:root{
  --bg:#ffffff;
  --bg-soft:#fbfaff;
  --ink:#17161d;
  --muted:#63606f;
  --line:#e9e6f2;
  --purple:#7c5cff;
  --purple-deep:#6242e8;
  --purple-soft:#efeaff;
  --teal:#14b8a6;
  --teal-soft:#e7f8f5;
  --peach:#f29b74;
  --peach-soft:#fff0e8;
  --sky:#5b9cf8;
  --sky-soft:#eaf2ff;
  --card:#ffffff;
  --grad:linear-gradient(100deg,#7c5cff 0%,#5b8def 45%,#2dd4bf 100%);
  --serif:"Iowan Old Style","Baskerville","Songti SC","Noto Serif CJK SC","Source Han Serif SC",serif;
  --sans:"Inter","Helvetica Neue","Avenir Next","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular","Cascadia Mono","Liberation Mono",monospace;
  --wrap:1200px;
  --gutter:clamp(22px,4.5vw,56px);
  --shadow:0 16px 50px rgba(84,63,160,.1);
  --shadow-sm:0 6px 22px rgba(84,63,160,.06);
  --radius:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,figure,blockquote,ul{margin:0}
ul{padding:0;list-style:none}
::selection{background:var(--purple);color:#fff}
:focus-visible{outline:2px solid var(--purple);outline-offset:4px}
.wrap{width:min(100%,calc(var(--wrap) + var(--gutter)*2));margin-inline:auto;padding-inline:var(--gutter)}
.skip{position:fixed;z-index:120;left:14px;top:12px;background:var(--ink);color:#fff;padding:10px 16px;transform:translateY(-160%);transition:transform .18s ease}
.skip:focus{transform:translateY(0)}

/* header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.84);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(233,230,242,.85)}
.header-inner{height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:.9rem;letter-spacing:.02em;box-shadow:0 8px 20px rgba(124,92,255,.24)}
.brand-text strong{display:block;font-family:var(--serif);font-size:1.12rem;font-weight:600;line-height:1.15;letter-spacing:.01em}
.brand-text small{display:block;font-family:var(--mono);font-size:.49rem;letter-spacing:.13em;color:var(--muted);margin-top:4px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:clamp(12px,2vw,26px);font-size:.79rem}
.nav a{position:relative;color:var(--muted);padding:7px 0;transition:color .2s ease}
.nav a:hover,.nav a[aria-current]{color:var(--purple)}
.nav a[aria-current]::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--grad)}
.header-cta{display:inline-flex;align-items:center;gap:8px;background:var(--grad);color:#fff;border-radius:999px;padding:10px 17px;font-size:.74rem;font-weight:600;white-space:nowrap;box-shadow:0 8px 22px rgba(124,92,255,.24);transition:transform .2s ease,box-shadow .2s ease}
.header-cta:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(124,92,255,.3)}
.header-cta svg{width:13px;height:13px}
.mobile-nav{display:none;position:relative}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(44px,6vw,78px) 0 0;background:radial-gradient(ellipse at 10% 6%,#ece6ff 0%,transparent 42%),radial-gradient(ellipse at 90% 10%,#ddf8f1 0%,transparent 40%),radial-gradient(ellipse at 55% 92%,#f3edff 0%,transparent 50%),#fff}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(124,92,255,.08) 1px,transparent 0);background-size:26px 26px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 72%);mask-image:linear-gradient(180deg,#000,transparent 72%);pointer-events:none;opacity:.45}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(380px,.98fr);gap:clamp(36px,6vw,78px);align-items:center;padding-bottom:clamp(40px,5vw,62px)}
.eyebrow-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.72);border:1px solid rgba(124,92,255,.16);border-radius:999px;padding:7px 12px;font-family:var(--mono);font-size:.54rem;letter-spacing:.12em;color:var(--purple);text-transform:uppercase;box-shadow:var(--shadow-sm)}
.eyebrow-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad);flex:0 0 auto}
