:root{
  --bg:#f5f6f9;
  --surface:#ffffff;
  --surface-soft:#f7f8fa;
  --line:#ececf0;
  --line-strong:#dfe0e6;
  --text:#333333;
  --text-soft:#666666;
  --text-mute:#90949c;
  --accent:#f16b6f;
  --accent-fill:#b83f47;
  --accent-deep:#d94f55;
  --accent-2:#ea5515;
  --link:#3a6ea5;
  --focus:#2f6fb0;
  --ink:#22303c;
  --shadow:0 0 10px rgba(0,0,0,.05);
  --shadow-card:0 0 15px #e3e4e8;
  --radius:2px;
  --accent-ink:#ffffff;
  --cta-fill:#2f3a45;
  --cta-edge:#dfe0e6;
  --cta-elevation:0 6px 18px rgba(34,48,60,.16);
  --cta-rail:#eef0f4;
  --cta-sheen:#f7f8fa;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Tahoma,Arial,sans-serif;
  --font-sans:var(--font-body);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:16px;line-height:1.7;overflow-wrap:anywhere}
h1{font-size:26px;line-height:1.45;margin:0 0 10px;font-weight:700}
h2{font-size:19px;line-height:1.5;margin:0 0 8px;font-weight:700}
h3{font-size:17px;line-height:1.55;margin:0 0 6px;font-weight:700}
p{margin:0 0 12px}
a{color:var(--link);text-decoration:none}
a:hover{color:var(--accent-deep)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 14px;border:1px solid var(--line-strong);z-index:80}
.skip:focus{left:8px;top:8px}

.shell{width:100%;max-width:1140px;margin:0 auto;padding:0 14px}

/* top bar */
.topbar{background:#fff;border-bottom:1px solid var(--line);font-size:13px;line-height:30px;color:var(--text-mute)}
.topbar-in{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.city-switch{margin:0;color:var(--text)}
.city-note{color:var(--text-mute);margin-left:10px}
.topbar-links{margin:0;display:flex;gap:14px;flex-wrap:wrap}
.topbar-links a{color:var(--text-mute)}
.topbar-links a:hover{color:var(--accent-deep)}

/* header */
.masthead{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40;box-shadow:0 1px 2px rgba(43,59,93,.12)}
.masthead-in{display:flex;align-items:center;gap:18px;min-height:62px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.brand{flex:0 0 auto;display:flex;flex-direction:column;justify-content:center;gap:1px;padding:4px 16px 4px 0;border-right:1px solid var(--line)}
.brand-mark{font-size:22px;font-weight:700;letter-spacing:1px;color:var(--accent-2);line-height:1.25}
.brand-sub{font-size:12px;color:var(--text-mute);line-height:1.4}
.mainnav{flex:1 1 360px;min-width:280px}
.nav-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px}
.nav-list a{display:block;padding:6px 13px;color:var(--text);font-size:15px;border-radius:var(--radius)}
.nav-list a:hover{background:var(--surface-soft);color:var(--accent-deep)}
.nav-list a.is-current{background:var(--accent-fill);color:#fff}
.head-tools{display:flex;gap:8px;flex:0 0 auto}
.tool-link{padding:5px 14px;border:1px solid var(--line-strong);border-radius:var(--radius);font-size:14px;color:var(--text-soft);background:#fff}
.tool-link:hover{border-color:var(--accent);color:var(--accent-deep)}
.tool-link--solid{background:var(--accent-fill);border-color:var(--accent-fill);color:#fff}
.tool-link--solid:hover{background:var(--accent-deep);color:#fff}

.page-body{padding-top:16px;padding-bottom:30px}
.home-h1{font-size:24px;margin:0 0 6px}
.home-lede{margin:0 0 14px;color:var(--text-soft);font-size:15px;max-width:80ch}

