.faq summary{cursor:pointer;font-weight:600}
.faq details div{margin-top:8px}
.related{margin-top:30px;border-top:1px solid var(--line);padding-top:6px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);transition:box-shadow .15s}
.card:hover{box-shadow:0 6px 20px rgba(15,60,50,.10)}
.cimg{display:block;aspect-ratio:16/9;background:var(--soft);overflow:hidden}
.cimg img{width:100%;height:100%;object-fit:cover;display:block}
.cimg .ph{display:flex;align-items:center;justify-content:center;height:100%;font-size:40px;font-weight:700;color:var(--acc2)}
.ct{font-weight:600;font-size:16.5px;line-height:1.35;padding:12px 14px 4px}
.cd{font-size:14.5px;color:var(--mute);line-height:1.45;padding:0 14px 14px}
.hero h1{font-size:36px}
.hero p{font-size:18px;color:#33423d;max-width:780px}
.tools{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tool{background:var(--acc);color:#fff;text-decoration:none;padding:9px 16px;border-radius:10px;font-weight:600;font-size:15.5px}
.tool:hover{background:var(--acc2);color:#fff}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.cat{display:block;border:1px solid var(--line);border-radius:14px;padding:16px;text-decoration:none;color:var(--ink);background:#fbfdfc}
.cat b{display:block;font-size:18px;color:var(--acc)}
.cat span{display:block;font-size:14.5px;color:var(--mute);margin:4px 0}
.cat i{font-style:normal;font-size:13.5px;color:var(--acc2)}
main>section h2:first-child{margin-top:0}
.pager{display:flex;flex-wrap:wrap;gap:6px;margin-top:22px}
.pager a{padding:6px 12px;border:1px solid var(--line);border-radius:8px;text-decoration:none}
.pager a.on{background:var(--acc);color:#fff;border-color:var(--acc)}
.smap{columns:2 300px;padding-left:20px}.smap li{margin-bottom:5px}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:12px;background:#f9fbfa;border:1px solid var(--line);border-radius:14px;padding:18px;margin:10px 0 20px}
.calc label{display:flex;flex-direction:column;font-size:14.5px;color:var(--mute);gap:4px}
.calc input,.calc select{font:inherit;padding:9px 10px;border:1px solid #c9d5d1;border-radius:9px;background:#fff;color:var(--ink);width:100%}
.calc .res{grid-column:1/-1;font-size:22px;font-weight:700;color:var(--acc)}
.calc .small{grid-column:1/-1;font-size:13.5px;color:var(--mute)}
.frame{position:relative;width:100%;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:12px 0 20px}
.frame iframe{display:block;width:100%;height:520px;border:0}
.btn{display:inline-block;background:var(--acc2);color:#fff;text-decoration:none;padding:9px 16px;border-radius:10px;font-weight:600}
.btn:hover{color:#fff;background:var(--acc)}
.foot{background:#10251f;color:#c5d6d0;margin-top:20px;padding:30px 0 14px;font-size:15px}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px}
.foot .logo{color:#fff}.foot .logo b{color:#7ee0c3}
.foot a{color:#c5d6d0}.foot h4{color:#fff;margin:4px 0 10px;font-size:16px}
.foot ul{list-style:none;padding:0;margin:0}.foot li{margin-bottom:6px}
.copy{border-top:1px solid #23443a;margin-top:18px;padding-top:12px;font-size:13.5px;color:#8fa9a0}
@media (max-width:860px){
 .post,.hub,.hero,main>section{padding:20px 18px;border-radius:12px}
 h1,.hero h1{font-size:27px}h2{font-size:22px}h3{font-size:18.5px}
 .foot-in{grid-template-columns:1fr 1fr}.foot-in>div:first-child{grid-column:1/-1}
}
@media (max-width:560px){
 body{font-size:16.5px}
 main{padding:12px 10px 30px}
 .top-in{gap:8px}.menu{margin-left:0;gap:2px}.menu a{padding:5px 8px;font-size:14.5px}
 .post,.hub,.hero,main>section{padding:16px 14px}
 h1,.hero h1{font-size:24px}
 .calc{grid-template-columns:1fr}
 .frame iframe{height:420px}
 .foot-in{grid-template-columns:1fr}
}