/* KneeDaily 公开网站样式（2026-09-11 整体改版）
   设计规则：一套版式令牌贯穿所有页面；宋体只用于标题与书名，界面与正文用系统黑体；
   浅色页面只用一个动作色（深绿），深色区块只用一个强调色（铜金）；
   同一网格、同一节距、同一组卡片与按钮，不做局部装饰。 */

:root{
  --paper:#f7f5f0;--paper-2:#efebe2;--card:#fdfcf9;
  --ink:#152129;--ink-2:#2f3d45;--muted:#66727a;--faint:#98a2a8;
  --line:#dcd7cc;--line-strong:#c4bdaf;
  --navy:#0c1c28;--navy-2:#13273a;--on-navy:#f4f0e7;--on-navy-muted:#a9b3b8;--on-navy-line:rgba(255,255,255,.14);
  --gold:#cba16a;--gold-2:#e0ba85;--gold-ink:#8a6127;
  --green:#0d665f;--green-2:#0a534d;--green-soft:#e7efe9;
  --serif:"Songti SC",STSong,"Noto Serif CJK SC","Source Han Serif SC","Noto Serif SC",Georgia,SimSun,serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --reader-font:17px;
  color-scheme:light;
  font-family:var(--sans);color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
*{box-sizing:border-box}
body{margin:0;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button,a,input{touch-action:manipulation}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.45}
a,button,input{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:4px}
.dark-intro a:focus-visible,.on-dark a:focus-visible,.app-band a:focus-visible{outline-color:var(--gold)}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{font-family:var(--serif);font-synthesis:none;font-weight:600;letter-spacing:.01em}
::selection{background:#d9e6df}
.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
[hidden]{display:none!important}
.skip-link{position:fixed;z-index:100;top:-80px;left:20px;padding:12px;background:white}
.skip-link:focus{top:10px}

/* ---------- 通用元件 ---------- */
.eyebrow{font-family:var(--sans);font-size:11px;letter-spacing:.18em;font-weight:600;text-transform:uppercase;color:var(--green);margin:0 0 20px}
.dark-intro .eyebrow,.on-dark .eyebrow{color:var(--gold)}
.button{display:inline-flex;gap:10px;align-items:center;justify-content:center;padding:0 24px;min-height:48px;font-size:15px;font-weight:500;line-height:1;border-radius:3px;border:1px solid transparent;white-space:nowrap;transition:background .18s,border-color .18s,color .18s}
.button span{color:inherit}
.button-copper{background:var(--gold);color:#17212a}
.button-copper:hover{background:var(--gold-2)}
.button-green{background:var(--green);color:#fff}
.button-green:hover{background:var(--green-2)}
.button-outline{border-color:var(--line-strong);color:var(--ink)}
.button-outline:hover{border-color:var(--ink)}
.button-outline-dark{border-color:rgba(255,255,255,.28);color:var(--on-navy)}
.button-outline-dark:hover{border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.06)}
.text-link{color:var(--green);font-size:14px;font-weight:500}
.text-link:hover{color:var(--green-2)}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);margin-right:8px;vertical-align:2px}
.empty-state{color:var(--muted);font-size:15px;padding:28px 0 32px;border-top:1px solid var(--line);line-height:1.8}

/* ---------- 页头 ---------- */
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}
.header-inner{height:84px;display:flex;align-items:center;gap:48px}
.wordmark{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:22px;letter-spacing:0;font-weight:600;white-space:nowrap}
.brand-mark{font-family:var(--serif);background:var(--navy);color:var(--gold);width:34px;height:36px;display:inline-flex;align-items:center;justify-content:center;font-size:21px;font-weight:500}
.brand-mark span{color:inherit}
.on-dark .brand-mark{background:var(--gold);color:var(--navy)}
.home-page .site-header{border-bottom:0}
.header-inner>nav{display:flex;align-items:center;gap:34px;font-size:15px;flex:1;white-space:nowrap}
.header-inner nav a{padding:10px 0;color:var(--muted);border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.header-inner nav a:hover{color:var(--ink)}
.header-inner nav a[aria-current]{color:var(--ink);border-bottom-color:var(--ink)}
.app-link{font-size:13px;font-weight:500;white-space:nowrap;padding:10px 18px;border:1px solid var(--line-strong);border-radius:999px;transition:border-color .18s}
.app-link:hover{border-color:var(--ink)}
.app-link span{margin-left:8px;color:var(--gold-ink)}
.on-dark{background:var(--navy);color:var(--on-navy)}
.on-dark nav a{color:var(--on-navy-muted)}
.on-dark nav a:hover{color:var(--on-navy)}
.on-dark nav a[aria-current]{color:var(--on-navy);border-bottom-color:var(--gold)}
.on-dark .app-link{border-color:rgba(255,255,255,.3);color:var(--on-navy)}
.on-dark .app-link:hover{border-color:var(--gold)}
.on-dark .app-link span{color:var(--gold)}

/* ---------- 首页：主张与目录卡 ---------- */
.dark-intro{background:var(--navy);color:var(--on-navy)}
.home-hero{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:72px;align-items:center;padding:64px 0 72px}
.home-hero-copy{display:flex;flex-direction:column;align-items:flex-start}
