/* Photographic water, a quiet reading bank, and five ways into the work. */
:root{--ink:#293337;--text:#535e63;--muted:#687477;--accent:#435e66;--line:#dce1df;--paper:#f7f7f5;--soft:#edf0ef;background:var(--paper)}
.river-hero{--river-page:clamp(24px,4.2vw,76px);position:relative;min-height:max(900px,100svh);display:flex;flex-direction:column;isolation:isolate;overflow:hidden;background:#eeefeb;color:#354247}
.river-hero .wrap{width:calc(100% - var(--river-page)*2);max-width:1600px;margin-inline:auto}
.river-hero .river-water-image,.river-hero #water,.river-hero .river-reading-light{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.river-hero .river-water-image{z-index:-3;background:#eeefeb url('/assets/river/river-texture.png') center/cover no-repeat}
.river-hero #water{z-index:-2;opacity:0;transition:opacity 1.5s ease}
html[data-water=ready] .river-hero #water{opacity:1}
.river-hero .river-reading-light{z-index:-1;background:linear-gradient(90deg,rgba(247,247,242,.74),rgba(247,247,242,.47) 28%,rgba(247,247,242,.10) 47%,transparent 63%),linear-gradient(0deg,rgba(247,247,242,.98),rgba(247,247,242,.72) 11%,rgba(247,247,242,.04) 32%,transparent 56%)}
.river-hero .header{height:90px;min-height:90px;justify-content:flex-start;gap:65px;position:relative}
.river-hero .header-controls{display:flex;align-items:center;justify-content:space-between;gap:36px;flex:1}
.river-hero .header nav{gap:36px;color:#354247}
.river-hero .header nav a{border-bottom:1px solid transparent;padding:8px 0}
.river-hero .header nav a:hover{border-color:#8a9798;color:#304d56}
.river-hero .language-switch{border:0;background:none;padding:0;border-radius:0;gap:7px}
.river-hero .language-switch button{border-radius:0;background:none;box-shadow:none;min-width:auto;padding:9px 3px;color:#354247;font-size:13px;opacity:.78}
.river-hero .language-switch button[aria-pressed=true]{opacity:1;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.river-hero .language-switch button+button::before{content:'/';display:inline-block;margin-right:12px;opacity:.35;text-decoration:none}
html[lang] .river-hero .intro{display:block;padding:47px 0 0;min-height:500px;position:relative;max-width:1600px}
html[lang] .river-hero .intro h1{font-family:var(--font-display);font-size:clamp(47px,4.2vw,65px);line-height:1.08;letter-spacing:-.025em;font-weight:500;color:#273135;max-width:780px}
html[lang=zh-CN] .river-hero .intro h1{font-family:'Portfolio Song',serif;font-size:clamp(48px,4.15vw,64px);font-weight:400;letter-spacing:.045em;line-height:1.45;max-width:720px}
.river-hero .river-translation{font-family:'Portfolio Cormorant',serif;font-size:clamp(26px,2.2vw,34px);font-weight:400;line-height:1.13;margin-top:16px;letter-spacing:-.02em;color:#3b4547}
.river-hero .river-translation-zh{display:none}
html[lang=en] .river-hero .river-translation{font-family:'Portfolio Song',serif;font-size:19px;line-height:1.7;letter-spacing:.05em;margin-top:24px}
html[lang=en] .river-hero .river-translation-en{display:none}
html[lang=en] .river-hero .river-translation-zh{display:inline}
html[lang] .river-hero .intro-copy{padding:0;margin-top:28px;max-width:470px}
html[lang] .river-hero .intro-context{font-size:14px;letter-spacing:.035em;line-height:1.8;color:#465457;font-weight:400}
html[lang] .river-hero .intro-body{font-size:12px;max-width:420px;line-height:1.8;margin-top:5px;color:#59666a}
.river-hero .river-actions{display:flex;align-items:center;gap:36px;flex-wrap:wrap;margin-top:15px}
html[lang] .river-hero .intro-link{display:inline-flex;align-items:center;gap:40px;border-bottom:1px solid #879495;padding:13px 0 10px;margin:0;font-size:14px;color:#35494f}
.river-hero .intro-link span{font-size:19px;line-height:1;transition:transform .4s}
.river-hero .intro-link:hover span{transform:translateY(3px)}
.river-hero .audio-control{display:inline-flex;align-items:center;gap:10px;vertical-align:middle;height:auto;margin:0;padding:9px 0;border:0;border-radius:0;background:none;color:#3c4c51;font-family:'Portfolio Cormorant',serif;font-size:18px;line-height:1.2;cursor:pointer}
.river-hero .audio-glyph{position:relative;display:flex;align-items:center;justify-content:center;gap:2px;height:33px;width:33px;border:1px solid rgba(48,66,72,.55);border-radius:50%;transition:background .3s,border-color .3s}
