/* ============================================================
   量化喵 · MeowQuant — 设计系统
   风格:开发者文档 / API 控制台(浅底 · 等宽点缀 · 代码块 · 左栏导航感)
   品牌识别点:量化喵 mascot + 终端绿(实测/代码)+ 琥珀短线(highlight)
   ============================================================ */

:root {
  /* 中性 / 信任色 */
  --ink: #16181d;
  --ink-2: #3d424d;
  --ink-3: #6b7280;
  --line: #e6e8ec;
  --line-2: #eff1f4;
  --paper: #ffffff;
  --paper-2: #f7f8fa;
  --paper-3: #f0f2f5;

  /* 主色:靛蓝(链接 / 主按钮 / 品牌) */
  --accent: #5457e8;
  --accent-ink: #3f42c9;
  --accent-soft: #eef0fe;

  /* 信号色:量化绿(代码 / 实测 / 上涨) */
  --signal: #16936a;
  --signal-soft: #e7f6ef;

  /* highlight:猫琥珀(装饰短线 / mascot) */
  --amber: #e8920c;
  --amber-soft: #fdf3e1;

  /* 风险 / 下跌 */
  --danger: #d23f43;
  --danger-soft: #fdeced;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-serif: "Source Serif 4", "Noto Serif SC", Georgia, "Songti SC", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* 阴影 4 档 */
  --sh-xs: 0 1px 2px rgba(22, 24, 29, .05);
  --sh-sm: 0 2px 6px rgba(22, 24, 29, .06);
  --sh-md: 0 8px 24px rgba(22, 24, 29, .08);
  --sh-lg: 0 20px 48px rgba(22, 24, 29, .12);

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --maxw: 1120px;
  --nav-h: 62px;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-ink); }
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
code, kbd, samp { font-family: var(--font-mono); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 64px 0; }
.section-tight { padding: 40px 0; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--amber);
  border-radius: 2px;
}
.lead { font-size: 18px; color: var(--ink-2); }
.muted { color: var(--ink-3); }
.mono { font-family: var(--font-mono); }

/* ---------- 顶部披露条 ---------- */
.disclosure-bar {
  background: var(--ink);
  color: #c8ccd6;
  font-size: 13px;
  padding: 7px 0;
}
.disclosure-bar .wrap { display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; text-align: center; }
.disclosure-bar code { color: var(--signal); background: rgba(255,255,255,.06); padding: 1px 7px; border-radius: 5px; }
.disclosure-bar a { color: #fff; text-decoration: underline; text-underline-offset: 2px; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 18px; height: var(--nav-h); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); font-size: 17px; }
.brand svg, .brand img { width: 30px; height: 30px; }
.brand .romaji { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: .04em; display: block; line-height: 1; margin-top: 2px; }
.brand .brand-txt { display: flex; flex-direction: column; }
.nav-links { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--ink-2); font-size: 14.5px; padding: 8px 11px; border-radius: var(--radius-sm); }
.nav-links a:hover { color: var(--ink); background: var(--paper-2); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent); color: #fff !important;
  padding: 9px 15px !important; border-radius: var(--radius-sm);
  font-weight: 600; box-shadow: var(--sh-sm);
}
.nav-cta:hover { background: var(--accent-ink); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; width: 40px; height: 40px; cursor: pointer; margin-left: auto; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 18px; height: 2px; background: var(--ink); position: relative; margin: 0 auto;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 600; font-size: 15.5px;
  padding: 13px 22px; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  min-height: 46px;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--sh-sm); }
.btn-primary:hover { background: var(--accent-ink); color: #fff; transform: translateY(-1px); box-shadow: var(--sh-md); }
.btn-ghost { background: var(--paper); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); background: var(--paper-2); color: var(--ink); }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--line); background:
  radial-gradient(900px 380px at 88% -8%, var(--accent-soft) 0%, transparent 60%),
  var(--paper); }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); margin: 8px 0 16px; }
.hero h1 .hl { background: linear-gradient(transparent 62%, var(--amber-soft) 62%); padding: 0 3px; }
.hero p.lead { margin: 0 0 26px; max-width: 30em; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.code-chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 14px;
  background: var(--signal-soft); color: var(--signal);
  border: 1px dashed var(--signal); border-radius: 8px; padding: 8px 12px;
}
.code-chip b { font-weight: 700; }
.hero-meta { margin-top: 22px; display: flex; gap: 20px; flex-wrap: wrap; font-size: 13.5px; color: var(--ink-3); }
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); display: inline-block; }

