:root{--wb-maxw:1320px;--wb-blue:#2563eb;--wb-purple:#7c3aed;--wb-ink:#0f172a;--wb-body:#1f2937;--wb-sub:#64748b;--wb-line:#e7eaf1;--wb-fs-base:16px;}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:#f4f6f9;color:#1f2937;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;min-height:100vh;}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--wb-line);box-shadow:0 1px 12px rgba(31,41,55,.04);overflow:visible;}
.site-header__inner{max-width:var(--wb-maxw);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:20px;}
@media (max-width:560px){.site-header__inner{padding:9px 12px;gap:10px;}}
.site-header .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--wb-ink);text-decoration:none;white-space:nowrap;flex:0 0 auto;}
.site-header .brand .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900;box-shadow:0 4px 12px rgba(37,99,235,.35);}
.site-header .brand b{background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));-webkit-background-clip:text;background-clip:text;color:transparent;}
.site-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;position:relative;z-index:70;}
.site-nav::-webkit-scrollbar{display:none;}
.site-nav a{flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:#475569;text-decoration:none;white-space:nowrap;transition:.16s;}
.site-nav a:hover{color:var(--wb-blue);background:#eef2ff;}
.site-nav a.active{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));box-shadow:0 4px 12px rgba(37,99,235,.3);}
@media (max-width:860px){.site-nav{-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,#000 88%,transparent 100%);}}
.nav-more{position:relative;flex:0 0 auto;display:inline-flex;}
.nav-more__btn{flex:0 0 auto;display:inline-flex;align-items:center;gap:4px;padding:9px 14px;border-radius:999px;border:0;background:transparent;cursor:pointer;font:600 15px/1.6 inherit;color:#475569;white-space:nowrap;transition:.16s;}
.nav-more__btn:hover{color:var(--wb-blue);background:#eef2ff;}
.nav-more.is-open .nav-more__btn,.nav-more.is-current .nav-more__btn{color:var(--wb-blue);background:#eef2ff;}
.nav-more.is-current .nav-more__btn{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));box-shadow:0 4px 12px rgba(37,99,235,.3);}
.nav-more__menu{position:absolute;top:calc(100% + 10px);right:0;min-width:168px;padding:6px;background:#fff;border:1px solid var(--wb-line);border-radius:14px;box-shadow:0 12px 32px rgba(15,23,42,.12);display:none;z-index:60;}
.nav-more.is-open .nav-more__menu{display:block;}
/* wb.js 的 initNav() 会把下拉菜单 append 到 document.body（顶栏有 backdrop-filter 会建层叠上下文，
   绝对定位的子元素浮不出头），所以 `.nav-more.is-open .nav-more__menu` 这种后代选择器永远匹配不到，
   必须同时有一条「菜单自身带 .is-open」的规则 —— wb.js 的 open() 会给 menu 加这个类。
   漏掉这条的表现就是：点「更多」按钮菜单永远不弹。 */
.nav-more__menu.is-open{display:block;}
.nav-more__menu a{display:block;padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:600;color:#334155;text-decoration:none;white-space:nowrap;transition:.14s;}
.nav-more__menu a:hover{background:#f1f5f9;color:var(--wb-blue);}
.nav-more__menu a.active{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));}
.wb-footer{margin-top:44px;border-top:1px solid var(--wb-line);background:linear-gradient(180deg,#fbfcfe,#f6f8fc);padding:44px 0 0;color:var(--wb-sub);font-size:14.5px;line-height:1.8;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;}
