/* ============================================================
   人口档案馆 · 各国生育率页面样式
   与「各省生育地图」同构但配色区分：地图用靛蓝→浅沙的冷色带，
   界面强调色为靛蓝 --blue（生育地图为暖赭红 --accent）。
   ============================================================ */

:root{
  --bg:#FFFFFF;
  --bg-soft:#F4F4F4;
  --ink:#171A20;
  --body-c:#393C41;
  --muted:#5C5E62;
  --faint:#8E8E8E;
  --line:#EEEEEE;
  --blue:#3E6AE1;
  --blue-deep:#2445A8;
  --blue-wash:rgba(62,106,225,.07);
  --no-data:#E4E5E7;
  --serif:"Universal Sans Display","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Arial,sans-serif;
  --sans:"Universal Sans Text","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}b,strong{font-weight:500;}
html{scroll-behavior:smooth;overflow-y:scroll;}
@view-transition{navigation:auto;}
::view-transition-old(root){animation:vt-out .33s ease both;}
::view-transition-new(root){animation:vt-in .33s ease both;}
@keyframes vt-out{to{opacity:0;transform:translateY(-10px);}}
@keyframes vt-in{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:none;}}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;}
::selection{background:rgba(62,106,225,.14);}
a{color:inherit;text-decoration:none;}
button{font-family:var(--sans);}
[id]{scroll-margin-top:78px;}

/* ---------- 章节（一页两节，上下排列） ---------- */
.sec + .sec{border-top:1px solid var(--line);margin-top:38px;}
.sec-head{max-width:1200px;margin:0 auto;padding:0 32px;}
.sec-head h2{
  font-family:var(--serif);font-weight:500;font-size:clamp(26px,3.2vw,40px);
  letter-spacing:normal;line-height:1.2;margin-top:30px;
}
.sec .board{margin-top:16px;}

/* ---------- 主板（第一节：生育率地图） ---------- */
.board{
  max-width:1200px;margin:22px auto 0;padding:0 32px;
  display:grid;grid-template-columns:1fr 396px;
  height:clamp(560px,calc(100vh - 170px),920px);
}
.map-area{position:relative;overflow:hidden;}
#map{width:100%;height:100%;}

/* 图例卡 */
.legend-card{
  position:absolute;bottom:16px;left:16px;z-index:5;
  background:var(--bg);border-radius:4px;
  padding:10px 14px 12px;min-width:232px;
  
}
.legend-card .lg-title{font-size:11px;color:var(--muted);letter-spacing:normal;margin-bottom:9px;}
.legend-card .lg-bar{position:relative;height:8px;border-radius:4px;}
.legend-card .lg-tick{
  position:absolute;top:-3px;bottom:-3px;width:0;
  border-left:1.5px dashed rgba(23,26,32,.65);
}
.legend-card .lg-ends{
  display:flex;justify-content:space-between;align-items:baseline;margin-top:7px;
  font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums;position:relative;
}
.legend-card .lg-repl{
  position:absolute;left:22%;transform:translateX(-50%);
  font-size:9.5px;color:var(--faint);letter-spacing:normal;white-space:nowrap;
}

/* 国家选择控件 */
.mapsel{position:absolute;top:14px;left:14px;z-index:6;}
.mapsel select{
  font-family:var(--sans);font-size:12.5px;letter-spacing:normal;color:var(--ink);
  padding:8px 30px 8px 14px;border:1px solid var(--line);border-radius:4px;
  background:var(--bg);cursor:pointer;outline:none;appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235C5E62' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
  
  max-width:260px;
}
.mapsel select:hover{border-color:var(--faint);}

/* ---------- 侧栏 ---------- */
.side{border-left:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden;background:var(--bg);}
.side-scroll{flex:1;overflow-y:auto;display:flex;flex-direction:column;}
.side-default{display:flex;flex-direction:column;height:100%;padding:16px 12px 12px;}
.nat-k{text-align:center;font-size:14px;color:var(--muted);letter-spacing:normal;}
.nat-title{
  text-align:center;font-family:var(--serif);font-weight:500;
  font-size:38px;letter-spacing:normal;margin-top:8px;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.nat-delta{text-align:center;margin-top:10px;font-size:12.5px;color:var(--muted);letter-spacing:normal;min-height:19px;}
.nat-delta b{font-weight:500;}
.nat-delta b.up{color:var(--blue);}
.nat-delta b.down{color:var(--blue-deep);}

