/* Mineral & Machine — "Xuan Paper" light theme (all pages) */
:root{
  --bg:#FAF7F2;
  --bg-alt:#F1EADF;
  --card:#FFFFFF;
  --line:#E6DED2;
  --text:#2B2B2B;
  --head:#1F3A75;
  --accent:#C8873A;
  --link:#9A5B1C;
  --foot:#EFE7DA;
  --shadow:0 2px 8px rgba(0,0,0,0.05);
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,'Helvetica Neue',Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);font-size:17px;line-height:1.7;color:var(--text);background:var(--bg)}
img{max-width:100%;display:block;height:auto}
a{color:var(--link)}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
/* home page shared container: hero image + intro + all sections align on the same 1120px edges */
.home .wrap{max-width:1120px;padding:0 24px}
@media(max-width:640px){.home .wrap{padding:0 16px}}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:#FFFFFF;border-bottom:1px solid var(--line)}
.nav-in{max-width:1200px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:.5px;text-decoration:none;color:var(--head)}
.nav-links{display:flex;gap:6px;flex-wrap:wrap}
.nav-links a{font-size:14px;font-weight:500;text-decoration:none;padding:8px 12px;border-radius:6px;color:var(--text)}
.nav-links a:hover{background:#F5EFE5}
.nav-links a.active{color:var(--link);font-weight:600}

/* ---------- hero ---------- */
/* 2.6:1 scroll illustration: scales with container width, no crop, no overlay; name/tagline in the sky (top-right, %) */
.hero{position:relative;background:var(--bg);padding:16px 0 32px}
.hero .wrap{position:relative}
.hero-frame{position:relative}
.hero-frame img{display:block;width:100%;height:auto;object-fit:contain;border-radius:12px}
.hero-in{position:absolute;top:9%;right:5%;z-index:2;text-align:right}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(26px,3vw,44px);line-height:1.1;letter-spacing:.5px;color:var(--head)}
.hero .tagline{margin-top:10px;font-size:clamp(10px,.85vw,13px);font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--link);white-space:nowrap}
.scroll-cue{position:absolute;left:50%;bottom:2px;transform:translateX(-50%);color:var(--link);font-size:20px;line-height:1;text-decoration:none;animation:cuefade 2.4s ease-in-out infinite}
@keyframes cuefade{0%,100%{opacity:.2}50%{opacity:1}}
@media(max-width:767px){
  /* mobile: full-width image first, name/tagline below, centered (tagline may wrap) */
  .hero{padding:12px 0 18px}
  .hero-in{position:static;text-align:center;padding:14px 8px 0}
  .hero h1{font-size:clamp(21px,5.8vw,28px);letter-spacing:.3px}
  .hero .tagline{font-size:10.5px;letter-spacing:1.2px;margin-top:8px;white-space:normal}
  .scroll-cue{display:none}
}
/* mobile nav: stack logo + wrapped links */
@media(max-width:700px){
  .nav{position:static}
  .nav-in{flex-direction:column;height:auto;padding:10px 14px;gap:2px}
  .nav-logo{font-size:18px}
  .nav-links{justify-content:center;gap:0}
  .nav-links a{font-size:12px;padding:6px 7px}
}

/* ---------- sections ---------- */
.sec{padding:88px 0}
/* intro right after hero: tighter top padding so the heading peeks above the fold */
#intro{padding-top:28px}
#intro .split{grid-template-columns:7fr 5fr;gap:48px;align-items:center}
#intro h2{font-size:clamp(32px,2.5vw,36px);margin-bottom:12px}
#intro .img-side{position:relative;align-self:stretch;min-height:320px}
#intro .img-side img{position:absolute;inset:0;margin:auto;height:100%;max-height:440px;width:auto;aspect-ratio:4/5;object-fit:cover;border-radius:12px}
.sec.alt{background:var(--bg-alt)}
.sec-tight{padding:56px 0}
h2{font-family:var(--serif);font-weight:700;font-size:clamp(28px,2.4vw,32px);line-height:1.2;margin-bottom:14px;color:var(--head)}
h3{font-family:var(--serif);font-weight:600;font-size:24px;line-height:1.25;margin-bottom:12px;color:var(--head)}
/* site-wide typography: 17px / 1.7 / 62ch measure */
p{max-width:62ch}
p.lead{font-size:21px;line-height:1.65;max-width:62ch}
.kicker{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--link);margin-bottom:10px}
p.lead{font-size:21px;line-height:1.65;max-width:820px}
.rule{width:64px;height:3px;background:var(--accent);border:0;margin:22px 0 30px}