.wb-footer__inner{max-width:var(--wb-maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:36px;}
@media (max-width:900px){.wb-footer__inner{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:560px){.wb-footer{padding-top:32px;}.wb-footer__inner{grid-template-columns:1fr;gap:22px;padding:0 14px;}}
.wb-footer h4{margin:0 0 12px;font-size:15.5px;font-weight:800;color:var(--wb-ink);display:flex;align-items:center;gap:7px;}
.wb-footer h4::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,var(--wb-blue),var(--wb-purple));}
.wb-footer p{margin:0 0 10px;}
.wb-footer a{color:var(--wb-sub);text-decoration:none;display:inline-block;padding:3px 0;transition:.16s;}
.wb-footer a:hover{color:var(--wb-blue);}
.wb-footer__tools{display:grid;grid-template-columns:1fr 1fr;gap:2px 14px;}
.wb-footer__bottom{max-width:var(--wb-maxw);margin:32px auto 0;padding:18px 24px calc(18px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--wb-line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13.5px;color:#94a3b8;}
@media (max-width:560px){.wb-footer__bottom{padding-left:14px;padding-right:14px;justify-content:center;text-align:center;}}
.wb-icp{color:var(--wb-sub);text-decoration:none!important;white-space:nowrap;}
.wb-icp:hover{color:var(--wb-blue);}

/* ===== 页面内容容器 ===== */
.page{max-width:1080px;margin:0 auto;padding:30px 20px 10px;}
.page h1.qq-page-title{font-size:28px;font-weight:800;color:#0f172a;margin:0 0 6px;}
.page .qq-page-sub{color:#64748b;margin:0 0 22px;font-size:15px;}

/* ===== 框架替代样式（原 toolwa 框架类） ===== */
.toolwa-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:52px;padding:0 22px;border:0;border-radius:12px;font-size:17px;font-weight:700;cursor:pointer;transition:.16s;white-space:nowrap;text-decoration:none;}
.toolwa-btn-primary{background:linear-gradient(135deg,#86C038,#6fae22);color:#fff;box-shadow:0 4px 12px rgba(134,192,56,.28);}
.toolwa-btn-primary:hover{filter:brightness(1.05);}
.toolwa-btn-default{background:#eef1f5;color:#475569;}
.toolwa-btn-default:hover{background:#e3e8ef;}
.toolwa-panel{background:#fff;border:1px solid #e7eaf1;border-radius:16px;margin-bottom:22px;overflow:hidden;box-shadow:0 6px 20px rgba(31,41,55,.04);}
.toolwa-panel-hd{font-size:17px;font-weight:800;color:#0f172a;padding:16px 20px;border-bottom:1px solid #eef1f5;background:#fbfcfe;}
.toolwa-panel-bd{padding:20px;}
.toolwa-section-title{font-size:16px;font-weight:800;color:#0f172a;margin:24px 0 14px;}
.qq-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px;}
.qq-tag{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:#52606d;background:#f1f5f9;border:1px solid #e3e8ef;border-radius:999px;padding:5px 12px;}
.qq-summary .qq-grade .lv{font-weight:800;padding:3px 12px;border-radius:999px;font-size:15px;align-self:center;}
.qq-grade .lv.common{color:#5c6677;background:#eef1f5;}
.qq-grade .lv.good{color:#2f9e44;background:#e7f7ec;}
.qq-grade .lv.rare{color:#1c7ed6;background:#e7f1fd;}
.qq-grade .lv.epic{color:#7048e8;background:#f0ebfd;}
.qq-grade .lv.legend{color:#e8590c;background:#fff0e0;}
.markdown-body{color:#475569;line-height:1.8;font-size:15px;}
.markdown-body h2{font-size:20px;color:#0f172a;margin:6px 0 12px;}
.markdown-body h3{font-size:16px;color:#1f2937;margin:18px 0 8px;}
.markdown-body ol,.markdown-body ul{margin:0 0 12px;padding-left:22px;}
.markdown-body li{margin:4px 0;}
@media (max-width:640px){.qq-summary{grid-template-columns:auto auto!important;}.qq-summary .qq-avatar{border-right:0;}}

