@font-face {
  font-family: "Smiley Sans Web";
  src: url("assets/fonts/smiley-sans-oblique-v2.0.1.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  --paper: #ede8e3;
  --proof: #e5e0d9;
  --ink: #171916;
  --muted: #66695f;
  --line: rgba(23, 25, 22, .22);
  --dark: #171916;
  --metal: #30342f;
  --light: #dfff00;
  --cyan: #8de9e5;
  --header: 76px;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
figure picture { display: block; height: 100%; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--light); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 12px 16px; background: var(--light); color: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 30; height: var(--header); display: flex; align-items: center;
  justify-content: space-between; padding: 0 3.2vw; border-bottom: 1px solid rgba(244,241,232,.2);
  background: rgba(23,25,22,.94); color: var(--paper); backdrop-filter: blur(12px);
}
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .04em; }
.brand-mark { width: 32px; height: 32px; fill: currentColor; }
.brand .brand-mark { color: var(--light); }
.desktop-nav { display: flex; align-items: center; gap: clamp(20px, 2.4vw, 42px); font-size: 14px; }
.desktop-nav a { position: relative; padding: 26px 0 24px; }
.desktop-nav a::after { content: ""; position: absolute; inset: auto 0 17px; height: 2px; background: var(--light); transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.menu-toggle { display: none; width: 48px; height: 48px; padding: 13px; border: 1px solid rgba(244,241,232,.35); background: transparent; color: inherit; }
.menu-toggle > span:not(.sr-only) { display: block; height: 1px; background: currentColor; margin: 6px 0; }

.menu-backdrop { position: fixed; inset: 0; z-index: 38; background: rgba(0,0,0,.45); }
.mobile-menu { position: fixed; z-index: 40; inset: 0 0 0 auto; width: min(88vw, 420px); padding: 24px; background: var(--dark); color: var(--paper); transform: translateX(100%); transition: transform .32s ease; }
.mobile-menu.is-open { transform: none; }
.mobile-menu-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 30px; border-bottom: 1px solid rgba(244,241,232,.25); font: 12px/1 monospace; letter-spacing: .14em; }
.menu-close { position: relative; width: 48px; height: 48px; border: 1px solid rgba(244,241,232,.35); background: transparent; color: inherit; }
.menu-close::before, .menu-close::after { content: ""; position: absolute; top: 23px; left: 13px; width: 20px; height: 1px; background: currentColor; }
.menu-close::before { transform: rotate(45deg); }
.menu-close::after { transform: rotate(-45deg); }
.mobile-menu > a { display: grid; grid-template-columns: 72px 1fr; align-items: center; min-height: 66px; border-bottom: 1px solid rgba(244,241,232,.2); font-size: 18px; }
.mobile-menu > a span { color: var(--light); font: 12px/1 monospace; }