.home-hero h1{font-size:56px;line-height:1.2;font-weight:600;color:var(--on-navy);margin:0 0 26px}
.home-hero h1 .phrase{display:inline-block;white-space:nowrap}
.home-hero-lede{font-size:17px;line-height:1.8;color:var(--on-navy-muted);max-width:30em;margin:0 0 36px}
.home-hero-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.home-byline{display:flex;align-items:center;gap:12px;margin:44px 0 0;font-size:13px;line-height:1.5;color:var(--on-navy-muted)}
.home-hero-portrait{width:40px;height:40px;border-radius:50%;object-fit:cover;object-position:50% 25%;outline:1px solid rgba(203,161,106,.55);outline-offset:2px;flex:none}
.home-byline b{font-family:var(--serif);font-size:15px;font-weight:600;color:var(--on-navy)}
.home-byline a{color:var(--gold-2);white-space:nowrap}
.catalog-card{position:relative;background:var(--navy-2);color:var(--on-navy);padding:30px 32px 24px;box-shadow:0 24px 48px -24px rgba(0,0,0,.3)}
.catalog-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--gold)}
.catalog-card-head{display:flex;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--on-navy-muted);margin:0 0 12px}
.part-list{list-style:none;margin:0;padding:0}
.part-row{display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:14px;align-items:baseline;padding:12px 0;border-top:1px solid var(--on-navy-line)}
.part-row .num{font-family:var(--serif);font-size:13px;color:var(--gold);font-variant-numeric:tabular-nums}
.part-row .name{font-family:var(--serif);font-size:17px;line-height:1.45}
.part-row small{font-size:12px;color:var(--on-navy-muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.part-row.available .name{font-weight:600}
.part-row.available small{color:var(--gold);font-weight:600}
.catalog-card-published{border-top:1px solid var(--on-navy-line);margin-top:2px;padding-top:14px}
.catalog-card-label{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--gold);margin:0 0 4px}
.catalog-card-published a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:baseline;padding:9px 0;font-size:14px;line-height:1.55;color:var(--on-navy)}
.catalog-card-published a+a{border-top:1px solid var(--on-navy-line)}
.catalog-card-published .num{font-size:12px;font-weight:600;color:var(--gold);white-space:nowrap;letter-spacing:.04em}
.catalog-card-published .arrow{color:var(--gold);transition:transform .18s}
.catalog-card-published a:hover .name{color:var(--gold-2)}
.catalog-card-published a:hover .arrow{transform:translateX(3px)}
.catalog-card-published .more{display:block;font-size:13px;color:var(--gold);padding:8px 0 0}
.catalog-card-foot{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:14px 0 0;padding-top:14px;border-top:1px solid var(--on-navy-line);font-size:12px;letter-spacing:.03em;color:var(--on-navy-muted)}
.catalog-card-foot a{color:var(--gold);font-weight:500;white-space:nowrap}
.home-proof{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;border-top:1px solid var(--on-navy-line);padding:32px 0 44px}
.home-proof>div{padding-left:18px;border-left:1px solid var(--on-navy-line)}
.home-proof b{display:block;font-family:var(--serif);font-size:30px;font-weight:500;line-height:1.1;color:var(--on-navy);font-variant-numeric:tabular-nums lining-nums}
.home-proof span{display:block;margin-top:8px;font-size:12px;letter-spacing:.05em;line-height:1.6;color:var(--on-navy-muted)}

/* ---------- 首页：分区 ---------- */
.home-section{padding:96px 0;border-bottom:1px solid var(--line)}
.home-recent{border-bottom:0}
.sec-no{font-family:var(--serif);font-size:13px;letter-spacing:.14em;color:var(--gold-ink);margin:0 0 12px}
.section-title{font-size:34px;line-height:1.25;margin:0}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin:0 0 36px}
.section-heading h2{margin:0}
.section-heading>a,.section-link{font-size:14px;font-weight:500;color:var(--green);white-space:nowrap;padding-bottom:6px}
.section-heading>a span{margin-left:6px}
.section-lede{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:40em;margin:0 0 40px}
.published-grid,.chapter-card-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.chapter-card,.published-card{display:flex;flex-direction:column;gap:14px;background:var(--card);border:1px solid var(--line);padding:30px 30px 28px;transition:border-color .18s,box-shadow .18s}
.chapter-card:hover,.published-card:hover{border-color:var(--green);box-shadow:0 14px 36px rgba(21,33,41,.08)}
.chapter-label{font-size:12px;letter-spacing:.06em;font-weight:600;color:var(--green);margin:0}
.chapter-card h3,.published-card h3{font-size:23px;line-height:1.45;margin:0}
.chapter-card-meta{font-size:12.5px;letter-spacing:.02em;line-height:1.7;color:var(--muted);margin:0}
.chapter-card .text-link,.published-card .button{margin-top:auto;align-self:flex-start}
.chapter-card .text-link{padding-top:6px}
.home-guide{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}
