:root{
  --bg:#f5f7f9;--paper:#fff;--ink:#10202a;--muted:#5e6d75;--line:#dbe2e7;--accent:#0d6070;--accent2:#173f61;--soft:#e8f1f3;--radius:18px;--shadow:0 16px 45px rgba(16,32,42,.08)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:inherit}.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:28px;padding:14px clamp(18px,4vw,64px);background:rgba(245,247,249,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,226,231,.85)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--ink);color:#fff;font-weight:800;letter-spacing:.06em}.brand strong,.brand small{display:block}.brand small{font-size:.72rem;color:var(--muted)}nav{display:flex;gap:22px}nav a{text-decoration:none;font-size:.92rem;color:var(--muted)}nav a:hover{color:var(--ink)}.lang-toggle{border:1px solid var(--line);background:var(--paper);padding:8px 11px;border-radius:10px;font-weight:700;cursor:pointer}.section-shell{width:min(1180px,calc(100% - 36px));margin-inline:auto}.hero{min-height:76vh;display:grid;grid-template-columns:1.4fr .6fr;gap:70px;align-items:center;padding:90px 0 70px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.76rem;font-weight:800;color:var(--accent);margin:0 0 14px}.hero h1{font-size:clamp(3.2rem,8vw,7rem);line-height:.95;letter-spacing:-.06em;margin:0 0 28px}.hero h1 em{font-style:normal;font-size:.36em;letter-spacing:-.02em;color:var(--muted);font-weight:600}.lede{font-size:1.12rem;max-width:760px;color:#3e515b}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;text-decoration:none;font-weight:700;font-size:.92rem}.button.primary{background:var(--ink);color:#fff}.button.secondary{background:var(--paper);border:1px solid var(--line)}.hero-card{background:linear-gradient(160deg,var(--accent2),#071821);color:#fff;padding:28px;border-radius:26px;box-shadow:var(--shadow);display:grid;gap:10px}.metric{padding:18px 8px;border-bottom:1px solid rgba(255,255,255,.14)}.metric:last-child{border-bottom:0}.metric span{display:block;color:#bcd2dc;font-size:.75rem;letter-spacing:.12em}.metric b{display:block;font-size:2.6rem;line-height:1.1}.metric small{color:#dfe9ee}.section-block{padding:86px 0}.section-heading{max-width:820px;margin-bottom:36px}.section-heading h2{font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.04em;margin:0 0 16px}.section-heading>p:last-child{color:var(--muted)}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.research-grid article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}.step{font-family:ui-monospace,monospace;font-size:.78rem;color:var(--accent);font-weight:800}.research-grid h3{font-size:1.22rem;margin:26px 0 8px}.research-grid p{color:var(--muted);margin:0}.thresholds{margin-top:22px;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}.thresholds div{padding:20px;border-right:1px solid var(--line)}.thresholds div:last-child{border:0}.thresholds b,.thresholds span{display:block}.thresholds span{font-size:.86rem;color:var(--muted);margin-top:6px}.methods{position:relative}.method-card{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;margin:34px 0;background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:0 8px 30px rgba(16,32,42,.04)}.method-card.reverse .method-text{order:2}.method-card.reverse figure{order:1}.method-index{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--soft);color:var(--accent);font-weight:800}.method-text h3{font-size:1.65rem;line-height:1.2;margin:16px 0}.method-text p{color:var(--muted)}.formula{font-family:"STIX Two Math","Cambria Math",Georgia,serif;background:#f2f6f7;border-left:3px solid var(--accent);padding:12px 15px;margin:12px 0;border-radius:0 10px 10px 0;font-size:1.03rem;overflow-x:auto}.formula.compact{font-size:.96rem}.note{font-size:.92rem}.method-card figure,.gallery-grid figure{margin:0}.method-card img,.gallery-grid img{width:100%;height:auto;display:block;border-radius:14px;border:1px solid var(--line);background:#fff}.method-card figcaption,.gallery-grid figcaption{font-size:.82rem;color:var(--muted);margin-top:10px}.calculator{margin:54px 0;background:linear-gradient(145deg,#0c2a38,#0d6070);color:#fff;border-radius:26px;padding:34px}.calculator .eyebrow{color:#8cd0dc}.calculator>div:first-child p:last-child{color:#cae2e7}.input-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}.input-grid fieldset{border:1px solid rgba(255,255,255,.24);border-radius:14px;padding:16px}.input-grid legend{font-weight:800;padding:0 6px}.input-grid label{display:grid;grid-template-columns:32px 1fr;align-items:center;gap:8px;margin:8px 0}.input-grid input{width:100%;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);color:#fff;border-radius:9px;padding:9px;font:inherit}.calc-results{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.calc-results div{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);padding:15px;border-radius:14px}.calc-results span{display:block;font-size:.78rem;color:#cfe1e6}.calc-results strong{font-size:1.5rem}.warning{min-height:1.5em;color:#ffe4a8;margin-bottom:0}.gallery-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.pub-list{display:grid;gap:16px}.pub-card{display:grid;grid-template-columns:110px 1fr;gap:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}.pub-year{font:700 1.2rem ui-monospace,monospace;color:var(--accent)}.pub-card h3{margin:0 0 8px;font-size:1.2rem}.pub-card p{margin:5px 0}.muted{color:var(--muted)}.pub-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:13px}.pub-links a{font-size:.85rem;font-weight:700;color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}.timeline{border-left:1px solid var(--line);margin-left:90px}.timeline article{position:relative;display:grid;grid-template-columns:120px 1fr;gap:24px;margin:0 0 38px;padding-left:26px}.timeline article:before{content:"";position:absolute;left:-6px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--accent)}.timeline time{margin-left:-145px;font-family:ui-monospace,monospace;color:var(--accent);font-weight:700}.timeline h3{margin:0 0 6px}.timeline p{margin:0;color:var(--muted)}.site-footer{margin-top:70px;padding:38px clamp(18px,4vw,64px);border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;background:#eef2f4}.site-footer strong,.site-footer span{display:block}.site-footer span{font-size:.85rem;color:var(--muted)}.footer-links{display:flex;gap:18px;align-items:center}.footer-links a{text-decoration:none;color:var(--accent);font-weight:700;font-size:.88rem}
@media(max-width:900px){nav{display:none}.hero{grid-template-columns:1fr;gap:24px;min-height:auto;padding-top:65px}.hero-card{grid-template-columns:repeat(3,1fr)}.research-grid,.thresholds{grid-template-columns:1fr 1fr}.method-card,.method-card.reverse{grid-template-columns:1fr}.method-card.reverse .method-text,.method-card.reverse figure{order:initial}.input-grid,.calc-results{grid-template-columns:1fr 1fr}.gallery-grid{grid-template-columns:1fr}.timeline{margin-left:55px}}
@media(max-width:620px){.site-header{gap:12px}.brand small{display:none}.hero h1{font-size:3.3rem}.hero-card,.research-grid,.thresholds,.input-grid,.calc-results{grid-template-columns:1fr}.thresholds div{border-right:0;border-bottom:1px solid var(--line)}.method-card{padding:20px}.pub-card{grid-template-columns:1fr}.timeline{margin-left:18px}.timeline article{grid-template-columns:1fr;padding-left:22px}.timeline time{margin-left:0}.site-footer{flex-direction:column}}