/* alternating split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.split.rev{grid-template-columns:.9fr 1.1fr}
.split .img-side img{border-radius:10px}
/* picture book: cover 5/12 + intro 7/12, vertically centered; spreads grid below */
.book-top{grid-template-columns:5fr 7fr;align-items:center}
.book-cover img{width:100%;height:auto;display:block;border-radius:12px}
.book-spreads{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px;align-items:start}
.book-spreads .spread{margin:0}
.book-spreads img{width:100%;aspect-ratio:3/2;object-fit:contain;border:1px solid #E6DED2;border-radius:12px;display:block;cursor:zoom-in;background:#fff}
@media(max-width:900px){.book-top{grid-template-columns:1fr}}
@media(max-width:1000px) and (min-width:768px){.book-spreads{grid-template-columns:repeat(2,1fr)}}
/* behind-the-book travel photo strip (Golden Gate / Wudang / summer camp) */
.book-strip{display:flex;flex-wrap:wrap;gap:22px;justify-content:center;align-items:center;margin-top:26px}
.book-strip figure{margin:0}
.book-strip img{height:228px;width:auto;object-fit:contain;border:1px solid #E6DED2;border-radius:12px;display:block;cursor:zoom-in;background:#fff}
@media(max-width:640px){
  .book-strip{gap:14px}
  .book-strip img{height:auto;max-height:200px;max-width:100%}
}
@media(max-width:767px){
  .book-spreads{grid-template-columns:1fr}
}

/* ink painting: 3-step process block + 3x3 uniform grid (4:5) + exhibitions block */
.ink-process{max-width:760px;margin-top:26px}
.process-eyebrow{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#9A5B1C;margin-bottom:14px}
.proc-label{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#9A5B1C;margin-bottom:6px}
.proc-row{display:flex;gap:12px}
.proc-row figure{margin:0;flex:1 1 0;min-width:0}
.proc-row img{width:100%;height:240px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:zoom-in;display:block}
.proc-full{margin:12px 0 0}
.proc-full img{width:100%;height:auto;max-height:280px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:zoom-in;display:block;margin:0 auto}
.proc-cap{margin-top:12px;font-size:14px;font-style:italic;color:#6B6B6B}
.proc-cap mark{font-style:normal}
@media(max-width:640px){
  .proc-row{flex-direction:column}
  .proc-row img{height:auto;max-height:420px}
}
.ink-gal{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:760px;margin-top:26px}
.ink-gal figure{margin:0;cursor:zoom-in}
.ink-gal img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--card)}
.ink-gal .from-top img{object-position:center top}
/* community poster wall (Dunhuang for Kids): vertical posters, native ratio, never cropped */
.poster-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px 16px;margin-top:34px;align-items:start}
.poster-grid figure{margin:0}
.poster-grid img{width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:zoom-in;box-shadow:var(--shadow)}
.poster-grid figcaption{font-size:13px;line-height:1.45;margin-top:8px;color:#5A5A5A}
@media(max-width:1000px){.poster-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.poster-grid{grid-template-columns:repeat(2,1fr);gap:18px 12px}}

/* awards certificate wall: square frames, certificates shown whole (contain), full size in lightbox */
.cert-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.cert-wall figure{margin:0}
.cert-wall img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px;cursor:zoom-in}
.cert-wall figcaption{font-size:13px;line-height:1.5}
@media(max-width:900px){.cert-wall{grid-template-columns:repeat(2,1fr)}}

.exhibit{margin-top:36px;max-width:760px}
.exhibit-eyebrow{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#9A5B1C;margin-bottom:16px}
.exhibit-in{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.cert-fig{margin:0}
.cert-fig img{width:200px;max-width:200px;height:auto;border:1px solid #E6DED2;border-radius:8px;display:block;cursor:zoom-in;background:#fff}
.exhibit-cap{font-size:15px;color:#464646}
@media(max-width:640px){
  .exhibit-in{grid-template-columns:1fr;justify-items:center;text-align:center}
  .cert-fig img{width:160px;max-width:160px}
  .exhibit-cap{max-width:320px}
}
/* editorial note under the ink painting gallery */
.ink-note{margin-top:26px;max-width:760px;font-size:13.5px;line-height:1.65;font-style:italic;color:#6B6B6B;border-left:2px solid #E6DED2;padding-left:12px}
.ink-note b{font-weight:600;font-style:normal;color:#464646}