/* 世界概览三格 */
.ov-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:16px;padding:0 4px;}
.ov{background:var(--bg-soft);border-radius:4px;padding:11px 12px;min-width:0;}
.ov .k{font-size:10.5px;color:var(--faint);letter-spacing:normal;white-space:nowrap;}
.ov .v{
  font-family:var(--serif);font-weight:500;font-size:19px;margin-top:5px;line-height:1.15;
  font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.ov .v .u{font-family:var(--sans);font-size:11.5px;font-weight:400;color:var(--muted);letter-spacing:normal;}
.ov .s{font-size:10.5px;color:var(--muted);margin-top:3px;letter-spacing:normal;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.ov.blue .v{color:var(--blue);}

.rank-cap{font-size:11px;color:var(--faint);letter-spacing:normal;margin:20px 14px 8px;}
/* 排名条形图容器（样式同「各国生育补贴支出」页；高度由 JS 按条目数设置） */
.rank-scroll{flex:1;min-height:0;overflow-y:auto;padding-bottom:6px;}
.rank-bar{width:100%;}

/* ---------- 国家详情 ---------- */
.prov{display:none;flex-direction:column;min-height:0;flex:1;}
.prov.on{display:flex;}
.prov-head{padding:10px 22px 0;}
.prov-head .top{display:flex;justify-content:flex-end;align-items:center;}
.prov-head .close{
  width:28px;height:28px;border:1px solid var(--line);border-radius:50%;background:var(--bg);
  color:var(--muted);cursor:pointer;font-size:13px;line-height:1;transition:all .33s;
}
.prov-head .close:hover{color:var(--blue);border-color:var(--blue);}
.prov-head .p-name{
  font-family:var(--serif);font-weight:500;font-size:30px;letter-spacing:normal;margin-top:2px;
}
.p-en{font-size:10.5px;color:var(--faint);letter-spacing:normal;margin-top:3px;}

.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:14px 22px 0;}
.stat{background:var(--bg-soft);border-radius:4px;padding:12px 15px;min-width:0;}
.stat .k{font-size:11px;color:var(--muted);letter-spacing:normal;}
.stat .v{
  font-family:var(--serif);font-weight:500;font-size:26px;margin-top:5px;line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.stat .x{font-size:11px;color:var(--faint);margin-top:4px;font-variant-numeric:tabular-nums;letter-spacing:normal;}
.stat.blue .v{color:var(--blue);}

.tabs{display:flex;margin:14px 22px 0;background:#F4F4F4;border-radius:4px;padding:3px;gap:2px;flex:none;}
.tabs button{
  flex:1;font-size:13px;letter-spacing:normal;padding:8px 0;border:none;cursor:pointer;
  background:transparent;color:var(--muted);border-radius:4px;
  transition:color .33s,background .33s,box-shadow .33s;
}
.tabs button.on{background:#FFFFFF;color:var(--ink);font-weight:500;}
.tab-body{flex:1;min-height:220px;display:flex;flex-direction:column;padding:6px 8px 12px;}
#trendChart{width:100%;flex:1;min-height:200px;}
.tbl-wrap{flex:1;overflow-y:auto;}
.tbl-wrap table{width:100%;border-collapse:collapse;font-size:12.5px;}
.tbl-wrap th{
  position:sticky;top:0;background:var(--bg);text-align:right;font-weight:500;
  color:var(--muted);letter-spacing:normal;padding:10px 14px 8px;border-bottom:1px solid var(--line);font-size:11px;
}
.tbl-wrap td{text-align:right;padding:6px 14px;border-bottom:1px solid #EEEEEE;color:var(--body-c);font-variant-numeric:tabular-nums;}
.tbl-wrap th:first-child,.tbl-wrap td:first-child{text-align:left;}
.tbl-wrap tr.cur td{color:var(--blue);font-weight:500;background:var(--blue-wash);}
.tbl-notes{padding:12px 14px 16px;border-top:1px solid var(--line);}
.tbl-notes p{margin:5px 0;line-height:1.9;letter-spacing:normal;}
.tbl-notes p.n-light{font-size:10px;color:#A6A8AB;}
.tbl-notes p.n-source{font-size:12px;color:#6E7073;}
.tab-pane{display:none;flex:1;min-height:0;}
.tab-pane.on{display:flex;flex-direction:column;}

