/* 城市数据人 udu.org.cn — 浅色界面
   结构：顶栏 · 首屏（搜索 + 推荐位）· 分类条 · 卡片网格（主栏）+ 侧栏
   color-mix() 都带了普通颜色兜底，旧浏览器（部分微信内置浏览器）也能正常显示。 */
:root {
  --bg: #F5F7FA;
  --bg-2: #EDF1F6;
  --panel: #FFFFFF;
  --panel-2: #F1F4F8;
  --line: #E3E8EF;
  --line-2: #CDD5E0;
  --ink: #1A2233;
  --ink-2: #44506A;
  --muted: #74809A;
  --blue: #1F6FEB;
  --blue-d: #1559C6;
  --blue-t: #EAF2FE;
  --teal: #0E9384;
  --amber: #B45309;
  --amber-t: #FEF3E2;
  --rose: #C2416C;
  --purple: #7C3AED;
  --ok: #15803D;
  --ok-t: #E8F6EC;
  --warn: #B45309;
  --warn-t: #FEF3E2;
  --bad: #C0362C;
  --bad-t: #FDECEA;
  --tint: #F1F4F8;
  --tint-2: #E8EDF4;

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  --r: 12px;
  --r-sm: 8px;
  --shadow: 0 1px 2px rgba(26, 34, 51, .04), 0 6px 20px -14px rgba(26, 34, 51, .25);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.7 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0; font-weight: 700; }
p { margin: 0 0 1em; }
code, pre, .mono { font-family: var(--mono); }
code { font-size: .86em; background: var(--tint); padding: .1em .4em; border-radius: 4px; color: var(--ink-2); }
pre { background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 14px 16px; overflow-x: auto; font-size: 13px; line-height: 1.6; }
pre code { background: none; padding: 0; }
.small { font-size: 13px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.sel { user-select: all; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--blue); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 99; }
.skip:focus { left: 8px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: 1320px; margin: 0 auto; padding-inline: 20px; }
.wrap.narrow { max-width: 880px; }
.wrap.narrow-wide { max-width: 1180px; }
@media (max-width: 600px) { .wrap { padding-inline: 16px; } }

.ic { width: 18px; height: 18px; flex: none; vertical-align: -3px; }
.ic-sm { width: 15px; height: 15px; }
.ic-xs { width: 13px; height: 13px; vertical-align: -2px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: 600 14px/1 var(--font); padding: 11px 16px; border-radius: 9px; border: 1px solid transparent; cursor: pointer; color: var(--ink); background: var(--panel-2); text-decoration: none !important; white-space: nowrap; transition: background .15s, border-color .15s, color .15s, box-shadow .15s; }
.btn-sm { padding: 8px 12px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 13px 22px; font-size: 15px; }
.btn-go { background: var(--blue); color: #fff; box-shadow: 0 4px 14px -6px rgba(31, 111, 235, .6); }
.btn-go:hover { background: var(--blue-d); }
.btn-ghost { background: var(--panel); border-color: var(--line-2); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--ink-2); color: var(--ink); }
.btn-line { background: var(--panel); border-color: #BCD3F8; color: var(--blue); }
.btn-line:hover { background: var(--blue-t); }
.row-btns { display: flex; gap: 8px; flex-wrap: wrap; }

/* 顶栏 */
.top { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 20px; height: 62px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; font-size: 18px; text-decoration: none !important; white-space: nowrap; }
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: .06em; margin-top: 2px; }
.brand span { line-height: 1.15; }
.top-search { flex: 1; max-width: 480px; display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 0 12px; color: var(--muted); }
.top-search:focus-within { border-color: #9DBDF5; background: #fff; }
.top-search input { flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: var(--ink); font: 14px var(--font); height: 38px; }
.top-nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.top-nav > a:not(.btn) { color: var(--ink-2); padding: 8px 11px; border-radius: 8px; font-weight: 500; font-size: 14px; }
.top-nav > a:not(.btn):hover, .top-nav > a.on { color: var(--blue); background: var(--blue-t); text-decoration: none; }
.top-nav .btn { margin-left: 6px; }
@media (max-width: 900px) { .top-nav > a:not(.btn) { display: none; } }
@media (max-width: 560px) { .top-in { gap: 10px; } .brand > span { display: none; } .top-nav .btn span { display: none; } .top-nav .btn { padding: 8px 10px; margin: 0; } }

