/* ============================================
   CareerForge 鑄途 — Apple-Inspired Design System
   v2.0 — Apple web designer overhaul
   Warm off-white · Deep ink blue · SF Pro fallback
   ============================================ */

:root {
  /* ===== Surfaces ===== */
  --surface-canvas:   #FBFAF7;
  --surface-elevated: #FFFFFF;
  --surface-sunken:   #F4F2EC;
  --surface-inverse:  #1D1D1F;

  /* ===== Ink scale ===== */
  --ink-900: #1D1D1F;
  --ink-700: #424245;
  --ink-500: #6E6E73;
  --ink-300: #AEAEB2;
  --ink-100: #D2D2D7;

  /* ===== Accent — deep ink blue ===== */
  --accent:        #0A4D68;
  --accent-hover:  #073D54;
  --accent-soft:   #E8EFF2;

  /* ===== Legacy aliases (back-compat) ===== */
  --bg: var(--surface-canvas);
  --bg-subtle: var(--surface-sunken);
  --bg-card: var(--surface-elevated);
  --border: var(--ink-100);
  --border-strong: var(--ink-900);
  --text-primary: var(--ink-900);
  --text-secondary: var(--ink-700);
  --text-muted: var(--ink-500);
  --text-inverse: #FFFFFF;
  --ink: var(--surface-inverse);

  /* ===== Typography ===== */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text',
               'Noto Sans SC', 'Noto Sans TC', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display',
                  'PingFang SC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;

  /* ===== Layout ===== */
  --container:        1240px;
  --container-narrow: 880px;
  --container-wide:   1440px;
  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 980px;

  --sp-1:  4px;  --sp-2:  8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 20px;  --sp-6: 24px;  --sp-8: 32px; --sp-10: 40px;
  --sp-12: 48px; --sp-16: 64px; --sp-20: 80px; --sp-24: 96px;
  --sp-32: 128px; --sp-40: 160px;

  /* ===== Shadows ===== */
  --shadow-sm: 0 1px 2px rgba(29, 29, 31, 0.04);
  --shadow:    0 4px 16px rgba(29, 29, 31, 0.06);
  --shadow-md: 0 12px 32px rgba(29, 29, 31, 0.08);
  --shadow-lg: 0 24px 48px -16px rgba(29, 29, 31, 0.12);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--surface-canvas);
  color: var(--ink-900);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'kern', 'liga', 'calt';
}
img, picture, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--sp-6); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--sp-6); }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--sp-6); }

/* ===== Typography scale (Apple-style) ===== */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--ink-900);
  letter-spacing: -0.022em;
  line-height: 1.1;
  font-weight: 600;
}
.display {
  font-size: clamp(3rem, 7vw, 5.75rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.04;
}
h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 3.8vw, 3rem);  font-weight: 600; letter-spacing: -0.025em; }
h3 { font-size: clamp(1.375rem, 2.2vw, 1.75rem); font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 600; }

p { color: var(--ink-700); }
.lead {
  font-size: clamp(1.1875rem, 1.6vw, 1.375rem);
  line-height: 1.45;
  color: var(--ink-700);
  font-weight: 400;
  letter-spacing: -0.011em;
}
.prose { max-width: 65ch; }

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin-bottom: var(--sp-4);
}
.text-muted { color: var(--ink-500); }
.text-center { text-align: center; }

/* CJK line-height adjustments */
:lang(zh-Hant) body, :lang(zh-Hant) p, :lang(zh-Hant) h1, :lang(zh-Hant) h2, :lang(zh-Hant) h3,
:lang(zh-Hans) body, :lang(zh-Hans) p, :lang(zh-Hans) h1, :lang(zh-Hans) h2, :lang(zh-Hans) h3 {
  line-height: 1.7;
}
:lang(zh-Hant) .lead, :lang(zh-Hans) .lead { line-height: 1.6; }

/* ===== Lang switcher ===== */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: var(--surface-sunken);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-pill);
  padding: 4px;
  font-size: 0.8125rem;
  margin-right: var(--sp-3);
}
.lang-switcher a {
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  color: var(--ink-700);
  font-weight: 500;
  transition: all 0.15s;
}
.lang-switcher a:hover { color: var(--ink-900); }
.lang-switcher a.active {
  background: var(--ink-900);
  color: #fff;
}

