:root{
  --ink:#1b2430; --ink-2:#425466; --ink-3:#5f6f81;
  --line:#e3e9ef; --bg:#f5f8fb; --card:#fff;
  --brand:#0f5c8c; --brand-2:#127a9e;
  --accent:#c8781f;
  --radius:10px;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 "PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-2);text-decoration:underline}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .5em;color:var(--ink)}
h1{font-size:1.75rem}
h2{font-size:1.28rem}
h3{font-size:1.06rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 头部 */
.site-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.head-inner{display:flex;align-items:center;gap:18px;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;flex:0 0 auto}
.brand img{width:44px;height:44px}
.brand-name{font-size:1.22rem;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:.78rem;color:var(--ink-3);border-left:1px solid var(--line);padding-left:10px}
.head-search{margin-left:auto;display:flex;gap:0;width:min(420px,46vw)}
.head-search input{flex:1;min-width:0;border:1px solid var(--line);border-right:0;border-radius:8px 0 0 8px;padding:9px 12px;font-size:.94rem;background:#fff;color:var(--ink)}
.head-search input:focus{outline:2px solid #bfe0f0;outline-offset:-1px}
.head-search button{border:0;min-height:40px;background:var(--brand);color:#fff;padding:0 18px;border-radius:0 8px 8px 0;font-size:.94rem;cursor:pointer}
.head-search button:hover{background:var(--brand-2)}
.site-nav{background:#fff;border-top:1px solid var(--line)}
.nav-inner{display:flex;flex-wrap:wrap;gap:2px;padding:0 16px}
.nav-inner a{display:block;min-height:44px;padding:11px 15px;font-size:.96rem;color:var(--ink-2);border-bottom:3px solid transparent}
.nav-inner a:hover,.nav-inner a.on{color:var(--cat-color,var(--brand));border-bottom-color:var(--cat-color,var(--brand));text-decoration:none;background:#f7fafc}
.nav-home{--cat-color:#0f5c8c}
.nav-faq{--cat-color:#7a5ea8}
.nav-news{--cat-color:#4b7a3f}

.crumb{font-size:.86rem;color:var(--ink-3);padding:10px 0 0}
.crumb a{color:var(--ink-3)}
.crumb .sep{margin:0 6px}
.crumb .cur{color:var(--ink-2)}

.site-main{padding:18px 16px 44px}

/* 通用区块 */
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin:0 0 18px}
.panel>h2:first-child,.panel>h1:first-child{margin-top:0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 12px}
.sec-head h2,.sec-head h1{margin:0}
.sec-head .more{font-size:.86rem;color:var(--ink-3)}
.lead{font-size:1.02rem;color:var(--ink-2)}
.muted{color:var(--ink-3);font-size:.88rem}
.tag{display:inline-block;font-size:.78rem;color:var(--brand);background:#eaf4f9;border-radius:999px;padding:2px 10px;margin:0 6px 6px 0}
.tag:hover{background:#d9ecf5;text-decoration:none}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:9px 16px;border-radius:8px;font-size:.94rem}
.btn:hover{background:var(--brand-2);color:#fff;text-decoration:none}
.btn.ghost{background:#eef4f8;color:var(--brand)}

/* 首页 */
.hero{position:relative;border-radius:var(--radius);overflow:hidden;margin-bottom:18px;background:#0e3c58}
.hero img{width:100%;height:auto;aspect-ratio:3/1;object-fit:cover;opacity:.92}
.hero-txt{position:absolute;left:0;right:0;bottom:0;padding:26px 26px 22px;background:linear-gradient(0deg,rgba(6,28,42,.86),rgba(6,28,42,0))}
.hero-txt h1{color:#fff;margin:0 0 6px;font-size:1.6rem}
.hero-txt p{color:#e6f0f6;margin:0;font-size:.98rem;max-width:62ch}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(212px,1fr));gap:14px;margin-bottom:18px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.cat-card img{aspect-ratio:8/5;object-fit:cover;width:100%}
.cat-card .body{padding:12px 14px 14px;border-top:3px solid var(--cat-color,var(--brand))}
.cat-card h2{margin:0 0 4px;font-size:1.02rem}
.cat-card h2 a{color:var(--ink)}
.cat-card p{margin:0;font-size:.87rem;color:var(--ink-3);line-height:1.6}
.cols{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:18px;align-items:start}
.list{list-style:none;margin:0;padding:0}
.list li{padding:11px 0;border-bottom:1px dashed var(--line);display:flex;gap:12px;align-items:baseline}
.list li:last-child{border-bottom:0}
.list .t{flex:1;min-width:0}
.list .t a{color:var(--ink)}
.list .t a:hover{color:var(--brand)}
.list time{color:var(--ink-3);font-size:.82rem;white-space:nowrap}
.list .desc{display:block;color:var(--ink-3);font-size:.86rem;margin-top:2px}

