:root {
  --ink: #332b28;
  --muted: #766a65;
  --paper: #fbf7f1;
  --paper-deep: #f3ebe2;
  --card: #fffdf9;
  --rose: #b97973;
  --rose-deep: #925c58;
  --rose-soft: #f2dfdc;
  --sage: #8a9b88;
  --sand: #c5a37e;
  --line: rgba(70, 54, 48, 0.13);
  --shadow: 0 24px 70px rgba(82, 60, 50, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-shell { min-height: 100vh; overflow: hidden; }
.container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
.narrow { width: min(940px, calc(100% - 48px)); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(70, 54, 48, 0.08);
  background: rgba(251, 247, 241, 0.9);
  backdrop-filter: blur(18px);
}
.header-inner { height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-icon {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  background: var(--rose-soft); border: 1px solid rgba(185, 121, 115, 0.16);
}
.brand-icon img { width: 23px; height: 23px; }
.brand > span:last-child { display: flex; flex-direction: column; line-height: 1.25; }
.brand strong { font-size: 16px; letter-spacing: 0.06em; }
.brand small { color: var(--muted); font-size: 10px; margin-top: 4px; letter-spacing: 0.08em; }
.site-header nav { display: flex; align-items: center; gap: 34px; font-size: 14px; color: #615650; }
.site-header nav a { transition: color 160ms ease; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--rose-deep); }

.hero { position: relative; min-height: 720px; display: grid; align-items: center; }
.hero-photo {
  position: absolute; inset: 0; z-index: -2;
  background-image: linear-gradient(90deg, rgba(251,247,241,.99) 0%, rgba(251,247,241,.95) 43%, rgba(251,247,241,.52) 72%, rgba(251,247,241,.3) 100%), url('/assets/hero-still-life.png');
  background-size: cover; background-position: center;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0; height: 180px; z-index: -1;
  background: linear-gradient(transparent, var(--paper));
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr); align-items: center; gap: 82px; padding: 82px 0 96px; }
.hero-copy { max-width: 660px; }
.eyebrow { margin: 0 0 18px; color: var(--rose-deep); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(52px, 5.5vw, 78px); line-height: 1.16; letter-spacing: -.045em; font-weight: 600; }
.hero h1 span { color: var(--rose-deep); }
.hero-lead { max-width: 600px; margin: 28px 0 0; font-size: 18px; color: #695e59; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.button { min-height: 48px; padding: 0 24px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, .site-header a:focus-visible, .text-link:focus-visible, .policy-nav a:focus-visible { outline: 3px solid rgba(185, 121, 115, .35); outline-offset: 4px; }
.button-primary { color: white; background: var(--rose-deep); box-shadow: 0 14px 26px rgba(146, 92, 88, .22); }
.button-primary:hover { background: #7f4d49; box-shadow: 0 17px 32px rgba(146, 92, 88, .28); }
.button-secondary { border: 1px solid rgba(70, 54, 48, .18); background: rgba(255,255,255,.55); }
.release-note { margin-top: 28px; display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; }
.status-dot { width: 8px; height: 8px; border-radius: 99px; background: #d5a25e; box-shadow: 0 0 0 5px rgba(213,162,94,.15); }

