:root {
  --paper: #f6f6ef;
  --white: #fbfbf7;
  --ink: #173026;
  --forest: #173d2b;
  --moss: #66816b;
  --sage: #dfe8dc;
  --lime: #cce66b;
  --line: rgba(23, 48, 38, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; width: 100%; }
.section-shell { width: min(1280px, calc(100% - 96px)); margin: 0 auto; }

.site-header { position: fixed; z-index: 50; top: 0; left: 0; width: 100%; height: 88px; padding: 0 48px; display: flex; align-items: center; justify-content: space-between; color: white; transition: .35s ease; }
.site-header.is-scrolled { height: 68px; background: rgba(246,246,239,.9); backdrop-filter: blur(18px); color: var(--ink); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; letter-spacing: .13em; }
.brand span { font: 600 14px/1 Arial, sans-serif; }
.brand small { font: 10px/1.1 Arial, sans-serif; opacity: .7; }
.brand i { width: 22px; height: 1px; background: currentColor; opacity: .6; }
nav { display: flex; gap: 36px; align-items: center; font-size: 13px; letter-spacing: .08em; }
nav a { transition: opacity .2s; }
nav a:hover { opacity: .58; }
.nav-cta { border: 1px solid currentColor; border-radius: 99px; padding: 10px 18px; }
.menu-toggle { display: none; border: 0; background: none; color: inherit; }

.hero { min-height: 100svh; position: relative; overflow: hidden; color: white; background: #314e3c; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-wash { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(18,50,35,.73) 0%, rgba(24,55,39,.34) 52%, rgba(20,41,31,.16) 100%), linear-gradient(0deg, rgba(10,31,21,.45), transparent 50%); }
.hero-grain { pointer-events: none; position: absolute; inset: 0; opacity: .16; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E"); }
.hero-copy { position: absolute; left: 8%; top: 51%; transform: translateY(-50%); z-index: 2; }
.eyebrow, .kicker { font: 600 11px/1.5 Arial, sans-serif; letter-spacing: .19em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 14px; }
.eyebrow span { background: var(--lime); color: var(--forest); padding: 7px 9px; border-radius: 2px; }
.eyebrow b { width: 26px; height: 1px; background: rgba(255,255,255,.65); }
.hero h1 { margin: 28px 0 24px; font-family: "Songti SC", "STSong", serif; font-size: clamp(56px, 7.1vw, 112px); line-height: .98; letter-spacing: -.06em; font-weight: 400; }
.hero-intro { margin: 0 0 38px; font-size: 15px; line-height: 1.9; letter-spacing: .08em; opacity: .9; }
.hero-actions { display: flex; gap: 28px; align-items: center; }
.primary-button { min-width: 188px; padding: 16px 20px; display: inline-flex; justify-content: space-between; background: var(--lime); color: var(--forest); border: 1px solid var(--lime); font-size: 13px; transition: .25s; }
.primary-button:hover { background: white; border-color: white; }
.text-link { font-size: 13px; border-bottom: 1px solid rgba(255,255,255,.5); padding: 10px 0; }
.text-link span { margin-left: 14px; }
.reel-status { position: absolute; z-index: 3; right: 6%; bottom: 14%; display: flex; align-items: center; gap: 15px; }
.reel-play { width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.75); border-radius: 50%; display: grid; place-items: center; backdrop-filter: blur(8px); }
.reel-play span { font-size: 11px; margin-left: 3px; }
.reel-status strong, .reel-status small { display: block; font: 10px/1.5 Arial; letter-spacing: .13em; }
.reel-status small { opacity: .65; }
.hero-meta { position: absolute; z-index: 2; left: 48px; right: 48px; bottom: 28px; display: flex; justify-content: space-between; font: 9px/1 Arial; letter-spacing: .15em; opacity: .65; }

