:root {
  color-scheme: dark;
  --bg: #0a0c0e;
  --bg-soft: #101316;
  --panel: #14181c;
  --panel-high: #1a1e22;
  --text: #f4f0e7;
  --muted: #aaa69d;
  --faint: #77766f;
  --gold: #d7ad58;
  --gold-soft: #efd18c;
  --line: rgba(215, 173, 88, 0.2);
  --white-line: rgba(255, 255, 255, 0.08);
  --shell: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image: radial-gradient(rgba(255,255,255,0.18) 0.45px, transparent 0.55px);
  background-size: 5px 5px;
  z-index: 20;
}
img { max-width: 100%; }
a { color: inherit; }
.shell { width: min(var(--shell), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; padding: 10px 16px; background: var(--gold); color: #111; z-index: 99; border-radius: 8px; }
.skip-link:focus { top: 16px; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 10; }
.nav { height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--white-line); }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand img { width: 42px; height: 42px; border-radius: 13px; }
.brand span { display: flex; align-items: baseline; gap: 7px; }
.brand strong { font-size: 17px; letter-spacing: 0.08em; }
.brand small { color: var(--muted); font-size: 12px; letter-spacing: 0.08em; }
.nav-links { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; text-decoration: none; transition: color 160ms ease; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.nav-download { padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--gold-soft); font-size: 13px; text-decoration: none; }

.hero { min-height: 860px; display: grid; grid-template-columns: 0.93fr 1.07fr; gap: 56px; align-items: center; padding-top: 108px; overflow: hidden; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 10px; }
.kicker { margin: 0 0 20px; color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.kicker span { display: inline-block; width: 22px; height: 1px; margin: 0 9px 3px 0; background: currentColor; }
.hero h1 { margin: 0; font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif; font-size: clamp(58px, 6.3vw, 94px); font-weight: 500; letter-spacing: -0.055em; line-height: 1.08; }
.hero h1 em { color: var(--gold-soft); font-style: normal; }
.hero-lead { max-width: 610px; margin: 30px 0 0; color: var(--muted); font-size: 19px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 35px; }
.app-store-button { min-width: 178px; min-height: 58px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 8px 19px; border-radius: 12px; background: var(--text); color: #0a0c0e; text-decoration: none; transition: transform 160ms ease, box-shadow 160ms ease; }
.app-store-button:hover, .app-store-button:focus-visible { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(215,173,88,0.12); }
.app-store-button span:last-child { display: flex; flex-direction: column; line-height: 1.05; }
.app-store-button small { font-size: 10px; }
.app-store-button strong { margin-top: 4px; font-size: 20px; letter-spacing: -0.03em; }
.apple-mark { width: 24px; height: 28px; display: grid; place-items: center; font-size: 22px; }
.text-link { color: var(--muted); font-size: 14px; text-decoration: none; }
.text-link span { color: var(--gold); margin-left: 5px; }
.trust-list { display: flex; flex-wrap: wrap; gap: 18px; margin: 31px 0 0; padding: 0; list-style: none; color: var(--faint); font-size: 12px; }
.trust-list li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 8px 2px 0; border: 1px solid var(--gold); border-radius: 50%; }

