/* ============================================================
   小蓝诊所 · XiaoLan Clinic · Design System v2.0
   Based on Brand Language Guide 品牌设计语言手册
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* ── Design Tokens ── */
:root {
  /* Primary Palette */
  --ocean-deep:     #1A6B8A;
  --pacific-light:  #6EC6E6;
  --coastal-mist:   #E8F4F8;

  /* Neutral Scale */
  --ink-900:        #0D1B2A;
  --ink-800:        #1E2D3D;
  --ink-700:        #2C3E50;
  --ink-500:        #5A7080;
  --ink-400:        #8AA8B8;
  --ink-200:        #C5D8E0;
  --ink-100:        #F0F6F8;
  --ink-50:         #F9FAFB;

  /* Accent */
  --sand:           #F4F1EC;
  --champagne:      #C8A882;
  --coral:          #E25530;

  /* Typography */
  --font-display-en: 'DM Serif Display', serif;
  --font-body-en:    'DM Sans', sans-serif;
  --font-display-cn: 'Noto Serif SC', serif;
  --font-body-cn:    'Noto Sans SC', sans-serif;

  /* Spacing — 8px base grid */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;

  /* Motion */
  --ease-brand:    cubic-bezier(0.25, 0, 0.1, 1);
  --dur-fast:      120ms;
  --dur-base:      240ms;
  --dur-slow:      480ms;
  --dur-story:     800ms;

  /* Layout */
  --nav-h:         68px;
  --page-max:      1200px;
  --page-pad:      clamp(20px, 5vw, 48px);
  --radius-card:   8px;
  --radius-pill:   100px;

  /* Font size — controlled by JS font-sizer */
  --fs-base:       16px;
}

/* ── Font size variants ── */
[data-fontsize="sm"] { --fs-base: 14px; }
[data-fontsize="md"] { --fs-base: 16px; }
[data-fontsize="lg"] { --fs-base: 18px; }
[data-fontsize="xl"] { --fs-base: 20px; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: var(--fs-base); }

body {
  background: var(--ink-50);
  color: var(--ink-800);
  font-family: var(--font-body-en), var(--font-body-cn), sans-serif;
  font-weight: 400;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--coastal-mist); color: var(--ink-900); }

/* ─────────────────────────────────────────
   TYPOGRAPHY SCALE
───────────────────────────────────────── */
.t-display {
  font-family: var(--font-display-en), var(--font-display-cn);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.t-h1 {
  font-family: var(--font-display-cn), var(--font-display-en);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

.t-h2 {
  font-family: var(--font-display-cn), var(--font-display-en);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.03em;
}

.t-h3 {
  font-family: var(--font-display-cn), var(--font-display-en);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.t-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-700);
}

.t-small {
  font-size: 0.8125rem; /* 13px */
  line-height: 1.6;
}

.t-caption {
  font-size: 0.625rem; /* 10px */
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-body-en);
}

.t-label {
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ocean-deep);
}

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--page-pad);
}

.section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }
.section-alt { background: var(--sand); }
.section-dark { background: var(--ink-900); color: var(--ink-50); }
.section-teal { background: var(--ocean-deep); color: #fff; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

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

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

.divider {
  width: 32px;
  height: 1.5px;
  background: var(--ocean-deep);
  margin: var(--space-lg) 0;
}
.divider-center { margin: var(--space-lg) auto; }

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body-en), var(--font-body-cn);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-brand);
  white-space: nowrap;
}

.btn-primary {
  background: var(--ocean-deep);
  color: #fff;
  border-color: var(--ocean-deep);
}
.btn-primary:hover {
  background: var(--ink-800);
  border-color: var(--ink-800);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(26, 107, 138, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--ocean-deep);
  border-color: var(--ocean-deep);
}
.btn-ghost:hover {
  background: var(--coastal-mist);
}

.btn-dark {
  background: var(--ink-900);
  color: var(--ink-50);
  border-color: var(--ink-900);
}
.btn-dark:hover {
  background: var(--ink-800);
  transform: translateY(-1px);
}

