:root {
  color-scheme: light;
  --paper: #f7f1e8;
  --paper-strong: #fffaf3;
  --paper-muted: #eee5da;
  --ink: #29231f;
  --ink-soft: #6f655d;
  --caramel: #bd7135;
  --caramel-dark: #8b4e27;
  --mist: #dce2e2;
  --line: rgba(86, 64, 48, 0.14);
  --shadow: 0 24px 70px rgba(77, 48, 29, 0.13);
  --radius: 8px;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans SC", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  max-width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

body::selection {
  background: #edc89f;
  color: var(--ink);
}

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

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(20px, 4vw, 72px);
  background: rgba(247, 241, 232, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.site-header > *,
.hero-content > *,
.workspace > *,
.principles-grid > *,
.site-footer > * {
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 20px;
  font-weight: 800;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 38px);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--caramel-dark);
  transform: translateY(-1px);
}

.site-nav .nav-contact {
  padding: 9px 16px;
  border-radius: 999px;
  color: var(--paper-strong);
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: min(680px, calc(100vh - 72px));
  overflow: hidden;
  isolation: isolate;
}

.hero-media,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  z-index: -2;
  object-fit: cover;
  object-position: 50% 62%;
}

.hero-scrim {
  z-index: -1;
  background: rgba(29, 20, 14, 0.38);
}

.hero-content {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(70px, 10vh, 120px) 0 clamp(58px, 8vh, 92px);
  color: #fffaf3;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--caramel);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f2c89c;
}

.hero h1 {
  margin: 0;
  font-family: "STSong", "SimSun", serif;
  font-size: clamp(70px, 11vw, 136px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-subtitle {
  margin: 22px 0 0;
  font-size: clamp(23px, 3vw, 36px);
  font-weight: 800;
}

.hero-copy {
  max-width: 630px;
  margin: 16px 0 0;
  color: rgba(255, 250, 243, 0.82);
  font-size: clamp(16px, 1.6vw, 20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--ink);
  background: #fff7ed;
  box-shadow: 0 10px 32px rgba(31, 20, 12, 0.22);
}

.button-secondary {
  color: #fffaf3;
  background: rgba(255, 250, 243, 0.14);
  outline: 1px solid rgba(255, 250, 243, 0.42);
  outline-offset: -1px;
  backdrop-filter: blur(12px);
}

.hero-facts {
  display: grid;
  max-width: 720px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(55px, 9vh, 96px) 0 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(255, 250, 243, 0.22);
}

.hero-facts div {
  padding: 15px 18px;
  background: rgba(37, 26, 18, 0.42);
  backdrop-filter: blur(14px);
}

.hero-facts dt {
  color: rgba(255, 250, 243, 0.62);
  font-size: 12px;
}

.hero-facts dd {
  margin: 2px 0 0;
  font-size: 14px;
  font-weight: 800;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(72px, 10vw, 130px) 0;
}

.section-heading {
  display: grid;
  max-width: 820px;
  gap: 12px;
}

.section-heading.compact {
  max-width: 680px;
}

.section h2,
.legal-hero h1 {
  margin: 0;
  font-family: "STSong", "SimSun", serif;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-heading > p:last-child,
.workspace-copy > p,
.contact > div > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 5vw, 70px);
  margin-top: 62px;
  border-top: 1px solid var(--line);
}

.intro-grid article {
  padding-top: 28px;
}

.feature-index {
  color: var(--caramel);
  font-size: 13px;
  font-weight: 900;
}

.intro-grid h3 {
  margin: 12px 0 10px;
  font-size: 22px;
}

.intro-grid p {
  margin: 0;
  color: var(--ink-soft);
}

.workspace {
  display: grid;
  width: 100%;
  max-width: none;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.6fr);
  align-items: center;
  gap: clamp(42px, 7vw, 110px);
  padding-right: clamp(20px, 5vw, 88px);
  padding-left: clamp(20px, 5vw, 88px);
  background: var(--mist);
}

.workspace-copy {
  max-width: 470px;
}

.workspace-copy h2 {
  margin-bottom: 20px;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  font-weight: 700;
}

.check-list li::before {
  position: absolute;
  top: 10px;
  left: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--caramel);
  content: "";
}

.product-shot {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: var(--shadow);
}

.product-shot img {
  width: 100%;
  aspect-ratio: 1200 / 580;
  object-fit: cover;
  object-position: center top;
}

.product-shot figcaption {
  padding: 14px 18px;
  color: var(--ink-soft);
  font-size: 13px;
}

.principles-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(50px, 8vw, 120px);
  margin-top: 56px;
}

.principles-lead {
  margin: 0;
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 700;
  line-height: 1.55;
}

.principles-notes {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.principles-notes p {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}

.principles-notes strong {
  color: var(--ink);
}

.contact {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: clamp(70px, 8vw, 110px);
  padding-right: clamp(26px, 5vw, 64px);
  padding-left: clamp(26px, 5vw, 64px);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper-strong);
}

