:root{--bg: #f3f4f6;--surface: #ffffff;--ink: #17191c;--muted: #5d6470;--rule: #d8dce2;--link: #2449c9;--mat: #3a3f46;--mat-line: #4b5159;--mat-text: #8b929c;--bin: #e8dcc4;--bin-slot: #d5c6a8;--pill-red: #d23c3c;--pill-green: #2c9a5e;--pill-yellow: #e2ae1d;--content: 1120px;--gutter: 20px;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px}body{margin:0;background:var(--bg);color:var(--ink);font-family:IBM Plex Sans KR,system-ui,sans-serif;font-size:16px;line-height:1.75;word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure,dl,dd{margin:0}ul{margin:0;padding:0;list-style:none}a{color:var(--link);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:2px solid var(--link);outline-offset:3px;border-radius:2px}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:var(--content);margin:0 auto;padding:14px var(--gutter);background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.topbar-name{font-weight:700;color:var(--ink);text-decoration:none}.topbar ul{display:flex;gap:20px}.topbar nav a{font-size:.9375rem;color:var(--muted);text-decoration:none}.topbar nav a:hover{color:var(--ink)}main,.footer{max-width:var(--content);margin:0 auto;padding:0 var(--gutter)}.hero{display:grid;gap:40px;padding:48px 0 88px;align-items:center}@media(min-width:960px){.hero{grid-template-columns:5fr 6fr;gap:64px;padding:72px 0 120px}}.hero h1{font-size:clamp(2.75rem,7vw,4.25rem);font-weight:700;line-height:1.05;letter-spacing:-.03em}.hero-role{display:block;margin-top:14px;font-size:1.125rem;font-weight:500;letter-spacing:0;color:var(--muted)}.hero-lede{max-width:26ch;margin-top:28px;font-size:1.375rem;font-weight:500;line-height:1.55}.contacts{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:28px;font-size:.9375rem}.tray svg{display:block;width:100%;height:auto}.tray-mat{fill:var(--mat)}.tray-grid{stroke:var(--mat-line);stroke-width:1}.tray-axis{fill:var(--mat-text);font-size:11px;text-anchor:middle}.tray-bin{fill:var(--bin)}.tray-bin-slot{fill:var(--bin-slot)}.pill{transition:transform .6s cubic-bezier(.3,.7,.2,1)}.pill-body{fill:#f4f4f2}.target{fill:none;stroke:#fff;stroke-width:2;transition:transform .35s ease}.tray-controls{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:14px}.tray-colors,.tray-actions{display:flex;flex-wrap:wrap;gap:8px}.tray-btn{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--rule);border-radius:6px;background:var(--surface);color:var(--ink);font:inherit;font-size:.9375rem;line-height:1.4;cursor:pointer}.tray-btn:hover:not(:disabled){border-color:var(--muted)}.tray-btn[aria-pressed=true]{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.tray-btn.primary{background:var(--ink);border-color:var(--ink);color:var(--surface)}.tray-btn:disabled{opacity:.4;cursor:default}.swatch{width:10px;height:10px;border-radius:50%}.tray-status{min-height:1.75em;margin-top:14px;font-weight:500}.tray figcaption{margin-top:4px;font-size:.875rem;color:var(--muted)}.page-section-title{margin-bottom:28px;font-size:1.25rem;font-weight:700}.work{padding:64px 0 24px;border-top:1px solid var(--rule)}.grid-large,.grid-small{display:grid;gap:48px 32px}.grid-small{margin-top:56px}@media(min-width:720px){.grid-large{grid-template-columns:1fr 1fr}.grid-small{grid-template-columns:repeat(3,1fr)}}.card{display:block;color:inherit;text-decoration:none}.frame{aspect-ratio:4 / 3;overflow:hidden;border-radius:6px;background:var(--mat)}.frame img{display:block;width:100%;height:100%;object-fit:cover}.card-title{margin-top:18px;font-size:1.25rem;font-weight:700;line-height:1.3}.card-large .card-title{font-size:1.625rem}.card:hover .card-title{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}.card-subtitle{display:block;margin-top:2px;font-size:.9375rem;font-weight:500;color:var(--muted)}.card-large .card-subtitle{font-size:1.0625rem}.card-summary{max-width:34em;margin-top:10px;font-size:.9375rem;line-height:1.7}.card-meta{margin-top:10px;font-size:.8125rem;color:var(--muted)}.home-about{padding:72px 0 64px}.strengths{display:grid;gap:24px 32px}@media(min-width:720px){.strengths{grid-template-columns:repeat(4,1fr)}}.strengths