/* ================================================================
   愉悦查 · agent.yuyuecha.com · 共享样式
   设计规范参考自内部设计稿
   主色：橙 #F97316 / 辅色：青 #22D3EE / 背景：#05090F
   ================================================================ */

/* ── Design Tokens ── */
:root {
  --orange:        #F97316;
  --orange-soft:   #FB923C;
  --orange-deep:   #EA580C;
  --orange-bg:     rgba(249,115,22,.10);
  --orange-glow:   rgba(249,115,22,.20);

  --cyan:          #22D3EE;
  --cyan-2:        #0EA5E9;
  --cyan-bg:       rgba(34,211,238,.10);
  --cyan-glow:     rgba(34,211,238,.18);

  --bg-0:          #05090F;
  --bg-1:          #080E1A;
  --bg-2:          #0C1524;
  --bg-card:       rgba(255,255,255,.025);

  --line:          rgba(255,255,255,.07);
  --line-2:        rgba(255,255,255,.12);
  --line-3:        rgba(255,255,255,.18);

  --text:          #E4EDF8;
  --text-dim:      #8FA3BE;
  --text-faint:    #546579;

  --font-cn:       "PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,system-ui,sans-serif;
  --font-en:       "Inter","Helvetica Neue",Helvetica,Arial,sans-serif;
  --font-mono:     "JetBrains Mono","SF Mono",Menlo,Consolas,monospace;

  --nav-h:         68px;
  --page-w:        1440px;
  --page-pad:      56px;
  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     14px;
  --radius-xl:     18px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-cn);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; }
img, svg { display: block; max-width: 100%; }

/* ── Page wrapper ── */
.page-wrap { width: 100%; max-width: var(--page-w); margin: 0 auto; position: relative; }

/* ================================================================
   NAV
   ================================================================ */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  padding: 0 var(--page-pad);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: rgba(5,9,15,.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.nav-logo {
  width: 132px; height: 38px; border-radius: 0; flex-shrink: 0;
  background: transparent;
  display: flex; align-items: center; justify-content: center;
  padding: 0;
  box-shadow: none;
  position: relative;
  overflow: hidden;
}
.nav-logo::after {
  display: none;
}
.brand-logo-img { display: block; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 6px 14px rgba(249,115,22,.2)); }
.nav-brand-name { font-size: 14px; font-weight: 600; color: var(--text-dim); letter-spacing: 0; white-space: nowrap; }
.nav-brand-name .sep { color: var(--text-faint); margin: 0 8px; font-weight: 300; }
.nav-brand-name .sub { color: var(--text-dim); font-weight: 400; font-size: 13px; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 14px; color: var(--text-dim);
  position: relative; padding: 6px 0; font-weight: 500;
  transition: color .15s;
}
.nav-links a:hover { color: #fff; }
.nav-links a.active { color: #fff; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 50%; bottom: calc(-1 * (var(--nav-h)/2 - 6px) - 1px);
  transform: translateX(-50%);
  width: 28px; height: 2px;
  background: var(--cyan); border-radius: 1px;
}
.nav-cta { display: flex; align-items: center; gap: 10px; }
.btn-ghost-sm {
  font-size: 13px; color: #fff;
  padding: 7px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--line-3); background: transparent;
  transition: border-color .15s;
}
.btn-ghost-sm:hover { border-color: #fff; }
.btn-primary-sm {
  font-size: 13px; font-weight: 600; color: #fff;
  padding: 8px 18px; border-radius: var(--radius-sm);
  background: var(--orange);
  box-shadow: 0 6px 18px -8px var(--orange-glow);
  transition: background .15s, box-shadow .15s;
}
.btn-primary-sm:hover { background: var(--orange-soft); }