.hero-stage { position: relative; min-height: 680px; display: grid; place-items: center; isolation: isolate; }
.hero-stage::before { content: ""; position: absolute; width: 670px; height: 670px; border-radius: 50%; background: radial-gradient(circle, rgba(215,173,88,0.16), rgba(215,173,88,0.03) 43%, transparent 68%); z-index: -3; }
.sound-ring { position: absolute; border: 1px solid rgba(215,173,88,0.14); border-radius: 50%; z-index: -2; }
.ring-one { width: 420px; height: 420px; }
.ring-two { width: 540px; height: 540px; }
.ring-three { width: 660px; height: 660px; opacity: 0.55; }
.phone-frame { width: 300px; padding: 9px; background: #090b0c; border: 1px solid rgba(255,255,255,0.17); border-radius: 43px; box-shadow: 0 45px 90px rgba(0,0,0,0.6), 0 0 90px rgba(215,173,88,0.1); transform: rotate(3deg); }
.phone-frame img { display: block; border-radius: 34px; }
.icon-orbit { position: absolute; right: 5%; top: 14%; width: 104px; padding: 7px; border-radius: 27px; background: rgba(17,20,23,0.85); border: 1px solid var(--line); box-shadow: 0 22px 50px rgba(0,0,0,0.45); transform: rotate(7deg); }
.icon-orbit img { display: block; border-radius: 22px; }
.floating-note { position: absolute; min-width: 146px; padding: 14px 17px; background: rgba(19,22,25,0.86); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 20px 45px rgba(0,0,0,0.36); backdrop-filter: blur(16px); }
.floating-note span { display: block; color: var(--faint); font-size: 11px; letter-spacing: 0.09em; }
.floating-note strong { display: block; margin-top: 3px; color: var(--gold-soft); font-family: "Songti SC", serif; font-size: 20px; font-weight: 500; }
.note-top { left: 1%; top: 26%; }
.note-bottom { right: 0; bottom: 19%; }

.manifesto { border-block: 1px solid var(--line); background: #0d1012; }
.manifesto-grid { min-height: 280px; display: grid; grid-template-columns: 0.65fr 1.35fr; align-items: center; gap: 80px; }
.section-label { color: var(--faint); font-size: 14px; letter-spacing: 0.08em; }
blockquote { margin: 0; padding-left: 60px; border-left: 1px solid var(--line); color: var(--text); font-family: "Songti SC", serif; font-size: clamp(30px, 4vw, 48px); font-weight: 400; line-height: 1.55; }

.section { padding-block: 128px; }
.section-heading { display: grid; grid-template-columns: 1fr 0.75fr; align-items: end; gap: 80px; margin-bottom: 58px; }
.section-heading h2, .privacy-copy h2, .download-card h2 { margin: 0; font-family: "Songti SC", serif; font-size: clamp(42px, 5vw, 66px); font-weight: 500; letter-spacing: -0.04em; line-height: 1.2; }
.section-heading > p { margin: 0 0 8px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature-card { min-height: 360px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; padding: 30px; border: 1px solid var(--white-line); border-radius: 24px; background: linear-gradient(145deg, #15191d, #101316); }
.feature-primary { grid-row: span 2; min-height: 738px; background: radial-gradient(circle at 50% 62%, rgba(215,173,88,0.16), transparent 35%), linear-gradient(145deg, #161a1e, #0f1215); }
.feature-index { margin: 0; color: var(--gold); font: 12px/1 monospace; letter-spacing: 0.15em; }
.feature-copy { max-width: 440px; position: relative; z-index: 2; }
.feature-copy h3 { margin: 0 0 10px; color: var(--gold-soft); font-family: "Songti SC", serif; font-size: 31px; font-weight: 500; }
.feature-copy p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.woodfish-symbol { position: absolute; left: 50%; top: 52%; width: 280px; height: 280px; transform: translate(-50%, -50%); border: 1px solid rgba(215,173,88,0.34); border-radius: 50%; box-shadow: 0 0 0 44px rgba(215,173,88,0.04), 0 0 0 88px rgba(215,173,88,0.025); }
.woodfish-symbol::before, .woodfish-symbol::after, .woodfish-symbol span { content: ""; position: absolute; border-radius: 50%; inset: 20%; border: 10px solid var(--gold); opacity: 0.82; }
.woodfish-symbol::after { inset: 38%; border-width: 4px; }
.woodfish-symbol span { inset: 47%; border: 0; background: var(--gold-soft); }
.mini-metric { margin-top: 45px; padding: 17px; border: 1px solid var(--white-line); border-radius: 15px; background: rgba(255,255,255,0.02); }
.mini-metric span { color: var(--faint); font-size: 12px; }
.mini-metric strong { float: right; color: var(--gold-soft); font-size: 13px; }
.mini-metric i { display: block; height: 4px; margin-top: 14px; background: rgba(255,255,255,0.08); border-radius: 99px; overflow: hidden; }
.mini-metric b { display: block; width: 60%; height: 100%; background: var(--gold); }
.waveform { height: 64px; display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 35px; }
.waveform i { width: 3px; height: 24%; background: var(--gold); border-radius: 5px; }
.waveform i:nth-child(2), .waveform i:nth-child(8) { height: 42%; opacity: .7; }
.waveform i:nth-child(3), .waveform i:nth-child(7) { height: 72%; opacity: .8; }
.waveform i:nth-child(4), .waveform i:nth-child(6) { height: 96%; }
.waveform i:nth-child(5) { height: 58%; opacity: .85; }

