/* ==========================================================================
   design token —— 提取自本地快照 bootstrap.css :root 与 bootstrap-bbs.css
   ========================================================================== */
:root{
  --bg:#dee2e6;            /* bootstrap-bbs.css: body{background:#dee2e6} */
  --surface:#f8f9fa;       /* .card */
  --surface-2:#ffffff;
  --border:#dee2e6;
  --border-soft:#e9ecef;
  --text:#212529;
  --text-mid:#454d55;
  --text-mute:#868e96;
  --primary:#1f4977;       /* :root --primary */
  --primary-dark:#173659;  /* .btn-primary:hover */
  --primary-deep:#14304f;
  --primary-soft:#e7edf4;
  --brand:#f04800;         /* logo.png 主色，只作小面积点色 */
  --success-bg:#d9e8dd;
  --success-line:#bedbc4;
  --success-fg:#0c4218;
  --danger:#c6303e;
  --info:#117887;
  --radius:4px;
  --shadow:2px 2px 3px rgba(173,181,189,.25);
  --shadow-crumb:1px 1px 2px rgba(233,236,239,.25);
  --cta-space:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Helvetica Neue",Helvetica,"Microsoft Yahei","Hiragino Sans GB","WenQuanYi Micro Hei","微软雅黑","华文细黑",STHeiti,sans-serif;
  font-size:16px;          /* 参考站为 14px，按 A32 提到 16px */
  line-height:1.7;
  padding-bottom:var(--cta-space);
}
img{max-width:100%;height:auto;border:0}
h1,h2,h3,h4{line-height:1.3;margin:0 0 12px;font-weight:700;overflow-wrap:anywhere}
h1{font-size:28px}
h2{font-size:21px}
h3{font-size:17px}
h4{font-size:16px}
p{margin:0 0 14px;line-height:1.8;overflow-wrap:anywhere}
ul,ol{margin:0 0 14px;padding-left:22px}
li{line-height:1.8}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark);text-decoration:underline}
hr{border:0;border-top:1px solid var(--border-soft);margin:14px 0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:var(--primary);padding:10px 16px;z-index:60}
.skip:focus{left:8px;top:8px}

.wrap{width:100%;padding:0 15px;margin:0 auto}
@media(min-width:576px){.wrap{max-width:540px}}
@media(min-width:768px){.wrap{max-width:720px}}
@media(min-width:992px){.wrap{max-width:960px}}
@media(min-width:1200px){.wrap{max-width:1140px}}

/* ==========================================================================
   顶部导航 —— 参考站为 navbar-dark bg-dark(#343a40)，按 A31 改浅色底
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--border)}
.header-in{display:flex;align-items:center;gap:12px;min-height:60px;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:9px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--primary);text-decoration:none}
.brand-logo{width:36px;height:32px;object-fit:contain}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.5px;white-space:nowrap}
.nav{display:none}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-list a{display:block;padding:8px 11px;border-radius:var(--radius);color:var(--text-mid);font-size:15px}
.nav-list a:hover{background:var(--surface);color:var(--primary);text-decoration:none}
.nav-list a[aria-current="page"]{background:var(--primary);color:#fff}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:8px}
.burger{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;margin-left:auto;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);color:var(--text-mid);cursor:pointer}
.burger:hover{border-color:var(--primary);color:var(--primary)}
.burger-bars,.burger-bars::before,.burger-bars::after{display:block;width:18px;height:2px;border-radius:1px;background:currentColor}
.burger-bars{position:relative}
.burger-bars::before,.burger-bars::after{content:"";position:absolute;left:0}
.burger-bars::before{top:-6px}
.burger-bars::after{top:6px}
@media(min-width:992px){
  .nav{display:block}
  .burger{display:none}
  .header-in{gap:20px}
}