/* hero mosaic */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.tile{position:relative;display:flex;flex-direction:column;justify-content:flex-end;padding:14px 16px;border-radius:var(--radius);min-height:120px;overflow:hidden;color:var(--ink);border:1px solid var(--line)}
.tile::before{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(135deg,rgba(255,255,255,.55) 0 10px,rgba(255,255,255,0) 10px 26px);opacity:.55;pointer-events:none}
.tile:hover{border-color:var(--accent);color:var(--ink)}
.tile-cap{position:absolute;left:14px;top:12px;background:rgba(255,255,255,.9);color:var(--text);font-size:12px;padding:2px 8px;border-radius:3px;border:1px solid rgba(255,255,255,.7)}
.tile h2{position:relative;font-size:20px;line-height:1.45;margin:22px 0 4px;color:var(--ink)}
.tile-note{position:relative;font-size:13px;color:#2c3a44;line-height:1.6}
.tile--main{min-height:374px;justify-content:flex-end}
.tile--main h2{font-size:24px}
.hero-right{display:flex;flex-direction:column;gap:8px}
.tile--wide{flex:1 1 auto;min-height:180px}
.hero-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px;flex:1 1 auto}
.tile--small{min-height:186px}
.tile--small h2{font-size:16px}

.c1{background:linear-gradient(160deg,#fdecea 0%,#f7dfe0 100%)}
.c2{background:linear-gradient(160deg,#eaf1fa 0%,#dde8f6 100%)}
.c3{background:linear-gradient(160deg,#eaf5ef 0%,#dcece3 100%)}
.c4{background:linear-gradient(160deg,#fdf3e4 0%,#f6e8d4 100%)}
.c5{background:linear-gradient(160deg,#f2eefb 0%,#e7e1f7 100%)}
.c6{background:linear-gradient(160deg,#e9f4f7 0%,#d9ebf1 100%)}

/* category strip */
.catstrip{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px}
.catstrip ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px}
.catstrip a{display:block;padding:9px 18px;color:var(--text-soft);font-size:15px}
.catstrip a:hover{background:var(--surface-soft);color:var(--accent-deep)}
.catstrip a.is-current{background:var(--accent-fill);color:#fff}

/* two column */
.content-row{display:flex;gap:14px;align-items:flex-start}
.content-col{flex:1 1 auto;min-width:0;width:74.75%}
.sidebar{flex:0 0 296px;width:25.25%;min-width:0}
.sidebar .widget{margin-bottom:12px}

/* alert */
.alert{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;margin-bottom:12px;border-top:2px solid var(--accent)}
.alert h2{font-size:17px;color:var(--accent-deep);margin:0 0 8px}
.alert-list{list-style:none;margin:0 0 8px;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px 16px}
.alert-list li{font-size:14px;line-height:1.65}
.alert-list strong{display:block;font-size:15px;color:var(--text);margin-bottom:2px}
.alert-list span{color:var(--text-soft)}
.alert-note{margin:0;font-size:13px;color:var(--text-mute);border-top:1px dashed var(--line);padding-top:8px}

/* post cards */
.post-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);margin-bottom:10px;display:flex;gap:0;overflow:hidden}
.thumb{flex:0 0 280px;position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:12px;min-height:186px;border-right:1px solid rgba(255,255,255,.6)}
.thumb:hover{filter:brightness(.98)}
.thumb-cap{align-self:flex-start;background:rgba(255,255,255,.92);color:var(--text);font-size:12px;padding:2px 8px;border-radius:3px}
.thumb-mark{font-size:15px;line-height:1.5;color:#28353f;font-weight:700;max-width:14ch}
.post-info{padding:14px 16px;min-width:0;display:flex;flex-direction:column;flex:1 1 auto}
.entry-title{font-size:18px;line-height:1.5;margin:0 0 6px;font-weight:700}
.entry-title a{color:var(--text)}
.entry-title a:hover{color:var(--accent-deep)}
.post-ex{margin:0 0 10px;font-size:13px;line-height:1.75;color:var(--text-soft)}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--text-mute)}
.cat-cap{display:inline-block;padding:2px 8px;border-radius:3px;font-size:12px;background:#f2f3f6;color:var(--text-soft)}
.cat-cap:hover{color:var(--accent-deep)}
.meta-tags{display:flex;gap:6px;flex-wrap:wrap}
.meta-tags .chip{background:#f7f8fa;border:1px solid var(--line);color:var(--text-soft);font-size:12px;padding:1px 7px;border-radius:3px}
.meta-time{margin-left:auto}

