/* ═══════════════════════════════════════════════════════════════
   FDEChina Design System v2 ·「纸墨朱」
   依据：docs/归档/03-专业站升级/design/design-notes.md v1.0 + design/*.html
   约束：原生 CSS、无构建、无外部字体/图片；交互默认零 JS（仅搜索页）。
   ═══════════════════════════════════════════════════════════════ */

/* ── tokens（design-notes §3-§5）────────────────────────────── */
:root{
  --ink:#1c2024; --ink-2:#454c53; --ink-3:#8a9199;
  --paper:#fff; --page:#f6f6f4; --soft:#fafaf7;
  --line:#e6e5e0; --line-strong:#d2d1ca; --ink-deep:#21252b;
  --accent:#c8382d; --accent-dark:#a32c22; --accent-soft:#fbf0ee; --accent-line:#efd3ce;
  --link:#2c5e96; --link-soft:#eef3f8; --link-line:#d8e2ec;
  --ok:#2f7d46; --ok-soft:#e9f3ec;
  --warn:#9c6b1b; --warn-soft:#faf3e2;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --serif:"Songti SC","STSong","Noto Serif CJK SC","SimSun",serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--ink);font:15px/1.75 var(--sans)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
img{max-width:100%}
.wrap{width:min(1180px,calc(100% - 48px));margin:auto}

/* ── topbar（页面最顶端 3px 朱红品牌色带）───────────────────── */
.topbar{background:var(--ink-deep);color:#aeb4ba;font-size:12px;border-top:3px solid var(--accent)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:34px}
.topbar a{margin-left:20px;transition:color .15s}
.topbar a:hover{color:#fff}

/* ── header ─────────────────────────────────────────────────── */
.site-head{background:var(--paper);border-bottom:1px solid var(--line)}
.head-main{height:84px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:44px;height:44px;background:var(--ink);border-radius:6px;color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;letter-spacing:.5px;position:relative;overflow:hidden}
.brand-mark i{position:absolute;right:-3px;top:-3px;width:15px;height:15px;background:var(--accent);transform:skewX(-18deg)}
.brand-word{line-height:1.15}
.brand-word b{font-size:25px;font-weight:800;letter-spacing:.5px}
.brand-word b em{color:var(--accent);font-style:normal}
.brand-word small{display:block;color:var(--ink-3);font-size:10px;letter-spacing:1.25px;font-weight:600;margin-top:3px}
.head-search{margin-left:auto;display:flex;width:340px;height:40px;border:1px solid var(--line-strong);border-radius:4px;overflow:hidden;background:#fff}
.head-search:focus-within{outline:2px solid var(--link);outline-offset:-1px}
.head-search input{min-width:0;flex:1;border:0;outline:0;padding:0 14px;color:var(--ink);background:transparent}
.head-search input::placeholder{color:var(--ink-3)}
.head-search button{width:44px;border:0;background:var(--ink);color:#fff;font-size:16px;cursor:pointer}
.head-search button:hover{background:#000}

/* 按钮（design-notes §6.1）*/
.btn{display:inline-flex;align-items:center;gap:6px;border-radius:4px;padding:9px 16px;font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--link);border-color:var(--link)}

/* ── nav（桌面横排；移动端 <details> 折叠，零 JS）────────────── */
.nav{background:var(--paper);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between}
.nav-links{display:flex;gap:2px;min-height:50px;align-items:stretch}
.nav-links a{display:flex;align-items:center;padding:0 18px;color:var(--ink-2);font-size:15px;border-bottom:3px solid transparent;white-space:nowrap}
.nav-links a:hover{color:var(--link)}
.nav-links a.active{color:var(--ink);font-weight:700;border-bottom-color:var(--accent)}
.nav-links a.active::before{content:"";display:inline-block;width:7px;height:14px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;margin-right:8px}
.nav-fold{display:none}
.nav-cta{margin-left:16px;padding:7px 14px;font-size:13px}

/* ── ticker（36px 细条，朱红左栏线）────────────────────────── */
.ticker{background:var(--accent-soft);border-bottom:1px solid var(--accent-line)}
.ticker .wrap{display:flex;align-items:center;gap:10px;height:38px;font-size:13px;color:var(--ink-2);white-space:nowrap;overflow:hidden}
.ticker .tick{width:7px;height:13px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;flex-shrink:0}
.ticker strong{color:var(--accent-dark)}
.ticker a{margin-left:auto;color:var(--link);font-weight:600}

