/* 与工作台同一套 7 个颜色令牌，不另起配色 */
:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --fg: #1a1a1a;
  --muted: #646464;
  --line: #e2e0dc;
  --accent: #2f6d5f;
  --danger: #a33a2c;
  --radius: 6px;

  --card: var(--bg);
  --card-hover: color-mix(in srgb, var(--bg) 70%, var(--line));
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --line-soft: color-mix(in srgb, var(--line) 65%, transparent);
  --mono: "Cascadia Mono", Consolas, "Courier New", monospace;
  --shadow: 0 1px 2px color-mix(in srgb, var(--fg) 4%, transparent),
            0 6px 20px color-mix(in srgb, var(--fg) 6%, transparent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 12.5px; font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 顶栏 */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top-in { display: flex; align-items: center; gap: 14px; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--fg); font-weight: 600; letter-spacing: .2px; }
.brand:hover { text-decoration: none; }
.mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: var(--radius);
  background: var(--accent); color: #fff; font-size: 13px; font-weight: 700;
}
.top nav { margin-left: auto; display: flex; gap: 4px; }
.top nav a {
  padding: 6px 11px; border-radius: var(--radius);
  color: var(--muted); font-size: 13.5px;
}
.top nav a:hover { background: var(--card-hover); color: var(--fg); text-decoration: none; }

/* 页面主体 */
.hero { padding: 72px 0 40px; }
.kicker {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel); color: var(--muted); font-size: 12px;
}
.kicker b { color: var(--accent); font-weight: 600; }
.hero h1 {
  margin: 18px 0 12px;
  font-size: 38px; line-height: 1.25; letter-spacing: -.5px;
}
.hero .lead { max-width: 620px; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 38px; padding: 0 16px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); font-size: 14px; color: var(--fg);
  white-space: nowrap; cursor: pointer;
}
.btn:hover { background: var(--bg); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, var(--fg)); }
.btn.sm { height: 30px; padding: 0 11px; font-size: 13px; }
.btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }

.meta-line { margin-top: 14px; color: var(--muted); font-size: 12.5px; }
.meta-line .mono { color: var(--fg); }

/* 应用预览：纯 CSS 窗口，不用图片 */
.preview {
  margin: 44px 0 8px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow); overflow: hidden;
}
.pv-bar {
  display: flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 12px;
  border-bottom: 1px solid var(--line); background: var(--bg);
}
.pv-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.pv-title { margin-left: 6px; color: var(--muted); font-size: 12px; }
.pv-body { display: grid; grid-template-columns: 190px 1fr 210px; min-height: 286px; }
.pv-rail { border-right: 1px solid var(--line); padding: 12px 10px; background: var(--bg); }
.pv-rail div { padding: 5px 8px; border-radius: 4px; color: var(--muted); font-size: 12px; }
.pv-rail div.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.pv-rail hr { border: 0; border-top: 1px solid var(--line); margin: 9px 0; }
.pv-doc { padding: 16px 20px; }
.pv-doc h4 { margin: 0 0 8px; font-size: 14px; }
.pv-doc p { margin: 0 0 8px; color: var(--muted); font-size: 12.5px; line-height: 1.9; }
.pv-side { border-left: 1px solid var(--line); padding: 14px 12px; background: var(--bg); }
.pv-side .chip {
  display: inline-block; padding: 2px 7px; border: 1px solid var(--line);
  border-radius: 999px; background: var(--panel); font-size: 11px; color: var(--muted);
}
.pv-side ul { margin-top: 10px; }
.pv-side li {
  padding: 6px 8px; margin-bottom: 6px;
  border: 1px solid var(--line-soft); border-radius: 4px;
  background: var(--panel); color: var(--muted); font-size: 11.5px;
}