/* 首屏 */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); border-bottom: 1px solid var(--line); }
.hero-grid { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-grid path { stroke: #E6ECF4; stroke-width: 1; }
.hero-in { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px; align-items: center; padding-block: 44px 38px; }
.hero-copy { min-width: 0; }
.eyebrow { font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.eyebrow .ic { margin-right: 4px; }
.eyebrow a { color: var(--muted); }
.eyebrow .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px var(--ok-t); margin-right: 10px; vertical-align: 1px; }
.hero h1 { font-size: clamp(32px, 5vw, 54px); font-weight: 800; letter-spacing: -.01em; line-height: 1.12; }
.hero h1 em { font-style: normal; color: var(--blue); }
.lede { font-size: 16.5px; color: var(--ink-2); max-width: 62ch; margin-top: 14px; }
.hero-search { display: flex; align-items: center; gap: 10px; margin-top: 24px; background: #fff; border: 1px solid var(--line-2); border-radius: 12px; padding: 0 16px; box-shadow: 0 14px 36px -24px rgba(26, 34, 51, .45); color: var(--muted); }
.hero-search:focus-within { border-color: #8FB3F2; box-shadow: 0 14px 36px -24px rgba(26, 34, 51, .45), 0 0 0 4px var(--blue-t); }
.hero-search input { flex: 1; min-width: 0; height: 54px; background: none; border: 0; outline: 0; color: var(--ink); font: 16px var(--font); }
.hero-count { font-size: 13px; color: var(--blue); white-space: nowrap; }
.big-search { max-width: 640px; margin: 18px auto 0; }
.page-head .big-search { margin-left: 0; }
.big-search input { height: 48px; }
.quick { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 14px; }
.quick button { font: 13px var(--font); color: var(--ink-2); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; cursor: pointer; }
.quick button:hover, .quick button.on { color: #fff; background: var(--blue); border-color: var(--blue); }
@media (max-width: 960px) { .hero-in { grid-template-columns: 1fr; gap: 24px; padding-block: 28px; } }

/* 首屏推荐位 */
.hero-ad { position: relative; display: grid; grid-template-rows: 140px auto; border-radius: 16px; overflow: hidden; color: var(--ink); text-decoration: none !important; background: #fff; border: 1px solid var(--line); box-shadow: 0 24px 50px -32px rgba(26, 34, 51, .5); transition: box-shadow .2s, border-color .2s; min-width: 0; }
.hero-ad:hover { border-color: #BCD3F8; box-shadow: 0 28px 56px -30px rgba(31, 111, 235, .45); }
.hero-ad-label { position: absolute; top: 12px; right: 12px; z-index: 2; font-size: 11px; color: var(--amber); background: #fff; border: 1px solid #F3D3A8; padding: 2px 9px; border-radius: 999px; }
.hero-ad-art svg { width: 100%; height: 100%; display: block; }
.ad-bg { fill: #EEF4FC; }
.ad-road { stroke: #C9D8EE; stroke-width: 12; stroke-linecap: round; }
.ad-road2 { stroke: #DCE5F2; stroke-width: 6; }
.ad-hex path { fill: #F59E0B; }
.ad-od { stroke: var(--blue); stroke-width: 2.2; stroke-dasharray: 5 4; }
.ad-dot { fill: var(--blue); }
.hero-ad-body { padding: 16px 20px 20px; }
.hero-ad-body strong { display: block; font-size: 18px; }
.hero-ad-body p { color: var(--ink-2); font-size: 14px; margin: 6px 0 12px; }
.hero-ad-body ul { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.hero-ad-body li { font-size: 12px; color: var(--blue); background: var(--blue-t); border-radius: 6px; padding: 2px 8px; }
.hero-ad.hero-ad-img { display: block; aspect-ratio: 4 / 3; line-height: 0; }
.hero-ad-img picture, .hero-ad-img img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* 分类条 */
.catnav { display: flex; gap: 6px; overflow-x: auto; padding: 14px 0 6px; scrollbar-width: thin; }
.catnav a { flex: none; display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--ink-2); background: #fff; border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; text-decoration: none; }
.catnav a i { width: 8px; height: 8px; border-radius: 2px; background: var(--cat, var(--blue)); }
.catnav a:hover { border-color: var(--line-2); color: var(--ink); }
.catnav a.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 布局 */
.home-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 28px; padding-block: 16px 60px; align-items: start; }
.home-main { min-width: 0; }
.home-side { display: grid; gap: 14px; min-width: 0; }
@media (max-width: 1080px) { .home-layout { grid-template-columns: 1fr; } }