/* ===== Header / Nav (Apple-style, sticky + frosted glass) ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 247, 0.82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--ink-100);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 32px; }
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 28px; width: auto; }
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-menu a {
  font-size: 0.875rem;
  color: var(--ink-700);
  font-weight: 400;
  padding: 8px 0;
  position: relative;
  transition: color 0.15s;
}
.nav-menu a:hover { color: var(--ink-900); }
.nav-menu a.active { color: var(--ink-900); font-weight: 500; }

.nav-actions { display: flex; align-items: center; }
.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
}
.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 1.5px;
  background: var(--ink-900);
  transition: all 0.2s;
  display: block;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: 64px; right: 0;
  width: 100%; max-width: 380px;
  height: calc(100vh - 64px);
  background: var(--surface-canvas);
  padding: 40px 32px;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 99;
  display: flex; flex-direction: column; gap: 4px;
  border-left: 1px solid var(--ink-100);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--ink-900);
  padding: 14px 0;
  border-bottom: 1px solid var(--ink-100);
}
.mobile-menu-cta {
  margin-top: 24px;
  background: var(--accent);
  color: #fff !important;
  text-align: center;
  border-radius: var(--radius-pill);
  padding: 16px !important;
  border: none !important;
}
.mobile-lang {
  display: flex; gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--ink-100);
}
.mobile-lang a {
  font-size: 0.875rem !important;
  padding: 8px 14px !important;
  border-radius: var(--radius-pill);
  background: var(--surface-sunken);
  border: none !important;
  color: var(--ink-700) !important;
}
.mobile-lang a.active { background: var(--ink-900); color: #fff !important; }

@media (max-width: 880px) {
  .nav-menu { display: none; }
  .lang-switcher { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

/* ===== Buttons (Apple-style pill) ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.2s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: transparent;
  color: var(--ink-900);
  border: 1px solid var(--ink-900);
}
.btn-secondary:hover { background: var(--ink-900); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink-900); padding: 14px 16px; }
.btn-ghost:hover { color: var(--accent); }
.btn-sm { padding: 10px 18px; font-size: 0.875rem; }
.btn-lg { padding: 18px 36px; font-size: 1rem; }
.btn-xl { padding: 20px 36px; font-size: 1.0625rem; border-radius: var(--radius-pill); }

/* ===== Hero (iPhone Pro product page treatment) ===== */
.hero {
  padding: 120px 0 0;
  background: var(--surface-canvas);
  position: relative;
  text-align: center;
  overflow: hidden;
}
.hero-inner { max-width: 980px; margin: 0 auto; padding: 0 var(--sp-6); position: relative; z-index: 1; }
.hero h1 { margin-bottom: 28px; }
.hero .lead { margin-bottom: 48px; max-width: 720px; margin-left: auto; margin-right: auto; }
.hero-actions {
  display: flex; gap: 16px;
  justify-content: center; flex-wrap: wrap;
}
.hero-visual {
  margin: 96px auto 0;
  max-width: var(--container);
  aspect-ratio: 16 / 7;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #F4F2EC 0%, #E8EFF2 50%, #DCE7EB 100%);
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(10, 77, 104, 0.06), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(184, 134, 11, 0.04), transparent 50%);
}
.hero-visual object,
.hero-visual img {
  position: relative;
  z-index: 1;
  max-width: 80%;
  max-height: 80%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: 980px;
  margin: 96px auto 0;
  padding: 64px 0 120px;
  border-top: 1px solid var(--ink-100);
}
.hero-stat { text-align: center; }
.hero-stat .num {
  display: block;
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--ink-900);
  line-height: 1;
}
.hero-stat .label {
  display: block;
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--ink-500);
}

@media (max-width: 720px) {
  .hero { padding: 80px 0 0; }
  .hero-visual { aspect-ratio: 4 / 5; margin-top: 64px; border-radius: var(--radius-lg); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 40px 0; padding-bottom: 80px; }
}

/* ===== Sections ===== */
.section { padding: 160px 0; }
.section-tight { padding: 96px 0; }
.section-airy { padding: 200px 0; }
.section-alt { background: var(--surface-sunken); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 96px;
}
.section-head h2 { margin-bottom: var(--sp-4); }
.section-head p { color: var(--ink-700); font-size: 1.0625rem; }

/* ===== Service cards (Apple-style with SVG icons) ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 980px) {
  .services-grid { grid-template-columns: 1fr; gap: 24px; }
}

