:root{--bg:#f4f6f8;--ink:#10131a;--muted:#5e6470;--panel:#fff;--line:#d9dde4;--blue:#315cff;--cyan:#25c7dd;--lime:#c6ff6b;--green:#14a982;--purple:#8d61ff;--orange:#ff824d;--pink:#e85b91;--dark:#0a0d14;--radius:26px;--shadow:0 24px 70px rgba(18,28,48,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.55}a{color:inherit}button,a{touch-action:manipulation}.skip-link{position:fixed;left:12px;top:-60px;background:#fff;padding:.75rem 1rem;z-index:100}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:72px;padding:0 clamp(20px,4vw,64px);background:rgba(244,246,248,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(16,19,26,.08)}.brand{display:flex;align-items:center;gap:10px;font-weight:760;text-decoration:none;letter-spacing:-.02em}.brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--dark);color:var(--cyan);font-size:.74rem;letter-spacing:.04em}.site-header nav{display:flex;gap:24px;align-items:center}.site-header nav a{text-decoration:none;font-size:.9rem;color:#454b56}.site-header nav a:hover{color:var(--blue)}.menu-button{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:.55rem .85rem;font:inherit}
.hero{max-width:1440px;margin:auto;min-height:710px;padding:clamp(70px,10vw,135px) clamp(22px,6vw,90px) 90px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(340px,.75fr);align-items:center;gap:clamp(50px,7vw,110px)}.eyebrow{margin:0 0 20px;color:var(--blue);font-size:.76rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{max-width:900px;margin:0;font-size:clamp(3.1rem,6.5vw,7rem);line-height:.93;letter-spacing:-.068em;font-weight:720}.hero h1 em{font-style:normal;color:var(--blue)}.hero-lede{max-width:720px;margin:32px 0 0;color:var(--muted);font-size:clamp(1.05rem,1.5vw,1.26rem)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:999px;text-decoration:none;font-weight:720}.button.primary{background:var(--blue);color:#fff}.button.ghost{background:#fff;border:1px solid var(--line)}.button:hover{transform:translateY(-2px)}
.system-card{background:var(--dark);color:#fff;border-radius:32px;padding:24px;box-shadow:0 30px 90px rgba(8,12,24,.26);position:relative;overflow:hidden}.system-card:before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;background:var(--blue);filter:blur(90px);opacity:.35;right:-90px;top:-100px}.system-card-head{display:flex;justify-content:space-between;gap:20px;padding-bottom:24px;font-size:.72rem;letter-spacing:.12em;color:#979eac}.live-dot{color:var(--lime);letter-spacing:0}.system-step{position:relative;display:grid;grid-template-columns:46px 1fr;gap:14px;align-items:center;padding:18px 15px;border-top:1px solid rgba(255,255,255,.1)}.system-step b{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);font-size:.78rem;color:var(--cyan)}.system-step strong,.system-step small{display:block}.system-step small{color:#8c94a3;margin-top:3px}.system-step.active{background:rgba(49,92,255,.17);border-radius:16px;border-top-color:transparent}.system-step.active b{background:var(--blue);color:#fff}
.proof-strip{max-width:1310px;margin:0 auto 50px;padding:0 clamp(22px,4vw,50px);display:grid;grid-template-columns:repeat(3,1fr)}.proof-strip div{padding:22px 26px;background:#fff;border:1px solid var(--line);border-right:0}.proof-strip div:first-child{border-radius:18px 0 0 18px}.proof-strip div:last-child{border-right:1px solid var(--line);border-radius:0 18px 18px 0}.proof-strip span,.proof-strip strong{display:block}.proof-strip span{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:3px}
.section{max-width:1440px;margin:auto;padding:110px clamp(22px,6vw,90px)}.section-heading{display:grid;grid-template-columns:1fr .75fr;gap:80px;align-items:end;margin-bottom:46px}.section-heading h2{font-size:clamp(2.5rem,5vw,5rem);line-height:.98;letter-spacing:-.055em;margin:0}.section-heading>p{color:var(--muted);font-size:1.08rem;margin:0}.project-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.project-card.flagship{display:grid;grid-template-columns:110px .9fr 1.1fr;gap:30px;align-items:stretch;background:var(--dark);color:#fff}.project-index{font-size:.72rem;letter-spacing:.12em;color:var(--cyan);font-weight:800}.project-card-copy{padding:24px 