/* ── Large buttons ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  height: 50px; padding: 0 26px; border-radius: 8px;
  font-size: 15px; font-weight: 600; color: #fff;
  background: var(--orange);
  box-shadow: 0 8px 28px -10px var(--orange-glow);
  transition: background .15s, transform .1s;
}
.btn-primary:hover { background: var(--orange-soft); transform: translateY(-1px); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  height: 50px; padding: 0 22px; border-radius: 8px;
  border: 1px solid var(--line-3); background: rgba(255,255,255,.02);
  color: #fff; font-size: 15px; font-weight: 500;
  transition: border-color .15s, background .15s;
}
.btn-ghost:hover { border-color: var(--line-3); background: rgba(255,255,255,.05); }
.btn-cyan {
  display: inline-flex; align-items: center; gap: 10px;
  height: 50px; padding: 0 26px; border-radius: 8px;
  font-size: 15px; font-weight: 600; color: #04111A;
  background: var(--cyan);
  box-shadow: 0 8px 28px -10px var(--cyan-glow);
  transition: background .15s;
}
.btn-cyan:hover { background: #67e8f9; }

/* ================================================================
   SECTION COMMON
   ================================================================ */
.section { padding: 96px var(--page-pad); position: relative; }
.section.alt { background: linear-gradient(180deg, var(--bg-0), var(--bg-1)); }
.sec-label {
  font-family: var(--font-en); font-size: 11px; letter-spacing: .22em;
  color: var(--cyan); font-weight: 600; margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.sec-label::before { content: ""; width: 24px; height: 1px; background: var(--cyan); flex-shrink: 0; }
.sec-h2 {
  font-size: 38px; font-weight: 700; color: #fff;
  letter-spacing: -.01em; line-height: 1.2; text-wrap: balance;
}
.sec-h2 .o { color: var(--orange); }
.sec-h2 .c { color: var(--cyan); }
.sec-sub {
  font-size: 15px; color: var(--text-dim); line-height: 1.75;
  max-width: 560px; margin-top: 14px;
}
.sec-sub b { color: #fff; font-weight: 500; }
.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 48px; gap: 40px;
}
.sec-head-l { flex: 1; }
.sec-head-r {
  max-width: 380px; color: var(--text-dim); font-size: 14px;
  line-height: 1.75; text-align: right;
}
.more-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: #fff; margin-top: 12px; font-size: 13px;
  border-bottom: 1px solid var(--cyan); padding-bottom: 2px;
}

/* ── Eyebrow badge ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px; border-radius: 999px;
  background: rgba(255,255,255,.03); border: 1px solid var(--line-2);
  font-size: 12px; color: var(--text-dim); letter-spacing: .06em;
  margin-bottom: 28px;
}
.eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--orange); box-shadow: 0 0 10px var(--orange);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--orange); }
  50%       { opacity: .6; box-shadow: 0 0 16px var(--orange); }
}
.eyebrow .en {
  font-family: var(--font-en); font-size: 10px; letter-spacing: .18em;
  color: var(--text-faint); padding-left: 10px; margin-left: 6px;
  border-left: 1px solid var(--line-2);
}

/* ── Tags / chips ── */
.tag {
  display: inline-block; font-size: 11px; padding: 4px 10px;
  border-radius: 4px; background: rgba(255,255,255,.04);
  color: var(--text-dim); border: 1px solid var(--line);
}
.tag.cyan { color: var(--cyan); border-color: rgba(34,211,238,.3); background: var(--cyan-bg); }
.tag.orange { color: var(--orange); border-color: rgba(249,115,22,.3); background: var(--orange-bg); }
.tag.live { color: #4ade80; border-color: rgba(74,222,128,.3); background: rgba(74,222,128,.08); }
.tag.soon { color: var(--text-faint); border-color: var(--line); background: rgba(255,255,255,.02); }
.tag.wave2 { color: var(--orange-soft); border-color: rgba(251,146,60,.3); background: rgba(251,146,60,.08); }

