:root{
  --bg:#fff; --ink:#1f2937; --sub:#6b7280; --line:#e5e7eb; --card:#f8fafc;
  --wecom:#2563eb; --wecom-bg:#eff6ff;
  --personal:#b45309; --personal-bg:#fef3e2;
  --good:#15803d; --good-bg:#f0fdf4;
  --warn:#b45309; --warn-bg:#fffbeb;
  --serious:#dc2626; --serious-bg:#fef2f2;
  --done:#15803d;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.65; font-size:15px;}
a{color:inherit;}
code{font-family:"SF Mono",Consolas,Menlo,monospace;font-size:12.5px;background:#f3f4f6;
  padding:1px 5px;border-radius:4px;color:#1e3a8a;}
svg{display:inline-block;vertical-align:middle;}

.wrap{max-width:940px;margin:0 auto;padding:36px 24px 90px;}

/* 分批渲染时的"还在出内容"提示（静态开放版用） */
.loading-note{font-size:12.5px;color:var(--sub);padding:18px 4px;display:flex;align-items:center;gap:8px;}
.loading-note::before{content:"";width:10px;height:10px;border-radius:50%;
  border:2px solid var(--line);border-top-color:var(--ink);animation:spin .8s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.loading-note::before{animation:none}}

/* top bar */
.topbar{display:flex;align-items:center;flex-wrap:wrap;row-gap:10px;gap:12px;padding:14px 0;border-bottom:2px solid var(--ink);margin-bottom:24px;}
/* 中文能在任意两字之间断行，不锁 nowrap 的话"AI 分身内部教程"在窄屏上会竖着排出去 */
.topbar .brand{display:flex;align-items:center;gap:6px;font-weight:800;font-size:16px;white-space:nowrap;flex:none;}
.topbar .brand svg{width:18px;height:18px;flex:none;}
.topbar nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap;}
.topbar nav a{font-size:13px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);text-decoration:none;color:var(--sub);transition:.15s;}
.topbar nav a:hover{border-color:#c7ccd1;color:var(--ink);}
.topbar nav a.active{background:var(--ink);color:#fff;border-color:var(--ink);}
@media (max-width:560px){
  .topbar nav{margin-left:0;}
  .topbar .brand{font-size:15px;}
}

/* track pill */
.trackpill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  padding:5px 13px;border-radius:999px;}
.trackpill.wecom{background:var(--wecom-bg);color:var(--wecom);}
.trackpill.personal{background:var(--personal-bg);color:var(--personal);}
.trackpill::before{content:"";width:8px;height:8px;border-radius:50%;flex:none;}
.trackpill.wecom::before{background:var(--wecom);}
.trackpill.personal::before{background:var(--personal);}

/* step card */
.step{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:14px;
  transition:box-shadow .18s, border-color .18s;overflow:hidden;
  scroll-margin-top:64px;}   /* 页头是 sticky 的，定位到某一关时要留出它的高度，否则标题被压在页头下 */
.step.locked{opacity:.5;pointer-events:none;}
.step.open{border-color:var(--ink);box-shadow:0 4px 18px rgba(0,0,0,.05);}
.step-head{display:flex;align-items:center;gap:14px;padding:16px 20px;cursor:pointer;}
.step-num{width:34px;height:34px;border-radius:9px;background:var(--card);color:var(--sub);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex:none;}
.step.done .step-num{background:var(--done);color:#fff;}
.step-title{font-size:15.5px;font-weight:700;flex:1;}
.step-body{display:none;}
.step.open .step-body{display:block;animation:stepin .18s ease;}
@keyframes stepin{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.step.open .step-body{animation:none}}
.step-body-inner{padding:4px 20px 20px;border-top:1px solid var(--line);}

.sec{margin-top:18px;}
.sec-label{font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--sub);
  text-transform:uppercase;display:flex;align-items:center;gap:7px;margin-bottom:7px;}
.sec-label svg{width:14px;height:14px;}
.sec p{margin:6px 0;}
.sec ul,.sec ol{margin:6px 0;padding-left:22px;}
.sec li{margin-bottom:5px;}

