/* ============================================================
   Mindframe API 文档 · 样式
   ------------------------------------------------------------
   视觉语言与后台面板保持一致：
     · 深色底 + 紫色/青色渐变（--acc / --acc2）
     · 玻璃拟态卡片（半透明白 + 细边框 + 背景模糊）
     · 无图片素材，全部由 CSS/SVG/排版实现
   ============================================================ */

:root{
  --bg:#07070a;
  --bg2:#0b0b10;
  --panel:rgba(255,255,255,.045);
  --panel2:rgba(255,255,255,.07);
  --stroke:rgba(255,255,255,.09);
  --stroke2:rgba(255,255,255,.16);
  --txt:#eceef4;
  --muted:#9a9aae;
  --dim:#6b6b7d;
  --acc:#7c5cff;
  --acc2:#22d3ee;
  --grad:linear-gradient(135deg,#7c5cff,#22d3ee);
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#ff5c7a;
  --code-bg:#0d0d13;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sidebar-w:268px;
  --topbar-h:60px;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar-h) + 18px)}

body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  line-height:1.75;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}

/* 背景光斑：与后台一致的径向渐变 */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 500px at 6% -8%,rgba(124,92,255,.16),transparent 62%),
    radial-gradient(760px 460px at 98% 2%,rgba(34,211,238,.10),transparent 62%);
}

a{color:var(--acc2);text-decoration:none}
a:hover{text-decoration:underline}

code{
  font-family:var(--mono);
  font-size:.88em;
  background:rgba(255,255,255,.07);
  border:1px solid var(--stroke);
  border-radius:5px;
  padding:1px 5px;
  color:#d8dcf0;
  word-break:break-word;
}

/* ---------------- 顶栏 ---------------- */
.topbar{
  position:sticky;top:0;z-index:60;
  height:var(--topbar-h);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:rgba(7,7,10,.78);
  border-bottom:1px solid var(--stroke);
}
.topbar-in{
  max-width:1440px;margin:0 auto;height:100%;
  padding:0 22px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;font-size:16px;color:var(--txt)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:12px;height:12px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 16px rgba(124,92,255,.65);
}
.brand-sub{color:var(--muted);font-weight:500;font-size:13px;letter-spacing:.04em}

.topnav{display:flex;align-items:center;gap:4px;margin-left:auto}
.topnav a{
  padding:7px 13px;border-radius:9px;
  color:var(--muted);font-size:13.5px;font-weight:500;
  transition:background .18s,color .18s;
}
.topnav a:hover{color:var(--txt);background:var(--panel);text-decoration:none}
.topnav-ext{border:1px solid var(--stroke2)}

.nav-toggle{
  display:none;margin-left:auto;
  width:38px;height:34px;border-radius:9px;
  background:var(--panel);border:1px solid var(--stroke2);
  cursor:pointer;padding:0 9px;
  flex-direction:column;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;height:1.6px;background:var(--txt);border-radius:2px;transition:.2s}

/* ---------------- 布局 ---------------- */
.layout{
  max-width:1440px;margin:0 auto;
  display:grid;
  grid-template-columns:var(--sidebar-w) minmax(0,1fr);
  gap:0;
  padding:0 22px;
}

/* ---------------- 侧边栏 ---------------- */
.sidebar{
  position:sticky;top:var(--topbar-h);
  height:calc(100vh - var(--topbar-h));
  overflow-y:auto;
  padding:22px 16px 60px 0;
  border-right:1px solid var(--stroke);
  scrollbar-width:thin;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:var(--stroke2);border-radius:3px}

.search-wrap{margin-bottom:18px}
.search{
  width:100%;
  padding:9px 13px;
  border-radius:10px;
  background:rgba(0,0,0,.35);
  border:1px solid var(--stroke);
  color:var(--txt);
  font-size:13.5px;
  font-family:var(--font);
}
.search:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(124,92,255,.16)}
.search::placeholder{color:var(--dim)}

.toc-group{margin-bottom:22px}
.toc-title{
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim);margin-bottom:8px;padding-left:10px;
}
.toc-link{
  display:flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:8px;
  color:var(--muted);font-size:13.5px;
  transition:background .16s,color .16s;
}
.toc-link:hover{color:var(--txt);background:var(--panel);text-decoration:none}
.toc-link.active{color:var(--txt);background:var(--panel2);box-shadow:inset 2px 0 0 var(--acc)}
.toc-link.hide{display:none}

.m{
  display:inline-block;flex:0 0 auto;
  font-family:var(--mono);font-size:9.5px;font-weight:700;
  letter-spacing:.04em;
  padding:1.5px 5px;border-radius:4px;
  line-height:1.5;
}
.m.get{background:rgba(52,211,153,.16);color:#6ee7b7;border:1px solid rgba(52,211,153,.3)}
.m.post{background:rgba(124,92,255,.18);color:#b3a1ff;border:1px solid rgba(124,92,255,.34)}