.river-hero .audio-control:hover .audio-glyph{background:rgba(255,255,255,.38);border-color:#354f59}
.river-hero .audio-glyph i{display:block;width:1px;height:8px;background:currentColor;transform-origin:center}
.river-hero .audio-glyph i:nth-child(2){height:13px}.river-hero .audio-glyph i:nth-child(3){height:10px}.river-hero .audio-glyph i:nth-child(4){height:6px}
.river-hero .audio-control:not([data-audio-state=playing]) .audio-glyph i{display:none}
.river-hero .audio-control:not([data-audio-state=playing]) .audio-glyph::after{content:'';width:0;height:0;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:6px solid currentColor;margin-left:2px}
.river-hero .audio-control[data-audio-state=playing] i{animation:river-ambient-meter 1.3s ease-in-out infinite alternate}
.river-hero .audio-control[data-audio-state=playing] i:nth-child(2){animation-delay:-.5s}.river-hero .audio-control[data-audio-state=playing] i:nth-child(3){animation-delay:-.9s}
.river-hero .audio-control[data-audio-state=loading]{opacity:.6}.river-hero .audio-control[data-audio-state=error] .audio-glyph{border-style:dashed}
@keyframes river-ambient-meter{from{transform:scaleY(.45)}to{transform:scaleY(1)}}
.river-hero .river-projects{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:30px;padding:64px 0 22px;margin-top:auto;position:relative;isolation:isolate}
.river-hero .river-projects::before{content:'';position:absolute;inset:0 calc(-1 * var(--river-page));z-index:-1;pointer-events:none;background:linear-gradient(0deg,rgba(247,247,242,.98),rgba(247,247,242,.84) 62%,transparent)}
.river-hero+.work{padding-top:32px}
.river-hero .river-project{position:relative;display:block;padding:0 0 6px;min-height:155px;transition:color .4s;min-width:0;color:#293b41}
.river-hero .river-bank{display:block;width:1px;height:32px;background:linear-gradient(transparent,#8a9899);margin:0 0 16px 2px}
.river-hero .river-project:nth-child(2){padding-top:15px}.river-hero .river-project:nth-child(3){padding-top:4px}.river-hero .river-project:nth-child(4){padding-top:20px}
.river-hero .river-project h2{font-family:var(--font-display);font-size:clamp(22px,1.95vw,30px);font-weight:500;letter-spacing:-.015em;line-height:1.15;overflow-wrap:break-word}
html[lang=zh-CN] .river-hero .river-project[href='#nutrition'] h2{font-family:'Portfolio Song',serif;font-size:clamp(19px,1.6vw,25px);line-height:1.4;letter-spacing:.02em}
.river-hero .river-category{margin-top:8px;font-size:12px;letter-spacing:.035em;color:#5d6b6f;line-height:1.5}
.river-hero .river-detail{font-size:12px;line-height:1.7;max-width:220px;margin-top:10px;color:#46595e;opacity:0;transform:translateY(4px);transition:opacity .4s,transform .4s;min-height:40px}
.river-hero .river-arrow{position:absolute;right:0;top:44px;font-size:17px;opacity:0;transform:translate(-4px,4px);transition:opacity .4s,transform .4s}
.river-hero .river-project:hover,.river-hero .river-project:focus-visible{color:#1e4651}
.river-hero .river-project:hover .river-detail,.river-hero .river-project:focus-visible .river-detail,.river-hero .river-project:hover .river-arrow,.river-hero .river-project:focus-visible .river-arrow{opacity:1;transform:none}
.river-hero .river-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid rgba(86,110,117,.18);padding:16px 0 22px;font-size:13px;color:#57676c}
.river-hero .motion-control{display:inline-grid;place-items:center;width:34px;height:34px;border:1px solid rgba(86,110,117,.3);border-radius:50%;padding:9px;background:transparent;color:#52696f;cursor:pointer}
.river-hero .motion-control svg{display:block;width:12px;height:12px;fill:currentColor}.river-hero .motion-control .motion-play{display:none}.river-hero .motion-control[data-paused=true] .motion-pause{display:none}.river-hero .motion-control[data-paused=true] .motion-play{display:block}.river-hero .motion-control:hover{background:#ffffff70}.river-hero .motion-control:disabled{opacity:.6;cursor:default}
@media(min-width:1700px){.river-hero{min-height:max(1024px,100svh)}html[lang] .river-hero .intro{padding-top:70px}.river-hero .river-projects{padding-top:110px}}
