:root {
  color-scheme: dark;
  --ink: #f7f2e8;
  --muted: #c8cedc;
  --night: #080d1c;
  --night-2: #101b36;
  --panel: #10182a;
  --panel-soft: #15213a;
  --line: #4d5b74;
  --blue: #a9ceff;
  --brass: #d8a653;
  --brass-strong: #f5c775;
  --max: 74rem;
  --radius: 1.35rem;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--night);
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 12%, rgba(216, 166, 83, 0.06) 0 0.08rem, transparent 0.1rem) 0 0 / 5rem 5rem,
    radial-gradient(circle at 12% 5%, rgba(54, 103, 181, 0.28), transparent 30rem),
    radial-gradient(circle at 90% 28%, rgba(126, 53, 30, 0.18), transparent 28rem),
    linear-gradient(180deg, #091022 0, var(--night) 42rem, #090d18 100%);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blue);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: #d5e8ff;
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--brass-strong);
  outline-offset: 0.22rem;
  border-radius: 0.25rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-180%);
  border-radius: 0.6rem;
  background: var(--ink);
  color: #111827;
  padding: 0.7rem 1rem;
  font-weight: 800;
}

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

.shell {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(113, 132, 164, 0.34);
  background: rgba(8, 13, 28, 0.9);
  backdrop-filter: blur(1rem);
  -webkit-backdrop-filter: blur(1rem);
}

.nav-wrap {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-block: 0.75rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand img {
  width: 2.55rem;
  height: 2.55rem;
  border-radius: 0.75rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
}

.site-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-radius: 0.65rem;
  color: var(--muted);
  padding: 0.5rem 0.72rem;
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: rgba(169, 206, 255, 0.12);
  color: var(--ink);
}

.site-nav .language-link {
  border: 1px solid var(--line);
  color: var(--brass-strong);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  min-height: 46rem;
  grid-template-columns: minmax(0, 1fr) minmax(19rem, 0.9fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5.75rem);
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.hero > * {
  min-width: 0;
}

.eyebrow,
.status {
  color: var(--brass-strong);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  max-width: 11ch;
  margin: 0.45rem 0 1.25rem;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero-copy {
  max-width: 43rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.4vw, 1.48rem);
  line-height: 1.55;
}

.release-note {
  margin: 1.15rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.release-note span {
  margin-right: 0.35rem;
  color: var(--brass-strong);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  padding: 0.68rem 1.2rem;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: #d7a149;
  background: linear-gradient(135deg, #a55423, #7d3717);
  box-shadow: 0 10px 28px rgba(165, 84, 35, 0.22);
}

.button:hover {
  border-color: var(--brass);
  color: #fff;
}

.hero-visual {
  position: relative;
  width: min(100%, 28rem);
  justify-self: center;
}

.hero-visual::before {
  position: absolute;
  z-index: -1;
  inset: 8% -15% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(55, 112, 199, 0.52), transparent 68%);
  content: "";
  filter: blur(0.4rem);
}

.hero-visual img {
  width: 100%;
  border: 1px solid #6e5a38;
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
}

.hero-visual--poster {
  transform: rotate(0.6deg);
}

.hero-visual--poster::after {
  position: absolute;
  z-index: -1;
  inset: 1rem -1rem -1rem 1rem;
  border: 1px solid rgba(245, 199, 117, 0.26);
  border-radius: 1.25rem;
  content: "";
}

.trust-strip {
  border-block: 1px solid rgba(216, 166, 83, 0.26);
  background: rgba(10, 16, 34, 0.74);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.trust-grid p {
  display: grid;
  gap: 0.15rem;
  min-height: 6.25rem;
  align-content: center;
  margin: 0;
  border-left: 1px solid rgba(113, 132, 164, 0.24);
  padding: 1rem clamp(0.8rem, 2.5vw, 1.6rem);
}