.hero { position: relative; min-height: 100svh; padding-top: var(--header); display: grid; grid-template-columns: 58% 42%; grid-template-rows: 1fr 64px; overflow: clip; background: var(--proof); }
.hero-theater { position: relative; min-height: calc(100svh - var(--header) - 64px); overflow: hidden; background: var(--dark); color: var(--paper); }
.hero-theater picture { position: absolute; inset: 0; }
.hero-theater img { object-position: center; filter: saturate(.84) contrast(1.05); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(237,232,227,.78) 0%, rgba(237,232,227,.42) 48%, rgba(237,232,227,.05) 100%); }
.hero-copy { position: absolute; z-index: 2; inset: 50% 7% auto 8%; max-width: 760px; transform: translateY(-46%); color: var(--ink); }
.section-code, .section-heading > p, .application-copy > h3 + p { margin: 22px 0 24px; font: 600 12px/1.2 Consolas, monospace; letter-spacing: .14em; text-transform: uppercase; }
.hero-copy h1 { margin: 0; font-family: "Smiley Sans Web", "Microsoft YaHei UI", sans-serif; font-size: clamp(52px, 5.4vw, 92px); font-weight: 400; line-height: .98; letter-spacing: -.02em; }
.hero-copy h1 span { white-space: nowrap; }
.hero-copy > p:last-child { max-width: 510px; margin: 28px 0 0; color: rgba(23,25,22,.82); font-size: 16px; line-height: 1.85; }
.light-rail { position: absolute; z-index: 6; top: var(--header); bottom: 0; left: 58%; width: 2px; background: rgba(223,255,0,.2); pointer-events: none; }
.light-rail i { display: block; width: 2px; height: var(--light-progress, 24%); background: var(--light); box-shadow: 0 0 22px rgba(223,255,0,.8), 0 0 44px rgba(141,233,229,.25); }
.light-rail b { position: absolute; top: calc(var(--light-progress, 24%) - 6px); left: -5px; width: 12px; height: 12px; border: 2px solid var(--light); background: var(--dark); }
.hero-index { display: flex; min-width: 0; flex-direction: column; justify-content: space-between; padding: clamp(34px,4vw,68px); background: var(--paper); }
.index-head span { display: block; margin-top: 12px; color: var(--muted); font: 11px/1.2 Consolas, monospace; letter-spacing: .13em; }
.index-head strong { display: block; font-family: "Smiley Sans Web", "Microsoft YaHei UI", sans-serif; font-size: clamp(26px,2.2vw,38px); font-weight: 400; }
.hero-index ol { list-style: none; margin: 30px 0; padding: 0; border-top: 1px solid var(--line); }
.hero-index li { border-bottom: 1px solid var(--line); }
.hero-index li a { display: grid; grid-template-columns: 54px 1fr auto; align-items: center; min-height: 76px; gap: 12px; }
.hero-index li b { color: var(--muted); font: 12px/1 Consolas, monospace; }
.hero-index li span { font-size: clamp(17px,1.6vw,25px); font-weight: 700; }
.hero-index li i { color: var(--muted); font-size: 12px; font-style: normal; }
.hero-index li a:hover span, .hero-index li a:focus-visible span { color: #596700; }
.button, .submit-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 36px; width: fit-content; min-height: 52px; padding: 14px 18px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); font-weight: 700; }
.hero-index .button { border-color: var(--light); background: var(--light); color: var(--ink); }
.button::after, .submit-button::after, .application-copy a::after, .record-copy a::after { content: ""; display: inline-block; flex: 0 0 auto; width: 8px; height: 8px; margin-left: 12px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.record-copy a::after { transform: rotate(0deg); }
.button:hover, .button:focus-visible, .submit-button:hover, .submit-button:focus-visible { background: var(--light); color: var(--ink); }
.hero-index .button:hover, .hero-index .button:focus-visible { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.hero-foot { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; padding: 0 3.2vw; border-top: 1px solid var(--line); background: var(--proof); font-size: 13px; letter-spacing: .08em; }
.down-mark { width: 10px; height: 10px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: rotate(45deg) translateY(-3px); }

.applications { position: relative; background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1fr 2.2fr 1fr; grid-template-areas: "code title note"; gap: 4vw; padding: 120px 7vw 86px; border-bottom: 1px solid var(--line); }
.section-heading h2 { grid-area: title; }
.section-heading > p { grid-area: code; align-self: start; margin-top: 0; }
.section-heading > span { grid-area: note; }
.section-heading h2, .capability h2, .record h2, .contact h2 { margin: 0; font-family: "Smiley Sans Web", "Microsoft YaHei UI", sans-serif; font-size: clamp(48px, 5.2vw, 86px); font-weight: 400; line-height: 1.03; letter-spacing: -.02em; }
.section-heading > span { align-self: end; color: var(--muted); font-size: 14px; line-height: 1.8; }
.application-row { position: relative; display: grid; grid-template-columns: 9vw minmax(260px, .75fr) 1.55fr; min-height: 600px; border-bottom: 1px solid var(--line); }
.application-number { position: relative; display: flex; align-items: flex-start; justify-content: center; padding-top: 62px; border-right: 1px solid var(--line); color: var(--muted); font: 12px/1 Consolas, monospace; }
.application-number i { position: absolute; z-index: 3; top: 68px; right: -7px; width: 13px; height: 13px; border: 2px solid var(--ink); background: var(--paper); transition: background .25s ease, box-shadow .25s ease; }
.application-row.is-active .application-number i { background: var(--light); box-shadow: 0 0 0 7px rgba(223,255,0,.2); }
.application-copy { display: flex; flex-direction: column; justify-content: center; padding: 8vw 5vw; }
.application-copy > p:first-child { color: var(--muted); }
.application-copy h3 { margin: 0; font-family: "Smiley Sans Web", "Microsoft YaHei UI", sans-serif; font-size: clamp(44px,4.6vw,76px); font-weight: 400; line-height: 1; letter-spacing: -.02em; }
.application-body { margin: 32px 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.application-copy a { display: inline-flex; align-items: center; width: fit-content; min-height: 44px; border-bottom: 1px solid; font-weight: 700; }
.application-media { position: relative; min-height: 600px; margin: 0; overflow: hidden; background: #d9d8cf; }
.application-media::after, .capability-media::after, .record-media::after { content: ""; position: absolute; inset: 0; border: 0 solid var(--light); transition: border-width .6s ease; pointer-events: none; }
.application-row.is-active .application-media::after { border-left-width: 4px; }
figcaption { position: absolute; right: 0; bottom: 0; padding: 10px 14px; background: var(--paper); color: var(--ink); font: 11px/1.2 Consolas, monospace; letter-spacing: .08em; }
.application-row-reverse { grid-template-columns: 9vw 1.55fr minmax(260px, .75fr); }
.application-row-reverse .application-media { grid-column: 2; grid-row: 1; }
.application-row-reverse .application-copy { grid-column: 3; grid-row: 1; }
.application-row-reverse .application-number { grid-column: 1; grid-row: 1; }

