:root {
  --ink: #090709;
  --ink-soft: #130e11;
  --panel: #1a1216;
  --panel-2: #21171c;
  --paper: #fff8f4;
  --muted: #baa9af;
  --muted-2: #8f7e84;
  --peach: #f3aa92;
  --peach-bright: #ffd9cc;
  --line: rgba(255, 255, 255, .105);
  --display: "Bodoni 72", Didot, "Songti SC", "Hiragino Mincho ProN", serif;
  --body: "Avenir Next", "PingFang SC", "Hiragino Sans", sans-serif;
  --page-width: 1160px;
  --card-radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 4%, rgba(164, 63, 99, .13), transparent 29rem),
    radial-gradient(circle at 88% 14%, rgba(245, 151, 119, .1), transparent 32rem),
    var(--ink);
  color: var(--paper);
  font-family: var(--body);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

a {
  color: inherit;
}

button,
select,
summary {
  font: inherit;
}

button {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--peach-bright);
  outline-offset: 4px;
}

.sr-only {
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  position: absolute;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-nav {
  width: min(var(--page-width), calc(100% - 32px));
  height: 70px;
  margin: 20px auto 0;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 28px;
  position: relative;
  z-index: 30;
  border: 1px solid var(--line);
  border-radius: 23px;
  background: rgba(18, 12, 15, .78);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 43px;
  height: 43px;
  border-radius: 13px;
  box-shadow: 0 8px 24px rgba(247, 153, 128, .17);
}

.brand strong {
  font-family: var(--display);
  font-size: 25px;
  font-style: italic;
  font-weight: 600;
  letter-spacing: -.035em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav-links a,
.site-footer nav a {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
  transition: color .2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.site-footer nav a:hover,
.site-footer nav a:focus-visible {
  color: var(--paper);
}

.nav-links a[aria-current="page"] {
  color: var(--peach-bright);
}

.language {
  min-width: 118px;
  height: 38px;
  padding: 0 32px 0 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  appearance: none;
  color: var(--peach-bright);
  background:
    linear-gradient(45deg, transparent 50%, var(--peach) 50%) calc(100% - 16px) 16px / 5px 5px no-repeat,
    linear-gradient(135deg, var(--peach) 50%, transparent 50%) calc(100% - 11px) 16px / 5px 5px no-repeat,
    rgba(255, 255, 255, .045);
  cursor: pointer;
}

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  height: 38px;
  padding: 0 14px;
  display: grid;
  place-items: center;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--paper);
  background: rgba(255, 255, 255, .045);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu-panel {
  width: min(260px, calc(100vw - 32px));
  padding: 10px;
  display: grid;
  gap: 4px;
  position: absolute;
  top: 48px;
  right: 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(18, 12, 15, .97);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .44);
}

.mobile-menu-panel a {
  padding: 12px 13px;
  border-radius: 11px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.mobile-menu-panel a:hover,
.mobile-menu-panel a:focus-visible {
  color: var(--paper);
  background: rgba(255, 255, 255, .06);
}

.page-hero {
  width: min(1320px, calc(100% - 28px));
  min-height: 520px;
  margin: 16px auto 0;
  padding: 72px max(42px, 7vw);
  display: grid;
  align-items: center;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 32px;
  isolation: isolate;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 5, 7, .92) 0%, rgba(7, 5, 7, .68) 48%, rgba(7, 5, 7, .28)),
    var(--hero-image, none) center / cover;
}

.features-hero {
  --hero-image: url("assets/hero-preview-v2.jpg");
}

.support-hero {
  --hero-image: url("assets/scene-stand-v1.jpg");
}

.privacy-hero {
  --hero-image: url("assets/sticker-circle-app-render.png");
}

.privacy-hero::after {
  background:
    radial-gradient(circle at 77% 52%, rgba(121, 221, 255, .12), transparent 28%),
    linear-gradient(90deg, rgba(7, 5, 7, .96) 0%, rgba(7, 5, 7, .82) 55%, rgba(7, 5, 7, .3)),
    var(--hero-image) 82% 48% / 430px auto no-repeat;
}