/* ===== 原站 qq-value-tool 样式（自站点内联样式提取，自包含） ===== */
  .qq-value-tool .qq-input-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 6px; } .qq-value-tool .qq-input { flex: 1; min-width: 220px; height: 52px; padding: 0 18px; font-size: 22px; letter-spacing: 2px; color: #2b3245; background: #fff; border: 2px solid #e3e8ef; border-radius: 12px; outline: none; transition: border-color .2s, box-shadow .2s; font-variant-numeric: tabular-nums; } .qq-value-tool .qq-input:focus { border-color: #86C038; box-shadow: 0 0 0 3px rgba(134, 192, 56, .15); } .qq-value-tool .qq-input::placeholder { color: #c2c9d6; letter-spacing: 0; font-size: 18px; } .qq-value-tool .qq-hint { font-size: 13px; color: #8a94a6; margin: 4px 2px 18px; } .qq-value-tool .qq-hint.error { color: #e25b5b; }  .qq-value-tool .qq-result { display: none; margin-bottom: 20px; } .qq-value-tool .qq-result.has-data { display: block; } .qq-value-tool .qq-summary { display: grid; grid-template-columns: auto auto auto 1fr; align-items: center; column-gap: 0; padding: 22px 24px; background: linear-gradient(135deg, #f7faf2 0%, #eef6e2 100%); border: 1px solid #d9e8c4; border-radius: 14px; }  .qq-value-tool .qq-summary .qq-avatar { padding: 4px 22px 4px 4px; border-right: 1px solid #d9e8c4; } .qq-value-tool .qq-summary .qq-avatar img { width: 64px; height: 64px; border-radius: 14px; object-fit: cover; display: block; background: #e3ecd4; box-shadow: 0 2px 8px rgba(134, 192, 56, .18); }  .qq-value-tool .qq-summary .qq-no, .qq-value-tool .qq-summary .qq-grade { padding: 4px 26px; border-right: 1px solid #d9e8c4; } .qq-value-tool .qq-summary .qq-price { padding: 4px 26px; }  .qq-value-tool .qq-summary .qq-no, .qq-value-tool .qq-summary .qq-grade, .qq-value-tool .qq-summary .qq-price { display: flex; flex-direction: column; justify-content: center; } .qq-value-tool .qq-summary .qq-no .label, .qq-value-tool .qq-summary .qq-grade .label, .qq-value-tool .qq-summary .qq-price .label { font-size: 13px; color: #6b7488; margin-bottom: 6px; } .qq-value-tool .qq-summary .qq-no .num { font-size: 30px; font-weight: 700; color: #2b3245; letter-spacing: 1px; font-variant-numeric: tabular-nums; line-height: 1.1; } .qq-value-tool .qq-summary .qq-grade { position: relative; text-align: center; } .qq-value-tool .qq-summary .qq-grade .lv { font-size: 26px; font-weight: 700; letter-spacing: 1px; line-height: 1.1; } .qq-value-tool .qq-summary .qq-price { text-align: right; align-items: flex-end; } .qq-value-tool .qq-summary .qq-price .range { font-size: 26px; font-weight: 700; color: #86C038; font-variant-numeric: tabular-nums; line-height: 1.2; }  .qq-value-tool .qq-summary .qq-price .range.infinity { font-size: 40px; background: linear-gradient(180deg, #ffe9a8 0%, #f6c64b 35%, #e0a514 70%, #b8860b 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #d4a017; text-shadow: 0 0 16px rgba(230, 190, 90, .5); } .qq-value-tool .qq-summary .qq-price .single { font-size: 13px; color: #8a94a6; margin-top: 4px; }  @media (max-width: 560px) { .qq-value-tool .qq-summary { grid-template-columns: 1fr; text-align: center; } .qq-value-tool .qq-summary .qq-avatar { padding: 16px 0; border-right: none; border-bottom: 1px solid #d9e8c4; display: flex; justify-content: center; } .qq-value-tool .qq-summary .qq-no, .qq-value-tool .qq-summary .qq-grade, .qq-value-tool .qq-summary .qq-price { padding: 16px 0; border-right: none; border-bottom: 1px solid #d9e8c4; align-items: center; text-align: center; }  .qq-value-tool .qq-summary .qq-grade.has-wreath { padding: 16px 40px; } .qq-value-tool .qq-summary .qq-price { border-bottom: none; } }  .qq-value-tool .lv.common { color: #6b7488; } .qq-value-tool .lv.good { color: #2e9e6b; }  .qq-value-tool .lv.rare, .qq-value-tool .lv.epic, .qq-value-tool .lv.legend { background: linear-gradient(180deg, #f6d365 0%, #d4a017 45%, #b8860b 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #c9961b; letter-spacing: 2px; }  .qq-value-tool .lv.priceless { background: linear-gradient(180deg, #ffe9a8 0%, #f6c64b 35%, #e0a514 70%, #b8860b 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #d4a017; letter-spacing: 3px; text-shadow: 0 0 14px rgba(230, 190, 90, .45); font-weight: 700; }  .qq-value-tool .qq-grade.has-wreath { position: relative; padding: 0 40px; text-align: center; } .qq-value-tool .qq-grade.has-wreath::before, .qq-value-tool .qq-grade.has-wreath::after { content: ""; position: absolute; top: 50%; width: 40px; height: 40px; transform: translateY(-50%);  background-repeat: no-repeat; background-size: contain; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 1024'><path fill='%23c9961b' d='M513.457231 14.434462c21.031385 119.138462-31.803077 191.881846-69.376 220.100923a9.097846 9.097846 0 0 1-14.178462-4.94277C401.191385 134.045538 442.683077 50.550154 498.491077 8.349538a9.412923 9.412923 0 0 1 14.966154 6.104616zM462.907077 396.209231c78.316308-41.826462 91.608615-133.513846 87.729231-186.683077a9.216 9.216 0 0 0-14.375385-7.010462c-92.002462 58.742154-97.437538 143.340308-86.488615 188.022154a8.96 8.96 0 0 0 13.134769 5.671385zM342.882462 213.681231c103.640615 88.418462 91.923692 181.563077 69.513846 224.590769a9.097846 9.097846 0 0 1-12.071385 3.958154C315.529846 401.427692 317.44 272.265846 327.798154 218.702769c1.378462-7.089231 9.590154-9.708308 15.084308-5.021538zM469.267692 602.624c76.524308-34.855385 79.241846-139.165538 69.277539-198.459077a9.412923 9.412923 0 0 0-13.607385-6.931692C440.024615 440.969846 442.289231 541.538462 456.448 596.381538a9.255385 9.255385 0 0 0 12.819692 6.242462zM319.212308 452.135385c122.387692 60.947692 130.520615 153.304615 117.287384 200.014769a9.216 9.216 0 0 1-11.204923 6.340923C328.073846 634.230154 304.896 525.095385 305.250462 460.603077a9.550769 9.550769 0 0 1 13.942153-8.467692zM533.287385 792.182154c65.634462-32.177231 65.181538-148.657231 42.003692-226.697846a9.452308 9.452308 0 0 0-15.478154-4.371693c-84.145231 75.657846-71.936 186.978462-37.12 228.864a8.723692 8.723692 0 0 0 10.594462 2.205539zM345.540923 690.018462c142.729846 32.452923 170.476308 109.686154 166.144 151.04a9.176615 9.176615 0 0 1-8.073846 7.955692c-109.154462 14.670769-156.750769-84.342154-169.806769-147.790769a9.609846 9.609846 0 0 1 11.736615-11.224616zM629.996308 732.356923c104.073846 84.716308 75.165538 193.969231 46.611692 239.261539-103.187692-39.581538-86.331077-166.183385-61.774769-235.106462a9.570462 9.570462 0 0 1 15.163077-4.155077zM419.308308 900.214154c135.325538-14.769231 211.928615 53.366154 239.202461 98.185846 3.268923 5.395692 0.196923 12.209231-5.888 13.883077-155.529846 42.889846-223.507692-42.318769-241.565538-99.899077a9.491692 9.491692 0 0 1 