/* ============================================
   SinoCura 欣诺康 — Main Stylesheet
   Base + Components + Pages + Responsive
   ============================================ */

/* ===== Reset & Base ===== */
*, *::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);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

a { color: var(--sino-blue); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--cura-teal); }

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

ul, ol { list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

input, textarea, select { font-family: inherit; font-size: inherit; }

/* ===== Layout Utilities ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--container-padding); }

.section { padding: var(--space-4xl) 0; }
.section--tight { padding: var(--space-3xl) 0; }
.section--gray { background: var(--bg-secondary); }
.section--blue { background: var(--bg-blue-tint); }
.section--dark { background: var(--sino-blue); color: var(--text-white); }

.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--space-3xl); }
.section-header h2 { font-size: var(--fs-4xl); font-weight: 700; color: var(--sino-blue); margin-bottom: var(--space-md); letter-spacing: -0.5px; }
.section-header p { font-size: var(--fs-lg); color: var(--text-secondary); }
.section--dark .section-header h2 { color: var(--text-white); }
.section--dark .section-header p { color: rgba(255,255,255,0.8); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  padding: 12px 28px; border-radius: var(--radius-md); font-size: var(--fs-base); font-weight: 600;
  transition: all var(--transition-base); white-space: nowrap; text-align: center;
}
.btn--primary { background: var(--sino-blue); color: var(--text-white); box-shadow: var(--shadow-blue); }
.btn--primary:hover { background: var(--sino-blue-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn--secondary { background: var(--cura-teal); color: var(--text-white); }
.btn--secondary:hover { background: #0a5641; color: var(--text-white); transform: translateY(-2px); }
.btn--outline { border: 2px solid var(--sino-blue); color: var(--sino-blue); background: transparent; }
.btn--outline:hover { background: var(--sino-blue); color: var(--text-white); }
.btn--white { background: var(--text-white); color: var(--sino-blue); }
.btn--white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn--lg { padding: 16px 36px; font-size: var(--fs-lg); }
.btn--block { display: flex; width: 100%; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light); z-index: var(--z-fixed);
  transition: box-shadow var(--transition-base);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }

.navbar__inner {
  max-width: var(--max-width); margin: 0 auto; height: 100%;
  padding: 0 var(--container-padding);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg);
}

.navbar__logo img { height: 44px; }

.navbar__menu { display: flex; align-items: center; gap: var(--space-xl); }
.navbar__menu a {
  font-size: var(--fs-base); font-weight: 500; color: var(--text-primary);
  position: relative; padding: 6px 0;
}
.navbar__menu a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: var(--cura-teal); transition: width var(--transition-base);
}
.navbar__menu a:hover::after, .navbar__menu a.active::after { width: 100%; }
.navbar__menu a:hover, .navbar__menu a.active { color: var(--sino-blue); }

.navbar__actions { display: flex; align-items: center; gap: var(--space-md); }

/* Language Switcher */
.lang-switcher { position: relative; }
.lang-switcher__btn {
  display: flex; align-items: center; gap: 6px; padding: 8px 14px;
  border-radius: var(--radius-md); border: 1px solid var(--border-light);
  font-size: var(--fs-sm); font-weight: 500; color: var(--text-primary);
  transition: all var(--transition-fast);
}
.lang-switcher__btn:hover { border-color: var(--sino-blue); color: var(--sino-blue); }
.lang-switcher__btn svg { width: 18px; height: 18px; }

.lang-switcher__menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 160px;
  background: var(--text-white); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border-light);
  padding: var(--space-xs); opacity: 0; visibility: hidden;
  transform: translateY(-8px); transition: all var(--transition-base); z-index: var(--z-dropdown);
}
.lang-switcher.active .lang-switcher__menu { opacity: 1; visibility: visible; transform: translateY(0); }