.product-preview { position: relative; display: grid; place-items: center; }
.phone-frame { width: 350px; min-height: 594px; padding: 14px 18px 18px; border-radius: 42px; background: #fbf8f3; border: 8px solid rgba(55,45,41,.9); box-shadow: 0 35px 80px rgba(77,53,45,.2), inset 0 0 0 1px rgba(255,255,255,.8); transform: rotate(2deg); }
.phone-topline { display: flex; justify-content: space-between; align-items: center; padding: 0 5px 14px; font-size: 9px; font-weight: 700; }
.phone-pill { width: 62px; height: 18px; border-radius: 20px; background: #2f2825; }
.preview-head { display: flex; justify-content: space-between; align-items: center; padding: 9px 4px 18px; }
.preview-head > div { display: flex; flex-direction: column; }
.preview-head span { font-size: 10px; color: var(--muted); }
.preview-head strong { font-family: "Songti SC", serif; font-size: 19px; }
.preview-head img { width: 30px; height: 30px; }
.summary-card { padding: 20px; border-radius: 22px; color: white; background: linear-gradient(140deg, #9c6661, #c18881); box-shadow: 0 15px 28px rgba(145, 93, 88, .2); }
.summary-label { display: block; font-size: 10px; opacity: .8; }
.summary-card > strong { display: block; font-family: "Songti SC", serif; font-size: 32px; margin: 3px 0 7px; }
.summary-row { display: flex; gap: 16px; font-size: 9px; opacity: .88; }
.preview-list { display: grid; gap: 10px; padding-top: 14px; }
.preview-item { display: grid; grid-template-columns: 40px 1fr auto; gap: 10px; align-items: center; padding: 13px 12px; border-radius: 17px; background: white; box-shadow: 0 8px 22px rgba(66,49,43,.06); }
.item-icon { width: 40px; height: 40px; border-radius: 13px; display: grid; place-items: center; font-family: "Songti SC", serif; font-weight: 700; }
.item-icon-rose { background: #f3ddda; color: #98635e; }
.item-icon-sage { background: #e4eae2; color: #70816f; }
.item-icon-sand { background: #f0e4d3; color: #9b7a54; }
.preview-item div { display: flex; min-width: 0; flex-direction: column; line-height: 1.35; }
.preview-item strong { font-size: 12px; }
.preview-item div span { font-size: 9px; color: var(--muted); margin-top: 4px; white-space: nowrap; }
.preview-item em { font-style: normal; font-size: 9px; color: #70816f; padding: 3px 7px; border-radius: 99px; background: #edf1eb; }
.preview-item em.risk { color: #9b6d3c; background: #f6ecdd; }
.preview-tabs { margin: 16px 18px 0; display: flex; align-items: center; justify-content: space-between; color: #9a8f89; font-size: 10px; }
.preview-tabs span.active { color: var(--rose-deep); font-weight: 700; }
.preview-tabs b { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: white; font-size: 22px; line-height: 1; background: var(--rose-deep); box-shadow: 0 8px 18px rgba(146,92,88,.24); }
.decor-dot { position: absolute; border-radius: 50%; z-index: -1; }
.decor-dot-one { width: 160px; height: 160px; right: -34px; top: 46px; background: rgba(233,205,196,.52); }
.decor-dot-two { width: 94px; height: 94px; left: 2px; bottom: 72px; border: 1px solid rgba(146,92,88,.2); }

.trust-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.38); }
.trust-items { min-height: 70px; display: flex; align-items: center; justify-content: center; gap: 24px; color: #6d625d; font-size: 12px; letter-spacing: .06em; }
.trust-items i { width: 3px; height: 3px; border-radius: 50%; background: var(--rose); opacity: .6; }
.section { padding: 118px 0; }
.section-heading { max-width: 650px; margin-bottom: 48px; }
.section-heading h2, .workflow h2, .about h2, .cta-card h2 { margin: 0; font-family: "Songti SC", "STSong", serif; font-weight: 600; font-size: clamp(36px, 4vw, 52px); line-height: 1.25; letter-spacing: -.035em; }
.section-heading > p:last-child { margin: 17px 0 0; color: var(--muted); font-size: 16px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card { min-height: 280px; padding: 30px 28px; border-radius: 26px; background: var(--card); border: 1px solid rgba(80,62,55,.08); box-shadow: 0 12px 34px rgba(73,54,47,.045); transition: transform 180ms ease, box-shadow 180ms ease; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px rgba(73,54,47,.08); }
.feature-icon { width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center; background: var(--rose-soft); }
.feature-icon img { width: 26px; height: 26px; }
.feature-card:nth-child(2) .feature-icon { background: #e7ece4; }
.feature-card:nth-child(3) .feature-icon { background: #f3e7d7; }
.feature-card:nth-child(4) .feature-icon { background: #ebe4ef; }
.feature-card h3 { margin: 36px 0 11px; font-size: 18px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