/* 抽屉导航：<992px 展开 */
.drawer{display:none;border-top:1px solid var(--border-soft);padding:4px 15px 12px;background:#fff}
.drawer.is-open{display:block;max-height:calc(100vh - 170px);max-height:calc(100dvh - 170px);
  overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.drawer-group{padding:12px 2px 4px;font-size:12px;letter-spacing:2px;color:var(--text-mute)}
.drawer ul{list-style:none;margin:0;padding:0}
.drawer li a{display:block;padding:12px 2px;border-bottom:1px solid var(--border-soft);color:var(--text-mid);font-size:15px}
.drawer li a:hover{color:var(--primary);text-decoration:none}
@media(min-width:992px){.drawer{display:none!important}}
.noscript-nav{padding:6px 15px 14px;background:#fff;border-top:1px solid var(--border-soft)}
.noscript-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px 16px;margin:0;padding:0}
.noscript-nav a{display:block;padding:8px 0;font-size:15px;color:var(--primary)}

/* ==========================================================================
   按钮 / 徽标
   ========================================================================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;
  border:1px solid transparent;border-radius:var(--radius);background:#e9ecef;color:var(--text-mid);
  font-size:15px;font-weight:600;line-height:1.25;text-align:center;cursor:pointer;min-height:44px}
.btn:hover{background:#dee2e6;color:var(--text);text-decoration:none}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.btn-block{display:flex;width:100%}
.btn-sm{padding:7px 12px;font-size:14px;min-height:38px}
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;line-height:1.6;
  font-weight:400;white-space:nowrap;vertical-align:middle}
.badge-soft{background:#e9ecef;color:var(--text-mid)}
.badge-line{background:#fff;border:1px solid var(--border);color:var(--text-mid)}
.badge-key{background:var(--primary);color:#fff}
.badge-danger{background:var(--danger);color:#fff}
.badge-info{background:var(--info);color:#fff}
.badge-brand{background:#fdece4;color:#a8330a}

/* ==========================================================================
   布局：≥992px 主列 75% + 侧栏 25%（对应 col-lg-9 / col-lg-3）
   ========================================================================== */
.layout{display:flex;flex-wrap:wrap;margin:0 -15px;align-items:flex-start}
.main-col,.aside{width:100%;padding:0 15px;min-width:0}
@media(min-width:992px){
  .main-col{width:75%}
  .aside{width:25%}
}

/* ==========================================================================
   通知条 / 卡片 —— 数值取自 bootstrap-bbs.css
   ========================================================================== */
.alert{padding:12px 16px;margin-bottom:16px;border:1px solid transparent;border-radius:var(--radius);font-size:15px;line-height:1.75}
.alert p:last-child{margin-bottom:0}
.alert-success{background:var(--success-bg);border-color:var(--success-line);color:var(--success-fg)}
.alert-light{background:#fefefe;border-color:#f1f3f5;color:#5c636a}

.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px}
.card-header{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 15px;
  border-bottom:1px solid var(--border);color:var(--text-mid);font-size:14px;
  background-image:linear-gradient(0deg,#e9ecef,#f8f9fa)}
.card-header h2,.card-header h3{margin:0;font-size:16px;color:var(--text-mid)}
.card-body{padding:14px 15px}
.card-foot{padding:10px 15px;border-top:1px solid var(--border);font-size:13px;color:var(--text-mute)}
.card-title{margin:0 0 10px;font-size:16px;font-weight:700}
.card-title .n{font-weight:400;color:var(--text-mute)}

/* 板块标签栏（对应参考站 #nav-top） */
.tabbar{display:flex;flex-wrap:wrap;align-items:center;gap:2px;list-style:none;margin:0;padding:8px 10px;font-size:15px}
.tabbar a{display:block;padding:5px 10px;border-radius:var(--radius);color:var(--text-mid)}
.tabbar a:hover{background:#fff;color:var(--primary);text-decoration:none}
.tabbar a[aria-current="page"]{background:var(--primary);color:#fff}
.tabbar .tab-sep{display:block;width:1px;height:18px;background:var(--border);margin:0 7px}

/* 卡片页签 */
.card-tabs{display:flex;flex-wrap:wrap;gap:4px;list-style:none;margin:0;padding:0}
.card-tabs a{display:block;padding:6px 12px;border:1px solid transparent;border-radius:4px 4px 0 0;
  color:var(--text-mid);font-size:15px}
.card-tabs a:hover{border-color:var(--border);background:#fff;text-decoration:none}
.card-tabs a.active{background-image:linear-gradient(0deg,#f8f9fa,#fff);border-color:var(--border);
  border-bottom-color:#f8f9fa;color:var(--text)}
.card-sort{margin-left:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px}