/* 功能卡片 */
section.block { padding: 54px 0; }
.sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 22px; }
.sec-head h2 { font-size: 22px; letter-spacing: -.2px; }
.sec-head span { color: var(--muted); font-size: 13px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  padding: 18px 18px 16px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--panel);
}
.card h3 { font-size: 15px; margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 13px; }
.card .mono { display: block; margin-top: 10px; color: var(--muted); font-size: 11.5px; }

/* 下载区 */
.download {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px;
  align-items: stretch;
}
.dl-main {
  padding: 26px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow);
}
.dl-main h2 { font-size: 20px; margin-bottom: 6px; }
.dl-main p { color: var(--muted); font-size: 13.5px; }
.dl-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; align-items: center; }
.dl-side {
  padding: 22px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg);
}
.dl-side h3 { font-size: 14px; margin-bottom: 10px; }
.dl-side li { padding: 7px 0; border-top: 1px solid var(--line-soft); font-size: 13px; color: var(--muted); }
.dl-side li:first-of-type { border-top: 0; }
.dl-side li b { color: var(--fg); font-weight: 600; }

/* 更新日志 */
.log { border-left: 2px solid var(--line); margin-left: 4px; padding-left: 22px; }
.log-item { position: relative; padding: 0 0 30px; }
.log-item::before {
  content: ""; position: absolute; left: -28px; top: 8px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--panel); border: 2px solid var(--line);
}
.log-item.current::before { border-color: var(--accent); background: var(--accent); }
.log-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; }
.log-head h3 { font-size: 17px; }
.log-head time { color: var(--muted); font-size: 12.5px; }
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-size: 11.5px; font-weight: 600;
}
.log ul { margin-top: 10px; }
.log li { position: relative; padding-left: 16px; color: var(--muted); font-size: 13.5px; margin-bottom: 4px; }
.log li::before { content: "·"; position: absolute; left: 2px; color: var(--accent); font-weight: 700; }

/* 页脚 */
.foot { border-top: 1px solid var(--line); padding: 26px 0 40px; color: var(--muted); font-size: 12.5px; }
.foot-in { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.foot-in nav { margin-left: auto; display: flex; gap: 14px; }

/* 提示条 */
.notice {
  margin-top: 14px; padding: 9px 12px;
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--danger) 8%, transparent);
  color: var(--danger); font-size: 12.5px;
}
.notice[hidden] { display: none; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .download { grid-template-columns: 1fr; }
  .pv-body { grid-template-columns: 1fr; }
  .pv-rail, .pv-side { display: none; }
  .hero h1 { font-size: 30px; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .top nav { display: none; }
}
/* ==================== 以下为 app.css 合并内容（原 app.css 已删除，改样式只改本文件） ==================== */
/* 动态页面追加样式：沿用 site.css 的 7 个颜色令牌，不另起配色 */

/* 顶栏右侧用户区 */
.top-in { flex-wrap: wrap; }
.top nav { flex-wrap: wrap; }
.user-nav { display: flex; align-items: center; gap: 10px; margin-left: 8px; font-size: 13.5px; }
.user-nav a { color: var(--muted); }
.user-nav a:hover { color: var(--fg); text-decoration: none; }

.inline-form { display: inline-flex; align-items: center; gap: 6px; margin: 0; }
.linkbtn {
  padding: 0; border: 0; background: none; cursor: pointer;
  color: var(--muted); font: inherit;
}
.linkbtn:hover { color: var(--danger); }

/* 提示条 */
.alert {
  margin: 16px 0 0; padding: 10px 14px;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 13.5px; background: var(--panel);
}
.alert-success { border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); background: var(--accent-soft); color: var(--accent); }
.alert-error { border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); background: color-mix(in srgb, var(--danger) 8%, transparent); color: var(--danger); }