.group-title { display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 600; color: var(--muted); letter-spacing: .12em; margin: 30px 0 -6px; }
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.block { padding-top: 22px; scroll-margin-top: 80px; }
.block-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.block-head h2 { font-size: 19px; display: flex; align-items: center; gap: 10px; }
.block-head h2 small { font-size: 13px; color: var(--muted); font-weight: 400; }
.more { font-size: 13px; font-weight: 600; color: var(--blue); display: inline-flex; align-items: center; gap: 4px; }
.cat-ic { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; color: var(--cat, var(--blue)); background: var(--tint); background: color-mix(in srgb, var(--cat, var(--blue)) 12%, #fff); flex: none; }
.cat-ic .ic { width: 17px; height: 17px; }
.cat-ic-lg { width: 58px; height: 58px; border-radius: 15px; }
.cat-ic-lg .ic { width: 28px; height: 28px; }

/* 卡片 */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(236px, 1fr)); gap: 12px; }
.card { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 15px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); transition: border-color .18s, box-shadow .18s, transform .18s; min-width: 0; overflow: hidden; }
.card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--cat, var(--blue)); opacity: .7; }
.card:hover { border-color: var(--line-2); transform: translateY(-2px); box-shadow: 0 16px 34px -22px rgba(26, 34, 51, .45); }
.card-hit { position: absolute; inset: 0; z-index: 0; }
.card > *:not(.card-hit) { position: relative; z-index: 1; pointer-events: none; }
.card .card-act, .card .card-act * { pointer-events: auto; }
.card-top { display: flex; align-items: center; gap: 11px; min-width: 0; }
.card-id { min-width: 0; }
.card-name { font-size: 15.5px; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-dom { display: block; font: 11.5px var(--mono); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-tag { color: var(--ink-2); font-size: 13.5px; line-height: 1.55; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 3.1em; }
.card-spec { margin: 0; font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: auto; }
.clicks { margin-left: auto; font: 12px var(--mono); color: var(--muted); display: inline-flex; align-items: center; gap: 4px; }
.card-act { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.card-act .btn { width: 100%; }
.flag { position: absolute !important; top: 10px; right: 10px; font-size: 11px; line-height: 1; padding: 4px 8px; border-radius: 999px; color: var(--blue); background: var(--blue-t); z-index: 2 !important; }
.flag-ad { color: var(--amber); background: var(--amber-t); }
.d-flags .flag { position: static !important; }
.card.is-sponsored { border-color: #F3D3A8; }
.card.is-sponsored::before { background: var(--amber); opacity: 1; }
.card.is-featured { border-color: #C9DBF8; }
.card.is-featured .card-top, .card.is-sponsored .card-top { padding-right: 46px; }

/* 文字头像 */
.logo { --s: 40px; position: relative; display: inline-grid; place-items: center; width: var(--s); height: var(--s); flex: none; border-radius: calc(var(--s) * .28); overflow: hidden; background: var(--cat, var(--blue)); }
.logo::before { content: attr(data-initials); position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; font-size: calc(var(--s) * .42); line-height: 1; color: #fff; }
.logo img { position: relative; width: 100%; height: 100%; object-fit: contain; background: #fff; padding: 18%; }