.trust-grid p:last-child {
  border-right: 1px solid rgba(113, 132, 164, 0.24);
}

.trust-grid strong {
  color: var(--brass-strong);
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: 1.08rem;
}

.trust-grid span {
  color: var(--muted);
  font-size: 0.86rem;
}

.section {
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.section.rule {
  border-top: 1px solid rgba(113, 132, 164, 0.28);
}

.section-heading {
  max-width: 50rem;
  margin-bottom: 2rem;
}

.compact-heading {
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin: 0.25rem 0 0.7rem;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
  text-wrap: balance;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-grid--six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.privacy-card,
.support-card {
  border: 1px solid rgba(118, 139, 177, 0.42);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(24, 36, 63, 0.92), rgba(15, 22, 38, 0.94));
  padding: 1.35rem;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.16);
}

.feature-card h3,
.support-card h2,
.privacy-card h2 {
  margin: 0 0 0.55rem;
  color: var(--ink);
  font-size: 1.12rem;
}

.feature-card .feature-index {
  margin: 0 0 1rem;
  color: var(--brass-strong);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.feature-card p,
.support-card p,
.privacy-card p {
  margin: 0;
  color: var(--muted);
}

.privacy-band {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: start;
  border: 1px solid #55647e;
  border-radius: calc(var(--radius) + 0.45rem);
  background: linear-gradient(145deg, #152847, #101728 65%);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.privacy-band h2 {
  margin: 0.2rem 0 1rem;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
}

.story-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(216, 166, 83, 0.34);
  border-radius: calc(var(--radius) + 0.2rem);
  background: linear-gradient(145deg, rgba(24, 36, 63, 0.92), rgba(12, 18, 32, 0.98));
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.24);
}

.story-card img {
  width: 100%;
  border-bottom: 1px solid rgba(216, 166, 83, 0.28);
}

.story-card figcaption {
  display: grid;
  gap: 0.45rem;
  padding: 1.25rem 1.35rem 1.45rem;
}

.story-card figcaption strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: 1.25rem;
}

.story-card figcaption span {
  color: var(--muted);
}

.final-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
  border: 1px solid rgba(216, 166, 83, 0.34);
  border-radius: calc(var(--radius) + 0.4rem);
  background:
    radial-gradient(circle at 85% 15%, rgba(59, 109, 190, 0.25), transparent 18rem),
    linear-gradient(145deg, #15243f, #0d1425 70%);
  padding: clamp(1.6rem, 4vw, 3.2rem);
}

.final-cta h2 {
  max-width: 18ch;
  margin: 0.25rem 0 0.8rem;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(2rem, 5vw, 3.3rem);
  line-height: 1.12;
}

.final-cta p {
  max-width: 48rem;
  margin-bottom: 0;
  color: var(--muted);
}

.final-cta .hero-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.check-list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.75rem;
  color: #e7ecf6;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--brass-strong);
  content: "✓";
  font-weight: 900;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.shot-card {
  margin: 0;
}

.shot-card img {
  width: 100%;
  height: auto;
  border: 1px solid #53627b;
  border-radius: 1.2rem;
  background: #000;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.shot-card figcaption {
  padding: 0.75rem 0.2rem 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.page-hero {
  max-width: 58rem;
  padding-block: clamp(3.5rem, 8vw, 6.5rem) 2.5rem;
}

.page-hero h1 {
  max-width: none;
  font-size: clamp(2.7rem, 7vw, 5rem);
}

.page-hero .lede {
  max-width: 48rem;
  margin: 0;
  color: var(--muted);
  font-size: 1.17rem;
}

.effective-date {
  margin-top: 1.2rem;
  color: var(--brass-strong);
  font-weight: 800;
}

.legal-layout,
.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 15rem;
  gap: clamp(2rem, 6vw, 5rem);
  padding-bottom: 6rem;
}

