:root {
  color-scheme: light;
  --ink: #1c1c1a;
  --muted: #66655f;
  --orange: #f1682c;
  --orange-dark: #cc4c17;
  --warm: #f7f4ed;
  --line: rgba(28, 28, 26, 0.13);
  --shadow: 0 24px 64px rgba(56, 36, 20, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--warm);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
a { color: inherit; }
.shell { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 5; padding: .65rem 1rem; background: white; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(247, 244, 237, .92); backdrop-filter: blur(12px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.wordmark { color: var(--orange); font-size: 1.8rem; font-weight: 800; letter-spacing: -.09em; text-decoration: none; }
nav { display: flex; gap: 1.5rem; }
nav a, .site-footer a { color: var(--muted); font-size: .94rem; text-decoration: none; }
nav a:hover, .site-footer a:hover, .legal-page a { color: var(--orange-dark); text-decoration: underline; }
.hero { overflow: hidden; padding: clamp(4.5rem, 10vw, 8.5rem) 0 clamp(4rem, 8vw, 7rem); background: radial-gradient(circle at 76% 35%, #ffd7bd 0, transparent 27%), linear-gradient(135deg, #f9f4ea, #f6ede3); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 4rem; }
.eyebrow { margin: 0 0 1rem; color: var(--orange-dark); font-size: .76rem; font-weight: 800; letter-spacing: .15em; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-weight: 800; letter-spacing: -.055em; line-height: 1.08; }
h1 { max-width: 700px; margin-bottom: 1.45rem; font-size: clamp(3.2rem, 7vw, 6.1rem); }
h2 { margin-bottom: 1.35rem; font-size: clamp(2.1rem, 4vw, 3.65rem); }
h3 { margin-bottom: .7rem; font-size: 1.35rem; letter-spacing: -.03em; }
.lede { max-width: 620px; color: #494842; font-size: clamp(1.05rem, 1.6vw, 1.22rem); }
.button { display: inline-flex; margin-top: 1.2rem; border-radius: 999px; padding: .88rem 1.35rem; background: var(--orange); color: white; font-weight: 700; text-decoration: none; box-shadow: 0 8px 24px rgba(241, 104, 44, .28); transition: transform .2s ease, background .2s ease; }
.button:hover { background: var(--orange-dark); transform: translateY(-2px); }
.hero-art { position: relative; width: min(100%, 540px); aspect-ratio: 48 / 27; margin-left: auto; }
.hero-art::before { position: absolute; z-index: 0; top: -13%; right: -10%; width: 42%; aspect-ratio: 1; border-radius: 50%; background: rgba(241, 104, 44, .22); content: ""; filter: blur(3px); }
.hero-art::after { position: absolute; z-index: 0; bottom: -10%; left: 13%; width: 28%; aspect-ratio: 1; border-radius: 50%; background: rgba(247, 188, 131, .38); content: ""; filter: blur(3px); }
.product-shell { position: relative; z-index: 1; width: 100%; height: 100%; overflow: hidden; border-radius: clamp(14px, 2vw, 24px); background: #343636; box-shadow: 0 20px 38px rgba(22, 20, 17, .22); }
.product-shell::after { position: absolute; z-index: 5; inset: 3px; border: 1px solid #737571; border-radius: calc(clamp(14px, 2vw, 24px) - 3px); content: ""; pointer-events: none; }
.product-display { position: absolute; inset: clamp(8px, 1.8vw, 12px); overflow: hidden; border-radius: clamp(6px, 1.2vw, 10px); background: radial-gradient(circle at 75% 22%, rgba(255, 238, 184, .88) 0 5%, transparent 5.5%), linear-gradient(180deg, #9fcbd3 0 47%, #c8e0df 48% 53%, #e7c998 54% 66%, #7e9b81 67% 100%); }
.product-display::before { position: absolute; inset: 35% -12% 0; background: repeating-linear-gradient(168deg, transparent 0 11%, rgba(255,255,255,.42) 11.5% 13%, transparent 13.5% 23%); content: ""; opacity: .72; }
.product-display::after { position: absolute; inset: 0; background: linear-gradient(125deg, rgba(255,255,255,.25), transparent 35%, rgba(255,255,255,.08)); content: ""; }