/* ── layout primitives ─────────────────────────────────────── */
.page{padding:32px 0 56px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:6px}
.section{margin-bottom:32px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;padding:18px 24px 14px;border-bottom:1px solid var(--line)}
.section-head h2{margin:0;font-size:20px;line-height:1.4;display:flex;align-items:center;gap:9px}
.section-head h2::before{content:"";width:7px;height:16px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;flex-shrink:0}
.section-head .sub{color:var(--ink-3);font-size:13px;font-weight:400;margin-left:10px}
.more{color:var(--ink-3);font-size:13px}
.more:hover{color:var(--link)}

/* ── hero（墨底编辑宣言 + 定义卡，ia-v2 §4 #2）──────────────── */
.hero{background:var(--ink-deep);color:#fff;border-radius:8px;overflow:hidden;position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;padding:48px}
.hero::after{content:"FDE";position:absolute;right:-10px;bottom:-58px;font-size:170px;font-weight:900;letter-spacing:-4px;color:rgba(255,255,255,.045);pointer-events:none}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:4px 12px;font-size:12px;color:#c9ced4}
.hero-kicker i{width:7px;height:12px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.hero h1{font-size:34px;line-height:1.35;margin:20px 0 14px;position:relative}
.hero h1 em{font-style:normal;color:#f0b9b3}
.hero p{position:relative;color:#b6bcc2;max-width:480px;margin:0 0 28px;font-size:16px}
.hero-cta{position:relative;display:flex;gap:12px;flex-wrap:wrap}
.hero-cta .btn-accent{padding:11px 22px;font-size:15px}
.hero-cta .btn-ghost{background:transparent;color:#d5d9dd;border-color:rgba(255,255,255,.3)}
.hero-cta .btn-ghost:hover{color:#fff;border-color:#fff}
.hero-def{position:relative;align-self:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:6px;padding:24px}
.hero-def .en{color:#8f969d;font-size:12px;letter-spacing:1px}
.hero-def h2{margin:6px 0 10px;font-size:20px}
.hero-def h2 i{width:8px;height:15px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;display:inline-block;margin-right:8px}
.hero-def p{color:#b6bcc2;font-size:13.5px;line-height:1.8;margin:0}

/* ── 资源卡（feed/portal，形式字块替代旧渐变缩略图）──────────── */
.feed,.portal-list{padding:0 24px}
.resource-card{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.resource-card:last-child{border-bottom:0}
.fmt{width:64px;height:64px;border-radius:4px;background:var(--soft);border:1px solid var(--line);display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--ink-2)}
.resource-card:hover{box-shadow:0 6px 20px rgba(28,32,36,.08)}
.resource-card:hover .fmt{background:var(--link-soft);border-color:var(--link-line);color:var(--link)}
.resource-card:hover h3{color:var(--link)}
.resource-card h3{margin:0 0 4px;font-size:16px;line-height:1.5;font-weight:700;transition:color .15s}
.resource-card .summary{display:block;color:var(--ink-3);font-size:13px;line-height:1.7;margin:0 0 8px}
.card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--ink-3)}
.card-meta .dot{color:var(--line-strong)}
.resource-card--portal{padding:22px 0}

/* ── 徽章（design-notes §6.6）───────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:1px 9px;font-size:12px;line-height:1.7;border:1px solid var(--line);background:var(--soft);color:var(--ink-2);white-space:nowrap}
.badge i{width:6px;height:6px;border-radius:1px;transform:skewX(-18deg);flex-shrink:0}
.badge--insight{background:var(--link-soft);border-color:var(--link-line);color:var(--link)} .badge--insight i{background:var(--link)}
.badge--enterprise{background:#f8f1e8;border-color:#eadfcd;color:#7a4a20} .badge--enterprise i{background:#8c5a2b}
.badge--practice{background:var(--ok-soft);border-color:#d3e5d9;color:#1f5e34} .badge--practice i{background:#2f7d46}
.badge--career{background:#f3eef6;border-color:#e2d7ea;color:#5e3a70} .badge--career i{background:#7a4e8f}
.badge--ecosystem{background:#e8f2f2;border-color:#d2e4e3;color:#1f5c5a} .badge--ecosystem i{background:#2e7d7b}
.badge--mode-full{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent-dark)}
.badge--mode-link{background:var(--link-soft);border-color:var(--link-line);color:var(--link)}
.badge--mode-original{background:var(--ink);border-color:var(--ink);color:#fff}
.badge--featured{background:var(--ink);border-color:var(--ink);color:#fff}
.badge--warn{background:var(--warn-soft);border-color:#ecdcb8;color:#7a5a12}
.badge--fmt{background:var(--soft)}