.btn-white {
  background: #fff;
  color: var(--ocean-deep);
  border-color: #fff;
}
.btn-white:hover {
  background: var(--coastal-mist);
}

.btn-arrow::after {
  content: '→';
  transition: transform var(--dur-fast) var(--ease-brand);
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* ─────────────────────────────────────────
   TAGS / CHIPS
───────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body-en);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--ink-200);
  color: var(--ink-500);
  background: var(--ink-50);
}
.tag-teal {
  border-color: var(--pacific-light);
  color: var(--ocean-deep);
  background: var(--coastal-mist);
}
.tag-dark {
  border-color: var(--ink-700);
  color: var(--ink-100);
  background: var(--ink-800);
}

/* ─────────────────────────────────────────
   CARDS
───────────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-card);
  padding: var(--space-xl);
  transition: border-color var(--dur-base), box-shadow var(--dur-base), transform var(--dur-base);
}
.card:hover {
  border-color: var(--pacific-light);
  box-shadow: 0 8px 32px rgba(26, 107, 138, 0.1);
  transform: translateY(-2px);
}

.card-clinical {
  background: var(--ink-900);
  color: var(--ink-100);
  border: none;
}

/* ─────────────────────────────────────────
   NAVIGATION
───────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-pad);
  background: rgba(249, 250, 251, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base), box-shadow var(--dur-base);
}
.nav.scrolled {
  border-color: var(--ink-100);
  box-shadow: 0 1px 24px rgba(13, 27, 42, 0.07);
}

.nav-logo {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-logo-cn {
  font-family: var(--font-display-cn);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-900);
  letter-spacing: 0.1em;
}
.nav-logo-en {
  font-family: var(--font-body-en);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-400);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body-en), var(--font-body-cn);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-700);
  text-decoration: none;
  transition: color var(--dur-fast);
}
.nav-links a:hover { color: var(--ocean-deep); }
.nav-links a.active { color: var(--ocean-deep); }

/* Font sizer */
.font-sizer {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--ink-100);
  border-radius: var(--radius-pill);
  padding: 4px 8px;
}
.font-sizer-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-700);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.font-sizer-btn:hover { background: #fff; color: var(--ocean-deep); }
.font-sizer-btn.active { background: var(--ocean-deep); color: #fff; }
.font-sizer-divider {
  width: 1px;
  height: 14px;
  background: var(--ink-200);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform var(--dur-base), opacity var(--dur-base);
}

/* Nav right cluster */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ─────────────────────────────────────────
   MOBILE DRAWER
───────────────────────────────────────── */
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--ink-50);
  border-bottom: 1px solid var(--ink-100);
  z-index: 190;
  padding: var(--space-lg) var(--page-pad) var(--space-xl);
  box-shadow: 0 8px 32px rgba(13,27,42,0.12);
}
.mobile-drawer.open { display: block; }
.mobile-drawer nav { display: flex; flex-direction: column; gap: var(--space-md); }
.mobile-drawer nav a {
  font-family: var(--font-body-cn);
  font-size: 1rem;
  font-weight: 400;
  color: var(--ink-800);
  text-decoration: none;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--ink-100);
}
.mobile-drawer nav a:last-child { border-bottom: none; }
.mobile-font-sizer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--ink-100);
}
.mobile-font-sizer p {
  font-size: 0.75rem;
  color: var(--ink-500);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.1em;
}
.mobile-font-btns { display: flex; gap: var(--space-sm); }
.mobile-font-btn {
  flex: 1;
  padding: 10px;
  border: 1.5px solid var(--ink-200);
  border-radius: var(--radius-card);
  background: #fff;
  cursor: pointer;
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-700);
  transition: all var(--dur-fast);
}
.mobile-font-btn.active {
  border-color: var(--ocean-deep);
  color: var(--ocean-deep);
  background: var(--coastal-mist);
}

/* ─────────────────────────────────────────
   FADE-IN ANIMATIONS
───────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-brand),
              transform var(--dur-slow) var(--ease-brand);
}
.fade-in.visible { opacity: 1; transform: none; }
.fade-in-delay-1 { transition-delay: 0.08s; }
.fade-in-delay-2 { transition-delay: 0.16s; }
.fade-in-delay-3 { transition-delay: 0.24s; }
.fade-in-delay-4 { transition-delay: 0.36s; }