.pit{background:var(--serious-bg);border-left:3px solid var(--serious);border-radius:0 6px 6px 0;
  padding:9px 13px;font-size:13.5px;margin:8px 0;}
.pit b{color:var(--serious);}
.tip{background:var(--good-bg);border-left:3px solid var(--good);border-radius:0 6px 6px 0;
  padding:9px 13px;font-size:13.5px;margin:8px 0;}

.verify{border:1px solid var(--line);border-radius:10px;padding:12px 16px;background:var(--card);margin-top:10px;}
.verify .v-row{display:flex;align-items:flex-start;gap:9px;margin-bottom:7px;font-size:13.5px;cursor:pointer;}
.verify .v-row:last-child{margin-bottom:0;}
.verify input[type=checkbox]{margin-top:3px;flex:none;cursor:pointer;}

.answer-box{border:1.5px solid var(--ink);border-radius:10px;padding:14px 16px;margin-top:14px;background:#fffbeb;}
.answer-label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;color:var(--ink);}
.answer-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.answer-field{flex:1;min-width:200px;border:1px solid var(--line);border-radius:8px;padding:9px 12px;
  font-size:14px;font-family:inherit;background:#fff;}
.answer-field:focus{outline:none;border-color:var(--ink);}
select.answer-field{cursor:pointer;}
.answer-textarea{min-height:104px;line-height:1.65;resize:vertical;}
.answer-row:has(.answer-textarea){align-items:flex-start;}
.answer-status{font-size:12px;color:var(--sub);white-space:nowrap;min-width:0;}
.answer-status.saving{color:var(--sub);}
.answer-status.saved{color:var(--good);}
.answer-status.failed{color:var(--serious);}
.answer-file{border:1px dashed var(--line);border-radius:8px;padding:8px;font-size:13px;background:#fff;cursor:pointer;}
.answer-preview{width:100%;margin-top:10px;}
.answer-preview img{max-width:100%;max-height:280px;border-radius:8px;border:1px solid var(--line);display:block;}

.donebtn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;border:none;
  border-radius:999px;padding:10px 22px;font-size:14px;font-weight:600;cursor:pointer;margin-top:16px;
  transition:.15s;}
.donebtn:hover{background:#374151;}
.donebtn.done{background:var(--good);}
.donebtn svg{width:15px;height:15px;}
.donewarn{display:none;align-items:center;gap:7px;color:var(--serious);font-size:13px;font-weight:600;
  margin-top:10px;animation:donewarnIn .2s ease;}
.donewarn.show{display:flex;}
.donewarn svg{width:15px;height:15px;flex:none;}
@keyframes donewarnIn{from{opacity:0;transform:translateY(-3px);}to{opacity:1;transform:translateY(0);}}
.verify.warn{border-color:var(--serious);background:var(--serious-bg);}
.verify.warn .v-row{animation:vrowShake .3s;}
@keyframes vrowShake{0%,100%{transform:translateX(0);}25%{transform:translateX(-3px);}75%{transform:translateX(3px);}}

.lockmsg{display:flex;align-items:center;gap:8px;color:var(--sub);font-size:13px;padding:10px 20px;
  background:var(--card);border-top:1px solid var(--line);}
.lockmsg svg{width:15px;height:15px;flex:none;}

/* progress bar */
.progwrap{margin:18px 0 26px;}
.progbar{height:8px;background:var(--line);border-radius:99px;overflow:hidden;}
.progbar .fill{height:100%;background:var(--ink);border-radius:99px;transition:width .3s;}
.progtext{font-size:12.5px;color:var(--sub);margin-top:6px;}
.freerow{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);}
.freetoggle{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink);cursor:pointer;}
.freetoggle input{cursor:pointer;width:15px;height:15px;}
.jumpbox{display:flex;gap:6px;}
.jumpbox input{width:110px;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:13px;}
.jumpbox input:focus{outline:none;border-color:var(--ink);}
.jumpbox button{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:6px 14px;
  font-size:13px;cursor:pointer;color:var(--ink);}
.jumpbox button:hover{background:#eef1f2;}