/* from-life row: plein-air photo beside the finished painting */
.life-row{display:flex;gap:16px;justify-content:center;margin-top:26px;max-width:760px}
.life-row figure{margin:0}
.life-row img{height:480px;width:auto;object-fit:contain;border:1px solid var(--line);border-radius:12px;display:block;cursor:zoom-in;background:#fff}
/* single centered figure (calligraphy photo moved out of the 3x3 grid) */
.solo-fig{margin-top:22px;max-width:760px;display:flex;justify-content:center}
.solo-fig figure{margin:0}
.solo-fig img{max-width:440px;width:100%;height:auto;object-fit:contain;border:1px solid var(--line);border-radius:10px;display:block;cursor:zoom-in;background:#fff}
@media(max-width:640px){
  .life-row{flex-direction:column;align-items:center}
  .life-row img{height:auto;max-width:100%;max-height:420px}
}

@media(max-width:900px){.split,.split.rev{grid-template-columns:1fr;gap:32px}}

/* fade-in */
.fade{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.fade.in{opacity:1;transform:none}

/* ---------- stat cards ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:1000px){.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.stats{grid-template-columns:1fr}}
.stat{border:1px solid var(--line);border-radius:12px;padding:28px 26px;background:var(--card);box-shadow:var(--shadow)}
.stat .num{font-family:var(--serif);font-weight:700;font-size:42px;line-height:1.1;color:var(--accent)}
.stat .t{font-weight:600;margin:10px 0 8px;color:var(--text)}
.stat .d{font-size:15px;color:#464646}

/* ---------- highlight cards ---------- */
.hl{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:1000px){.hl{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.hl{grid-template-columns:1fr}}
.hl a{display:block;text-decoration:none;border:1px solid var(--line);border-radius:12px;padding:24px;background:var(--card);
  box-shadow:var(--shadow);transition:transform .25s,border-color .25s}
.hl a:hover{transform:translateY(-4px);border-color:var(--accent)}
.hl .tag{font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--link);margin-bottom:10px}
.hl .txt{font-size:15.5px;color:#3A3A3A}

/* ---------- details (Read more) ---------- */
details.strand{border:1px solid var(--line);border-radius:12px;background:var(--card);box-shadow:var(--shadow);padding:0;margin-top:20px;overflow:hidden}
details.strand summary{cursor:pointer;list-style:none;padding:22px 28px;display:flex;justify-content:space-between;align-items:center;gap:16px}
details.strand summary::-webkit-details-marker{display:none}
details.strand summary h3{margin:0}
details.strand .more{font-size:13px;font-weight:600;letter-spacing:1px;color:var(--link);white-space:nowrap}
details.strand[open] .more .closed{display:none}
details.strand:not([open]) .more .open{display:none}
details.strand .body{padding:0 28px 26px}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:36px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--accent);opacity:.6}
.tl-item{position:relative;padding-bottom:44px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-31px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--bg)}
.tl-media{margin-top:22px;display:grid;gap:18px}
.tl-media figure{margin:0}
figcaption,.figcap{font-size:13.5px;color:#5A5A5A;margin-top:8px;max-width:720px}
figure{margin:0}

/* ---------- carousel ---------- */
.car{position:relative}
.car-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;border-radius:12px;scrollbar-width:none}
.car-track::-webkit-scrollbar{display:none}
.car-track img{scroll-snap-align:start;width:min(720px,86vw);border-radius:12px;flex:0 0 auto}
.car-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:20px;cursor:pointer;z-index:5;box-shadow:var(--shadow)}
.car-btn.prev{left:-8px}.car-btn.next{right:-8px}
.car-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ---------- gallery / lightbox ---------- */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1000px){.gal{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.gal{grid-template-columns:repeat(2,1fr)}}
.gal figure{cursor:zoom-in;border-radius:10px;overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.gal img{width:100%;height:240px;object-fit:cover;transition:transform .3s}
.gal figure:hover img{transform:scale(1.04)}
.lb{position:fixed;inset:0;background:rgba(18,20,23,.94);display:none;align-items:center;justify-content:center;z-index:100;padding:40px;flex-direction:column}
.lb.open{display:flex}
.lb figure{display:flex;flex-direction:column;align-items:center;gap:14px;max-width:100%}
.lb img{max-height:80vh;max-width:92vw;border-radius:8px}
.lb-cap{color:#F1EADF;font-size:14.5px;line-height:1.5;text-align:center;max-width:62ch;padding:0 12px}
.lb-x{position:absolute;top:18px;right:26px;font-size:34px;color:#fff;background:none;border:0;cursor:pointer;z-index:2}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);color:#fff;font-size:28px;line-height:1;cursor:pointer;z-index:2}
.lb-nav:hover{background:rgba(255,255,255,.2)}
.lb-prev{left:18px}.lb-next{right:18px}
@media(max-width:640px){.lb-nav{width:44px;height:44px;font-size:24px}.lb-prev{left:8px}.lb-next{right:8px}}
img[data-caption],.grid-gal img,.pair-photos img,.genai-fig img{cursor:zoom-in}

