:root{--navy:#0E2A44;--teal:#176B86;--teal-soft:#DDEEF3;--sand:#F6F1E6;--buoy:#E0A422;--ink:#1B2530;--mute:#5B6773;--line:#D8DFE5;--bg:#FFFFFF;--bg2:#F3F6F8;--maxw:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Instrument Sans",system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans TC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px}
h1,h2,h3,h4{font-family:"Bricolage Grotesque","Instrument Sans",system-ui,sans-serif;line-height:1.1;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5vw,3.6rem)}h2{font-size:clamp(1.6rem,3vw,2.2rem)}h3{font-size:1.25rem}
p{margin:0 0 1em}a{color:var(--teal)}
/* justified body copy */
.hero .lead,
section.block > .wrap > div > p,
section.block > .wrap > p,
.content p,
.prose p, .prose li,
.track li, .inc li, .jtopics li,
.callout, .steps li > div,
.proc p, .cmt p{text-align:justify;text-justify:inter-word;hyphens:auto;-webkit-hyphens:auto}
.idx span, .pubs small, .logogrid figcaption, footer p, .tl span, .facts div, .notice div{text-align:left;hyphens:manual}
@media(max-width:760px){
.hero .lead,
section.block > .wrap > div > p,
section.block > .wrap > p,
.content p,
.prose p, .prose li,
.track li, .inc li, .jtopics li,
.callout, .steps li > div,
.proc p, .cmt p{text-align:left;hyphens:manual}
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;max-width:1260px}
.brand{white-space:nowrap;font-family:"Bricolage Grotesque",sans-serif;font-weight:700;font-size:1.25rem;color:var(--navy);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand img{height:38px;width:auto}
nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
nav a{white-space:nowrap;display:block;padding:8px 10px;border-radius:6px;color:var(--ink);text-decoration:none;font-size:.9rem}
nav a:hover{background:var(--bg2)}nav a[aria-current]{color:var(--teal);font-weight:600}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;cursor:pointer}
@media(max-width:1180px){nav{position:absolute;left:0;right:0;top:68px;background:#fff;border-bottom:1px solid var(--line);display:none;padding:10px 16px 16px}nav.open{display:block}nav ul{flex-direction:column;gap:0}.burger{display:block}}
/* banner */
.bannerwrap{background:#fff;border-bottom:1px solid var(--line)}
.bannerwrap img{display:block;width:100%;max-width:1500px;margin:0 auto;height:auto}
.mobiletitle{display:none}
@media(max-width:700px){.bannerwrap{display:none}.mobiletitle{display:block;margin:0 0 18px}.mobiletitle img{height:60px;width:auto;margin-bottom:16px;background:#fff;padding:8px;border-radius:8px}.mobiletitle h2{color:#fff;font-size:1.5rem;margin:0 0 6px}.mobiletitle p{color:#BFD9E4;margin:0}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* logo rows */
.logos{display:flex;flex-wrap:wrap;align-items:center;gap:28px 40px;margin-top:8px}
.logos img{max-height:56px;max-width:230px;width:auto;height:auto;object-fit:contain}
.logogrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px;margin:24px 0 8px}
.logogrid{align-items:stretch}
.logogrid figure{margin:0;align-content:center;border:1px solid var(--line);border-radius:8px;padding:22px;background:#fff;display:grid;gap:14px;place-items:center;text-align:center}
.logogrid img{max-height:64px;max-width:100%;width:auto;object-fit:contain}
.logogrid figcaption{font-size:.9rem;color:var(--mute)}
/* proceedings covers */
.proc img.cover{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:6px;margin-bottom:14px;background:#fff}
.idx{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.idx a{display:block;flex:1 1 44%;border:1px solid var(--line);border-radius:6px;overflow:hidden;text-decoration:none}
.idx img{display:block;width:100%;height:96px;object-fit:cover;object-position:top left}