.hero-en{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 9px;font-family:var(--mono);font-size:.56rem;letter-spacing:.16em;color:var(--purple);text-transform:uppercase}
.hero-en::before{content:"";width:26px;height:1px;background:var(--grad);align-self:center;flex:0 0 auto}
.hero-en__main{white-space:nowrap}
.hero-en__for{flex:0 0 100%;padding-left:35px;font-family:var(--sans);font-size:.92em;letter-spacing:.04em;color:var(--muted);text-transform:none;white-space:nowrap}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.75rem,5vw,4.75rem);line-height:1.12;letter-spacing:-.035em;margin-top:22px}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.hero-lede{max-width:36em;margin-top:22px;color:var(--muted);font-size:clamp(.96rem,1.2vw,1.06rem);line-height:1.95;text-wrap:pretty}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:12px 20px;font-size:.81rem;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn--grad{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(124,92,255,.26)}
.btn--grad:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(124,92,255,.32)}
.btn--ghost{background:rgba(255,255,255,.66);border:1px solid var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:rgba(124,92,255,.4);color:var(--purple);transform:translateY(-1px)}
.btn--white{background:#fff;color:var(--purple);box-shadow:0 10px 24px rgba(30,20,80,.14)}
.btn--white:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(30,20,80,.2)}
.hero-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:26px;font-size:.72rem;color:var(--muted)}
.hero-meta strong{color:var(--ink);font-weight:600}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--purple)}

/* hero visual */
.hero-visual-wrap{position:relative}
.hero-visual{position:relative;aspect-ratio:1/1;border-radius:32px;padding:11px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.hero-visual__inner{position:relative;height:100%;border-radius:24px;overflow:hidden;background:linear-gradient(145deg,#efe9ff 0%,#e8f8f4 55%,#f6f0ff 100%)}
.hero-visual__inner::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(124,92,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(124,92,255,.06) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(circle at 50% 46%,#000,transparent 78%);mask-image:radial-gradient(circle at 50% 46%,#000,transparent 78%)}
.vision-board{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;padding:18px 18px 20px}
.vision-top{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:.48rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.vision-branches{display:grid;grid-template-columns:1fr 1fr;gap:12px;flex:1;min-height:0;margin-top:12px}
.vision-branch{position:relative;display:flex;flex-direction:column;min-height:0;overflow:hidden;padding:14px;border-radius:18px;background:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.92);box-shadow:var(--shadow-sm);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.vision-branch::after{position:absolute;right:-10px;bottom:-34px;z-index:0;font-family:var(--serif);font-size:7.5rem;line-height:1;color:rgba(124,92,255,.055);pointer-events:none}
.vision-branch--know::after{content:"知"}
.vision-branch--act::after{content:"行";color:rgba(20,184,166,.07)}
.vision-branch > *{position:relative;z-index:1}
.vision-branch__head{display:flex;align-items:baseline;gap:8px;padding-bottom:10px;border-bottom:1px solid rgba(124,92,255,.1)}
.vision-branch__cn{font-family:var(--serif);font-size:1.6rem;font-weight:500;line-height:1;color:var(--purple)}
.vision-branch--act .vision-branch__cn{color:var(--teal)}
.vision-branch__en{font-family:var(--mono);font-size:.46rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.vision-nodes{display:flex;flex-direction:column;gap:6px;margin-top:12px}