/* 标签 */
.badge { font-size: 11.5px; line-height: 1; padding: 4px 8px; border-radius: 5px; background: var(--tint); color: var(--ink-2); white-space: nowrap; }
.k-data { background: var(--blue-t); color: var(--blue-d); }
.k-platform { background: #EEF0FF; color: #4338CA; }
.k-api { background: #FDEEF3; color: var(--rose); }
.k-tool, .k-learning { background: #EAF7F5; color: #0F766E; }
.k-org, .k-journal, .k-report { background: #F4EEFE; color: #6D28D9; }
.a-direct { background: var(--ok-t); color: var(--ok); }
.a-register, .a-view, .a-api { background: var(--tint); color: var(--ink-2); }
.a-apply, .a-paid, .a-netdisk { background: var(--warn-t); color: var(--warn); }
.b-free, .b-open-source { background: var(--ok-t); color: var(--ok); }
.b-freemium { background: #EAF7F5; color: #0F766E; }
.b-paid, .b-enterprise, .b-warn { background: var(--warn-t); color: var(--warn); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.chip { font-size: 13px; color: var(--ink-2); background: #fff; border: 1px solid var(--line); padding: 4px 11px; border-radius: 999px; text-decoration: none !important; }
.chip:hover { border-color: var(--line-2); color: var(--ink); }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 面板 */
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 18px; min-width: 0; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.panel-head h2, .panel-title { font-size: 15.5px; display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.panel-head h2 { margin: 0; }
.panel p:last-child { margin-bottom: 0; }
.topic-links { list-style: none; margin: 0; padding: 0; display: grid; }
.topic-links li { border-bottom: 1px solid var(--line); padding: 8px 0; font-size: 14px; line-height: 1.5; }
.topic-links li:last-child { border-bottom: 0; }
.topic-links a { color: var(--ink); }
.topic-links a:hover { color: var(--blue); }
.topic-links-lg li { display: grid; gap: 2px; }
.topic-links-lg span { font-size: 13px; color: var(--muted); }
.mini-charts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 4px 0 14px; }
.mini-charts a { display: block; background: var(--bg); border-radius: 8px; padding: 6px; }

/* 筛选 */
.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 10px; }
.mini-search { background: #fff; border: 1px solid var(--line-2); border-radius: 9px; color: var(--ink); font: 14px var(--font); padding: 9px 12px; min-width: 0; width: 280px; max-width: 100%; }
.facets { display: grid; gap: 8px; margin-top: 12px; padding: 12px 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); }
.facet { display: flex; align-items: center; gap: 10px; min-width: 0; }
.facet-l { flex: none; width: 34px; font-size: 13px; color: var(--muted); }
.facet .seg { margin: 0; border: 0; padding: 0; background: none; gap: 4px; }
.facet .seg button { padding: 4px 10px; border: 1px solid transparent; }
.facet .seg button:hover { border-color: var(--line-2); }
.facet-checks { flex-wrap: wrap; gap: 14px; padding-left: 44px; font-size: 13px; color: var(--ink-2); }
.facet-checks label { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.facet-reset { margin-left: auto; font: 13px var(--font); color: var(--blue); background: none; border: 0; cursor: pointer; }
@media (max-width: 640px) { .facet { align-items: flex-start; } .facet-checks { padding-left: 0; } }

.seg { display: inline-flex; gap: 2px; padding: 3px; background: #fff; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.seg a, .seg button { font: 500 13px var(--font); color: var(--ink-2); background: none; border: 0; padding: 6px 12px; border-radius: 7px; cursor: pointer; text-decoration: none; }
.seg a.on, .seg button.on { background: var(--blue); color: #fff; }

/* 排行 */
.rank { list-style: none; margin: 0; padding: 0; }
.rank-row { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.rank-row:last-child { border-bottom: 0; }
.rank-n { width: 22px; flex: none; font: 600 13px var(--mono); color: var(--muted); text-align: right; }
.rank-row.top .rank-n { color: var(--amber); }
.rank-name { flex: 1; min-width: 0; color: var(--ink); text-decoration: none !important; }
.rank-name strong { display: block; font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-name span { display: block; font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-name:hover strong { color: var(--blue); }
.rank-val { font: 600 13px var(--mono); color: var(--ink-2); text-align: right; white-space: nowrap; }
.rank-val small { font: 11px var(--font); color: var(--muted); margin-left: 2px; }
.rank-go { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; color: var(--ink-2); border: 1px solid var(--line); }
.rank-go:hover { color: #fff; background: var(--blue); border-color: var(--blue); }
.rank-big .rank-row { padding: 11px 14px; background: #fff; border: 1px solid var(--line); border-radius: 11px; margin-bottom: 8px; gap: 14px; }
.rank-big .rank-n { font-size: 16px; width: 30px; }
.rank-bar { flex: 0 0 20%; height: 6px; background: var(--tint); border-radius: 99px; overflow: hidden; }
.rank-bar i { display: block; height: 100%; background: var(--cat, var(--blue)); border-radius: 99px; }
.rank-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; padding-bottom: 60px; }
.rank-layout > * { min-width: 0; }
.rank-cats { display: flex; flex-direction: column; gap: 2px; position: sticky; top: 80px; align-self: start; }
.rank-cats a { display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: 14px; padding: 6px 10px; border-radius: 8px; text-decoration: none; }
.rank-cats a i { width: 7px; height: 7px; border-radius: 2px; background: var(--cat, var(--blue)); }
.rank-cats a:hover { background: #fff; }
.rank-cats a.on { background: #fff; color: var(--ink); font-weight: 600; box-shadow: 0 0 0 1px var(--line); }
@media (max-width: 860px) { .rank-layout { grid-template-columns: 1fr; } .rank-cats { position: static; flex-direction: row; overflow-x: auto; } .rank-cats a { flex: none; } .rank-bar { display: none; } }

