/* ============================================================
   采集小助手 · 官网样式表
   深色 Linear 风格：近黑画布 + 细分割线 + 靛蓝主色
   无外部依赖，离线可用
   ============================================================ */

:root {
  --canvas: #010102;
  --surface-1: #0f1011;
  --surface-2: #141516;
  --surface-3: #18191a;
  --hairline: #23252a;
  --hairline-strong: #34343a;
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --primary-soft: rgba(94, 106, 210, 0.12);
  --ink: #f7f8f8;
  --ink-muted: #d0d6e0;
  --ink-subtle: #8a8f98;
  --ink-tertiary: #62666d;
  --good: #4cb782;
  --warn: #f2b94b;
  --bad: #e5534b;
  --radius: 12px;
  --nav-h: 56px;
  --max: 1180px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  font-synthesis: none;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }

body {
  background: var(--canvas);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
::selection { background: rgba(94, 106, 210, 0.4); color: #fff; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 32px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 80;
  height: var(--nav-h);
  background: rgba(1, 1, 2, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner {
  max-width: var(--max);
  height: 100%;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.2px;
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(145deg, #6d79e8, #4b56bd);
  display: grid;
  place-items: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 4px 14px rgba(94, 106, 210, 0.35);
  flex: none;
}
.brand-mark svg { width: 15px; height: 15px; }
.nav-links { display: flex; gap: 4px; margin-left: 8px; flex: 1; }
.nav-links a {
  color: var(--ink-subtle);
  text-decoration: none;
  font-size: 13.5px;
  padding: 7px 11px;
  border-radius: 7px;
  transition: color .16s ease, background .16s ease;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.045); }
.nav-links a.active { color: var(--ink); background: rgba(255, 255, 255, 0.06); }
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-actions .btn { padding: 7px 13px; font-size: 13.5px; }

.menu-toggle {
  display: none;
  width: 36px; height: 36px;
  border: 1px solid var(--hairline);
  background: var(--surface-1);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.menu-toggle svg { width: 16px; height: 16px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 9px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.16); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--surface-1); color: var(--ink); border-color: var(--hairline); }
.btn-secondary:hover { background: var(--surface-2); border-color: var(--hairline-strong); }
.btn-ghost { background: transparent; color: var(--ink-muted); }
.btn-ghost:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); }
.btn-lg { padding: 12px 22px; font-size: 15px; border-radius: 10px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- 通用版块 ---------- */
.section { padding: 104px 0; position: relative; }
.section-sm { padding: 64px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .4px;
  color: var(--primary-hover);
  background: var(--primary-soft);
  border: 1px solid rgba(94, 106, 210, 0.28);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow .dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.section-title {
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: -1.1px;
  font-weight: 600;
  margin-bottom: 14px;
}
.section-sub { color: var(--ink-subtle); font-size: 16px; line-height: 1.65; }
.hr { height: 1px; background: var(--hairline); border: 0; }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 72px;
  overflow: hidden;
  text-align: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto;
  height: 620px;
  background:
    radial-gradient(46% 55% at 50% 34%, rgba(94,106,210,.28), transparent 70%),
    radial-gradient(30% 40% at 78% 10%, rgba(130,143,255,.12), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(65% 55% at 50% 25%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(65% 55% at 50% 25%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.06;
  letter-spacing: -2.4px;
  font-weight: 600;
  margin: 0 auto 22px;
  max-width: 880px;
}
.hero h1 .accent {
  background: linear-gradient(100deg, #a9b1ff 0%, #7c88ea 48%, #c9cfff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 660px;
  margin: 0 auto 32px;
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--ink-muted);
}
.hero-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.hero-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--ink-tertiary);
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-note span { display: inline-flex; align-items: center; gap: 6px; }
.hero-note svg { width: 13px; height: 13px; color: var(--good); }