/* ── Stats strip ── */
.stats-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
}
.stat { padding: 26px 36px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat .num {
  font-family: var(--font-en); font-size: 36px; font-weight: 800;
  color: var(--orange); letter-spacing: -.02em; line-height: 1;
}
.stat .num.c { color: var(--cyan); }
.stat .lbl { font-size: 13px; color: var(--text-dim); margin-top: 8px; }
.stat .en-lbl {
  font-family: var(--font-en); font-size: 10px; color: var(--text-faint);
  margin-top: 4px; letter-spacing: .08em;
}

/* ── Code block ── */
.code-block {
  border-radius: var(--radius-lg); border: 1px solid var(--line);
  background: #020610; overflow: hidden;
}
.code-block-head {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px; border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.code-block-head .dot { width: 10px; height: 10px; border-radius: 50%; }
.code-block-head .dot.r { background: #ff5f57; }
.code-block-head .dot.y { background: #febc2e; }
.code-block-head .dot.g { background: #28c840; }
.code-block-head .title {
  margin-left: 8px; font-family: var(--font-mono); font-size: 11.5px;
  color: var(--text-faint);
}
.code-block-head .title b { color: var(--cyan); font-weight: 500; }
.code-block-head .copy-btn {
  margin-left: auto; font-size: 11px; color: var(--text-faint);
  border: 1px solid var(--line); border-radius: 4px; padding: 3px 10px;
  background: transparent; cursor: pointer; transition: color .15s, border-color .15s;
}
.code-block-head .copy-btn:hover { color: var(--cyan); border-color: var(--cyan); }
.code-block-head .copy-btn.copied { color: #4ade80; border-color: rgba(74,222,128,.4); }
.code-block pre {
  padding: 20px 24px; font-family: var(--font-mono); font-size: 12.5px;
  line-height: 1.85; color: var(--text-dim); overflow-x: auto;
  white-space: pre; margin: 0;
}
/* Syntax colors */
.ck  { color: #c792ea; }   /* keyword */
.cs  { color: #a5e075; }   /* string */
.cf  { color: var(--cyan); }  /* function */
.cn2 { color: var(--orange-soft); }  /* number/value */
.cc  { color: #4a5f78; }   /* comment */
.cp  { color: #82aaff; }   /* package */
.co  { color: var(--orange); }  /* orange highlight */

/* ── Callout ── */
.callout {
  border-radius: var(--radius-md); padding: 14px 16px;
  font-size: 13px; line-height: 1.65;
  display: flex; gap: 12px; align-items: flex-start;
}
.callout .ico { flex-shrink: 0; font-size: 16px; margin-top: 1px; }
.callout.info { background: rgba(34,211,238,.06); border: 1px solid rgba(34,211,238,.18); color: rgba(34,211,238,.85); }
.callout.warn { background: rgba(249,115,22,.06); border: 1px solid rgba(249,115,22,.18); color: rgba(249,115,22,.85); }
.callout.tip  { background: rgba(74,222,128,.06); border: 1px solid rgba(74,222,128,.18); color: rgba(74,222,128,.85); }
.callout code {
  font-family: var(--font-mono); font-size: 11px;
  background: rgba(255,255,255,.08); padding: 1px 5px; border-radius: 3px;
}

/* ── Table ── */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left; padding: 10px 16px;
  background: rgba(255,255,255,.04); color: var(--text-dim);
  font-weight: 500; font-size: 11px; letter-spacing: .05em;
  border-bottom: 1px solid var(--line-2);
}
.data-table td {
  padding: 10px 16px; border-bottom: 1px solid rgba(255,255,255,.04);
  color: var(--text-dim); vertical-align: top; line-height: 1.6;
}
.data-table td:first-child { color: var(--text); font-weight: 500; }
.data-table td code {
  font-family: var(--font-mono); font-size: 11.5px;
  background: rgba(255,255,255,.07); padding: 2px 6px;
  border-radius: 4px; color: var(--orange-soft);
}
.data-table td .req { color: #f87171; font-size: 10px; font-weight: 600; }
.data-table td .opt { color: var(--text-faint); font-size: 10px; }

