:root {
  color-scheme: light;
  --coral: #f8836b;
  --coral-strong: #ff7e5f;
  --orange: #feb47b;
  --peach: #fff5e0;
  --peach-deep: #ffdab9;
  --soft-pink: #fdefe6;
  --ice-blue: #f2f7fb;
  --ink: #22252f;
  --muted: #667085;
  --line: #e9ddd3;
  --surface: #ffffff;
  --surface-warm: #fffaf3;
  --shadow: 0 18px 54px rgba(83, 65, 55, 0.12);
  --focus: 0 0 0 3px rgba(248, 131, 107, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255, 245, 224, 0.96) 0%, rgba(255, 255, 255, 0.96) 42%, rgba(242, 247, 251, 0.92) 100%);
  color: var(--ink);
  font-family:
    ui-rounded,
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "PingFang TC",
    "PingFang SC",
    "Microsoft JhengHei",
    "Microsoft YaHei",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: geometricPrecision;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button,
a,
input,
textarea {
  -webkit-tap-highlight-color: transparent;
}

button,
a {
  cursor: pointer;
}

img,
svg {
  display: block;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  padding: 10px 14px;
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 40;
  top: 16px;
  left: 0;
  right: 0;
  padding: 0 20px;
  pointer-events: none;
}

.nav-shell {
  width: min(1160px, 100%);
  min-height: 64px;
  margin: 0 auto;
  padding: 10px 12px;
  border: 1px solid rgba(102, 112, 133, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px);
  box-shadow: 0 16px 38px rgba(83, 65, 55, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  pointer-events: auto;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0;
  min-height: 44px;
  border-radius: 8px;
  padding: 4px 6px;
  font-weight: 760;
}

.brand-link:focus-visible,
.nav-menu a:focus-visible,
.language-switcher button:focus-visible,
.menu-toggle:focus-visible,
.store-button:focus-visible,
.primary-button:focus-visible,
.text-link:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.brand-mark {
  width: 152px;
  height: auto;
  max-height: 40px;
  object-fit: contain;
}

.brand-name {
  font-size: 1.04rem;
  line-height: 1;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-menu a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 10px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  transition: color 180ms ease, background 180ms ease;
}

.nav-menu a:hover {
  background: rgba(248, 131, 107, 0.1);
  color: var(--ink);
}

.language-switcher {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: 6px;
  padding: 3px;
  border: 1px solid rgba(102, 112, 133, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
}

.language-switcher button {
  min-width: 40px;
  min-height: 32px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 750;
  transition: color 180ms ease, background 180ms ease;
}

.language-switcher button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(102, 112, 133, 0.18);
  border-radius: 8px;
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle__line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
}

main {
  overflow: hidden;
}

.hero-section {
  min-height: 92vh;
  padding: 136px 24px 84px;
  display: grid;
  align-items: center;
}

.hero-inner,
.section-inner,
.footer-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 68px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral-strong);
  font-size: 0.95rem;
  font-weight: 760;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.06;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: 4rem;
  font-weight: 800;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.75rem;
  font-weight: 790;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  font-weight: 760;
}

.hero-subtitle {
  max-width: 640px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1.55;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.store-button {
  min-width: 184px;
  min-height: 60px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(34, 37, 47, 0.14);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 9px 18px;
  box-shadow: 0 10px 26px rgba(83, 65, 55, 0.08);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.store-button:hover {
  transform: translateY(-2px);
  border-color: rgba(248, 131, 107, 0.42);
  box-shadow: 0 16px 36px rgba(83, 65, 55, 0.12);
}

.store-button--primary {
  background: var(--ink);
  color: #fff;
}

.store-button svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
  flex: 0 0 auto;
}

.store-button span {
  display: grid;
  line-height: 1.12;
}

.store-button small {
  color: currentColor;
  font-size: 0.75rem;
  opacity: 0.74;
}

.store-button strong {
  font-size: 1.04rem;
}

.hero-brand-panel {
  min-height: 430px;
  border-radius: 8px;
  border: 1px solid rgba(248, 131, 107, 0.22);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(255, 245, 224, 0.86)),
    linear-gradient(135deg, rgba(248, 131, 107, 0.13), rgba(76, 131, 255, 0.09));
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  padding: 52px;
}

.hero-logo {
  width: 220px;
  height: 220px;
  margin-bottom: 34px;
  filter: drop-shadow(0 22px 34px rgba(248, 131, 107, 0.22));
}

.hero-brand-text {
  text-align: center;
}

.hero-brand-text span {
  display: block;
  font-size: 2rem;
  font-weight: 820;
}

.hero-brand-text strong {
  display: block;
  max-width: 280px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 650;
}

.section-band {
  padding: 96px 24px;
  background: var(--surface);
}

.section-band--soft {
  background: rgba(255, 250, 243, 0.82);
}

.section-band--contrast {
  background: #22252f;
  color: rgba(255, 255, 255, 0.78);
}