.service-card {
  display: block;
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  transition: all 0.3s ease;
  position: relative;
  text-decoration: none;
  color: inherit;
}
.service-card:hover {
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-card .icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 32px;
}
.service-card .icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 1.375rem; margin-bottom: 12px; }
.service-card p { font-size: 0.9375rem; line-height: 1.65; margin-bottom: 24px; color: var(--ink-700); }
.service-card .arrow {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-size: 0.875rem; font-weight: 500;
  color: var(--accent);
  transition: gap 0.2s;
}
.service-card:hover .arrow { gap: var(--sp-3); }

/* ===== Team cards (honest advisor pattern) ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 980px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .team-grid { grid-template-columns: 1fr; } }

.team-card {
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.team-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.team-mark {
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 1px solid var(--ink-300);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.team-mark .mark-text {
  font-size: 1rem; font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}
.team-mark .mark-bar {
  position: absolute;
  bottom: -3px; left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.team-role {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.team-card h4 { font-size: 1.375rem; margin-bottom: 12px; }
.team-bio {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-700);
  flex: 1;
  margin-bottom: 24px;
}
.team-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--ink-100);
  border-bottom: 1px solid var(--ink-100);
  margin-bottom: 24px;
}
.team-stats dt {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin-bottom: 4px;
}
.team-stats dd {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--ink-900);
  letter-spacing: -0.02em;
  line-height: 1;
}
.team-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--accent);
  align-self: flex-start;
  transition: gap 0.2s;
}
.team-cta:hover { gap: 10px; }

/* ===== Case study cards (metric-led) ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 980px) { .cases-grid { grid-template-columns: 1fr; } }

.case-card {
  background: var(--surface-elevated);
  padding: 48px 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-100);
  display: flex;
  flex-direction: column;
  min-height: 380px;
  transition: all 0.3s;
  position: relative;
}
.case-card:hover {
  border-color: var(--ink-900);
  transform: translateY(-4px);
}
.case-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  align-self: flex-start;
  padding: 6px 12px;
  background: var(--accent-soft);
  border-radius: var(--radius-pill);
}
.case-headline {
  font-size: clamp(1.5rem, 2.2vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--ink-900);
  margin-bottom: 24px;
}
.case-caption {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-700);
  flex: 1;
  margin-bottom: 32px;
}
.case-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-900);
  border-bottom: 1px solid var(--ink-300);
  padding-bottom: 4px;
  align-self: flex-start;
  transition: all 0.2s;
}
.case-link:hover { border-color: var(--accent); color: var(--accent); }
.case-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 1.125rem;
  margin-bottom: 24px;
}

/* Legacy case card styles (for cases page list) */
.case-head {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 20px;
}
.case-meta .name {
  display: block;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink-900);
}
.case-meta .from {
  display: block;
  font-size: 0.8125rem;
  color: var(--ink-500);
  margin-top: 2px;
}
.quote {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--ink-700);
  margin-bottom: 24px;
  padding-left: 16px;
  border-left: 2px solid var(--accent-soft);
}
.case-result {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding: 16px;
  background: var(--surface-sunken);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--ink-700);
}
.case-result strong { color: var(--ink-900); font-weight: 600; }
.case-result .arrow { color: var(--accent); }

/* ===== Schools grid (HK schools + universities) ===== */
.schools-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.school-pill {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-900);
  transition: all 0.2s;
}
.school-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.school-cluster {
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  margin-bottom: 32px;
}
.school-cluster-head {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--ink-100);
}
.school-cluster-head h3 { font-size: 1.5rem; }
.school-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 32px;
}
.school-list li {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 0;
}
.school-rank {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-500);
  letter-spacing: 0.1em;
  width: 24px;
}
.school-name {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ink-900);
}

/* ===== Form (3-field Apple style) ===== */
.form-stack {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 600px;
  margin: 0 auto;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; }
.field.full { grid-column: 1 / -1; }
.field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-900);
  margin-bottom: 10px;
}
.field .optional {
  color: var(--ink-500);
  font-weight: 400;
  font-size: 0.8125rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 16px 20px;
  background: var(--surface-sunken);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 1.0625rem;
  color: var(--ink-900);
  transition: all 0.15s;
  font-family: inherit;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  background: var(--surface-elevated);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(10, 77, 104, 0.08);
}
.field textarea { resize: vertical; min-height: 100px; line-height: 1.55; }
.field select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23424245' stroke-width='1.5' d='M4 6l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 44px; }
.form-submit { width: 100%; margin-top: 8px; }
.form-foot {
  font-size: 0.75rem;
  color: var(--ink-500);
  text-align: center;
  margin-top: 8px;
}

