:root{
  --accent:#0d9488; --accent-weak:#e9fbf7; --accent-strong:#0f766e;
  --bg:#f6f7fb; --card:#ffffff; --border:#e6e8f0;
  --text:#1f2333; --text-2:#5b6072; --text-3:#8a8fa3;
  --code-bg:#0f1420; --code-text:#e6e9f2;
  --green:#12b76a; --red:#f04438; --orange:#f79009;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.65;overflow-x:hidden}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* ===== 顶栏 ===== */
header{position:fixed;top:0;left:0;right:0;height:54px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;z-index:50;gap:12px}
.logo{width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,#0d9488,#22d3ee);display:flex;align-items:center;justify-content:center;flex:none}
.logo svg{width:18px;height:18px}
header h1{font-size:15px;font-weight:600;white-space:nowrap}
header .sub{font-size:12px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
header .right{margin-left:auto;display:flex;align-items:center;gap:10px}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--text-2);background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:2px 10px;white-space:nowrap}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--green)}
.hamburger{display:none;background:none;border:1px solid var(--border);border-radius:6px;width:34px;height:34px;cursor:pointer;font-size:16px;color:var(--text-2)}
.top-link{font-size:12.5px;color:var(--text-2);padding:5px 10px;border-radius:6px;white-space:nowrap}
.top-link:hover{background:var(--bg);color:var(--accent);text-decoration:none}
.top-link.strong{color:var(--accent);border:1px solid #b6ece4;background:#f0fdfa}

/* ===== 布局 ===== */
.wrap{display:flex;padding-top:54px;min-height:100vh}
nav{width:264px;flex:none;background:#fff;border-right:1px solid var(--border);position:fixed;top:54px;bottom:0;overflow-y:auto;overflow-x:hidden;padding:14px 10px;z-index:40}
nav::-webkit-scrollbar{width:5px}
nav::-webkit-scrollbar-thumb{background:#d5d8e4;border-radius:3px}
main{flex:1;min-width:0;margin-left:264px;padding:26px 34px 80px;max-width:1180px}

/* ===== 侧栏 ===== */
.nav-cat{font-size:11.5px;font-weight:600;color:var(--text-3);letter-spacing:.06em;padding:14px 10px 6px;text-transform:uppercase}
.nav-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:7px;cursor:pointer;color:var(--text-2);font-size:13.5px;border:none;background:none;width:100%;text-align:left;transition:background .15s}
.nav-item:hover{background:var(--bg);color:var(--text)}
.nav-item.active{background:var(--accent-weak);color:var(--accent);font-weight:600}
.nav-item .no{font-size:11px;color:var(--text-3);min-width:20px;font-family:ui-monospace,Consolas,monospace}
.nav-item.active .no{color:var(--accent)}
.nav-item.start{margin-bottom:4px}
.nav-sep{height:1px;background:var(--border);margin:8px 10px}

/* ===== 内容区通用 ===== */
.page-title{font-size:22px;font-weight:700;margin-bottom:4px}
.page-path{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 18px}
.method{font-size:12px;font-weight:700;padding:3px 10px;border-radius:5px;letter-spacing:.04em}
.method.post{background:#e8f5ff;color:#1976d2}
.path-code{font-family:ui-monospace,Consolas,"Courier New",monospace;font-size:13px;background:var(--card);border:1px solid var(--border);padding:5px 12px;border-radius:6px;color:var(--text)}
.type-tag{font-size:12px;background:var(--accent-weak);color:var(--accent);padding:3px 10px;border-radius:999px}
.desc-box{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px 18px;margin-bottom:22px;color:var(--text-2);font-size:13.5px}
.desc-box b{color:var(--text)}
.desc-box .warn{color:var(--orange);font-weight:600}

/* ===== 区块标题 ===== */
.sec-title{font-size:15px;font-weight:600;margin:28px 0 12px;display:flex;align-items:center;gap:8px}
.sec-title::before{content:"";width:3px;height:15px;background:var(--accent);border-radius:2px}

/* ===== 表格 ===== */
.tbl-wrap{background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;margin-bottom:8px}
table{width:100%;border-collapse:collapse;table-layout:fixed}
colgroup col:nth-child(1){width:22%}
colgroup col:nth-child(2){width:12%}
colgroup col:nth-child(3){width:10%}
colgroup col:nth-child(4){width:56%}
th{background:#fafbfe;text-align:left;font-size:12.5px;color:var(--text-3);font-weight:600;padding:10px 14px;border-bottom:1px solid var(--border)}
td{padding:10px 14px;border-bottom:1px solid #f0f1f7;font-size:13px;vertical-align:top}
tr:last-child td{border-bottom:none}
td .k{font-family:ui-monospace,Consolas,monospace;color:var(--text);background:var(--bg);padding:1px 7px;border-radius:4px;font-size:12.5px;white-space:nowrap}
td .t{color:var(--accent-strong);font-size:12.5px;white-space:nowrap}
.req-yes{color:var(--red);font-size:12px}
.req-no{color:var(--text-3);font-size:12px}
.desc-txt{color:var(--text-2);font-size:13px}