/* ---------- 代码窗(dev-docs 招牌) ---------- */
.codewin { background: #11131a; border-radius: var(--radius); box-shadow: var(--sh-lg); overflow: hidden; border: 1px solid #23262f; }
.codewin-bar { display: flex; align-items: center; gap: 8px; padding: 11px 14px; background: #0b0d12; border-bottom: 1px solid #23262f; }
.codewin-bar .dots { display: flex; gap: 6px; }
.codewin-bar .dots i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.codewin-bar .dots i:nth-child(1){ background:#ff5f57; } .codewin-bar .dots i:nth-child(2){ background:#febc2e; } .codewin-bar .dots i:nth-child(3){ background:#28c840; }
.codewin-bar .fname { font-family: var(--font-mono); font-size: 12.5px; color: #8b909c; margin-left: 6px; }
.codewin-bar .tag { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: #5e93ff; }
.codewin pre { margin: 0; padding: 18px 18px; overflow-x: auto; }
.codewin code { font-family: var(--font-mono); font-size: 13px; line-height: 1.75; color: #d7dbe4; white-space: pre; }
.codewin .c-key { color: #ff7b9c; } .codewin .c-fn { color: #62d0ff; } .codewin .c-str { color: #2bd6a0; }
.codewin .c-num { color: #f5b461; } .codewin .c-com { color: #6b7280; } .codewin .c-var { color: #d7dbe4; }
.codewin-foot { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-top: 1px solid #23262f; background: #0b0d12; font-family: var(--font-mono); font-size: 11.5px; color: #6b7280; }
.codewin-foot .ok { color: var(--signal); }

/* ---------- 路径 / 步骤(与卡片错开的视觉模式) ---------- */
.path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.path-item { padding: 24px 20px; position: relative; border-right: 1px solid var(--line); background: var(--paper); }
.path-item:last-child { border-right: none; }
.path-item .num { counter-increment: step; font-family: var(--font-mono); font-size: 12px; color: var(--accent); }
.path-item .num::before { content: "0" counter(step) " /"; }
.path-item h3 { font-size: 16.5px; margin: 8px 0 6px; }
.path-item p { font-size: 13.5px; color: var(--ink-3); margin: 0; }
.path-item::after { content: "→"; position: absolute; right: -10px; top: 50%; transform: translateY(-50%); color: var(--line); z-index: 2; background: var(--paper); font-size: 14px; }
.path-item:last-child::after { display: none; }

/* ---------- 卡片(docs index 风) ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 20px; transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); border-color: #d4d7de; }
.card .ctag { font-family: var(--font-mono); font-size: 11.5px; color: var(--accent); background: var(--accent-soft); padding: 3px 8px; border-radius: 6px; align-self: flex-start; }
.card h3 { font-size: 18px; margin: 14px 0 8px; }
.card h3 a { color: var(--ink); } .card h3 a:hover { color: var(--accent); }
.card p { font-size: 14.5px; color: var(--ink-2); margin: 0 0 16px; }
.card .cmeta { margin-top: auto; font-size: 12.5px; color: var(--ink-3); font-family: var(--font-mono); display: flex; gap: 12px; }

/* ---------- 工具区(console widget) ---------- */
.tool-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tool {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background:
  linear-gradient(var(--paper), var(--paper)) padding-box,
  linear-gradient(135deg, var(--accent-soft), var(--signal-soft)) border-box;
  border: 1px solid transparent;
}
.tool .ticon { font-family: var(--font-mono); font-size: 13px; color: var(--signal); }
.tool h3 { font-size: 16px; margin: 10px 0 6px; }
.tool p { font-size: 13.5px; color: var(--ink-3); margin: 0 0 14px; }
.tool a { font-weight: 600; font-size: 14px; }

/* ---------- 特性表(GEO 友好 · 数据表) ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 540px; }
table.data th, table.data td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line-2); }
table.data thead th { background: var(--paper-2); font-size: 13px; color: var(--ink-3); font-weight: 600; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data td.mono, table.data .mono { font-family: var(--font-mono); }
table.data .yes { color: var(--signal); font-weight: 600; }
table.data .no { color: var(--ink-3); }