/* v2: source-faithful research figure, experience outcomes, and honor gallery */
.framework-figure{margin:34px 0 0;background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 8px 30px rgba(16,32,42,.04)}
.framework-figure img{display:block;width:100%;height:auto;border-radius:12px;background:#fff}
.framework-figure figcaption{margin-top:10px;color:var(--muted);font-size:.86rem}
.source-note{margin:12px 0 0;padding:14px 16px;background:#eef4f5;border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:#4d6069;font-size:.9rem}
.award-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}
.award-tags span{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:var(--soft);color:var(--accent2);font-size:.78rem;font-weight:800;border:1px solid #d2e5e8}
.timeline article.with-award:before{box-shadow:0 0 0 5px rgba(13,96,112,.12)}
.honors-section{padding-bottom:95px}
.honor-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.honor-gallery figure{margin:0;background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 10px 32px rgba(16,32,42,.05)}
.honor-gallery figure:last-child:nth-child(odd){grid-column:1/-1;max-width:760px;width:100%;justify-self:center}
.honor-gallery a{display:block;background:#edf1f2;overflow:hidden}
.honor-gallery img{display:block;width:100%;height:auto;transition:transform .22s ease}
.honor-gallery a:hover img{transform:scale(1.012)}
.honor-gallery figcaption{padding:16px 18px 18px}
.honor-gallery figcaption strong,.honor-gallery figcaption span{display:block}
.honor-gallery figcaption strong{font-size:.95rem;line-height:1.45}
.honor-gallery figcaption span{margin-top:5px;color:var(--muted);font-size:.82rem}
@media(max-width:900px){.honor-gallery{grid-template-columns:1fr}.honor-gallery figure:last-child:nth-child(odd){grid-column:auto;max-width:none}}


