:root {
  --shadow-soft: 0 12px 36px rgba(25, 40, 55, .08);
}

.nav-links a.active {
  color: var(--ink);
  font-weight: 780;
}

.language-menu {
  position: relative;
  display: inline-flex;
}

.language-current {
  min-width: 116px;
}

.language-options {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 30;
  min-width: 148px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 14px 34px rgba(25, 40, 55, .14);
  display: none;
}

.language-menu.is-open .language-options {
  display: grid;
  gap: 4px;
}

.language-option,
.mobile-language-option {
  min-height: 38px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  padding: 8px 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 680;
  text-align: left;
  cursor: pointer;
}

.language-option:hover,
.mobile-language-option:hover,
.language-option.is-active,
.mobile-language-option.is-active {
  background: rgba(22, 112, 95, .08);
  color: var(--accent-strong);
}

[data-lang="en"],
[data-lang="zh-Hant"],
body.lang-en [data-lang="zh"],
body.lang-en [data-lang="zh-Hant"],
body.lang-hant [data-lang="zh"],
body.lang-hant [data-lang="en"] {
  display: none !important;
}

body:not(.lang-en):not(.lang-hant) [data-lang="zh"],
body.lang-en [data-lang="en"],
body.lang-hant [data-lang="zh-Hant"] {
  display: revert !important;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--ink);
  font: inherit;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 5px 16px rgba(25, 40, 55, .06);
}

.mobile-menu {
  display: none;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 252, 253, .96);
  backdrop-filter: blur(18px);
}

.mobile-menu-inner {
  width: min(100% - 28px, 1160px);
  margin: 0 auto;
  padding: 14px 0 18px;
  display: grid;
  gap: 8px;
}

.mobile-menu a {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px 12px;
  color: var(--ink);
  font: inherit;
  font-weight: 680;
  text-align: left;
}

.mobile-language-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 4px;
}

.mobile-language-option {
  min-height: 44px;
  border: 1px solid var(--line);
  background: white;
  text-align: center;
}

.mobile-language-option.is-active {
  border-color: rgba(22, 112, 95, .42);
}

.mobile-menu a.active {
  border-color: rgba(22, 112, 95, .42);
  background: rgba(22, 112, 95, .07);
  color: var(--accent-strong);
}

.mobile-menu.is-open {
  display: block;
}

body[data-page="privacy"] .hero-inner,
body[data-page="terms"] .hero-inner {
  width: min(1040px, calc(100% - 40px));
  padding: 60px 0 48px;
}

body[data-page="privacy"] h1,
body[data-page="terms"] h1 {
  font-size: clamp(36px, 5vw, 56px);
}

body[data-page="privacy"] .policy-inner,
body[data-page="terms"] .terms-inner {
  width: min(900px, calc(100% - 40px));
}

body[data-page="home"] .hero {
  min-height: auto;
}

body[data-page="home"] .hero-inner {
  grid-template-columns: 1fr;
  gap: 46px;
  align-items: start;
}

body[data-page="home"] .hero-inner > div:first-child {
  max-width: 820px;
}

body[data-page="home"] .software-panel {
  width: min(100%, 980px);
}

body[data-page="home"] .product-suite {
  min-height: auto;
}

body[data-page="contact"] .contact-grid {
  grid-template-columns: 1fr;
  gap: 34px;
}

body[data-page="contact"] .contact-grid > .copy {
  max-width: 820px;
}

body[data-page="contact"] .form-card {
  width: min(100%, 820px);
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
}

body[data-page="contact"] .form-card h2 {
  font-size: clamp(26px, 3vw, 36px);
}

body[data-page="contact"] .form-card {
  margin: 0;
}

body[data-page="privacy"] main,
body[data-page="terms"] main {
  position: relative;
}

.legal-layout {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px minmax(0, 900px);
  gap: 40px;
  align-items: start;
}

.legal-toc {
  position: sticky;
  top: 94px;
  padding: 72px 0 0;
}

.legal-toc-title {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 780;
}

.legal-toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.legal-toc a:hover {
  color: var(--ink);
}

.back-to-top {
  display: inline-flex;
  margin: 34px 0 0;
  color: var(--accent-strong);
  font-weight: 760;
}

.radio-option:has(input:checked),
.radio-option.is-selected {
  border-color: rgba(22, 112, 95, .58);
  background: rgba(22, 112, 95, .07);
  color: var(--accent-strong);
}

.button.is-loading {
  opacity: .72;
  cursor: wait;
}

.form-message.success {
  color: var(--accent-strong);
}

@media (max-width: 900px) {
  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    gap: 10px;
  }
}

@media (max-width: 520px) {
  .mobile-language-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  body[data-page="privacy"] .hero-inner,
  body[data-page="terms"] .hero-inner,
  body[data-page="privacy"] .policy-inner,
  body[data-page="terms"] .terms-inner {
    width: min(100% - 28px, 900px);
  }

  body[data-page="privacy"] .hero-inner,
  body[data-page="terms"] .hero-inner {
    padding: 46px 0 38px;
  }

  .legal-layout {
    width: min(100% - 28px, 900px);
    display: block;
  }

  .legal-toc {
    display: none;
  }
}

@media (max-width: 1024px) {
  .legal-layout {
    width: min(100% - 40px, 900px);
    display: block;
  }

  .legal-toc {
    display: none;
  }
}