.idx span{display:block;padding:6px 8px;font-size:.78rem;color:var(--mute);background:var(--bg2)}
/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(180deg,#000 30%,transparent 100%)}
.hero .wrap{position:relative;padding:72px 24px 64px;display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:end}
.hero .kicker{font-size:1.05rem;color:#BFD9E4;margin-bottom:14px}
.hero h1{color:#fff;margin-bottom:22px}
.hero h1 em{font-style:normal;color:#BFD9E4}
.hero .lead{font-size:1.15rem;color:#D8E6EC;max-width:560px}
.facts{display:grid;gap:12px;border-left:3px solid var(--buoy);padding-left:20px}
.facts div{font-size:1.02rem}.facts b{display:block;font-size:.8rem;color:#9FC1CF;font-weight:500;margin-bottom:2px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-block;padding:13px 22px;border-radius:8px;text-decoration:none;font-weight:600;font-size:1rem;border:1.5px solid transparent}
.btn-primary{background:var(--buoy);color:var(--navy)}.btn-primary:hover{background:#f0b63a}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-teal{background:var(--teal);color:#fff}.btn-teal:hover{background:#125a71}
.btn-outline{border-color:var(--teal);color:var(--teal)}.btn-outline:hover{background:var(--teal-soft)}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr;padding:48px 24px 44px}}
.notice{background:var(--sand);border-bottom:1px solid #E9E1CF}
.notice .wrap{padding:12px 24px;font-size:.95rem;display:flex;gap:10px;align-items:flex-start}
.notice svg{flex:none;margin-top:3px}
/* sections */
section.block{padding:64px 0}
section.alt{background:var(--bg2)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px}
@media(max-width:820px){.two{grid-template-columns:1fr}}
.orgs{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.orgs li{padding:12px 16px;background:#fff;border:1px solid var(--line);border-radius:8px}
/* timeline */
.tl{list-style:none;margin:0;padding:0;position:relative}
.tl::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl li{position:relative;padding:0 0 22px 36px}
.tl li::before{content:"";position:absolute;left:3px;top:7px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--teal)}
.tl li.key::before{background:var(--buoy);border-color:var(--buoy)}
.tl time{display:block;font-family:"Bricolage Grotesque",sans-serif;font-weight:600;color:var(--navy)}
.tl span{color:var(--mute)}
/* publication list */
.pubs{counter-reset:p;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 28px}
@media(max-width:820px){.pubs{grid-template-columns:1fr}}
.pubs>li{padding:10px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:12px}
.pubs>li::before{counter-increment:p;content:counter(p);font-family:"Bricolage Grotesque",sans-serif;color:var(--teal);font-weight:600;min-width:1.4em}
.pubs a{font-weight:600;text-decoration:none;color:var(--navy)}.pubs a:hover{text-decoration:underline}
.pubs>li:has(.jtopics){grid-column:1/-1;background:var(--bg2);border-bottom:0;border-radius:8px;padding:16px 18px;margin-bottom:8px}
.jtopics{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:4px 20px}
.jtopics li{padding:3px 0 3px 16px;position:relative;font-size:.92rem;color:var(--ink);border:0;display:block}
.jtopics li::before{counter-increment:none;content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;min-width:0;border-radius:50%;background:var(--teal)}
.pubs small{display:block;color:var(--mute);font-size:.86rem}
.tag{display:inline-block;background:var(--teal-soft);color:var(--teal);font-size:.78rem;padding:2px 8px;border-radius:4px;margin-left:6px;font-weight:600}
.tag.gold{background:#FBF0D3;color:#8A5E05}
/* page header */
.pagehead{background:var(--navy);color:#fff}
.pagehead .wrap{padding:52px 24px 44px}
.pagehead h1{color:#fff;margin:0 0 8px}.pagehead p{margin:0;color:#BFD9E4;font-size:1.1rem}