.vision-nodes li{display:flex;align-items:flex-start;gap:7px;padding:7px 9px;border-radius:11px;background:rgba(255,255,255,.66);border:1px solid rgba(124,92,255,.09);font-size:.64rem;line-height:1.35;color:var(--ink)}
.vision-nodes li::before{content:"";width:5px;height:5px;margin-top:.38em;border-radius:50%;background:var(--grad);flex:0 0 auto}
.vision-branch--act .vision-nodes li::before{background:var(--teal)}
.vision-branch__note{margin-top:auto;padding-top:12px;font-family:var(--mono);font-size:.44rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.vision-merge{position:relative;z-index:1;flex:0 0 30px;margin:2px 0 4px}
.vision-merge svg{display:block;width:100%;height:100%}
.vision-core{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:52px;padding:9px 14px;border-radius:16px;background:var(--grad);color:#fff;text-align:center;box-shadow:0 12px 28px rgba(124,92,255,.22)}
.vision-core__label{font-family:var(--mono);font-size:.58rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.vision-core__cn{font-size:.56rem;letter-spacing:.08em;opacity:.82}
.mini-icon{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto}
.mini-icon svg{width:17px;height:17px}

/* stats */
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;padding-bottom:clamp(36px,5vw,56px)}
.stat-card{display:flex;align-items:center;gap:11px;background:rgba(255,255,255,.76);border:1px solid rgba(255,255,255,.95);border-radius:18px;padding:13px 15px;box-shadow:var(--shadow-sm);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.stat-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto}
.stat-icon svg{width:18px;height:18px}
.stat-card strong{display:block;font-family:var(--serif);font-size:1.38rem;font-weight:500;line-height:1}
.stat-card span{display:block;font-family:var(--mono);font-size:.46rem;letter-spacing:.08em;color:var(--muted);margin-top:4px;text-transform:uppercase}

/* tones */
.tone-purple{background:var(--purple-soft);color:var(--purple)}
.tone-teal{background:var(--teal-soft);color:var(--teal)}
.tone-peach{background:var(--peach-soft);color:var(--peach)}
.tone-sky{background:var(--sky-soft);color:var(--sky)}

/* sections */
.section{padding:clamp(64px,8vw,104px) 0}
.section--soft{background:linear-gradient(180deg,#fbfaff 0%,#ffffff 100%)}
.section-head{max-width:760px;margin:0 auto clamp(34px,4vw,52px);text-align:center}
.section-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;margin:0 auto 15px;box-shadow:var(--shadow-sm)}
.section-icon svg{width:22px;height:22px}
.kicker{font-family:var(--mono);font-size:.54rem;letter-spacing:.14em;color:var(--purple);text-transform:uppercase}
.section-head h2{font-family:var(--serif);font-weight:500;font-size:clamp(2rem,3.2vw,2.9rem);line-height:1.2;letter-spacing:-.025em;margin-top:8px}
.section-head p{max-width:44em;margin:14px auto 0;color:var(--muted);font-size:.92rem;line-height:1.9}
.section-tail{display:flex;justify-content:center;margin-top:34px}

/* research cards */
.research-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.research-card{position:relative;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:clamp(22px,2.6vw,30px);box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.research-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(124,92,255,.2)}
.research-card::before{content:"";position:absolute;right:-50px;top:-70px;width:200px;height:200px;border-radius:50%;pointer-events:none}
.research-card:nth-child(1)::before{background:radial-gradient(circle,#efeaff 0%,transparent 70%)}
.research-card:nth-child(2)::before{background:radial-gradient(circle,#e7f8f5 0%,transparent 70%)}
.research-card:nth-child(3)::before{background:radial-gradient(circle,#fff0e8 0%,transparent 70%)}
.research-card:nth-child(4)::before{background:radial-gradient(circle,#eaf2ff 0%,transparent 70%)}