/* hero */
.hero{margin-bottom:30px;}
.hero h1{font-size:26px;margin:0 0 10px;letter-spacing:-0.01em;}
.hero p{color:var(--sub);font-size:15px;margin:0 0 6px;max-width:640px;}

/* entry choice cards */
.choices{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px;}
@media(max-width:700px){.choices{grid-template-columns:1fr;}}
.choice{border-radius:16px;border-width:1.5px;border-style:solid;padding:26px 24px;cursor:pointer;
  transition:transform .15s, box-shadow .15s;text-decoration:none;display:block;}
.choice:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.07);}
.choice.wecom{background:var(--wecom-bg);border-color:var(--wecom);color:var(--wecom);}
.choice.personal{background:var(--personal-bg);border-color:var(--personal);color:var(--personal);}
.choice .c-icon{width:44px;height:44px;border-radius:12px;background:#fff;display:flex;
  align-items:center;justify-content:center;margin-bottom:14px;}
.choice .c-icon svg{width:24px;height:24px;}
.choice h2{margin:0 0 8px;font-size:20px;}
.choice p{font-size:13.5px;opacity:.85;margin:0 0 14px;}
.choice .c-meta{font-size:12.5px;font-weight:700;display:flex;align-items:center;gap:6px;opacity:.75;}
.choice .c-meta svg{width:13px;height:13px;}

/* resources grid */
.resgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:24px;}
.rescard{border:1px solid var(--line);border-radius:14px;padding:20px;background:var(--card);
  text-decoration:none;transition:.15s;display:block;}
.rescard:hover{border-color:#c7ccd1;background:#fff;box-shadow:0 4px 14px rgba(0,0,0,.05);}
.rescard .r-icon{width:38px;height:38px;border-radius:10px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.rescard .r-icon svg{width:19px;height:19px;color:var(--ink);}
.rescard h3{margin:0 0 6px;font-size:15.5px;}
.rescard p{margin:0;font-size:13px;color:var(--sub);}

/* aichat widget */
.aichat{border:1px solid var(--line);border-radius:14px;background:#fff;margin-top:16px;overflow:hidden;}
.aichat-head{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line);background:var(--card);}
.aichat-head .title{font-weight:700;font-size:14px;flex:1;}
.aichat-log{padding:16px;max-height:340px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;}
.aichat-msg{max-width:82%;padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.55;white-space:pre-wrap;}
.aichat-msg.user{align-self:flex-end;background:var(--wecom);color:#fff;}
.aichat-msg.bot{align-self:flex-start;background:var(--card);border:1px solid var(--line);white-space:normal;}
.aichat-msg.sys{align-self:center;background:none;color:var(--sub);font-size:12.5px;padding:4px 10px;}

.aichat-msg.bot .md-p{margin:0 0 10px;}
.aichat-msg.bot .md-p:last-child{margin-bottom:0;}
.aichat-msg.bot .md-list{margin:0 0 10px;padding-left:20px;}
.aichat-msg.bot .md-list:last-child{margin-bottom:0;}
.aichat-msg.bot .md-list li{margin-bottom:4px;}
.aichat-msg.bot .md-h{margin:10px 0 6px;font-size:14.5px;font-weight:700;}
.aichat-msg.bot .md-h:first-child{margin-top:0;}
.aichat-msg.bot .md-inline-code{font-family:"SF Mono",Consolas,Menlo,monospace;font-size:12.5px;
  background:#eef0f2;padding:1px 5px;border-radius:4px;color:#1e3a8a;}
.aichat-msg.bot .md-code-block{background:#1f2937;color:#e5e7eb;padding:10px 12px;border-radius:8px;
  overflow-x:auto;font-size:12.5px;margin:0 0 10px;}
.aichat-msg.bot .md-code-block:last-child{margin-bottom:0;}
.aichat-msg.bot .md-code-block code{font-family:"SF Mono",Consolas,Menlo,monospace;white-space:pre;}