/* ─────────────────────────────────────────
   HERO — INDEX
───────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: var(--nav-h);
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-2xl) var(--page-pad);
  padding-right: var(--space-2xl);
}
.hero-eyebrow {
  font-family: var(--font-body-en);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ocean-deep);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--ocean-deep);
}
.hero-tagline {
  font-family: var(--font-display-cn);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--ink-900);
  margin-bottom: var(--space-md);
}
.hero-tagline em {
  font-style: normal;
  color: var(--ocean-deep);
}
.hero-sub {
  font-family: var(--font-display-en);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-style: italic;
  color: var(--ink-500);
  margin-bottom: var(--space-xl);
}
.hero-desc {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--ink-700);
  max-width: 420px;
  margin-bottom: var(--space-xl);
}
.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero-image {
  position: relative;
  overflow: hidden;
  background: var(--coastal-mist);
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.88) contrast(1.02);
  transition: transform 6s var(--ease-brand);
}
.hero-image:hover img { transform: scale(1.03); }

.hero-badge {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-xl);
  background: rgba(249, 250, 251, 0.95);
  backdrop-filter: blur(8px);
  padding: 14px 18px;
  border-left: 2px solid var(--ocean-deep);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}
.hero-badge strong {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ocean-deep);
  margin-bottom: 2px;
}
.hero-badge span {
  font-family: var(--font-body-cn);
  font-size: 0.8125rem;
  color: var(--ink-700);
}

/* ─────────────────────────────────────────
   GLOW SECTION
───────────────────────────────────────── */
.glow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.glow-item {
  padding: var(--space-xl) var(--space-lg);
  border-right: 1px solid var(--ink-100);
  transition: background var(--dur-base);
}
.glow-item:last-child { border-right: none; }
.glow-item:hover { background: var(--coastal-mist); }
.glow-letter {
  font-family: var(--font-display-en);
  font-size: 3rem;
  font-weight: 400;
  color: var(--pacific-light);
  line-height: 1;
  margin-bottom: var(--space-xs);
  transition: color var(--dur-base);
}
.glow-item:hover .glow-letter { color: var(--ocean-deep); }
.glow-en {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ocean-deep);
  margin-bottom: var(--space-sm);
}
.glow-cn {
  font-family: var(--font-display-cn);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-900);
  margin-bottom: var(--space-sm);
}
.glow-desc {
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--ink-500);
}

/* ─────────────────────────────────────────
   TREATMENT LIST
───────────────────────────────────────── */
.treatment-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--ink-100);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.treatment-item {
  background: #fff;
  padding: var(--space-xl) var(--space-lg);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: background var(--dur-base);
}
.treatment-item:hover { background: var(--coastal-mist); }
.treatment-num {
  font-family: var(--font-body-en);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pacific-light);
  margin-bottom: var(--space-md);
}
.treatment-en {
  font-family: var(--font-display-en);
  font-size: 1rem;
  color: var(--ink-500);
  margin-bottom: 2px;
  font-style: italic;
}
.treatment-cn {
  font-family: var(--font-display-cn);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink-900);
  margin-bottom: var(--space-md);
}
.treatment-tags { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-md); }
.treatment-arrow {
  font-size: 0.8125rem;
  color: var(--ocean-deep);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--dur-fast);
}
.treatment-item:hover .treatment-arrow { gap: 8px; }

/* ─────────────────────────────────────────
   PAGE HEADER
───────────────────────────────────────── */
.page-header {
  padding-top: var(--nav-h);
  background: var(--ink-900);
  color: var(--ink-50);
  padding-bottom: 0;
}
.page-header-inner {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}
.page-header .t-label { color: var(--pacific-light); }