/* ===== Contact section ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; gap: 48px; } }
.contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}
.contact-channel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.contact-channel:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.contact-channel .ch-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-channel .ch-icon svg { width: 20px; height: 20px; }
.contact-channel .ch-label {
  font-size: 0.75rem;
  color: var(--ink-500);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}
.contact-channel .ch-value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-900);
}

/* ===== Stats banner ===== */
.stats-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  margin: var(--sp-12) auto;
}
.stat {
  text-align: center;
  padding: var(--sp-6);
  border-right: 1px solid var(--ink-100);
}
.stat:last-child { border-right: none; }
.stat .num {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  line-height: 1;
}
.stat .label {
  display: block;
  margin-top: 8px;
  font-size: 0.8125rem;
  color: var(--ink-500);
}
@media (max-width: 720px) {
  .stats-banner { grid-template-columns: repeat(2, 1fr); padding: var(--sp-4); }
  .stat { padding: var(--sp-4); border-bottom: 1px solid var(--ink-100); }
  .stat:nth-child(odd) { border-right: 1px solid var(--ink-100); }
  .stat:nth-child(even) { border-right: none; }
  .stat:nth-last-child(-n+2) { border-bottom: none; }
}

/* ===== Feature grid (split content + visual) ===== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-grid.flip { direction: rtl; }
.feature-grid.flip > * { direction: ltr; }
.feature-content .lead { margin-bottom: 32px; }
.feature-list { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
.feature-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 1rem; color: var(--ink-700); line-height: 1.5; }
.feature-list .check {
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
}
.feature-visual {
  background: linear-gradient(135deg, var(--surface-sunken), var(--accent-soft));
  border-radius: var(--radius-xl);
  padding: 48px;
  min-height: 360px;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
}
.feature-visual object { width: 100%; height: auto; border-radius: 16px; }
.placeholder {
  color: var(--ink-500);
  font-size: 0.875rem;
  line-height: 1.6;
}
@media (max-width: 880px) {
  .feature-grid { grid-template-columns: 1fr; gap: 48px; }
  .feature-grid.flip { direction: ltr; }
  .feature-visual { padding: 32px; min-height: 240px; }
}

/* ===== CTA banner ===== */
.cta-banner {
  text-align: center;
  padding: 96px 32px;
  background: var(--surface-inverse);
  border-radius: var(--radius-xl);
  color: #F5F5F7;
}
.cta-banner .eyebrow { color: #A1A1A6; }
.cta-banner h2 { color: #F5F5F7; margin-bottom: 16px; }
.cta-banner p { color: #A1A1A6; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-banner .actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-banner .btn-primary { background: #F5F5F7; color: var(--surface-inverse); }
.cta-banner .btn-primary:hover { background: #FFFFFF; }
.cta-banner .btn-ghost { color: #F5F5F7; }
.cta-banner .btn-ghost:hover { color: #FFFFFF; }

/* ===== Page hero (subpages) ===== */
.page-hero {
  padding: 120px 0 64px;
  text-align: center;
  background: var(--surface-canvas);
}
.page-hero h1 { margin-bottom: 24px; }
.page-hero p { max-width: 720px; margin: 0 auto; font-size: 1.125rem; color: var(--ink-700); }

/* ===== Footer (dark, premium) ===== */
.site-footer {
  background: var(--surface-inverse);
  color: #F5F5F7;
  padding: 80px 0 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid #424245;
  margin-bottom: 32px;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }
.footer-brand img { height: 32px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-brand p { color: #A1A1A6; font-size: 0.875rem; line-height: 1.6; max-width: 320px; }
.footer-col h4 { color: #F5F5F7; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.16em; margin-bottom: 16px; font-weight: 600; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { color: #A1A1A6; font-size: 0.9375rem; transition: color 0.15s; }
.footer-col a:hover { color: #F5F5F7; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8125rem; color: #6E6E73;
}
@media (max-width: 540px) { .footer-bottom { flex-direction: column; gap: 12px; text-align: center; } }

/* ===== Mobile responsive overrides ===== */
@media (max-width: 540px) {
  .container, .container-narrow { padding: 0 20px; }
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 56px; }
  .service-card, .case-card, .team-card { padding: 32px 24px; }
  .display { font-size: clamp(2.25rem, 9vw, 3rem); }
  h1 { font-size: clamp(1.875rem, 7vw, 2.5rem); }
  h2 { font-size: clamp(1.625rem, 6vw, 2rem); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .cta-banner { padding: 64px 24px; }
  .school-cluster { padding: 32px 24px; }
  .school-list { grid-template-columns: 1fr; }
}
@media (max-width: 375px) {
  .container, .container-narrow { padding: 0 16px; }
}