/* v3: mentoring/collaboration and geoscience writing */
.people-strip{padding:4px 0 54px;display:grid;grid-template-columns:.8fr 1.7fr;gap:30px;align-items:start}
.people-intro h2{font-size:clamp(1.7rem,3vw,2.6rem);margin:0 0 10px;line-height:1.1;letter-spacing:-.03em}.people-intro>p:last-child{color:var(--muted);margin:0}
.people-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.person-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px;min-height:180px}.person-card.supervisor{border-top:4px solid var(--accent)}.person-card>span{display:block;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:800}.person-card h3{margin:20px 0 6px;font-size:1.22rem}.person-card p{margin:0;color:var(--muted);font-size:.9rem}
.award-tags a{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:var(--ink);color:#fff;text-decoration:none;font-size:.78rem;font-weight:800}
.literature-section{padding-top:76px}.literature-card{display:grid;grid-template-columns:1.35fr .65fr;gap:28px;background:linear-gradient(145deg,#fff,#eef4f5);border:1px solid var(--line);border-radius:26px;padding:34px;box-shadow:var(--shadow)}.literature-kicker{display:block;color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.literature-copy h3{font-size:clamp(2.3rem,5vw,4.8rem);letter-spacing:-.06em;line-height:.95;margin:16px 0 22px}.literature-copy p{max-width:760px;color:var(--muted)}.literature-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.literature-award{background:var(--ink);color:#fff;border-radius:20px;padding:24px;align-self:stretch;display:flex;flex-direction:column;justify-content:center}.literature-award>span{color:#a9c7d1;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:800}.literature-award strong{font-size:1.12rem;line-height:1.5;margin:16px 0}.literature-award p{margin:0;color:#d9e6eb;font-size:.9rem}.honor-work-link{display:inline-block;margin-top:10px;color:var(--accent);font-size:.82rem;font-weight:800;text-decoration:none;border-bottom:1px solid currentColor}
.poem-page{min-height:100vh}.poem-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(18px,4vw,64px);background:rgba(245,247,249,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.poem-header a{text-decoration:none;font-weight:800}.poem-shell{width:min(860px,calc(100% - 36px));margin:0 auto;padding:78px 0 90px}.poem-meta{text-align:center;margin-bottom:50px}.poem-meta .eyebrow{margin-bottom:18px}.poem-meta h1{font-family:Georgia,"Noto Serif SC","Songti SC",serif;font-size:clamp(3rem,8vw,6rem);line-height:1;letter-spacing:-.05em;margin:0 0 18px}.poem-meta p{color:var(--muted);margin:6px 0}.poem-body{max-width:620px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:26px;padding:clamp(28px,6vw,58px);box-shadow:var(--shadow)}.poem-stanza{font-family:Georgia,"Noto Serif SC","Songti SC",serif;font-size:clamp(1.08rem,2.2vw,1.28rem);line-height:2.05;margin:0 0 28px}.poem-stanza:last-of-type{margin-bottom:0}.poem-stanza span{display:block}.poem-recognition{max-width:620px;margin:24px auto 0;padding:20px 24px;border-radius:18px;background:var(--soft);border:1px solid #d2e5e8}.poem-recognition strong,.poem-recognition span{display:block}.poem-recognition span{color:var(--muted);font-size:.88rem;margin-top:5px}.poem-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:30px}
@media(max-width:900px){.people-strip{grid-template-columns:1fr}.people-grid{grid-template-columns:1fr 1fr}.literature-card{grid-template-columns:1fr}}
@media(max-width:620px){.people-grid{grid-template-columns:1fr}.literature-card{padding:22px}.poem-shell{padding-top:54px}}


/* V4: compact academic-network layout and explicit L** formula panel */
.people-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,.95fr)}
.person-card.academic-partners{display:flex;flex-direction:column;justify-content:flex-start}
.person-card.academic-partners h3{font-size:1.28rem;line-height:1.45;margin-bottom:0}
.lstar-equation-panel{margin-top:22px;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;align-items:center;background:linear-gradient(145deg,#f8fbfc,#edf4f5);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.lstar-equation-copy h3{font-size:1.4rem;margin:0 0 10px}.lstar-equation-copy>p:last-child{color:var(--muted);margin-bottom:0}.lstar-equations .formula{margin:8px 0}.formula-large{font-size:1.12rem;line-height:1.7}.lstar-equations .note{margin:10px 0 0;color:var(--muted)}
.work-list .work-card{position:relative}.work-list .pub-year{white-space:nowrap}.work-card h3{font-family:inherit}.work-card .muted{max-width:780px}
.work-date{font-family:ui-monospace,monospace;color:var(--accent);font-weight:700}
@media(max-width:900px){.people-grid{grid-template-columns:1fr 1fr}.lstar-equation-panel{grid-template-columns:1fr}}
@media(max-width:620px){.people-grid{grid-template-columns:1fr}.lstar-equation-panel{padding:20px}.formula-large{font-size:1rem}}