/* 页面头 */
.page-head { padding: 52px 0 8px; }
.page-head h1 { font-size: 30px; letter-spacing: -.4px; }
.page-head p { margin-top: 10px; color: var(--muted); font-size: 14px; max-width: 720px; }
.page-head .back { display: inline-block; margin-bottom: 14px; font-size: 13px; color: var(--muted); }
.page-head .back:hover { color: var(--accent); text-decoration: none; }
.empty { padding: 22px 0; color: var(--muted); font-size: 14px; }
.empty.small { padding: 8px 0; font-size: 13px; }

/* 列表 */
.list { border-top: 1px solid var(--line); }
.list-item {
  display: block; padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
}
.list-item:hover { text-decoration: none; background: color-mix(in srgb, var(--panel) 60%, transparent); }
.list-title { display: flex; align-items: center; gap: 8px; font-size: 15.5px; font-weight: 600; }
.list-desc { margin-top: 5px; color: var(--muted); font-size: 13.5px; }
.list-meta { display: block; margin-top: 6px; color: var(--muted); font-size: 11.5px; }

/* 文章正文 */
.article {
  max-width: 760px; padding: 26px 28px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow);
  font-size: 15px; line-height: 2;
}
.article p { margin-bottom: 12px; }

/* 免费模型 */
.provider-list { display: grid; gap: 14px; }
.provider {
  padding: 20px 22px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--panel);
}
.provider-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.provider-head h3 { font-size: 16px; }
.provider-note { margin-top: 8px; color: var(--muted); font-size: 13px; }
.provider-url { margin-top: 4px; color: var(--muted); font-size: 12px; word-break: break-all; }
.model-list { margin-top: 12px; border-top: 1px solid var(--line-soft); }
.model-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 13.5px;
}
.model-list li b { font-weight: 600; }
.model-list li .mono { margin-left: 8px; color: var(--muted); font-size: 11.5px; }

.badge {
  display: inline-block; padding: 1px 8px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg); color: var(--muted); font-size: 11.5px;
}
.badge.ok { border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); background: var(--accent-soft); color: var(--accent); }
.badge.warn { border-color: color-mix(in srgb, #a07020 35%, var(--line)); background: color-mix(in srgb, #a07020 10%, transparent); color: #8a5f16; }

/* 表单 */
.form { display: grid; gap: 14px; }
.form.narrow { max-width: 420px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; }
.field { display: grid; gap: 6px; font-size: 13px; }
.field > span { color: var(--muted); }
.field input[type="text"], .field input[type="password"], .field input[type="number"],
.field select, .field textarea, .field input[type="file"] {
  width: 100%; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); color: var(--fg);
  font-family: inherit; font-size: 14px; line-height: 1.5;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent); outline: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field small { color: var(--muted); font-size: 11.5px; }
.field.checkbox { display: flex; align-items: center; gap: 8px; }
.field.checkbox > span { color: var(--fg); }
.btn.block { justify-content: center; width: 100%; }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--line)); }
.btn.danger:hover { background: color-mix(in srgb, var(--danger) 8%, transparent); }

/* 登录/注册卡片 */
.auth { padding: 64px 0; display: flex; justify-content: center; }
.auth-card {
  width: 100%; max-width: 380px; padding: 30px 28px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow);
}
.auth-card h1 { font-size: 22px; }
.auth-sub { margin: 6px 0 18px; color: var(--muted); font-size: 13px; }
.auth-card .alert { margin: 0 0 12px; }
.auth-card .form { gap: 12px; }
.auth-foot { margin-top: 16px; color: var(--muted); font-size: 13px; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, .table td {
  padding: 9px 12px; text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.table th { color: var(--muted); font-weight: 500; font-size: 12.5px; background: var(--bg); }
.table td .mono { color: var(--muted); }
.table tr.row-muted td { opacity: .6; }

/* 卡片网格补充 */
.grid.three { grid-template-columns: repeat(3, 1fr); }
.card-actions { margin-top: 12px; }