.home-guide>div{border-top:1px solid var(--line-strong);padding-top:22px}
.home-guide h3{font-size:22px;margin:0 0 12px}
.home-guide p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0 0 18px}
.home-guide small{display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--faint);padding:5px 12px;border:1px solid var(--line);border-radius:999px}
.home-guide small a{color:var(--green)}
.home-guide small:has(a){border-color:#bfd3c9}
.insights-heading{margin-top:72px}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 32px}
.post-card{border-bottom:1px solid var(--line);position:relative;min-width:0}
.post-card>a{display:block;padding-bottom:28px;height:100%}
.post-cover{aspect-ratio:1.65;overflow:hidden;background:var(--paper-2);margin-bottom:22px}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.post-card a:hover img{transform:scale(1.025)}
.post-card-meta{display:flex;gap:12px;font-size:12px;color:var(--muted);margin-bottom:14px;letter-spacing:.03em}
.post-card-meta>span{color:var(--green)}
.post-card h3{font-size:22px;line-height:1.5;margin-bottom:12px}
.post-card p{font-size:14px;line-height:1.85;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;padding-right:16px}
.card-arrow{display:block;text-align:right;color:var(--green);font-size:17px}
.app-band{background:var(--navy);color:var(--on-navy)}
.app-band-inner{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:88px;align-items:center;padding:88px 0}
.app-band .sec-no{color:var(--gold)}
.app-band h2{font-size:34px;line-height:1.3;color:var(--on-navy);margin:0 0 18px}
.app-band p{font-size:16px;line-height:1.8;color:var(--on-navy-muted);max-width:30em;margin:0 0 32px}
.app-band-actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.app-band-actions>a:not(.button){font-size:14px;font-weight:500;color:var(--gold-2)}
.app-band-actions>a:not(.button) span{margin-left:6px}
.app-band-figure{margin:0;aspect-ratio:4/5;overflow:hidden;background:var(--navy-2);box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
.app-band-figure img{width:100%;height:100%;object-fit:cover}
.home-recent .site-history{max-width:none;margin-top:0;padding-top:0;border-top:0}
.home-recent .site-history h2{display:none}
.home-recent .history-event:nth-child(n+4){display:none}
.home-recent .history-detail p{display:none}
.home-recent-more{margin:28px 0 0;font-size:14px}

/* ---------- 历史记录 ---------- */
.site-history{max-width:940px;margin-top:72px;padding-top:42px;border-top:1px solid var(--line)}
.site-history h2{font-size:30px;margin-bottom:35px}
.history-list{list-style:none;padding:0;margin:0}
.history-event{display:grid;grid-template-columns:130px minmax(0,1fr);gap:35px;position:relative;padding-bottom:32px}
.history-event:last-child{padding-bottom:0}
.history-event time{font-size:13px;line-height:1.8;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:3px}
.history-detail{position:relative;padding-left:30px;border-left:1px solid var(--line);padding-bottom:8px}
.history-detail::before{content:"";position:absolute;left:-4px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px var(--paper)}
.history-detail h3{font-family:var(--sans);font-size:17px;line-height:1.7;font-weight:600;margin:0 0 8px}
.history-detail p{font-size:14px;line-height:1.9;color:var(--muted);margin:0;max-width:640px}
.history-detail a{color:var(--green);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.history-detail a:hover{color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding-top:56px;background:var(--paper);color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr) 180px 180px;gap:64px}
.footer-about .wordmark{color:var(--ink)}
.footer-about p{margin:16px 0 0;font-size:14px;line-height:1.8}
.footer-grid nav{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-grid nav a:hover{color:var(--green)}
.footer-label{font-size:11px;letter-spacing:.18em;color:var(--gold-ink);font-weight:600;margin-bottom:4px}
.footer-copyright{font-size:12px;padding:44px 0 8px}
.site-footer footer[aria-label="网站备案信息"]{background:transparent!important;padding-top:10px!important;padding-bottom:28px!important}
.site-footer footer[aria-label="网站备案信息"] a{color:var(--muted)!important}
.site-footer footer[aria-label="网站备案信息"] img{display:inline-block}

/* ---------- 列表页、简单页 ---------- */
.page-heading{padding:64px 0 40px;border-bottom:1px solid var(--line);margin-bottom:40px;position:relative}
.page-heading h1{font-size:44px;line-height:1.3;margin:0 0 10px}
.page-heading .eyebrow{margin-bottom:16px}
.page-heading>p:last-child:not(.eyebrow){color:var(--muted);font-size:16px;margin:18px 0 0}
.listing-page{min-height:580px;padding-bottom:80px}
.listing-page .empty-state{border-top:0;padding-top:0}
.search-form{position:absolute;right:0;bottom:44px;display:flex;border-bottom:1px solid var(--line-strong);gap:10px}
