:root {
  color-scheme: light;
  --paper: #fff8f1;
  --paper-card: #fffdf9;
  --paper-deep: #f5e9dc;
  --ink: #352c29;
  --muted: #756964;
  --amber: #98652f;
  --gold: #e4a86c;
  --sun: #ffad22;
  --safe: #6f806c;
  --line: rgba(83, 61, 48, 0.14);
  --shadow: 0 28px 80px rgba(79, 51, 31, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html {
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.28;
  pointer-events: none;
  background-image: radial-gradient(rgba(152, 101, 47, 0.15) 0.55px, transparent 0.55px);
  background-size: 6px 6px;
  mask-image: linear-gradient(to bottom, #000, transparent 40%);
}

a { color: inherit; }

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 12px;
  color: #fff;
  background: var(--amber);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus { transform: translateY(0); }

a:focus-visible {
  outline: 3px solid rgba(152, 101, 47, 0.4);
  outline-offset: 4px;
  border-radius: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(83, 61, 48, 0.08);
  background: rgba(255, 248, 241, 0.82);
  backdrop-filter: blur(18px) saturate(1.2);
}

.nav-shell,
.section-shell,
.footer-shell {
  width: min(100% - 48px, 1180px);
  margin-inline: auto;
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  flex: none;
  border-radius: 22.5%;
  box-shadow: 0 8px 24px rgba(95, 56, 24, 0.16);
}

.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { font-size: 17px; letter-spacing: 0.08em; }
.brand-copy small { color: var(--muted); font-size: 11px; letter-spacing: 0.04em; }

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { color: var(--muted); font-size: 14px; font-weight: 600; text-decoration: none; }
.site-nav a:hover { color: var(--ink); }
.site-nav .nav-language { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); }
.site-nav .nav-download { padding: 10px 18px; border-radius: 999px; color: #fff; background: var(--ink); }

.hero {
  width: min(100% - 48px, 1320px);
  min-height: calc(100svh - 76px);
  margin-inline: auto;
  padding: clamp(72px, 9vw, 128px) 0 clamp(104px, 11vw, 154px);
  display: grid;
  grid-template-columns: minmax(0, 0.87fr) minmax(460px, 1.13fr);
  align-items: center;
  gap: clamp(56px, 7vw, 110px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 24px; height: 1px; background: var(--gold); }

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(46px, 4.7vw, 68px);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: -0.065em;
  white-space: nowrap;
}

.hero-lead {
  max-width: 640px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.86;
}

.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 36px; }

.store-button {
  min-width: 196px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 22px 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 17px;
  color: #fff;
  background: var(--ink);
  box-shadow: 0 16px 34px rgba(53, 44, 41, 0.18);
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.store-button:hover { transform: translateY(-2px); box-shadow: 0 20px 40px rgba(53, 44, 41, 0.24); }
.store-symbol { font-family: -apple-system, BlinkMacSystemFont, sans-serif; font-size: 34px; line-height: 1; }
.store-button span:last-child { display: grid; gap: 1px; }
.store-button small { font-size: 10px; letter-spacing: 0.08em; }
.store-button strong { font-size: 18px; }
.text-button { color: var(--amber); font-size: 14px; font-weight: 700; text-decoration: none; }
.text-button span { display: inline-block; margin-left: 5px; }
.store-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; }

.trust-list {
  margin: 32px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  color: var(--muted);
  font-size: 13px;
  list-style: none;
}

.trust-list li { display: flex; align-items: center; gap: 8px; }
.trust-list li::before { width: 6px; height: 6px; border-radius: 50%; background: var(--safe); content: ""; }

.hero-visual { position: relative; min-height: 640px; display: grid; place-items: center; }

.sun-glow {
  position: absolute;
  top: -7%;
  right: 0;
  width: 68%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 173, 34, 0.32), rgba(228, 168, 108, 0.12) 42%, transparent 70%);
  filter: blur(4px);
}

.device-shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 10px solid rgba(255, 253, 249, 0.98);
  border-radius: 48px;
  background: #fff8f1;
  box-shadow: 0 34px 90px rgba(65, 40, 25, 0.2);
}

.device-shot img { width: 100%; height: auto; }
.device-shot figcaption { margin: 0; padding: 13px 18px 7px; color: inherit; font-size: 11px; letter-spacing: 0.1em; text-align: center; }