li{padding-top:14px;border-top:2px solid var(--ink)}.strength-claim{font-weight:500;line-height:1.6}.strength-proof{margin-top:6px;font-size:.875rem;color:var(--muted)}.home-about-more{margin-top:32px}.crumb{padding-top:32px;font-size:.9375rem}.page-head{max-width:760px;padding:24px 0 40px}.page-title{font-size:clamp(2.5rem,6vw,3.75rem);font-weight:700;line-height:1.1;letter-spacing:-.025em}.page-lede{margin-top:10px;font-size:1.25rem;font-weight:500;color:var(--muted)}.facts{display:grid;gap:12px 32px;margin-top:32px}@media(min-width:720px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}}.facts dt{font-size:.8125rem;color:var(--muted)}.facts dd{font-size:.9375rem}.facts-links{display:flex;flex-wrap:wrap;gap:4px 16px}.project-cover{display:flex;justify-content:center;padding:24px;border-radius:8px;background:var(--mat)}.project-cover img{display:block;max-width:100%;max-height:560px;border-radius:4px}.project-body{max-width:760px;margin:0 auto;padding:56px 0 24px}.project-intro p{font-size:1.125rem;line-height:1.8}.project-intro p+p{margin-top:16px}.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin:48px 0;padding:24px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}@media(min-width:720px){.metrics{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}}.metrics div{display:flex;flex-direction:column-reverse;gap:2px}.metrics dt{font-size:.8125rem;line-height:1.5;color:var(--muted)}.metrics dd{font-size:1.5rem;font-weight:700;letter-spacing:-.01em;font-variant-numeric:tabular-nums}.video{margin-bottom:40px}.video-frame{aspect-ratio:16 / 9;overflow:hidden;border-radius:8px;background:var(--mat)}.video-frame iframe{display:block;width:100%;height:100%;border:0}.video figcaption,.fig figcaption{margin-top:8px;font-size:.8125rem;line-height:1.6;color:var(--muted)}.block{margin-top:56px}.block h2{margin-bottom:16px;font-size:1.375rem;font-weight:700;line-height:1.4}.block>p+p{margin-top:14px}.block-list{margin-top:16px;padding-left:1.1em;list-style:disc}.block-list li+li{margin-top:10px}.block-list li::marker{color:var(--muted)}.figures{display:grid;gap:28px 20px;margin-top:28px}@media(min-width:640px){.figures{grid-template-columns:1fr 1fr}.fig{grid-column:1 / -1}.fig-half{grid-column:auto}}.fig img{display:block;width:100%;height:auto;border-radius:6px;border:1px solid var(--rule);background:var(--surface)}.fig:not(.fig-half) img{width:auto;max-width:100%;margin:0 auto}.fig-half img{aspect-ratio:4 / 3}.fig-photo img{object-fit:cover}.fig-chart img{object-fit:contain;padding:8px}.stack{margin-top:56px;padding-top:20px;border-top:1px solid var(--rule);font-size:.9375rem}.stack span{display:block;font-size:.8125rem;color:var(--muted)}.next{margin:48px 0 72px}.next-link{display:block;max-width:760px;margin:0 auto;padding:28px 0;border-top:2px solid var(--ink);color:inherit;text-decoration:none}.next-label{display:block;font-size:.8125rem;color:var(--muted)}.next-title{display:block;margin-top:4px;font-size:1.75rem;font-weight:700}.next-link:hover .next-title{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}.next-subtitle{color:var(--muted)}.about-page{padding-top:40px;padding-bottom:40px}.about-prose{max-width:760px}.about-prose p{font-size:1.125rem;line-height:1.8}.about-prose p+p{margin-top:16px}.about-block{max-width:760px;margin-top:64px}.about-block h2{margin-bottom:20px;font-size:1.25rem;font-weight:700}.not-found{padding:96px 0}.timeline{display:flex;flex-direction:column}.timeline-row{display:grid;gap:4px;padding:18px 0;border-bottom:1px solid var(--rule)}.timeline-row:first-child{padding-top:0}@media(min-width:640px){.timeline-row{grid-template-columns:160px 1fr;gap:24px}}.timeline dt{font-size:.875rem;line-height:1.75rem;color:var(--muted);font-variant-numeric:tabular-nums}.timeline-title{font-weight:500}.timeline-org{font-weight:400;color:var(--muted)}.timeline-body{max-width:40em;margin-top:4px;font-size:.9375rem}dd.timeline-body{margin-top:0}.footer{padding-top:56px;padding-bottom:72px;border-top:1px solid var(--rule)}.footer-lede{font-size:1.25rem;font-weight:700}.footer .contacts{margin-top:12px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pill,.target{transition:none}}