.card-num{position:absolute;right:22px;top:21px;font-family:var(--mono);font-size:.54rem;color:var(--muted);letter-spacing:.1em}
.research-icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;margin-bottom:17px}
.research-icon svg{width:22px;height:22px}
.research-card .en{font-family:var(--mono);font-size:.5rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.research-card h3{font-family:var(--serif);font-weight:500;font-size:1.42rem;line-height:1.35;margin-top:6px}
.research-card p{max-width:32em;margin-top:10px;color:var(--muted);font-size:.86rem;line-height:1.85}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:17px}
.tags span{border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);padding:4px 9px;font-family:var(--mono);font-size:.46rem;letter-spacing:.04em;color:var(--muted)}
.research-link{display:inline-flex;align-items:center;gap:7px;margin-top:17px;font-size:.75rem;font-weight:600;color:var(--purple)}
.research-link svg{width:14px;height:14px;transition:transform .2s ease}
.research-card:hover .research-link svg{transform:translateX(3px)}

/* selected works */
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease}
.work-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.work-thumb{position:relative;height:148px;overflow:hidden;background:linear-gradient(145deg,#efeaff,#e2f8f4)}
.work-thumb::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.22) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.22) 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:radial-gradient(circle at 55% 45%,#000,transparent 78%);mask-image:radial-gradient(circle at 55% 45%,#000,transparent 78%)}
.work-thumb::after{content:"";position:absolute;width:130px;height:130px;border-radius:50%;right:-20px;bottom:-45px;border:1px solid rgba(124,92,255,.28);box-shadow:0 0 0 22px rgba(124,92,255,.06),0 0 0 44px rgba(45,212,191,.05)}
.work-card:nth-child(2) .work-thumb{background:linear-gradient(145deg,#e7f8f5,#eaf2ff)}
.work-card:nth-child(3) .work-thumb{background:linear-gradient(145deg,#fff0e8,#efeaff)}
.work-thumb .pill{position:absolute;z-index:2;border-radius:999px;background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.95);padding:5px 9px;font-family:var(--mono);font-size:.46rem;letter-spacing:.06em;color:var(--purple);box-shadow:var(--shadow-sm)}
.work-year{left:13px;top:13px}
.work-venue{right:13px;top:13px;color:var(--muted)}
.work-mark{position:absolute;z-index:1;left:50%;top:50%;width:56px;height:56px;transform:translate(-50%,-50%);display:grid;place-items:center;border-radius:18px;background:rgba(255,255,255,.56);border:1px solid rgba(255,255,255,.85);box-shadow:0 10px 24px rgba(84,63,160,.08);color:rgba(124,92,255,.68);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.work-mark svg{width:25px;height:25px}
.work-card:nth-child(2) .work-mark{color:rgba(20,184,166,.72)}
.work-card:nth-child(3) .work-mark{color:rgba(242,155,116,.8)}
.work-body{display:flex;flex-direction:column;flex:1;padding:19px 20px 18px}
.work-body h3{font-family:var(--serif);font-size:1.06rem;font-weight:500;line-height:1.5}
.work-authors{margin-top:6px;font-size:.66rem;line-height:1.65;color:var(--muted)}
.work-authors strong{color:var(--ink);font-weight:600}
.work-flag{left:13px;bottom:13px;color:var(--teal)}
.work-links{display:flex;gap:14px;margin-top:auto;padding-top:15px;font-family:var(--mono);font-size:.54rem;letter-spacing:.06em;color:var(--purple)}
.work-links a:hover{text-decoration:underline}

/* news + moments */
.split-panels{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:clamp(21px,2.5vw,29px);box-shadow:var(--shadow-sm)}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:6px}
.panel-head h3{font-family:var(--serif);font-size:1.3rem;font-weight:500}