/* ---------- 编辑组实测块 ---------- */
.testlog {
  border-left: 3px solid var(--signal); background: var(--signal-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 16px 20px;
  font-size: 14.5px; color: var(--ink-2);
}
.testlog .tl-head { font-family: var(--font-mono); font-size: 12.5px; color: var(--signal); margin-bottom: 6px; }
.testlog b { color: var(--ink); }

/* ---------- 桥接 CTA(正文内嵌) ---------- */
.inline-cta {
  border: 1px solid var(--amber); border-left-width: 3px; background: var(--amber-soft);
  border-radius: var(--radius-sm); padding: 16px 20px; margin: 26px 0;
  font-size: 15px;
}
.inline-cta a { font-weight: 700; }
.inline-cta code { background: rgba(0,0,0,.05); padding: 1px 6px; border-radius: 5px; color: var(--ink); }

/* ---------- 深色 CTA 块 ---------- */
.cta-dark { background: var(--ink); color: #e8eaed; border-radius: var(--radius-lg); padding: 48px 40px; text-align: center; position: relative; overflow: hidden; }
.cta-dark::after { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 220px at 50% -30%, rgba(84,87,232,.4), transparent 70%); pointer-events: none; }
.cta-dark h2 { color: #fff; font-size: clamp(24px, 4vw, 34px); margin: 0 0 14px; position: relative; }
.cta-dark p { color: #aab0bb; max-width: 36em; margin: 0 auto 26px; position: relative; }
.cta-dark .code-chip { background: rgba(25,169,118,.14); position: relative; }

/* ---------- 风险提示 ---------- */
.risk {
  border: 1px solid var(--danger); border-left-width: 3px; background: var(--danger-soft);
  border-radius: var(--radius-sm); padding: 14px 18px; font-size: 14px; color: var(--ink-2);
}
.risk b { color: var(--danger); }

/* ---------- Footer ---------- */
.footer { background: var(--paper-2); border-top: 1px solid var(--line); padding: 48px 0 30px; font-size: 14px; color: var(--ink-2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); margin: 0 0 14px; font-family: var(--font-mono); font-weight: 600; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer a { color: var(--ink-2); } .footer a:hover { color: var(--accent); }
.footer .brand { margin-bottom: 12px; }
.footer .notice { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--ink-3); line-height: 1.8; }
.footer .notice code { color: var(--signal); }

/* ---------- 文章正文(prose) ---------- */
.article { padding: 40px 0 60px; }
.article-wrap { max-width: 760px; margin: 0 auto; padding: 0 22px; }
.breadcrumb { font-size: 13px; color: var(--ink-3); font-family: var(--font-mono); margin-bottom: 18px; }
.breadcrumb a { color: var(--ink-3); } .breadcrumb a:hover { color: var(--accent); }
.article h1 { font-family: var(--font-serif); font-size: clamp(28px, 4.6vw, 40px); margin: 6px 0 14px; }
.byline { display: flex; align-items: center; gap: 12px; font-size: 13.5px; color: var(--ink-3); margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.byline .mono { font-family: var(--font-mono); }
.prose { font-size: 17px; line-height: 1.82; color: #24262c; }
.prose h2 { font-family: var(--font-serif); font-size: 25px; margin: 44px 0 14px; padding-top: 8px; }
.prose h2 .anchor { color: var(--line); font-family: var(--font-mono); font-size: 16px; margin-right: 8px; }
.prose h3 { font-size: 19px; margin: 30px 0 10px; }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose a { text-decoration: underline; text-underline-offset: 2px; text-decoration-color: rgba(84,87,232,.35); }
.prose img { border-radius: var(--radius); border: 1px solid var(--line); margin: 24px 0; }
.prose figure { margin: 24px 0; } .prose figcaption { font-size: 13px; color: var(--ink-3); text-align: center; margin-top: 8px; }
.prose code { background: var(--paper-3); padding: 2px 7px; border-radius: 5px; font-size: .9em; color: #b13a8e; }
.prose pre { background: #11131a; border-radius: var(--radius); padding: 18px; overflow-x: auto; margin: 22px 0; position: relative; border: 1px solid #23262f; }
.prose pre code { background: none; color: #d7dbe4; padding: 0; font-size: 13.5px; line-height: 1.7; white-space: pre; }
.prose blockquote { border-left: 3px solid var(--amber); margin: 22px 0; padding: 6px 20px; color: var(--ink-2); font-style: italic; background: var(--amber-soft); border-radius: 0 8px 8px 0; }
.toc { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; margin: 0 0 30px; }
.toc-title { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 12px; }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 28px; }
.toc li { margin-bottom: 7px; font-size: 14.5px; }
.copy-btn { position: absolute; top: 10px; right: 10px; background: #23262f; color: #aab0bb; border: 1px solid #333845; border-radius: 6px; font-size: 11.5px; font-family: var(--font-mono); padding: 4px 10px; cursor: pointer; }
.copy-btn:hover { color: #fff; border-color: var(--accent); }
.faq { margin: 30px 0; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 4px 18px; margin-bottom: 10px; background: var(--paper); }
.faq summary { font-weight: 600; cursor: pointer; padding: 12px 0; font-size: 16px; }
.faq details[open] summary { color: var(--accent); }
.faq details > *:not(summary) { padding-bottom: 8px; }