.intro-section { padding: 132px 0 120px; }
.section-index { font: 10px/1 Arial; letter-spacing: .17em; color: var(--moss); }
.manifesto { margin: 52px 0 0 18%; display: grid; grid-template-columns: 1.4fr .7fr; gap: 12%; align-items: end; }
.manifesto h2 { margin: 0; font-family: "Songti SC", serif; font-weight: 400; font-size: clamp(40px, 5vw, 74px); line-height: 1.18; letter-spacing: -.05em; }
.manifesto p { margin: 0 0 7px; color: #556b5e; font-size: 14px; line-height: 2; }

.works-section { padding-bottom: 144px; }
.section-heading { border-top: 1px solid var(--line); padding-top: 26px; margin-bottom: 48px; display: flex; justify-content: space-between; align-items: start; }
.section-heading h2 { margin: 8px 0 0; font: 400 clamp(36px,4vw,60px)/1.15 "Songti SC", serif; letter-spacing: -.04em; }
.kicker { color: var(--moss); margin: 0; }
.section-note { margin: 0; color: var(--moss); font: 10px/1.8 Arial; letter-spacing: .13em; text-align: right; }
.project-list { display: grid; gap: 86px; }
.project-card, .lab-card { cursor: pointer; }
.project-card:focus-visible, .lab-card:focus-visible { outline: 3px solid var(--lime); outline-offset: 6px; }
.project-card:nth-child(even) { width: 78%; margin-left: auto; }
.project-image-wrap { aspect-ratio: 16 / 8.5; position: relative; overflow: hidden; background: #dde5db; }
.project-image-wrap img { height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1), filter .5s; }
.project-card:hover img { transform: scale(1.035); filter: saturate(1.08); }
.project-number { position: absolute; left: 18px; top: 17px; padding: 7px 9px; background: rgba(246,246,239,.84); backdrop-filter: blur(8px); color: var(--forest); font: 10px/1 Arial; }
.view-project { position: absolute; right: 18px; bottom: 18px; padding: 12px 14px; background: rgba(246,246,239,.9); color: var(--forest); font-size: 11px; transform: translateY(8px); opacity: 0; transition: .3s; }
.view-project b { margin-left: 18px; }
.project-card:hover .view-project { opacity: 1; transform: none; }
.project-info { padding-top: 18px; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding-bottom: 22px; }
.project-info p, .project-info em, .project-role span { margin: 0; color: var(--moss); font: normal 9px/1.4 Arial; letter-spacing: .12em; }
.project-info h3 { margin: 9px 0 5px; font: 400 27px/1.2 "Songti SC", serif; }
.project-role { display: flex; flex-direction: column; text-align: right; justify-content: space-between; }
.placeholder-note { margin-top: 38px; color: var(--moss); font-size: 11px; text-align: center; }

.lab-section { background: var(--forest); color: #f4f5ea; padding: 128px 0 80px; overflow: hidden; }
.section-heading.light { border-color: rgba(255,255,255,.22); }
.section-heading.light .kicker, .section-heading.light .section-note { color: #b9c8ba; }
.lab-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 32px; align-items: start; }
.lab-card:nth-child(2) { margin-top: 150px; }
.lab-image { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: #e2e9db; }
.lab-card:nth-child(2) .lab-image { aspect-ratio: 3 / 4; }
.lab-image img { height: 100%; object-fit: cover; opacity: .88; transition: .7s; }
.lab-card:hover img { transform: scale(1.04); opacity: 1; }
.lab-image > span { position: absolute; top: 15px; left: 15px; color: var(--forest); background: var(--lime); padding: 6px 8px; font: 10px/1 Arial; }
.lab-card > p { margin: 17px 0 6px; font: 9px/1 Arial; letter-spacing: .16em; color: #9eb2a2; }
.lab-card h3 { margin: 0 0 8px; font: 400 28px/1.2 "Songti SC", serif; }
.lab-card small { color: #b9c8ba; font-size: 11px; }
.lab-footer { margin-top: 100px; border-top: 1px solid rgba(255,255,255,.2); padding-top: 22px; display: flex; align-items: center; gap: 20px; color: #a5b6a7; font: 9px/1 Arial; letter-spacing: .15em; }
.lab-footer i { height: 1px; flex: 1; background: rgba(255,255,255,.2); }