/* 页面标题 */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: 13px; color: var(--muted); padding-top: 18px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }
.page-head { padding-block: 18px 6px; }
.page-head h1, .cat-hero h1 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; }
.cat-hero { display: flex; gap: 18px; align-items: flex-start; padding-block: 16px 4px; }
.cat-hero > div { min-width: 0; }
.cat-hero .lede { margin-top: 8px; }

/* 详情页 */
.detail { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; padding-block: 8px 60px; align-items: start; }
.detail-main { min-width: 0; }
.detail-side { display: grid; gap: 14px; position: sticky; top: 80px; min-width: 0; }
@media (max-width: 1000px) { .detail { grid-template-columns: 1fr; } .detail-side { position: static; } }
.d-head { display: flex; gap: 18px; align-items: center; padding-top: 14px; }
.d-id { min-width: 0; }
.d-flags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.d-head h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; }
.d-tag { font-size: 16.5px; color: var(--ink-2); margin: 6px 0 0; }
.d-cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 22px 0 6px; }
.d-url { font: 13px var(--mono); color: var(--muted); }
.d-sec { padding-top: 28px; }
.d-sec > h2, .prose h2, .block-head h2 { font-size: 20px; }
.d-sec > h2 { margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.prose { max-width: 76ch; }
.prose p, .prose li { color: var(--ink-2); font-size: 15.5px; line-height: 1.85; }
.prose h2 { margin: 30px 0 12px; }
.prose h3 { font-size: 17px; margin: 22px 0 8px; }
.prose ol, .prose ul { padding-left: 22px; }
.prose li { margin-bottom: 4px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 10px 0 18px; background: #fff; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.prose th { background: var(--panel-2); font-weight: 600; }
.prose .callout { background: var(--blue-t); border-radius: 10px; padding: 12px 16px; color: var(--ink); }
.prose .callout-warn { background: var(--warn-t); }
.prose blockquote { margin: 0 0 1em; padding: 4px 16px; border-left: 3px solid var(--line-2); color: var(--ink-2); }
.spec { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0; margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.spec > div { padding: 11px 16px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); margin: 0 -1px -1px 0; }
.spec dt { font-size: 12px; color: var(--muted); }
.spec dd { margin: 2px 0 0; font-weight: 600; font-size: 14.5px; overflow-wrap: anywhere; }
.fmts { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.fmts code { font-size: 12px; font-weight: 600; background: var(--blue-t); color: var(--blue-d); }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px 18px; }
.ticks li { display: flex; gap: 8px; align-items: flex-start; color: var(--ink-2); }
.ticks .ic { color: var(--ok); margin-top: 5px; }
.tips { }
.d-sec.tips, .panel.tips { background: var(--warn-t); border: 1px solid #F3D9B5; border-radius: var(--r); padding: 16px 18px; margin-top: 28px; }
.d-sec.tips h2 { font-size: 16px; color: var(--warn); margin-bottom: 8px; }
.tips ul { margin: 0; padding-left: 20px; color: var(--ink); }
.tips li { margin-bottom: 4px; }
.cite { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; font-size: 14px; }
.facts { display: grid; gap: 0; margin: 0; }
.facts > div { border-bottom: 1px solid var(--line); padding: 9px 0; display: flex; justify-content: space-between; gap: 10px; }
.facts > div:last-child { border-bottom: 0; }
.facts dt { white-space: nowrap; color: var(--muted); font-size: 13px; }
.facts dd { margin: 0; text-align: right; font-weight: 500; min-width: 0; overflow-wrap: anywhere; font-size: 14px; }
.stats-panel { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; gap: 6px; }
.stats-panel b { display: block; font-size: 19px; color: var(--ink); }
.stats-panel span { font-size: 11.5px; color: var(--muted); }
.lic-ok { color: var(--ok); } .lic-warn { color: var(--warn); } .lic-bad { color: var(--bad); } .lic-na { color: var(--muted); font-weight: 500; }
.compare-links { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 14px; }