.contact .eyebrow {
  color: #e4ad74;
}

.contact h2 {
  font-size: clamp(34px, 4vw, 56px);
}

.contact > div > p:last-child {
  max-width: 620px;
  color: rgba(255, 250, 243, 0.65);
}

.contact-address {
  display: grid;
  flex: 0 0 auto;
  gap: 3px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: #fff7ed;
  color: var(--ink);
  transition: transform 180ms ease;
}

.contact-address:hover,
.contact-address:focus-visible {
  transform: translateY(-2px);
}

.contact-address span {
  color: var(--ink-soft);
  font-size: 12px;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 30px;
  padding: 30px clamp(20px, 4vw, 72px);
  border-top: 1px solid var(--line);
  background: var(--paper-muted);
}

.footer-main {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-main p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.footer-brand {
  font-size: 16px;
}

.footer-brand img {
  width: 30px;
  height: 30px;
}

.footer-links,
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--ink-soft);
  font-size: 13px;
}

.footer-links a:hover,
.footer-links a:focus-visible,
.filing-link:hover,
.filing-link:focus-visible {
  color: var(--caramel-dark);
}

.filing-link {
  text-decoration: underline;
  text-decoration-color: rgba(139, 78, 39, 0.38);
  text-underline-offset: 4px;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.filing-link:hover,
.filing-link:focus-visible {
  text-decoration-color: currentColor;
}

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

.not-found {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
  text-align: center;
}

.not-found img {
  width: 72px;
  margin: 0 auto 24px;
  border-radius: 8px;
}

.not-found h1 {
  margin: 0;
  font: 700 clamp(40px, 8vw, 80px) / 1 "STSong", "SimSun", serif;
}

.not-found p {
  margin: 16px 0 28px;
  color: var(--ink-soft);
}

.not-found .button-primary {
  color: var(--paper-strong);
  background: var(--ink);
}

.legal-header {
  position: relative;
}

.legal-main {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: 110px;
}

.legal-hero {
  padding: clamp(70px, 9vw, 120px) 0 42px;
  border-bottom: 1px solid var(--line);
}

.legal-hero p:last-child {
  margin: 16px 0 0;
  color: var(--ink-soft);
}

.legal-content {
  display: grid;
  gap: 0;
}

.legal-section {
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}

.legal-section h2 {
  margin: 0 0 14px;
  font-family: inherit;
  font-size: 22px;
}

.legal-section h3 {
  margin: 24px 0 8px;
  font-size: 17px;
}

.legal-section p,
.legal-section li {
  color: var(--ink-soft);
}

.legal-section ul,
.legal-section ol {
  margin: 12px 0 0;
  padding-left: 22px;
}

@media (max-width: 900px) {
  .site-nav a:not(.nav-contact) {
    display: none;
  }

  .hero {
    min-height: 650px;
  }

  .hero-content {
    display: flex;
    min-height: 650px;
    flex-direction: column;
    justify-content: center;
  }

  .hero-facts {
    width: 100%;
    margin-top: auto;
  }

  .intro-grid,
  .principles-grid {
    grid-template-columns: 1fr;
  }

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

  .workspace-copy {
    max-width: 720px;
  }

  .contact {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-address {
    align-self: flex-start;
  }

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

@media (max-width: 620px) {
  .site-header {
    min-height: 64px;
    padding-right: 14px;
    padding-left: 14px;
  }

  .brand {
    font-size: 18px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .site-nav .nav-contact {
    padding: 8px 12px;
    font-size: 13px;
  }

  .hero {
    min-height: 690px;
  }

  .hero-media {
    object-position: 43% center;
  }

  .hero-content {
    width: calc(100% - 32px);
    min-height: 690px;
  }

  .hero h1 {
    max-width: 100%;
    font-size: 52px;
    line-height: 1.04;
    overflow-wrap: anywhere;
  }

  .hero-subtitle {
    font-size: 24px;
    line-height: 1.35;
  }

  .hero-copy {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

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

  .hero-facts div {
    display: grid;
    grid-template-columns: minmax(64px, 0.45fr) minmax(0, 1fr);
    align-items: center;
    gap: 20px;
  }

  .hero-facts dd {
    min-width: 0;
    overflow-wrap: anywhere;
    text-align: right;
  }

  .hero-facts dt,
  .hero-facts dd {
    line-height: 1.45;
  }

  .section {
    width: min(calc(100% - 28px), 1180px);
  }

  .workspace {
    width: 100%;
    padding-right: 14px;
    padding-left: 14px;
  }

  .product-shot img {
    aspect-ratio: 4 / 3;
  }

  .principles-notes p {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .contact {
    width: calc(100% - 28px);
  }

  .contact-address {
    width: 100%;
  }

  .contact-address strong {
    overflow-wrap: anywhere;
  }

  .footer-main {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 420px) {
  .site-nav {
    display: none;
  }

  .hero h1 {
    font-size: 48px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}