.search-form input{background:none;border:0;padding:12px 0;width:200px;color:var(--ink);font-size:14px}
.search-form button{border:0;background:none;color:var(--green);font-size:13px}
.pagination{display:flex;justify-content:center;align-items:center;gap:24px;padding-top:50px;font-size:14px}
.pagination span{color:var(--muted)}
.simple-page{min-height:590px;padding-bottom:80px}
.simple-page .page-heading{max-width:940px}
.simple-links{display:flex;gap:30px;font-size:14px;color:var(--green);padding-top:35px}
.site-intro-name{font-family:var(--serif);font-size:34px;margin-top:42px}
.contact-copy{line-height:1.9;font-size:15px}
.contact-copy>p{color:var(--muted)}
.contact-email{font-family:var(--serif);font-size:26px;display:block;margin:24px 0;overflow-wrap:anywhere}
.profile-layout{display:flex;gap:48px;max-width:940px;font-size:15px;line-height:1.85}
.profile-layout>div{flex:1;min-width:0}
.profile-portrait{width:210px;height:270px;object-fit:cover}
.profile-role{color:var(--green);font-weight:600}
.profile-credentials{border-top:1px solid var(--line);padding-top:25px;margin-top:25px;color:var(--muted)}
.profile-links{display:flex;gap:22px;margin-top:30px;color:var(--green)}
.project-card{max-width:940px;display:flex;align-items:center;gap:38px;border-bottom:1px solid var(--line);padding:28px 0 35px}
.project-monogram{display:grid;place-items:center;width:138px;height:145px;flex-shrink:0;background:var(--navy);color:var(--gold);font-family:var(--serif);font-size:40px}
.project-card h2{font-size:27px;margin-bottom:12px}
.project-card p{font-size:15px;color:var(--muted);line-height:1.8}
.app-downloads{display:flex;gap:18px;margin:32px 0}
.policy-page{max-width:900px;padding-top:64px;padding-bottom:80px}
.policy-page h1{font-size:38px}

/* ---------- 书籍页 ---------- */
.book-page{padding-block:64px 96px}
.book-heading{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:end;border-bottom:1px solid var(--line);padding-bottom:40px}
.book-heading h1{font-size:48px;line-height:1.2;margin:0 0 18px}
.book-heading .eyebrow{margin-bottom:18px}
.book-lede{font-size:16px;line-height:1.8;color:var(--muted);max-width:36em;margin:0}
.book-heading-count{text-align:right;color:var(--muted);padding-bottom:4px}
.book-cover{display:block;width:144px;height:144px;margin:0 0 18px auto;border-radius:4px}
.book-heading-count strong{display:block;font-family:var(--serif);font-size:56px;font-weight:500;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums lining-nums}
.book-heading-count span{display:block;margin-top:8px;font-size:11px;letter-spacing:.16em;white-space:nowrap}
.published-section{margin-top:48px}
.published-count{font-size:13px;color:var(--muted);letter-spacing:.04em;white-space:nowrap;font-variant-numeric:tabular-nums}
.published-card .chapter-label,.published-card .chapter-card-meta{margin:0}
.book-layout{display:grid;grid-template-columns:215px minmax(0,1fr);gap:64px;margin-top:40px}
.book-parts{align-self:start;position:sticky;top:32px;display:grid;gap:22px;padding-top:24px}
.book-parts a{font-size:14px;color:var(--muted);line-height:1.6;transition:color .18s}
.book-parts a:hover{color:var(--ink)}
.book-parts span{display:inline-block;color:var(--gold-ink);font-family:var(--serif);font-size:12px;width:28px}
.book-parts-published{color:var(--green)!important;font-weight:600}
.book-parts-published span{color:var(--green)!important;font-size:8px!important;vertical-align:2px}
.catalog-heading{margin-top:72px;margin-bottom:8px}
.catalog-legend{font-size:13px;color:var(--muted);white-space:nowrap}
.catalog-part{padding:16px 0 28px;scroll-margin-top:20px}
.catalog-part h2{font-size:26px;margin:0 0 18px;line-height:1.5}
.catalog-part h2 span{font-family:var(--sans);display:block;font-size:11px;color:var(--green);letter-spacing:.16em;margin-bottom:8px}
.catalog-part-subtitle{font-size:14px;color:var(--muted);margin:-6px 0 14px;line-height:1.7}
.chapter-row{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:16px;align-items:baseline;border-top:1px solid var(--line);padding:18px 0;font-size:15px;line-height:1.7;color:var(--faint)}
.chapter-number{font-family:var(--serif);font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.chapter-title{display:block;min-width:0}
.chapter-row .chapter-facts{display:block;font-size:12px;color:var(--muted);margin-top:4px;white-space:normal;letter-spacing:.02em}
.chapter-row .chapter-state{font-size:12px;white-space:nowrap;color:var(--faint);justify-self:end}
.chapter-row.available{color:var(--ink)}
.chapter-row.available .chapter-number{color:var(--green)}
.chapter-row.available .chapter-title{font-weight:600}
.chapter-row.available .chapter-state{color:var(--green);font-weight:600;padding:6px 12px;border:1px solid #bcd5c8;border-radius:999px;transition:background .18s,color .18s,border-color .18s}