/* chips */
.chip{display:inline-block;padding:2px 9px;border:1px solid var(--line-strong);background:#fff;color:var(--text-soft);font-size:13px;border-radius:3px;line-height:1.7}
.chip:hover{border-color:var(--accent);color:var(--accent-deep)}
.chip--soft{background:var(--surface-soft);border-color:var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:4px}
.chip-cloud{display:flex;flex-wrap:wrap;gap:6px}

/* boards */
.board{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--line)}
.board-head h2{font-size:15px;margin:0;color:var(--text)}
.board-more{font-size:12px;color:var(--text-mute)}
.board-body{padding:12px 14px}
.board-prose p{font-size:15px;line-height:1.8;color:var(--text)}
.board-list .post-card:last-child{margin-bottom:0}
.board-link{margin:10px 0 0;font-size:14px}

/* group grid */
.group-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:12px}
.group{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 14px}
.group h3{font-size:15px;margin:0 0 4px;color:var(--accent-deep)}
.group p{font-size:13px;line-height:1.65;color:var(--text-soft);margin:0 0 6px}

/* column head */
.col-head{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;margin-bottom:12px}
.col-head-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.col-kicker{display:inline-block;background:var(--accent-fill);color:#fff;font-size:12px;padding:2px 9px;border-radius:3px}
.col-head h1{font-size:24px;margin:0 0 6px}
.col-intro p{margin:0 0 6px;font-size:15px;color:var(--text-soft);max-width:78ch}
.col-head .col-intro{font-size:15px;color:var(--text-soft);max-width:78ch}

.crumb{font-size:13px;color:var(--text-mute);display:flex;flex-wrap:wrap;gap:6px;align-items:baseline}
.crumb a{color:var(--text-mute)}
.crumb a:hover{color:var(--accent-deep)}
.crumb .sep{color:#c3c6cd}

/* sidebar widgets */
.widget{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.widget-head{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line)}
.widget-head h2{font-size:14px;margin:0;color:var(--text)}
.widget-more{font-size:12px;color:var(--text-mute)}
.widget-body{padding:10px 14px 12px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{border-bottom:1px dotted var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;justify-content:space-between;gap:8px;padding:6px 0;font-size:14px;color:var(--text-soft)}
.side-list a:hover{color:var(--accent-deep)}
.side-list em{font-style:normal;color:var(--text-mute);font-size:12px}
.side-note{margin:0 0 8px;font-size:13px;line-height:1.75;color:var(--text-soft)}
.side-link{font-size:13px}
.side-pick{display:block;padding:12px;border-radius:var(--radius);border:1px solid var(--line)}
.side-pick-cap{display:inline-block;background:rgba(255,255,255,.92);font-size:12px;padding:2px 8px;border-radius:3px;margin-bottom:6px}
.side-pick strong{display:block;font-size:14px;line-height:1.6;color:var(--ink)}

/* tag index rows */
.tagrow{display:flex;align-items:baseline;gap:10px;padding:9px 0;border-bottom:1px dotted var(--line);color:var(--text-soft)}
.tagrow:last-child{border-bottom:0}
.tagrow strong{flex:0 0 72px;color:var(--text);font-size:15px}
.tagrow span{flex:1 1 auto;font-size:13px;line-height:1.7}
.tagrow em{flex:0 0 auto;font-style:normal;font-size:12px;color:var(--text-mute)}
.tagrow:hover strong{color:var(--accent-deep)}

