/* 百灵中枢官网 · 共享设计系统（零构建，hub 静态托管 /site/site.css）
   设计语言取自 claude.ai design 稿：深色 control-plane 气质 + 绿色强调；颜色/字体/动效在此统一定义，
   各页只写结构，样式走这里的 class，改一处全站生效。*/

:root {
  --bg: #0a0b0d;
  --surface: #0e1013;
  --surface-2: #0f1114;
  --surface-3: #111418;
  --ink: #e6e8eb;
  --ink-bright: #f3f5f7;
  --ink-soft: #c9ced4;
  --muted: #9aa0a8;
  --faint: #6b7178;
  --green: #3fb950;
  --green-bright: #56d364;
  --green-deep: #238636;
  --on-green: #06120a;
  --line: rgba(255, 255, 255, .06);
  --line-2: rgba(255, 255, 255, .1);
  --warn: #febc2e;
  --danger: #ff6b6b;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Noto Sans SC', 'HarmonyOS Sans SC', 'PingFang SC', system-ui, -apple-system, sans-serif;
  --wrap: 1320px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}
::selection { background: var(--green); color: #08130b; }
a { color: inherit; }
img { max-width: 100%; }

/* 整页深色 + 顶部绿光晕背景 */
.page { min-height: 100vh; background: radial-gradient(1100px 520px at 70% -8%, rgba(63, 185, 80, .07), transparent 60%), var(--bg); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }

/* ---- keyframes（首页/工具治理等动效共用）---- */
@keyframes flow { to { stroke-dashoffset: -28; } }
@keyframes pulse { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes gate { 0%, 12% { border-color: var(--line-2); color: var(--faint); box-shadow: none; } 24%, 100% { border-color: var(--green); color: var(--green-bright); box-shadow: 0 0 0 1px var(--green), 0 0 20px -6px var(--green); } }
@keyframes appr { 0%, 55% { opacity: 0; transform: translateY(6px); } 70%, 100% { opacity: 1; transform: translateY(0); } }
@keyframes tokn { 0% { left: 2%; opacity: 0; } 8% { opacity: 1; } 92% { opacity: 1; } 100% { left: 98%; opacity: 0; } }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; } }

/* ---- 顶部导航 ---- */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: rgba(10, 11, 13, .72); border-bottom: 1px solid var(--line); }
.nav__inner { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; height: 64px; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__logo { width: 26px; height: 26px; border-radius: 7px; background: linear-gradient(135deg, var(--green), var(--green-deep)); display: grid; place-items: center; font: 700 14px/1 var(--mono); color: var(--on-green); }
.brand__name { font-weight: 700; font-size: 16px; color: var(--ink); letter-spacing: .2px; }
.brand__badge { font: 500 10px/1 var(--mono); color: var(--faint); border: 1px solid var(--line-2); padding: 3px 6px; border-radius: 5px; letter-spacing: 1px; }
.nav__links { display: flex; align-items: center; gap: 26px; margin-left: 12px; }
.nav__links a { font-size: 14px; color: var(--muted); text-decoration: none; transition: color .15s; }
.nav__links a:hover { color: var(--ink); }
.nav__links a.is-active { color: var(--green-bright); font-weight: 600; }
.nav__cta { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.nav__ghost-link { display: inline-flex; align-items: center; gap: 8px; font: 500 13px/1 var(--mono); color: var(--ink-soft); text-decoration: none; border: 1px solid var(--line-2); padding: 8px 12px; border-radius: 8px; }

/* ---- 按钮 ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; border-radius: 9px; font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: .15s; white-space: nowrap; }
.btn--primary { color: var(--on-green); background: var(--green); }
.btn--primary:hover { background: var(--green-bright); }
.btn--ghost { color: var(--ink); background: transparent; border-color: rgba(255, 255, 255, .18); font-weight: 500; }
.btn--ghost:hover { border-color: rgba(255, 255, 255, .35); }
.btn--sm { font-size: 13px; padding: 9px 14px; }
.btn--md { font-size: 14px; padding: 12px 18px; }
.btn--lg { font-size: 15px; padding: 14px 22px; border-radius: 10px; }