0}.tag-row{display:flex;gap:8px;flex-wrap:wrap}.tag-row span{padding:.35rem .58rem;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:.72rem;color:#bdc3d0}.project-card h3{font-size:clamp(2rem,4vw,4.6rem);line-height:1;margin:26px 0 18px;letter-spacing:-.045em}.project-card p{color:#aeb5c2;max-width:650px}.text-link{display:inline-flex;gap:9px;margin-top:26px;color:var(--cyan);font-weight:750;text-decoration:none}.agent-visual{align-self:stretch;min-height:380px;border-radius:20px;padding:28px;background:linear-gradient(145deg,#1a2234,#111522);display:flex;flex-direction:column;justify-content:center;gap:28px;border:1px solid rgba(255,255,255,.08)}.query{max-width:82%;padding:18px 20px;background:#fff;color:#1a1d24;border-radius:18px 18px 18px 5px;font-weight:650}.pipeline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.pipeline span{padding:9px 12px;border:1px solid rgba(141,241,255,.3);background:rgba(141,241,255,.08);border-radius:10px;font-size:.78rem}.pipeline i{font-style:normal;color:#667085}.agent-result{padding:18px;border-radius:14px;background:rgba(198,255,107,.1);border:1px solid rgba(198,255,107,.35)}.agent-result b,.agent-result small{display:block}.agent-result b{color:var(--lime)}.agent-result small{color:#aeb5c2;margin-top:4px}
.reveal{animation:rise .7s ease both}@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.featured-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.feature-card{position:relative;overflow:hidden;display:grid;grid-template-columns:.75fr 1.25fr;gap:24px;min-height:390px;padding:24px;border-radius:var(--radius);background:var(--dark);color:#fff;box-shadow:var(--shadow)}.feature-card.wide{grid-column:span 2;grid-template-columns:.95fr 1.05fr;min-height:440px}.feature-card:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;right:-100px;top:-100px;background:var(--accent);filter:blur(90px);opacity:.24}.feature-card-top{position:absolute;top:20px;left:24px;right:24px;display:flex;justify-content:space-between;color:#8f97a8;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase}.feature-copy{align-self:end;position:relative;z-index:1;padding:40px 4px 4px}.feature-card h3{font-size:clamp(2rem,3.8vw,4.2rem);line-height:.94;letter-spacing:-.05em;margin:20px 0 14px}.feature-card:not(.wide) h3{font-size:clamp(1.8rem,2.7vw,3rem)}.feature-card p{color:#aeb5c2;margin:0;max-width:660px}.mini-system{align-self:center;min-height:210px;border:1px solid rgba(255,255,255,.12);border-radius:20px;background:rgba(255,255,255,.04);display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;padding:24px}.mini-system span{padding:10px 12px;border-radius:10px;background:rgba(255,255,255,.08);font-size:.76rem}.mini-system i{font-style:normal;color:var(--accent)}.project-image{align-self:stretch;margin-top:36px;min-height:250px;border-radius:18px;overflow:hidden;background:#fff}.project-image img{width:100%;height:100%;object-fit:cover;display:block}.tag-row.light span{color:#c5cad4}
.all-projects-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin:120px 0 30px}.all-projects-head h2{font-size:clamp(2.4rem,4vw,4.4rem);line-height:1;letter-spacing:-.05em;margin:0}.all-projects-head>p{color:var(--muted)}.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}.filter{min-height:42px;padding:0 15px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#444b56;font:inherit;font-size:.86rem;cursor:pointer}.filter.active{background:var(--dark);border-color:var(--dark);color:#fff}.project-library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.library-card{min-height:230px;padding:25px;display:flex;justify-content:space-between;gap:20px;text-decoration:none;background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .2s ease,transform .2s ease}.library-card:hover{background:#eef1ff;transform:translateY(-3px)}.library-type{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--blue)}.library-card h3{font-size:1.35rem;line-height:1.1;margin:44px 0 10px}.library-card p{color:var(--muted);font-size:.9rem;margin:0}.library-arrow{color:var(--blue)}