/* article */
.article{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 22px 18px}
.article-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.article h1{font-size:25px;margin:0 0 8px}
.article-lede{font-size:17px;line-height:1.8;color:var(--text);border-bottom:1px dashed var(--line-strong);padding-bottom:12px;margin:0 0 14px}
.article p{font-size:16px;line-height:1.85;margin:0 0 12px}
.article h2{font-size:18px;margin:16px 0 8px}
.judge{background:var(--surface-soft);border:1px solid var(--line);border-left:0;padding:10px 12px;margin:16px 0;border-radius:var(--radius)}
.judge h2{font-size:15px;margin:0 0 4px;color:var(--accent-deep)}
.judge p{font-size:15px;margin:0;line-height:1.75}
.article-tags{font-size:14px;color:var(--text-mute);margin-top:14px}
.related{border-top:1px solid var(--line);margin-top:16px;padding-top:12px}
.related h2{font-size:16px;margin:0 0 8px;color:var(--text)}
.rel-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.rel-card{display:block;background:var(--surface-soft);border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px}
.rel-card:hover{border-color:var(--accent)}
.rel-cap{display:inline-block;font-size:11px;padding:1px 7px;border-radius:3px;margin-bottom:4px}
.rel-card strong{display:block;font-size:14px;line-height:1.6;color:var(--text);margin-bottom:2px}
.rel-card span:last-child{display:block;font-size:12px;color:var(--text-mute);line-height:1.6}
.backlink{margin:14px 0 0;font-size:14px;color:var(--text-mute)}
.backlink a{color:var(--text-soft)}
.backlink .sep{margin:0 8px;color:#c3c6cd}
.article--plain h1{font-size:24px}

/* pager */
.pager{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-mute);margin-bottom:12px}
.pager-cols{display:flex;gap:12px;flex-wrap:wrap}
.pager-cols a{color:var(--text-soft)}
.pager-cols a:hover{color:var(--accent-deep)}

/* footer */
.site-foot{background:#fff;border-top:1px solid var(--line-strong);margin-top:8px;padding:16px 0 20px}
.foot-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:flex-end}
.foot-left p{margin:0 0 4px;font-size:12px;color:var(--text-mute)}
.foot-links{display:flex;gap:12px;flex-wrap:wrap}
.foot-links a{color:var(--text-mute);font-size:12px}
.foot-right{text-align:right}
.foot-right img{width:188px;height:48px;object-fit:contain;margin-left:auto;margin-bottom:4px}
.foot-right p{margin:0;font-size:12px;color:var(--text-mute)}

@media (max-width:1024px){
  .content-col{width:68%}
  .sidebar{flex-basis:250px;width:32%}
  .thumb{flex-basis:220px;min-height:170px}
  .tile--main{min-height:330px}
}

@media (max-width:880px){
  .content-row{display:block}
  .content-col,.sidebar{width:100%}
  .sidebar{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:4px}
  .sidebar .widget{margin-bottom:0}
  .alert-list{grid-template-columns:1fr}
  .group-grid{grid-template-columns:1fr}
  
  .mainnav{order:3;flex-basis:100%}
  .masthead-in{gap:10px}
  .hero{grid-template-columns:1fr}
  .tile--main{min-height:210px}
  .hero-pair{grid-template-columns:1fr 1fr}
}

@media (max-width:620px){
  .home-h1{font-size:20px}
  .post-card{display:block}
  .thumb{flex-basis:auto;min-height:120px;border-right:0;border-bottom:1px solid rgba(255,255,255,.6)}
  .thumb-mark{max-width:100%}
  .entry-title{font-size:16px}
  
  .sidebar{grid-template-columns:1fr}
  .hero-pair{grid-template-columns:1fr}
  .tile--small{min-height:130px}
  .article{padding:16px 15px}
  .article h1{font-size:21px}
  .rel-grid{grid-template-columns:1fr}
  .foot-right{text-align:left}
  .foot-right img{margin-left:0}
  .catstrip a{padding:8px 12px;font-size:14px}
  .nav-list a{padding:6px 10px;font-size:14px}
  .tagrow{flex-wrap:wrap}
  .tagrow strong{flex-basis:100%}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}