/* ---- 排版小件 ---- */
.label { font: 500 12px/1 var(--mono); color: var(--green-bright); letter-spacing: 1px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font: 500 12px/1 var(--mono); color: var(--green-bright); background: rgba(63, 185, 80, .09); border: 1px solid rgba(63, 185, 80, .22); padding: 7px 12px; border-radius: 20px; letter-spacing: .4px; }
.eyebrow .dot-live { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 1.8s infinite; }
.section { max-width: var(--wrap); margin: 0 auto; padding: 96px 32px 0; }
.section--center { text-align: center; }
.section__head { text-align: center; max-width: 720px; margin: 0 auto; }
h1, h2, h3 { color: var(--ink-bright); letter-spacing: -.5px; margin: 0; text-wrap: balance; }
h1 { font-weight: 900; }
.lead { color: var(--muted); }
.quote { color: var(--ink-soft); border-left: 2px solid var(--green); padding-left: 14px; }

/* ---- 卡片 ---- */
.card { border: 1px solid var(--line); background: var(--surface-2); border-radius: 14px; padding: 26px 24px; }
.card--accent { border-color: rgba(63, 185, 80, .28); background: linear-gradient(180deg, rgba(63, 185, 80, .06), var(--surface)); }
.card__no { font: 700 14px/1 var(--mono); color: var(--faint); }

/* ---- 代码窗 ---- */
.code-win { border: 1px solid var(--line-2); background: #0d0f12; border-radius: 14px; overflow: hidden; }
.code-win__bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: var(--surface-3); border-bottom: 1px solid var(--line); }
.code-win__dot { width: 11px; height: 11px; border-radius: 50%; }
.code-win__name { margin-left: 8px; font: 500 12px/1 var(--mono); color: var(--faint); }
.code-win__body { padding: 20px; font: 400 13px/1.9 var(--mono); color: var(--ink-soft); overflow-x: auto; }
.code-win__body .c { color: #8b949e; }   /* 注释 */
.code-win__body .s { color: #a5d6ff; }   /* 字符串 */
.code-win__body .k { color: #ff7b72; }   /* 关键字 */
.code-win__body .f { color: #d2a8ff; }   /* 函数/模型 */
.code-win__body .p { color: var(--green); } /* 提示符 */
.code-win__body .ok { color: var(--green-bright); }

/* ---- 代码页签（radio + CSS，零 JS）---- */
.tabs__radio { position: absolute; opacity: 0; pointer-events: none; }
.tabs__bar { display: flex; gap: 8px; padding: 12px 14px; background: var(--surface-3); border-bottom: 1px solid var(--line); }
.tabs__tab { padding: 8px 14px; font: 500 13px/1 var(--mono); border-radius: 7px; cursor: pointer; color: var(--muted); background: transparent; border: 1px solid var(--line-2); transition: .15s; }
.tabs__panel { display: none; padding: 20px; font: 400 13px/1.85 var(--mono); color: var(--ink-soft); overflow-x: auto; min-height: 200px; }

/* ---- CTA 强调带 ---- */
.cta-band { border: 1px solid rgba(63, 185, 80, .22); background: radial-gradient(800px 300px at 50% 0%, rgba(63, 185, 80, .1), transparent 70%), #0c0e11; border-radius: 20px; padding: 60px 32px; text-align: center; }

/* ---- 兼容性跑马灯 ---- */
.compat { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .015); overflow: hidden; }
.compat__inner { max-width: var(--wrap); margin: 0 auto; padding: 18px 32px; display: flex; align-items: center; gap: 14px; }
.compat__mask { flex: 1; min-width: 0; overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.compat__track { display: flex; gap: 40px; width: max-content; animation: marquee 26s linear infinite; font: 500 13px/1 var(--mono); color: var(--muted); white-space: nowrap; }

/* ---- 页脚 ---- */
.footer { border-top: 1px solid var(--line); margin-top: 96px; }
.footer__cols { max-width: var(--wrap); margin: 0 auto; padding: 56px 32px 40px; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; }
.footer__col h4 { font: 600 12px/1 var(--mono); color: var(--muted); letter-spacing: .5px; margin-bottom: 16px; }
.footer__col a { display: block; font-size: 13.5px; color: var(--muted); text-decoration: none; margin-bottom: 11px; }
.footer__col a:hover { color: var(--ink); }
.footer__bottom { border-top: 1px solid var(--line); }
.footer__bottom-inner { max-width: var(--wrap); margin: 0 auto; padding: 18px 32px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font: 400 12.5px/1.6 var(--mono); color: var(--faint); }

