:root {
  --bg: #0f0b08;
  --bg-2: #17110c;
  --paper: #efe4d0;
  --ink: #2a1a0e;
  --text: #efe6d8;
  --text-2: #bfae95;
  --muted: #9a8a74;
  --accent: #d6a868;
  --accent-2: #f0cf96;
  --line: rgba(239, 230, 216, .12);
  --radius: 18px;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "Source Han Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(16px, 5vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--accent-2); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.3; margin: 0; letter-spacing: .04em; }
p { margin: 0 0 1em; }

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--paper); color: var(--ink); padding: 8px 14px; border-radius: 8px;
}
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 780px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.eyebrow {
  font-size: 13px; letter-spacing: .3em; color: var(--accent);
  margin-bottom: 14px; text-transform: uppercase;
}

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px var(--gutter);
  background: rgba(15, 11, 8, .72);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; letter-spacing: .06em; }
.brand-mark { width: 26px; height: 26px; }
.nav ul { display: flex; gap: clamp(12px, 3vw, 32px); list-style: none; margin: 0; padding: 0; }
.nav a:not(.brand) { color: var(--text-2); text-decoration: none; font-size: 15px; }
.nav a:not(.brand):hover { color: var(--text); }
.nav nav { display: flex; align-items: center; gap: clamp(12px, 3vw, 32px); }
.nav a.lang-switch {
  color: var(--text); font-size: 13px; letter-spacing: .06em; line-height: 1;
  padding: 6px 11px; border: 1px solid rgba(239,230,216,.28); border-radius: 999px; white-space: nowrap;
}
.nav a.lang-switch:hover { border-color: var(--text); }

/* Hero */
.hero { background: #000; }
.hero-media { position: relative; width: 100%; max-height: 100svh; aspect-ratio: 16 / 9; background: #000; margin: 0 auto; }
.hero-video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.play-toggle {
  position: absolute; right: clamp(12px, 2vw, 28px); bottom: clamp(12px, 2vw, 28px);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.22);
  background: rgba(0,0,0,.45); color: #f3ead9; font: 500 13px var(--sans); cursor: pointer;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.play-toggle:hover { background: rgba(0,0,0,.65); }
.play-icon { width: 10px; height: 12px; position: relative; }
.play-icon::before, .play-icon::after { content: ""; position: absolute; top: 0; width: 3px; height: 12px; background: currentColor; border-radius: 1px; }
.play-icon::before { left: 1px; } .play-icon::after { right: 1px; }
.is-paused .play-icon::before { left: 1px; width: 0; height: 0; background: none; border-style: solid; border-width: 6px 0 6px 10px; border-color: transparent transparent transparent currentColor; border-radius: 0; }
.is-paused .play-icon::after { display: none; }
.play-toggle.prominent { right: 50%; bottom: 50%; transform: translate(50%, 50%); padding: 14px 22px; font-size: 16px; }

.hero-copy {
  text-align: center;
  padding: clamp(56px, 9vw, 120px) var(--gutter) clamp(64px, 10vw, 128px);
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(214,168,104,.18), transparent 70%),
    linear-gradient(#000, var(--bg));
}
.hero-copy h1 { font-size: clamp(44px, 8vw, 96px); letter-spacing: .12em; text-shadow: 0.06em 0.08em 0.14em rgba(0,0,0,.55); }
.lead { font-family: var(--serif); font-size: clamp(18px, 2.4vw, 26px); color: var(--text); margin: 18px 0 8px; letter-spacing: .12em; }
.kicker { color: var(--text-2); letter-spacing: .18em; font-size: clamp(13px, 1.5vw, 15px); }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 999px; text-decoration: none;
  background: var(--paper); color: var(--ink); font-weight: 600; letter-spacing: .08em;
}
.btn:hover { background: #fff3dd; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid rgba(239,230,216,.35); }
.btn.ghost:hover { border-color: var(--text); }

/* Sections */
section { position: relative; }
.idea, .features, .compat, .get, .tribute { padding: clamp(72px, 11vw, 150px) 0; }
h2 { font-size: clamp(28px, 4.2vw, 46px); margin-bottom: 26px; }
h3 { font-size: clamp(21px, 2.4vw, 27px); margin-bottom: 12px; }