/* ==========================================================================
   列表行（对应参考站 .thread / .post）
   ========================================================================== */
.row-list{list-style:none;margin:0;padding:0}
.row-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--border-soft)}
.row-item:last-child{border-bottom:0}
.row-item:hover{background:#fff}
.row-item:hover .row-title a{color:var(--primary)}
.row-mark{flex:0 0 auto;width:46px;height:46px;border-radius:5px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;line-height:1;text-align:center;letter-spacing:0}
.row-body{flex:1 1 auto;min-width:0}
.row-title{margin:0 0 4px;font-size:17px;line-height:1.5;overflow-wrap:anywhere}
.row-title .board{color:var(--text-mute);font-weight:400;margin-right:6px}
.row-title a{color:var(--text)}
.row-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 14px;
  font-size:13px;color:var(--text-mute);line-height:1.7}
.row-meta .gist{overflow-wrap:anywhere}
.row-count{white-space:nowrap;color:var(--text-mute)}
.row-fact{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:6px;font-size:13px;color:var(--text-mute)}
@media(max-width:575px){
  .row-mark{width:38px;height:38px;font-size:13px}
  .row-title{font-size:16px}
  .row-item{gap:10px}
}

/* ==========================================================================
   面包屑 / 标签行 / 分组跳转
   ========================================================================== */
.crumbs{margin:14px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;list-style:none;margin:0;
  padding:9px 14px;background:rgba(248,249,250,.85);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow-crumb);font-size:14px}
.crumbs a{color:var(--text-mid)}
.crumbs li[aria-current]{color:var(--text-mute)}
.taglist{width:100%;border-collapse:collapse;font-size:14px;margin-bottom:6px}
.taglist td{padding:6px 8px;vertical-align:top}
.taglist .taglabel{color:var(--text-mute);width:1%;white-space:nowrap}
.taglist a{display:inline-block;margin:0 8px 6px 0;padding:4px 11px;border:1px solid var(--border);
  border-radius:10px;color:var(--text-mid);font-size:14px}
.taglist a:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.taglist a.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.groupbar{margin:20px 0 26px}
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:5px;list-style:none;margin:0;padding:0}
.pager a,.pager .is-label{display:block;padding:7px 13px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--primary);font-size:14px}
.pager .is-label{color:var(--text-mute);background:transparent;border-color:transparent}
.pager a:hover{background:var(--surface);border-color:var(--primary);text-decoration:none}

/* ==========================================================================
   正文区块 / 卡片阵 / 网格
   ========================================================================== */
.block{margin-bottom:28px}
.block-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;margin-bottom:14px}
.block-head h2{margin:0;flex:1 1 auto;min-width:0;font-size:21px}
.block-head .more{flex:0 0 auto;font-size:14px}
.lead{margin:0 0 16px;font-size:17px;line-height:1.8;color:var(--text-mid)}
.prose p{line-height:1.85}
.side-list{list-style:none;margin:0;padding:0}
.side-list li a{display:block;padding:6px 0;font-size:15px;color:var(--primary);
  border-bottom:1px solid var(--border-soft);overflow-wrap:anywhere}
.side-list li:last-child a{border-bottom:0}
.side-list li a:hover{color:var(--primary-dark)}
.noscript-board{list-style:none;display:flex;flex-wrap:wrap;gap:6px 14px;margin:12px 0 0;padding:0;
  font-size:14px}
.noscript-board li a{display:block;padding:6px 0;color:var(--primary)}
.prose .note{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;font-size:15px}
.grid{display:grid;gap:14px;grid-template-columns:1fr;margin:0 0 16px}
@media(min-width:576px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}
.tile{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:14px;color:var(--text)}
.tile:hover{border-color:var(--primary);box-shadow:var(--shadow);text-decoration:none}
.tile .kick{display:block;font-size:12px;letter-spacing:1px;color:var(--text-mute);margin-bottom:6px}
.tile h3{margin:0 0 6px;font-size:17px;color:var(--text)}
.tile p{margin:0;font-size:14px;color:var(--text-mid);line-height:1.7}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 16px;padding:0}
.chips a{display:block;padding:7px 14px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text-mid);font-size:15px}
.chips a:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.chips a[aria-current="page"]{background:var(--primary);border-color:var(--primary);color:#fff}
.chipgroup{margin-bottom:18px}
.chipgroup h3{font-size:15px;color:var(--text-mute);letter-spacing:1px;margin-bottom:10px}