/* ===== 시안 C_로봇연구실카드 ===== */
/* 시안 C: 로봇 연구자 모던 카드형 (cheng-chi.github.io · tonyzhaozh.github.io 분위기 참고). 원본 CSS 위에 덮어쓰는 규칙만 */
:root{--bg:#f4f5f7;--surface:#ffffff;--ink:#101828;--muted:#667085;--rule:#e4e7ec;--link:#8c1515;--content:1120px}
body{font-family:"Source Sans 3","Pretendard Variable",Pretendard,system-ui,sans-serif;font-size:16.5px;line-height:1.7}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.topbar{background:rgba(255,255,255,.88);border-bottom:1px solid var(--rule);max-width:none;padding:14px max(var(--gutter),calc((100vw - var(--content))/2 + var(--gutter)))}
.topbar-name{font-weight:700}
.topbar nav a{font-weight:600;color:var(--ink)}
.hero{margin-top:36px;padding:48px !important;border-radius:16px;background:var(--surface);box-shadow:0 1px 2px rgba(16,24,40,.05),0 12px 32px -12px rgba(16,24,40,.12)}
@media(max-width:700px){.hero{padding:24px !important}}
.hero h1{font-size:clamp(2.25rem,5vw,3rem);letter-spacing:-.02em}
.hero-role{margin-top:14px;display:table;padding:3px 12px;border-radius:999px;background:#fbeaea;color:var(--link);font-size:.875rem;font-weight:600}
.hero-lede{font-size:1.25rem;font-weight:600}
.contacts a{display:inline-block;padding:6px 14px;border:1px solid var(--rule);border-radius:999px;color:var(--ink);font-size:.875rem;font-weight:600}
.contacts a:hover{border-color:var(--link);color:var(--link);text-decoration:none}
.tray{padding:16px;border-radius:12px;background:var(--mat)}
.tray-btn{border-radius:8px;background:#2a2f36;border-color:#3a3f46;color:#f2f4f7}
.tray-btn[aria-pressed=true]{border-color:#fff;box-shadow:inset 0 0 0 1px #fff}
.tray-btn.primary{background:#fff;color:#101828;border-color:#fff;font-weight:700}
.tray-status{color:#f2f4f7}.tray figcaption{color:#98a2b3}
.page-section-title{font-size:1.5rem;font-weight:700;letter-spacing:-.01em}
.work{padding:72px 0 16px;border-top:0}
.grid-large,.grid-small{gap:28px}
.grid-small{margin-top:28px}
.card{display:flex;flex-direction:column;overflow:hidden;border-radius:14px;background:var(--surface);box-shadow:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.08);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -16px rgba(16,24,40,.22)}
.card .frame{border-radius:0}
.card-title{margin:18px 22px 0;font-weight:700}
.card:hover .card-title{text-decoration:none;color:var(--link)}
.card-subtitle{color:var(--link);font-weight:600}
.card-summary{margin:10px 22px 0;color:#344054}
.card-meta{margin:auto 22px 22px;padding-top:14px;font-size:.8125rem}
.home-about{padding:56px 0 64px}
.strengths{gap:20px}
.strengths li{padding:22px;border-top:0;border-radius:14px;background:var(--surface);box-shadow:0 1px 3px rgba(16,24,40,.08);border-left:3px solid var(--link)}
.home-about-more a{font-weight:700}
/* 프로젝트·소개 페이지 */
.page-head{padding:28px 0 36px}
.page-lede{color:var(--link);font-weight:600}
.facts{padding:20px 24px;border-radius:12px;background:var(--surface);box-shadow:0 1px 3px rgba(16,24,40,.08)}
.project-cover{border-radius:16px}
.project-body{max-width:800px}
.metrics{gap:14px;padding:0;border:0}
.metrics div{padding:18px;border-radius:12px;background:var(--surface);box-shadow:0 1px 3px rgba(16,24,40,.08)}
.metrics dd{color:var(--link)}
.block h2{font-size:1.5rem}
.fig img,.video-frame{border-radius:12px}
.stack{padding:20px 24px;border:0;border-radius:12px;background:var(--surface)}
.next-link{padding:24px 28px;border:0;border-radius:14px;background:var(--surface);box-shadow:0 1px 3px rgba(16,24,40,.08)}
.next-link:hover .next-title{color:var(--link);text-decoration:none}
.timeline{padding:8px 24px;border-radius:14px;background:var(--surface);box-shadow:0 1px 3px rgba(16,24,40,.08)}
.timeline-row:first-child{padding-top:18px}
.timeline-row:last-child{border-bottom:0}
.footer{border-top:1px solid var(--rule)}
/* 프로필 사진 */
.hero-text:before{content:"";display:block;width:112px;height:112px;margin-bottom:22px;border-radius:50%;background:url(/images/profile.jpg) center 28%/cover;border:4px solid #fff;box-shadow:0 8px 24px -8px rgba(16,24,40,.35)}
/* 약통: 담는 칸 하나 */
.tray-bin-on{fill:#a99368}