/* ─────────────────────────────────────────
   DOCTOR HERO
───────────────────────────────────────── */
.doctor-hero {
  min-height: 85svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: var(--nav-h);
}
.doctor-image {
  background: var(--ink-800);
  overflow: hidden;
}
.doctor-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.85);
}
.doctor-content {
  padding: var(--space-2xl) var(--page-pad);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ink-900);
  color: var(--ink-50);
}
.doctor-name {
  font-family: var(--font-display-cn);
  font-size: 2.2rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.doctor-title {
  font-family: var(--font-body-en);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pacific-light);
  margin-bottom: var(--space-xl);
}
.doctor-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin: var(--space-xl) 0;
}
.spec-label {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pacific-light);
  margin-bottom: 4px;
}
.spec-value {
  font-family: var(--font-body-cn);
  font-size: 0.875rem;
  color: var(--ink-200);
}

/* ─────────────────────────────────────────
   TREATMENT PAGE NAV
───────────────────────────────────────── */
.sticky-subnav {
  position: sticky;
  top: var(--nav-h);
  z-index: 100;
  background: var(--ink-900);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  overflow-x: auto;
  scrollbar-width: none;
}
.sticky-subnav::-webkit-scrollbar { display: none; }
.sticky-subnav-inner {
  display: flex;
  padding: 0 var(--page-pad);
}
.subnav-item {
  flex-shrink: 0;
  padding: 14px 20px;
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast), border-color var(--dur-fast);
  white-space: nowrap;
}
.subnav-item:hover { color: rgba(255,255,255,0.8); }
.subnav-item.active { color: var(--pacific-light); border-color: var(--pacific-light); }

/* ─────────────────────────────────────────
   TREATMENT SECTIONS
───────────────────────────────────────── */
.treatment-section {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--ink-100);
  scroll-margin-top: calc(var(--nav-h) + 50px);
}
.treatment-section:nth-child(even) { background: var(--sand); }
.t-treatment-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
  align-items: start;
}
.treatment-title-en {
  font-family: var(--font-display-en);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--ink-500);
  margin-bottom: var(--space-xs);
}
.treatment-title-cn {
  font-family: var(--font-display-cn);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
  margin-bottom: var(--space-xs);
}
.treatment-subtitle {
  font-family: var(--font-display-en);
  font-style: italic;
  color: var(--ink-500);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
}

/* indications */
.indication-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.indication-item {
  padding: var(--space-md);
  font-size: 0.8125rem;
  color: var(--ink-700);
  line-height: 1.6;
  border-bottom: 1px solid var(--ink-100);
  border-right: 1px solid var(--ink-100);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}
.indication-item:nth-child(even) { border-right: none; }
.indication-item:nth-last-child(-n+2) { border-bottom: none; }
.indication-item::before {
  content: '·';
  color: var(--ocean-deep);
  font-size: 1.1rem;
  line-height: 1.4;
  flex-shrink: 0;
}

/* FAQ grid */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
.faq-card {
  padding: var(--space-lg);
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-card);
}
.faq-q {
  font-family: var(--font-body-cn);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ocean-deep);
  margin-bottom: var(--space-sm);
}
.faq-a {
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--ink-500);
}

/* ─────────────────────────────────────────
   JOURNAL
───────────────────────────────────────── */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.article-card {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.article-img {
  aspect-ratio: 4/3;
  background: var(--coastal-mist);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 0;
}
.article-img-num {
  font-family: var(--font-display-en);
  font-size: 4rem;
  font-weight: 400;
  color: var(--pacific-light);
}
.article-body {
  padding: var(--space-lg);
  background: #fff;
  border: 1px solid var(--ink-100);
  border-top: none;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  flex: 1;
}
.article-category {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ocean-deep);
  margin-bottom: var(--space-sm);
}
.article-title {
  font-family: var(--font-display-cn);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-900);
  line-height: 1.4;
  margin-bottom: var(--space-sm);
  transition: color var(--dur-fast);
}
.article-card:hover .article-title { color: var(--ocean-deep); }
.article-excerpt {
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--ink-500);
}

/* Article full */
.article-full {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--page-pad);
}
.article-full p {
  font-size: 0.9375rem;
  line-height: 2;
  color: var(--ink-700);
  margin-bottom: var(--space-lg);
}
.article-full h3 {
  font-family: var(--font-display-cn);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--ink-900);
  margin: var(--space-2xl) 0 var(--space-md);
}
.article-full .pull-quote {
  font-family: var(--font-display-cn);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink-900);
  padding: var(--space-lg) var(--space-xl);
  border-left: 3px solid var(--ocean-deep);
  background: var(--coastal-mist);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  margin: var(--space-xl) 0;
}