.panel-head a{font-size:.68rem;font-weight:600;color:var(--purple);white-space:nowrap}
.panel-note{font-family:var(--mono);font-size:.54rem;letter-spacing:.06em;color:var(--muted);white-space:nowrap}
.panel-head a:hover{text-decoration:underline}
.news-item{display:grid;grid-template-columns:68px minmax(0,1fr);gap:13px;padding:13px 0;border-top:1px solid var(--line)}
.news-date{font-family:var(--mono);font-size:.5rem;color:var(--muted);padding-top:3px}
.news-item h4{font-size:.82rem;font-weight:600;line-height:1.5}
.news-item p{margin-top:2px;font-size:.69rem;line-height:1.6;color:var(--muted)}
.news-cat{display:inline-block;border-radius:999px;background:var(--purple-soft);color:var(--purple);padding:2px 7px;font-family:var(--mono);font-size:.44rem;letter-spacing:.06em;margin-right:6px;vertical-align:1px}
.moments-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}
.moment{position:relative;aspect-ratio:4/3;border-radius:16px;overflow:hidden;display:flex;align-items:flex-end;padding:11px;background:linear-gradient(145deg,#7c5cff,#b7a6ff)}
.moment:nth-child(2){background:linear-gradient(145deg,#14b8a6,#8ee8dd)}
.moment:nth-child(3){background:linear-gradient(145deg,#f29b74,#ffd4c2)}
.moment:nth-child(4){background:linear-gradient(145deg,#5b9cf8,#b9d5ff)}
.moment::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.3) 1px,transparent 0);background-size:16px 16px;opacity:.6}
.moment::after{content:"";position:absolute;width:80px;height:80px;border-radius:50%;right:-20px;top:-20px;border:1px solid rgba(255,255,255,.4)}
.moment span{position:relative;z-index:1;font-family:var(--mono);font-size:.48rem;letter-spacing:.08em;color:#fff;text-transform:uppercase;text-shadow:0 1px 8px rgba(0,0,0,.18)}

/* join */
.join-panel{position:relative;overflow:hidden;border-radius:32px;background:var(--grad);color:#fff;padding:clamp(34px,5vw,62px);box-shadow:0 24px 60px rgba(124,92,255,.22)}
.join-panel::before{content:"";position:absolute;right:-90px;top:-120px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.28);box-shadow:0 0 0 40px rgba(255,255,255,.05),0 0 0 80px rgba(255,255,255,.04)}
.join-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,60px);align-items:end}
.join-kicker{font-family:var(--mono);font-size:.52rem;letter-spacing:.14em;color:rgba(255,255,255,.72);text-transform:uppercase}
.join-panel h2{font-family:var(--serif);font-weight:500;font-size:clamp(2rem,3.5vw,3rem);line-height:1.2;letter-spacing:-.02em;margin-top:9px}
.join-panel p{max-width:36em;color:rgba(255,255,255,.78);font-size:.9rem;line-height:1.9}
.join-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px}
.join-note{font-family:var(--mono);font-size:.5rem;letter-spacing:.08em;color:rgba(255,255,255,.72);text-transform:uppercase}

/* footer */
.site-footer{background:#fbfaff;border-top:1px solid var(--line);padding:clamp(40px,5vw,58px) 0 22px}
.footer-grid{display:grid;grid-template-columns:1.2fr .7fr .8fr;gap:clamp(26px,4vw,56px);padding-bottom:34px}
.footer-brand{display:flex;align-items:flex-start;gap:12px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:12px;font-size:.8rem}
.footer-brand strong{display:block;font-family:var(--serif);font-size:1.02rem;font-weight:600}
.footer-brand p{max-width:30em;margin-top:7px;font-size:.74rem;line-height:1.8;color:var(--muted)}
.footer-col h3{font-family:var(--mono);font-size:.49rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-bottom:11px}
.footer-col a,.footer-col p{display:block;font-size:.74rem;line-height:1.9;color:var(--muted)}
.footer-col p a{display:inline}
.footer-col a:hover{color:var(--purple)}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:17px;font-family:var(--mono);font-size:.48rem;letter-spacing:.07em;color:var(--muted);text-transform:uppercase}

/* team page */
