:root{
  --bg:#fff;
  --text:#111;
  --muted:#757575;
  --line:#e8e8e8;
  --soft:#f5f5f3;
  --header-bg:rgba(255,255,255,.96);
  --panel-bg:#fff;
  --overlay:rgba(0,0,0,.06);
  --header-h:72px;
  --page-max:1440px;
  --pad:clamp(20px,3.4vw,54px);
  --ease:cubic-bezier(.2,.8,.2,1);
}
html.dark{
  --bg:#111;
  --text:#f2f2ef;
  --muted:#a7a7a2;
  --line:#2d2d2a;
  --soft:#181816;
  --header-bg:rgba(17,17,17,.96);
  --panel-bg:#111;
  --overlay:rgba(255,255,255,.04);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Arial,Helvetica,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
img{height:auto}
.site-header{
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--pad);
  position:sticky;top:0;z-index:80;
  background:var(--header-bg);
  -webkit-backdrop-filter:saturate(120%) blur(8px);
  backdrop-filter:saturate(120%) blur(8px);
}
.brand{font-size:18px;font-weight:700;letter-spacing:.045em;white-space:nowrap}
.desktop-nav{display:flex;align-items:center;gap:22px;white-space:nowrap}
.desktop-nav a,.desktop-nav button{position:relative;color:var(--text)}
.desktop-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;background:var(--text)}
.lang-switch{display:flex;align-items:center;gap:7px;margin-left:12px;color:var(--muted)}
.lang-switch a.active{color:var(--text)}
.lang-switch span{color:#aaa}
.theme-toggle{margin-left:10px;color:var(--muted);white-space:nowrap}
.theme-toggle:hover{color:var(--text)}
.mobile-menu-btn{display:none;font-size:14px}
main{width:min(100%,var(--page-max));margin:0 auto;min-height:calc(100vh - var(--header-h))}
.page{padding:36px var(--pad) 72px}
.page-title{font-size:15px;font-weight:400;margin:0 0 42px;letter-spacing:.01em}
.subtle{color:var(--muted)}
.site-footer{width:min(100%,var(--page-max));margin:0 auto;padding:24px var(--pad) 30px;font-size:11px;color:var(--muted)}

/* Home */
.home-page{padding-top:28px;padding-bottom:40px}
.feature{width:min(77vw,980px);margin:0 auto}
.feature-stage{position:relative;height:min(58vw,620px);min-height:390px;overflow:hidden;background:var(--soft)}
.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .45s ease;display:grid;place-items:center}
.slide.active{opacity:1;pointer-events:auto}
.slide img{width:100%;height:100%;object-fit:contain}
.feature-control{position:absolute;top:0;bottom:0;width:18%;z-index:6;display:flex;align-items:center;color:var(--muted);font-size:22px}
.feature-control.prev{left:0;justify-content:flex-start;padding-left:14px}
.feature-control.next{right:0;justify-content:flex-end;padding-right:14px}
.feature-control:hover{color:var(--text)}
.feature-meta{display:grid;grid-template-columns:1fr auto;gap:20px;margin-top:12px;align-items:start}
.feature-title{font-size:14px}
.feature-count{font-size:12px;color:var(--muted);letter-spacing:.08em}
.home-secondary{margin:64px auto 0;width:min(100%,1180px);display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,42px)}
.home-card-media{background:var(--soft);overflow:hidden;aspect-ratio:4/3}
.home-card:nth-child(2) .home-card-media{aspect-ratio:3/4}
.home-card:nth-child(3) .home-card-media{aspect-ratio:1}
.home-card-media img{width:100%;height:100%;object-fit:contain}
.home-card-meta{margin-top:10px;font-size:13px}