.hero-copy {
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--peach);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.page-hero h1,
.section-heading h2,
.feature-copy h2,
.pro-band h2,
.contact-band h2,
.legal-title {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -.055em;
}

.page-hero h1 {
  max-width: 760px;
  font-size: clamp(58px, 7vw, 94px);
  line-height: .91;
}

html[lang="zh-Hans"] .page-hero .hero-copy,
html[lang="ja"] .page-hero .hero-copy {
  max-width: 850px;
}

html[lang="zh-Hans"] .page-hero h1,
html[lang="ja"] .page-hero h1 {
  max-width: 850px;
  font-size: clamp(54px, 5.6vw, 78px);
  line-height: .96;
}

html[lang="zh-Hans"] body[data-page="support"] .page-hero .hero-copy,
html[lang="zh-Hans"] body[data-page="privacy"] .page-hero .hero-copy,
html[lang="ja"] body[data-page="support"] .page-hero .hero-copy,
html[lang="ja"] body[data-page="privacy"] .page-hero .hero-copy {
  max-width: 980px;
}

html[lang="zh-Hans"] body[data-page="support"] .page-hero h1,
html[lang="zh-Hans"] body[data-page="privacy"] .page-hero h1,
html[lang="ja"] body[data-page="support"] .page-hero h1,
html[lang="ja"] body[data-page="privacy"] .page-hero h1 {
  max-width: 980px;
  font-size: clamp(52px, 4.8vw, 68px);
}

.page-hero p:not(.eyebrow) {
  max-width: 610px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.62;
}

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

.section {
  padding: 118px 0;
}

.section + .section {
  border-top: 1px solid rgba(255, 255, 255, .07);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 54px;
}

.section-heading h2,
.feature-copy h2,
.pro-band h2,
.contact-band h2 {
  font-size: clamp(48px, 6vw, 76px);
  line-height: .97;
}

.section-heading p,
.feature-copy p,
.pro-band p,
.contact-band p,
.legal-copy p {
  color: var(--muted);
  line-height: 1.68;
}

.feature-story {
  min-height: 660px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .018));
}

.feature-story.reverse {
  grid-template-columns: .9fr 1.1fr;
}

.feature-story.reverse .feature-media {
  order: 2;
}

.feature-media {
  min-height: 620px;
  position: relative;
  overflow: hidden;
  background: #100b0e;
}

.feature-media img {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
}

.feature-media.contain img {
  padding: 40px;
  object-fit: contain;
}

.feature-copy {
  padding: 58px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 44px;
}

.feature-copy p {
  max-width: 52ch;
  margin: 20px 0 0;
}

.feature-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}

.feature-facts span {
  padding: 17px 0;
  color: var(--muted);
  font-size: 12px;
}

.feature-facts span:nth-child(odd) {
  padding-right: 20px;
}

.feature-facts span:nth-child(even) {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.feature-facts span:nth-child(n + 3) {
  border-top: 1px solid var(--line);
}

.sticker-studio {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 22px;
  align-items: stretch;
}

.sticker-stage {
  min-height: 680px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: #080608;
}

.sticker-stage img {
  width: min(700px, 92%);
  max-height: 640px;
  display: block;
  object-fit: contain;
  transition: opacity .18s ease, transform .3s ease;
}

.sticker-stage img.is-changing {
  opacity: .24;
  transform: scale(.98);
}

.sticker-controls {
  padding: 18px;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: rgba(255, 255, 255, .025);
}

.sticker-controls button {
  min-height: 58px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  transition: border-color .2s ease, background .2s ease, color .2s ease, transform .12s ease;
}

.sticker-controls button:hover,
.sticker-controls button:focus-visible {
  color: var(--paper);
  border-color: rgba(243, 170, 146, .45);
}

.sticker-controls button.active {
  border-color: rgba(243, 170, 146, .72);
  background: rgba(243, 170, 146, .12);
  color: var(--peach-bright);
}

.sticker-controls button:active,
.pro-band a:active,
.contact-band a:active {
  transform: scale(.98);
}

.capture-layout {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 22px;
}

.capture-main,
.capture-stack > article {
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: rgba(255, 255, 255, .025);
}