/* ---------- competition gallery grid (robotics) ---------- */
.grid-gal{display:grid;grid-template-columns:1.15fr 1fr 1fr;grid-auto-rows:minmax(200px,250px);gap:12px}
.grid-gal .feat{grid-column:1;grid-row:span 2}
.grid-gal .wide{grid-column:1/-1}
.grid-gal figure{overflow:hidden;border-radius:12px;margin:0}
.grid-gal img{width:100%;height:100%;object-fit:cover;display:block;border-radius:12px}
@media(max-width:760px){
  .grid-gal{grid-template-columns:1fr 1fr;grid-auto-rows:auto}
  .grid-gal .feat{grid-column:span 2;grid-row:auto;aspect-ratio:4/3}
  .grid-gal .wide{grid-column:auto}
  .grid-gal figure{aspect-ratio:4/3}
}

/* ---------- passing-it-on photos ---------- */
.pair-photos{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pair-photos img{width:100%;aspect-ratio:4/3;max-height:320px;object-fit:cover;border-radius:12px}
.quad-photos{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.quad-photos img{width:100%;aspect-ratio:4/3;max-height:320px;object-fit:cover;border-radius:12px}
.split.mentor{grid-template-columns:5fr 7fr;align-items:center}
.split.mentor.rev{grid-template-columns:7fr 5fr}
.split.equal{grid-template-columns:1fr 1fr}
@media(max-width:900px){.split.mentor,.split.mentor.rev,.split.equal{grid-template-columns:1fr}}

/* ---------- placeholder ---------- */
.ph{border:2px dashed var(--accent);border-radius:12px;background:#FBF4E9;color:#6E3F0A;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
    font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:13.5px;text-align:center;padding:22px;min-height:150px}
.ph b{letter-spacing:1.5px;font-size:11px;opacity:.85}
mark,.mk{background:#F6E3C4;color:#6E3F0A;padding:1px 5px;border-radius:4px;font-weight:600}

/* ---------- mogao research charts (community) ---------- */
.mogao-fig{margin:30px auto 0;max-width:1000px}
.mogao-fig img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:12px;cursor:zoom-in;background:#fff}
.mogao-fig figcaption{font-size:13.5px;color:#5A5A5A;margin-top:8px;max-width:none}
ul.mogao-fixes{margin:10px 0 0;padding-left:22px;max-width:62ch}
ul.mogao-fixes li{padding:4px 0;font-size:16px;line-height:1.65}
ul.mogao-fixes li::marker{color:var(--accent)}

/* ---------- lists ---------- */
ul.award{list-style:none;margin-top:18px}
ul.award li{padding:12px 0;border-bottom:1px solid var(--line);font-size:16.5px}
ul.award li span{color:var(--accent);margin-right:10px}

/* ---------- build cards ---------- */
.builds{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
@media(max-width:1000px){.builds{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.builds{grid-template-columns:1fr}}
.bcard{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--card);box-shadow:var(--shadow);display:flex;flex-direction:column}
.bcard .shot{height:210px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg-alt);gap:2px}
.bcard .shot img{width:100%;height:100%;object-fit:cover}
.bcard .shot.two picture{display:block;width:50%;height:100%}
.bcard .shot.two img{width:100%;height:100%;object-fit:cover}
.bcard .bd{padding:18px 20px 20px}
.bcard .bd h3{font-size:21px;margin-bottom:6px}
.bcard .bd p{font-size:14.5px;color:#464646}

/* builds: labeled image pairs */
.shot.bpair{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;padding:16px;background:var(--card)}
.shot.bpair .pair-label{display:block;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--link);margin:0 0 8px}
.shot.bpair picture{display:block}
.shot.bpair img{width:100%;object-fit:contain;border:1px solid var(--border);border-radius:12px;background:var(--bg-alt)}
.shot.bpair.roblox img{height:360px}
.shot.bpair.dream{padding:0;align-items:center}
.shot.bpair.dream img{height:480px}
@media(max-width:640px){.page-builds .wrap{padding:0 16px}}
@media(max-width:620px){
  .shot.bpair.roblox{grid-template-columns:1fr}
  .shot.bpair img{height:auto;max-height:360px}
  .shot.bpair.dream{grid-template-columns:repeat(2,1fr)}
  .shot.bpair.dream img{height:auto;max-height:480px}
}
@media(max-width:367px){.shot.bpair.dream{grid-template-columns:1fr}}