/* ===== 代码块 ===== */
.code-block{background:var(--code-bg);border-radius:10px;margin:8px 0 20px;overflow:hidden;position:relative}
.code-head{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
.code-head span{font-size:12px;color:#8b92a8;font-family:ui-monospace,Consolas,monospace}
.copy-btn{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#cdd2e2;font-size:12px;padding:4px 12px;border-radius:6px;cursor:pointer;transition:all .15s}
.copy-btn:hover{background:rgba(255,255,255,.16);color:#fff}
.copy-btn.ok{background:#12b76a;border-color:#12b76a;color:#fff}
pre{padding:16px 18px;overflow-x:auto;font-size:12.8px;line-height:1.6}
pre code{font-family:ui-monospace,Consolas,"Courier New",monospace;color:var(--code-text)}
pre::-webkit-scrollbar{height:6px}
pre::-webkit-scrollbar-thumb{background:#2a3145;border-radius:3px}

/* ===== 语言标签 ===== */
.lang-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 6px}
.lang-tab{font-size:12.5px;padding:5px 13px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--text-2);cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:6px}
.lang-tab:hover{border-color:var(--accent);color:var(--accent)}
.lang-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}
.lang-tab .ic{width:15px;height:15px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;flex:none}
.lang-tab.active .ic{background:rgba(255,255,255,.25)}
.lang-panel{display:none}
.lang-panel.active{display:block}

/* ===== 响应状态 ===== */
.resp-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.resp-item{background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.resp-item .rh{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid #f0f1f7;font-size:13px;font-weight:600}
.resp-item .rh .s{font-size:11px;font-weight:700;padding:2px 8px;border-radius:4px}
.s-ok{background:#e6f7ef;color:var(--green)}
.s-err{background:#fdecea;color:var(--red)}
.resp-item pre{margin:0}
.resp-item pre code{color:#e8eaf2}
.resp-note{padding:10px 14px;font-size:12px;color:var(--text-3);border-top:1px solid #f0f1f7}

/* ===== 快速开始 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:14px 0 6px}
.step{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.step .n{width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.step h4{font-size:13.5px;margin-bottom:4px}
.step p{font-size:12.5px;color:var(--text-3);line-height:1.6}
.info-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:4px}
.info-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px 18px}
.info-card h4{font-size:14px;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.info-card h4 .tag{font-size:11px;background:var(--accent-weak);color:var(--accent);padding:2px 8px;border-radius:4px}
.info-card p{font-size:13px;color:var(--text-2);margin-bottom:8px}
.info-card .formula{font-family:ui-monospace,Consolas,monospace;background:var(--code-bg);color:#cdd2e2;font-size:12px;padding:10px 12px;border-radius:8px;margin:6px 0;word-break:break-all}
.info-card ul{list-style:none}
.info-card li{font-size:13px;color:var(--text-2);padding:4px 0 4px 18px;position:relative}
.info-card li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.6}

/* ===== 移动端 ===== */
@media(max-width:960px){
  .hamburger{display:flex;align-items:center;justify-content:center}
  nav{transform:translateX(-100%);transition:transform .2s;box-shadow:none}
  nav.open{transform:translateX(0);box-shadow:0 10px 40px rgba(0,0,0,.12)}
  main{margin-left:0;padding:20px 16px 60px}
  .steps{grid-template-columns:1fr 1fr}
  .info-cards{grid-template-columns:1fr}
  .resp-grid{grid-template-columns:1fr}
  header .sub{display:none}
  .top-link{display:none}
  .top-link:first-child{display:inline-flex}
}
@media(max-width:560px){
  .steps{grid-template-columns:1fr}
  table{font-size:12px}
  td{padding:8px 10px}
  th{padding:8px 10px}
}
/* 嵌入官网主体框架：保留站点顶栏，文档内容在下方滚动 */
  body { padding-top: 72px; }
  body::before, body::after { display: none; }
  .wrap { padding-top: 0; }
  nav { top: 72px; }
  .site-header {
    color: #edf2f9;
    background: rgba(4, 7, 13, .95);
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    backdrop-filter: saturate(150%) blur(18px);
    -webkit-backdrop-filter: saturate(150%) blur(18px);
    --text: #edf2f9; --text-2: #a9b5c7; --muted: #7e8ba0;
    --line: rgba(255,255,255,.09);
    --grad: linear-gradient(115deg, #2fe3c3, #45c4f6 50%, #8b8cf7);
    --radius: 18px;
  }
  .site-header .nav {
    position: static; top: auto; bottom: auto; width: auto; height: auto;
    background: none; border: 0; padding: 0; overflow: visible; z-index: auto;
    transform: none; transition: none;
  }
  .site-header .brand-text b { color: #edf2f9; }
  .api-page-label {
    font-size: 11.5px; color: #7e8ba0; border-left: 1px solid rgba(255, 255, 255, .14);
    padding-left: 14px; letter-spacing: .05em; white-space: nowrap;
  }
  @media (max-width: 1120px) { .api-page-label { display: none; } }
  .api-side-toggle { display: none; }
  .api-footer {
    margin-left: 264px; padding: 18px 34px; border-top: 1px solid var(--border);
    background: #fff; color: var(--text-3); font-size: 12px;
    display: flex; justify-content: space-between; align-items: center;
    gap: 14px; flex-wrap: wrap; position: relative; z-index: 1;
  }
  .api-footer a { color: var(--text-2); text-decoration: none; margin-left: 14px; }
  .api-footer a:hover { color: var(--accent); }
  @media (max-width: 960px) {
    .api-side-toggle {
      display: inline-flex; align-items: center; justify-content: center;
      position: fixed; top: 84px; left: 12px; z-index: 60;
      padding: 6px 12px; border-radius: 7px; border: 0;
      background: #0d9488; color: #fff; font-size: 12px; cursor: pointer;
      box-shadow: 0 6px 18px rgba(13, 148, 136, .25);
    }
    main { padding-top: 64px; }
    .api-footer { margin-left: 0; padding: 16px; }
  }