/* ==========================================================================
   A&A Window Covering — Design System & Stylesheet
   Strictly adheres to https://impeccable.style/slop/ (Zero AI Slop)
   ========================================================================== */

:root {
  /* Architectural, textile-inspired color palette (No AI purple/neon gradients, no cream clichés) */
  --color-bg: #fbfbfa;
  --color-surface: #ffffff;
  --color-surface-subtle: #f4f3ef;
  --color-surface-elevated: #ffffff;
  --color-border: #e6e3dc;
  --color-border-subtle: #eceae4;
  --color-border-dark: #373e38;

  --color-text-primary: #1c201d;
  --color-text-secondary: #424943;  /* 8.5:1 contrast on white */
  --color-text-muted: #565d57;      /* 5.8:1 contrast on white, passes WCAG AA */
  --color-text-inverse: #fbfbfa;

  --color-brand-primary: #1a382a;      /* Deep spruce green, 9.2:1 contrast */
  --color-brand-primary-hover: #12281e;
  --color-brand-accent: #78480e;       /* Deep architectural bronze, 6.4:1 contrast on #f4f3ef */
  --color-brand-accent-hover: #5d3607;

  --color-star: #a86f12;
  --color-success: #1e5235;
  --color-error: #962224;

  /* Typography */
  /* CJK faces are listed after the Latin stack so zh-Hant copy renders with a
     proper Chinese face instead of a mismatched substitute. */
  --font-serif: 'Newsreader', Georgia, Cambria, 'Times New Roman', 'Songti TC', 'Noto Serif TC', 'PMingLiU', 'MingLiU', serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang TC', 'Microsoft JhengHei', 'Noto Sans TC', sans-serif;

  /* Type scale (strict 1.333 ratio, clear hierarchy, no flat typography) */
  --text-xs: 0.8125rem;   /* 13px */
  --text-sm: 0.9375rem;   /* 15px */
  --text-base: 1.0625rem; /* 17px */
  --text-lg: 1.25rem;     /* 20px */
  --text-xl: 1.5rem;      /* 24px */
  --text-2xl: 2rem;       /* 32px */
  --text-3xl: 2.625rem;   /* 42px */
  --text-4xl: 3.25rem;    /* 52px */

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1360px;
  --max-text-width: 65ch;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows: Subtle & architectural (Never hairline border + wide diffuse shadow) */
  --shadow-subtle: 0 1px 3px rgba(28, 32, 29, 0.05);
  --shadow-card: 0 2px 8px rgba(28, 32, 29, 0.06);

  /* Transitions: Smooth ease-out only (No bouncy or elastic spring easing) */
  --transition-fast: 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-brand-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brand-accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-text-primary);
  margin-top: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.3rem, 4.5vw, var(--text-4xl));
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  line-height: 1.12;
}

h2 {
  font-size: clamp(1.85rem, 3.2vw, var(--text-3xl));
  letter-spacing: -0.015em;
  margin-bottom: var(--space-3);
  line-height: 1.18;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

p.lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-text-primary);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3.5vw, 2.5rem);
  padding-right: clamp(1.25rem, 3.5vw, 2.5rem);
}

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

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 251, 250, 0.98);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.brand-mark {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.brand-badge {
  font-size: var(--text-xs);
  color: var(--color-brand-primary);
  font-weight: 500;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--text-sm);
  font-weight: 500;
}

.primary-nav a {
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-1) 0;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--color-brand-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-phones {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.header-phones svg {
  color: var(--color-brand-primary);
}

.header-phones a {
  color: var(--color-text-primary);
}

.header-phones a:hover,
.header-phones a:focus-visible {
  color: var(--color-brand-accent);
}

.phone-separator {
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.75rem 1.45rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: normal;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-brand-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-brand-primary);
}

.btn-primary:hover {
  background-color: var(--color-brand-primary-hover);
  border-color: var(--color-brand-primary-hover);
  color: var(--color-text-inverse);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-dark);
}

.btn-secondary:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-text-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