.lang-switcher__item {
  display: flex; align-items: center; gap: var(--space-sm); padding: 10px 14px;
  border-radius: var(--radius-sm); font-size: var(--fs-sm); cursor: pointer;
  transition: background var(--transition-fast);
}
.lang-switcher__item:hover { background: var(--bg-tertiary); }
.lang-switcher__item.active { background: var(--bg-blue-tint); color: var(--sino-blue); font-weight: 600; }
.lang-switcher__item span { font-size: var(--fs-xs); color: var(--text-muted); }

/* Mobile Menu Toggle */
.navbar__toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.navbar__toggle span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all var(--transition-base); }
.navbar__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar__toggle.active span:nth-child(2) { opacity: 0; }
.navbar__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; position: relative;
  background: linear-gradient(135deg, var(--bg-blue-tint) 0%, #f0f7ff 50%, var(--bg-teal-tint) 100%);
  padding-top: var(--nav-height); overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(12,68,124,0.06) 0%, transparent 70%);
}
.hero::after {
  content: ''; position: absolute; bottom: -150px; left: -150px;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(15,110,86,0.05) 0%, transparent 70%);
}

.hero__inner { display: flex; align-items: center; gap: var(--space-4xl); position: relative; z-index: 1; }
.hero__content { flex: 1; }
.hero__badge {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  padding: 8px 16px; border-radius: var(--radius-full);
  background: rgba(15, 110, 86, 0.1); color: var(--cura-teal);
  font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--space-lg);
}
.hero__title { font-size: var(--fs-5xl); font-weight: 800; line-height: 1.1; color: var(--sino-blue); margin-bottom: var(--space-lg); letter-spacing: -1px; }
.hero__title span { color: var(--cura-teal); }
.hero__desc { font-size: var(--fs-lg); color: var(--text-secondary); max-width: 560px; margin-bottom: var(--space-2xl); }
.hero__actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.hero__stats { display: flex; gap: var(--space-2xl); margin-top: var(--space-3xl); flex-wrap: wrap; }
.hero__stat-value { font-size: var(--fs-3xl); font-weight: 800; color: var(--sino-blue); }
.hero__stat-label { font-size: var(--fs-sm); color: var(--text-muted); }

.hero__visual { flex: 0 0 420px; display: flex; align-items: center; justify-content: center; }
.hero__shield {
  width: 360px; height: 360px; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero__shield svg { width: 100%; height: 100%; filter: drop-shadow(0 20px 50px rgba(12,68,124,0.2)); }
.hero__shield-ring {
  position: absolute; border: 2px solid rgba(12,68,124,0.1); border-radius: 50%;
  animation: pulse-ring 3s ease-out infinite;
}
.hero__shield-ring:nth-child(1) { width: 100%; height: 100%; animation-delay: 0s; }
.hero__shield-ring:nth-child(2) { width: 100%; height: 100%; animation-delay: 1s; }
.hero__shield-ring:nth-child(3) { width: 100%; height: 100%; animation-delay: 2s; }

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ===== Service Cards ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.service-card {
  padding: var(--space-2xl); border-radius: var(--radius-lg);
  background: var(--text-white); border: 1px solid var(--border-light);
  transition: all var(--transition-base); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--sino-blue), var(--cura-teal));
  transform: scaleX(0); transform-origin: left; transition: transform var(--transition-base);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-card__icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: var(--space-lg);
  background: var(--bg-blue-tint);
}
.service-card h3 { font-size: var(--fs-xl); font-weight: 700; color: var(--text-primary); margin-bottom: var(--space-sm); }
.service-card p { font-size: var(--fs-sm); color: var(--text-secondary); }