/* ── 编辑精选（ia-v2 §4 #3）────────────────────────────────── */
.featured{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:20px 24px}
.feat-card{border:1px solid var(--line);border-radius:6px;padding:20px;display:flex;flex-direction:column;gap:8px;background:var(--soft)}
.feat-card:hover{background:#fff;border-color:var(--line-strong);box-shadow:0 6px 20px rgba(28,32,36,.08)}
.feat-card h3{margin:2px 0;font-size:17px;line-height:1.5}
.feat-card:hover h3{color:var(--link)}
.feat-card p{margin:0;color:var(--ink-3);font-size:13px;line-height:1.7}
.feat-head{display:flex;align-items:center;gap:8px}

/* ── 今日速览（标题流）─────────────────────────────────────── */
.brief-list{padding:6px 24px}
.brief{display:block;padding:14px 0;border-bottom:1px dashed var(--line)}
.brief:last-child{border-bottom:0}
.brief .fmt-inline{color:var(--link);font-size:12px;font-weight:600}
.brief strong{display:block;font-size:15px;line-height:1.55;margin:3px 0;font-weight:600}
.brief:hover strong{color:var(--link)}
.brief small{color:var(--ink-3);font-size:12px}

/* ── 频道卡（首页分类浏览）─────────────────────────────────── */
.category-grid{display:grid;grid-template-columns:repeat(5,1fr)}
.category-card{padding:22px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:4px;position:relative}
.category-card:last-child{border-right:0}
.category-card b{display:flex;align-items:center;gap:6px;color:var(--ink-3);font-size:12px;font-weight:600;letter-spacing:.5px}
.category-card b i{width:8px;height:8px;border-radius:2px;transform:skewX(-18deg)}
.category-card strong{font-size:17px;margin-top:6px}
.category-card span{color:var(--ink-3);font-size:12.5px;line-height:1.6;margin-top:2px}
.category-card:hover strong{color:var(--link)}
.category-card:hover{background:var(--soft)}

/* ── aside（热门主题 / 活跃来源 / notice）──────────────────── */
.side-panel{padding:20px 22px}
.side-panel h3{margin:0 0 14px;font-size:16px;display:flex;align-items:center;gap:8px}
.side-panel h3::before{content:"";width:6px;height:14px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.side-panel p{color:var(--ink-2);font-size:13px;line-height:1.8;margin:0}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink-2);padding:4px 11px;font-size:12.5px}
.tag em{font-style:normal;color:var(--ink-3);margin-left:3px;font-size:11px}
.tag:hover{border-color:var(--accent);color:var(--accent-dark)}
.source-list{list-style:none;margin:0;padding:0}
.source-list li{display:flex;justify-content:space-between;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.source-list li:last-child{border-bottom:0}
.source-list a:hover{color:var(--link)}
.source-list em{font-style:normal;color:var(--ink-3);font-size:12px;font-family:var(--mono)}
.src-note{color:var(--ink-3);font-size:12px;margin:12px 0 0;line-height:1.6}
.notice{padding:20px 22px;background:var(--link-soft);border:1px solid var(--link-line);border-left:3px solid var(--accent);border-radius:6px;margin-bottom:24px}
.notice b{font-size:15px}
.notice p{color:var(--ink-2);font-size:13px;margin:8px 0 14px;line-height:1.7}
.notice .btn-accent{border:0;cursor:pointer}

/* ── 面包屑（ia-v2 D7 三级；.crumb 为频道/归档页两级变体，design channel.html）── */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);padding:20px 0 16px;flex-wrap:wrap}
.breadcrumb a{color:var(--link)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .here{color:var(--ink-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);padding:18px 0 0;flex-wrap:wrap}
.crumb a:hover{color:var(--link)}
.crumb .sep{color:var(--line-strong)}
.crumb .here{color:var(--ink-2)}