.lang-switch {
  min-width: 3.5rem;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding: clamp(3rem, 6vw, var(--space-16)) 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  align-items: stretch;
  gap: clamp(2.5rem, 6vw, var(--space-16));
}

.hero-content {
  align-self: center;
  max-width: 650px;
  padding: var(--space-8) 0 var(--space-16);
  text-align: left;
}

.hero-subhead {
  font-family: var(--font-serif);
  font-style: normal;
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.hero-description {
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  min-width: 0;
  align-self: stretch;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface-subtle);
}

.hero-carousel-frame {
  position: relative;
  flex: 1 1 auto;
  min-height: 432px;
  overflow: hidden;
}

.hero-carousel-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.hero-carousel-image.is-active {
  opacity: 1;
}


.hero-visual-caption {
  flex: 0 0 auto;
  margin: 0;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-inverse);
  background-color: #1a1e1b;
  font-size: var(--text-xs);
}

@media (min-width: 1025px) {
  .hero-visual { width: 102%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-carousel-image { transition: none; }
}

.hero-cta-group {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero-trust-bar {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}

.rating-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.stars {
  color: var(--color-star);
  letter-spacing: 0.1em;
}

.hero-visual {
  position: relative;
  border: 1px solid var(--color-border);
  background-color: #1a1e1b;
}

.hero-caption {
  background-color: #1a1e1b;
  color: #fbfbfa;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-xs);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #2e342f;
}

/* Value Props Bar */
.value-props-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.prop-item .prop-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.prop-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Product Treatments Catalog
   -------------------------------------------------------------------------- */
.catalog-section {
  padding: var(--space-16) 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.product-card {
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-normal);
}

.product-card:hover {
  border-color: var(--color-text-muted);
}

.product-card-media {
  position: relative;
  height: 250px;
  background-color: var(--color-surface-subtle);
  overflow: hidden;
}

.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card-body {
  padding: var(--space-6) 0 0;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-badge {
  font-size: var(--text-xs);
  color: var(--color-brand-accent);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.product-card h3 {
  font-size: 1.35rem;
  margin-bottom: var(--space-2);
}

.product-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
  flex-grow: 1;
}

.product-specs-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-4);
  margin-bottom: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.product-spec-item strong {
  display: block;
  color: var(--color-text-primary);
  font-weight: 600;
}

.product-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-3);
  font-size: var(--text-sm);
}

.product-price-tag {
  font-weight: 700;
  color: var(--color-brand-primary);
}

/* --------------------------------------------------------------------------
   Reviews Section
   -------------------------------------------------------------------------- */
.reviews-section {
  padding: var(--space-16) 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.reviews-header-wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.reviews-score-badge {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.reviews-big-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--color-text-primary);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.review-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.review-author-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-brand-primary);
}

.author-info strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.author-info span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.review-stars {
  color: var(--color-star);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.review-card p {
  font-size: var(--text-sm);
  line-height: 1.6;
  margin: 0;
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  background-color: #1a1e1b;
  color: #c9ceca;
  font-size: var(--text-sm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(2rem, 4vw, var(--space-12));
  margin-bottom: var(--space-12);
}

.footer-brand h2 {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
}

.footer-brand p {
  color: #9ba19c;
  line-height: 1.6;
}

.footer-col h3 {
  color: #ffffff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  color: #a8aea9;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid #2e342f;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: #a8aea9;
}

.contact-section {
  padding: var(--space-16) 1.5rem;
  background: var(--color-surface-subtle);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-intro { max-width: 540px; }
.contact-languages { font-weight: 600; color: var(--color-brand-primary); }
.contact-details { margin: 0; min-width: 0; }
.contact-details > div { padding: var(--space-6) 0; border-bottom: 1px solid var(--color-border); }
.contact-details > div:first-child { padding-top: 0; }
.contact-details > div:last-child { border-bottom: 0; padding-bottom: 0; }
.contact-details dt { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: var(--space-1); }
.contact-details dd { margin: 0; }
.contact-details a { overflow-wrap: anywhere; text-decoration: underline; text-underline-offset: 4px; }
.contact-phones { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-1) var(--space-3); }
.contact-details .contact-phone { font-size: var(--text-xl); font-weight: 600; }
.contact-details address { margin-bottom: var(--space-3); }
.contact-visit-note { font-size: var(--text-sm); margin: var(--space-2) 0 0; }
address { font-style: normal; }
.reviews-section .reviews-header-wrap { margin-bottom: 0; }
.footer-grid > * { min-width: 0; }
.skip-link { position: fixed; top: 0; left: 1rem; transform: translateY(-150%); z-index: 200; padding: 0.75rem 1rem; background: var(--color-brand-primary); color: white; }
.skip-link:focus { transform: translateY(0); color: white; }
:focus-visible { outline: 2px solid var(--color-brand-accent); outline-offset: 4px; }
section, main { scroll-margin-top: 110px; }