.device-shot-main {
  position: absolute;
  z-index: 3;
  top: 1%;
  left: 10%;
  width: 52%;
  transform: rotate(-1.2deg);
}

.device-shot-back {
  position: absolute;
  z-index: 2;
  right: 4%;
  bottom: -2%;
  width: 45%;
  opacity: 0.78;
  transform: rotate(1.8deg);
}

.real-ui-badge {
  position: absolute;
  z-index: 4;
  right: 0;
  bottom: 4%;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 15px;
  border: 1px solid rgba(152, 101, 47, 0.14);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 253, 249, 0.94);
  box-shadow: 0 12px 32px rgba(65, 40, 25, 0.12);
  backdrop-filter: blur(12px);
  font-size: 11px;
  font-weight: 700;
}

.real-ui-badge span { color: var(--safe); font-size: 9px; }

.statement { padding: clamp(100px, 14vw, 180px) 0; text-align: center; }
.statement h2,
.section-heading h2,
.privacy-copy h2,
.pro-copy h2,
.download h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.statement > p:last-child { max-width: 760px; margin: 28px auto 0; color: var(--muted); font-size: 18px; line-height: 1.85; }

.immersive { overflow: hidden; color: #f7eee7; background: #1b1715; }
.immersive-inner { min-height: 840px; padding: 100px 0 0; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(310px, 0.88fr); align-items: center; gap: clamp(60px, 10vw, 150px); }
.immersive-copy { padding-bottom: 100px; }
.immersive-copy .section-kicker { color: #e3ae78; }
.immersive-copy h2,
.today-copy h2 { margin: 0; font-size: clamp(36px, 5.2vw, 66px); line-height: 1.16; letter-spacing: -0.05em; }
.immersive-copy > p:not(.section-kicker) { max-width: 650px; margin: 26px 0 0; color: #c8b9af; font-size: 18px; line-height: 1.85; }
.immersive-copy ul { margin: 32px 0 0; padding: 0; display: grid; gap: 13px; color: #c8b9af; list-style: none; }
.immersive-copy li { display: flex; align-items: center; gap: 11px; }
.immersive-copy li::before { width: 7px; height: 7px; border-radius: 50%; background: #e3ae78; content: ""; }
.immersive-shot { align-self: end; width: min(100%, 390px); max-height: 740px; justify-self: center; border-color: #27211e; border-bottom: 0; border-radius: 52px 52px 0 0; color: #c8b9af; background: #000; box-shadow: 0 36px 100px rgba(0, 0, 0, 0.42); }
.immersive-shot img { object-fit: cover; object-position: top; }

.today-showcase { padding: clamp(110px, 14vw, 180px) 0; display: grid; grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr); align-items: center; gap: clamp(70px, 10vw, 150px); }
.today-shot { width: min(100%, 380px); justify-self: center; color: var(--muted); transform: rotate(-1.4deg); }
.today-copy > p:not(.section-kicker) { max-width: 650px; margin: 26px 0 0; color: var(--muted); font-size: 18px; line-height: 1.85; }
.today-copy blockquote { margin: 34px 0 0; padding: 18px 0 18px 24px; border-left: 2px solid var(--gold); color: var(--amber); font-size: 20px; font-weight: 700; }

.experience { padding: 72px 0 140px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 48px; margin-bottom: 46px; }
.section-heading > p { max-width: 360px; margin: 0; color: var(--muted); line-height: 1.75; }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

.feature-card {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(255, 253, 249, 0.88);
  box-shadow: 0 18px 55px rgba(79, 51, 31, 0.07);
}

.feature-primary { min-height: 520px; grid-row: span 2; }
.feature-number { position: absolute; top: 26px; right: 28px; z-index: 2; color: rgba(53, 44, 41, 0.35); font: 600 12px/1 ui-monospace, monospace; letter-spacing: 0.12em; }
.feature-content { position: relative; z-index: 2; max-width: 420px; }
.feature-content p { margin: 0 0 7px; color: var(--amber); font-size: 12px; font-weight: 750; letter-spacing: 0.12em; }
.feature-content h3 { margin: 0; font-size: clamp(28px, 3vw, 42px); letter-spacing: -0.04em; }
.feature-content span { display: block; margin-top: 13px; color: var(--muted); line-height: 1.75; }