.aichat-typing{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;display:inline-flex;gap:4px;}
.aichat-typing span{width:6px;height:6px;border-radius:50%;background:#c4c9ce;animation:aibounce 1s infinite;}
.aichat-typing span:nth-child(2){animation-delay:.15s;}
.aichat-typing span:nth-child(3){animation-delay:.3s;}
@keyframes aibounce{0%,60%,100%{transform:translateY(0);}30%{transform:translateY(-4px);}}
.aichat-form{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line);}
.aichat-input{flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 13px;font-size:14px;
  font-family:inherit;resize:none;min-height:42px;}
.aichat-input:focus{outline:none;border-color:var(--ink);}
.aichat-send{background:var(--ink);color:#fff;border:none;border-radius:10px;padding:0 18px;font-size:14px;
  font-weight:600;cursor:pointer;}
.aichat-send:disabled{opacity:.5;cursor:not-allowed;}

footer.docfoot{margin-top:50px;padding-top:18px;border-top:1px solid var(--line);color:var(--sub);font-size:12.5px;}

/* ------------------------------------------------------------------
   页头 masthead + 目录抽屉（由 shared/shell.js 生成，两个版本共用）
   两条硬规则：页头那一行永不折行；目录只是浮在上层的工具，绝不占正文位置。
   旧 .topbar 那套（8 个药丸硬排一行）只留给管理后台用。
   ------------------------------------------------------------------ */
.masthead{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);}
.mh-bar{display:flex;align-items:center;gap:8px;max-width:1180px;margin:0 auto;padding:0 14px;min-height:50px;}
.mh-bar *{white-space:nowrap;}
.mh-bar > *{flex:none;}
.mh-bar svg{width:15px;height:15px;flex:none;}   /* 组件里的图标一律锁死尺寸，不给它退回 300x150 默认值 */

.mh-btn{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;font-family:inherit;
  color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:6px 12px;cursor:pointer;transition:.15s;}
.mh-btn:hover{border-color:#c7ccd1;background:#fff;}
.mh-btn.on{background:var(--ink);color:#fff;border-color:var(--ink);}

.mh-brand{display:inline-flex;align-items:center;gap:7px;color:var(--ink);text-decoration:none;
  font-weight:800;font-size:15px;}
.mh-brand svg{width:18px;height:18px;}
.mh-brand .bs{display:none;}
.mh-badge{font-size:11px;font-weight:700;color:var(--sub);background:var(--card);
  border:1px solid var(--line);border-radius:999px;padding:2px 8px;}

.mh-tracks{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:2px;}
.mh-tracks a{font-size:13px;font-weight:700;color:var(--sub);text-decoration:none;padding:5px 12px;border-radius:999px;}
.mh-tracks a.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08);}
.mh-tracks .s{display:none;}

.mh-fill{flex:1 1 auto !important;min-width:0;}
.mh-popwrap{position:relative;}
.mh-pop{position:absolute;right:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.12);padding:6px;min-width:168px;z-index:50;}
.mh-pop a{display:block;font-size:13.5px;color:var(--ink);text-decoration:none;padding:8px 11px;border-radius:8px;}
.mh-pop a:hover{background:var(--card);}
.mh-pop a.on{background:var(--card);font-weight:700;}
.mh-pop[hidden]{display:none;}
.mh-acct{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--sub);min-width:0;overflow:hidden;}
.mh-acct .mh-nm{overflow:hidden;text-overflow:ellipsis;max-width:8em;}
.mh-acct a{color:var(--serious);font-weight:700;text-decoration:none;border:1px solid var(--serious);
  border-radius:999px;padding:5px 11px;}
.mh-acct a:hover{background:var(--serious);color:#fff;}