/* ===== Utility ===== */
.mt-8 { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }
.mb-8 { margin-bottom: var(--sp-8); }
.hidden { display: none; }

/* ============================================
   v3.0 — Three-Business Color Theme System
   升學 / 移民 / 生涯 — 每業務獨立色票
   ============================================ */

/* Per-page theme (data-theme on <body>) */
body[data-theme="education"] {
  --accent:        #1E40AF;
  --accent-hover:  #1E3A8A;
  --accent-soft:   #EFF3FB;
  --accent-glow:   rgba(30, 64, 175, 0.10);
  --theme-color:   #1E40AF;
  --theme-soft:    #EFF3FB;
}
body[data-theme="visa"] {
  --accent:        #DC2626;
  --accent-hover:  #B91C1C;
  --accent-soft:   #FEF1F1;
  --accent-glow:   rgba(220, 38, 38, 0.10);
  --theme-color:   #DC2626;
  --theme-soft:    #FEF1F1;
}
body[data-theme="career"] {
  --accent:        #059669;
  --accent-hover:  #047857;
  --accent-soft:   #ECFDF5;
  --accent-glow:   rgba(5, 150, 105, 0.10);
  --theme-color:   #059669;
  --theme-soft:    #ECFDF5;
}

/* Home page service-cards: each card has its own color via data-cat */
.service-card[data-cat="education"] { --cat-color:#1E40AF; --cat-soft:#EFF3FB; }
.service-card[data-cat="visa"]       { --cat-color:#DC2626; --cat-soft:#FEF1F1; }
.service-card[data-cat="career"]     { --cat-color:#059669; --cat-soft:#ECFDF5; }

.service-card[data-cat] .icon {
  background: var(--cat-soft);
  color: var(--cat-color);
}
.service-card[data-cat] .arrow {
  color: var(--cat-color);
}

/* Color band on top of each card — make the 3 categories instantly distinguishable */
.service-card[data-cat] {
  position: relative;
  overflow: hidden;
}
.service-card[data-cat]::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: var(--cat-color);
}

/* Large hero treatment for the 3-card service grid on index */
.service-card-large {
  padding: 56px 44px 44px;
  display: flex;
  flex-direction: column;
  min-height: 380px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.service-card-large:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -12px rgba(29,29,31,.18);
  border-color: var(--cat-color);
}
.service-card-large .icon {
  width: 72px; height: 72px;
  border-radius: 20px;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 28px;
  display: flex; align-items: center; justify-content: center;
}
.service-card-large h3 {
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  margin-bottom: 12px;
}
.service-card-large p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 28px;
}
.service-card-large .arrow {
  font-size: 1rem;
  font-weight: 500;
  margin-top: auto;
  display: inline-flex; gap: 8px;
  align-items: center;
}

/* Category tag (used on cases page) */
.cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
}
.cat-tag::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
}
.cat-tag-education { color:#1E40AF; background:#EFF3FB; }
.cat-tag-visa       { color:#DC2626; background:#FEF1F1; }
.cat-tag-career     { color:#059669; background:#ECFDF5; }

/* Page-level theme-aware elements */
.page-hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
  background: var(--theme-soft, var(--surface-canvas));
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 30%, var(--accent-glow, transparent) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, var(--accent-glow, transparent) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero .container-narrow { position: relative; z-index: 1; }
.page-hero h1 { color: var(--ink-900); }
.page-hero .eyebrow {
  color: var(--theme-color, var(--ink-500));
}


/* ============================================
   v4.0 — Full Apple Design Overhaul
   由 Apple product page 提取嘅核心 pattern:
   · Bento grid (asymmetric 1+2 layout)
   · Product lineup (3-card horizontal comparison)
   · Spec-row comparison table
   · Scroll-triggered fade-in animations
   · Sticky bottom CTA (mobile)
   · Liquid gradient hero CTA
   · Larger breathing room (120-200px sections)
   · Stronger typography (5-7rem display)
   ============================================ */