.workflow { background: #f3ece4; }
.workflow-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 92px; align-items: center; }
.workflow-visual > p { margin: 18px 0 0 28px; color: var(--muted); font-family: "Songti SC", serif; font-size: 17px; }
.illustration-card { min-height: 400px; display: grid; place-items: center; padding: 45px; border-radius: 34px; background: rgba(255,253,249,.78); border: 1px solid rgba(80,62,55,.08); box-shadow: var(--shadow); }
.illustration-card img { width: min(420px, 100%); mix-blend-mode: multiply; }
.step-list { margin-top: 43px; display: grid; gap: 0; }
.step { position: relative; display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 0 0 30px; }
.step:not(:last-child)::after { content: ""; position: absolute; left: 25px; top: 49px; bottom: 5px; width: 1px; background: rgba(146,92,88,.22); }
.step > span { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; color: var(--rose-deep); font-size: 12px; font-weight: 800; background: rgba(255,255,255,.65); border: 1px solid rgba(146,92,88,.18); }
.step h3 { margin: 2px 0 4px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.about { background: var(--paper); }
.about-card { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; padding: 62px; border-radius: 36px; border: 1px solid var(--line); background: var(--card); }
.about-copy { border-left: 1px solid var(--line); padding-left: 62px; }
.about-copy p { margin: 0 0 18px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.text-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 10px; color: var(--rose-deep); font-size: 14px; font-weight: 700; }
.text-link span { transition: transform 160ms ease; }
.text-link:hover span { transform: translateX(4px); }
.final-cta { padding-top: 0; }
.cta-card { min-height: 260px; display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 58px 64px; border-radius: 36px; color: white; overflow: hidden; position: relative; background: linear-gradient(135deg, #77504d, #a66f69); }
.cta-card::before, .cta-card::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.12); }
.cta-card::before { width: 320px; height: 320px; right: -70px; top: -170px; }
.cta-card::after { width: 180px; height: 180px; right: 180px; bottom: -120px; }
.cta-card > * { position: relative; z-index: 1; }
.cta-card .eyebrow { color: rgba(255,255,255,.72); }
.cta-card h2 { max-width: 690px; font-size: clamp(32px, 4vw, 48px); }
.button-light { flex: 0 0 auto; background: white; color: var(--rose-deep); box-shadow: 0 14px 28px rgba(60,35,32,.18); }

.site-footer { background: #2d2724; color: #eee6df; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr .6fr; gap: 70px; padding: 68px 0 50px; }
.brand-footer .brand-icon { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.09); }
.brand-footer .brand-icon img { filter: brightness(0) invert(1); opacity: .82; }
.brand-footer small { color: #aa9f99; }
.footer-brand p { color: #a99e98; font-size: 13px; margin: 17px 0 0 53px; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; font-size: 13px; color: #bdb2ac; }
.footer-column h2 { margin: 0 0 9px; color: white; font-size: 13px; letter-spacing: .1em; }
.footer-column a:hover { color: white; }
.filing-bar { min-height: 64px; border-top: 1px solid rgba(255,255,255,.09); display: flex; align-items: center; gap: 16px; color: #958b85; font-size: 12px; }
.filing-bar a { color: #c7bbb4; }
.filing-bar a:hover { color: white; }
.public-security-filing { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.public-security-filing img { width: 12px; height: 13px; object-fit: contain; }