.capture-main {
  min-height: 520px;
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  position: relative;
  background:
    linear-gradient(180deg, transparent, rgba(7, 5, 7, .86)),
    url("assets/scene-night-v1.jpg") center / cover;
}

.capture-main h3,
.capture-stack h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 38px;
  font-weight: 500;
  letter-spacing: -.04em;
}

.capture-main p,
.capture-stack p {
  max-width: 52ch;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.62;
}

.capture-stack {
  display: grid;
  gap: 22px;
}

.capture-stack > article {
  min-height: 249px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.capture-stack > article:last-child {
  background:
    radial-gradient(circle at 80% 15%, rgba(243, 170, 146, .18), transparent 40%),
    rgba(255, 255, 255, .025);
}

.pro-band,
.contact-band {
  padding: 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 56px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background:
    radial-gradient(circle at 82% 10%, rgba(243, 170, 146, .15), transparent 36%),
    linear-gradient(145deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .018));
}

.pro-band p,
.contact-band p {
  max-width: 66ch;
  margin: 18px 0 0;
}

.pro-price {
  min-width: 230px;
  padding: 28px;
  border: 1px solid rgba(243, 170, 146, .3);
  border-radius: 22px;
  text-align: center;
  background: rgba(243, 170, 146, .055);
}

.pro-price span {
  display: block;
  color: var(--peach);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.pro-price strong {
  display: block;
  margin: 14px 0 6px;
  font-family: var(--display);
  font-size: 52px;
  font-weight: 500;
}

.pro-price small {
  color: var(--muted-2);
  font-size: 10px;
}

.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 50px;
  align-items: start;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 25px 52px 25px 0;
  position: relative;
  list-style: none;
  cursor: pointer;
  font-family: var(--display);
  font-size: 27px;
  letter-spacing: -.025em;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 23px;
  right: 4px;
  color: var(--peach);
  font-family: var(--body);
  font-size: 24px;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 68ch;
  margin: -5px 0 28px;
  color: var(--muted);
  line-height: 1.68;
}

.support-aside {
  padding: 28px;
  position: sticky;
  top: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, .025);
}

.support-aside h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 32px;
  font-weight: 500;
}

.support-aside p {
  color: var(--muted);
  line-height: 1.62;
}

.support-aside a,
.contact-band a {
  display: inline-flex;
  margin-top: 10px;
  padding: 13px 18px;
  border: 1px solid rgba(243, 170, 146, .46);
  border-radius: 999px;
  color: var(--peach-bright);
  text-decoration: none;
  transition: background .2s ease, transform .12s ease;
}

.support-aside a:hover,
.contact-band a:hover {
  background: rgba(243, 170, 146, .1);
}

.support-note {
  margin-top: 46px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.support-note h2 {
  margin: 0 0 12px;
  font-family: var(--display);
  font-size: 36px;
  font-weight: 500;
}

.support-note p {
  color: var(--muted);
  line-height: 1.68;
}

.legal-summary {
  margin: 40px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.legal-summary span {
  padding: 20px;
  color: var(--muted);
  text-align: center;
  font-size: 12px;
}

.legal-summary span + span {
  border-left: 1px solid var(--line);
}

.legal-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 720px);
  gap: 80px;
  justify-content: center;
  align-items: start;
}

.legal-toc {
  padding: 24px;
  display: grid;
  gap: 4px;
  position: sticky;
  top: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .02);
}

.legal-toc strong {
  margin-bottom: 10px;
  color: var(--paper);
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
}

.legal-toc a {
  padding: 8px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  text-decoration: none;
}

.legal-toc a:hover,
.legal-toc a:focus-visible {
  color: var(--peach-bright);
}

.legal-copy {
  min-width: 0;
}

.legal-meta {
  margin-bottom: 42px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.legal-meta a {
  color: var(--peach-bright);
}

.legal-copy section {
  padding: 0 0 38px;
  scroll-margin-top: 30px;
}

.legal-copy h2 {
  margin: 0 0 12px;
  font-family: var(--display);
  font-size: 34px;
  font-weight: 500;
  letter-spacing: -.025em;
}