/* 目录抽屉：浮层，默认收起，不 push 正文、宽屏也不常驻 */
.toc{position:fixed;top:0;bottom:0;left:0;width:min(78vw,260px);background:#fff;border-right:1px solid var(--line);
  z-index:60;display:flex;flex-direction:column;transform:translateX(-100%);transition:transform .18s ease;}
.toc.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.18);}
.toc-head{display:flex;align-items:center;gap:6px;padding:12px;font-weight:800;font-size:13px;flex:none;white-space:nowrap;
  border-bottom:1px solid var(--line);}
.toc-head svg{width:14px;height:14px;flex:none;}
.toc-prog{margin-left:auto;font-size:11.5px;font-weight:600;color:var(--sub);}
.toc-x{border:none;background:none;font-size:18px;line-height:1;color:var(--sub);cursor:pointer;padding:0 4px;}
.toc-body{overflow-y:auto;padding:4px 8px 40px;flex:1;}
.toc-scrim{position:fixed;inset:0;background:rgba(15,23,42,.4);z-index:55;opacity:0;pointer-events:none;transition:.18s;}
.toc-scrim.on{opacity:1;pointer-events:auto;}

.toc-day{margin-bottom:1px;}
.toc-dh{display:flex;align-items:center;gap:6px;width:100%;text-align:left;border:none;background:none;
  font-family:inherit;font-size:12.5px;font-weight:700;color:var(--ink);padding:7px 6px;border-radius:7px;cursor:pointer;}
.toc-dh:hover{background:var(--card);}
.toc-dh .caret{width:8px;height:8px;flex:none;border-right:2px solid var(--sub);border-bottom:2px solid var(--sub);
  transform:rotate(-45deg);transition:transform .16s;}
.toc-day.open .toc-dh .caret{transform:rotate(45deg);}
.toc-dh .dn{font-size:10.5px;font-weight:800;letter-spacing:.04em;color:var(--sub);flex:none;white-space:nowrap;}
.toc-dh .dt{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}  /* 标题装不下就省略号，绝不换行撑高 */
.toc-dh .dc{font-size:11px;color:var(--sub);flex:none;white-space:nowrap;}
.toc-day.here .dt{color:var(--wecom);}
.toc-list{list-style:none;margin:0;padding:0 0 4px 12px;display:none;}
.toc-day.open .toc-list{display:block;}
.toc-list a{display:flex;align-items:baseline;gap:6px;font-size:12px;color:var(--sub);text-decoration:none;
  padding:5px 6px;border-radius:6px;}
.toc-list a:hover{background:var(--card);color:var(--ink);}
.toc-list a i{font-style:normal;font-size:10.5px;font-weight:800;flex:none;width:18px;color:var(--sub);}
.toc-list a span{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.toc-list a.done i{color:var(--good);}
.toc-list a.on{background:var(--ink);color:#fff;}
.toc-list a.on i{color:#fff;}

.mh-more .ic-dots{display:none;}
.mh-btn .ic-dots svg,.mh-btn svg.ic-dots{width:15px;height:15px;}
.expandgrp{display:inline-flex;gap:8px;}
@media (max-width:680px){
  .mh-tracks .f{display:none;}
  .mh-tracks .s{display:inline;}
  .mh-badge{display:none;}
}
@media (max-width:560px){
  .mh-bar{gap:7px;padding:0 10px;}
  .mh-nm,.mh-av{display:none;}
  .mh-brand .bt{display:none;}
  .mh-brand .bs{display:inline;}
  .mh-toc .lt{display:none;}          /* 「目录」两字收掉，只留图标（实测这一档最宽需要 397px） */
}
@media (max-width:430px){
  .mh-brand .bs{display:none;}
  .mh-more .lt{display:none;}
  .mh-more .ic-caret{display:none;}   /* 资料按钮不能塌成一个光杆箭头，换成九宫格图标 */
  .mh-more .ic-dots{display:inline-flex;}
  .mh-btn{padding:6px 9px;}
}