/* SEO Guide 折叠(工具页) */
.seo-guide { margin-top: 36px; border-top: 1px solid var(--line); padding-top: 12px; }
.seo-guide > summary { cursor: pointer; font-weight: 600; color: var(--ink-2); padding: 12px 0; list-style: none; }
.seo-guide > summary::before { content: "▸ "; color: var(--accent); }
.seo-guide[open] > summary::before { content: "▾ "; }

/* ---------- 滚动渐显 ---------- */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 标题区 ---------- */
.section-head { max-width: 38em; margin: 0 0 32px; }
.section-head h2 { font-size: clamp(23px, 3.4vw, 31px); margin: 0 0 10px; }
.section-head p { color: var(--ink-2); font-size: 16.5px; margin: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
  .path { grid-template-columns: 1fr 1fr; }
  .path-item:nth-child(2)::after { display: none; }
  .path-item:nth-child(odd) { border-right: 1px solid var(--line); }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: 48px 0; }
  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--paper); flex-direction: column; padding: 12px 16px; border-bottom: 1px solid var(--line); box-shadow: var(--sh-md); gap: 2px; }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 14px; width: 100%; min-height: 44px; display: flex; align-items: center; }
  .nav-cta { width: 100%; justify-content: center; }
  .nav-toggle { display: block; }
  .cards, .tool-row { grid-template-columns: 1fr; }
  .path { grid-template-columns: 1fr; }
  .path-item { border-right: none !important; border-bottom: 1px solid var(--line); }
  .path-item::after { display: none; }
  .hero { padding: 36px 0 30px; }
  .cta-dark { padding: 36px 22px; }
  .toc ol { columns: 1; }
}
@media (max-width: 380px) {
  .hero h1 { font-size: 27px; }
  .wrap, .article-wrap { padding: 0 16px; }
}

/* ---------- 语种切换器(右上角悬停下拉 · autonym) ---------- */
.langsw { position: relative; display: inline-flex; align-items: center; margin-left: 4px; }
.lsw-btn { font-family: var(--font-sans); font-size: 13.5px; color: var(--ink-2); background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 7px 12px; cursor: pointer; min-height: 38px; line-height: 1; }
.lsw-btn:hover { border-color: var(--ink-3); color: var(--ink); }
.lsw-menu { position: absolute; top: calc(100% + 6px); right: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--sh-md); padding: 6px; display: none; flex-direction: column; min-width: 150px; z-index: 60; }
.langsw:hover .lsw-menu, .langsw:focus-within .lsw-menu { display: flex; }
.lsw-menu a { padding: 9px 12px; border-radius: 7px; color: var(--ink-2); font-size: 14px; white-space: nowrap; }
.lsw-menu a:hover { background: var(--paper-2); color: var(--ink); }
.lsw-menu a.on { color: var(--accent); font-weight: 600; }
@media (max-width: 720px) {
  .langsw { width: 100%; margin: 6px 0 0; }
  .lsw-btn { width: 100%; text-align: left; }
  .lsw-menu { position: static; box-shadow: none; border: none; padding: 4px 0 0; min-width: 0; display: flex; }
}

