:root{--blue:#2256ff;--mint:#0cbaa0;--ink:#141923;--muted:#667083;--line:#e2e7f0;--pale:#f5f8ff;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;font-synthesis:none;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:6px}img{display:block;max-width:100%}::selection{background:#d9e3ff;color:var(--ink)}
.skip-link{position:fixed;top:12px;left:12px;z-index:20;padding:12px 16px;background:var(--blue);color:#fff;transform:translateY(-150%)}.skip-link:focus{transform:none}
.home{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,320px);gap:5vw;padding:30px 4.3vw 32px 6.25vw;max-width:2100px;margin:auto}
.intro{position:sticky;top:30px;height:calc(100svh - 62px);min-height:520px;display:flex;flex-direction:column;align-items:flex-start;isolation:isolate}
.identity{display:inline-flex;gap:16px;align-items:baseline;padding-top:20px;font-size:1.25rem;font-weight:600;letter-spacing:.05em}.identity-en{font-size:.75rem;font-weight:400;letter-spacing:.14em;color:var(--muted)}
.intro-main{margin:auto 0;padding:65px 0 85px;position:relative}.eyebrow{margin:0 0 30px;font-size:.8125rem;letter-spacing:.09em;color:var(--muted);line-height:1.8}
h1{font-size:clamp(3.2rem,5vw,6rem);line-height:1.38;letter-spacing:-.055em;font-weight:500;margin:0}.blue{color:var(--blue)}
.about-link{display:inline-flex;gap:36px;align-items:center;font-size:1rem;margin-top:48px;padding:12px 0;border-bottom:1px solid var(--ink);transition:color .2s,border-color .2s}.about-link span{font-size:1.25rem}.about-link:hover{color:var(--blue);border-color:var(--blue)}
.intro .about-link{gap:30px;border:1px solid #d9e1f1;border-radius:40px;background:#ffffffc9;backdrop-filter:blur(8px);padding:9px 9px 9px 23px;box-shadow:0 5px 24px #2256ff06}.intro .about-link span{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;transition:transform .25s}.intro .about-link:hover{border-color:var(--blue)}.intro .about-link:hover span{transform:rotate(45deg)}
.intro-foot{font-size:.8125rem;color:var(--muted);letter-spacing:.1em;margin:0 0 16px}
.intro-art{position:absolute;right:-8px;top:55%;width:clamp(320px,31vw,445px);aspect-ratio:1;transform:translateY(-50%);z-index:-1;pointer-events:none}
.intro-art img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.projects{display:flex;flex-direction:column;gap:16px;min-width:0}.project-card{display:flex;align-items:center;min-width:0;min-height:clamp(144px,17svh,188px);position:relative;isolation:isolate;border-radius:15px;overflow:hidden;background:#171d26;color:white;transition:transform .3s,box-shadow .3s}.project-card:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#000c 0,#000a 48%,#0007 100%);transition:background .3s}.project-art{position:absolute;inset:0;z-index:-2;overflow:hidden;background:#697995}.project-art.oven{background:#64837f}.project-art.loan{background:#747d91}.project-art.credit{background:#5d7195}.project-art.mobility{background:#69837c}.project-art img{position:absolute;right:-34px;top:50%;width:295px;height:295px;max-width:none;object-fit:contain;opacity:.9;transform:translateY(-50%) rotate(-8deg) scale(1.32);transition:transform .6s,opacity .6s}.project-art.oven img{transform:translateY(-50%) rotate(8deg) scale(1.48)}.project-art.loan img{transform:translateY(-50%) rotate(-9deg) scale(1.45)}.project-art.credit img{transform:translateY(-50%) rotate(7deg) scale(1.4)}.project-art.mobility img{transform:translateY(-50%) rotate(-5deg) scale(1.35)}.project-card:hover .project-art img,.project-card:focus-visible .project-art img{transform:translateY(-50%) rotate(0) scale(1.55);opacity:1}.project-card:hover{transform:translateX(-5px);box-shadow:8px 10px 22px #17234113}