.preview-section { border-block: 1px solid var(--line); background: #0d1012; overflow: hidden; }
.screenshot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; align-items: start; }
.screenshot-grid figure { margin: 0; }
.screenshot-grid figure:nth-child(even) { margin-top: 58px; }
.screenshot-grid figure > div { padding: 7px; border: 1px solid var(--white-line); border-radius: 27px; background: #080a0b; box-shadow: 0 24px 60px rgba(0,0,0,0.34); }
.screenshot-grid img { display: block; width: 100%; border-radius: 21px; }
.screenshot-grid figcaption { display: flex; justify-content: space-between; gap: 8px; margin-top: 15px; }
.screenshot-grid strong { color: var(--gold-soft); font-size: 14px; }
.screenshot-grid span { color: var(--faint); font-size: 11px; }

.privacy-callout { min-height: 620px; display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 100px; }
.privacy-mark { position: relative; width: min(360px, 80vw); aspect-ratio: 1; display: grid; place-items: center; margin: auto; border: 1px solid var(--line); border-radius: 50%; box-shadow: 0 0 0 50px rgba(215,173,88,0.025), 0 0 0 100px rgba(215,173,88,0.015); isolation: isolate; }
.privacy-mark::before { content: ""; position: absolute; inset: 12%; border: 1px solid rgba(215,173,88,0.14); border-radius: 50%; background: radial-gradient(circle, rgba(215,173,88,0.08), transparent 66%); z-index: -1; }
.privacy-device { position: relative; width: clamp(88px, 39%, 142px); aspect-ratio: .62; display: grid; place-items: center; transform: translateY(-7%); border: 2px solid var(--gold); border-radius: 28px; background: linear-gradient(155deg, rgba(215,173,88,0.09), rgba(255,255,255,0.015)); box-shadow: inset 0 0 0 5px rgba(10,12,14,0.72), 0 22px 60px rgba(0,0,0,0.34); }
.privacy-device::before { content: ""; position: absolute; top: 11px; left: 50%; width: 31%; height: 3px; transform: translateX(-50%); border-radius: 99px; background: rgba(239,209,140,0.56); }
.privacy-device::after { content: ""; position: absolute; bottom: 10px; left: 50%; width: 25%; height: 3px; transform: translateX(-50%); border-radius: 99px; background: rgba(239,209,140,0.44); }
.privacy-heart { width: 48%; overflow: visible; }
.privacy-heart path { fill: rgba(215,173,88,0.12); stroke: var(--gold-soft); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.privacy-lock { position: absolute; right: -18px; bottom: 26px; width: clamp(40px, 34%, 50px); aspect-ratio: 1; display: grid; place-items: center; border: 4px solid var(--bg); border-radius: 50%; background: var(--gold-soft); box-shadow: 0 12px 30px rgba(0,0,0,0.42); }
.privacy-lock svg { width: 62%; }
.privacy-lock path, .privacy-lock rect, .privacy-lock circle { fill: none; stroke: #111416; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.privacy-lock circle { fill: #111416; stroke: none; }
.privacy-mark-caption { position: absolute; bottom: 25px; color: var(--gold-soft); font-size: 12px; letter-spacing: .08em; }
.privacy-copy > p:not(.kicker) { max-width: 660px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.privacy-links { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 28px; }
.privacy-links a { color: var(--gold-soft); font-size: 14px; text-decoration: none; }
.privacy-links span { margin-left: 7px; }