/* ── 频道头 / 重点主题 / 频道布局（design-notes §6，ia-v2 §3.4）*/
.channel-head{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:28px 32px;margin:20px 0 24px}
.channel-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--accent-dark);letter-spacing:.5px}
.channel-eyebrow i{width:7px;height:13px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.channel-head h1{margin:8px 0 10px;font-size:30px;line-height:1.35}
.channel-head .desc{margin:0;color:var(--ink-2);font-size:14.5px;max-width:680px}
.channel-stats{display:flex;gap:20px;margin-top:14px;color:var(--ink-3);font-size:12.5px;flex-wrap:wrap}
.channel-stats b{color:var(--ink);font-weight:700}
.topic-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.topic-pills .tp-label{align-self:center;color:var(--ink-3);font-size:13px;display:inline-flex;align-items:center;gap:7px}
.topic-pills .tp-label::before{content:"";width:6px;height:13px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.pill{border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:6px 14px;font-size:13.5px;color:var(--ink-2)}
.pill em{font-style:normal;color:var(--ink-3);font-size:11.5px;margin-left:4px}
.pill:hover{border-color:var(--accent);color:var(--accent-dark)}
.channel-layout{display:grid;grid-template-columns:216px minmax(0,1fr);gap:28px;align-items:start;padding-bottom:48px}
.filters{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:20px}
.filter-group{padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.filter-group:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.filter-group h3{margin:0 0 10px;font-size:14px}
.filter-option{display:block;color:var(--ink-2);padding:5px 0;font-size:13.5px}
.filter-option:hover{color:var(--link)}
.filter-option.active{color:var(--accent-dark);font-weight:700;display:flex;align-items:center}
.filter-option.active::before{content:"";width:6px;height:12px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;margin-right:7px}
.filter-option em{font-style:normal;color:var(--ink-3);font-size:11.5px;margin-left:5px}

/* ── 列表头 / 分页 ─────────────────────────────────────────── */
.list-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:16px 24px;border-bottom:1px solid var(--line);color:var(--ink-3);font-size:12.5px;flex-wrap:wrap}
.pagination{padding:20px 24px}
.pagination .nav-links{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.pagination .page-numbers{min-width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:4px;font-size:13.5px;color:var(--ink-2);background:#fff;padding:0 8px}
.pagination .page-numbers.current{background:var(--ink);color:#fff;border-color:var(--ink)}
.pagination a.page-numbers:hover{border-color:var(--link);color:var(--link)}

/* ── 详情页（design detail.html）───────────────────────────── */
.detail{padding:36px 40px 44px}
.detail .badges{display:flex;gap:8px;flex-wrap:wrap}
.detail h1{font-size:30px;line-height:1.4;margin:14px 0 12px}
.byline{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-3);padding-bottom:22px;border-bottom:1px solid var(--line)}
.byline .dot{color:var(--line-strong)}
.byline b{color:var(--ink-2);font-weight:600}
.summary-block{margin:22px 0 0;padding:16px 20px;background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--link);border-radius:0 6px 6px 0;color:var(--ink-2);line-height:1.9;font-size:14.5px}

/* 编辑说（全文转载核心资产：衬线 + 朱红栏线，design-notes §4.2/§6）。
   两种来源同一套皮：① 流水线写进正文的 blockquote.fde-editor-say；
   ② resource 的 _fde_editor_note meta 输出的 .editor-say 容器。 */
.editor-say,
article .fde-editor-say{margin:26px 0 0;padding:22px 24px;background:linear-gradient(180deg,var(--accent-soft),#fff 70%);border:1px solid var(--accent-line);border-left:4px solid var(--accent);border-radius:6px}
.editor-say-head{display:flex;align-items:center;gap:9px;margin-bottom:12px}
.editor-say-head i{width:7px;height:15px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.editor-say-head b{font-size:16px;letter-spacing:2px}
.editor-say-head .role{color:var(--ink-3);font-size:12px;margin-left:4px}
.editor-say p,
article .fde-editor-say p{font-family:var(--serif);font-size:17px;line-height:2;color:var(--ink);margin:0 0 12px}
.editor-say p:last-of-type,
article .fde-editor-say p:last-of-type{margin-bottom:0}
.editor-say .advice{padding:12px 16px;background:#fff;border:1px dashed var(--accent-line);border-radius:4px;font-size:15px}
.editor-say .advice b{font-family:var(--sans);font-size:12.5px;color:var(--accent-dark);display:block;margin-bottom:4px;letter-spacing:1px}
article .fde-editor-say cite{display:block;margin-top:10px;font-style:normal;font-family:var(--sans);font-size:12px;color:var(--ink-3);text-align:right}

/* 全文正文 */
.article-body{margin-top:28px}
.article-body h2{font-size:21px;line-height:1.5;margin:30px 0 12px}
.article-body p{margin:0 0 16px;line-height:1.95;color:var(--ink)}
.article-body blockquote{margin:20px 0;padding:12px 18px;border-left:3px solid var(--line-strong);background:var(--soft);color:var(--ink-2);border-radius:0 4px 4px 0}
.article-body blockquote.fde-editor-say{border-left:4px solid var(--accent);background:linear-gradient(180deg,var(--accent-soft),#fff 70%);border:1px solid var(--accent-line);color:var(--ink)}
.article-body ul{padding-left:22px;margin:0 0 16px}
.article-body li{margin-bottom:8px;line-height:1.85}
.article-body img{max-width:100%;border-radius:6px;border:1px solid var(--line)}
.fde-article-image{margin:18px 0;text-align:center}
.fde-article-image img{max-width:100%;height:auto;border-radius:6px}
.figure-note{color:var(--ink-3);font-size:12px;text-align:center;margin:6px 0 0}
.copyright-line{color:var(--ink-3);font-size:12.5px;margin-top:24px;padding-top:16px;border-top:1px dashed var(--line)}
.detail-note{margin:24px 0 0;padding-top:20px;border-top:1px dashed var(--line);color:var(--ink-2);font-size:13px;line-height:1.8}
.detail-note a{color:var(--link)}