.capabilities { padding: 140px 0; }
.ability-list { border-top: 1px solid var(--line); }
.ability-list article { min-height: 138px; display: grid; grid-template-columns: 7% 28% 1fr 5%; align-items: center; border-bottom: 1px solid var(--line); transition: .3s; }
.ability-list article:hover { padding-left: 18px; background: var(--sage); }
.ability-list span { color: var(--moss); font: 10px/1 Arial; }
.ability-list h3 { font: 400 25px/1.2 "Songti SC", serif; }
.ability-list p { max-width: 560px; font-size: 13px; line-height: 1.8; color: #53695b; }
.ability-list b { justify-self: end; font-weight: 400; }
.process-line { margin-top: 76px; display: grid; grid-template-columns: repeat(7,1fr); border-top: 1px solid var(--line); }
.process-line span { padding: 18px 8px 0 0; border-right: 1px solid var(--line); position: relative; color: #53695b; font-size: 11px; }
.process-line small { display: block; margin-top: 30px; font: 9px/1 Arial; color: var(--moss); }

.about-section { background: var(--sage); padding: 128px 0; }
.about-inner { display: grid; grid-template-columns: .8fr 1.15fr; gap: 12%; align-items: center; }
.about-portrait { position: relative; }
.portrait-placeholder { aspect-ratio: 4/5; background: linear-gradient(145deg,#a8bba5,#e4ebdd); display: grid; place-items: center; text-align: center; color: rgba(23,61,43,.45); }
.portrait-placeholder span { font: 400 clamp(42px,6vw,82px)/.86 "Songti SC", serif; }
.portrait-placeholder small { position: absolute; bottom: 38px; font-size: 10px; letter-spacing: .15em; }
.portrait-label { position: absolute; left: -1px; top: -26px; font: 9px/1 Arial; letter-spacing: .14em; }
.about-copy h2 { font: 400 clamp(40px,5vw,70px)/1.15 "Songti SC", serif; margin: 18px 0 38px; }
.about-copy h2 span { display: block; color: var(--moss); }
.about-copy p { color: #50675a; font-size: 13px; line-height: 2; max-width: 620px; }
.about-copy .lead { color: var(--ink); font: 400 21px/1.8 "Songti SC", serif; }
.about-copy dl { margin-top: 44px; border-top: 1px solid var(--line); }
.about-copy dl div { display: grid; grid-template-columns: 23% 1fr; border-bottom: 1px solid var(--line); padding: 16px 0; font-size: 11px; }
.about-copy dt { color: var(--moss); }
.about-copy dd { margin: 0; }
.about-copy dd i { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: #55a563; box-shadow: 0 0 0 4px rgba(85,165,99,.12); }

.contact-section { text-align: center; padding: 138px 24px 120px; }
.contact-section .section-index { text-align: left; width: min(1280px, 100%); margin: 0 auto 72px; }
.contact-section h2 { margin: 24px auto 30px; font: 400 clamp(48px,7vw,100px)/1.08 "Songti SC", serif; letter-spacing: -.06em; }
.contact-section h2 em { color: var(--moss); font-style: normal; }
.contact-section > p:not(.kicker):not(.section-index) { color: #5b6c61; font-size: 13px; line-height: 2; }
.contact-actions { margin: 40px 0 22px; display: flex; justify-content: center; gap: 12px; }
.primary-button.dark { color: white; background: var(--forest); border-color: var(--forest); }
.primary-button.dark:hover { background: #28523c; }
.resume-button { border: 1px solid var(--line); color: var(--ink); background: transparent; padding: 15px 20px; min-width: 188px; display: flex; justify-content: space-between; cursor: help; }
.contact-section > small { color: var(--moss); font-size: 10px; }

footer { min-height: 150px; border-top: 1px solid var(--line); padding: 40px 48px; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: end; }
.footer-brand { flex-wrap: wrap; width: 180px; }
.footer-brand small { width: 100%; }
footer > div { display: flex; justify-content: center; gap: 28px; font-size: 11px; }
footer p { justify-self: end; margin: 0; text-align: right; color: var(--moss); font: 9px/1.7 Arial; letter-spacing: .12em; }

