/* ============================================================
   Tokenso — 全局样式
   设计原则：无外部字体/CDN 依赖，首屏渲染不阻塞；深色科技调性
   ============================================================ */

:root {
  --bg:          #06080c;
  --bg-soft:     #0a0e15;
  --card:        #0d1219;
  --card-hover:  #111823;
  --border:      rgba(255, 255, 255, 0.075);
  --border-soft: rgba(255, 255, 255, 0.045);
  --text:        #e9edf5;
  --text-dim:    #a4aec2;
  --muted:       #6f7b91;
  --brand:       #4f8cff;
  --brand-2:     #22d3ee;
  --brand-3:     #8b5cf6;
  --green:       #34d399;
  --amber:       #fbbf24;
  --grad:        linear-gradient(135deg, #4f8cff 0%, #22d3ee 100%);
  --grad-soft:   linear-gradient(135deg, rgba(79,140,255,.14), rgba(34,211,238,.10));
  --radius:      14px;
  --radius-sm:   9px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 背景光晕 —— 提升页面纵深，不占用额外 DOM 性能 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(780px 420px at 18% -8%,  rgba(79, 140, 255, .16), transparent 62%),
    radial-gradient(680px 400px at 82% 4%,   rgba(34, 211, 238, .12), transparent 62%),
    radial-gradient(900px 520px at 50% 108%, rgba(139, 92, 246, .10), transparent 68%);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: rgba(6, 8, 12, .72);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  display: flex; align-items: center; gap: 28px;
  height: 64px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -.02em; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--grad);
  display: grid; place-items: center;
  box-shadow: 0 0 20px rgba(79, 140, 255, .38);
  flex: 0 0 auto;
}
.logo-mark svg { width: 14px; height: 14px; }
.nav-links { display: flex; gap: 4px; margin-left: 6px; }
.nav-links a {
  font-size: 14px; color: var(--text-dim); padding: 7px 12px;
  border-radius: var(--radius-sm); transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, .05); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.lang-switch {
  display: flex; align-items: center; gap: 2px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border);
  border-radius: 8px; padding: 2px;
}
.lang-switch button {
  border: 0; background: transparent; color: var(--muted);
  font-size: 12.5px; font-weight: 600; padding: 4px 9px;
  border-radius: 6px; transition: all .16s; letter-spacing: .02em;
}
.lang-switch button.on { background: rgba(79, 140, 255, .18); color: #9dc2ff; }
.lang-switch button:not(.on):hover { color: var(--text-dim); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 40px; padding: 0 18px; border-radius: 10px;
  font-size: 14px; font-weight: 600; border: 1px solid transparent;
  transition: transform .16s, box-shadow .2s, background .2s, border-color .2s;
  white-space: nowrap;
}
.btn-primary { background: var(--grad); color: #030712; box-shadow: 0 6px 22px rgba(79, 140, 255, .28); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 9px 28px rgba(79, 140, 255, .42); }
.btn-ghost { background: rgba(255, 255, 255, .045); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: rgba(255, 255, 255, .085); border-color: rgba(255, 255, 255, .16); }
.btn-lg { height: 46px; padding: 0 24px; font-size: 15px; border-radius: 11px; }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero { padding: 92px 0 68px; text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: #a7c4ff; font-weight: 600;
  background: rgba(79, 140, 255, .1);
  border: 1px solid rgba(79, 140, 255, .26);
  padding: 5px 13px; border-radius: 100px; margin-bottom: 26px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
h1.hero-title {
  font-size: clamp(34px, 5.2vw, 62px);
  line-height: 1.12; letter-spacing: -.035em; font-weight: 800;
  margin: 0 0 22px;
}
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-sub {
  font-size: clamp(15px, 1.35vw, 18px); color: var(--text-dim);
  max-width: 660px; margin: 0 auto 34px; line-height: 1.7;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 14px; }
.hero-note { font-size: 13px; color: var(--muted); }