/* ---------- 产品界面模拟 ---------- */
.mock-wrap { position: relative; margin: 56px auto 0; max-width: 1040px; padding: 0 8px; }
.mock-glow {
  position: absolute;
  inset: 12% 8% -6%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(94,106,210,.28), transparent 72%);
  filter: blur(20px);
  pointer-events: none;
}
.window {
  position: relative;
  background: linear-gradient(180deg, #131416 0%, #0c0d0e 100%);
  border: 1px solid var(--hairline-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  text-align: left;
}
.window-bar {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
  border-bottom: 1px solid var(--hairline);
  background: #0d0e0f;
}
.window-bar i { width: 9px; height: 9px; border-radius: 50%; background: #2a2c30; display: block; }
.window-bar .title { margin-left: 10px; font-size: 11.5px; color: var(--ink-tertiary); letter-spacing: .2px; }
.window-bar .tag {
  margin-left: auto;
  font-size: 10.5px;
  color: var(--good);
  background: rgba(76, 183, 130, .1);
  border: 1px solid rgba(76, 183, 130, .25);
  padding: 2px 7px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.window-bar .tag i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.mock-body {
  display: grid;
  grid-template-columns: 190px 1fr 176px;
  min-height: 330px;
  font-size: 11px;
}
.mock-body > * { min-width: 0; }
.mock-col { padding: 14px 12px; }
.mock-col + .mock-col { border-left: 1px solid var(--hairline); }
.mock-h {
  font-size: 10px;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  margin-bottom: 10px;
}
.kw {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 6px;
  color: var(--ink-subtle);
  margin-bottom: 3px;
}
.kw b { font-weight: 500; color: var(--ink-muted); font-size: 11px; }
.kw.done { color: var(--ink-tertiary); }
.kw.done b { color: var(--ink-tertiary); text-decoration: line-through; text-decoration-color: rgba(255,255,255,.2); }
.kw.active { background: var(--primary-soft); border: 1px solid rgba(94,106,210,.3); color: var(--ink); }
.kw.active b { color: var(--ink); }
.kw em { font-style: normal; font-size: 9.5px; color: var(--ink-tertiary); }

.item-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border-radius: 7px;
  border: 1px solid transparent;
}
.item-row + .item-row { border-top: 1px solid rgba(255,255,255,.035); border-radius: 0; }
.item-thumb {
  width: 40px; height: 40px;
  border-radius: 6px;
  background: linear-gradient(145deg, #262b3f, #171a21);
  border: 1px solid var(--hairline);
  position: relative;
  overflow: hidden;
}
.item-thumb::after {
  content: "";
  position: absolute;
  inset: 26% 22%;
  border-radius: 3px;
  background: linear-gradient(160deg, rgba(255,255,255,.14), rgba(255,255,255,.03));
}
.item-name { color: var(--ink-muted); font-size: 11.5px; line-height: 1.35; }
.item-meta { color: var(--ink-tertiary); font-size: 10px; margin-top: 3px; }
.item-price { color: #ffb86b; font-variant-numeric: tabular-nums; font-size: 11.5px; }
.stat-line { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px dashed rgba(255,255,255,.06); color: var(--ink-tertiary); }
.stat-line b { color: var(--ink); font-variant-numeric: tabular-nums; }
.mini-bar { height: 5px; border-radius: 3px; background: rgba(255,255,255,.06); margin: 6px 0 12px; overflow: hidden; }
.mini-bar i { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, #5e6ad2, #828fff); }
.mock-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 14px;
  border-top: 1px solid var(--hairline);
  background: #0b0c0d;
  font-size: 10.5px;
  color: var(--ink-tertiary);
}
.mock-foot .pills { display: flex; gap: 6px; flex-wrap: wrap; }
.mock-foot .pills span {
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: var(--surface-2);
}

/* 悬浮小卡 */
.float-card {
  position: absolute;
  right: -18px;
  bottom: -22px;
  width: 196px;
  background: #121316;
  border: 1px solid var(--hairline-strong);
  border-radius: 10px;
  padding: 11px 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,.55);
  text-align: left;
  font-size: 11px;
}
.float-card .top { display: flex; align-items: center; gap: 7px; color: var(--ink-subtle); font-size: 10.5px; }
.float-card .ok { width: 16px; height: 16px; border-radius: 50%; background: rgba(76,183,130,.16); color: var(--good); display: grid; place-items: center; }
.float-card .ok svg { width: 10px; height: 10px; }
.float-card .big { font-size: 19px; font-weight: 600; margin: 6px 0 2px; letter-spacing: -.4px; }
.float-card .bar { height: 4px; border-radius: 2px; background: rgba(255,255,255,.07); overflow: hidden; margin-top: 8px; }
.float-card .bar i { display: block; height: 100%; width: 68%; background: linear-gradient(90deg, #4cb782, #6fd6a2); }