/* ---- Hero v4.0 — Apple product-page treatment ---- */
.hero-v4 {
  padding: 96px 0 0;
  background: var(--surface-canvas);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-v4::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, var(--accent-glow, rgba(10,77,104,0.06)) 0%, transparent 50%);
  pointer-events: none;
}
.hero-v4-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
  position: relative;
  z-index: 1;
}
.hero-v4 .eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-500);
  margin-bottom: var(--sp-6);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
}
.hero-v4 h1 {
  font-size: clamp(3.25rem, 8vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.02;
  margin-bottom: 32px;
  color: var(--ink-900);
}
.hero-v4 h1 .accent-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-v4 .lead {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  line-height: 1.45;
  color: var(--ink-700);
  max-width: 720px;
  margin: 0 auto 48px;
  font-weight: 400;
  letter-spacing: -0.011em;
}
.hero-v4-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}
.hero-v4-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 0 64px;
  border-top: 1px solid var(--ink-100);
}
.hero-v4-stat { text-align: center; }
.hero-v4-stat .num {
  display: block;
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--ink-900);
  line-height: 1;
  margin-bottom: 8px;
}
.hero-v4-stat .label {
  font-size: 0.875rem;
  color: var(--ink-500);
  letter-spacing: -0.005em;
}
@media (max-width: 720px) {
  .hero-v4 { padding: 72px 0 0; }
  .hero-v4-stats { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
}

/* ---- Section v4.0 — Apple generous spacing ---- */
.section-v4 {
  padding: 140px 0;
  position: relative;
}
.section-v4.tight  { padding: 96px 0; }
.section-v4.airy   { padding: 180px 0; }
.section-v4.dark   { background: var(--surface-inverse); color: #fff; }
.section-v4.dark h1, .section-v4.dark h2, .section-v4.dark h3 { color: #fff; }
.section-v4.dark p  { color: rgba(255,255,255,0.78); }
.section-v4.alt    { background: var(--surface-sunken); }

.section-v4-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 80px;
}
.section-v4-head .eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin-bottom: 20px;
}
.section-v4-head h2 {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--ink-900);
  margin-bottom: 20px;
}
.section-v4-head p {
  font-size: 1.1875rem;
  line-height: 1.5;
  color: var(--ink-700);
}

/* ---- Product Lineup (3-card horizontal — like iPhone 15 lineup) ---- */
.lineup {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 980px) { .lineup { grid-template-columns: 1fr; gap: 20px; } }

.lineup-card {
  background: var(--surface-elevated);
  border-radius: var(--radius-xl);
  padding: 56px 36px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow .35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--ink-100);
}
.lineup-card[data-cat] {
  background: linear-gradient(180deg,
    var(--cat-soft, var(--surface-elevated)) 0%,
    var(--surface-elevated) 60%);
}
.lineup-card[data-cat]::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: var(--cat-color, var(--accent));
}
.lineup-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 32px 64px -16px rgba(29,29,31,0.18);
}
.lineup-card-tag {
  display: inline-block;
  align-self: center;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cat-color, var(--accent));
  margin-bottom: 18px;
}
.lineup-card-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}
.lineup-card-visual .big-char {
  font-size: 5rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--cat-color, var(--accent));
  line-height: 1;
}
.lineup-card h3 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
  color: var(--ink-900);
}
.lineup-card .tagline {
  font-size: 0.9375rem;
  color: var(--ink-500);
  margin-bottom: 24px;
  letter-spacing: -0.005em;
}
.lineup-card .price {
  font-size: 0.875rem;
  color: var(--ink-700);
  margin-bottom: 28px;
  padding: 12px 0;
  border-top: 1px solid var(--ink-100);
  border-bottom: 1px solid var(--ink-100);
}
.lineup-card .price strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 4px;
}
.lineup-card .cta-row {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--cat-color, var(--accent));
  margin-top: auto;
  transition: gap 0.2s;
}
.lineup-card:hover .cta-row { gap: 10px; }

/* ---- Bento grid (1-large + 2-medium) ---- */
.bento {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}
.bento .bento-tall {
  grid-row: span 2;
}
@media (max-width: 880px) {
  .bento { grid-template-columns: 1fr; grid-template-rows: auto; }
  .bento .bento-tall { grid-row: span 1; }
}

.bento-card {
  background: var(--surface-elevated);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  border: 1px solid var(--ink-100);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.bento-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px -12px rgba(29,29,31,0.12);
}
.bento-card.bento-large {
  grid-row: span 2;
  min-height: 540px;
  background: linear-gradient(135deg, var(--cat-soft, #F4F2EC) 0%, #fff 100%);
}
.bento-card.bento-large[data-cat] {
  background: linear-gradient(135deg, var(--cat-soft, var(--surface-elevated)) 0%, var(--surface-elevated) 80%);
}
.bento-card .bento-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--cat-soft, var(--accent-soft));
  color: var(--cat-color, var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 28px;
}
.bento-card h3 {
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--ink-900);
}
.bento-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-700);
  margin-bottom: 24px;
}
.bento-card .bento-stat {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--ink-100);
}
.bento-card .bento-stat .num {
  display: block;
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--cat-color, var(--accent));
  line-height: 1;
  margin-bottom: 6px;
}
.bento-card .bento-stat .label {
  font-size: 0.875rem;
  color: var(--ink-500);
}