/* ── Doc layout (sidebar + content + toc) ── */
.doc-layout { display: flex; min-height: calc(100vh - var(--nav-h)); }
.doc-sidebar {
  width: 220px; flex-shrink: 0;
  background: var(--bg-1); border-right: 1px solid var(--line);
  padding: 28px 0; position: sticky; top: var(--nav-h);
  height: calc(100vh - var(--nav-h)); overflow-y: auto;
}
.sidebar-logo-row {
  display: flex; align-items: center; gap: 10px;
  padding: 0 18px 20px; border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}
.sidebar-logo-box {
  width: 92px; height: 28px; background: transparent; border-radius: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 0; flex-shrink: 0; overflow: hidden;
}
.sidebar-logo-text { font-size: 13px; font-weight: 600; color: #fff; }
.sidebar-logo-text span { display: block; font-size: 10px; font-weight: 400; color: var(--text-faint); }
.sg-group { padding: 0 10px; margin-bottom: 4px; }
.sg-label {
  font-size: 10px; letter-spacing: .12em; color: var(--text-faint);
  padding: 10px 8px 4px; font-family: var(--font-en);
}
.sg-link {
  display: block; padding: 7px 10px; border-radius: 6px;
  font-size: 12.5px; color: var(--text-dim); cursor: pointer;
  transition: background .12s, color .12s; line-height: 1.4;
}
.sg-link:hover { background: rgba(255,255,255,.05); color: var(--text); }
.sg-link.active { background: rgba(249,115,22,.1); color: var(--orange); font-weight: 500; }
.sg-link.sub { padding-left: 22px; font-size: 12px; }
.sg-link.sub.active { background: rgba(34,211,238,.08); color: var(--cyan); }
.doc-main {
  flex: 1; padding: 40px 52px; max-width: 860px;
  min-width: 0;
}
.doc-toc {
  width: 180px; flex-shrink: 0;
  padding: 40px 0 40px 24px;
  border-left: 1px solid var(--line);
  position: sticky; top: var(--nav-h);
  height: calc(100vh - var(--nav-h)); overflow-y: auto;
}
.toc-title {
  font-size: 10px; letter-spacing: .12em; color: var(--text-faint);
  margin-bottom: 12px; font-family: var(--font-en);
}
.toc-link {
  display: block; font-size: 12px; color: var(--text-dim);
  padding: 4px 0; cursor: pointer; line-height: 1.5;
  transition: color .12s; border-left: 2px solid transparent;
  padding-left: 10px; margin-left: -10px;
}
.toc-link:hover { color: var(--text); }
.toc-link.active { color: var(--orange); border-left-color: var(--orange); }
.toc-link.sub { padding-left: 20px; font-size: 11px; }
.breadcrumb {
  font-size: 12px; color: var(--text-faint);
  margin-bottom: 24px; display: flex; align-items: center; gap: 8px;
}
.breadcrumb a { transition: color .12s; }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { color: var(--line-3); }
.doc-h1 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 10px; line-height: 1.2; }
.doc-lead {
  font-size: 15px; color: var(--text-dim); line-height: 1.8;
  margin-bottom: 32px; padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.doc-lead b { color: var(--text); font-weight: 500; }
.doc-h2 {
  font-size: 20px; font-weight: 700; color: #fff;
  margin: 36px 0 14px;
  display: flex; align-items: center; gap: 8px;
}
.doc-h2::before { content: "#"; color: rgba(249,115,22,.5); font-size: 16px; }
.doc-h3 { font-size: 14px; font-weight: 600; color: var(--text); margin: 20px 0 10px; }
.doc-p { font-size: 13.5px; color: var(--text-dim); line-height: 1.8; margin-bottom: 14px; }
.doc-p code {
  font-family: var(--font-mono); font-size: 12px;
  background: rgba(255,255,255,.07); padding: 2px 6px; border-radius: 4px;
  color: var(--orange-soft);
}
.doc-nav-btns {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line);
}
.doc-nav-btn {
  padding: 14px 20px; border: 1px solid var(--line-2); border-radius: var(--radius-md);
  background: rgba(255,255,255,.02); cursor: pointer; transition: border-color .15s;
  text-align: left; flex: 1;
}
.doc-nav-btn:hover { border-color: var(--line-3); }
.doc-nav-btn .dir { font-size: 11px; color: var(--text-faint); margin-bottom: 4px; }
.doc-nav-btn .name { font-size: 14px; font-weight: 600; color: #fff; }