/* ---------- 首页转化结构 ---------- */
.hero-v2 { padding-bottom: 28px; }
.hero-v2 h1 { max-width: 860px; }
.hero-v2 .lead { max-width: 680px; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { background: var(--card-hover); color: var(--fg); }

.shot-hero {
  margin: 40px 0 6px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow); overflow: hidden;
}
.shot-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 9px 13px; border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.pv-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: color-mix(in srgb, var(--line) 55%, var(--muted));
  display: inline-block;
}
.shot-title { margin-left: 8px; color: var(--muted); font-size: 11.5px; }
.shot-hero img, .feature img, .shot-inline img { display: block; width: 100%; max-width: 100%; height: auto; }
.shot-hero figcaption, .shot-inline figcaption {
  padding: 9px 14px; border-top: 1px solid var(--line-soft);
  color: var(--muted); font-size: 12px; background: var(--panel);
}

.sec-head a { margin-left: auto; font-size: 13px; }

.verify {
  margin-top: 18px; padding: 16px 18px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg);
}
.verify h3 { font-size: 13px; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.verify dl { display: grid; grid-template-columns: 84px 1fr; gap: 7px 12px; font-size: 13px; }
.verify dt { color: var(--muted); }
.verify dd { min-width: 0; }
.hash {
  display: block; padding: 7px 9px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--panel); font-size: 11.5px; line-height: 1.6;
  word-break: break-all; user-select: all;
}
.log-verify { margin-top: 10px; font-size: 12.5px; }
.log-verify summary { cursor: pointer; color: var(--muted); }
.log-verify dl { display: grid; grid-template-columns: 84px 1fr; gap: 6px 12px; margin-top: 8px; }
.log-verify dt { color: var(--muted); }
.log-verify dd { min-width: 0; }
.mono.muted { color: var(--muted); }
.verify-note { margin-top: 10px; color: var(--muted); font-size: 12.5px; line-height: 1.8; }
.verify-note code { user-select: all; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature {
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); overflow: hidden;
  display: flex; flex-direction: column;
  min-width: 0;
}
.feature:first-child { grid-column: 1 / -1; }
.feature img { border-bottom: 1px solid var(--line-soft); background: var(--bg); }
.feature-body { padding: 16px 18px 18px; display: grid; gap: 7px; }
.feature-body h3 { font-size: 16.5px; }
.feature-body p { color: var(--muted); font-size: 13.5px; }
.feature-body a { font-size: 13px; }

.steps { display: grid; gap: 10px; counter-reset: step; }
.steps li {
  counter-increment: step;
  display: grid; grid-template-columns: 34px 1fr; gap: 2px 12px;
  padding: 14px 16px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--panel);
}
.steps li::before {
  content: counter(step);
  grid-row: span 2; align-self: start;
  display: grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--mono); font-size: 12.5px;
}
.steps li b { font-size: 14.5px; }
.steps li span { color: var(--muted); font-size: 13px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  padding: 14px 4px; cursor: pointer; font-size: 15px; font-weight: 600;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "＋"; float: right; color: var(--muted); font-weight: 400; }
.faq-list details[open] summary::after { content: "－"; }
.faq-list details p { padding: 0 4px 16px; color: var(--muted); font-size: 13.5px; max-width: 820px; }

/* ---------- 页脚 ---------- */
.foot-in { justify-content: space-between; align-items: flex-start; gap: 22px; }
.foot-brand { display: grid; gap: 4px; }
.foot-brand .brand { color: var(--fg); font-size: 14px; }
.foot-note { color: var(--muted); font-size: 12px; }
.foot-links { margin-left: 0 !important; flex-wrap: wrap; }
.foot-meta { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