/* ---------- 地图底部年份轴（悬浮于地图底部居中，含播放与整十年刻度；
   图例卡加 .lg-top 置于左上角选择框下方） ---------- */
.mini-tl{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:6;
  width:min(330px,calc(100% - 24px));
  padding:9px 14px 8px;
  background:rgba(255,255,255,.95);
  border:1px solid var(--line);border-radius:8px;
  box-shadow:0 4px 18px rgba(23,26,32,.09);
}
.legend-card.lg-top{top:58px;left:14px;bottom:auto;}
.mtl-row{display:flex;align-items:center;gap:10px;}
.mtl-row .play{
  flex:none;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);background:var(--bg);cursor:pointer;
  color:var(--blue);font-size:10px;line-height:1;display:inline-flex;
  align-items:center;justify-content:center;transition:all .33s;
  font-family:var(--sans);letter-spacing:0;
}
.mtl-row .play:hover{border-color:var(--blue);}
.mtl-row .play.playing{background:var(--blue);border-color:var(--blue);color:#fff;}
.mtl-year{
  font-family:var(--serif);font-weight:500;font-size:22px;line-height:1;
  color:var(--blue);min-width:52px;font-variant-numeric:tabular-nums;letter-spacing:normal;
}
/* 行末的年份范围（如 1960~2024），补齐首行留白并交代轴的起止 */
.mtl-row .mtl-range{
  margin-left:auto;font-size:10px;color:var(--faint);
  font-variant-numeric:tabular-nums;letter-spacing:normal;
}
.mtl-track{margin-top:5px;}
.mini-tl input[type=range]{
  display:block;width:100%;height:14px;margin:0;padding:0;
  -webkit-appearance:none;appearance:none;outline:none;cursor:pointer;
  background:linear-gradient(to right, var(--blue) 0%, var(--blue) var(--fill,100%), #EEEEEE var(--fill,100%)) no-repeat center;
  background-size:100% 3px;
  border-radius:2px;
}
.mini-tl input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;
  background:var(--blue);cursor:pointer;border:2.5px solid #fff;
}
.mini-tl input[type=range]::-moz-range-thumb{
  width:12px;height:12px;border-radius:50%;background:var(--blue);cursor:pointer;border:2.5px solid #fff;

}
/* 整十年刻度：与滑杆同宽对位，可点击直达 */
.mtl-ticks{position:relative;height:13px;margin-top:1px;}
.mtl-tick{
  position:absolute;top:0;transform:translateX(-50%);padding:0;border:none;background:none;cursor:pointer;
  font-family:var(--sans);font-size:10px;line-height:13px;color:var(--faint);
  font-variant-numeric:tabular-nums;letter-spacing:normal;transition:color .2s;
}
.mtl-tick:hover{color:var(--blue);}
.mtl-tick.on{color:var(--blue);font-weight:500;}

/* ---------- 说明与页脚 ---------- */
.map-note{
  max-width:1200px;margin:18px auto 0;padding:0 32px;
  font-size:11.5px;line-height:2;color:var(--faint);letter-spacing:normal;
}
.map-note p{margin-top:3px;}
.map-note a{color:var(--faint);text-decoration:underline;text-underline-offset:3px;transition:color .33s;}
.map-note a:hover{color:var(--blue);}
footer{border-top:1px solid var(--line);margin-top:26px;padding:30px 32px 44px;}
.foot-inner{
  max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11.5px;color:var(--faint);letter-spacing:normal;
}

/* ============================================================
   第二节「各国生育补贴支出」（原独立页并入，样式随之吸收；
   与第一节同族：排名条形图 + 粘性国家详情栏 + 完整数据表）
   ============================================================ */

/* ---------- 引言 ---------- */
.lead{max-width:1200px;margin:14px auto 0;padding:0 32px;}
.lead p{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(14px,1.6vw,17px);line-height:1.9;color:var(--ink);
  max-width:46em;
}
.lead p.dim{font-size:13.5px;line-height:2;color:var(--muted);font-weight:400;margin-top:4px;}

/* ---------- 主板覆盖：自动高度 + 粘性侧栏 ---------- */
#support .board{height:auto;grid-template-columns:minmax(0,1fr) 384px;gap:30px;align-items:start;}
#support .side{position:sticky;top:78px;display:block;overflow:visible;padding:4px 0 0 26px;min-height:430px;}

/* 左：年份切换 + 排名条形图 */
.bar-head{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:12px;}
#support .tabs{display:inline-flex;margin:0;}
#support .tabs button{flex:none;font-size:12.5px;padding:6px 16px;}
.bar-cap{font-size:11px;color:var(--faint);letter-spacing:normal;text-align:right;}
#sp-barChart{width:100%;height:900px;}
.bar-tip{margin-top:10px;font-size:11.5px;color:var(--faint);letter-spacing:normal;}

