:root {
  --paper: #fff7eb;
  --paper-dim: #f6e8d4;
  --room: #f3e2c4;
  --ink: #2a2118;
  --muted: #8a735c;
  --line: rgba(186, 128, 48, 0.16);
  --accent: #ee9b1a;
  --accent-soft: #f5b942;
  --on-accent: #2a1f12;
  --card: #fffaf2;
  --read: #f4e6c8;
  --read-ink: #3a2a18;
  --max: 1080px;
  --nav-h: 72px;
  --font: "PingFang SC", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, sans-serif;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(900px 520px at 88% -12%, rgba(238, 155, 26, 0.14), transparent 62%),
    radial-gradient(640px 420px at 6% 108%, rgba(243, 226, 196, 0.9), transparent 64%),
    var(--paper);
}

body.legal {
  background: var(--paper);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: #b56d0e;
}

button,
input {
  font: inherit;
}

.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 {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 14px;
  border-radius: 999px;
  z-index: 30;
  text-decoration: none;
  font-weight: 600;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.wrap-narrow {
  width: min(720px, calc(100% - 40px));
}

.press {
  transition: transform 150ms ease-out;
}

.press:active {
  transform: scale(0.97);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--nav-h);
  display: flex;
  align-items: center;
}

.nav-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 10px 8px 12px;
  border-radius: 28px;
  background: rgba(255, 250, 240, 0.72);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  border: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-right: auto;
}

.brand img {
  border-radius: 10px;
}

.brand-en {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-cta,
.cta button,
.btn {
  height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.nav-cta:hover,
.cta button:hover,
.btn:hover {
  background: var(--accent-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.nav-cta:focus-visible,
.cta button:focus-visible,
.btn:focus-visible,
.cta input:focus-visible,
.faq summary:focus-visible,
.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding: 36px 0 80px;
}

.kicker {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  color: #b56d0e;
  letter-spacing: 0.04em;
}

h1,
.section h2,
.phone-title {
  font-family: var(--serif);
}

h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0;
}

.lead {
  margin: 16px 0 0;
  font-size: 17px;
  color: var(--muted);
  max-width: 34em;
}

.cta {
  margin-top: 28px;
}

.cta form,
.downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.cta input[type="email"] {
  min-width: 240px;
  flex: 1;
  height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.cta input[type="email"]::placeholder {
  color: var(--muted);
}

.cta button,
.btn {
  height: 48px;
  padding: 0 22px;
}

.cta button:disabled {
  opacity: 0.55;
  cursor: wait;
}

.note,
.meta {
  width: 100%;
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.hero-stage {
  display: flex;
  justify-content: center;
}

.phone {
  width: 280px;
  height: 572px;
  border-radius: 40px;
  background: #2a2118;
  padding: 9px;
  box-shadow: 0 36px 72px -28px rgba(42, 33, 24, 0.45);
}

.phone-screen {
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: var(--read);
  padding: 22px 22px 18px;
  color: var(--read-ink);
  display: flex;
  flex-direction: column;
  font-family: var(--serif);
}

.phone-status {
  display: flex;
  justify-content: space-between;
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #9a7a52;
}

.phone-title {
  margin: 22px 0 14px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.phone-body {
  flex: 1;
  font-size: 15px;
  line-height: 1.85;
}

.phone-body p {
  margin: 0 0 0.9em;
}

.phone-fork {
  font-family: var(--font);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: center;
  color: #9a7a52;
  padding: 10px 0 6px;
}

.phone-bot {
  font-family: var(--font);
  font-size: 11px;
  text-align: center;
  color: #9a7a52;
}

.section {
  padding: 12px 0 72px;
}

.section h2 {
  font-size: 30px;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
}

.card .tag {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #b56d0e;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-family: var(--serif);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 18px;
  margin-top: 10px;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
}

.faq p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.final h2 {
  margin-bottom: 6px;
}

.legal .nav-inner {
  width: min(720px, calc(100% - 40px));
}

.prose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  margin: 24px 0 64px;
}

.prose h1 {
  font-family: var(--serif);
  font-size: 30px;
}

.prose h2 {
  font-size: 18px;
  margin-top: 28px;
}

.prose p,
.prose li {
  color: #5c4a38;
}

.foot {
  padding: 24px 0 48px;
  color: var(--muted);
  font-size: 13px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: space-between;
}

.foot a {
  color: inherit;
  text-decoration: none;
}

.foot-links {
  display: flex;
  gap: 16px;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 20px;
  }

  .nav-links {
    display: none;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .press {
    transition: none;
  }
}