/* ---------- 信任条 / 数据带 ---------- */
.trustbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 26px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-tertiary);
  font-size: 12.5px;
}
.trustbar b { color: var(--ink-muted); font-weight: 500; font-size: 13px; }
.trustbar .sep { width: 1px; height: 18px; background: var(--hairline); }

/* ---------- 功能卡片 ---------- */
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.card:hover { border-color: var(--hairline-strong); background: var(--surface-2); }
.card h3 { font-size: 16px; font-weight: 600; letter-spacing: -.2px; margin-bottom: 7px; }
.card p { font-size: 13.5px; line-height: 1.65; color: var(--ink-subtle); }
.f-icon {
  width: 36px; height: 36px;
  border-radius: 9px;
  background: var(--surface-3);
  border: 1px solid var(--hairline);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  color: var(--primary-hover);
}
.f-icon svg { width: 17px; height: 17px; }
.card .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.tag {
  font-size: 11px;
  color: var(--ink-subtle);
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  border-radius: 999px;
  padding: 2px 8px;
}

/* ---------- 左右分栏特性 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split.rev .split-visual { order: 2; }
.split h2 { font-size: 30px; letter-spacing: -.7px; line-height: 1.2; margin-bottom: 14px; font-weight: 600; }
.split p { color: var(--ink-subtle); font-size: 14.5px; line-height: 1.75; }
.feature-list { list-style: none; margin-top: 20px; display: grid; gap: 10px; }
.feature-list li { display: flex; gap: 10px; font-size: 13.5px; color: var(--ink-muted); line-height: 1.5; }
.feature-list .tick { color: var(--good); flex: none; margin-top: 2px; }
.feature-list svg { width: 14px; height: 14px; }
.panel {
  background: linear-gradient(180deg, #111214, #0b0c0d);
  border: 1px solid var(--hairline);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 18px 50px rgba(0,0,0,.4);
}
.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--ink-subtle);
  background: rgba(255,255,255,.022);
  border: 1px solid rgba(255,255,255,.05);
}
.panel-row + .panel-row { margin-top: 8px; }
.panel-row b { color: var(--ink); font-weight: 500; }
.panel-row .state { font-size: 11px; padding: 2px 8px; border-radius: 999px; }
.state.ok { color: var(--good); background: rgba(76,183,130,.1); }
.state.warn { color: var(--warn); background: rgba(242,185,75,.1); }
.state.off { color: var(--ink-tertiary); background: rgba(255,255,255,.05); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { position: relative; padding: 24px 22px; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--surface-1); }
.step::before {
  counter-increment: s;
  content: "0" counter(s);
  font-size: 12px;
  color: var(--primary-hover);
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.step h3 { font-size: 15px; margin-bottom: 6px; font-weight: 600; }
.step p { font-size: 13px; color: var(--ink-subtle); line-height: 1.6; }
.step code { font-size: 12px; }