/* 专题 */
.topic-head .lede { font-size: 17px; }
.topic-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 36px; padding-block: 6px 60px; align-items: start; }
.topic-layout > * { min-width: 0; }
@media (max-width: 1000px) { .topic-layout { grid-template-columns: 1fr; } }
.topic-body { padding-top: 6px; }
.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; padding-block: 14px 60px; }
.topic-card { display: flex; flex-direction: column; gap: 8px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); color: var(--ink); text-decoration: none !important; transition: border-color .18s, transform .18s; border-top: 3px solid var(--cat, var(--blue)); }
.topic-card:hover { border-color: var(--line-2); border-top-color: var(--cat, var(--blue)); transform: translateY(-2px); }
.topic-card h2 { font-size: 18px; line-height: 1.45; }
.topic-card p { color: var(--ink-2); font-size: 14px; margin: 0; flex: 1; }
.topic-cat { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--cat, var(--blue)); }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 0 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; padding: 13px 0; font-weight: 600; list-style-position: outside; }
.faq details p { color: var(--ink-2); margin: 0 0 14px; }
.hit-panel { margin-bottom: 14px; }

/* 图表百科 */
.chart-svg { display: block; width: 100%; height: auto; }
.cs-a { fill: #1F6FEB; } .cs-b { fill: #7FB0F6; } .cs-c { fill: #F59E0B; }
.cs-l { stroke: #9AA6BB; stroke-width: 1.2; fill: none; }
.cs-line { stroke: #1F6FEB; stroke-width: 2.4; fill: none; stroke-linejoin: round; stroke-linecap: round; }
.cs-line2 { stroke: #F59E0B; stroke-width: 2; fill: none; }
.cs-line3 { stroke: #7FB0F6; stroke-width: 2; fill: none; }
.cs-dot { fill: #1F6FEB; } .cs-dot2 { fill: #F59E0B; }
.cs-flow { fill: rgba(31, 111, 235, .28); stroke: rgba(31, 111, 235, .55); stroke-width: 1.4; }
.cs-flow2 { fill: rgba(245, 158, 11, .28); stroke: rgba(245, 158, 11, .6); stroke-width: 1.4; }
.chord .cs-flow { fill: none; }
.chart-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.chart-card { display: flex; flex-direction: column; gap: 6px; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); color: var(--ink); text-decoration: none !important; transition: border-color .18s, transform .18s; }
.chart-card:hover { border-color: #BCD3F8; transform: translateY(-2px); }
.chart-card .chart-svg { background: var(--bg); border-radius: 8px; padding: 8px; }
.chart-card h3 { font-size: 15px; margin-top: 4px; display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.chart-fam { flex: none; white-space: nowrap; font-size: 11px; font-weight: 500; color: var(--muted); background: var(--tint); border-radius: 4px; padding: 1px 6px; }
.chart-fams { padding-top: 8px; }
.chart-fams .chip { cursor: pointer; font-family: var(--font); }
.chart-card p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.5; }
.chart-head { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 24px; align-items: center; padding-block: 18px 6px; }
.chart-hero { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.chart-head h1 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; }
@media (max-width: 600px) { .chart-head { grid-template-columns: 1fr; } .chart-hero { max-width: 200px; } }
.warn-list li::marker { color: var(--warn); }
.chart-mini-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.chart-mini-list a { display: grid; gap: 4px; background: var(--bg); border-radius: 8px; padding: 8px; font-size: 13px; color: var(--ink); text-align: center; }

/* 表格 */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.cmp-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 600px; }
.cmp-table th, .cmp-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.cmp-table thead th { font-size: 12.5px; font-weight: 600; color: var(--muted); background: var(--panel-2); white-space: nowrap; }
.cmp-table tbody tr:hover { background: #FAFBFD; }
.cmp-table tbody th { color: var(--muted); font-weight: 500; white-space: nowrap; width: 120px; }
.cmp-vs td { width: 42%; }
.cmp-table td.nw { white-space: nowrap; }
.cmp-table td.w7 { min-width: 7em; }
.vs-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-block: 18px; }
.vs-card .card-top { margin-bottom: 10px; }
.vs-card p { color: var(--ink-2); font-size: 14px; }
@media (max-width: 760px) { .vs-cols { grid-template-columns: 1fr; } }