/* 出处与致谢 */
.origin{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;margin-top:28px;background:var(--soft);border:1px solid var(--line);border-radius:6px;flex-wrap:wrap}
.origin b{display:block;font-size:14.5px}
.origin small{color:var(--ink-3);display:block;margin-top:3px;font-size:12.5px;line-height:1.7}
.origin .btn{padding:8px 14px;font-size:13px}

/* 相关内容 */
.related{margin-top:32px;border-top:1px solid var(--line);padding-top:22px}
.related h3{margin:0 0 8px;font-size:17px;display:flex;align-items:center;gap:8px}
.related h3::before{content:"";width:6px;height:14px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.related a{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.related a:last-child{border-bottom:0}
.related a:hover{color:var(--link)}
.related a small{color:var(--ink-3);flex-shrink:0}
.mini-list{list-style:none;margin:0;padding:0}
.mini-list li{border-bottom:1px dashed var(--line)}
.mini-list li:last-child{border-bottom:0}
.mini-list a{display:block;padding:10px 0;font-size:13.5px;line-height:1.6}
.mini-list a:hover{color:var(--link)}
.mini-list small{display:block;color:var(--ink-3);font-size:11.5px;margin-top:2px}

/* ── 常规页面（about/copyright/recommend/404）──────────────── */
.page-title{padding:23px 25px;background:#fff;border:1px solid var(--line);border-radius:6px;margin-bottom:18px}
.page-title h1{margin:0 0 6px;font-size:26px}
.page-title p{margin:0;color:var(--ink-3)}
.content-page{max-width:820px}
.content-page h2{font-size:21px;margin:30px 0 12px}
.content-page p{line-height:1.95}

/* 内容线索表单（fdechina-core shortcode）*/
.fdechina-recommend-form{display:grid;gap:16px;max-width:620px;margin-top:20px}
.fdechina-recommend-form label{display:grid;gap:6px;color:var(--ink-2);font-size:13.5px;font-weight:600}
.fdechina-recommend-form input,.fdechina-recommend-form textarea,.fdechina-recommend-form select{border:1px solid var(--line-strong);border-radius:4px;padding:10px;outline:0;background:#fff;font-weight:400}
.fdechina-recommend-form input:focus,.fdechina-recommend-form textarea:focus,.fdechina-recommend-form select:focus{outline:2px solid var(--link);outline-offset:-1px}
.fdechina-recommend-form button{border:0;background:var(--accent);color:#fff;padding:10px 18px;border-radius:4px;font-weight:600;cursor:pointer;justify-self:start}
.fdechina-recommend-form button:hover{background:var(--accent-dark)}
.fdechina-form-success{background:var(--ok-soft);border:1px solid #d3e5d9;border-left:3px solid var(--ok);padding:14px;margin:20px 0;color:#1f5e34;border-radius:0 6px 6px 0}

/* ── 搜索页（search.html 形态 + Pagefind UI 覆写层）─────────── */
.search-page{max-width:820px;margin:0 auto;padding:32px 0 56px}
.search-hero{margin-bottom:24px}
.search-hero h1{font-size:26px;margin:0 0 18px;display:flex;align-items:center;gap:9px}
.search-hero h1::before{content:"";width:7px;height:16px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.search-hint{color:var(--ink-3);font-size:12.5px;margin-top:10px}
.pagefind-ui .pagefind-ui__search-input{height:52px;border:1px solid var(--line-strong);border-radius:6px;font-size:16px;padding:0 18px;background:#fff;box-shadow:0 2px 8px rgba(28,32,36,.04)}
.pagefind-ui .pagefind-ui__search-input:focus{border-color:var(--link)}
.pagefind-ui .pagefind-ui__search-clear{color:var(--ink-3)}
.pagefind-ui .pagefind-ui__message{color:var(--ink-3);font-size:13px;padding:16px 0 4px;border-bottom:2px solid var(--ink)}
.pagefind-ui .pagefind-ui__results{padding:0;list-style:none}
.pagefind-ui .pagefind-ui__result{padding:20px 4px;border-bottom:1px solid var(--line)}
.pagefind-ui .pagefind-ui__result-title{font-size:17.5px;line-height:1.5;margin:0 0 5px}
.pagefind-ui .pagefind-ui__result-link:hover{color:var(--link);text-decoration:underline}
.pagefind-ui .pagefind-ui__result-excerpt{color:var(--ink-2);font-size:13.5px;line-height:1.75}
.pagefind-ui mark{background:var(--accent-soft);color:var(--accent-dark);padding:0 2px;border-radius:2px}
.pagefind-ui .pagefind-ui__button{width:100%;margin-top:20px;padding:12px;border:1px solid var(--line-strong);border-radius:4px;background:#fff;color:var(--ink-2);font-size:14px;cursor:pointer}
.pagefind-ui .pagefind-ui__button:hover{border-color:var(--link);color:var(--link)}