.product-display-label { position: absolute; z-index: 1; right: 7%; bottom: 7%; color: rgba(255,255,255,.8); font-size: clamp(.55rem, 1.1vw, .9rem); font-weight: 800; letter-spacing: .18em; }
.product-band { position: absolute; z-index: 2; width: 16.667%; height: 3.5%; background: #222624; }
.product-band-left { left: 0; top: 27.88%; }
.product-band-right { right: 0; top: 68.62%; }
.product-driver { position: absolute; z-index: 3; display: grid; width: 25%; aspect-ratio: 1; place-items: center; border: 1px solid #747a75; border-radius: 50%; background: #171b1a; box-shadow: inset 0 0 0 2px #171b1a, 0 9px 15px rgba(0,0,0,.2); transform: translate(-50%, -50%); }
.product-driver-left { left: 16.667%; top: 29.63%; }
.product-driver-right { left: 83.333%; top: 70.37%; }
.product-cone { display: grid; width: 76%; aspect-ratio: 1; place-items: center; border: 3px solid rgba(0,0,0,.72); border-radius: 50%; background: radial-gradient(circle at 50% 50%, #3f4542 0 8%, #181c1a 38%, #363b37 62%, #1a1d1b 68%); }
.product-core { display: block; width: 36%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 32% 27%, #494d48, #000 70%); }
.section { padding: clamp(5rem, 10vw, 9rem) 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2.8rem; border-top: 1px solid var(--line); }
.feature-card { min-height: 265px; padding: 2rem 2rem 1.5rem 0; border-right: 1px solid var(--line); }
.feature-card + .feature-card { padding-left: 2rem; }
.feature-card:last-child { border-right: 0; }
.feature-number { margin-bottom: 2.8rem; color: var(--orange); font-size: .9rem; font-weight: 800; }
.feature-card p:last-child { color: var(--muted); }
.company-section { padding: clamp(4rem, 8vw, 6.5rem) 0; background: var(--ink); color: white; }
.company-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(3rem, 8vw, 8rem); }
.company-section h2 { font-size: clamp(2.1rem, 3.7vw, 3.45rem); }
.company-section p:not(.eyebrow) { max-width: 570px; color: rgba(255,255,255,.72); }
.company-facts { margin: 0; border-top: 1px solid rgba(255,255,255,.2); }
.company-facts div { padding: 1.15rem 0; border-bottom: 1px solid rgba(255,255,255,.2); }
dt { margin-bottom: .25rem; color: rgba(255,255,255,.6); font-size: .85rem; }
dd { margin: 0; font-weight: 600; }
.contact-section { text-align: center; }
.contact-section .lede { margin-right: auto; margin-left: auto; }
.contact-email { display: inline-block; margin: .8rem 0 1.2rem; color: var(--orange-dark); font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800; letter-spacing: -.045em; }
.contact-note { color: var(--muted); font-size: .92rem; }
.site-footer { padding: 1.8rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .86rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.footer-inner p { margin: 0; }
.footer-inner div { display: flex; gap: 1.25rem; }
.icp-record { margin: .8rem 0 0; text-align: center; }
.legal-page { max-width: 820px; padding-top: clamp(4rem, 8vw, 7rem); padding-bottom: clamp(4rem, 8vw, 7rem); }
.legal-page h1 { font-size: clamp(2.7rem, 6vw, 4.4rem); }
.legal-page h2 { margin-top: 3rem; margin-bottom: .8rem; font-size: clamp(1.45rem, 2.4vw, 2rem); }
.legal-page p { color: #44433e; }
.legal-updated { color: var(--muted) !important; font-size: .92rem; }

@media (max-width: 760px) {
  .shell { width: min(100% - 32px, 1120px); }
  .header-inner { min-height: 64px; }
  nav { gap: .9rem; }
  nav a { font-size: .82rem; }
  .hero-grid, .company-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 3.2rem; }
  .hero-art { max-width: 510px; width: 90%; margin: 0 auto; }
  .section-heading { display: block; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card, .feature-card + .feature-card { min-height: auto; padding: 1.7rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .feature-number { margin-bottom: 1.35rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}