/* ---- Comparison table (spec rows) ---- */
.spec-table {
  background: var(--surface-elevated);
  border-radius: var(--radius-xl);
  border: 1px solid var(--ink-100);
  overflow: hidden;
}
.spec-table-head {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  background: var(--surface-sunken);
  padding: 24px 32px;
  border-bottom: 1px solid var(--ink-100);
}
.spec-table-head > div {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-500);
}
.spec-table-head > div:first-child { color: var(--ink-900); }
.spec-row {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  padding: 20px 32px;
  border-bottom: 1px solid var(--ink-100);
  align-items: center;
}
.spec-row:last-child { border-bottom: none; }
.spec-row > div {
  font-size: 0.9375rem;
  color: var(--ink-700);
  padding-right: 16px;
}
.spec-row > div:first-child {
  font-weight: 600;
  color: var(--ink-900);
}
.spec-row > div .check { color: var(--cat-color-education, #1E40AF); font-weight: 700; }
.spec-row > div .cross { color: var(--ink-300); }
.spec-row > div .highlight {
  background: var(--cat-soft-education, #EFF3FB);
  color: var(--cat-color-education, #1E40AF);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  display: inline-block;
}
@media (max-width: 880px) {
  .spec-table-head, .spec-row {
    grid-template-columns: 1fr 1fr 1fr;
    padding: 16px 20px;
  }
  .spec-table-head > div:first-child,
  .spec-row > div:first-child { display: none; }
  .spec-row > div:not(:first-child)::before {
    content: attr(data-cat);
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-500);
    margin-bottom: 4px;
  }
}

/* ---- Process steps (like Apple Watch setup) ---- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink-100);
  border-bottom: 1px solid var(--ink-100);
}
.process-step {
  padding: 40px 32px;
  border-right: 1px solid var(--ink-100);
  position: relative;
}
.process-step:last-child { border-right: none; }
.process-step .step-num {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.process-step h4 {
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--ink-900);
}
.process-step p {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-700);
}
@media (max-width: 880px) {
  .process { grid-template-columns: 1fr; }
  .process-step { border-right: none; border-bottom: 1px solid var(--ink-100); }
  .process-step:last-child { border-bottom: none; }
}

/* ---- Testimonial / case quote (Apple style) ---- */
.quote-v4 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.4;
  color: var(--ink-900);
  margin-bottom: 24px;
}
.quote-v4::before {
  content: '"';
  display: block;
  font-size: 4rem;
  line-height: 0.5;
  color: var(--accent);
  margin-bottom: 16px;
  font-family: Georgia, serif;
}
.case-meta {
  display: flex;
  gap: 16px;
  align-items: center;
}
.case-meta-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.case-meta-text .name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-900);
  letter-spacing: -0.01em;
}
.case-meta-text .from {
  font-size: 0.8125rem;
  color: var(--ink-500);
  margin-top: 2px;
}

/* ---- CTA banner (Apple "Buy iPhone" style) ---- */
.cta-v4 {
  background: linear-gradient(135deg,
    var(--theme-color, var(--accent)) 0%,
    var(--accent-hover) 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 80px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-v4::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.12), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(255,255,255,0.08), transparent 50%);
  pointer-events: none;
}
.cta-v4 > * { position: relative; z-index: 1; }
.cta-v4 h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
  color: #fff;
}
.cta-v4 p {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.88);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cta-v4-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-v4 .btn-v4-primary {
  background: #fff;
  color: var(--theme-color, var(--accent));
  padding: 16px 32px;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.cta-v4 .btn-v4-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}
.cta-v4 .btn-v4-secondary {
  background: transparent;
  color: #fff;
  padding: 16px 32px;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.32);
  transition: background .2s ease;
}
.cta-v4 .btn-v4-secondary:hover {
  background: rgba(255,255,255,0.12);
}

/* ---- FAQ accordion (Apple support style) ---- */
.faq {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--ink-100);
  padding: 28px 0;
}
.faq-item:first-child { border-top: 1px solid var(--ink-100); }
.faq-q {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--ink-500);
  transition: transform .25s;
}
.faq-item[open] .faq-q::after { transform: rotate(45deg); }
.faq-a {
  padding-top: 16px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink-700);
}