/* 分类总览 */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; padding-block: 18px 10px; }
.cat-card { display: flex; flex-direction: column; gap: 8px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); color: var(--ink); text-decoration: none !important; transition: border-color .18s, transform .18s; min-width: 0; }
.cat-card:hover { border-color: var(--cat, var(--line-2)); transform: translateY(-2px); }
.cat-card h3 { font-size: 17px; }
.cat-card p { color: var(--ink-2); font-size: 14px; margin: 0; flex: 1; }
.cat-logos { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.cat-logos em { font-style: normal; font-size: 12px; color: var(--ink-2); background: var(--tint); border-radius: 5px; padding: 2px 7px; }
.cat-logos .small { margin-left: auto; }

/* 表单 */
.form { display: grid; gap: 14px; }
.f-row { display: grid; gap: 6px; }
.f-two { grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .f-two { grid-template-columns: 1fr; } }
.form label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.form input, .form select, .form textarea { background: #fff; border: 1px solid var(--line-2); border-radius: 9px; color: var(--ink); font: 15px var(--font); padding: 10px 12px; width: 100%; min-width: 0; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 0; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-t); }
.form .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.note { padding: 12px 14px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--line-2); margin: 10px 0 16px; }
.note-ok { background: var(--ok-t); border-color: #B7E1C2; color: var(--ok); }
.note-bad { background: var(--bad-t); border-color: #F2C1BC; color: var(--bad); }

/* 广告页 */
.price-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0; }
.price-card.hot { border-color: #F3D3A8; }
.price b { font-size: 30px; font-weight: 800; }
.price span { color: var(--muted); margin-left: 4px; }
.price-card .ticks { grid-template-columns: 1fr; }

.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--line-2); border-radius: var(--r); background: #fff; }
.links { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; font-size: 14px; }
.notfound { padding-block: 70px; }
.notfound h1 { font-size: 34px; }


/* 页脚 */
.foot { border-top: 1px solid var(--line); background: #fff; margin-top: 20px; }
.foot-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 40px; padding-block: 36px 24px; }
.foot-brand p { color: var(--muted); font-size: 13.5px; margin-top: 12px; max-width: 42ch; }
.foot-cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.foot-cols h4 { font-size: 13px; color: var(--ink); margin-bottom: 8px; }
.foot-cols a { display: block; color: var(--ink-2); font-size: 13.5px; padding: 3px 0; }
.foot-base { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-block: 14px 26px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.foot-base a { color: var(--muted); }
@media (max-width: 860px) { .foot-in { grid-template-columns: 1fr; } .foot-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 广告位 */
.ad { margin: 24px 0; min-height: 90px; text-align: center; overflow: hidden; }
.ad-label { display: block; font-size: 11px; color: var(--muted); text-align: left; margin-bottom: 4px; }
.ad-grid { grid-column: 1 / -1; margin: 4px 0; }
.ad-side { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 12px; min-height: 250px; }
.ad-preview { display: grid; place-items: center; min-height: 120px; border: 2px dashed #F3B26B; border-radius: var(--r); color: var(--amber); background: var(--amber-t); font-size: 13px; }
.ad-side.ad-preview { min-height: 250px; }

/* 网站地图 */
.sm-sec { padding-block: 14px; }
.sm-sec h2 { font-size: 19px; margin-bottom: 10px; }
.sm-sec h3 { font-size: 15.5px; margin-bottom: 8px; padding-left: 10px; border-left: 3px solid var(--cat, var(--blue)); }
.sm-sec h3 a { color: var(--ink); }
.sm-sec h3 small { color: var(--muted); font-weight: 400; font-size: 12px; }
.sm-cols { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px 28px; padding-bottom: 6px; }
.sm-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; font-size: 13.5px; }
.sm-list a { color: var(--ink-2); }
.sm-list a:hover { color: var(--blue); }
.sm-wide { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 4px 28px; }

/* Logo */
.brand .brand-mark { display: block; width: 36px; height: 36px; flex: none; }
.foot-brand .brand-mark { width: 32px; height: 32px; }