/* ---------------- 正文 ---------------- */
.content{
  padding:34px 0 100px 46px;
  min-width:0;
  max-width:980px;
}

.sec{margin-bottom:64px;scroll-margin-top:calc(var(--topbar-h) + 20px)}
.sec.hide{display:none}

h1{font-size:38px;font-weight:780;letter-spacing:-.025em;line-height:1.18}
h2{
  font-size:25px;font-weight:730;letter-spacing:-.015em;
  margin-bottom:18px;padding-bottom:12px;
  border-bottom:1px solid var(--stroke);
}
h3{font-size:17.5px;font-weight:680;margin:30px 0 10px}
h4{font-size:14px;font-weight:650;margin:22px 0 8px;color:var(--txt)}

p{margin:12px 0;color:#d3d6e2}
.lead{font-size:16.5px;color:#c7cbd9;line-height:1.8}
.muted{color:var(--muted)}
.small{font-size:13.5px}

ul.list{margin:12px 0 12px 4px;list-style:none}
ul.list li{position:relative;padding-left:20px;margin:8px 0;color:#cfd3e0}
ul.list li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:5px;height:5px;border-radius:50%;
  background:var(--grad);
}

/* ---------------- Hero ---------------- */
.hero{padding:6px 0 30px}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);
  border:1px solid var(--stroke2);
  padding:5px 13px;border-radius:999px;
  margin-bottom:18px;
}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--grad)}
.ver{
  font-size:12px;vertical-align:middle;
  padding:3px 9px;border-radius:7px;
  background:rgba(124,92,255,.16);
  border:1px solid rgba(124,92,255,.32);
  color:#b3a1ff;font-weight:600;
  letter-spacing:.02em;
}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:11px;
  font-size:14px;font-weight:640;
  border:1px solid transparent;
  transition:transform .16s,filter .16s,background .16s;
  cursor:pointer;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#08080e;box-shadow:0 8px 26px rgba(124,92,255,.28)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:var(--panel);border-color:var(--stroke2);color:var(--txt)}
.btn-ghost:hover{background:var(--panel2)}

/* ---------------- 卡片 ---------------- */
.cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  margin:34px 0;
}
.card{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:16px;
  padding:20px;
  backdrop-filter:blur(10px);
  transition:border-color .2s,transform .2s;
}
.card:hover{border-color:var(--stroke2);transform:translateY(-2px)}
.card-ic{
  font-size:19px;margin-bottom:10px;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.card h3{margin:0 0 7px;font-size:15px}
.card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7}

/* ---------------- 提示框 ---------------- */
.callout{
  border-radius:13px;
  padding:15px 18px;
  margin:20px 0;
  font-size:14px;
  border:1px solid var(--stroke);
  background:var(--panel);
  line-height:1.72;
}
.callout strong{color:var(--txt)}
.callout-info{border-color:rgba(34,211,238,.28);background:rgba(34,211,238,.06)}
.callout-warn{border-color:rgba(251,191,36,.3);background:rgba(251,191,36,.06)}
.callout-danger{border-color:rgba(255,92,122,.34);background:rgba(255,92,122,.07)}
.callout-sub{color:var(--muted);font-size:13px;margin-top:6px}
.callout.small{font-size:13px;padding:12px 15px}

/* ---------------- 步骤 ---------------- */
.steps{display:flex;flex-direction:column;gap:26px;margin:22px 0}
.step{display:flex;gap:16px}
.step-n{
  flex:0 0 30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  background:var(--grad);color:#08080e;
}
.step-b{flex:1;min-width:0}
.step-b h3{margin-top:2px}

/* ---------------- 代码块 ---------------- */
.code{
  position:relative;
  background:var(--code-bg);
  border:1px solid var(--stroke);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  margin:14px 0;
  font-size:13px;
  line-height:1.7;
}
.code code{
  background:none;border:none;padding:0;
  font-family:var(--mono);
  color:#c8cde0;
  font-size:13px;
  white-space:pre;
  display:block;
}
.code::after{
  content:attr(data-lang);
  position:absolute;top:8px;right:12px;
  font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--dim);
  font-family:var(--mono);
  pointer-events:none;
}
.copy-btn{
  position:absolute;top:6px;right:6px;
  padding:4px 10px;border-radius:7px;
  font-size:11px;
  background:var(--panel2);
  border:1px solid var(--stroke2);
  color:var(--muted);
  cursor:pointer;
  opacity:0;transition:opacity .16s,color .16s;
  font-family:var(--font);
}
.code:hover .copy-btn{opacity:1}
.copy-btn:hover{color:var(--txt)}
.code.copied .copy-btn{opacity:1;color:var(--ok);border-color:rgba(52,211,153,.4)}