/* ==========================================================================
   表格
   ========================================================================== */
.tablewrap{overflow-x:auto;margin:0 0 16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius)}
table.data{width:100%;border-collapse:collapse;font-size:15px;min-width:540px}
table.data caption{caption-side:top;text-align:left;padding:12px 14px 4px;color:var(--text-mute);font-size:13px}
table.data th,table.data td{border-bottom:1px solid var(--border);border-right:1px solid var(--border);
  padding:9px 12px;text-align:left;vertical-align:top;line-height:1.7}
table.data th:last-child,table.data td:last-child{border-right:0}
table.data tbody tr:last-child th,table.data tbody tr:last-child td{border-bottom:0}
table.data thead th{background:#e9ecef;color:var(--text-mid);font-weight:700}
table.data tbody tr:nth-child(even){background:#fcfcfd}
table.data td:first-child{white-space:nowrap}

/* ==========================================================================
   测评字段块（对应参考站 .input-group 组成的字段行）
   ========================================================================== */
.fieldblock{margin:0 0 6px}
.fieldrow{display:flex;align-items:stretch;margin-bottom:8px}
.fieldrow .fi{flex:0 0 116px;max-width:116px;display:flex;align-items:center;padding:9px 12px;
  background:#e9ecef;border:1px solid var(--border);border-right:0;
  border-radius:var(--radius) 0 0 var(--radius);color:var(--text-mid);font-size:14px}
.fieldrow .fv{flex:1 1 auto;min-width:0;padding:9px 12px;background:#fff;border:1px solid var(--border);
  border-radius:0 var(--radius) var(--radius) 0;font-size:15px;overflow-wrap:anywhere}
@media(max-width:575px){
  .fieldrow{display:block;margin-bottom:10px}
  .fieldrow .fi{max-width:none;border-right:1px solid var(--border);border-bottom:0;
    border-radius:var(--radius) var(--radius) 0 0}
  .fieldrow .fv{border-radius:0 0 var(--radius) var(--radius)}
}

.floor-list{list-style:none;margin:0;padding:0}
.floor{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--border-soft)}
.floor:last-child{border-bottom:0}
.floor-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 14px;font-size:13px;color:var(--text-mute)}
.floor-body{margin-top:7px;line-height:1.8;overflow-wrap:anywhere}
.floor-body p:last-child{margin-bottom:0}
@media(max-width:575px){.floor{gap:10px}}

.quote{background:#e9ecef;border-radius:var(--radius);padding:9px 12px;margin:8px 0 10px;font-size:14px;color:var(--text-mid)}

/* ==========================================================================
   折叠问答
   ========================================================================== */
.faq details{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px}
.faq summary{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;
  padding:13px 15px;cursor:pointer;font-weight:600;font-size:16px;color:var(--text);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";color:var(--text-mute);font-weight:400;flex:0 0 auto}
.faq details[open] summary::after{content:"－"}
.faq .a{padding:0 15px 15px;color:var(--text-mid);font-size:15px;line-height:1.85}
.faq .a p:last-child{margin-bottom:0}

/* ==========================================================================
   侧栏
   ========================================================================== */
.aside .side-title{margin:0 0 10px;font-size:16px;font-weight:700}
.aside .side-note{font-size:14px;color:var(--text-mid);line-height:1.8}
.aside .side-note b{color:var(--text)}
.aside .side-note p:last-child{margin-bottom:0}
.statgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 8px;text-align:center}
.statgrid span{display:block;font-size:12px;color:var(--text-mute)}
.statgrid b{display:block;font-size:18px;color:var(--primary)}
.direct{display:flex;gap:8px}
.direct select{flex:1 1 auto;min-width:0;padding:9px 10px;border:1px solid var(--border);
  border-radius:var(--radius);background:#fff;color:var(--text);font-size:15px;min-height:44px}
@media(max-width:991px){
  .aside{margin-top:22px}
}