.project-info{width:100%;display:grid;grid-template-columns:minmax(0,1fr) 22px;align-items:center;column-gap:12px;padding:24px 26px;position:relative}.project-num{grid-column:1/-1;font-size:.75rem;color:#ffffffad;line-height:1;margin-bottom:15px;font-variant-numeric:tabular-nums;letter-spacing:.06em}.project-info h2{font-size:1.5rem;font-weight:600;line-height:1.4;letter-spacing:-.025em;margin:0}.project-info p{font-size:.8125rem;color:#ffffffe0;line-height:1.6;margin:8px 0 0}.project-arrow{font-size:1.25rem;align-self:center;line-height:1;transition:transform .2s,color .2s}.project-card:hover .project-arrow{color:#fff;transform:translate(2px,-2px)}
@media(min-width:1700px){.home{grid-template-columns:minmax(0,1fr) 320px}.intro-art{width:500px;right:4%}}
@media(max-width:1100px){.intro-art{width:220px;right:12px;top:9%;transform:none}}
@media(max-width:1050px){.home{gap:32px;padding-left:40px;padding-right:32px;grid-template-columns:minmax(0,1fr) 280px}h1{font-size:3.2rem}.intro-main{padding:65px 0}.identity{flex-wrap:wrap;gap:8px 14px}.project-info{padding:23px}.project-info h2{font-size:1.3125rem}.project-info p{font-size:.8125rem}}
@media(max-width:760px){.home{display:block;padding:25px 24px 40px}.intro{position:relative;top:auto;height:auto;min-height:0}.identity{padding:0;font-size:1.125rem}.intro-main{padding:142px 0 48px}.eyebrow{font-size:.75rem;margin-bottom:20px}h1{font-size:clamp(2.625rem,8.8vw,4.1rem);letter-spacing:-.05em}.intro .about-link{margin-top:30px;padding:7px 7px 7px 20px}.intro .about-link span{width:32px;height:32px}.intro-foot{display:none}.intro-art{right:0;top:27px;width:170px;transform:none}.projects{gap:14px}.project-card{min-height:152px;border-radius:13px}.project-info{padding:23px}.project-info h2{font-size:1.375rem}.project-info p{font-size:.8125rem}.project-art img{right:-42px}.project-card:hover{transform:none}}
.topbar{height:76px;display:flex;gap:24px;align-items:center;justify-content:space-between;padding:0 4.3vw;border-bottom:1px solid var(--line);background:#ffffffed;backdrop-filter:blur(12px);position:sticky;top:0;z-index:5;font-size:.875rem}.back-link{display:inline-flex;align-items:center;gap:12px;line-height:1.5}.topbar-label{color:var(--muted);font-size:.8125rem}.topbar-about{color:var(--muted)}.topbar a:hover{color:var(--blue)}
.case-page{max-width:1720px;padding:0 4.3vw;margin:auto}.case-intro{padding:72px 0 64px;display:grid;grid-template-columns:minmax(0,1.65fr) minmax(260px,1fr);gap:64px;align-items:center;border-bottom:1px solid var(--line)}.case-intro .eyebrow{margin-bottom:22px}.case-intro h1{font-size:clamp(2.25rem,3.5vw,3.5rem);line-height:1.35;letter-spacing:-.035em}.case-subtitle{font-size:1.5rem;line-height:1.5;margin:14px 0 28px;color:var(--muted)}.case-description{font-size:1.0625rem;line-height:1.9;max-width:680px;margin:0}.case-meta{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:32px 0 0;padding-top:23px;border-top:1px solid var(--line)}.case-meta dt{font-size:.8125rem;color:var(--muted);margin-bottom:10px}.case-meta dd{font-size:.9375rem;line-height:1.7;margin:0}.ownership{color:var(--muted);font-size:.8125rem;line-height:1.8;margin:22px 0 0}.case-cover{width:100%;max-height:370px;object-fit:contain}.case-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:40px;padding:44px 0 64px}.case-sidebar{align-self:start;position:sticky;top:110px}.contents summary{font-size:.875rem;color:var(--muted);list-style:none;display:flex;justify-content:space-between;cursor:pointer;margin-bottom:20px}.contents summary::-webkit-details-marker{display:none}.contents nav{display:flex;flex-direction:column;gap:17px}.contents nav a{display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;font-size:.875rem;line-height:1.7;color:var(--muted)}.contents