.chapter-row.available:hover .chapter-state{background:var(--green);color:#fff;border-color:var(--green)}
.book-disclosure{margin-top:56px}

/* ---------- 阅读器与文章页 ---------- */
.reader-toolbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 96%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.reader-toolbar-inner{height:48px;display:flex;justify-content:space-between;align-items:center;font-size:12px;position:relative}
.reader-toolbar-inner>a{color:var(--muted)}
.reader-tools{display:flex;align-items:center;gap:6px}
.reader-tools button,.reader-tools summary{border:0;border-radius:3px;background:none;color:var(--muted);padding:7px 10px;font-size:12px}
.reader-tools button:hover,.reader-tools summary:hover,.reader-tools button[aria-pressed=true]{background:var(--green-soft);color:var(--green)}
.reader-tools summary{cursor:pointer;list-style:none}
.reader-tools summary::-webkit-details-marker{display:none}
.reader-tools details{position:relative}
.reader-search{position:absolute;right:0;top:38px;background:var(--paper);border:1px solid var(--line);padding:14px;width:310px;display:flex;flex-wrap:wrap;gap:8px;box-shadow:0 8px 20px #0001}
.reader-search input{width:195px;min-width:0;padding:8px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:13px}
.reader-search output{width:100%;font-size:12px;color:var(--muted)}
.reader-progress{position:absolute;bottom:-1px;left:0;right:0;height:2px}
.reader-progress span{display:block;width:0;height:100%;background:var(--green)}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(160px,1fr);gap:64px;align-items:start;padding-top:56px;padding-bottom:88px;max-width:1100px}
.article-main{min-width:0}
.article-heading{padding-bottom:30px;border-bottom:1px solid var(--line);margin-bottom:32px}
.breadcrumb{font-size:12px;color:var(--green);font-weight:500}
.breadcrumb-trail{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px}
.chapter-book-heading{display:flex;align-items:center;gap:16px}
.chapter-book-cover{flex-shrink:0}
.chapter-book-cover img{display:block;width:64px;height:64px;border-radius:3px}
.breadcrumb-sep{color:var(--faint)}
.category{font-size:12px;color:var(--muted);margin-left:15px}
.article-heading h1{font-size:36px;line-height:1.5;margin:22px 0 18px;letter-spacing:.01em}
.article-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted);letter-spacing:.02em}
.article-summary{color:var(--muted);font-size:16px;line-height:1.85;margin:26px 0 0}
.article-cover{margin:0 0 28px}
.article-cover img{width:100%;max-height:510px;object-fit:cover}
.chapter-ordinal{font-size:12px;color:var(--green);letter-spacing:.2em;font-weight:600;margin:26px 0 0}
.chapter-ordinal+h1{margin-top:10px}
.chapter-dates{margin-top:20px;font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 18px;letter-spacing:.02em}
.chapter-dates p{flex-basis:100%;margin:2px 0 0}
.mobile-outline{display:none;margin:0 0 28px;border:1px solid var(--line);background:var(--card)}
.mobile-outline summary{padding:12px 16px;font-size:14px;font-weight:500;color:var(--green);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.mobile-outline summary::-webkit-details-marker{display:none}
.mobile-outline summary::after{content:"＋";color:var(--muted)}
.mobile-outline[open] summary::after{content:"－"}
.mobile-outline nav{display:grid;gap:2px;padding:4px 16px 14px;border-top:1px solid var(--line)}
.mobile-outline nav a{font-size:14px;line-height:1.6;padding:6px 0;color:var(--ink)}
.reader-outline{position:sticky;top:80px;max-height:calc(100vh - 110px);overflow-y:auto;font-size:12px;scrollbar-width:thin;padding:4px 0 15px;border-left:1px solid var(--line);padding-left:24px}
.reader-outline>p{font-size:11px;color:var(--green);letter-spacing:.16em;font-weight:600;margin-bottom:18px}
.reader-outline nav{display:grid;gap:12px}
.reader-outline nav a{color:var(--muted);line-height:1.65}
.reader-outline nav a:hover,.reader-outline nav a[aria-current]{color:var(--green)}
.reader-outline .outline-level-3{padding-left:12px;font-size:11px}
.reader-outline .outline-level-4,.reader-outline .outline-level-5,.reader-outline .outline-level-6{padding-left:23px;font-size:11px}
.back-top{display:block;font-size:11px;color:var(--green);margin-top:26px}
.outline-chapters{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:10px}
.outline-chapters>p{font-size:11px;color:var(--green);letter-spacing:.16em;font-weight:600;margin:0 0 6px}
.outline-chapters a{color:var(--muted);line-height:1.6}
.outline-chapters a[aria-current]{color:var(--ink);font-weight:600}
.outline-chapters .outline-all{color:var(--green);margin-top:4px}
.article-content{font-size:var(--reader-font);line-height:1.85;overflow-wrap:anywhere}
.article-content p{margin-block:0 1.15em}
.article-content h2{font-size:1.45em;margin:2.3em 0 1em;font-weight:600}
.article-content h3{font-size:1.15em;line-height:1.65;margin:1.9em 0 .8em}