/* ---------- 定价 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.price-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: 14px;
  padding: 26px 24px;
  position: relative;
}
.price-card.featured { border-color: rgba(94,106,210,.55); background: linear-gradient(180deg, rgba(94,106,210,.09), rgba(94,106,210,.02)); box-shadow: 0 20px 50px rgba(94,106,210,.12); }
.price-card .plan { font-size: 13px; color: var(--ink-subtle); display: flex; align-items: center; gap: 8px; }
.price-card .badge { font-size: 10.5px; color: var(--primary-hover); background: rgba(94,106,210,.16); border: 1px solid rgba(94,106,210,.3); padding: 2px 7px; border-radius: 999px; }
.price-card .amount { font-size: 40px; font-weight: 600; letter-spacing: -1.6px; margin: 14px 0 2px; line-height: 1; }
.price-card .amount small { font-size: 14px; font-weight: 400; color: var(--ink-tertiary); letter-spacing: 0; }
.price-card .desc { font-size: 12.5px; color: var(--ink-tertiary); min-height: 38px; }
.price-card .btn { margin: 20px 0 22px; }
.price-card ul { list-style: none; display: grid; gap: 9px; font-size: 13px; color: var(--ink-muted); }
.price-card li { display: flex; gap: 9px; }
.price-card li svg { width: 14px; height: 14px; color: var(--good); flex: none; margin-top: 2px; }
.price-note { text-align: center; color: var(--ink-tertiary); font-size: 12.5px; margin-top: 22px; }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 10px; }
details.qa {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 16px 18px;
  transition: border-color .18s;
}
details.qa[open] { border-color: var(--hairline-strong); background: var(--surface-2); }
details.qa summary {
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 500;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary::after { content: "+"; color: var(--ink-tertiary); font-size: 18px; line-height: 1; }
details.qa[open] summary::after { content: "−"; }
details.qa .a { margin-top: 12px; color: var(--ink-subtle); font-size: 13.5px; line-height: 1.75; }
details.qa .a code { background: var(--surface-3); border: 1px solid var(--hairline); border-radius: 5px; padding: 1px 6px; font-size: 12px; }

/* ---------- CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  padding: 56px 32px;
  text-align: center;
  background:
    radial-gradient(60% 90% at 50% -10%, rgba(94,106,210,.28), transparent 70%),
    var(--surface-1);
}
.cta h2 { font-size: 32px; letter-spacing: -.9px; font-weight: 600; margin-bottom: 10px; }
.cta p { color: var(--ink-subtle); margin-bottom: 26px; font-size: 14.5px; }
.cta-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--hairline); padding: 56px 0 32px; margin-top: 40px; }
.footer-inner { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer .desc { color: var(--ink-tertiary); font-size: 13px; line-height: 1.7; margin-top: 12px; max-width: 300px; }
.footer h4 { font-size: 12px; color: var(--ink-subtle); font-weight: 500; letter-spacing: .4px; margin-bottom: 14px; }
.footer a { display: block; color: var(--ink-tertiary); text-decoration: none; font-size: 13px; margin-bottom: 9px; transition: color .16s; }
.footer a:hover { color: var(--ink); }
.footer-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--ink-tertiary);
  font-size: 12px;
}

/* ---------- 文档 / 文章排版 ---------- */
.page-head { padding: 68px 0 34px; border-bottom: 1px solid var(--hairline); }
.page-head h1 { font-size: 40px; letter-spacing: -1.3px; font-weight: 600; line-height: 1.15; margin-bottom: 12px; }
.page-head p { color: var(--ink-subtle); font-size: 15.5px; max-width: 720px; }
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; padding: 48px 0 80px; }
.doc-toc { position: sticky; top: calc(var(--nav-h) + 24px); align-self: start; font-size: 13px; }
.doc-toc h4 { font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: var(--ink-tertiary); margin-bottom: 12px; }
.doc-toc a { display: block; color: var(--ink-subtle); text-decoration: none; padding: 4px 0 4px 12px; border-left: 1px solid var(--hairline); }
.doc-toc a:hover { color: var(--ink); border-left-color: var(--primary); }
.doc-body { min-width: 0; }
.doc-body section { margin-bottom: 46px; scroll-margin-top: 90px; }
.doc-body h2 { font-size: 24px; letter-spacing: -.5px; margin-bottom: 14px; font-weight: 600; }
.doc-body h3 { font-size: 16.5px; margin: 24px 0 10px; font-weight: 600; color: var(--ink); }
.doc-body p, .doc-body li { color: var(--ink-subtle); font-size: 14.5px; line-height: 1.8; }
.doc-body p + p { margin-top: 12px; }
.doc-body ul, .doc-body ol { margin: 10px 0 0 20px; display: grid; gap: 7px; }
.doc-body code {
  background: var(--surface-3);
  border: 1px solid var(--hairline);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 12.5px;
  color: #c9cfff;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
.doc-body pre {
  background: #0b0c0d;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 16px;
  overflow: auto;
  margin-top: 14px;
}
.doc-body pre code { background: none; border: 0; padding: 0; color: #d7dcf7; font-size: 12.5px; line-height: 1.65; }
.callout {
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--primary);
  background: rgba(94,106,210,.06);
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 16px;
  color: var(--ink-muted);
  font-size: 13.5px;
  line-height: 1.7;
}
.callout.warn { border-left-color: var(--warn); background: rgba(242,185,75,.06); }
.callout strong { color: var(--ink); }