@media(max-width:1100px){.river-hero{min-height:max(850px,100svh)}.river-hero .header{gap:40px}.river-hero .header nav{gap:27px}html[lang] .river-hero .intro{padding-top:42px;min-height:465px}html[lang=zh-CN] .river-hero .intro h1{font-size:51px}.river-hero .river-projects{gap:20px;padding-top:55px}.river-hero .river-project h2{font-size:23px}.river-hero .river-category,.river-hero .river-detail{font-size:11px}.river-hero .river-arrow{display:none}}
@media(min-width:761px) and (max-height:850px){.river-hero{min-height:max(780px,100svh)}.river-hero .header{height:75px;min-height:75px}html[lang] .river-hero .intro{padding-top:22px;min-height:410px}html[lang] .river-hero .intro h1{font-size:clamp(46px,4vw,59px)}html[lang=zh-CN] .river-hero .intro h1{font-size:clamp(44px,3.9vw,58px);line-height:1.35}.river-hero .river-translation{font-size:28px;margin-top:13px}.river-hero .river-projects{padding-top:34px;padding-bottom:12px}}
@media(max-width:760px){.river-hero{--river-page:25px;min-height:1080px}.river-hero .header{height:88px;min-height:88px;gap:24px;align-items:center;padding:0}.river-hero .header-controls{gap:15px}.river-hero .header nav{position:static;gap:19px;font-size:12px}.river-hero .header nav a{padding:8px 0}.river-hero .header nav a:nth-child(2){display:none}.river-hero .language-switch{gap:3px}.river-hero .language-switch button{font-size:11px;padding:9px 1px;min-height:34px}.river-hero .language-switch button+button::before{margin-right:7px}html[lang] .river-hero .identity{font-size:23px}html[lang=zh-CN] .river-hero .identity{font-size:17px}html[lang] .river-hero .intro{padding:35px 0 0;min-height:450px;max-width:none}html[lang] .river-hero .intro h1{font-size:clamp(36px,8vw,51px);line-height:1.1;letter-spacing:-.025em}html[lang=zh-CN] .river-hero .intro h1{font-size:clamp(32px,7vw,45px);letter-spacing:.04em;line-height:1.5}.river-hero .river-translation{font-size:26px;margin-top:20px}html[lang=en] .river-hero .river-translation{font-size:15px;margin-top:21px}html[lang] .river-hero .intro-copy{margin-top:26px;max-width:100%}html[lang] .river-hero .intro-context{font-size:12px;max-width:330px}html[lang] .river-hero .intro-body{font-size:12px;max-width:320px}.river-hero .river-actions{gap:25px;margin-top:17px}html[lang] .river-hero .intro-link{font-size:12px;gap:35px}.river-hero .audio-control{font-size:16px;gap:9px}.river-hero .audio-glyph{width:30px;height:30px}.river-hero .river-reading-light{background:linear-gradient(90deg,rgba(247,247,242,.70),rgba(247,247,242,.45) 45%,rgba(247,247,242,.1)),linear-gradient(0deg,rgba(247,247,242,.98),rgba(247,247,242,.8) 26%,transparent 58%)}.river-hero .river-projects{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 23px;padding-top:70px;padding-bottom:22px}.river-hero .river-project,.river-hero .river-project:nth-child(n){min-height:125px;padding-top:16px;border-top:1px solid rgba(86,110,117,.15)}.river-hero .river-bank{display:none}.river-hero .river-project h2{font-size:23px;line-height:1.15}.river-hero .river-project:nth-child(5){grid-column:1/-1;min-height:100px}.river-hero .river-category{font-size:11px;margin-top:7px}.river-hero .river-detail{opacity:1;transform:none;margin-top:8px;min-height:0;font-size:11px;line-height:1.6}.river-hero .river-meta{font-size:12px;padding:15px 0 20px}}
@media(max-width:390px){.river-hero{--river-page:22px}.river-hero .header{gap:16px}.river-hero .header-controls{gap:12px}.river-hero .header nav{gap:14px;font-size:11px}html[lang] .river-hero .identity{font-size:21px}html[lang=zh-CN] .river-hero .identity{font-size:16px}.river-hero .river-project h2{font-size:21px}.river-hero .river-translation{font-size:25px}}
@media(prefers-reduced-motion:reduce){.river-hero #water,.river-hero .river-project,.river-hero .river-detail,.river-hero .river-arrow,.river-hero .audio-glyph{transition:none}.river-hero .audio-control[data-audio-state=playing] i{animation:none}}
@media print{.river-hero{min-height:0;display:block;background:#fff}.river-hero .river-water-image,.river-hero #water,.river-hero .river-reading-light,.river-hero .motion-control,.river-hero .audio-control,.river-hero .river-projects{display:none!important}.river-hero .wrap{width:100%}html[lang] .river-hero .intro{min-height:0;padding:30px 0}.river-hero .river-meta{padding:12px 0}}