/* ── 空态（design-notes §6.9）──────────────────────────────── */
.empty{padding:36px 24px;background:var(--soft);border:1px solid var(--line);border-radius:6px;text-align:center;color:var(--ink-2);font-size:14px;margin:24px}
.empty b{display:block;font-size:15px;margin-bottom:6px}
.empty p{margin:0 0 4px;color:var(--ink-3);font-size:13px}
.empty a{color:var(--link);font-weight:600}

/* ── guide 常青页（guide.html）─────────────────────────────── */
.guide-head{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:32px 36px;margin:16px 0 28px}
.guide-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--accent-dark);letter-spacing:1px}
.guide-eyebrow i{width:7px;height:13px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.guide-head h1{margin:10px 0 12px;font-size:32px;line-height:1.35}
.guide-head .lede{margin:0;color:var(--ink-2);font-size:16px;max-width:640px}
.guide-meta{margin-top:16px;color:var(--ink-3);font-size:12.5px}
.prose{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:40px 48px;max-width:820px}
.prose h2{font-size:22px;line-height:1.5;margin:40px 0 14px;display:flex;align-items:center;gap:9px;scroll-margin-top:24px}
.prose h2:first-of-type{margin-top:0}
.prose h2::before{content:"";width:7px;height:16px;background:var(--accent);transform:skewX(-18deg);border-radius:1px;flex-shrink:0}
.prose h3{font-size:17px;margin:26px 0 10px}
.prose p{margin:0 0 16px;line-height:1.95}
.prose ul,.prose ol{padding-left:24px;margin:0 0 16px}
.prose li{margin-bottom:8px;line-height:1.85}
.prose strong{font-weight:700}
.prose blockquote{margin:20px 0;padding:14px 20px;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 4px 4px 0;color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;font-size:13.5px;margin:8px 0 18px}
.prose th{text-align:left;font-size:12.5px;color:var(--ink-3);border-bottom:2px solid var(--ink);padding:8px 12px;font-weight:600}
.prose td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7}
.prose td:first-child{font-weight:700;white-space:nowrap}
.guide-feats{max-width:820px;margin:28px 0 0;display:grid;gap:16px}
.guide-channels{max-width:820px;margin:20px 0 32px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gcat{border:1px solid var(--line);border-radius:6px;background:var(--paper);padding:16px 18px;display:flex;gap:12px;align-items:flex-start}
.gcat:hover{border-color:var(--line-strong);box-shadow:0 6px 20px rgba(28,32,36,.08)}
.gcat i{width:10px;height:10px;border-radius:2px;transform:skewX(-18deg);margin-top:7px;flex-shrink:0}
.gcat b{display:block;font-size:15px}
.gcat span{display:block;color:var(--ink-3);font-size:12.5px;margin-top:2px}
.gcat em{font-style:normal;color:var(--ink-3);font-size:11.5px;font-family:var(--mono);margin-left:auto}
.guide-cta{max-width:820px;margin:24px 0 56px;display:flex;gap:12px;flex-wrap:wrap}

/* ── footer（四组链接，ia-v2 §3.3）─────────────────────────── */
.footer{background:var(--ink-deep);color:#9aa1a8;padding:48px 0 40px;font-size:13px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer h4{color:#e6e8ea;font-size:14px;margin:0 0 12px}
.footer a{display:block;padding:3px 0;color:#9aa1a8}
.footer a:hover{color:#fff}
.footer-brand strong{color:#fff;font-size:20px;display:block;margin-bottom:8px}
.footer-brand strong em{color:var(--accent);font-style:normal}
.footer-brand p{margin:0;line-height:1.8;max-width:300px}
.footer-bottom{border-top:1px solid #3a3f45;margin-top:36px;padding-top:20px;color:#6d747b;font-size:12px}