/* ── 3-step cards ── */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-card {
  position: relative;
  padding: 32px 28px; border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border: 1px solid var(--line); min-height: 200px; overflow: hidden;
}
.step-card .step-n {
  font-family: var(--font-en); font-size: 72px; font-weight: 800;
  color: transparent; -webkit-text-stroke: 1px var(--line-3);
  line-height: 1; letter-spacing: -.04em;
  position: absolute; right: 20px; top: 20px; pointer-events: none;
}
.step-card .step-label {
  font-family: var(--font-en); font-size: 11px; letter-spacing: .2em;
  color: var(--orange); font-weight: 600; margin-bottom: 16px;
}
.step-card h4 { font-size: 20px; color: #fff; font-weight: 600; margin-bottom: 10px; }
.step-card p { font-size: 13.5px; color: var(--text-dim); line-height: 1.7; }
.step-card .step-cmd {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 14px;
  padding: 6px 12px; border-radius: 6px;
  background: rgba(0,0,0,.4); border: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim);
}
.step-card .step-cmd .m { color: var(--cyan); margin-right: 4px; }

/* ── Platform cards ── */
.platform-card {
  background: rgba(255,255,255,.03); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 22px 24px;
  display: flex; gap: 18px; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.platform-card:hover { border-color: var(--line-2); background: rgba(255,255,255,.04); }
.platform-card.live { border-color: rgba(34,211,238,.22); background: rgba(34,211,238,.02); }
.platform-card.wave2 { border-color: rgba(249,115,22,.18); }
.platform-card .p-icon { font-size: 38px; flex-shrink: 0; margin-top: 2px; }
.platform-card .p-body { flex: 1; min-width: 0; }
.platform-card .p-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.platform-card .p-name { font-size: 16px; font-weight: 700; color: #fff; }
.platform-card .p-desc { font-size: 13px; color: var(--text-dim); line-height: 1.65; margin-bottom: 12px; }
.platform-card .p-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.platform-card .p-foot {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--text-faint);
}
.platform-card .p-cta { color: var(--cyan); font-weight: 500; }
.platform-card .p-cta.muted { color: var(--text-faint); }

/* ── Product cards ── */
.product-card {
  background: rgba(255,255,255,.03); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: border-color .15s, transform .15s;
  cursor: pointer;
}
.product-card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.product-card .pc-top { padding: 24px 24px 18px; border-bottom: 1px solid var(--line); }
.product-card .pc-icon { font-size: 36px; margin-bottom: 14px; }
.product-card .pc-badge { margin-bottom: 10px; }
.product-card .pc-name { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.product-card .pc-desc { font-size: 13px; color: var(--text-dim); line-height: 1.65; }
.product-card .pc-panels { display: flex; flex-wrap: wrap; gap: 5px; padding: 14px 24px; border-bottom: 1px solid var(--line); }
.product-card .pc-bottom { padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.product-card .pc-price { font-family: var(--font-en); font-size: 24px; font-weight: 800; color: var(--orange); }
.product-card .pc-route {
  font-family: var(--font-mono); font-size: 11px;
  background: var(--cyan-bg); color: var(--cyan);
  border: 1px solid rgba(34,211,238,.25); padding: 3px 8px; border-radius: 4px;
}
.product-card .pc-cta { width: 100%; padding: 10px 24px 16px; }
.product-card .pc-cta-btn {
  width: 100%; padding: 10px; border-radius: 8px;
  border: 1px solid var(--line-2); background: transparent;
  color: var(--text-dim); font-size: 13px;
  transition: border-color .15s, color .15s;
}
.product-card .pc-cta-btn:hover { border-color: var(--orange); color: var(--orange); }