8.251077-12.169846z'/></svg>"); } .qq-value-tool .qq-grade.has-wreath::before { left: 0; } .qq-value-tool .qq-grade.has-wreath::after { right: 0; transform: translateY(-50%) scaleX(-1); }  .qq-value-tool .qq-dims { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; } @media (max-width: 560px) { .qq-value-tool .qq-dims { grid-template-columns: 1fr; } } .qq-value-tool .qq-dim { background: #fff; border: 1px solid #eef1f6; border-radius: 10px; padding: 14px 16px; } .qq-value-tool .qq-dim .qq-dim-hd { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; } .qq-value-tool .qq-dim .qq-dim-hd .name { font-weight: 600; color: #2b3245; font-size: 14px; } .qq-value-tool .qq-dim .qq-dim-hd .score { font-size: 13px; font-weight: 700; color: #86C038; font-variant-numeric: tabular-nums; } .qq-value-tool .qq-dim .qq-dim-hd .score.zero { color: #b8c0cf; } .qq-value-tool .qq-bar { height: 8px; background: #eef1f6; border-radius: 6px; overflow: hidden; } .qq-value-tool .qq-bar > i { display: block; height: 100%; border-radius: 6px; background: linear-gradient(90deg, #a7d36b, #86C038); width: 0; transition: width .5s ease; } .qq-value-tool .qq-dim .qq-dim-desc { margin-top: 8px; font-size: 12.5px; color: #8a94a6; line-height: 1.6; min-height: 19px; }  .qq-value-tool .qq-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; } .qq-value-tool .qq-tag { display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; font-size: 12.5px; color: #5a7d2a; background: #f1f7e6; border: 1px solid #d9e8c4; border-radius: 20px; } .qq-value-tool .qq-tag i { font-size: 12px; } 

/* ===== 全站导航 · 分类面板（每页独立内联，不共用 css） ===== */
.site-header__inner { position: relative; }
.site-nav .nav-more__btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-left: 4px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--wb-blue); background: #fff; color: var(--wb-blue);
  font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background .15s, color .15s;
}
.site-nav .nav-more__btn:hover { background: #eef2ff; }
.site-nav .nav-more__btn svg { transition: transform .2s; }
.site-nav .nav-more__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-mega {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--wb-line);
  box-shadow: 0 14px 34px rgba(15,23,42,.10);
  display: none;
}
.nav-mega.is-open { display: block; }
.nav-mega__inner {
  max-width: var(--wb-maxw); margin: 0 auto; padding: 20px var(--page-pad-x) 24px;
  display: flex; flex-wrap: wrap; gap: 30px;
}
.nav-cat { min-width: 132px; }
.nav-cat h4 {
  margin: 0 0 10px; font-size: 13px; font-weight: 600; color: var(--wb-sub);
  letter-spacing: .02em;
}
.nav-cat a {
  display: block; padding: 7px 9px; border-radius: 8px;
  color: var(--wb-ink); font-size: 13.5px; text-decoration: none;
  transition: background .12s, color .12s;
}
.nav-cat a:hover { background: #eef2ff; color: var(--wb-blue); }
.nav-cat a.active { background: var(--wb-blue); color: #fff; }
.nav-cat__all {
  display: inline-block; margin-top: 10px; font-weight: 600; color: var(--wb-blue);
  text-decoration: none;
}
.nav-cat__all:hover { text-decoration: underline; }
.wb-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px);
  background: rgba(15,23,42,.92); color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 13.5px; z-index: 999; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; max-width: 86vw;
}