/* ── 响应式（design-notes §7：侧栏折叠到主栏下方，不 display:none）*/
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;padding:36px;gap:28px}
  .layout{grid-template-columns:minmax(0,1fr)}
  .aside{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
  .category-grid{grid-template-columns:repeat(3,1fr)}
  .category-card:nth-child(3n){border-right:0}
  .category-card:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .featured{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .channel-layout{grid-template-columns:minmax(0,1fr)}
  .channel-layout > aside{min-width:0}
  .channel-layout > .panel{order:-1}
  .filters{display:flex;gap:16px;overflow-x:auto;padding:14px 18px}
  .filter-group{min-width:150px;border-bottom:0;border-right:1px solid var(--line);padding:0 16px 0 0;margin:0}
  .filter-group:last-child{border-right:0;margin-left:auto}
  .channel-layout .notice{margin:20px 0 0}
}
@media (max-width:860px){
  .head-search{width:auto;flex:1}
}
@media (max-width:720px){
  .wrap{width:calc(100% - 32px)}
  .topbar .wrap span:first-child{display:none}
  .topbar a{margin-left:14px}
  .head-main{height:auto;flex-wrap:wrap;gap:14px;padding:14px 0}
  .head-search{order:3;flex-basis:100%;margin-left:0}
  .head-main .btn-accent{margin-left:auto}
  .nav .wrap{justify-content:flex-start}
  .nav-desktop{display:none}
  .nav-fold{display:block;width:100%}
  .nav-fold summary{display:flex;align-items:center;gap:8px;list-style:none;cursor:pointer;padding:13px 0;font-size:14px;font-weight:600;color:var(--ink-2)}
  .nav-fold summary::-webkit-details-marker{display:none}
  .nav-fold summary::after{content:"▾";color:var(--ink-3)}
  .nav-fold[open] summary::after{content:"▴"}
  .nav-fold .nav-links{display:none}
  .nav-fold[open] .nav-links{display:flex;flex-direction:column;align-items:stretch;min-height:0;padding-bottom:8px}
  .nav-fold[open] .nav-links a{padding:10px 4px;border-bottom:1px solid var(--line)}
  .nav-fold[open] .nav-links a.active::before{margin-right:10px}
  .nav-cta{display:none}
  .hero h1{font-size:26px}
  .hero-grid{padding:26px 22px}
  .hero::after{font-size:110px}
  .category-grid{grid-template-columns:1fr 1fr}
  .category-card:nth-child(2n){border-right:0}
  .category-card:nth-child(-n+4){border-bottom:1px solid var(--line)}
  .resource-card{grid-template-columns:48px minmax(0,1fr);gap:12px}
  .fmt{width:48px;height:48px;font-size:11px}
  .feed,.brief-list,.portal-list{padding:0 16px}
  .section-head{flex-wrap:wrap;gap:4px}
  .aside{grid-template-columns:1fr}
  .channel-head{padding:22px 20px}
  .channel-head h1{font-size:25px}
  .detail{padding:22px 18px 30px}
  .detail h1{font-size:24px;line-height:1.45}
  .editor-say,article .fde-editor-say{padding:18px 16px}
  .editor-say p,article .fde-editor-say p{font-size:15.5px;line-height:1.95}
  .origin{align-items:flex-start;flex-direction:column}
  .guide-head{padding:24px 20px}
  .guide-head h1{font-size:25px}
  .prose{padding:24px 18px}
  .prose table{display:block;overflow-x:auto}
  .guide-channels{grid-template-columns:1fr}
  .search-page{padding:24px 0 44px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .category-grid{grid-template-columns:1fr}
  .category-card{border-right:0;border-bottom:1px solid var(--line)}
  .featured{padding:14px}
  .feed,.brief-list{padding:0 16px}
  .badge{white-space:normal}
}

/* ============================================================
   v0.3 R10 打磨（docs/fdechina/design-polish-v1.md §2/§3/§4）
   ============================================================ */

/* —— 全文页：阅读版式（§2.2）—— */
.detail .eyebrow{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--accent-dark);letter-spacing:.5px;margin:0 0 10px}
.detail .eyebrow::before{content:"";width:7px;height:13px;background:var(--accent);transform:skewX(-18deg);border-radius:1px}
.article-body{max-width:40em}
.article-body p{font-size:16.5px;line-height:2.0;margin:0 0 18px}
.article-body h2{font-size:22px;margin:40px 0 14px;padding-left:12px;border-left:4px solid var(--accent);border-radius:1px}
.article-body h3{font-size:18.5px;margin:32px 0 12px}
.article-body li{font-size:16px;line-height:1.95}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
@media (max-width:760px){
	.article-body p{font-size:15.5px;line-height:1.9}
	.article-body h2{font-size:20px}
}