/* ---- 开发者文档 ---- */
.docs-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px; align-items: start; }
.docs-toc { position: sticky; top: 88px; border: 1px solid var(--line); background: rgba(15,17,20,.72); border-radius: 14px; padding: 16px; }
.docs-toc a { display: block; padding: 9px 10px; border-radius: 8px; color: var(--muted); text-decoration: none; font-size: 13.5px; }
.docs-toc a:hover, .docs-toc a.is-active { color: var(--ink); background: rgba(255,255,255,.04); }
.docs-toc a.is-active { color: var(--green-bright); font-weight: 600; }
.docs-toc .toc-title { margin: 0 0 8px; padding: 0 10px; font: 700 12px/1 var(--mono); color: var(--green-bright); letter-spacing: .6px; }
.docs-main { min-width: 0; }
.doc-section { scroll-margin-top: 84px; padding-top: 76px; }
.doc-section:first-child { padding-top: 0; }
.doc-section h2 { font-size: 32px; line-height: 1.22; }
.doc-section h3 { margin-top: 30px; font-size: 20px; }
.doc-section p { color: var(--muted); font-size: 15px; line-height: 1.8; }
.doc-lead { max-width: 760px; }
.doc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.doc-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 20px; }
.doc-card { border: 1px solid var(--line); background: var(--surface-2); border-radius: 12px; padding: 20px 18px; }
.doc-card h3, .doc-card h4 { margin: 0 0 8px; color: var(--ink); font-size: 16px; }
.doc-card p { margin: 0; font-size: 13.5px; line-height: 1.7; }
.doc-card a { color: var(--green-bright); text-decoration: none; }
.api-block { border: 1px solid var(--line-2); background: #0d0f12; border-radius: 12px; overflow: hidden; margin-top: 16px; }
.api-head { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-bottom: 1px solid var(--line); background: var(--surface-3); }
.method { flex: none; min-width: 58px; text-align: center; border-radius: 6px; padding: 5px 8px; font: 700 11px/1 var(--mono); color: var(--on-green); background: var(--green); }
.method--get { background: #58a6ff; color: #061323; }
.method--delete { background: var(--danger); color: #1b0505; }
.api-path { font: 600 13px/1.4 var(--mono); color: var(--ink-soft); overflow-wrap: anywhere; }
.api-body { padding: 18px; }
.api-body pre, .code-win__body pre { margin: 0; white-space: pre; overflow-x: auto; font: 400 13px/1.75 var(--mono); color: var(--ink-soft); }
.note { border-left: 2px solid var(--green); background: rgba(63,185,80,.06); padding: 14px 16px; border-radius: 0 10px 10px 0; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.warn-note { border-left-color: var(--warn); background: rgba(254,188,46,.06); }
.step-list { display: grid; gap: 12px; margin-top: 20px; }
.step { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; border: 1px solid var(--line); background: var(--surface-2); border-radius: 12px; padding: 16px; }
.step b { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: rgba(63,185,80,.12); color: var(--green-bright); font: 700 12px/1 var(--mono); }
.step div { color: var(--muted); font-size: 14px; line-height: 1.75; }
.step strong { color: var(--ink-soft); }
.field-table { width: 100%; border-collapse: collapse; margin-top: 14px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; display: table; }
.field-table th, .field-table td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 13.5px; line-height: 1.6; }
.field-table th { color: var(--faint); background: var(--surface-3); font: 700 12px/1.4 var(--mono); }
.field-table td { color: var(--muted); }
.field-table tr:last-child td { border-bottom: none; }
.field-table code, .doc-section code { font-family: var(--mono); color: var(--ink-soft); font-size: .92em; }

/* ---- 响应式：窄屏收起多列 ---- */
@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__inner { gap: 12px; padding: 0 20px; }
  .nav__ghost-link { display: none; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .hero-grid, .pillar-grid, .grid-3, .grid-4, .two-col, .sign-col, .tier-grid, .why-grid, .bundle-grid, .layer, .core-grid { grid-template-columns: 1fr !important; }
  .docs-shell { grid-template-columns: 1fr; }
  .docs-toc { position: static; }
  .doc-grid, .doc-grid-2 { grid-template-columns: 1fr; }
  .section { padding-top: 64px; }
  h1 { font-size: 38px !important; }
}

@media (max-width: 560px) {
  .wrap, .section, .nav__inner, .footer__cols, .footer__bottom-inner { padding-left: 20px; padding-right: 20px; }
  .brand__badge { display: none; }
  .nav__cta { gap: 8px; }
  .nav__cta .btn--ghost { display: none; }
  .btn--sm { padding: 8px 11px; }
  .btn--lg { width: 100%; justify-content: center; }
  .footer__cols { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 20px; }
  .field-table { display: block; overflow-x: auto; }
}