.idea {
  background:
    radial-gradient(70% 90% at 20% 0%, rgba(214,168,104,.14), transparent 70%),
    var(--bg);
}
.idea p { color: var(--text-2); font-size: clamp(16px, 1.8vw, 19px); }
.day { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.day li { border-top: 1px solid var(--line); padding-top: 14px; display: flex; flex-direction: column; }
.day-t { font-family: var(--serif); font-size: clamp(18px, 2vw, 22px); color: var(--text); }
.day-d { color: var(--muted); font-size: 15px; }

.features { background: var(--bg-2); }
.feature { display: grid; grid-template-columns: 1.55fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; margin-top: clamp(40px, 6vw, 72px); }
.feature.reverse { grid-template-columns: 1fr 1.55fr; }
.feature.reverse .feature-media { order: 2; }
.feature-media { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 0 0 1px var(--line); background: #000; }
.feature-media img { width: 100%; aspect-ratio: 12 / 5; object-fit: cover; }
.feature-copy p { color: var(--text-2); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: clamp(40px, 6vw, 72px); }
.card {
  padding: clamp(24px, 3vw, 36px); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(214,168,104,.10), rgba(214,168,104,.02) 60%);
  border: 1px solid var(--line);
}
.card p { color: var(--text-2); margin: 0; }

.compat { background: var(--bg); }
.specs { margin: 0 0 28px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; }
.specs div { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; color: var(--text); font-weight: 600; text-align: right; }
.note { color: var(--text-2); font-size: 15px; }

.get {
  background:
    radial-gradient(50% 80% at 50% 100%, rgba(214,168,104,.16), transparent 70%),
    var(--bg-2);
}

.tribute { background: #000; padding: 0; }
.tribute-media { margin: 0; position: relative; }
.tribute-media img { width: 100%; min-height: 320px; aspect-ratio: 12 / 5; object-fit: cover; }
.tribute-copy {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 24px var(--gutter);
  background: linear-gradient(90deg, rgba(0,0,0,.55), rgba(0,0,0,.15) 45%, rgba(0,0,0,.55));
}
.tribute-copy h2 { font-size: clamp(22px, 3.4vw, 40px); margin-bottom: 12px; color: #f6ecdc; text-shadow: 0 2px 18px rgba(0,0,0,.6); }
.tribute-copy p { margin: 0; color: #e3d3b8; font-family: var(--serif); letter-spacing: .12em; font-size: clamp(14px, 1.6vw, 18px); text-shadow: 0 1px 12px rgba(0,0,0,.7); }

.footer { border-top: 1px solid var(--line); padding: 36px 0 calc(36px + env(safe-area-inset-bottom)); color: var(--muted); font-size: 13px; background: var(--bg); }
.footer p { margin: 0 0 8px; }
.legal { max-width: 820px; line-height: 1.7; }

@media (max-width: 820px) {
  .feature, .feature.reverse { grid-template-columns: 1fr; }
  .feature.reverse .feature-media { order: 0; }
  .grid2 { grid-template-columns: 1fr; }
  .specs { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .nav ul { gap: 14px; }
  .nav a:not(.brand) { font-size: 14px; }
  .brand span { display: none; }
  .day { grid-template-columns: 1fr; }
  .play-toggle { padding: 6px 12px; font-size: 12px; }
}
@media (min-width: 2200px) {
  body { font-size: 19px; }
  .wrap { max-width: 1480px; }
  .narrow { max-width: 960px; }
}

/* English page */
.caption-note { margin: 18px 0 0; font-size: 12px; color: var(--muted); letter-spacing: .04em; }
:lang(en) {
  --serif: "EB Garamond", "Noto Serif SC", Georgia, "Times New Roman", serif;
}
html:lang(en) body { line-height: 1.7; }
:lang(en) h1, :lang(en) h2, :lang(en) h3 { letter-spacing: .005em; font-weight: 500; }
:lang(en) .hero-copy h1 { letter-spacing: .02em; }
:lang(en) .lead { letter-spacing: .01em; font-style: italic; }
:lang(en) .kicker { letter-spacing: .08em; }
:lang(en) .btn { letter-spacing: .02em; }
:lang(en) .eyebrow { letter-spacing: .18em; }
:lang(en) .brand { letter-spacing: .02em; }
:lang(en) .tribute-copy p { letter-spacing: .01em; font-style: italic; }
:lang(en) .day-t { letter-spacing: .01em; }
@media (max-width: 480px) {
  html:lang(en) .nav ul { gap: 10px; }
  html:lang(en) .nav a:not(.brand) { font-size: 13px; }
}