/* ---- Sticky bottom CTA (mobile-first, also works desktop) ---- */
.sticky-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink-900);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  box-shadow: 0 12px 32px rgba(29,29,31,0.28);
  transition: transform .25s ease, background .2s ease;
}
.sticky-cta:hover {
  transform: translateY(-2px);
  background: var(--accent);
}
body[data-theme] .sticky-cta:hover {
  background: var(--theme-color, var(--accent));
}
@media (max-width: 720px) {
  .sticky-cta {
    bottom: 16px;
    right: 16px;
    padding: 12px 20px;
    font-size: 0.875rem;
  }
}

/* ---- Scroll-triggered fade-in (apply class .reveal) ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s cubic-bezier(0.4, 0, 0.2, 1),
              transform .7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-reveal-delay="100"] { transition-delay: 100ms; }
.reveal[data-reveal-delay="200"] { transition-delay: 200ms; }
.reveal[data-reveal-delay="300"] { transition-delay: 300ms; }

/* ---- School/university pill grid (Apple-style chips) ---- */
.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--surface-elevated);
  border: 1px solid var(--ink-100);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-700);
  transition: all .2s ease;
}
.chip:hover {
  border-color: var(--cat-color, var(--accent));
  color: var(--cat-color, var(--accent));
  background: var(--cat-soft, var(--accent-soft));
}

/* ---- Stats showcase (Apple "Privacy" section) ---- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-row .stat-item .stat-num {
  display: block;
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink-900);
  margin-bottom: 12px;
}
.stat-row .stat-item .stat-num .unit {
  font-size: 0.5em;
  font-weight: 500;
  margin-left: 4px;
  color: var(--ink-500);
}
.stat-row .stat-item .stat-label {
  font-size: 1rem;
  color: var(--ink-700);
  line-height: 1.4;
  max-width: 200px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .stat-row { grid-template-columns: 1fr; gap: 48px; }
}

/* ---- Footer v4.0 (Apple-style minimal) ---- */
.footer-v4 {
  background: var(--surface-inverse);
  color: rgba(255,255,255,0.72);
  padding: 80px 0 40px;
  font-size: 0.875rem;
}
.footer-v4-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 56px;
}
@media (max-width: 880px) { .footer-v4-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
.footer-v4-brand p {
  color: rgba(255,255,255,0.6);
  margin-top: 16px;
  max-width: 320px;
  line-height: 1.5;
}
.footer-v4-col h5 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}
.footer-v4-col ul li {
  margin-bottom: 12px;
}
.footer-v4-col a {
  color: rgba(255,255,255,0.72);
  transition: color .15s;
}
.footer-v4-col a:hover {
  color: #fff;
}
.footer-v4-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: rgba(255,255,255,0.5);
  font-size: 0.8125rem;
}
.footer-v4-lang {
  display: inline-flex;
  gap: 4px;
}
.footer-v4-lang a {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.72);
  font-size: 0.75rem;
}
.footer-v4-lang a.active { background: rgba(255,255,255,0.18); color: #fff; }

/* ---- Page hero v4.0 (sub-pages) ---- */
.page-hero-v4 {
  padding: 140px 0 96px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero-v4::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, var(--accent-glow, transparent) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero-v4 h1 {
  font-size: clamp(2.75rem, 6.5vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 20px 0 24px;
  color: var(--ink-900);
}
.page-hero-v4 .lead {
  font-size: clamp(1.125rem, 1.6vw, 1.375rem);
  line-height: 1.5;
  color: var(--ink-700);
  max-width: 720px;
  margin: 0 auto 40px;
}
.page-hero-v4 .eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--theme-color, var(--accent));
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--theme-soft, var(--accent-soft));
}

/* ---- Visual padding utility for reveal wrappers ---- */
.section-v4 .container { position: relative; }

/* ---- Dark section adjustments ---- */
.section-v4.dark .spec-table {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
.section-v4.dark .spec-table-head { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); }
.section-v4.dark .spec-row { border-color: rgba(255,255,255,0.12); }
.section-v4.dark .spec-row > div:first-child { color: #fff; }
.section-v4.dark .stat-row .stat-item .stat-num { color: #fff; }

/* ---- Backward-compat: existing v3 dark CTA overrides ---- */
.cta-v4.dark { background: #1D1D1F; }

/* ---- End v4.0 ---- */