/* —— 编辑说导读卡：标签补全 + 克制底色（§2.3）—— */
article .fde-editor-say{background:var(--accent-soft)}
article .fde-editor-say::before{content:"编辑说";display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:12.5px;font-weight:700;letter-spacing:2px;color:var(--accent-dark);margin-bottom:10px}

/* —— 资源卡导读页：来源信息卡（§3.2）—— */
.source-card{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.source-card .origin-actions{display:flex;gap:10px;flex-wrap:wrap}

/* —— 列表卡：编辑说摘句层（§4.1 ④）—— */
.card-say{display:block;margin:8px 0 0;padding-left:10px;border-left:3px solid var(--accent);font-family:var(--serif);font-size:13.5px;line-height:1.75;color:var(--ink-2)}
.card-say b{font-family:var(--sans);font-size:11px;font-weight:700;color:var(--accent-dark);letter-spacing:1.5px;margin-right:6px}

/* —— 页脚联系行（§6）—— */
.footer-contact{margin-top:6px;font-size:13px;color:var(--ink-3)}
.footer-contact a{color:var(--ink-2)}

/* —— 404 页（D-13）—— */
.fde-404-code{font-family:var(--mono);font-size:56px;font-weight:700;color:var(--accent);letter-spacing:6px;margin:0 0 6px}
.fde-404-channels{margin-top:14px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;font-size:14px}

/* —— V2.0 R12.3：首页新模块（总纲 §12 A/C/F/G/H/I）+ 专题页 + 指南目录 —— */
.hero h1{font-size:44px;margin:8px 0 10px;letter-spacing:1px}
.hero .hero-sub{font-size:22px;line-height:1.5;font-weight:600;margin:0 0 12px;font-family:var(--serif)}
.hero-def-note{margin-top:10px;padding-top:10px;border-top:1px dashed rgba(255,255,255,.14);font-size:12.5px!important;color:#9aa1a8!important}
.newcomer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:6px 24px 18px}
.newcomer-grid a{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:6px;padding:16px;background:var(--soft);color:var(--ink);font-weight:600;font-size:14px;line-height:1.5;transition:border-color .15s}
.newcomer-grid a:hover{border-color:var(--accent)}
.newcomer-grid b{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:1px}
.knowledge-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px;padding:6px 24px}
.knowledge-item{display:flex;align-items:baseline;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line);color:var(--ink)}
.knowledge-item strong{font-size:14.5px;font-weight:600;line-height:1.6}
.knowledge-item small{margin-left:auto;color:var(--ink-3);font-size:12px;white-space:nowrap}
.knowledge-item .badge{flex:none;font-size:11px;color:var(--accent-dark);background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:3px;padding:1px 7px;font-weight:600}
.latest-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0 28px;padding:6px 24px}
.latest-group h3{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--ink-2);margin:8px 0 2px;padding-left:9px;border-left:3px solid var(--accent)}
.latest-item{display:block;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--ink)}
.latest-item strong{display:block;font-size:13.5px;font-weight:600;line-height:1.6}
.latest-item small{color:var(--ink-3);font-size:12px}
.data-assets .asset-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;padding:8px 24px 18px}
.asset{border:1px solid var(--line);border-radius:6px;background:var(--soft);padding:16px;display:flex;flex-direction:column;gap:2px}
.asset b{font-family:var(--mono);font-size:28px;color:var(--accent)}
.asset span{font-size:13px;color:var(--ink-2)}
.source-note p{padding:2px 24px 14px;color:var(--ink-2);font-size:14px}
.topic-intro .prose{padding:4px 24px 10px}
.guide-toc{border:1px solid var(--line);border-radius:6px;background:var(--soft);padding:16px 22px;margin:14px 0 8px}
.guide-toc ol{margin:0;padding-left:20px;columns:2;column-gap:36px;font-size:14px}
.guide-toc li{margin:3px 0;break-inside:avoid}
.guide-note{font-size:13px;color:var(--ink-3);background:var(--soft);border-left:3px solid var(--line-strong);padding:8px 12px;border-radius:0 4px 4px 0}
@media (max-width:900px){.newcomer-grid{grid-template-columns:repeat(2,1fr)}.knowledge-list{grid-template-columns:1fr}.guide-toc ol{columns:1}}