.privacy-hero { padding: 92px 0 64px; border-bottom: 1px solid var(--line); background: linear-gradient(135deg, #f8f1e9, #f3e6e2); }
.privacy-hero h1 { margin: 0; font-family: "Songti SC", serif; font-size: clamp(42px, 6vw, 64px); line-height: 1.2; letter-spacing: -.04em; }
.privacy-hero > .container > p:not(.eyebrow) { max-width: 650px; margin: 22px 0 0; color: var(--muted); font-size: 16px; }
.privacy-meta { display: flex; gap: 22px; margin-top: 28px; color: #8a7e78; font-size: 12px; }
.privacy-content { padding: 76px 0 120px; }
.policy-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 74px; align-items: start; }
.policy-nav { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 12px; padding: 22px; border-radius: 18px; background: rgba(255,255,255,.5); border: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.policy-nav strong { color: var(--ink); margin-bottom: 4px; }
.policy-nav a:hover { color: var(--rose-deep); }
.policy-body { min-width: 0; }
.policy-body section { scroll-margin-top: 105px; margin-bottom: 50px; }
.policy-body h2 { margin: 0 0 18px; font-family: "Songti SC", serif; font-size: 26px; }
.policy-body h3 { margin: 22px 0 6px; font-size: 15px; }
.policy-body p, .policy-body li { color: #695f5a; font-size: 14px; line-height: 1.95; }
.policy-body p { margin: 0 0 14px; }
.policy-body ul { margin: 0; padding-left: 1.3em; }
.policy-table { margin: 20px 0; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: rgba(255,255,255,.45); }
.policy-row { display: grid; grid-template-columns: 180px 1fr; }
.policy-row + .policy-row { border-top: 1px solid var(--line); }
.policy-row span { padding: 15px 17px; color: #695f5a; font-size: 13px; }
.policy-row span + span { border-left: 1px solid var(--line); }
.policy-head { background: var(--paper-deep); font-weight: 700; }
.policy-head span { color: var(--ink); }
.contact-box { padding: 30px; border-radius: 22px; background: #f3e8e4; border: 1px solid rgba(146,92,88,.12); }
.contact-box a { color: var(--rose-deep); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr .82fr; gap: 34px; }
  .phone-frame { width: 320px; transform: rotate(1deg) scale(.93); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .workflow-grid { gap: 48px; }
  .about-card { gap: 48px; padding: 48px; }
  .about-copy { padding-left: 44px; }
}

@media (max-width: 760px) {
  .container, .narrow { width: min(100% - 32px, 620px); }
  .header-inner { height: 68px; }
  .site-header nav { gap: 15px; font-size: 12px; }
  .site-header nav a:first-child { display: none; }
  .brand-icon { width: 38px; height: 38px; }
  .brand small { display: none; }
  .hero { min-height: auto; }
  .hero-photo { background-image: linear-gradient(rgba(251,247,241,.94), rgba(251,247,241,.98)), url('/assets/hero-still-life.png'); background-position: 65% center; }
  .hero-grid { grid-template-columns: 1fr; gap: 54px; padding: 72px 0 84px; }
  .hero h1 { font-size: clamp(44px, 13vw, 62px); }
  .hero-lead { font-size: 16px; }
  .product-preview { margin: 0 auto; }
  .phone-frame { width: min(340px, calc(100vw - 48px)); transform: none; }
  .decor-dot-one { right: -18px; }
  .release-note { align-items: flex-start; }
  .status-dot { flex: 0 0 auto; margin-top: 7px; }
  .trust-items { justify-content: flex-start; overflow-x: auto; padding: 0 16px; white-space: nowrap; scrollbar-width: none; }
  .section { padding: 82px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 0; }
  .workflow-grid { grid-template-columns: 1fr; }
  .illustration-card { min-height: 280px; padding: 28px; }
  .workflow-visual > p { margin-left: 0; }
  .about-card { grid-template-columns: 1fr; gap: 30px; padding: 34px 26px; }
  .about-copy { border-left: 0; border-top: 1px solid var(--line); padding: 28px 0 0; }
  .cta-card { min-height: 320px; align-items: flex-start; flex-direction: column; justify-content: center; padding: 40px 28px; }
  .button-light { align-self: flex-start; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; padding: 52px 0 40px; }
  .footer-brand p { margin-left: 0; }
  .filing-bar { min-height: 84px; padding: 20px 0; flex-wrap: wrap; gap: 7px 16px; }
  .privacy-hero { padding: 72px 0 52px; }
  .privacy-meta { flex-direction: column; gap: 4px; }
  .privacy-content { padding: 56px 0 90px; }
  .policy-layout { grid-template-columns: 1fr; gap: 36px; }
  .policy-nav { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
  .policy-nav strong { grid-column: 1 / -1; }
  .policy-row { grid-template-columns: 1fr; }
  .policy-row span + span { border-left: 0; border-top: 1px solid var(--line); }
  .policy-head { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}