.page-hero{position:relative;overflow:hidden;text-align:center;padding:clamp(44px,6vw,74px) 0 clamp(92px,10vw,128px);background:radial-gradient(ellipse at 12% 6%,#ece6ff 0%,transparent 42%),radial-gradient(ellipse at 88% 8%,#ddf8f1 0%,transparent 40%),#fff}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(124,92,255,.08) 1px,transparent 0);background-size:26px 26px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 78%);mask-image:linear-gradient(180deg,#000,transparent 78%);opacity:.45;pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.6rem,4.6vw,4rem);line-height:1.1;letter-spacing:-.03em;margin-top:12px}
.page-hero p{max-width:42em;margin:15px auto 0;color:var(--muted);font-size:.93rem;line-height:1.9}
.pi-card{position:relative;z-index:2;display:grid;grid-template-columns:300px minmax(0,1fr);gap:clamp(26px,4vw,46px);margin-top:calc(-1 * clamp(60px,8vw,100px));padding:clamp(22px,3vw,34px);background:#fff;border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow)}
.pi-photo{position:relative;aspect-ratio:4/5;border-radius:24px;overflow:hidden;display:grid;place-items:center;background:linear-gradient(145deg,#7c5cff,#2dd4bf)}
.pi-photo::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);background-size:38px 38px}
.pi-photo::after{content:"";position:absolute;width:58%;aspect-ratio:1;border-radius:50%;border:1px solid rgba(255,255,255,.35);box-shadow:0 0 0 32px rgba(255,255,255,.04),0 0 0 64px rgba(255,255,255,.03)}
.pi-photo .pi-initials{position:relative;z-index:2;font-family:var(--serif);font-size:3.4rem;letter-spacing:.03em;color:rgba(255,255,255,.94)}
.pi-photo small{position:absolute;z-index:2;left:14px;bottom:12px;font-family:var(--mono);font-size:.46rem;letter-spacing:.1em;color:rgba(255,255,255,.7);text-transform:uppercase;white-space:nowrap}
.pi-badge{position:absolute;z-index:3;right:13px;top:13px;border-radius:999px;background:rgba(255,255,255,.88);padding:4px 9px;font-family:var(--mono);font-size:.46rem;letter-spacing:.08em;color:var(--purple)}
.pi-photo--portrait::before,.pi-photo--portrait::after{display:none}
.pi-photo--portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pi-info .kicker{display:block}
.pi-info h2{font-family:var(--serif);font-weight:500;font-size:clamp(2rem,3vw,2.6rem);line-height:1.15;margin-top:5px}
.pi-role{margin-top:3px;font-size:.88rem;font-weight:600;color:var(--purple)}
.pi-affil{margin-top:4px;font-size:.78rem;color:var(--muted)}
.pi-bio{max-width:44em;margin-top:15px;font-size:.85rem;line-height:1.9;color:var(--muted)}
.pi-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:15px}
.pi-tags span{border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);padding:4px 9px;font-family:var(--mono);font-size:.46rem;letter-spacing:.04em;color:var(--muted)}
.pi-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:15px;font-size:.71rem;color:var(--purple)}
.pi-links a{border-bottom:1px solid rgba(124,92,255,.28);padding-bottom:1px}
.pi-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.pi-actions .btn{padding:10px 16px;font-size:.75rem}
.pi-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px;padding-top:17px;border-top:1px solid var(--line)}
.pi-stats strong{display:block;font-family:var(--serif);font-size:1.5rem;font-weight:500;line-height:1}
.pi-stats span{display:block;margin-top:4px;font-family:var(--mono);font-size:.46rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.cv-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;margin-top:clamp(36px,5vw,58px)}
.cv-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(22px,2.6vw,30px);box-shadow:var(--shadow-sm)}
.cv-card h2{font-family:var(--serif);font-size:1.3rem;font-weight:500;margin-bottom:6px}