.section-dark{background:var(--dark);color:#fff}.section-dark .section{max-width:1440px}.section-dark .section-heading>p{color:#aeb5c2}.timeline{border-top:1px solid rgba(255,255,255,.14)}.timeline article{display:grid;grid-template-columns:.42fr 1.58fr;gap:40px;padding:35px 0;border-bottom:1px solid rgba(255,255,255,.14)}.timeline-meta{color:var(--cyan);font-size:.78rem;text-transform:uppercase;letter-spacing:.1em}.timeline h3{font-size:clamp(1.5rem,3vw,2.8rem);margin:0;letter-spacing:-.035em}.timeline .role{color:var(--lime);margin:4px 0 14px}.timeline article div:last-child>p:not(.role){max-width:800px;color:#aeb5c2}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.research-grid a{min-height:360px;display:flex;flex-direction:column;padding:28px;border-radius:22px;background:#fff;border:1px solid var(--line);text-decoration:none;box-shadow:var(--shadow)}.research-grid a:nth-child(2){background:#e9edff}.research-grid a:nth-child(3){background:#dff8f2}.research-grid span{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--blue)}.research-grid h3{font-size:1.65rem;line-height:1.08;letter-spacing:-.03em;margin:60px 0 16px}.research-grid p{color:var(--muted)}.research-grid b{margin-top:auto;color:var(--blue);font-size:.9rem}.about{border-top:1px solid var(--line)}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(50px,8vw,120px)}.about h2{font-size:clamp(2.7rem,5.7vw,6rem);line-height:.92;letter-spacing:-.06em;margin:0}.about-copy{font-size:1.15rem;color:var(--muted)}.capability-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.capability-list span{padding:.55rem .75rem;background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--ink);font-size:.84rem}.resume-section{margin:0 clamp(18px,4vw,56px) 28px;padding:clamp(38px,6vw,80px);border-radius:32px;background:var(--lime);display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}.resume-section h2{font-size:clamp(2.8rem,6vw,6.5rem);line-height:.9;letter-spacing:-.06em;margin:0}.resume-section p:not(.eyebrow){max-width:680px}.resume-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.button.dark-outline{border:1px solid rgba(10,13,20,.3)}.text-link.dark{color:var(--ink)}footer{min-height:110px;padding:28px clamp(22px,4vw,64px);display:flex;justify-content:space-between;align-items:center;gap:30px;background:var(--dark);color:#939baa;font-size:.82rem}.footer-brand{color:#fff}
@media(max-width:940px){.site-header nav{display:none;position:absolute;top:72px;left:16px;right:16px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-header nav.open{display:flex}.menu-button{display:block}.hero{grid-template-columns:1fr;min-height:auto}.system-card{max-width:620px}.section-heading,.project-card.flagship,.feature-card,.feature-card.wide,.about-grid,.resume-section{grid-template-columns:1fr}.project-index{margin-bottom:-18px}.agent-visual{min-height:310px}.project-library,.research-grid{grid-template-columns:repeat(2,1fr)}.timeline article{grid-template-columns:1fr}.timeline-meta{margin-bottom:-20px}.feature-card.wide{grid-column:auto}}
@media(max-width:600px){.hero{padding-top:70px}.hero h1{font-size:3.55rem}.proof-strip{grid-template-columns:1fr}.proof-strip div,.proof-strip div:first-child,.proof-strip div:last-child{border:1px solid var(--line);border-bottom:0;border-radius:0}.proof-strip div:first-child{border-radius:18px 18px 0 0}.proof-strip div:last-child{border-bottom:1px solid var(--line);border-radius:0 0 18px 18px}.section{padding-top:78px;padding-bottom:78px}.section-heading{gap:24px}.project-card.flagship{padding:20px}.pipeline i{display:none}.featured-grid,.project-library,.research-grid{grid-template-columns:1fr}.feature-card{min-height:auto}.feature-copy{padding-top:25px}.mini-system{min-height:180px;margin-top:34px}.all-projects-head{align-items:flex-start;flex-direction:column;margin-top:80px}.resume-section{gap:30px}footer{align-items:flex-start;flex-direction:column}.research-grid a{min-height:300px}}
/* 中文备注：核心定位在手机上保持两行，避免 Product 被截断。 */
.hero h1.focus-title{font-size:clamp(3rem,6.5vw,6rem);line-height:1.03;letter-spacing:-.055em}
.feature-card:last-child:nth-child(even){grid-column:1 / -1}
@media(max-width:600px){.hero h1.focus-title{font-size:clamp(2.8rem,12vw,4rem)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}