.download-section { padding: 0 0 100px; }
.download-card { min-height: 220px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 34px; padding: 38px 48px; border: 1px solid var(--line); border-radius: 28px; background: radial-gradient(circle at 80% 50%, rgba(215,173,88,0.12), transparent 32%), #111417; }
.download-card > img { width: 105px; border-radius: 25px; }
.download-card h2 { font-size: 44px; }
.download-card p:not(.kicker) { margin: 8px 0 0; color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); padding: 54px 0 26px; background: #080a0b; }
.footer-grid { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; }
.footer-grid > p { margin: 0; color: var(--faint); font-family: "Songti SC", serif; text-align: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: var(--muted); font-size: 12px; text-decoration: none; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--white-line); color: #545651; font-size: 11px; letter-spacing: .08em; }
.footer-bottom .icp-link { color: #74766f; text-decoration: none; transition: color 160ms ease; }
.footer-bottom .icp-link:hover, .footer-bottom .icp-link:focus-visible { color: var(--gold-soft); }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 160px; padding-bottom: 80px; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions, .trust-list { justify-content: center; }
  .hero-stage { min-height: 640px; }
  .manifesto-grid, .section-heading, .privacy-callout { grid-template-columns: 1fr; }
  .manifesto-grid { padding-block: 70px; gap: 35px; }
  blockquote { padding-left: 30px; }
  .section-heading { gap: 22px; }
  .privacy-callout { gap: 90px; text-align: center; }
  .privacy-copy > p:not(.kicker) { margin-inline: auto; }
  .privacy-links { justify-content: center; }
  .download-card { grid-template-columns: auto 1fr; }
  .download-card .app-store-button { grid-column: 2; justify-self: start; }
}

@media (max-width: 700px) {
  .shell { width: min(100% - 28px, var(--shell)); }
  .nav { height: 74px; }
  .brand span { display: block; line-height: 1.15; }
  .brand small { display: block; margin-top: 2px; }
  .nav-download { padding: 8px 11px; font-size: 11px; }
  .hero { padding-top: 125px; gap: 18px; }
  .hero h1 { font-size: clamp(52px, 16vw, 72px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .trust-list { gap: 9px 14px; }
  .hero-stage { min-height: 540px; transform: scale(.88); margin: -30px -25px; }
  .phone-frame { width: 270px; }
  .icon-orbit { right: 2%; width: 82px; }
  .note-top { left: -2%; }
  .note-bottom { right: -2%; }
  .manifesto-grid { min-height: 0; }
  blockquote { font-size: 29px; }
  .section { padding-block: 90px; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2, .privacy-copy h2 { font-size: 44px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-primary { min-height: 590px; grid-row: auto; }
  .woodfish-symbol { width: 220px; height: 220px; }
  .screenshot-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 12px; }
  .screenshot-grid figure:nth-child(even) { margin-top: 30px; }
  .screenshot-grid figcaption { display: block; }
  .screenshot-grid span { display: block; margin-top: 2px; }
  .privacy-callout { padding-top: 110px; }
  .privacy-mark { width: 220px; }
  .download-card { grid-template-columns: 1fr; text-align: center; padding: 35px 24px; }
  .download-card > img { margin: auto; }
  .download-card .app-store-button { grid-column: auto; justify-self: center; }
  .download-card h2 { font-size: 38px; }
  .footer-grid { grid-template-columns: 1fr; justify-items: center; }
  .footer-links { justify-content: center; }
  .footer-bottom { flex-direction: column; margin-top: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}