.legal-copy p {
  margin: 0;
}

.site-footer {
  width: min(var(--page-width), calc(100% - 40px));
  min-height: 170px;
  margin: 20px auto 0;
  padding: 44px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.site-footer .brand strong {
  color: var(--paper);
}

.site-footer nav {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .site-nav > label {
    margin-left: auto;
  }

  .mobile-menu {
    display: block;
  }

  .page-hero {
    min-height: 500px;
  }

  .feature-story,
  .feature-story.reverse,
  .sticker-studio,
  .capture-layout,
  .pro-band,
  .contact-band,
  .support-layout,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .feature-story.reverse .feature-media {
    order: 0;
  }

  .feature-media {
    min-height: 500px;
  }

  .sticker-stage {
    min-height: 560px;
  }

  .sticker-controls {
    grid-template-columns: repeat(4, 1fr);
  }

  .sticker-controls button {
    min-height: 52px;
    padding: 0 12px;
    text-align: center;
  }

  .support-aside,
  .legal-toc {
    position: static;
  }

  .legal-toc {
    grid-template-columns: repeat(2, 1fr);
  }

  .legal-toc strong {
    grid-column: 1 / -1;
  }

  .site-footer {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .site-footer .brand,
  .site-footer nav {
    justify-content: center;
  }
}

@media (max-width: 560px) {
  .site-nav {
    height: 62px;
    margin-top: 10px;
    padding: 0 10px;
    gap: 8px;
    border-radius: 19px;
  }

  .brand {
    gap: 8px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .brand strong {
    font-size: 21px;
  }

  .language {
    min-width: 94px;
    height: 34px;
    padding-left: 10px;
    font-size: 10px;
  }

  .mobile-menu summary {
    height: 34px;
    padding: 0 10px;
    font-size: 10px;
  }

  .page-hero {
    min-height: 480px;
    padding: 52px 28px;
    border-radius: 26px;
  }

  .page-hero::after {
    background:
      linear-gradient(180deg, rgba(7, 5, 7, .66), rgba(7, 5, 7, .94)),
      var(--hero-image, none) center / cover;
  }

  .privacy-hero::after {
    background:
      linear-gradient(180deg, rgba(7, 5, 7, .72), rgba(7, 5, 7, .96)),
      var(--hero-image) center 28% / 330px auto no-repeat;
  }

  .page-hero h1 {
    font-size: 49px;
    line-height: .96;
  }

  html[lang="zh-Hans"] .page-hero h1,
  html[lang="ja"] .page-hero h1 {
    font-size: 43px;
  }

  .page-hero p:not(.eyebrow) {
    font-size: 15px;
  }

  .page-shell {
    width: min(100% - 28px, var(--page-width));
  }

  .section {
    padding: 84px 0;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .section-heading h2,
  .feature-copy h2,
  .pro-band h2,
  .contact-band h2 {
    font-size: 46px;
  }

  .feature-story,
  .feature-media,
  .sticker-stage,
  .capture-main {
    min-height: 430px;
  }

  .feature-copy,
  .capture-main,
  .pro-band,
  .contact-band {
    padding: 30px;
  }

  .feature-facts {
    grid-template-columns: 1fr;
  }

  .feature-facts span:nth-child(n) {
    padding: 14px 0;
    border-left: 0;
  }

  .feature-facts span + span {
    border-top: 1px solid var(--line);
  }

  .sticker-stage img {
    width: 100%;
  }

  .sticker-controls {
    padding: 8px;
    gap: 6px;
  }

  .sticker-controls button {
    padding: 0 5px;
    border-radius: 13px;
    font-size: 10px;
  }

  .capture-stack > article {
    min-height: 220px;
    padding: 28px;
  }

  .pro-band {
    gap: 30px;
  }

  .pro-price {
    width: 100%;
  }

  .faq-list summary {
    font-size: 23px;
  }

  .legal-summary {
    grid-template-columns: 1fr;
  }

  .legal-summary span + span {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .legal-toc {
    grid-template-columns: 1fr;
  }

  .site-footer nav {
    flex-wrap: wrap;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}