/* ---------- 代码块 ---------- */
.code-window {
  margin: 46px auto 0; max-width: 760px;
  background: #080b11;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 255, 255, .02) inset;
  text-align: left;
}
.code-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, .022);
}
.code-bar .dots { display: flex; gap: 6px; }
.code-bar .dots i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.code-bar .dots i:nth-child(1) { background: #ff5f57; }
.code-bar .dots i:nth-child(2) { background: #febc2e; }
.code-bar .dots i:nth-child(3) { background: #28c840; }
.code-bar .filename { font-size: 12px; color: var(--muted); font-family: var(--mono); margin-left: 4px; }
.code-bar .copy {
  margin-left: auto; border: 1px solid var(--border); background: transparent;
  color: var(--text-dim); font-size: 11.5px; padding: 3px 9px; border-radius: 6px;
  transition: all .16s;
}
.code-bar .copy:hover { background: rgba(255, 255, 255, .07); color: var(--text); }
.code-bar .copy.done { color: var(--green); border-color: rgba(52, 211, 153, .4); }

pre {
  margin: 0; padding: 18px 20px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.72;
  color: #c9d4e6; tab-size: 2;
}
pre::-webkit-scrollbar { height: 8px; }
pre::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, .12); border-radius: 4px; }
code { font-family: var(--mono); }
/* 语法着色 */
.tk-key { color: #c084fc; }
.tk-str { color: #7ee787; }
.tk-num { color: #ffa657; }
.tk-com { color: #5b6779; font-style: italic; }
.tk-fn  { color: #79c0ff; }
.tk-var { color: #ffa198; }
.tk-url { color: #22d3ee; }

/* 行内代码 */
.inline-code {
  font-family: var(--mono); font-size: .875em;
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--border-soft);
  padding: 1.5px 6px; border-radius: 5px; color: #9dd0ff;
  white-space: nowrap;
}

/* ---------- 数据条 ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--border-soft);
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  overflow: hidden; margin: 68px 0;
}
.stat { background: var(--bg-soft); padding: 24px 20px; text-align: center; }
.stat-v { font-size: 27px; font-weight: 800; letter-spacing: -.03em; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-l { font-size: 12.5px; color: var(--muted); margin-top: 4px; letter-spacing: .01em; }

/* ---------- 通用 section ---------- */
section { position: relative; z-index: 1; }
.sec { padding: 76px 0; }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.sec-tag {
  font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: #7aa9ff; margin-bottom: 12px;
}
.sec-title { font-size: clamp(25px, 3vw, 36px); font-weight: 800; letter-spacing: -.03em; margin: 0 0 14px; line-height: 1.25; }
.sec-desc { color: var(--text-dim); font-size: 15.5px; margin: 0; line-height: 1.7; }

/* ---------- 特性网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color .2s, background .2s, transform .2s;
}
.card:hover { border-color: rgba(79, 140, 255, .32); background: var(--card-hover); transform: translateY(-2px); }
.feat-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--grad-soft);
  border: 1px solid rgba(79, 140, 255, .2);
  display: grid; place-items: center; margin-bottom: 16px;
}
.feat-icon svg { width: 19px; height: 19px; stroke: #6ea8ff; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; letter-spacing: -.01em; }
.card p { margin: 0; font-size: 14px; color: var(--text-dim); line-height: 1.68; }

/* ---------- 模型表 ---------- */
.table-wrap {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--card);
}
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
  text-align: left; padding: 13px 18px; font-size: 12px; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase; color: var(--muted);
  background: rgba(255, 255, 255, .025);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td { padding: 13px 18px; border-bottom: 1px solid var(--border-soft); color: var(--text-dim); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr { transition: background .16s; }
tbody tr:hover { background: rgba(255, 255, 255, .022); }
td.mono { font-family: var(--mono); font-size: 13px; color: var(--text); }
td .price { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.pill {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px;
  border-radius: 100px; letter-spacing: .02em;
}
.pill-hot { background: rgba(251, 191, 36, .14); color: #fcd34d; border: 1px solid rgba(251, 191, 36, .28); }
.pill-new { background: rgba(52, 211, 153, .13); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, .28); }
.pill-std { background: rgba(255, 255, 255, .06); color: var(--text-dim); border: 1px solid var(--border); }