/* ---------- 更新日志 ---------- */
.log { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.release { border: 1px solid var(--hairline); border-radius: 12px; background: var(--surface-1); padding: 22px 24px; }
.release-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.release-head .ver { font-size: 17px; font-weight: 600; letter-spacing: -.2px; }
.release-head .date { font-size: 12px; color: var(--ink-tertiary); font-variant-numeric: tabular-nums; }
.release-head .new { font-size: 10.5px; color: var(--primary-hover); border: 1px solid rgba(94,106,210,.35); background: rgba(94,106,210,.12); border-radius: 999px; padding: 1px 8px; }
.release ul { list-style: none; display: grid; gap: 7px; }
.release li { font-size: 13.5px; color: var(--ink-subtle); line-height: 1.6; padding-left: 18px; position: relative; }
.release li::before { content: ""; position: absolute; left: 3px; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--hairline-strong); }
.release li.h { color: var(--ink-muted); font-weight: 500; padding-left: 0; margin-top: 4px; }
.release li.h::before { display: none; }

/* ---------- 下载卡片 ---------- */
.dl-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; align-items: start; }
.dl-box { background: var(--surface-1); border: 1px solid var(--hairline); border-radius: 14px; padding: 26px; }
.dl-box .meta-line { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px dashed rgba(255,255,255,.06); font-size: 13px; color: var(--ink-subtle); }
.dl-box .meta-line b { color: var(--ink-muted); font-weight: 500; }
.dl-box .meta-line:last-of-type { border-bottom: 0; }

/* ---------- 动效 ---------- */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.reveal { animation: riseIn .5s ease both; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .mock-body { grid-template-columns: 170px 1fr; }
  .mock-col:last-child { display: none; }
  .split { gap: 36px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1.4fr 1fr 1fr; }
  .float-card { display: none; }
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-actions .btn-secondary { display: none; }
  .grid-3, .steps, .price-grid, .grid-2, .split, .dl-grid { grid-template-columns: 1fr; }
  .split.rev .split-visual { order: 0; }
  .doc { grid-template-columns: 1fr; gap: 24px; padding: 32px 0 64px; }
  .doc-toc { position: static; display: none; }
  .section { padding: 72px 0; }
  .section-title { font-size: 30px; }
  .page-head h1 { font-size: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0 48px; }
}
@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .nav-inner { padding: 0 20px; gap: 12px; }
  .nav-actions .btn-ghost { display: none; }
  .hero h1 { letter-spacing: -1.2px; }
  .hero-sub { font-size: 15.5px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .mock-body { grid-template-columns: 1fr; min-height: 0; }
  .mock-col:first-child { display: none; }
  .item-name { overflow-wrap: anywhere; }
  .footer-inner { grid-template-columns: 1fr; }
  .cta { padding: 40px 20px; }
  .cta h2 { font-size: 25px; }
}

/* 移动端下拉菜单 */
.mobile-menu {
  position: fixed;
  inset: var(--nav-h) 0 auto 0;
  background: rgba(9, 10, 11, .98);
  border-bottom: 1px solid var(--hairline);
  padding: 12px 20px 20px;
  display: none;
  z-index: 79;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 11px 6px;
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.mobile-menu .btn { margin-top: 14px; }

/* ---------- 工具页 ---------- */
.tool-hero h2 { font-size: 40px; letter-spacing: -1.2px; }
.tool-hero code {
  background: var(--surface-3);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 12px;
}
.download-panel { padding: 22px; }
.download-panel .panel-row { background: rgba(255,255,255,.03); }
.shots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.shot {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
}
.shot img { width: 100%; height: auto; display: block; border-bottom: 1px solid var(--hairline); }
.shot figcaption {
  padding: 12px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-subtle);
}
.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
@media (max-width: 900px) {
  .shots { grid-template-columns: 1fr; }
  .tool-hero h2 { font-size: 32px; }
}