/* V5 */
.formula-primary{font-weight:800;color:var(--accent-strong,#174d54);margin-top:13px}.honor-gallery img{background:#f7f5ef;object-fit:contain;object-position:center}

/* V6: public email links and compact footer wrapping */
.footer-links{flex-wrap:wrap;justify-content:flex-end;max-width:760px;row-gap:8px}
@media(max-width:620px){.footer-links{justify-content:flex-start;align-items:flex-start}}

/* V7 literature archive and public email refinements */
.literature-meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px}.literature-time{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--accent);font:800 .82rem ui-monospace,monospace}.literature-meta-row .literature-kicker{margin:0}.archive-shell{padding-bottom:72px}.archive-section{margin-top:56px}.compact-heading{margin-bottom:22px}.compact-heading h2{font-size:clamp(1.7rem,3vw,2.5rem)}.archive-empty{border:1px dashed var(--line);border-radius:18px;padding:26px;background:rgba(255,255,255,.55);color:var(--muted)}.email-link{white-space:nowrap}.poem-footer,.archive-footer{margin-top:54px}.archive-footer{width:100%}@media(max-width:900px){.footer-links{align-items:flex-start}.email-link{white-space:normal}}
/* V7 footer email layout refinement */
.email-link span{display:inline!important}
@media(max-width:620px){.site-footer .footer-links{flex-direction:column;align-items:flex-start;gap:8px}.site-footer .footer-links a{display:block}.email-link{white-space:normal}}

/* V8: stronger subsection typography, tighter vertical rhythm, and one-line publications heading */
.section-block{padding:60px 0}
.section-heading{margin-bottom:26px}
.section-heading h2{font-size:clamp(2.2rem,4.2vw,3.85rem);margin-bottom:12px}
.eyebrow{font-size:.82rem;margin-bottom:10px}
.hero{min-height:68vh;padding:68px 0 46px;gap:54px}
.hero h1{margin-bottom:22px}
.hero-actions{margin-top:24px}
.people-strip{padding:2px 0 38px}
.people-intro h2{font-size:clamp(1.9rem,3.2vw,2.8rem)}
.research-grid h3{font-size:1.3rem;margin:20px 0 7px}
.method-card{margin:24px 0;padding:30px}
.method-text h3{font-size:1.76rem;margin:13px 0}
.calculator{margin:38px 0;padding:30px}
.pub-list{gap:13px}
.pub-card{padding:22px}
.pub-card h3{font-size:1.28rem;line-height:1.4}
.timeline article{margin-bottom:30px}
.literature-section{padding-top:56px}
.literature-card{padding:30px}
.lstar-equation-panel{margin-top:18px;padding:22px}
.lstar-equation-copy h3{font-size:1.5rem}
.honors-section{padding-bottom:66px}
.honor-gallery{gap:18px}
.site-footer{margin-top:46px;padding-top:30px;padding-bottom:30px}

/* Keep the Chinese publications theme line on one row on desktop. */
#publications .section-heading{max-width:none}
#publications .section-heading h2{font-size:clamp(1.85rem,2.45vw,2.55rem);letter-spacing:-.035em;white-space:nowrap}

@media(max-width:900px){
  .section-block{padding:50px 0}
  .hero{padding-top:54px;padding-bottom:38px}
  #publications .section-heading h2{font-size:clamp(1.9rem,4vw,2.45rem);white-space:normal}
}
@media(max-width:620px){
  .section-block{padding:42px 0}
  .section-heading{margin-bottom:20px}
  .section-heading h2{font-size:2.15rem}
  .method-text h3{font-size:1.52rem}
  .pub-card h3{font-size:1.2rem}
  .literature-section{padding-top:42px}
  .literature-card{padding:20px}
  .site-footer{margin-top:34px}
  #publications .section-heading h2{font-size:1.85rem;line-height:1.15}
}