/* ─────────────────────────────────────────
   CONTACT
───────────────────────────────────────── */
.info-row {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--ink-100);
  align-items: flex-start;
}
.info-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ocean-deep);
  width: 60px;
  flex-shrink: 0;
  padding-top: 2px;
}
.info-value {
  font-family: var(--font-body-cn);
  font-size: 0.9375rem;
  color: var(--ink-700);
  line-height: 1.7;
}

.process-step {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--ink-100);
}
.process-num {
  font-family: var(--font-display-en);
  font-size: 1.8rem;
  color: var(--coastal-mist);
  line-height: 1;
  flex-shrink: 0;
  width: 36px;
}
.process-content h4 {
  font-family: var(--font-body-cn);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-900);
  margin-bottom: 4px;
}
.process-content p {
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--ink-500);
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.footer {
  background: var(--ink-900);
  color: rgba(240, 246, 248, 0.65);
  padding: var(--space-2xl) 0 var(--space-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer-brand-cn {
  font-family: var(--font-display-cn);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink-50);
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}
.footer-brand-en {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--pacific-light);
  margin-bottom: var(--space-lg);
}
.footer-tagline {
  font-size: 0.8125rem;
  line-height: 1.9;
  max-width: 260px;
}
.footer-col h4 {
  font-family: var(--font-body-en);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-50);
  margin-bottom: var(--space-lg);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: var(--space-sm); }
.footer-col ul li a {
  font-size: 0.8125rem;
  color: rgba(240,246,248,0.55);
  text-decoration: none;
  transition: color var(--dur-fast);
}
.footer-col ul li a:hover { color: var(--pacific-light); }
.footer-info-row {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.8125rem;
  align-items: flex-start;
}
.footer-info-row span:first-child { flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.6875rem;
  color: rgba(240,246,248,0.3);
}

/* ─────────────────────────────────────────
   RESPONSIVE — TABLET
───────────────────────────────────────── */
@media (max-width: 1024px) {
  .glow-grid { grid-template-columns: 1fr 1fr; }
  .glow-item:nth-child(2) { border-right: none; }
  .glow-item:nth-child(3),
  .glow-item:nth-child(4) { border-top: 1px solid var(--ink-100); }

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

  .t-treatment-header { grid-template-columns: 1fr; gap: var(--space-xl); }
}

/* ─────────────────────────────────────────
   RESPONSIVE — MOBILE (priority)
───────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-2xl: 48px;
    --space-xl:  32px;
  }

  /* Nav — show toggle, hide desktop links */
  .nav-links, .font-sizer { display: none; }
  .nav-toggle { display: flex; }

  /* Hero — stack */
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-image { min-height: 55vw; order: -1; }
  .hero-content { padding: var(--space-xl) var(--page-pad); }
  .hero-content br { display: none; }

  /* Doctor hero — stack */
  .doctor-hero { grid-template-columns: 1fr; min-height: auto; }
  .doctor-image { min-height: 60vw; }
  .doctor-content { padding: var(--space-xl) var(--page-pad); }
  .doctor-specs { grid-template-columns: 1fr 1fr; }

  /* Grids */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: var(--space-lg); }
  .glow-grid, .treatment-list, .article-grid { grid-template-columns: 1fr; }
  .glow-item { border-right: none; border-top: 1px solid var(--ink-100); }
  .glow-item:first-child { border-top: none; }
  .indication-grid { grid-template-columns: 1fr; }
  .indication-item { border-right: none !important; }
  .indication-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--ink-100); }
  .indication-item:last-child { border-bottom: none !important; }
  .faq-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

  .article-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

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

@media (max-width: 480px) {
  .doctor-specs { grid-template-columns: 1fr; }
  .btn { padding: 14px 20px; font-size: 0.875rem; }
}

/* Contact grid for contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}