.content{padding:56px 0}
.content .prose{max-width:720px}
.prose h2{margin-top:2em}
/* topics */
.tracks{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:820px){.tracks{grid-template-columns:1fr}}
.track{border-top:4px solid var(--teal);background:var(--bg2);padding:22px 24px;border-radius:0 0 8px 8px}
.track h3{display:flex;gap:14px;align-items:center;color:var(--navy);font-size:1.3rem}
.track h3 b{flex:none;width:44px;height:44px;border-radius:8px;background:var(--teal);color:#fff;font-family:"Bricolage Grotesque",sans-serif;font-size:1.5rem;font-weight:700;display:grid;place-items:center;line-height:1}
.track ul{margin:0;padding-left:18px;columns:1}
.track li{margin-bottom:4px}
/* table */
table{border-collapse:collapse;width:100%;font-size:.98rem}
th,td{padding:14px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--navy);color:#fff;font-weight:600}thead th small{display:block;font-weight:400;color:#BFD9E4;font-size:.8rem}
thead th:not(:first-child),td:not(:first-child){text-align:right;white-space:nowrap}
td strong{color:var(--navy);font-size:1.05rem}
td small{display:block;color:var(--mute);font-weight:400}
.tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
@media(max-width:640px){
.tblwrap{border:0;overflow:visible}
table,tbody,tr,td{display:block;width:100%}
thead{display:none}
tbody tr{border:1px solid var(--line);border-radius:8px;margin-bottom:14px;padding:14px 16px;background:#fff}
td{border:0;padding:6px 0;display:flex;justify-content:space-between;align-items:baseline;gap:16px;text-align:left!important;white-space:normal!important}
td:first-child{display:block;font-weight:600;color:var(--navy);border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:6px}
td:not(:first-child)::before{content:attr(data-label);color:var(--mute);font-size:.86rem}
}
.inc{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin-top:36px}
.inc div{background:var(--bg2);padding:20px 22px;border-radius:8px}
.inc h3{font-size:1.05rem;color:var(--navy)}.inc ul{margin:0;padding-left:18px}.inc li{margin-bottom:4px}
/* committees */
.cmt h2{border-bottom:2px solid var(--navy);padding-bottom:8px;margin-top:2.2em}
.cmt ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:6px 28px}
.cmt li{padding:8px 0;border-bottom:1px dashed var(--line)}
.cmt li b{display:block;font-weight:600;color:var(--navy)}.cmt li span{color:var(--mute);font-size:.9rem}
/* proceedings */
.proc{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.proc li{border:1px solid var(--line);border-radius:8px;padding:20px 22px;background:#fff;display:flex;flex-direction:column}
.proc li>a:last-of-type{margin-bottom:0}
.proc .idx{margin-top:auto;padding-top:14px}
.proc h3{margin-bottom:6px}
.proc p{margin:0 0 10px;color:var(--mute);font-size:.92rem}
/* steps */
.steps{list-style:none;padding:0;margin:24px 0;counter-reset:s;display:grid;gap:14px}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}
.steps li::before{counter-increment:s;content:counter(s);width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:"Bricolage Grotesque",sans-serif;font-weight:600}
.callout{background:var(--sand);border-left:4px solid var(--buoy);padding:16px 20px;border-radius:0 8px 8px 0;margin:24px 0}
/* footer */
footer{background:var(--navy);color:#BFD9E4;padding:48px 0 28px;margin-top:40px;font-size:.93rem}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:36px}
footer h4{color:#fff;margin-bottom:10px}
footer a{color:#fff;text-decoration:none}footer a:hover{text-decoration:underline}
footer ul{list-style:none;padding:0;margin:0}footer li{margin-bottom:6px}
.copy{max-width:var(--maxw);margin:36px auto 0;padding:18px 24px 0;border-top:1px solid rgba(255,255,255,.15);color:#8FB3C2;font-size:.85rem}