.wb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 640px) {
  .nav-mega__inner { gap: 20px 18px; padding: 16px 14px 20px; }
  .nav-cat { min-width: 44%; }
}

/* ===== 2026-10-17 导航补丁（幂等：重复执行不会叠加）===== */
/* ① 收回按钮 flex：部分页面有全局 button{flex:1 1 0%}，会把导航按钮拉满 */
.site-nav .nav-more__btn { flex: 0 0 auto; width: auto; min-width: 0; }
/* ===== 全站导航 · 分类面板（每页独立内联，不共用 css） ===== */
.site-header__inner { position: relative; }
.site-nav .nav-more__btn {
  display: inline-flex; align-items: center; gap: 6px;
  /* 🔴 必须显式收回 flex：部分工具页 css 里有全局
     `button, .btn, .primary, .ghost { flex: 1 1 0% }`，
     会把「全部工具」按钮拉成 600px 宽的大横框（2026-10-17 修） */
  flex: 0 0 auto; width: auto; min-width: 0;
  margin-left: 4px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--wb-blue); background: #fff; color: var(--wb-blue);
  font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background .15s, color .15s;
}
.site-nav .nav-more__btn:hover { background: #eef2ff; }
.site-nav .nav-more__btn svg { transition: transform .2s; }
.site-nav .nav-more__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-mega {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--wb-line);
  box-shadow: 0 14px 34px rgba(15,23,42,.10);
  display: none;
}
.nav-mega.is-open { display: block; }
.nav-mega__inner {
  max-width: var(--wb-maxw); margin: 0 auto; padding: 20px var(--page-pad-x) 24px;
  display: flex; flex-wrap: wrap; gap: 30px;
}
.nav-cat { min-width: 132px; --cat-dot: var(--wb-blue); }
/* 分类色块：用 nth-child 而不是 data-cat —— 老页面的 nav 由旧 js 生成，
   没有 data-cat 属性，靠序号同样能上色（2026-10-17） */
.nav-mega__inner > .nav-cat:nth-child(1) { --cat-dot: #2563eb; }
.nav-mega__inner > .nav-cat:nth-child(2) { --cat-dot: #7c3aed; }
.nav-mega__inner > .nav-cat:nth-child(3) { --cat-dot: #d97706; }
.nav-mega__inner > .nav-cat:nth-child(4) { --cat-dot: #db2777; }
.nav-mega__inner > .nav-cat:nth-child(5) { --cat-dot: #059669; }
.nav-cat h4 {
  margin: 0 0 10px; font-size: 13px; font-weight: 600; color: var(--wb-sub);
  letter-spacing: .02em; display: flex; align-items: center; gap: 7px;
}
.nav-cat h4::before {
  content: ""; flex: 0 0 auto; width: 8px; height: 8px; border-radius: 3px;
  background: var(--cat-dot);
}
.nav-cat a {
  display: block; padding: 7px 9px; border-radius: 8px;
  color: var(--wb-ink); font-size: 13.5px; text-decoration: none;
  transition: background .12s, color .12s;
}
.nav-cat a:hover { background: #eef2ff; color: var(--wb-blue); }
.nav-cat a.active { background: var(--wb-blue); color: #fff; }
.nav-cat__all {
  display: inline-block; margin-top: 10px; font-weight: 600; color: var(--wb-blue);
  text-decoration: none;
}
.nav-cat__all:hover { text-decoration: underline; }
.wb-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px);
  background: rgba(15,23,42,.92); color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 13.5px; z-index: 999; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; max-width: 86vw;
}
.wb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 640px) {
  .nav-mega__inner { gap: 20px 18px; padding: 16px 14px 20px; }
  .nav-cat { min-width: 44%; }
}

/* ===== 2026-10-17 面板高度补丁（幂等：重复执行不会叠加）===== */
/* ① 收回按钮 flex：部分页面有全局 button{flex:1 1 0%}，会把导航按钮拉满 */
.site-nav .nav-more__btn { flex: 0 0 auto; width: auto; min-width: 0; }

.nav-mega { max-height: calc(100vh - 56px); overflow-y: auto; -webkit-overflow-scrolling: touch; }