/* ---------- 文档 ---------- */
.docs-head { padding-bottom: 16px; }
.toc {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 14px 0 22px; border-bottom: 1px solid var(--line); margin-bottom: 8px;
}
.toc a {
  padding: 5px 11px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel); color: var(--muted); font-size: 12.5px;
}
.toc a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.doc { max-width: 820px; padding-bottom: 40px; }
.doc section { padding: 26px 0 6px; border-bottom: 1px solid var(--line-soft); }
.doc section:last-child { border-bottom: 0; }
.doc h2 { font-size: 24px; letter-spacing: -.3px; margin-bottom: 10px; }
.doc h3 { font-size: 16.5px; margin: 20px 0 8px; }
.doc p { margin: 8px 0; font-size: 14.5px; line-height: 1.9; }
.doc .doc-lead { color: var(--muted); }
.doc .doc-note { color: var(--muted); font-size: 13px; }
.doc ol, .doc ul { margin: 8px 0 8px 4px; display: grid; gap: 7px; }
.doc ol { counter-reset: docitem; }
.doc ol > li { counter-increment: docitem; display: grid; grid-template-columns: 22px 1fr; gap: 8px; font-size: 14.5px; line-height: 1.85; }
.doc ol > li::before {
  content: counter(docitem) ".";
  color: var(--muted); font-family: var(--mono); font-size: 12.5px;
}
.doc ul > li {
  position: relative; padding-left: 16px;
  font-size: 14.5px; line-height: 1.85; color: var(--fg);
}
.doc ul > li::before {
  content: ""; position: absolute; left: 3px; top: .78em;
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
}
.doc code {
  padding: 1px 5px; border: 1px solid var(--line); border-radius: 4px;
  background: var(--panel); color: var(--fg); font-size: 12px;
}
.doc kbd, .keytable kbd {
  display: inline-block; min-width: 20px; padding: 0 5px;
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px;
  background: var(--panel); font-family: var(--mono); font-size: 11.5px;
  line-height: 18px; text-align: center; color: var(--fg);
}
.keytable td { white-space: nowrap; }
.keytable td:last-child { white-space: normal; }
.shot-inline {
  margin: 18px 0 8px; border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; background: var(--panel);
}
.pathlist { margin-top: 6px; }

/* ---------- 文档：多篇 ---------- */
.doc-shell { display: grid; grid-template-columns: 208px minmax(0, 1fr); gap: 40px; padding: 34px 0 20px; align-items: start; }
.doc-side { position: sticky; top: 18px; padding-right: 18px; border-right: 1px solid var(--line); }
.doc-side-title { margin-bottom: 12px; color: var(--muted); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; }
.doc-side-group { margin-bottom: 18px; }
.doc-side-head { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11.5px; }
.doc-side a { display: block; padding: 4px 0 4px 9px; border-left: 2px solid transparent; color: var(--muted); font-size: 13px; }
.doc-side a:hover { color: var(--fg); text-decoration: none; }
.doc-side a.on { border-left-color: var(--accent); color: var(--accent); }
.doc-article { max-width: 780px; padding-bottom: 60px; }
.crumb { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); font-size: 12px; }
.crumb a { color: var(--muted); }
.doc-h1 { margin: 12px 0 8px; font-size: 30px; letter-spacing: -.4px; }
.doc-sub { max-width: 720px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.doc-pager { display: flex; gap: 12px; justify-content: space-between; margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); }
.doc-pager a { display: grid; gap: 3px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); font-size: 13.5px; }
.doc-pager a span { color: var(--muted); font-size: 11.5px; }
.doc-pager a:hover { border-color: var(--accent); text-decoration: none; }
.doc-pager .next { margin-left: auto; text-align: right; }

.doc-cards { padding: 6px 0 50px; }
.doc-group { padding: 22px 0 6px; border-bottom: 1px solid var(--line-soft); }
.doc-group:last-child { border-bottom: 0; }
.doc-group h2 { margin-bottom: 12px; color: var(--muted); font-size: 15px; letter-spacing: .04em; }
.doc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding-bottom: 16px; }
.doc-card { display: grid; gap: 6px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.doc-card:hover { border-color: var(--accent); text-decoration: none; }
.doc-card-title { font-size: 15.5px; font-weight: 600; }
.doc-card-desc { color: var(--muted); font-size: 13px; line-height: 1.75; }