/* Works */
.works-page{padding-top:36px}
.works-toolbar{display:flex;justify-content:flex-end;margin-bottom:10px;min-height:22px}
.filter-groups{display:grid;margin:0 0 34px;border-top:1px solid var(--line)}
.filter-group{display:grid;grid-template-columns:92px minmax(0,1fr);gap:16px;align-items:start;padding:14px 0 15px;border-bottom:1px solid var(--line)}
.filter-label{color:var(--muted);font-size:12.5px;padding-top:2px}
.filter-options-shell{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;min-width:0;align-items:start}
.filter-options{display:flex;flex-wrap:wrap;gap:10px 16px;min-width:0;overflow:hidden}
.filter-group:not(.expanded) .filter-options{max-height:24px}
.filter-options button{color:var(--muted);white-space:nowrap;position:relative;flex:0 0 auto}
.filter-options button.active{color:var(--text)}
.filter-options button.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--text)}
.filter-more{display:none;color:var(--muted);font-size:15px;width:18px;line-height:1;padding-top:2px}
.filter-group.has-overflow .filter-more{display:block}
.filter-group.expanded .filter-more{transform:rotate(45deg);color:var(--text)}
.works-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:36px 24px;align-items:start}
.work-card{display:block;min-width:0}
.work-thumb{background:var(--soft);overflow:hidden;aspect-ratio:4/3}
.work-card.aspect-portrait .work-thumb{aspect-ratio:3/4}
.work-card.aspect-square .work-thumb{aspect-ratio:1}
.work-thumb img{width:100%;height:100%;object-fit:contain}
.work-meta{margin-top:9px;font-size:12.5px;display:grid;gap:2px}
.work-secondary{color:var(--muted);overflow-wrap:anywhere}
.works-empty{display:none;padding:28px 0;color:var(--muted)}
.works-empty.show{display:block}
.works-sentinel{height:1px}
.works-loading{padding:22px 0;text-align:center;color:var(--muted);font-size:12px;min-height:54px}

/* Detail + media */
.detail-back{display:inline-block;color:var(--muted);margin-bottom:28px}
.detail-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(260px,.55fr);gap:clamp(34px,6vw,90px);align-items:start}
.detail-media{display:grid;gap:24px}
.art-image-button{display:block;width:100%;cursor:default;text-align:inherit}
.art-image{width:100%;background:var(--soft)}
.art-image img{width:100%;max-height:78vh;object-fit:contain;margin:auto}
.detail-info{position:sticky;top:calc(var(--header-h) + 26px)}
.detail-info h1{font-size:16px;font-weight:400;margin:0 0 6px}
.detail-info p{margin:0 0 7px}
.detail-description{margin-top:34px!important;max-width:48ch;line-height:1.8}
.detail-series-link{display:inline-block;margin-top:24px;color:var(--muted)}
.video-player{width:100%;background:#000;max-height:75vh}
.audio-player{width:100%;margin:10px 0 12px}
.series-head{max-width:720px;margin-bottom:54px}
.series-head h1{font-size:18px;font-weight:400;margin:0 0 8px}
.series-head p{margin:0 0 7px}
.series-copy{max-width:58ch;margin-top:28px!important;line-height:1.8}
.series-gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:48px 24px;align-items:start}
.series-item{cursor:default}
.series-item.pattern-1{grid-column:2/span 9}
.series-item.pattern-2{grid-column:1/span 5}
.series-item.pattern-3{grid-column:7/span 6}
.series-item.pattern-4{grid-column:3/span 8}
.series-item.pattern-5{grid-column:1/span 6}
.series-item.pattern-6{grid-column:8/span 5}
.series-image{background:var(--soft)}
.series-image img{width:100%;height:auto;max-height:78vh;object-fit:contain;margin:auto}
.series-caption{margin-top:8px;font-size:12px;color:var(--muted)}

/* About / CV / Contact */
.text-page{max-width:1100px}
.about-grid{display:grid;grid-template-columns:minmax(320px,.95fr) minmax(0,1.05fr);gap:clamp(48px,7vw,110px);align-items:start;max-width:1080px}
.about-image-wrap{width:min(100%,520px)}
.about-image{background:var(--soft)}
.about-image img{width:100%;height:auto;object-fit:contain}
.about-image.landscape{max-width:440px}
.about-copy{display:grid;grid-template-columns:1fr;gap:54px;padding-top:4px}
.about-copy section{max-width:620px}
.text-page h2{font-size:14px;font-weight:400;margin:0 0 18px}
.text-page p{max-width:58ch;margin:0 0 18px;line-height:1.85}
.cv-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:38px;max-width:860px}
.cv-head h1{font-size:16px;font-weight:400;margin:0}
.pdf-link{color:var(--muted)}
.cv-section{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:18px 0;border-top:1px solid var(--line);max-width:860px}
.cv-section h2{font-size:13px;font-weight:400;margin:0}
.cv-list{display:grid;gap:10px}
.cv-row{display:grid;grid-template-columns:64px 1fr;gap:18px}
.contact-list{display:grid;gap:16px;margin-top:24px;font-size:15px}