.section-band--contrast h2,
.section-band--contrast h3 {
  color: #fff;
}

.section-band--contrast .eyebrow {
  color: #feb47b;
}

.section-band--download {
  background:
    linear-gradient(135deg, rgba(255, 245, 224, 0.95), rgba(242, 247, 251, 0.95));
}

.section-heading {
  max-width: 700px;
  margin-bottom: 44px;
}

.section-heading p:not(.eyebrow),
.about-copy p,
.comfort-list p,
.flow-item p,
.feature-card p,
.download-panel p,
.contact-layout p,
.site-footer p {
  color: var(--muted);
}

.section-band--contrast .section-heading p:not(.eyebrow),
.section-band--contrast .comfort-list p {
  color: rgba(255, 255, 255, 0.72);
}

.section-heading--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 264px;
  border: 1px solid rgba(102, 112, 133, 0.14);
  border-radius: 8px;
  background: #fff;
  padding: 26px;
  box-shadow: 0 12px 32px rgba(83, 65, 55, 0.07);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 22px;
  border-radius: 8px;
  background: var(--soft-pink);
  color: var(--coral-strong);
  display: grid;
  place-items: center;
}

.feature-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow-item {
  min-height: 220px;
  padding: 30px 26px;
  border-right: 1px solid var(--line);
}

.flow-item:last-child {
  border-right: 0;
}

.flow-item span {
  display: block;
  margin-bottom: 30px;
  color: var(--coral-strong);
  font-weight: 800;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.comfort-list {
  display: grid;
  gap: 14px;
}

.comfort-list article {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.06);
}

.about-copy {
  max-width: 620px;
  font-size: 1.08rem;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: center;
}

.download-panel h2 {
  margin-bottom: 12px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 0.75fr);
  gap: 72px;
}

.text-link {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  border-bottom: 1px solid rgba(248, 131, 107, 0.5);
  color: var(--coral-strong);
  font-weight: 760;
}

.contact-form {
  border: 1px solid rgba(102, 112, 133, 0.14);
  border-radius: 8px;
  background: #fff;
  padding: 28px;
  box-shadow: 0 16px 40px rgba(83, 65, 55, 0.08);
}

.form-field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.form-field label {
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 720;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid rgba(102, 112, 133, 0.22);
  border-radius: 8px;
  background: #fffaf6;
  color: var(--ink);
  padding: 12px 13px;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.form-field textarea {
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: rgba(248, 131, 107, 0.68);
  box-shadow: var(--focus);
  background: #fff;
}

.primary-button {
  width: 100%;
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--coral-strong), var(--orange));
  color: #fff;
  font-weight: 800;
  box-shadow: 0 14px 28px rgba(248, 131, 107, 0.22);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(248, 131, 107, 0.28);
}

.form-status {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer {
  padding: 44px 24px 56px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
}

.brand-link--footer {
  padding: 0;
}

.brand-link--footer .brand-mark {
  width: 142px;
  height: auto;
  max-height: 36px;
}

.site-footer p {
  max-width: 380px;
  margin: 12px 0 0;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
  max-width: 520px;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.footer-links a:hover {
  color: var(--ink);
}

@media (max-width: 1060px) {
  .hero-inner,
  .split-layout,
  .contact-layout,
  .download-panel {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    gap: 44px;
  }

  .hero-brand-panel {
    min-height: 360px;
  }

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

  .flow-item:nth-child(2) {
    border-right: 0;
  }

  .flow-item:nth-child(1),
  .flow-item:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 880px) {
  .site-header {
    top: 10px;
    padding: 0 12px;
  }

  .nav-shell {
    min-height: 60px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: fixed;
    top: 82px;
    left: 12px;
    right: 12px;
    max-height: calc(100vh - 102px);
    overflow: auto;
    border: 1px solid rgba(102, 112, 133, 0.16);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    padding: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu a {
    justify-content: flex-start;
    min-height: 46px;
    padding: 0 12px;
  }

  .language-switcher {
    width: 100%;
    margin-left: 0;
    justify-content: space-between;
  }

  .language-switcher button {
    flex: 1;
  }

  .hero-section {
    min-height: auto;
    padding: 116px 18px 68px;
  }

  .section-band {
    padding: 72px 18px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.12rem;
  }
}

@media (max-width: 640px) {
  .brand-name {
    font-size: 1rem;
  }

  .brand-mark {
    width: 136px;
    max-height: 36px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .hero-actions,
  .download-actions {
    width: 100%;
  }

  .store-button {
    width: 100%;
    justify-content: center;
  }

  .feature-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .flow-item,
  .flow-item:nth-child(2) {
    border-right: 0;
  }

  .flow-item:nth-child(3) {
    border-bottom: 1px solid var(--line);
  }

  .hero-brand-panel {
    min-height: 300px;
    padding: 34px 22px;
  }

  .hero-logo {
    width: 170px;
    height: 170px;
  }

  .footer-inner {
    flex-direction: column;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}