/* 列表/详情 */
.art-body{font-size:1.02rem}
.art-body h2{margin:1.5em 0 .55em;padding-left:11px;border-left:4px solid var(--brand);font-size:1.18rem}
.art-body h3{margin:1.2em 0 .45em;font-size:1.02rem}
.art-body ul,.art-body ol{margin:0 0 1em}
.art-body blockquote{margin:1em 0;padding:10px 16px;background:#f2f7fa;border-left:3px solid #9fc6da;color:var(--ink-2)}
.art-body table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.92rem}
.art-body th,.art-body td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.art-body th{background:#f4f8fb;font-weight:600}
.art-body img{margin:1em 0;border-radius:8px}
.art-body figure{margin:1.2em 0}
.art-body figcaption{font-size:.84rem;color:var(--ink-3);text-align:center;margin-top:6px}
.art-meta{color:var(--ink-3);font-size:.86rem;margin:0 0 14px;display:flex;gap:14px;flex-wrap:wrap}
.art-cover{margin:0 0 16px}
.rel{margin-top:22px}
.rel h2{font-size:1.02rem}
.rel ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.rel li a{color:var(--ink-2)}

/* 问答 */
.qa{border-bottom:1px solid var(--line);padding:14px 0}
.qa:last-child{border-bottom:0}
.qa h2{margin:0 0 6px;font-size:1.02rem}
.qa h2 a{color:var(--ink)}
.qa .a{margin:0;color:var(--ink-2)}
.tagbar{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}
.tagbar a{padding:6px 13px;border:1px solid var(--line);border-radius:999px;font-size:.88rem;color:var(--ink-2);background:#fff}
.tagbar a.on,.tagbar a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;background:#f1f8fc}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;font-size:.92rem;margin:0 0 14px}
.tbl th,.tbl td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.tbl th{background:#f4f8fb}
.tbl-scroll{overflow-x:auto}

/* 搜索 */
.search-box{display:flex;gap:0;max-width:560px;margin:0 0 18px}
.search-box input{flex:1;border:1px solid var(--line);border-right:0;border-radius:8px 0 0 8px;padding:11px 14px;font-size:1rem}
.search-box button{border:0;background:var(--brand);color:#fff;padding:0 22px;border-radius:0 8px 8px 0;cursor:pointer;font-size:1rem}
.sres{list-style:none;padding:0;margin:0}
.sres li{padding:13px 0;border-bottom:1px solid var(--line)}
.sres .type{font-size:.76rem;color:var(--ink-3);border:1px solid var(--line);border-radius:4px;padding:1px 6px;margin-right:8px}
.sres .t{font-size:1rem}
.sres .u{color:var(--ink-3);font-size:.8rem;word-break:break-all}
.pager{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.pager a,.pager span{padding:6px 12px;border:1px solid var(--line);border-radius:6px;font-size:.9rem;background:#fff}

/* 页脚 */
.site-foot{background:#12303f;color:#c9d9e2;margin-top:30px}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:22px;padding:30px 16px 22px}
.foot-h{font-size:.92rem;color:#fff;margin:0 0 10px;font-weight:600}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin:.3em 0}
.site-foot a{color:#c9d9e2;font-size:.9rem}
.site-foot a:hover{color:#fff}
.foot-about p{font-size:.88rem;color:#b4c7d2;margin:0 0 10px}
.foot-bar{border-top:1px solid #24455a;font-size:.84rem;color:#9db3c0}
.foot-bar .wrap{display:flex;gap:16px;flex-wrap:wrap;align-items:center;padding:12px 16px}
.foot-bar a{color:#9db3c0}

/* 响应式 */
@media (max-width:860px){
  .cols{grid-template-columns:1fr}
  .head-inner{flex-wrap:wrap;gap:10px}
  .head-search{width:100%;margin-left:0;order:3}
  .brand-sub{display:none}
  .hero-txt{padding:16px}
  .hero-txt h1{font-size:1.22rem}
  .nav-inner{padding:0 8px}
  .nav-inner a{padding:9px 11px;font-size:.9rem}
  h1{font-size:1.38rem}
  .panel{padding:16px 14px}
}