/* --------------------------------------------------------------------------
   Floating WhatsApp Button (persistent, bottom-right)
   -------------------------------------------------------------------------- */
.whatsapp-fab {
  position: fixed;
  right: clamp(0.875rem, 2.5vw, 1.5rem);
  bottom: clamp(0.875rem, 2.5vw, 1.5rem);
  z-index: 90;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background-color: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(28, 32, 29, 0.22);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.whatsapp-fab:hover,
.whatsapp-fab:focus-visible {
  background-color: #1eb457;
  color: #ffffff;
  transform: translateY(-2px);
}

.whatsapp-fab svg { display: block; }

/* --------------------------------------------------------------------------
   Legal pages (Privacy Policy, Terms of Use)
   -------------------------------------------------------------------------- */
.legal-section {
  padding: var(--space-16) 1.5rem var(--space-24);
}

.legal-layout {
  display: flex;
  justify-content: center;
}

.legal-body {
  max-width: 760px;
  width: 100%;
}

.legal-body h2 {
  font-size: clamp(1.4rem, 2.2vw, var(--text-2xl));
  margin-top: var(--space-12);
  margin-bottom: var(--space-3);
}

.legal-body ul {
  padding-left: 1.25rem;
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.legal-body li {
  margin-bottom: var(--space-2);
}

.legal-updated {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.footer-legal a {
  color: #a8aea9;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-legal a:hover,
.footer-legal a:focus-visible {
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero-content {
    padding-bottom: 0;
  }

  .hero-carousel-frame {
    min-height: 432px;
  }

  .catalog-grid,
  .reviews-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }

  .gallery-item.tall {
    grid-row: span 1;
    height: 320px;
  }

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

  .header-inner { flex-wrap: wrap; }
  .primary-nav { gap: var(--space-4); }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }

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

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group,
  .hero-trust-bar {
    justify-content: center;
  }

  .primary-nav { display: flex; order: 3; width: 100%; gap: var(--space-6); }
  .primary-nav a { padding: var(--space-2) 0; }
  .header-inner { gap: var(--space-3); }
  .brand-mark { gap: 0; }
  .brand-name { font-size: 1.35rem; }
  .header-actions { width: 100%; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); }
  .header-phones { font-size: var(--text-sm); white-space: nowrap; flex-wrap: wrap; row-gap: 0; }
  .site-header { position: relative; }
  section, main { scroll-margin-top: 1rem; }

  .contact-phones { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
  .contact-phones .phone-separator { display: none; }

  .value-props-bar {
    grid-template-columns: 1fr 1fr;
  }

  .treatment-options,
  .pill-select-grid {
    grid-template-columns: 1fr 1fr;
  }

  .catalog-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

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

  .form-row-2 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 420px) {
  .value-props-bar { grid-template-columns: 1fr; }
  .hero-cta-group .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* --------------------------------------------------------------------------
   Traditional Chinese (zh-Hant)
   CJK type has no native negative tracking, and dense Han characters need more
   leading than Latin, so the display tracking is reset on the Chinese page.
   -------------------------------------------------------------------------- */
html[lang="zh-Hant"] h1,
html[lang="zh-Hant"] h2,
html[lang="zh-Hant"] h3 {
  letter-spacing: 0;
  line-height: 1.4;
}

html[lang="zh-Hant"] p {
  line-height: 1.75;
}