.capability { display: grid; grid-template-columns: 1fr 1.3fr; grid-template-rows: auto auto; background: var(--dark); color: var(--paper); }
.capability-copy { padding: clamp(70px,8vw,140px) 7vw; }
.capability-copy > p:not(.section-code) { max-width: 560px; margin: 32px 0 54px; color: rgba(244,241,232,.7); line-height: 1.9; }
.service-line { display: grid; grid-template-columns: repeat(4,1fr); list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(244,241,232,.25); }
.service-line li { display: grid; gap: 16px; padding: 22px 8px 22px 0; border-right: 1px solid rgba(244,241,232,.25); font-weight: 700; }
.service-line li span { color: var(--light); font: 11px/1 Consolas, monospace; }
.capability-media { position: relative; min-height: 680px; margin: 0; overflow: hidden; }
.capability-note { grid-column: 1 / -1; display: grid; grid-template-columns: 1.2fr .7fr 1.4fr; grid-template-areas: "title code note"; gap: 3vw; align-items: center; padding: 34px 7vw; border-top: 1px solid rgba(244,241,232,.25); }
.capability-note > span { grid-area: code; color: var(--light); font: 11px/1 Consolas, monospace; letter-spacing: .12em; }
.capability-note strong { grid-area: title; font-family: "Smiley Sans Web", "Microsoft YaHei UI", sans-serif; font-size: 28px; font-weight: 400; }
.capability-note p { grid-area: note; margin: 0; color: rgba(244,241,232,.68); line-height: 1.7; }

.record { display: grid; grid-template-columns: 1.05fr .95fr; min-height: 760px; background: var(--proof); }
.record-media { position: relative; min-height: 760px; margin: 0; overflow: hidden; }
.record-copy { padding: clamp(70px,8vw,130px) 7vw; }
.record-copy ol { list-style: none; margin: 64px 0 0; padding: 0; border-top: 1px solid var(--line); }
.record-copy li { display: grid; grid-template-columns: 120px 1fr; gap: 28px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.record-copy time { color: #596700; font: 600 12px/1.5 Consolas, monospace; }
.record-copy h3 { margin: 0 0 10px; font-size: 20px; }
.record-copy p { margin: 0 0 14px; color: var(--muted); line-height: 1.75; }
.record-copy a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; font-weight: 700; border-bottom: 1px solid; }

.contact { display: grid; grid-template-columns: 42% 58%; grid-template-rows: minmax(460px, 58vh) auto; position: relative; background: var(--paper); }
.contact-media { grid-column: 1 / -1; grid-row: 1; margin: 0; position: relative; overflow: hidden; background: var(--dark); }
.contact-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(23,25,22,.82), rgba(23,25,22,.12)); }
.contact-intro { grid-column: 1; grid-row: 1 / 3; z-index: 2; padding: clamp(70px,8vw,130px) 5vw 80px 7vw; background: rgba(23,25,22,.93); color: var(--paper); }
.contact-intro > p:not(.section-code) { margin: 30px 0; color: rgba(244,241,232,.72); line-height: 1.9; }
.contact-intro address { display: grid; gap: 12px; margin-top: 54px; font-style: normal; line-height: 1.8; }
.contact-intro address span { color: var(--light); font: 11px/1 Consolas, monospace; letter-spacing: .1em; }
.inquiry-form { grid-column: 2; grid-row: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding: 60px 7vw; background: var(--paper); }
.field { padding: 0 28px 26px 0; }
.field:nth-child(even) { padding-right: 0; padding-left: 28px; border-left: 1px solid var(--line); }
.field-wide { grid-column: 1 / -1; padding-left: 0 !important; border-left: 0 !important; }
.field label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 12px; }
.field input, .field select, .field textarea { width: 100%; min-height: 50px; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0; padding: 10px 0; background: transparent; color: var(--ink); }
.field textarea { resize: vertical; }
.submit-button { grid-column: 1; cursor: pointer; }
.form-status { grid-column: 1 / -1; margin: 20px 0 0; padding: 18px; border-top: 1px solid var(--ink); background: #e2ddd5; line-height: 1.6; }