/* Drawer */
.drawer-layer{position:fixed;inset:0;z-index:120;pointer-events:none;visibility:hidden}
.drawer-layer.open{pointer-events:auto;visibility:visible}
.drawer-backdrop{position:absolute;inset:0;background:transparent;transition:background .28s ease}
.drawer-layer.open .drawer-backdrop{background:var(--overlay)}
.drawer{position:absolute;top:0;right:0;bottom:0;width:min(82vw,390px);background:var(--panel-bg);transform:translateX(100%);transition:transform .3s var(--ease);padding:24px 24px 36px;display:flex;flex-direction:column;overflow:auto}
.drawer-layer.open .drawer{transform:translateX(0)}
.drawer-close{align-self:flex-end;margin-bottom:54px}
.drawer-nav{display:grid;gap:22px;font-size:17px}
.drawer-nav a.active{text-decoration:underline;text-underline-offset:6px}
.drawer-lang{display:flex;gap:10px;margin-top:42px;color:var(--muted)}
.drawer-lang a.active{color:var(--text)}
.drawer-theme{margin-top:22px;color:var(--muted);text-align:left}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:var(--panel-bg);z-index:150;display:none;padding:24px}
.lightbox.open{display:block}
.lightbox-top{display:flex;justify-content:flex-end;margin-bottom:10px}
.lightbox-stage{height:calc(100vh - 72px);display:grid;place-items:center;position:relative;background:var(--panel-bg)}
.lightbox-image{width:min(86vw,1200px);height:min(78vh,800px);display:grid;place-items:center}
.lightbox-image img{width:100%;height:100%;object-fit:contain}
.lightbox-nav{position:absolute;top:0;bottom:0;width:18%;display:flex;align-items:center;color:var(--muted);font-size:22px}
.lightbox-nav.prev{left:0;justify-content:flex-start}
.lightbox-nav.next{right:0;justify-content:flex-end}

@media (max-width:1199px){.works-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:900px){
  :root{--header-h:62px}
  .desktop-nav{display:none}.mobile-menu-btn{display:block}
  .page{padding-top:26px}
  .feature{width:100%}.feature-stage{height:63vw;min-height:330px}
  .home-secondary{grid-template-columns:repeat(2,1fr);gap:34px 18px;margin-top:48px}
  .works-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .detail-grid{grid-template-columns:1fr}.detail-info{position:static}
  .about-grid{grid-template-columns:320px 1fr;gap:48px}.about-image-wrap{width:min(100%,360px)}.about-copy{gap:42px}
  .cv-section{grid-template-columns:140px 1fr}
}
@media (max-width:620px){
  :root{--pad:18px}
  body{font-size:13.5px}.site-header{padding-left:18px;padding-right:18px}
  .brand{font-size:17px}
  .home-page{padding-top:18px}.feature-stage{height:92vw;min-height:0}.feature-control{display:none}.feature-meta{margin-top:9px}
  .home-secondary{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 14px;margin-top:42px}.home-card-meta{font-size:12px}
  .page-title{margin-bottom:28px}
  .filter-group{grid-template-columns:72px minmax(0,1fr);gap:10px;padding:13px 0 14px}.filter-options-shell{gap:10px}.filter-options{gap:10px 14px}
  .works-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 14px}.work-meta{font-size:11.5px}
  .series-gallery{display:block}.series-item{margin-bottom:36px}.series-item.pattern-2,.series-item.pattern-5{width:74%;margin-left:0}.series-item.pattern-3,.series-item.pattern-6{width:78%;margin-left:auto}
  .about-grid{grid-template-columns:1fr;gap:34px}.about-image-wrap{width:min(88vw,360px)}.about-copy{gap:34px}
  .cv-section{display:block;padding:17px 0}.cv-section h2{margin-bottom:12px}.cv-row{grid-template-columns:54px 1fr}
  .lightbox{padding:18px}.lightbox-stage{height:calc(100vh - 58px)}.lightbox-image{width:92vw;height:74vh}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

@supports (height:100dvh){
  .lightbox-stage{height:calc(100dvh - 72px)}
  @media (max-width:620px){.lightbox-stage{height:calc(100dvh - 58px)}}
}

/* Long-list performance and optional-content helpers */
.work-card{content-visibility:auto;contain-intrinsic-size:320px 420px}
.detail-image-item{display:grid;gap:8px}
.detail-image-caption{font-size:12px;color:var(--muted)}
.about-grid.no-photo{grid-template-columns:minmax(0,720px);max-width:720px}
.about-grid.no-photo .about-copy{padding-top:0}