/* ---------- RTL 安全(he;完整 RTL 样式见各语种 style-rtl.css) ---------- */
[dir="rtl"] .lsw-menu { right: auto; left: 0; }
[dir="rtl"] .nav-links { margin-left: 0; margin-right: auto; }
[dir="rtl"] .eyebrow::before { margin-left: 8px; margin-right: 0; }
[dir="rtl"] .inline-cta, [dir="rtl"] .testlog, [dir="rtl"] .risk, [dir="rtl"] .prose blockquote { border-left: none; border-right-width: 3px; border-right-style: solid; }
[dir="rtl"] .prose ul, [dir="rtl"] .prose ol { padding-left: 0; padding-right: 24px; }
/* 代码/等宽/品牌恒 LTR(避免数字/代码在 RTL 下错乱) */
[dir="rtl"] pre, [dir="rtl"] code, [dir="rtl"] .codewin, [dir="rtl"] .mono, [dir="rtl"] table.data td.mono { direction: ltr; text-align: left; unicode-bidi: isolate; }
.ltr { direction: ltr; unicode-bidi: isolate; display: inline-block; }

/* ============================================================
   v1.1 视觉精修(更精致 / 更高端)
   ============================================================ */
/* 主按钮:渐变 + hover 流光 */
.btn-primary { position: relative; overflow: hidden; background: linear-gradient(135deg, #6a6df2 0%, var(--accent) 55%, #4a4ddb 100%); }
.btn-primary::after { content: ""; position: absolute; top: 0; left: -70%; width: 55%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255,255,255,.30), transparent); transform: skewX(-18deg); transition: left .6s cubic-bezier(.4,0,.2,1); pointer-events: none; }
.btn-primary:hover::after { left: 135%; }
.btn-lg { font-size: 16.5px; padding: 16px 26px; min-height: 56px; border-radius: 11px; font-weight: 700; }

/* Hero:细点阵纹理(开发者/量化质感)+ 更柔的光晕 */
.hero { position: relative; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(rgba(22,24,29,.045) 1px, transparent 1px); background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 72%); mask-image: linear-gradient(to bottom, #000 0%, transparent 72%); }
.hero > .wrap { position: relative; z-index: 1; }

/* 邀请卡:高端高亮报价块(渐变描边 + 大号 20% + 等宽码) */
.invite-card { display: flex; align-items: center; gap: 22px; margin-top: 24px; padding: 18px 22px; border-radius: 16px; flex-wrap: wrap;
  background: linear-gradient(135deg, #fafbff 0%, #f2f3fe 100%);
  border: 1px solid #e4e5f4; box-shadow: 0 14px 38px rgba(84,87,232,.12); }
.invite-code { display: flex; flex-direction: column; gap: 6px; }
.invite-label { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .09em; }
.invite-val { font-family: var(--font-mono); font-size: 21px; font-weight: 700; color: var(--accent-ink); letter-spacing: .08em;
  background: #fff; border: 1.5px dashed var(--accent); border-radius: 9px; padding: 6px 14px; align-self: flex-start; }
.invite-benefit { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; padding-left: 22px; border-left: 1px solid #dfe1f0; }
.benefit-num { font-size: 34px; font-weight: 800; color: var(--signal); line-height: 1.05; letter-spacing: -.02em; }
.benefit-txt { font-size: 13.5px; color: var(--ink-2); font-weight: 600; line-height: 1.3; }
.invite-go { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; background: var(--accent); color: #fff !important;
  padding: 12px 20px; border-radius: 10px; font-weight: 700; font-size: 15.5px; min-height: 48px; box-shadow: var(--sh-sm); transition: transform .12s ease, box-shadow .12s ease, background .12s ease; }
.invite-go:hover { background: var(--accent-ink); transform: translateY(-1px); box-shadow: var(--sh-md); }
.invite-fine { font-size: 12px; color: var(--ink-3); margin: 11px 0 0; line-height: 1.6; }
@media (max-width: 560px) {
  .invite-card { gap: 14px; padding: 16px; }
  .invite-benefit { padding-left: 14px; }
  .invite-go { margin-left: 0; width: 100%; justify-content: center; }
}
[dir="rtl"] .invite-benefit { padding-left: 0; padding-right: 20px; border-left: none; border-right: 1px solid var(--line); }
[dir="rtl"] .invite-go { margin-left: 0; margin-right: auto; }

/* 卡片 hover:细描边提亮(更精致) */
.card:hover { border-color: var(--accent); }
.card:hover .ctag { background: var(--accent); color: #fff; }
/* 特性表:表头更轻、行 hover */
table.data tbody tr { transition: background .12s ease; }
table.data tbody tr:hover { background: var(--paper-2); }