.site-footer { display: grid; grid-template-columns: 1.2fr 1fr auto; align-items: center; gap: 40px; padding: 44px 3.2vw; border-top: 1px solid rgba(244,241,232,.18); background: var(--dark); color: var(--paper); }
.site-footer > div { display: grid; gap: 8px; color: rgba(244,241,232,.62); font-size: 12px; }
.site-footer p { margin: 0; color: rgba(244,241,232,.58); font-size: 12px; }

.reveal-media img { transform: scale(1.025); filter: saturate(.86); transition: transform .9s cubic-bezier(.2,.7,.2,1), filter .9s ease; }
.reveal-media.is-revealed img { transform: none; filter: saturate(1); }

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .hero { grid-template-columns: 62% 38%; }
  .light-rail { left: 62%; }
  .hero-index { padding: 36px 30px; }
  .hero-index li a { grid-template-columns: 40px 1fr; }
  .hero-index li i { display: none; }
  .section-heading { grid-template-columns: .7fr 2fr; }
  .section-heading { grid-template-areas: "code title" ". note"; }
  .section-heading > span { grid-column: 2; }
  .application-row { grid-template-columns: 72px minmax(250px,.8fr) 1.2fr; }
  .application-row-reverse { grid-template-columns: 72px 1.2fr minmax(250px,.8fr); }
  .application-copy { padding: 70px 40px; }
  .capability { grid-template-columns: 1fr 1fr; }
  .contact { grid-template-columns: 46% 54%; }
}

@media (max-width: 760px) {
  :root { --header: 66px; }
  .site-header { padding: 0 16px; }
  .brand { max-width: calc(100% - 64px); font-size: 14px; }
  .brand, .footer-brand { min-height: 44px; }
  .brand-mark { flex: 0 0 auto; }
  .hero { display: block; min-height: auto; padding-top: var(--header); }
  .hero-theater { min-height: 70svh; }
  .hero-copy { inset: 50% 22px auto; transform: translateY(-43%); }
  .hero-copy h1 { font-size: clamp(39px,11vw,44px); }
  .hero-copy > p:last-child { font-size: 14px; }
  .light-rail { position: fixed; z-index: 20; top: var(--header); bottom: 0; left: 18px; opacity: .85; }
  .hero-index { padding: 44px 24px 56px 38px; }
  .hero-index li a { min-height: 70px; grid-template-columns: 46px 1fr auto; }
  .hero-index li i { display: block; }
  .hero-foot { min-height: 58px; padding-left: 38px; }
  .section-heading { display: block; padding: 86px 24px 60px 38px; }
  .section-heading h2 { font-size: 45px; }
  .section-heading > span { display: block; margin-top: 28px; }
  .application-row, .application-row-reverse { display: grid; grid-template-columns: 38px 1fr; min-height: 0; }
  .application-number, .application-row-reverse .application-number { grid-column: 1; grid-row: 1 / 3; padding-top: 44px; justify-content: flex-start; border-right: 1px solid var(--line); }
  .application-number span { transform: rotate(-90deg); }
  .application-number i { top: 48px; }
  .application-copy, .application-row-reverse .application-copy { grid-column: 2; grid-row: 1; padding: 58px 24px; }
  .application-media, .application-row-reverse .application-media { grid-column: 2; grid-row: 2; min-height: 340px; }
  .capability { display: block; padding-left: 18px; }
  .capability-copy { padding: 80px 24px 64px; }
  .capability h2, .record h2, .contact h2 { font-size: 45px; }
  .service-line { grid-template-columns: 1fr 1fr; }
  .capability-media { min-height: 480px; }
  .capability-note { display: block; padding: 34px 24px 44px; }
  .capability-note strong { display: block; margin: 0 0 14px; }
  .capability-note > span { display: block; margin: 0 0 16px; }
  .record { display: block; padding-left: 18px; }
  .record-media { min-height: 420px; }
  .record-copy { padding: 80px 24px; }
  .record-copy li { grid-template-columns: 1fr; gap: 12px; }
  .contact { display: block; padding-left: 18px; background: var(--dark); }
  .contact-media { height: 300px; }
  .contact-intro { padding: 68px 24px; }
  .inquiry-form { display: block; padding: 58px 24px; }
  .field, .field:nth-child(even) { padding: 0 0 26px; border-left: 0; }
  .submit-button { width: 100%; }
  .site-footer { display: block; padding: 44px 24px 44px 38px; }
  .site-footer > div { margin: 28px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal-media img { transform: none; filter: none; }
  .light-rail i { height: 100%; }
  .light-rail b { top: calc(100% - 6px); }
}