/* ---------- compare block ---------- */
.compare{display:flex;align-items:center;gap:28px;margin:30px 0;flex-wrap:wrap}
.compare .n{font-family:var(--serif);font-weight:700;font-size:clamp(52px,7vw,96px);line-height:1;color:var(--head)}
.compare .n.to{color:var(--accent)}
.compare .n.from{opacity:.5}
.compare .arrow{font-size:44px;color:var(--accent)}
.compare .sub{font-size:14px;color:#5A5A5A}

/* ---------- footer ---------- */
footer{background:var(--foot);color:var(--text);padding:34px 0;margin-top:40px}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14.5px}
/* #9A5B1C on the #EFE7DA footer measures 4.40:1 (just under AA 4.5); darkened one step to 5.06:1 */
footer a{color:#8E5218}

/* awards thumbs */
.award-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:26px}
@media(max-width:800px){.award-thumbs{grid-template-columns:repeat(2,1fr)}}
.award-thumbs figure{cursor:zoom-in}
.award-thumbs img{border-radius:10px;border:1px solid var(--line);height:230px;width:100%;object-fit:cover;background:#fff;box-shadow:var(--shadow)}

/* rank pill row on robotics */
.rankbar{height:14px;border-radius:7px;background:linear-gradient(90deg,#2F6F62,var(--accent));margin:14px 0 8px;position:relative}
.rankbar i{position:absolute;top:-7px;width:3px;height:28px;background:#fff;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.15)}

/* ---------- dunhuang music ensemble (research page) ---------- */
.dh-music-fig{margin:24px auto 0;max-width:1200px}
.dh-music-fig>picture img{width:100%;height:auto;object-fit:contain;display:block;margin:0 auto;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:zoom-in}
.dh-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 12px;margin:16px 0 0;padding:0}
.dh-stats .chip{display:inline-flex;align-items:baseline;gap:7px;background:var(--card);border:1px solid var(--border);border-radius:999px;padding:7px 15px;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.dh-stats .chip b{font-family:var(--serif);font-weight:700;font-size:19px;line-height:1;color:var(--accent)}
.dh-stats .chip small{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text)}
.dh-cap{font-style:italic;font-size:14px;color:#6B6B6B;line-height:1.65;max-width:880px;margin:14px auto 0}
.dh-link{margin:12px 0 0;text-align:center}
.dh-link a{color:var(--link);font-weight:600;font-size:15px}
.dh-link a:hover{text-decoration:underline}

/* --- Food on the Wall: map row + sanzi pair --- */
.dh-food-fig{margin:24px auto 0;max-width:1200px}
.dh-food-fig>picture img{width:100%;height:auto;object-fit:contain;display:block;margin:0 auto;border:1px solid var(--border);border-radius:12px;background:#fff}
.dh-food-pair{margin:20px auto 0;max-width:1200px;display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.dh-food-pair .fp-label{display:block;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--link);margin:0 0 8px}
.dh-food-pair .fp-col picture img{display:block;width:100%;height:460px;border:1px solid var(--border);border-radius:12px;background:#fff}
.dh-food-pair .fp-contain{object-fit:contain}
.dh-food-pair .fp-cover{object-fit:cover;object-position:center 70%}
.dh-food-pair .dh-cap{margin:14px 0 0;text-align:left}
@media(max-width:768px){
  .dh-food-pair{grid-template-columns:1fr;gap:20px}
  .dh-food-pair .fp-col picture img{height:auto;max-height:420px}
}

/* lightbox image: smooth pinch-zoom transform */
.lb img{transition:transform .15s ease;touch-action:none;will-change:transform}

/* research page (mobile): poster figure must not overflow small screens */
@media(max-width:640px){.tl-media img{max-width:100% !important}}

/* home intro (mobile): stack heading, text, then photo */
@media(max-width:767px){
  #intro .split{grid-template-columns:1fr;gap:24px}
  #intro .img-side{position:static;min-height:0}
  #intro .img-side img{position:static;width:100%;height:auto;max-height:420px}
}