/* ---------- 搜索 / 404 ---------- */
.search-form { display: flex; gap: 8px; margin: 18px 0 10px; max-width: 520px; }
.search-form input {
  flex: 1; min-width: 0; padding: 9px 12px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--panel); color: var(--fg); font: inherit; font-size: 14px;
}
.search-form input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 1px; }
.notfound-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.notfound .search-form { margin-top: 22px; }
.notfound .meta-line { margin-top: 14px; }
.search-head .meta-line { margin-top: 4px; }
.search-results { max-width: 820px; padding-bottom: 50px; }
.search-group { padding: 18px 0 6px; border-bottom: 1px solid var(--line-soft); }
.search-group:last-child { border-bottom: 0; }
.search-group h2 { margin-bottom: 8px; color: var(--muted); font-size: 15px; }
.search-hit { padding: 12px 0; border-top: 1px solid var(--line-soft); }
.search-hit:first-of-type { border-top: 0; }
.search-hit-title { font-size: 15.5px; font-weight: 600; }
.search-hit-snippet { margin-top: 5px; color: var(--muted); font-size: 13.5px; line-height: 1.8; }
.search-hit-snippet mark {
  padding: 0 2px; border-radius: 3px;
  background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--fg);
}
.foot-search { display: flex; gap: 6px; margin-top: 10px; }
.foot-search input {
  width: 150px; max-width: 100%; padding: 5px 9px;
  border: 1px solid var(--line); border-radius: 6px;
  background: var(--panel); color: var(--fg); font-size: 12.5px;
}
.foot-search button {
  padding: 5px 10px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--panel); color: var(--muted); font-size: 12.5px; cursor: pointer;
}
.foot-search button:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 收藏 / 下载状态 ---------- */
.status-note { display: block; margin-top: 3px; color: var(--muted); font-size: 11.5px; }
.badge.danger { border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); background: color-mix(in srgb, var(--danger) 8%, transparent); color: var(--danger); }

@media (max-width: 860px) {
  .grid.three { grid-template-columns: 1fr; }
  .top nav { display: none; }
  .user-nav { margin-left: auto; }
  .article { padding: 20px 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature:first-child { grid-column: auto; }
  .hero h1 { font-size: 30px; }
  .foot-in { flex-direction: column; }
  .foot-meta { margin-left: 0; }
  .doc-shell { grid-template-columns: 1fr; gap: 8px; }
  .doc-side { position: static; display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 0 0 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .doc-side-title { width: 100%; margin-bottom: 0; }
  .doc-side-group { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-bottom: 0; }
  .doc-side-head { display: none; }
  .doc-side a { padding: 4px 0; border-left: 0; min-height: 36px; display: inline-flex; align-items: center; }
  .doc-grid { grid-template-columns: 1fr; }

  /* 移动端可点区域：主操作 ≥44px，列表内文字链 ≥36px */
  .brand { min-height: 44px; }
  .user-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; }
  .btn { height: 44px; }
  .foot-links a { display: inline-flex; align-items: center; min-height: 36px; }
  .faq-list summary { min-height: 44px; }
  .log-verify summary { display: flex; align-items: center; min-height: 44px; padding: 4px 0; }
  .foot-search input, .foot-search button { min-height: 44px; }
  .foot-search input { width: 100%; }
  .feature-body a { display: inline-flex; align-items: center; min-height: 36px; }
  .log-head a { display: inline-flex; align-items: center; min-height: 32px; padding: 2px 0; }
  .auth-foot a { display: inline-flex; align-items: center; min-height: 32px; padding: 0 4px; }
  .foot-meta a, .sec-head a, .notfound .meta-line a { display: inline-flex; align-items: center; min-height: 32px; padding: 0 2px; }
}