.timeline-item{display:grid;grid-template-columns:78px minmax(0,1fr);gap:13px;padding:12px 0;border-top:1px solid var(--line)}
.timeline-item time{font-family:var(--mono);font-size:.5rem;letter-spacing:.04em;color:var(--purple);padding-top:3px}
.timeline-item h3{font-size:.8rem;font-weight:600;line-height:1.5}
.timeline-item p{margin-top:2px;font-size:.68rem;line-height:1.65;color:var(--muted)}
.honor-item{display:flex;gap:9px;padding:9px 0;border-top:1px solid var(--line);font-size:.74rem;line-height:1.65;color:var(--muted)}
.honor-item::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad);margin-top:7px;flex:0 0 auto}
.cv-subhead{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.54rem;letter-spacing:.14em;color:var(--purple)}
.cv-subhead + .honor-item{border-top:0;padding-top:2px}
.members-section{padding-top:clamp(56px,7vw,88px)}
.member-filters{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.member-filters span{border-radius:999px;border:1px solid var(--line);background:#fff;padding:6px 12px;font-family:var(--mono);font-size:.48rem;letter-spacing:.06em;color:var(--muted)}
.member-filters span.active{background:var(--purple);border-color:var(--purple);color:#fff;box-shadow:0 6px 16px rgba(124,92,255,.2)}
.member-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
.nowrap{white-space:nowrap}
.keep{white-space:nowrap}
.member-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:19px 16px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease}
.member-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.member-avatar{width:76px;height:76px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;border:3px solid #fff;box-shadow:0 0 0 1px var(--line);background:linear-gradient(145deg,#efeaff,#e2f8f4);color:var(--purple);font-family:var(--serif);font-size:1.38rem}
.member-card:nth-child(2n) .member-avatar{background:linear-gradient(145deg,#e7f8f5,#eaf2ff);color:var(--teal)}
.member-card:nth-child(3n) .member-avatar{background:linear-gradient(145deg,#fff0e8,#efeaff);color:var(--peach)}
.member-card strong{display:block;font-family:var(--serif);font-size:1rem;font-weight:500}
.member-role{display:block;margin-top:2px;font-size:.62rem;color:var(--purple)}
.member-research{display:block;margin-top:6px;font-size:.66rem;line-height:1.6;color:var(--muted)}
.member-card--join{display:flex;flex-direction:column;align-items:center;justify-content:center;border-style:dashed;color:var(--purple)}
.member-card--join .member-avatar{background:var(--purple-soft);color:var(--purple)}
.alumni-card{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(22px,2.6vw,30px);box-shadow:var(--shadow-sm)}
.alumni-card h2{font-family:var(--serif);font-size:1.3rem;font-weight:500;margin-bottom:6px}
.alumni-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-top:1px solid var(--line);font-size:.72rem;color:var(--muted)}
.alumni-row strong{font-weight:600;color:var(--ink)}
.note{margin-top:14px;font-size:.64rem;line-height:1.7;letter-spacing:.02em;color:var(--muted)}

/* mockup switcher */
.switcher{position:fixed;z-index:100;right:16px;bottom:16px;display:flex;gap:2px;padding:4px;border-radius:12px;background:rgba(23,22,29,.92);box-shadow:0 14px 34px rgba(0,0,0,.2);font-family:var(--mono);font-size:.56rem;letter-spacing:.06em;backdrop-filter:blur(10px)}
.switcher a{color:rgba(255,255,255,.56);padding:7px 9px;border-radius:8px;transition:background .2s ease,color .2s ease}
.switcher a:hover{color:#fff}
.switcher a[aria-current]{background:#fff;color:var(--ink)}

@media (max-width:1040px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-visual-wrap{max-width:520px;margin:0 auto;width:100%}
  .hero-stats{grid-template-columns:1fr 1fr}
  .research-grid{grid-template-columns:1fr}
  .work-grid{grid-template-columns:1fr 1fr}