/* ── CTA section ── */
.cta-section {
  margin: 0 var(--page-pad) 80px;
  padding: 72px 64px; border-radius: var(--radius-xl);
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 360px at 15% 50%, var(--orange-glow), transparent 55%),
    radial-gradient(800px 300px at 90% 55%, var(--cyan-glow), transparent 55%),
    linear-gradient(180deg, #0B1626, #07111D);
  border: 1px solid var(--line-2);
}
.cta-section-inner {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
}
.cta-section h2 {
  font-size: 42px; font-weight: 700; color: #fff;
  letter-spacing: -.01em; line-height: 1.2; margin-bottom: 14px;
}
.cta-section h2 .o { color: var(--orange); }
.cta-section h2 .c { color: var(--cyan); }
.cta-section p { font-size: 15px; color: var(--text-dim); line-height: 1.75; }
.cta-section-r { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; flex-shrink: 0; }
.cta-meta { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); }

/* ── Footer ── */
.site-footer {
  padding: 32px var(--page-pad);
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
}
.footer-l { display: flex; align-items: center; gap: 14px; }
.footer-logo-sm {
  width: 94px; height: 28px; background: transparent; border-radius: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 0; flex-shrink: 0; overflow: hidden;
}
.footer-text { font-size: 12px; color: var(--text-faint); }
.footer-r { display: flex; gap: 24px; font-size: 12px; color: var(--text-faint); font-family: var(--font-en); letter-spacing: .04em; }
.footer-r a { transition: color .12s; }
.footer-r a:hover { color: #fff; }

/* ── Hero background ── */
.hero-section {
  position: relative; padding: 100px var(--page-pad) 72px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-bg .net { position: absolute; inset: 0; opacity: .5; }
.hero-bg .glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(800px 500px at 75% 25%, var(--cyan-glow), transparent 60%),
    radial-gradient(900px 500px at 5% 80%, var(--orange-glow), transparent 60%);
}
.hero-bg .vignette {
  position: absolute; inset: auto 0 0 0; height: 200px;
  background: linear-gradient(0deg, var(--bg-0), transparent);
}
.hero-inner { position: relative; z-index: 2; }

/* ── Scale strip (数据规模) ── */
.scale-strip {
  margin: 0 var(--page-pad);
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.01));
  border: 1px solid var(--line-2); border-radius: var(--radius-lg);
  overflow: hidden;
}
.scale-item { padding: 24px 28px; border-right: 1px solid var(--line); }
.scale-item:last-child { border-right: none; }
.scale-item .si-top { display: flex; align-items: baseline; gap: 6px; font-family: var(--font-en); }
.scale-item .si-num { font-size: 32px; font-weight: 800; color: #fff; letter-spacing: -.02em; line-height: 1; }
.scale-item .si-unit { font-size: 14px; color: var(--cyan); font-weight: 700; }
.scale-item .si-lbl { font-size: 13px; color: var(--text-dim); margin-top: 8px; }
.scale-item .si-en { font-family: var(--font-en); font-size: 10px; color: var(--text-faint); margin-top: 3px; letter-spacing: .08em; }