.feature-photo { position: absolute; inset: 0; }
.feature-photo::after { position: absolute; inset: 0; content: ""; background: linear-gradient(to top, rgba(24, 18, 15, 0.86), rgba(24, 18, 15, 0.08) 72%); }
.feature-photo img { width: 100%; height: 100%; object-fit: cover; }
.feature-primary .feature-number { color: rgba(255, 255, 255, 0.6); }
.feature-primary .feature-content p { color: #f3bc6a; }
.feature-primary .feature-content h3 { color: #fff; }
.feature-primary .feature-content span { color: rgba(255, 255, 255, 0.76); }

.feature-symbol { width: 100%; flex: 1; position: relative; min-height: 180px; }
.compare-symbol i { position: absolute; width: 34%; aspect-ratio: 0.82; border: 7px solid #fff; border-radius: 18px; background: linear-gradient(155deg, rgba(228, 168, 108, 0.8), rgba(152, 101, 47, 0.2)); box-shadow: 0 18px 34px rgba(79, 51, 31, 0.12); }
.compare-symbol i:nth-child(1) { top: 18%; left: 9%; transform: rotate(-8deg); }
.compare-symbol i:nth-child(2) { top: 2%; left: 33%; transform: rotate(2deg); }
.compare-symbol i:nth-child(3) { top: 21%; right: 8%; transform: rotate(9deg); }
.rescue-symbol i { position: absolute; top: 15%; left: 50%; width: 56%; aspect-ratio: 1.4; border-radius: 50%; background: radial-gradient(circle at 65% 42%, #ffbf59 0 18%, #e4a86c 19% 38%, #f8ead8 39% 64%, transparent 65%); transform: translateX(-50%); filter: drop-shadow(0 18px 24px rgba(152, 101, 47, 0.14)); }
.timeline-symbol::before { position: absolute; top: 7%; bottom: 5%; left: 50%; width: 1px; background: rgba(152, 101, 47, 0.35); content: ""; }
.timeline-symbol i { position: absolute; width: 12px; height: 12px; border: 3px solid var(--paper-card); border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 1px rgba(152, 101, 47, 0.3); }
.timeline-symbol i:nth-child(1) { top: 12%; left: calc(50% - 6px); }
.timeline-symbol i:nth-child(2) { top: 48%; left: calc(50% - 6px); }
.timeline-symbol i:nth-child(3) { bottom: 8%; left: calc(50% - 6px); }

.privacy-band { overflow: hidden; background: #1f1b18; }
.privacy-inner { min-height: 540px; padding-block: 82px; display: grid; grid-template-columns: minmax(220px, 0.52fr) minmax(0, 1.48fr); align-items: center; gap: 70px; }
.privacy-mark { position: relative; display: grid; place-items: center; }
.privacy-mark::before { position: absolute; width: 130%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(228, 168, 108, 0.28), transparent 68%); content: ""; }
.privacy-mark img { position: relative; width: min(100%, 240px); border-radius: 22.5%; box-shadow: 0 28px 70px rgba(0, 0, 0, 0.3); }
.privacy-copy { color: #fff8f1; }
.privacy-copy .section-kicker { color: #e4a86c; }
.privacy-copy > p:not(.section-kicker) { max-width: 690px; margin: 24px 0 0; color: rgba(255, 248, 241, 0.7); font-size: 18px; line-height: 1.85; }
.privacy-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.privacy-links a { padding: 12px 17px; border: 1px solid rgba(255, 248, 241, 0.2); border-radius: 999px; color: #fff8f1; font-size: 14px; font-weight: 700; text-decoration: none; }
.privacy-links a:hover { background: rgba(255, 248, 241, 0.08); }

.pro { padding: clamp(110px, 14vw, 180px) 0; display: grid; grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1.2fr); align-items: center; gap: clamp(70px, 10vw, 150px); }
.pro-preview { text-align: center; }
.phone-shell { width: min(100%, 350px); margin-inline: auto; overflow: hidden; border: 11px solid #201b18; border-radius: 54px; background: #201b18; box-shadow: 0 38px 90px rgba(67, 43, 28, 0.2); transform: rotate(-2deg); }
.phone-shell img { width: 100%; }
.pro-preview > p { margin: 24px 0 0; color: var(--muted); font-size: 12px; letter-spacing: 0.12em; }
.pro-copy > p:not(.section-kicker) { max-width: 650px; margin: 24px 0 0; color: var(--muted); font-size: 18px; line-height: 1.85; }
.pro-copy ul { margin: 34px 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.pro-copy li { padding: 18px 0; display: flex; justify-content: space-between; gap: 28px; border-bottom: 1px solid var(--line); }
.pro-copy li span { color: var(--muted); text-align: right; }
.inline-link { color: var(--amber); font-weight: 700; text-decoration: none; }