nav a span{font-size:.75rem;color:#8a93a2;padding-top:2px}.contents nav a:hover{color:var(--blue)}.case-pages{min-width:0}.case-section{scroll-margin-top:104px;margin-bottom:32px}.page-image{display:block;width:100%;border:1px solid var(--line);background:#fff;padding:0;cursor:zoom-in;position:relative}.page-image img{width:100%;height:auto}.image-zoom{position:absolute;bottom:12px;right:12px;font-size:.75rem;color:var(--muted);background:#ffffffed;border:1px solid var(--line);padding:8px 12px;opacity:0;transition:opacity .2s}.page-image:hover .image-zoom,.page-image:focus-visible .image-zoom{opacity:1}.mobile-page-copy{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.case-next{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 0 64px;border-top:1px solid var(--line)}.next-link{display:flex;flex-direction:column;gap:10px;text-align:right}.next-link span{font-size:.8125rem;color:var(--muted)}.next-link strong{font-size:1.375rem;font-weight:500}.next-link:hover{color:var(--blue)}
.viewer-open{overflow:hidden}.image-dialog{width:calc(100vw - 32px);height:calc(100svh - 32px);max-width:1800px;max-height:none;border:1px solid var(--line);padding:0;background:#f3f5f8}.image-dialog::backdrop{background:#17213899;backdrop-filter:blur(4px)}.viewer-toolbar{height:60px;padding:0 20px;display:flex;gap:16px;align-items:center;justify-content:space-between;background:white;border-bottom:1px solid var(--line)}.viewer-title{font-size:.875rem}.viewer-toolbar>div{display:flex;gap:12px;flex-shrink:0}.viewer-toolbar button{border:1px solid var(--line);background:#fff;color:var(--ink);font-size:.875rem;min-height:36px;padding:6px 12px;cursor:pointer}.viewer-toolbar button:hover{color:var(--blue);border-color:var(--blue)}.viewer-body{height:calc(100% - 60px);overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:24px}.viewer-image{width:100%;height:100%;object-fit:contain;max-width:1586px}.original-size .viewer-body{display:block}.original-size .viewer-image{width:1586px;max-width:none;height:auto}
.about-page{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:10vw;max-width:1500px;padding:90px 6.25vw 100px;margin:auto}.about-title h1{font-size:clamp(2.25rem,3.2vw,3.4rem);line-height:1.5}.about-title{align-self:start;position:sticky;top:160px}.about-body{font-size:1rem;line-height:1.95}.about-body p{margin:0 0 20px}.about-lead{font-size:1.25rem;line-height:1.8}.about-section{border-top:1px solid var(--line);padding-top:25px;margin-top:36px}.about-section h2{font-size:.875rem;font-weight:400;color:var(--muted);margin:0 0 16px}.education{margin:0}.education>div+div{margin-top:24px}.education dt{font-size:1rem}.education dd{margin:4px 0 0;color:var(--muted);font-size:.875rem}.education dd span{display:block;font-size:.8125rem;margin-top:4px}.about-contact a{font-size:1.125rem;overflow-wrap:anywhere}.about-contact a:hover{color:var(--blue)}.about-contact p{margin:12px 0 0;color:var(--muted);font-size:.875rem}.error-page{padding:100px 6.25vw}.error-page h1{font-size:2.5rem}.error-page p{font-size:1rem;line-height:1.7}
@media(max-width:1100px){.case-layout{grid-template-columns:175px minmax(0,1fr);gap:26px}.case-intro{gap:32px}.about-page{gap:6vw}.about-title h1{font-size:2.3rem}}