/* ── Peek chips (Hero 底部) ── */
.hero-peek {
  display: flex; align-items: center; gap: 24px;
  padding-top: 32px; margin-top: 48px;
  border-top: 1px solid var(--line);
}
.peek-label {
  font-family: var(--font-en); font-size: 11px; color: var(--text-faint);
  letter-spacing: .18em; white-space: nowrap; flex-shrink: 0;
}
.peek-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.peek-chip {
  font-size: 12px; color: var(--text-dim); padding: 5px 12px;
  border-radius: 999px; border: 1px solid var(--line-2);
  background: rgba(255,255,255,.02);
}
.peek-chip.on { color: var(--orange); border-color: rgba(249,115,22,.4); background: var(--orange-bg); }
.peek-chip.oc { color: var(--cyan); border-color: rgba(34,211,238,.4); background: var(--cyan-bg); }

/* ── Filter bar ── */
.filter-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 16px var(--page-pad); border-bottom: 1px solid var(--line);
  background: rgba(0,0,0,.15);
}
.filter-bar span { font-size: 13px; color: var(--text-faint); }
.filter-btn {
  font-size: 12.5px; padding: 6px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--line-2); background: transparent;
  color: var(--text-dim); transition: all .15s; cursor: pointer;
}
.filter-btn.active { background: var(--cyan-bg); border-color: rgba(34,211,238,.35); color: var(--cyan); }

/* ── MCP tool row ── */
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tool-row {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 16px; border-radius: var(--radius-md);
  background: rgba(255,255,255,.025); border: 1px solid var(--line);
}
.tool-row.pub { border-color: rgba(34,211,238,.18); }
.tool-row.ctrl { border-color: rgba(249,115,22,.18); }
.tool-row .t-badge {
  font-size: 9px; font-weight: 700; letter-spacing: .08em;
  padding: 2px 7px; border-radius: 3px; white-space: nowrap; margin-top: 2px; flex-shrink: 0;
}
.tool-row.pub .t-badge { background: var(--cyan-bg); color: var(--cyan); border: 1px solid rgba(34,211,238,.3); }
.tool-row.ctrl .t-badge { background: var(--orange-bg); color: var(--orange); border: 1px solid rgba(249,115,22,.3); }
.tool-row .t-name { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: #fff; }
.tool-row .t-desc { font-size: 11.5px; color: var(--text-dim); margin-top: 2px; line-height: 1.5; }

/* ── Compare table ── */
.compare-wrap {
  border-radius: var(--radius-lg); border: 1px solid var(--line);
  background: rgba(255,255,255,.02); overflow: hidden;
}
.compare-head {
  padding: 18px 24px; border-bottom: 1px solid var(--line);
  font-size: 15px; font-weight: 600; color: #fff;
}
.compare-head span { font-size: 13px; color: var(--text-faint); font-weight: 400; margin-left: 10px; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.compare-table th {
  text-align: left; padding: 10px 20px;
  background: rgba(255,255,255,.04); color: var(--text-faint);
  font-weight: 500; font-size: 11px; letter-spacing: .05em;
  border-bottom: 1px solid var(--line);
}
.compare-table td {
  padding: 12px 20px; border-bottom: 1px solid rgba(255,255,255,.035);
  color: var(--text-dim);
}
.compare-table td:first-child { font-weight: 600; color: var(--text); }
.compare-table td .price { color: var(--orange); font-weight: 700; font-size: 15px; font-family: var(--font-en); }
.compare-table td .route { font-family: var(--font-mono); font-size: 11px; color: var(--cyan); background: var(--cyan-bg); border: 1px solid rgba(34,211,238,.2); padding: 2px 6px; border-radius: 3px; }
.ck { color: #4ade80; }
.cx { color: rgba(255,255,255,.18); }

/* ── Responsive ── */
@media (max-width: 1100px) {
  :root { --page-pad: 32px; }
  .sec-h2 { font-size: 30px; }
  .hero-section h1 { font-size: 44px; }
}
@media (max-width: 900px) {
  .doc-toc { display: none; }
}
@media (max-width: 768px) {
  :root { --page-pad: 20px; }
  .doc-sidebar { display: none; }
  .nav-links { display: none; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .cta-section-inner { flex-direction: column; }
  .cta-section-r { align-items: flex-start; }
}