.legal-content,
.support-content {
  max-width: 48rem;
}

.legal-content section,
.support-content section {
  scroll-margin-top: 1rem;
  border-top: 1px solid rgba(113, 132, 164, 0.32);
  padding-block: 2rem;
}

.legal-content h2,
.support-content h2 {
  margin: 0 0 0.8rem;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.25;
}

.legal-content p,
.support-content p,
.support-content li {
  color: var(--muted);
}

.legal-content p:last-child,
.support-content p:last-child {
  margin-bottom: 0;
}

.legal-content strong,
.support-content strong {
  color: var(--ink);
}

.side-nav {
  align-self: start;
  position: sticky;
  top: 1rem;
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.side-nav strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--brass-strong);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.side-nav a {
  display: block;
  min-height: 2.75rem;
  padding-block: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.notice {
  border-left: 0.25rem solid var(--brass);
  background: rgba(228, 165, 104, 0.1);
  padding: 1rem 1.1rem;
}

.site-footer {
  border-top: 1px solid rgba(113, 132, 164, 0.34);
  background: rgba(5, 9, 18, 0.62);
}

.footer-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding-block: 2rem;
}

.footer-wrap p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem 1rem;
}

.footer-links a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
}

.not-found {
  display: grid;
  min-height: 72vh;
  place-items: center;
  text-align: center;
}

.not-found h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
  font-size: clamp(5rem, 18vw, 10rem);
  line-height: 1;
}

@media (max-width: 58rem) {
  .hero,
  .privacy-band,
  .final-cta__inner,
  .legal-layout,
  .support-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .hero-visual {
    width: min(88vw, 28rem);
  }

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

  .gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-grid p:nth-child(2) {
    border-right: 1px solid rgba(113, 132, 164, 0.24);
  }

  .trust-grid p:nth-child(n + 3) {
    border-top: 1px solid rgba(113, 132, 164, 0.24);
  }

  .final-cta .hero-actions {
    justify-content: flex-start;
  }

  .side-nav {
    display: none;
  }
}

@media (max-width: 42rem) {
  .shell {
    width: min(calc(100% - 1.25rem), var(--max));
  }

  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.55rem;
    padding-block: 0.8rem;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 0.2rem;
  }

  .site-nav a {
    min-height: 2.6rem;
    padding-inline: clamp(0.55rem, 2.5vw, 0.72rem);
    font-size: clamp(0.82rem, 3.7vw, 0.93rem);
  }

  .hero {
    gap: 2.75rem;
    padding-block: 3rem 3.75rem;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(2.85rem, 14vw, 4rem);
    letter-spacing: -0.045em;
    line-height: 1.02;
    overflow-wrap: normal;
    word-break: normal;
  }

  html[lang="zh-Hans"] .hero h1 {
    font-size: clamp(2.7rem, 13.5vw, 3.75rem);
    letter-spacing: -0.035em;
    line-height: 1.08;
    text-wrap: pretty;
  }

  .hero-copy {
    max-width: 100%;
    font-size: 1.06rem;
    overflow-wrap: break-word;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.7rem;
    width: 100%;
  }

  .button {
    width: 100%;
    min-width: 0;
    white-space: normal;
  }

  .hero-visual {
    width: min(100%, 24rem);
  }

  .feature-grid,
  .gallery,
  .story-grid {
    grid-template-columns: 1fr;
  }

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

  .trust-grid p,
  .trust-grid p:nth-child(2),
  .trust-grid p:last-child {
    border-right: 1px solid rgba(113, 132, 164, 0.24);
  }

  .trust-grid p + p {
    border-top: 1px solid rgba(113, 132, 164, 0.24);
  }

  .shot-card {
    width: min(100%, 22rem);
    margin-inline: auto;
  }

  .footer-wrap {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --muted: #eef2fa;
    --line: #a8b7d0;
  }

  .feature-card,
  .privacy-card,
  .support-card,
  .shot-card img {
    border-width: 2px;
  }
}