.article-content h4{font-size:1.04em;margin:1.7em 0 .7em}
.article-content h2,.article-content h3,.article-content h4,.article-content [id]{scroll-margin-top:80px}
.article-content a{color:var(--green);text-underline-offset:4px;text-decoration:underline;text-decoration-color:#a9c4ba}
.article-content ul,.article-content ol{padding-left:1.6em;margin:1em 0 1.4em}
.article-content li{margin:.45em 0}
.article-content blockquote{margin:1.5em 0;padding:12px 22px;border-left:3px solid #74977f;background:var(--green-soft);color:#4b6054}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}
.article-content img{max-width:100%;margin:1.6em auto}
.article-content pre{font-size:.8em;overflow-x:auto;white-space:pre;background:var(--paper-2);padding:18px;line-height:1.7}
.article-content code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.87em}
.article-content table{width:100%;border-collapse:collapse;font-size:.85em;margin:1.7em 0;display:block;overflow-x:auto}
.article-content th,.article-content td{padding:11px 13px;border:1px solid #cfd6cd;min-width:85px;vertical-align:top}
.article-content th{background:#e8eee5;text-align:left;font-weight:600}
.article-content .references{margin-top:55px}
.article-content .references ol{list-style:none;padding-left:0;font-size:13px;line-height:1.85}
.article-content .references li{display:flex;gap:14px;margin:0;padding:11px 0;border-bottom:1px solid var(--line)}
.article-content .references li>div{flex:1;min-width:0}
.article-content .references p{margin:0}
.reference-number{color:var(--muted);min-width:28px;font-variant-numeric:tabular-nums}
.article-content .graycat-article{padding:0!important;margin:0!important;width:100%!important;max-width:none!important;background:transparent!important;font-size:var(--reader-font)!important}
.article-sources{border-top:1px solid var(--line);padding-top:30px;margin-top:45px}
.article-sources h2{font-family:inherit;font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--muted);margin-bottom:15px}
.article-sources a{font-size:13px;color:var(--green);margin-right:24px}
.chapter-navigation{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:start;border-top:1px solid var(--line);margin-top:50px;padding-top:30px;color:var(--green);font-size:13px;line-height:1.9}
.chapter-nav-prev{grid-column:1}
.chapter-nav-index{grid-column:2;align-self:center;padding:8px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:12px;line-height:1.4}
.chapter-nav-index:hover{color:var(--green);border-color:var(--green)}
.chapter-nav-next{grid-column:3;text-align:right}
.reader-hit{background:#f8df85;color:#253328;scroll-margin-top:100px}
.reader-hit.current{background:#f6ba59;outline:1px solid #b58627}
.reader-bookmark-notice{position:fixed;left:50%;bottom:25px;transform:translateX(-50%);background:var(--navy);color:#f2eadc;font-size:13px;padding:13px 20px;border-radius:3px;z-index:40;box-shadow:0 4px 15px #0002}
html.reader-night{--paper:#12202a;--paper-2:#1a2c38;--card:#172935;--ink:#d4dcd9;--ink-2:#c3ccc9;--muted:#91a29e;--faint:#728480;--line:#2e403f;--line-strong:#3d5251;--green:#9ac8b7;--green-2:#b3d8ca;--green-soft:#203630;color-scheme:dark}
.reader-night .article-content .graycat-article{color:var(--ink)!important}
.reader-night .article-content .graycat-article :is(p,li,h1,h2,h3,h4,strong){color:inherit}
.reader-night .article-content pre,.reader-night .article-content blockquote,.reader-night .article-content th{background:#203630;color:var(--ink)}
.reader-night .article-content td,.reader-night .article-content th{border-color:var(--line)}
.reader-night .reader-tools button:hover,.reader-night .reader-tools button[aria-pressed=true]{background:#263f37;color:var(--green)}

/* ---------- 关于页与访问学者页 ---------- */
.about-hero{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;align-items:center;padding:56px 0 40px}
.about-portrait{width:200px;height:270px;object-fit:cover;outline:1px solid var(--gold);outline-offset:10px;border-radius:1px;justify-self:start}
.about-identity .eyebrow{color:var(--gold);margin-bottom:20px}
.about-identity h1{font-size:52px;line-height:1.15;letter-spacing:.04em;margin:0 0 16px;color:var(--on-navy)}
.about-role{font-size:13px;letter-spacing:.12em;color:var(--gold-2);margin:0 0 10px;font-weight:600}
.about-institution{font-size:17px;color:#d3d9da;margin:0 0 18px}
.about-headline{font-family:var(--serif);font-size:22px;line-height:1.6;color:var(--on-navy);margin:0 0 24px;max-width:24em}
.about-links{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;margin-top:0;color:var(--gold-2)}
.about-links a{color:var(--gold-2)}
.about-facts{border-top:1px solid var(--on-navy-line);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 40px;padding:24px 0 36px;margin-top:0;font-size:13px;line-height:1.7;color:#c9d0d2}
.about-facts .dot{background:var(--gold)}