@media(max-width:900px){.case-layout{display:block;padding-top:24px}.case-sidebar{position:static}.contents{padding:0 0 20px;border-bottom:1px solid var(--line);margin-bottom:24px}.contents summary{margin:0;font-size:1rem;padding:8px 0}.contents nav{margin-top:20px;gap:16px}.contents nav a{font-size:.9375rem}.case-intro{grid-template-columns:1fr;padding-top:48px;gap:24px}.case-cover{display:none}.mobile-page-copy{position:static;width:auto;height:auto;clip-path:none;overflow:visible;margin-bottom:20px}.mobile-page-copy .eyebrow{font-size:.8125rem;margin:0 0 12px;color:var(--blue)}.mobile-page-copy h2{font-size:1.375rem;line-height:1.6;letter-spacing:-.02em;font-weight:500;margin:0 0 12px}.mobile-page-copy>p:last-child{font-size:1rem;line-height:1.9;color:var(--muted);margin:0}.case-section{margin-bottom:48px}.image-zoom{opacity:1;bottom:8px;right:8px;padding:6px 9px}.about-page{display:block;padding-top:48px;max-width:700px}.about-title{position:static;padding-bottom:48px}.about-title h1{font-size:clamp(2rem,5vw,3rem)}.about-title .eyebrow{margin-bottom:20px}}
@media(max-width:540px){.topbar{height:64px;padding:0 24px}.topbar-label{display:none}.case-page{padding:0 24px}.case-intro{padding:40px 0}.case-intro h1{font-size:2rem}.case-subtitle{font-size:1.25rem;margin:12px 0 24px}.case-description{font-size:1rem}.case-meta{grid-template-columns:1fr;gap:20px;margin-top:24px}.case-next{align-items:flex-start;padding:24px 0 40px}.next-link strong{font-size:1rem}.case-next .back-link{font-size:.875rem;white-space:nowrap}.case-section{scroll-margin-top:88px}.image-dialog{width:100vw;height:100svh;border:0;max-width:none;margin:0}.viewer-toolbar{padding:0 12px;gap:10px;height:64px}.viewer-title{font-size:.75rem;max-width:130px}.viewer-toolbar>div{gap:8px}.viewer-toolbar button{font-size:.8125rem;padding:6px 10px}.viewer-body{padding:10px;height:calc(100% - 64px)}.about-page{padding:40px 24px 64px}.about-title h1{font-size:clamp(1.625rem,6.7vw,2.25rem)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Mechanical-detail hero: quiet copy at left, exposed assembly behind it. */
.intro{min-height:660px}
.intro-art{inset:-30px -34px -32px -6.25vw;width:auto;height:auto;aspect-ratio:auto;transform:none;overflow:hidden}
.intro-art img{width:100%;height:100%;object-fit:cover;object-position:64% center;mix-blend-mode:normal}
.intro-art::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff 0%,#fffffff5 8%,#ffffffba 31%,#ffffff30 62%,#ffffff00 88%),linear-gradient(0deg,#fff 0%,#ffffff00 15%,#ffffff00 86%,#ffffffce 100%);pointer-events:none}
.intro-main{padding:60px 0 70px}
.intro-main .eyebrow{margin-bottom:24px}
.intro-main h1{font-size:clamp(2.875rem,4.45vw,5.5rem);line-height:1.31;letter-spacing:-.04em;font-weight:500}
.quote-credit{font-size:1rem;line-height:1.75;letter-spacing:.08em;color:#59616d;margin:24px 0 0}
.intro .about-link{margin-top:37px;background:#ffffffeb;box-shadow:none}
.intro .about-link span{font:400 1.375rem/1 Arial,sans-serif}
.intro .about-link:hover span{transform:translateX(2px)}
.project-arrow{font:400 1.5rem/1 Arial,sans-serif;text-align:right}
.project-card:hover .project-arrow{transform:translateX(3px)}
.about-title .about-motto{font-size:clamp(2.25rem,4.15vw,4rem);line-height:1.3;letter-spacing:-.055em;font-weight:500}
@media(min-width:1700px){.intro-art{right:-48px}.intro-art img{object-position:60% center}}
@media(max-width:1050px){.intro{min-height:650px}.intro-art{left:-40px;right:-16px}.intro-art img{object-position:62% center}.intro-main h1{font-size:clamp(2.5rem,4.6vw,3.25rem)}}
@media(max-width:760px){.intro{min-height:560px}.intro-main{padding:90px 0 58px;margin:0}.intro-art{inset:-25px -24px 0}.intro-art img{object-position:56% center}.intro-art::after{background:linear-gradient(90deg,#ffffffed 0%,#ffffffcb 24%,#ffffff66 56%,#ffffff00 90%),linear-gradient(0deg,#fff 0%,#ffffff00 21%,#ffffff00 85%,#ffffffb0 100%)}.intro-main h1{font-size:clamp(2.625rem,8.8vw,4.1rem)}.quote-credit{font-size:.9375rem;margin-top:19px}.intro .about-link{margin-top:27px}.intro .about-link span{font-size:1.25rem}.projects{position:relative}.about-title .about-motto{font-size:clamp(2rem,7.4vw,3.5rem)}}