@media(max-width:820px){footer .wrap{grid-template-columns:1fr}}
/* ---- motion ---- */
.top{transition:box-shadow .25s ease}
.top.scrolled{box-shadow:0 2px 14px rgba(14,42,68,.12)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.anim{animation:rise .6s cubic-bezier(.2,.7,.3,1) both;animation-delay:var(--d,0ms)}
.countdown{border-left:0;margin-bottom:6px}
.countdown b{color:#9FC1CF}
.cd-num{font-family:"Bricolage Grotesque",sans-serif;font-size:2.6rem;font-weight:700;color:var(--buoy);line-height:1;display:block;font-variant-numeric:tabular-nums}
.cd-num small{font-size:1rem;font-weight:500;color:#D8E6EC}
/* timeline draw-in */
.tl.watch::before{transform:scaleY(0);transform-origin:top;transition:transform 1.1s cubic-bezier(.4,0,.2,1)}
.tl.watch.in::before{transform:scaleY(1)}
.tl.watch li{opacity:0;transform:translateX(-10px);transition:opacity .5s ease,transform .5s ease}
.tl.watch.in li{opacity:1;transform:none;transition-delay:calc(var(--i) * 90ms + 150ms)}
/* card + link hovers */
.proc li,.orgs li,.logogrid figure{transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.proc li:hover,.logogrid figure:hover{transform:translateY(-3px);border-color:var(--teal);box-shadow:0 8px 22px rgba(14,42,68,.10)}
.proc a>img.cover{transition:transform .35s cubic-bezier(.2,.7,.3,1)}
.proc li:hover a>img.cover{transform:scale(1.02)}
.btn{transition:background-color .2s ease,transform .15s ease,border-color .2s ease}
.btn:active{transform:translateY(1px)}
.pubs>li{transition:background-color .2s ease}
.pubs>li:hover{background:var(--bg2)}
.track{transition:border-top-color .25s ease,transform .25s ease}
.track:hover{transform:translateY(-2px)}
nav a{transition:background-color .18s ease,color .18s ease}
@media(max-width:1180px){nav{transform-origin:top;animation:none}nav.open{animation:rise .28s ease both}}
@media(prefers-reduced-motion:reduce){
.anim,nav.open{animation:none!important}
.tl.watch::before{transform:none!important;transition:none}
.tl.watch li{opacity:1!important;transform:none!important;transition:none}
.proc li:hover,.logogrid figure:hover,.track:hover{transform:none}
.proc li:hover a>img.cover{transform:none}
}
:focus-visible{outline:3px solid var(--buoy);outline-offset:2px}
@media(prefers-color-scheme:dark){
:root{--ink:#E4EBF1;--mute:#9DAAB6;--line:#2C3A46;--bg:#0F1720;--bg2:#182430;--sand:#241F14;--teal:#5FB6D2;--teal-soft:#123240;--navy:#0B1A28}
body{background:var(--bg);color:var(--ink)}
h1,h2,h3,h4{color:var(--ink)}
.top{background:rgba(15,23,32,.94)}
.brand{color:var(--ink)}
.brand img{background:#fff;padding:3px;border-radius:5px}
nav a{color:var(--ink)}
.burger{color:var(--ink);background:transparent}
@media(max-width:1180px){nav{background:var(--bg)}}
.bannerwrap{background:#DDE3E8}
.notice{background:var(--sand);border-bottom-color:#3A3222}
.notice div{color:#F0DCA8}
.orgs li,.logogrid figure,.proc li{background:var(--bg2);border-color:var(--line)}
.track{background:var(--bg2)}
.inc div{background:var(--bg2)}
.callout{background:var(--sand)}
.pagehead,.hero,footer{background:#0B1A28}
thead th{background:#0B1A28}
tbody tr{background:var(--bg2)}
td strong,.cmt li b,.pubs a,.track h3,.inc h3,.tl time,.mobiletitle h2{color:var(--ink)}
.cmt h2{border-bottom-color:var(--teal)}
.btn-primary{color:#1A1200}
.btn-teal{color:#08131A}
.track h3 b{color:#08131A}
.jtopics li{color:var(--ink)}
.notice svg{stroke:#E0A422}
.logos img,.logogrid img,.proc img.cover,.idx img{background:#fff}
.logos img,.logogrid img{padding:6px;border-radius:4px}
.idx span{background:#0F1720}
@media(max-width:640px){tbody tr{background:var(--bg2)}td:first-child{color:var(--ink)}}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}