.about-body{display:grid;grid-template-columns:220px minmax(0,760px);gap:80px;padding:72px 0 24px;align-items:start}
.about-rail{position:sticky;top:32px;font-size:14px;color:var(--muted);line-height:1.8}
.rail-label{font-size:11px;letter-spacing:.18em;font-weight:600;color:var(--gold-ink);margin:0 0 14px}
.about-rail>a{display:block;color:var(--green);padding:6px 0;border-top:1px solid var(--line)}
.about-rail>a:last-of-type{border-bottom:1px solid var(--line)}
.rail-note{margin:20px 0 0;font-size:13px;line-height:1.8}
.rail-inline{color:var(--green)}
.profile-bio{counter-reset:sec;font-size:16px;line-height:1.85}
.profile-bio>p:first-child{font-size:18px;line-height:1.8;margin-bottom:1.4em}
.profile-bio h3{counter-increment:sec;font-size:24px;line-height:1.4;font-weight:600;margin:2.4em 0 .9em;display:flex;align-items:baseline;gap:14px}
.profile-bio h3::before{content:counter(sec,decimal-leading-zero);font-family:var(--serif);font-size:12px;letter-spacing:.12em;color:var(--gold-ink)}
.profile-bio table{display:table;width:100%;font-size:14px;margin:1.2em 0 1.4em}
.profile-bio th,.profile-bio td{border:0;border-bottom:1px solid var(--line);padding:12px 12px 12px 0;min-width:0;vertical-align:top}
.profile-bio th{background:transparent;font-size:12px;letter-spacing:.06em;color:var(--muted);font-weight:600}
.profile-bio ul{padding-left:1.15em}
.profile-bio li::marker{color:var(--gold)}
.profile-bio a{color:var(--green)}
.about-history{padding-bottom:80px}
.about-history .site-history{margin-top:24px}
.fellowship-page .page-heading h1{font-size:40px}
.fellowship-intro{max-width:760px;margin-bottom:64px}
.mentor .section-title{font-size:30px;margin-bottom:28px}
.mentor-card{display:grid;grid-template-columns:138px minmax(0,1fr);gap:40px;max-width:940px;align-items:start}
.mentor-card .article-content{font-size:15px}
.fact-list{max-width:940px;margin:36px 0 0;border-top:1px solid var(--line)}
.fact-list>div{display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.7}
.fact-list dt{color:var(--muted)}
.fact-list dd{margin:0}
.fellowship-note{margin-top:40px;font-size:13px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .wrap{width:calc(100% - 64px)}
  .header-inner{gap:24px}
  .header-inner>nav{gap:24px}
  .home-hero{grid-template-columns:minmax(0,1fr) 400px;gap:48px;padding:48px 0 56px}
  .home-hero h1{font-size:46px}
  .catalog-card{padding:26px 26px 20px}
  .app-band-inner{grid-template-columns:minmax(0,1fr) 340px;gap:48px}
  .book-layout{grid-template-columns:180px minmax(0,1fr);gap:36px}
  .article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 170px}
  .article-heading h1{font-size:32px}
  .reader-outline{padding-left:18px}
  .about-body{grid-template-columns:minmax(0,1fr);gap:40px}
  .about-rail{position:static}
  .about-facts{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:760px){
  .wrap{width:calc(100% - 40px)}
  body{font-size:15px}
  .header-inner{height:auto;min-height:72px;flex-wrap:wrap;gap:0;padding-top:16px}
  .wordmark{font-size:20px}
  .header-inner>nav{width:100%;flex:0 0 100%;order:3;overflow-x:auto;gap:24px;padding:4px 0 6px;font-size:15px;scrollbar-width:none}
  .header-inner nav a{padding:12px 0}
  .app-link{margin-left:auto;font-size:13px;padding:10px 16px}
  .button{padding:0 20px;font-size:15px}
  .home-hero{grid-template-columns:1fr;gap:40px;padding:40px 0 40px}
  .home-hero h1{font-size:38px;line-height:1.25;margin-bottom:20px}
  .home-hero-lede{font-size:16px;margin-bottom:28px}
  .home-hero-actions{flex-direction:column;align-items:stretch;width:100%;gap:12px}
  .home-hero-actions .button{width:100%}
  .home-byline{margin-top:32px}
  .catalog-card{padding:22px 22px 18px}
  .part-row{grid-template-columns:26px minmax(0,1fr) auto;gap:10px}
  .part-row .name{font-size:16px}
  .catalog-card-foot{flex-direction:column;gap:8px}
  .home-proof{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px;padding:24px 0 32px}
  .home-proof>div{padding-left:14px}
  .home-proof b{font-size:26px}
  .home-section{padding:60px 0}
  .section-title{font-size:28px}
  .section-heading{margin-bottom:26px;align-items:flex-end}
  .section-lede{margin-bottom:28px}
  .published-grid,.chapter-card-list{grid-template-columns:1fr;gap:16px}
  .chapter-card,.published-card{padding:22px;gap:12px}
  .chapter-card h3,.published-card h3{font-size:20px}
  .home-guide{grid-template-columns:1fr;gap:28px}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 20px}
  .post-card h3{font-size:19px}
  .post-card p{font-size:13px;-webkit-line-clamp:2}
  .post-cover{margin-bottom:17px}
  .post-card-meta{font-size:11px;flex-wrap:wrap;gap:7px}
  .insights-heading{margin-top:48px}
  .app-band-inner{grid-template-columns:1fr;padding:56px 0;gap:32px}
  .app-band h2{font-size:28px}
  .app-band-actions{flex-direction:column;align-items:stretch;gap:12px}