.video-modal { position: fixed; z-index: 100; inset: 0; padding: 30px; display: grid; place-items: center; background: rgba(11,30,21,.9); backdrop-filter: blur(18px); }
.video-modal[hidden] { display: none; }
.video-dialog { width: min(1180px, 100%); max-height: calc(100svh - 60px); color: white; }
.video-dialog-head { display: flex; align-items: end; justify-content: space-between; margin-bottom: 16px; }
.video-dialog-head small { font: 9px/1 Arial; letter-spacing: .16em; color: #b8c9ba; }
.video-dialog-head h2 { margin: 7px 0 0; font: 400 28px/1.1 "Songti SC", serif; }
.video-dialog-head button { border: 1px solid rgba(255,255,255,.4); border-radius: 99px; padding: 9px 15px; color: white; background: transparent; cursor: pointer; }
.video-dialog video { display: block; width: 100%; max-height: calc(100svh - 140px); background: #07120c; object-fit: contain; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition-duration: .01ms !important; } }

@media (max-width: 760px) {
  .section-shell { width: calc(100% - 36px); }
  .site-header { height: 66px; padding: 0 18px; }
  .brand small, .brand i { display: none; }
  .menu-toggle { display: block; font-size: 12px; z-index: 2; }
  nav { display: none; position: fixed; inset: 0; background: var(--paper); color: var(--ink); flex-direction: column; justify-content: center; font: 400 28px/1.5 "Songti SC", serif; }
  nav.open { display: flex; }
  .hero-copy { left: 24px; right: 24px; top: 47%; }
  .eyebrow b { display: none; }
  .eyebrow { gap: 9px; font-size: 9px; }
  .hero h1 { font-size: 56px; margin-top: 22px; }
  .hero-intro { font-size: 12px; }
  .reel-status { right: 24px; bottom: 82px; }
  .hero-meta { left: 18px; right: 18px; bottom: 19px; }
  .hero-meta span:nth-child(2) { display: none; }
  .intro-section { padding: 90px 0; }
  .manifesto { margin: 40px 0 0; display: block; }
  .manifesto h2 { font-size: 42px; }
  .manifesto p { margin-top: 28px; }
  .works-section { padding-bottom: 90px; }
  .section-heading { margin-bottom: 30px; }
  .section-note { display: none; }
  .project-list { gap: 52px; }
  .project-card:nth-child(even) { width: 100%; }
  .project-image-wrap { aspect-ratio: 4/3; }
  .view-project { opacity: 1; transform: none; }
  .project-info { display: block; }
  .project-role { margin-top: 18px; flex-direction: row; }
  .lab-section { padding: 90px 0 60px; }
  .lab-grid { display: block; }
  .lab-card, .lab-card:nth-child(2) { margin: 0 0 50px; }
  .lab-card:nth-child(2) .lab-image { aspect-ratio: 4/3; }
  .capabilities { padding: 90px 0; }
  .ability-list article { grid-template-columns: 12% 1fr 5%; padding: 26px 0; }
  .ability-list h3 { margin: 0; }
  .ability-list p { grid-column: 2/4; }
  .ability-list article:hover { padding-left: 0; }
  .process-line { grid-template-columns: repeat(2,1fr); gap: 0; }
  .process-line span { padding: 16px 8px; border-bottom: 1px solid var(--line); }
  .process-line small { margin-top: 12px; }
  .about-section { padding: 90px 0; }
  .about-inner { display: block; }
  .about-portrait { margin-bottom: 64px; }
  .about-copy h2 { font-size: 45px; }
  .contact-section { padding: 90px 18px; }
  .contact-section .section-index { margin-bottom: 60px; }
  .contact-section h2 { font-size: 49px; }
  .contact-actions { flex-direction: column; align-items: center; }
  footer { padding: 36px 18px; grid-template-columns: 1fr 1fr; gap: 32px; }
  footer > div { display: none; }
  .video-modal { padding: 14px; }
  .video-dialog-head h2 { font-size: 21px; }
}