/* ===== Hospital Cards ===== */
.hospitals-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.hospital-card {
  border-radius: var(--radius-lg); background: var(--text-white);
  border: 1px solid var(--border-light); overflow: hidden;
  transition: all var(--transition-base);
}
.hospital-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.hospital-card__header { padding: var(--space-xl) var(--space-xl) var(--space-md); }
.hospital-card__name { font-size: var(--fs-xl); font-weight: 700; color: var(--sino-blue); margin-bottom: var(--space-xs); }
.hospital-card__meta { display: flex; align-items: center; gap: var(--space-sm); font-size: var(--fs-sm); color: var(--text-muted); }
.hospital-card__meta span { display: inline-flex; align-items: center; gap: 4px; }
.hospital-card__body { padding: 0 var(--space-xl) var(--space-md); }
.hospital-card__body p { font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--space-md); }
.hospital-card__intl { font-size: var(--fs-sm); color: var(--cura-teal); font-weight: 600; margin-bottom: var(--space-md); }
.hospital-card__tags { display: flex; flex-wrap: wrap; gap: var(--space-xs); padding: 0 var(--space-xl) var(--space-xl); }
.hospital-tag { padding: 4px 12px; border-radius: var(--radius-full); font-size: var(--fs-xs); font-weight: 500; background: var(--bg-blue-tint); color: var(--sino-blue); }

/* ===== Expert Cards ===== */
.experts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.expert-card {
  border-radius: var(--radius-lg); background: var(--text-white);
  border: 1px solid var(--border-light); padding: var(--space-xl);
  transition: all var(--transition-base); text-align: center;
}
.expert-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--cura-teal-light); }
.expert-card__avatar {
  width: 96px; height: 96px; border-radius: 50%; margin: 0 auto var(--space-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; font-weight: 700; color: var(--text-white);
  background: linear-gradient(135deg, var(--sino-blue), var(--cura-teal));
  overflow: hidden; position: relative;
  box-shadow: 0 2px 8px rgba(12, 68, 124, 0.15);
}
.expert-card__photo {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
  display: block; transition: transform 0.4s ease;
}
.expert-card:hover .expert-card__photo { transform: scale(1.08); }
.avatar--fallback {
  background: linear-gradient(135deg, var(--sino-blue), var(--cura-teal));
}
.expert-card__name { font-size: var(--fs-lg); font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.expert-card__title { font-size: var(--fs-sm); color: var(--cura-teal); font-weight: 500; margin-bottom: 4px; }
.expert-card__hospital { font-size: var(--fs-sm); color: var(--text-muted); margin-bottom: var(--space-md); }
.expert-card__desc { font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--space-md); text-align: left; }
.expert-card__lang { font-size: var(--fs-xs); color: var(--text-muted); padding-top: var(--space-sm); border-top: 1px solid var(--border-light); }

/* ===== Case Cards ===== */
.cases-list { display: grid; grid-template-columns: 1fr; gap: var(--space-2xl); }
.case-card {
  border-radius: var(--radius-lg); background: var(--text-white);
  border: 1px solid var(--border-light); overflow: hidden;
  transition: all var(--transition-base);
}
.case-card:hover { box-shadow: var(--shadow-lg); }
.case-card__header {
  padding: var(--space-xl) var(--space-xl) var(--space-md);
  border-bottom: 1px solid var(--border-light);
}
.case-card__flag { font-size: 36px; margin-bottom: var(--space-sm); }
.case-card__name { font-size: var(--fs-xl); font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.case-card__location { font-size: var(--fs-sm); color: var(--text-muted); margin-bottom: var(--space-sm); }
.case-card__condition { font-size: var(--fs-base); font-weight: 600; color: var(--cura-teal); }
.case-card__body { padding: var(--space-xl); }
.case-card__section { margin-bottom: var(--space-lg); }
.case-card__section:last-child { margin-bottom: 0; }
.case-card__label { font-size: var(--fs-sm); font-weight: 700; color: var(--sino-blue); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-xs); }
.case-card__text { font-size: var(--fs-sm); color: var(--text-secondary); }
.case-card__quote {
  padding: var(--space-md) var(--space-lg); border-left: 3px solid var(--heritage-amber);
  background: var(--bg-secondary); border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic; color: var(--text-secondary); font-size: var(--fs-sm);
}
.case-card__footer {
  padding: var(--space-md) var(--space-xl); background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  display: flex; gap: var(--space-xl); font-size: var(--fs-sm); color: var(--text-muted);
}
.case-card__footer strong { color: var(--text-primary); }