/* 右：粘性详情栏 */
.sel-k{display:block;font-size:11px;color:var(--muted);letter-spacing:normal;margin-bottom:8px;}
.side-sel select{
  width:100%;font-family:var(--sans);font-size:13px;color:var(--ink);
  padding:9px 34px 9px 12px;border:1px solid var(--line);border-radius:4px;
  background:var(--bg);cursor:pointer;outline:none;appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235C5E62' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
  transition:border-color .33s;
}
.side-sel select:hover{border-color:var(--faint);}
.p-head{margin-top:24px;}
.p-head .p-name{font-family:var(--serif);font-weight:500;font-size:30px;letter-spacing:normal;line-height:1.15;}
.p-big{margin-top:14px;display:flex;align-items:baseline;gap:7px;}
.p-big .v{
  font-family:var(--serif);font-weight:500;font-size:40px;line-height:1;
  color:var(--blue);font-variant-numeric:tabular-nums;
}
.p-big small{font-size:12px;color:var(--muted);letter-spacing:normal;}
.p-delta{margin-top:9px;font-size:12.5px;color:var(--muted);letter-spacing:normal;min-height:18px;}
.p-delta b{font-weight:500;color:var(--ink);}
#sp-trendChart{width:100%;height:238px;margin-top:14px;}
/* 图注：分行排列，左缘与上方折线图绘图区左缘对齐（38px = 趋势图 grid.left） */
.t-cap{font-size:10.5px;color:var(--faint);letter-spacing:normal;margin-top:6px;line-height:1.9;text-align:left;padding-left:38px;}
.t-cap .lg{white-space:nowrap;}

/* ---------- 完整数据表 ---------- */
.block{max-width:1200px;margin:0 auto;padding:58px 32px 0;}
.b-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;flex-wrap:wrap;margin-bottom:16px;}
.b-head h2{font-family:var(--serif);font-weight:500;font-size:clamp(20px,2.4vw,27px);letter-spacing:normal;}
.b-head .d{margin-top:6px;font-size:12.5px;color:var(--muted);letter-spacing:normal;}
.dl{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  font-size:12.5px;letter-spacing:normal;padding:8px 18px;border-radius:4px;
  border:1px solid #D0D1D2;background:#FFFFFF;color:#393C41;
  transition:border-color .33s,color .33s,background-color .33s;
}
.dl:hover{border-color:#171A20;color:#171A20;}
.tbl-scroll{max-height:640px;overflow:auto;border-top:1px solid var(--line);}
.tbl-scroll table{width:100%;border-collapse:separate;border-spacing:0;font-size:12.5px;}
.tbl-scroll th{
  position:sticky;top:0;z-index:2;background:#FFFFFF;
  text-align:right;font-weight:500;color:var(--muted);font-size:11px;letter-spacing:normal;
  padding:11px 12px 9px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.tbl-scroll td{
  text-align:right;padding:5.5px 12px;border-bottom:1px solid #F5F5F6;
  color:var(--body-c);font-variant-numeric:tabular-nums;white-space:nowrap;
}
.tbl-scroll th:first-child,.tbl-scroll td:first-child{
  text-align:left;position:sticky;left:0;background:#FFFFFF;min-width:92px;z-index:1;
}
.tbl-scroll th:first-child{z-index:3;}
.tbl-scroll tbody tr{cursor:pointer;}
.tbl-scroll tbody tr:hover td{background:#FAFAFB;}
.tbl-scroll tbody tr:hover td:first-child{background:#FAFAFB;}
.tbl-scroll tr.cur td{background:var(--blue-wash);color:var(--blue);font-weight:500;}
.tbl-scroll tr.cur td:first-child{background:var(--blue-wash);color:var(--blue);}

/* ---------- 移动端 ---------- */
@media (max-width:960px){
  .sec-head{padding:0 20px;}
  .map-area{display:flex;flex-direction:column;}
  .map-area .mapsel{position:static;align-self:flex-start;margin-bottom:10px;}
  #map{width:100%;}
  .board{grid-template-columns:1fr;height:auto;padding:0 20px;gap:0;}
  .map-area{height:110vw;max-height:480px;}
  .side{border-left:none;border-top:1px solid var(--line);max-height:620px;}
  .lead{padding:0 20px;}
  #support .board{grid-template-columns:1fr;gap:0;}
  #support .side{position:static;max-height:none;padding:24px 0 0;margin-top:28px;min-height:0;}
  #sp-barChart{height:920px;}
  .block{padding:44px 20px 0;}
  .map-note{padding:0 20px;}
  footer .foot-inner{padding:0 20px;}
}