/* ---------- 定价 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.plan {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 26px; position: relative;
  transition: border-color .2s, transform .2s;
}
.plan:hover { transform: translateY(-3px); }
.plan.featured {
  border-color: rgba(79, 140, 255, .42);
  background: linear-gradient(180deg, rgba(79, 140, 255, .07), var(--card) 42%);
  box-shadow: 0 18px 50px rgba(79, 140, 255, .12);
}
.plan-badge {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--grad); color: #04070d; font-size: 11px; font-weight: 800;
  padding: 3px 12px; border-radius: 100px; letter-spacing: .03em; white-space: nowrap;
}
.plan h3 { font-size: 15px; font-weight: 700; margin: 0 0 6px; color: var(--text); }
.plan .p-sub { font-size: 13px; color: var(--muted); margin: 0 0 20px; min-height: 38px; }
.plan .p-amt { font-size: 36px; font-weight: 800; letter-spacing: -.035em; line-height: 1; }
.plan .p-amt span { font-size: 14px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 22px 0 24px; display: grid; gap: 10px; }
.plan li { font-size: 13.5px; color: var(--text-dim); display: flex; gap: 9px; align-items: flex-start; line-height: 1.55; }
.plan li svg { width: 15px; height: 15px; flex: 0 0 auto; margin-top: 3px; stroke: var(--green); fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.plan .btn { width: 100%; }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; position: relative; }
.step-n {
  width: 28px; height: 28px; border-radius: 8px; background: var(--grad-soft);
  border: 1px solid rgba(79, 140, 255, .25); color: #8bbcff;
  display: grid; place-items: center; font-size: 13px; font-weight: 800; margin-bottom: 14px;
}
.step h4 { font-size: 15px; font-weight: 700; margin: 0 0 7px; }
.step p { margin: 0; font-size: 13.5px; color: var(--text-dim); line-height: 1.65; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-soft); }
.faq-q {
  width: 100%; background: none; border: 0; text-align: left; color: var(--text);
  font-size: 15px; font-weight: 600; padding: 20px 34px 20px 0; position: relative;
  transition: color .16s;
}
.faq-q:hover { color: #9dc2ff; }
.faq-q::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 300; color: var(--muted); transition: transform .22s, color .2s;
}
.faq-item.open .faq-q::after { transform: translateY(-50%) rotate(45deg); color: #6ea8ff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { margin: 0 0 20px; font-size: 14px; color: var(--text-dim); line-height: 1.72; }

/* ---------- CTA 区 ---------- */
.cta-box {
  border-radius: 20px; padding: 54px 32px; text-align: center;
  background: linear-gradient(135deg, rgba(79, 140, 255, .12), rgba(34, 211, 238, .07));
  border: 1px solid rgba(79, 140, 255, .24);
  position: relative; overflow: hidden;
}
.cta-box::after {
  content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 140, 255, .22), transparent 68%);
  top: -190px; right: -110px; pointer-events: none;
}
.cta-box h2 { font-size: clamp(24px, 3vw, 33px); font-weight: 800; letter-spacing: -.03em; margin: 0 0 12px; position: relative; }
.cta-box p { color: var(--text-dim); margin: 0 0 28px; font-size: 15px; position: relative; }
.cta-box .hero-cta { margin-bottom: 0; position: relative; }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--border-soft); padding: 52px 0 34px; margin-top: 40px; position: relative; z-index: 1; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.foot-brand p { font-size: 13.5px; color: var(--muted); margin: 14px 0 0; max-width: 260px; line-height: 1.7; }
.foot-col h5 { font-size: 12px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--text-dim); margin: 0 0 14px; }
.foot-col a { display: block; font-size: 13.5px; color: var(--muted); padding: 5px 0; transition: color .16s; }
.foot-col a:hover { color: var(--text); }
.foot-bottom {
  border-top: 1px solid var(--border-soft); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--muted);
}

/* ============================================================
   文档页
   ============================================================ */
.docs-layout {
  display: grid; grid-template-columns: 232px 1fr; gap: 48px;
  padding: 44px 0 80px; align-items: start;
}
.docs-side { position: sticky; top: 88px; }
.docs-side .grp { margin-bottom: 26px; }
.docs-side h6 {
  font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 9px; padding-left: 11px;
}
.docs-side a {
  display: block; font-size: 13.5px; color: var(--text-dim);
  padding: 6px 11px; border-radius: 7px; border-left: 2px solid transparent;
  transition: all .16s;
}
.docs-side a:hover { color: var(--text); background: rgba(255, 255, 255, .045); }
.docs-side a.active { color: #9dc2ff; background: rgba(79, 140, 255, .1); border-left-color: var(--brand); }