  .app-band-actions .button{width:100%}
  .app-band-actions>a:not(.button){text-align:center;padding:12px}
  .app-band-figure{aspect-ratio:16/10;order:-1}
  .site-history{margin-top:48px;padding-top:30px}
  .site-history h2{font-size:26px;margin-bottom:28px}
  .history-event{grid-template-columns:1fr;gap:6px;padding-left:22px;padding-bottom:28px;border-left:1px solid var(--line)}
  .history-event time{font-size:12px;padding:0}
  .history-detail{border:0;padding:0}
  .history-detail::before{left:-26px;top:-22px}
  .history-detail h3{font-size:16px;margin-bottom:6px}
  .history-detail p{font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:40px}
  .footer-copyright{padding-top:28px}
  .page-heading{padding:40px 0 28px;margin-bottom:28px}
  .page-heading h1{font-size:34px}
  .listing-page{min-height:500px;padding-bottom:56px}
  .search-form{position:static;margin-top:24px;width:100%}
  .search-form input{width:100%;min-width:0}
  .simple-page{min-height:540px;padding-bottom:56px}
  .profile-layout{gap:25px;flex-direction:column}
  .profile-portrait{width:160px;height:200px}
  .simple-links{gap:20px;flex-wrap:wrap}
  .project-card{gap:23px;padding-block:20px 28px}
  .project-monogram{width:87px;height:110px;font-size:28px}
  .project-card h2{font-size:23px}
  .project-card p{font-size:14px}
  .app-downloads{gap:12px;flex-wrap:wrap}
  .policy-page{padding-block:40px 60px}
  .book-page{padding-block:40px 64px}
  .book-heading{grid-template-columns:1fr;gap:20px;padding-bottom:28px}
  .book-heading h1{font-size:36px}
  .book-heading-count{text-align:left;display:flex;align-items:baseline;gap:12px}
  .book-heading-count strong{font-size:40px}
  .book-heading-count span{margin-top:0}
  .book-cover{width:96px;height:96px;margin:0 8px 0 0}
  .book-heading-count{align-items:center}
  .published-section{margin-top:32px}
  .book-layout{display:block;margin-top:12px}
  .book-parts{display:none}
  .catalog-heading{margin-top:48px}
  .catalog-legend{white-space:normal}
  .catalog-part{padding-top:24px}
  .catalog-part h2{font-size:24px}
  .chapter-row{font-size:14px;gap:10px;grid-template-columns:26px minmax(0,1fr) auto;padding:16px 0}
  .chapter-row.available .chapter-state{font-size:11px;padding:5px 9px}
  .article-layout{display:block;padding-top:32px;padding-bottom:60px}
  .reader-outline{display:none}
  .mobile-outline{display:block}
  .article-heading h1{font-size:28px;line-height:1.5;margin-top:18px}
  .article-summary{font-size:15px}
  .article-content{line-height:1.9}
  .article-content h2{font-size:1.35em}
  .article-content h3{font-size:1.12em}
  .article-content .references ol{font-size:12px}
  .article-content .references li{gap:8px}
  .reader-toolbar-inner{height:46px}
  .reader-toolbar-inner>a{font-size:11px}
  .reader-tools{gap:1px}
  .reader-tools button,.reader-tools summary{font-size:11px;padding:7px}
  .article-meta{gap:10px;font-size:11px}
  .chapter-dates{font-size:11px;line-height:1.6}
  .chapter-ordinal{font-size:11px}
  .chapter-navigation{grid-template-columns:1fr;gap:12px}
  .chapter-nav-prev,.chapter-nav-index,.chapter-nav-next{grid-column:auto;text-align:left}
  .chapter-nav-index{justify-self:start}
  .reader-search{width:290px;right:-5px}
  .reader-search input{width:177px}
  .about-hero{grid-template-columns:1fr;gap:32px;padding:40px 0 28px}
  .about-portrait{width:150px;height:200px;outline-offset:8px}
  .about-identity h1{font-size:40px}
  .about-headline{font-size:19px}
  .about-facts{grid-template-columns:1fr;gap:12px;padding:20px 0 28px}
  .about-body{padding:48px 0 16px}
  .profile-bio{font-size:15px}
  .profile-bio>p:first-child{font-size:17px}
  .profile-bio h3{font-size:21px}
  .profile-bio table{display:table;font-size:13px}
  .profile-bio th,.profile-bio td{padding:10px 8px 10px 0}
  .about-history{padding-bottom:56px}
  .fellowship-page .page-heading h1{font-size:30px}
  .mentor-card{grid-template-columns:1fr;gap:20px}
  .fact-list>div{grid-template-columns:1fr;gap:4px}
}
@media(max-width:420px){
  .home-hero h1{font-size:34px}
  .post-grid{grid-template-columns:1fr}
  .post-cover{aspect-ratio:1.8}
  .post-card h3{font-size:21px}
  .article-heading h1{font-size:26px}
  .reader-toolbar-inner>a{max-width:75px;white-space:nowrap;overflow:hidden}
  .reader-tools button,.reader-tools summary{padding-inline:6px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{
  .site-header,.site-footer,.reader-toolbar,.reader-outline,.chapter-navigation,.mobile-outline{display:none!important}
  .wrap{width:100%}
  .article-layout{display:block;padding:0}
  .article-content{font-size:11pt}
  .article-heading h1{font-size:23pt}
  a{color:inherit!important;text-decoration:none!important}
  .article-content table{display:table}
  body{background:white;color:black}
  .article-content img{max-height:90vh}
}