/* ==========================================================================
   页脚 —— 参考站为 bg-dark(#343a40) py-4，按 A31 改浅色底
   ========================================================================== */
.site-footer{background:#f1f3f5;border-top:1px solid var(--border);margin-top:34px;padding:30px 0 18px}
.foot-cols{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:576px){.foot-cols{grid-template-columns:1fr 1fr}}
@media(min-width:992px){.foot-cols{grid-template-columns:1.5fr 1fr 1fr 1.1fr}}
.site-footer h2{font-size:13px;letter-spacing:2px;color:var(--text-mute);margin:0 0 10px;font-weight:700}
.foot-brand{display:inline-block;font-size:17px;font-weight:800;color:var(--text);margin-bottom:8px}
.foot-brand:hover{color:var(--primary);text-decoration:none}
.foot-note{font-size:14px;color:var(--text-mid);line-height:1.8;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li a{display:block;padding:5px 0;font-size:15px;color:var(--text-mid)}
.site-footer li a:hover{color:var(--primary)}
@media(max-width:575px){
  /* 手机上 34 个省级区块单列排布会拉出很长一屏，改成两列压缩高度 */
  .site-footer .foot-cols>div>ul{column-count:2;column-gap:14px}
}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 18px;margin-top:24px;
  padding-top:14px;border-top:1px solid var(--border);font-size:13px;color:var(--text-mute)}
.foot-bottom a{color:var(--text-mute)}

/* ==========================================================================
   唯一底部悬浮 CTA —— waterline-rise-plus-pool-tint
   通道一：底沿水位线抬升（4px，transform:scaleY 0→1，ease-out）
   通道二：下半个按钮池色加深（深主色方向叠加，alpha ≤ .34）
   两通道错开约半拍，主循环 2.7s，prefers-reduced-motion 下停在已完成位置
   ========================================================================== */
.site-cta{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:40;
  display:flex;align-items:center;justify-content:center;
  width:min(480px,calc(100vw - 24px));min-height:58px;padding:15px 26px;
  background:var(--primary);color:#fff;border-radius:6px;font-size:17px;font-weight:700;
  letter-spacing:.4px;text-align:center;overflow:hidden;isolation:isolate;
  box-shadow:0 6px 18px rgba(20,48,79,.28)}
.site-cta:hover,.site-cta:focus-visible,.site-cta:active{background:var(--primary-dark);color:#fff;text-decoration:none}
.site-cta>span{position:relative;z-index:2}
.site-cta::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;z-index:1;
  background:linear-gradient(90deg,#5b86b3,#93b6d4 55%,#5b86b3);
  transform:scaleY(0);transform-origin:50% 100%;opacity:.2;
  animation:waterline-rise 2.7s cubic-bezier(.2,.7,.3,1) infinite}
.site-cta::before{content:"";position:absolute;left:0;right:0;bottom:0;height:54%;z-index:0;
  background:linear-gradient(0deg,rgba(9,26,44,.34),rgba(9,26,44,0) 100%);
  opacity:0;animation:pool-tint 2.7s cubic-bezier(.2,.7,.3,1) infinite}
@keyframes waterline-rise{
  0%{transform:scaleY(0);opacity:0}
  16%{transform:scaleY(1);opacity:1}
  56%{transform:scaleY(1);opacity:1}
  80%{transform:scaleY(0);opacity:0}
  100%{transform:scaleY(0);opacity:0}
}
@keyframes pool-tint{
  0%{opacity:0}
  14%{opacity:0}
  42%{opacity:1}
  70%{opacity:1}
  94%{opacity:0}
  100%{opacity:0}
}
@media(max-width:575px){
  .site-cta{left:12px;right:12px;bottom:calc(10px + env(safe-area-inset-bottom));
    transform:none;width:auto;padding:15px 16px;font-size:16px}
}
@media(prefers-reduced-motion:reduce){
  .site-cta::after{animation:none;transform:scaleY(1);opacity:1}
  .site-cta::before{animation:none;opacity:.75}
}