  .work-card:last-child{grid-column:1/-1;display:grid;grid-template-columns:220px minmax(0,1fr)}
  .work-card:last-child .work-thumb{height:100%;min-height:148px}
  .split-panels{grid-template-columns:1fr}
  .join-grid{grid-template-columns:1fr}
  .pi-card{grid-template-columns:1fr}
  .pi-photo{width:100%;max-width:320px;margin-inline:auto}
  .cv-grid{grid-template-columns:1fr}
  .member-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .header-cta{display:none}
}
@media (max-width:760px){
  .header-inner{height:72px}
  .nav,.header-cta{display:none}
  .brand-text small{display:none}
  .brand-text strong{font-size:1rem}
  .brand-mark{width:36px;height:36px;font-size:.82rem}
  .mobile-nav{display:block}
  .mobile-nav summary{list-style:none;cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 12px;font-family:var(--mono);font-size:.54rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
  .mobile-nav summary::-webkit-details-marker{display:none}
  .mobile-nav nav{position:absolute;right:0;top:calc(100% + 10px);min-width:190px;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;padding:9px;box-shadow:var(--shadow)}
  .mobile-nav nav a{padding:8px 10px;border-radius:8px;font-size:.8rem;color:var(--muted)}
  .mobile-nav nav a:hover{background:var(--bg-soft);color:var(--purple)}
  .hero h1{font-size:clamp(2.35rem,10.5vw,3.3rem)}
  .hero-visual{aspect-ratio:1/1}
  .vision-board{padding:16px 16px 18px}
  .vision-branches{gap:10px;margin-top:10px}
  .vision-branch{padding:12px;border-radius:16px}
  .vision-branch::after{font-size:6.2rem;right:-8px;bottom:-28px}
  .vision-branch__cn{font-size:1.45rem}
  .vision-nodes{margin-top:10px}
  .vision-nodes li{font-size:.6rem;padding:6px 8px}
  .vision-branch__note{font-size:.4rem;padding-top:10px}
  .vision-merge{flex-basis:26px}
  .vision-core{min-height:46px}
  .vision-core__label{font-size:.54rem}
  .vision-core__cn{font-size:.52rem}
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-card{padding:11px 12px}
  .stat-card strong{font-size:1.2rem}
  .work-grid{grid-template-columns:1fr}
  .work-card:last-child{display:flex;grid-column:auto}
  .work-card:last-child .work-thumb{height:148px;min-height:0}
  .news-item{grid-template-columns:60px minmax(0,1fr);gap:10px}
  .panel{padding:20px}
  .join-panel h2{font-size:clamp(1.5rem,6vw,2rem)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .member-grid{grid-template-columns:1fr 1fr}
  .pi-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .pi-stats strong{font-size:1.15rem}
  .pi-actions{flex-direction:column;align-items:flex-start}
  .alumni-row{flex-direction:column;gap:2px}
  .hero-meta .dot{display:none}
  .moment{aspect-ratio:1/1}
  .switcher{right:10px;bottom:10px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .vision-board{padding:13px 13px 15px}
  .vision-top{font-size:.46rem}
  .vision-branches{gap:8px;margin-top:8px}
  .vision-branch{padding:9px;border-radius:13px}
  .vision-branch::after{font-size:5rem;right:-6px;bottom:-22px}
  .vision-branch__head{gap:5px;padding-bottom:6px}
  .vision-branch__cn{font-size:1.25rem}
  .vision-branch__en{font-size:.4rem;letter-spacing:.07em}
  .vision-nodes{gap:4px;margin-top:7px}
  .vision-nodes li{gap:5px;padding:4px 6px;border-radius:8px;font-size:.56rem}
  .vision-branch__note{font-size:.4rem;padding-top:7px;letter-spacing:.07em}
  .vision-merge{flex-basis:22px;margin:1px 0 2px}
  .vision-core{min-height:44px;border-radius:12px;padding:7px 9px}
  .vision-core__label{font-size:.54rem;letter-spacing:.07em}
  .vision-core__cn{font-size:.48rem}
}
@media (max-width:360px){
  .nowrap{white-space:normal}
  .brand-text strong{font-size:.92rem}
  .brand-mark{width:34px;height:34px}
  .vision-branch__note{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}