/* ---------------- 表格 ---------------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--stroke);
  border-radius:12px;
  margin:16px 0;
  background:rgba(0,0,0,.18);
}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:520px}
thead th{
  text-align:left;
  padding:11px 15px;
  font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--dim);
  border-bottom:1px solid var(--stroke);
  white-space:nowrap;
  background:rgba(255,255,255,.025);
}
tbody td{padding:11px 15px;border-bottom:1px solid rgba(255,255,255,.05);color:#cfd3e0;vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(255,255,255,.028)}

.badge-ok{
  display:inline-block;
  font-size:11px;font-weight:700;
  padding:2px 8px;border-radius:6px;
  background:rgba(52,211,153,.16);
  border:1px solid rgba(52,211,153,.32);
  color:#6ee7b7;
  font-family:var(--mono);
}

/* ---------------- 接口块 ---------------- */
.ep{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:16px;
  padding:22px;
  margin:22px 0;
}
.ep-head{
  display:flex;align-items:center;gap:11px;flex-wrap:wrap;
  padding-bottom:14px;
  border-bottom:1px solid var(--stroke);
  margin-bottom:6px;
}
.ep-path{font-family:var(--mono);font-size:14.5px;font-weight:600;color:var(--txt);background:none;border:none;padding:0}
.ep-scope{
  margin-left:auto;
  font-size:11.5px;
  padding:3px 10px;border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--stroke2);
  color:var(--muted);
  font-family:var(--mono);
}
.ep h4{margin-top:20px}

/* ---------------- 量表卡 ---------------- */
.scale-card{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:16px;
  padding:22px;
  margin:18px 0;
}
.scale-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.scale-head h3{margin:0;font-size:18px}
.tag{
  font-size:11px;font-weight:600;vertical-align:middle;
  padding:2px 9px;border-radius:6px;
  background:rgba(124,92,255,.16);
  border:1px solid rgba(124,92,255,.3);
  color:#b3a1ff;
  margin-left:4px;
}
.scale-meta{margin-left:auto;font-size:12.5px;color:var(--dim);font-family:var(--mono)}
.scale-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:11px 22px;
  margin:16px 0 4px;
  font-size:13.5px;
  color:#cfd3e0;
}
.scale-grid .k{
  display:block;
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--dim);margin-bottom:2px;
}
.scale-grid .warn{color:var(--warn)}
.cite{
  margin-top:16px;padding-top:13px;
  border-top:1px solid var(--stroke);
  font-size:12.5px;color:var(--dim);line-height:1.65;
}

/* ---------------- 时间线 ---------------- */
.timeline{border-left:2px solid var(--stroke);padding-left:22px;margin:20px 0}
.tl-item{position:relative;margin-bottom:24px}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:6px;
  width:9px;height:9px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 0 3px rgba(7,7,10,1);
}
.tl-date{font-size:12px;font-family:var(--mono);color:var(--dim);letter-spacing:.03em}
.tl-body strong{display:block;margin:3px 0 4px;font-size:15px}
.tl-body p{margin:0;font-size:13.5px;color:var(--muted)}

/* ---------------- 页脚 ---------------- */
.foot{
  margin-top:60px;padding-top:22px;
  border-top:1px solid var(--stroke);
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  font-size:13px;color:var(--dim);flex-wrap:wrap;
}
.foot-links{display:flex;gap:18px}

/* ---------------- 回到顶部 ---------------- */
.to-top{
  position:fixed;right:24px;bottom:26px;z-index:50;
  width:42px;height:42px;border-radius:50%;
  background:var(--panel2);
  border:1px solid var(--stroke2);
  color:var(--txt);
  font-size:16px;
  cursor:pointer;
  backdrop-filter:blur(12px);
  opacity:0;pointer-events:none;
  transition:opacity .22s,transform .22s;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px)}

/* ---------------- 搜索高亮 ---------------- */
mark{background:rgba(251,191,36,.28);color:inherit;border-radius:3px;padding:0 2px}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .cards{grid-template-columns:1fr}
  .content{max-width:100%}
}

@media (max-width:900px){
  .layout{grid-template-columns:1fr;padding:0 16px}
  .sidebar{
    position:fixed;top:var(--topbar-h);left:0;right:0;
    height:calc(100vh - var(--topbar-h));
    background:rgba(7,7,10,.97);
    backdrop-filter:blur(20px);
    border-right:none;
    padding:20px 20px 80px;
    transform:translateX(-100%);
    transition:transform .26s cubic-bezier(.2,.7,.3,1);
    z-index:55;
  }
  .sidebar.open{transform:translateX(0)}
  .content{padding:26px 0 80px}
  .nav-toggle{display:flex}
  .topnav{display:none}
  h1{font-size:29px}
  h2{font-size:21px}
  .scale-grid{grid-template-columns:1fr}
  .ep{padding:17px}
  .ep-scope{margin-left:0}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}