.download {
  margin-bottom: 100px;
  padding: clamp(58px, 8vw, 96px) clamp(28px, 7vw, 84px);
  overflow: hidden;
  border-radius: 40px;
  color: #fff8f1;
  background: radial-gradient(circle at 90% 5%, rgba(255, 173, 34, 0.32), transparent 34%), linear-gradient(145deg, #9a6631, #5c3d27 78%);
  box-shadow: var(--shadow);
  text-align: center;
}

.download > img { margin: 0 auto 22px; border-radius: 22.5%; box-shadow: 0 22px 50px rgba(47, 27, 17, 0.28); }
.download .section-kicker { color: #f8d3a7; }
.download > p:not(.section-kicker) { max-width: 620px; margin: 20px auto 30px; color: rgba(255, 248, 241, 0.72); font-size: 17px; line-height: 1.75; }
.store-button-light { margin-inline: auto; color: var(--ink); background: #fff8f1; box-shadow: none; }
.download code { display: block; margin-top: 18px; color: rgba(255, 248, 241, 0.58); font-size: 12px; }

.site-footer { padding: 12px 0 52px; }
.footer-shell { padding-top: 34px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; border-top: 1px solid var(--line); }
.footer-shell nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 22px; }
.footer-shell nav a { color: var(--muted); font-size: 13px; font-weight: 600; text-decoration: none; }
.footer-shell > p { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }

@media (max-width: 980px) {
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 72px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 600px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-primary { min-height: 570px; grid-row: auto; }
  .immersive-inner { grid-template-columns: minmax(0, 1fr) minmax(280px, 0.7fr); gap: 48px; }
  .today-showcase { gap: 64px; }
  .privacy-inner { grid-template-columns: minmax(200px, 0.52fr) minmax(0, 1.48fr); gap: 44px; }
  .pro { gap: 64px; }
}

@media (max-width: 720px) {
  .nav-shell,
  .section-shell,
  .footer-shell,
  .hero { width: min(100% - 28px, 1180px); }
  .nav-shell { min-height: 68px; }
  .brand-copy small { display: none; }
  .site-nav { gap: 16px; }
  .site-nav a:not(.nav-download):not(.nav-language) { display: none; }
  .site-nav .nav-language { padding: 8px 11px; }
  .site-nav .nav-download { padding: 9px 14px; }
  .hero { padding-top: 62px; }
  .hero h1 { font-size: clamp(38px, 10.8vw, 54px); }
  .hero-lead { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .hero-visual { min-height: 530px; }
  .device-shot { border-width: 7px; border-radius: 36px; }
  .device-shot-main { top: 0; left: 2%; width: 58%; }
  .device-shot-back { right: 0; bottom: 0; width: 51%; }
  .real-ui-badge { right: 2%; bottom: -1%; }
  .statement { padding: 96px 0 116px; }
  .statement h2 br { display: none; }
  .immersive-inner { min-height: auto; padding-top: 82px; grid-template-columns: 1fr; gap: 54px; }
  .immersive-copy { padding-bottom: 0; }
  .immersive-shot { width: min(86%, 360px); max-height: 660px; }
  .today-showcase { grid-template-columns: 1fr; }
  .today-shot { width: min(86%, 350px); order: 2; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 18px; }
  .experience { padding-bottom: 100px; }
  .feature-card { min-height: 390px; border-radius: 26px; }
  .feature-primary { min-height: 510px; }
  .privacy-inner { padding-block: 82px; grid-template-columns: 1fr; gap: 58px; }
  .privacy-mark img { width: 210px; }
  .pro { grid-template-columns: 1fr; }
  .pro-preview { order: 2; }
  .phone-shell { width: min(88%, 330px); }
  .pro-copy li { align-items: flex-start; flex-direction: column; gap: 5px; }
  .pro-copy li span { text-align: left; }
  .download { margin-bottom: 70px; border-radius: 30px; }
  .footer-shell { grid-template-columns: 1fr; }
  .footer-shell nav { justify-content: flex-start; }
  .footer-shell > p { grid-column: auto; }
}

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