.docs-body { min-width: 0; }
.docs-body h1 { font-size: 32px; font-weight: 800; letter-spacing: -.03em; margin: 0 0 12px; }
.docs-body h2 {
  font-size: 22px; font-weight: 700; letter-spacing: -.02em;
  margin: 52px 0 14px; padding-top: 8px; scroll-margin-top: 88px;
  padding-bottom: 10px; border-bottom: 1px solid var(--border-soft);
}
.docs-body h2:first-of-type { margin-top: 36px; }
.docs-body h3 { font-size: 16px; font-weight: 700; margin: 30px 0 10px; scroll-margin-top: 88px; }
.docs-body p { color: var(--text-dim); font-size: 14.5px; line-height: 1.75; margin: 0 0 14px; }
.docs-body ul, .docs-body ol { color: var(--text-dim); font-size: 14.5px; padding-left: 22px; margin: 0 0 16px; line-height: 1.8; }
.docs-body li { margin-bottom: 5px; }
.docs-body strong { color: var(--text); font-weight: 600; }
.lead { font-size: 16px !important; color: var(--text-dim); line-height: 1.72; }

.docs-body .code-window { margin: 16px 0 22px; max-width: none; }
.docs-body .code-window pre { font-size: 12.5px; }

.note {
  border-left: 2px solid var(--brand); background: rgba(79, 140, 255, .06);
  border-radius: 0 9px 9px 0; padding: 13px 17px; margin: 18px 0;
  font-size: 13.5px; color: var(--text-dim); line-height: 1.7;
}
.note strong { color: #9dc2ff; }
.note.warn { border-left-color: var(--amber); background: rgba(251, 191, 36, .06); }
.note.warn strong { color: #fcd34d; }

/* 参数表 */
.param-table { font-size: 13.5px; }
.param-table td { vertical-align: top; }
.param-table td:first-child { width: 190px; }
.req { color: #ff8a8a; font-size: 11px; margin-left: 4px; }
.opt { color: var(--muted); font-size: 11px; margin-left: 4px; }

.tabs {
  display: flex; gap: 2px; border-bottom: 1px solid var(--border);
  margin: 20px 0 0; overflow-x: auto;
}
.tabs button {
  border: 0; background: none; color: var(--muted); font-size: 13px; font-weight: 600;
  padding: 9px 15px; border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all .16s; white-space: nowrap;
}
.tabs button.on { color: #9dc2ff; border-bottom-color: var(--brand); }
.tabs button:not(.on):hover { color: var(--text-dim); }
.tab-pane { display: none; }
.tab-pane.on { display: block; }

.docs-pager {
  display: flex; justify-content: space-between; gap: 14px;
  margin-top: 60px; padding-top: 24px; border-top: 1px solid var(--border-soft);
}
.docs-pager a {
  border: 1px solid var(--border); border-radius: 10px; padding: 13px 17px;
  font-size: 13.5px; color: var(--text-dim); transition: all .18s; flex: 1;
}
.docs-pager a:hover { border-color: rgba(79, 140, 255, .38); color: var(--text); background: var(--card); }
.docs-pager .lbl { display: block; font-size: 11px; color: var(--muted); margin-bottom: 3px; text-transform: uppercase; letter-spacing: .07em; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 940px) {
  .grid-3, .price-grid, .steps { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .docs-layout { grid-template-columns: 1fr; gap: 0; padding-top: 28px; }
  .docs-side {
    position: static; margin-bottom: 20px;
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 16px; background: var(--card);
    max-height: 230px; overflow-y: auto;
  }
  .nav-links { display: none; }
  .hero { padding: 60px 0 48px; }
  .sec { padding: 56px 0; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .stats { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .plan { padding: 24px 20px; }
  .hero-cta .btn { width: 100%; }
  .table-wrap { overflow-x: auto; }
  table { min-width: 560px; }

  /* 导航：窄屏空间不足，隐藏次要入口，保留核心转化按钮 */
  .nav-inner { gap: 10px; height: 58px; }
  .nav-right { gap: 8px; }
  .nav-right .btn-ghost { display: none; }
  .nav-right .btn-primary { padding: 0 12px; font-size: 12.5px; }
  .lang-switch button { padding: 4px 7px; font-size: 12px; }
  .logo { font-size: 15.5px; gap: 8px; }
  .logo-mark { width: 24px; height: 24px; }

  /* 行内代码允许折行，避免长标识符撑破段落 */
  .inline-code { white-space: normal; word-break: break-word; }

  /* 参数表在窄屏下取消固定列宽 */
  .param-table td:first-child { width: auto; }
  .param-table .req, .param-table .opt { display: block; margin-left: 0; }

  .docs-body h1 { font-size: 25px; }
  .docs-body h2 { font-size: 19px; margin-top: 40px; }
  .cta-box { padding: 40px 20px; }
  .badge { font-size: 11.5px; }
}