/* ===== Process Timeline ===== */
.process-timeline { position: relative; max-width: 800px; margin: 0 auto; }
.process-timeline::before {
  content: ''; position: absolute; left: 40px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--sino-blue), var(--cura-teal));
}
.process-step { position: relative; padding-left: 100px; padding-bottom: var(--space-2xl); }
.process-step:last-child { padding-bottom: 0; }
.process-step__number {
  position: absolute; left: 0; top: 0; width: 80px; height: 80px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-2xl); font-weight: 800; color: var(--text-white);
  background: linear-gradient(135deg, var(--sino-blue), var(--cura-teal));
  box-shadow: var(--shadow-md); z-index: 1;
}
.process-step__title { font-size: var(--fs-xl); font-weight: 700; color: var(--sino-blue); margin-bottom: var(--space-sm); }
.process-step__desc { font-size: var(--fs-base); color: var(--text-secondary); margin-bottom: var(--space-md); }
.process-step__output {
  padding: var(--space-md) var(--space-lg); border-radius: var(--radius-md);
  background: var(--bg-blue-tint); font-size: var(--fs-sm); color: var(--sino-blue);
}
.process-step__output strong { font-weight: 700; }

/* Process Grid (homepage) */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
.process-grid-item {
  text-align: center; padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg); background: var(--text-white);
  border: 1px solid var(--border-light); transition: all var(--transition-base);
}
.process-grid-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--cura-teal-light); }
.process-grid-item__num {
  width: 48px; height: 48px; border-radius: 50%; margin: 0 auto var(--space-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-lg); font-weight: 800; color: var(--text-white);
  background: linear-gradient(135deg, var(--sino-blue), var(--cura-teal));
}
.process-grid-item h4 { font-size: var(--fs-base); font-weight: 700; color: var(--text-primary); }

/* ===== Why Choose Us ===== */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.why-card {
  padding: var(--space-2xl); border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(10px); transition: all var(--transition-base);
}
.section--dark .why-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.why-card__num { font-size: var(--fs-2xl); font-weight: 800; color: var(--heritage-amber-light); margin-bottom: var(--space-sm); }
.why-card h3 { font-size: var(--fs-lg); font-weight: 700; color: var(--text-white); margin-bottom: var(--space-sm); }
.why-card p { font-size: var(--fs-sm); color: rgba(255,255,255,0.7); }

/* ===== Contact Form ===== */
.contact-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--space-2xl); }
.contact-form {
  padding: var(--space-2xl); border-radius: var(--radius-lg);
  background: var(--text-white); border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: var(--space-lg); }
.form-group label { display: block; font-size: var(--fs-sm); font-weight: 600; color: var(--text-primary); margin-bottom: var(--space-xs); }
.form-group label .required { color: var(--color-error); }
.form-control {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border-default);
  border-radius: var(--radius-md); font-size: var(--fs-base); color: var(--text-primary);
  transition: all var(--transition-fast); background: var(--text-white);
}
.form-control:focus { outline: none; border-color: var(--sino-blue); box-shadow: 0 0 0 3px rgba(12,68,124,0.1); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }

.form-note { font-size: var(--fs-sm); color: var(--text-muted); margin-top: var(--space-md); }

.contact-info { display: flex; flex-direction: column; gap: var(--space-lg); }
.contact-info-card {
  padding: var(--space-lg); border-radius: var(--radius-lg);
  background: var(--text-white); border: 1px solid var(--border-light);
  display: flex; align-items: flex-start; gap: var(--space-md); transition: all var(--transition-base);
}
.contact-info-card:hover { box-shadow: var(--shadow-md); }
a.contact-info-card { text-decoration: none; color: inherit; cursor: pointer; }
a.contact-info-card:hover { border-color: var(--cura-teal); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.contact-info-card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-md); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  background: var(--bg-blue-tint);
}
.contact-info-card__label { font-size: var(--fs-sm); color: var(--text-muted); margin-bottom: 2px; }
.contact-info-card__value { font-size: var(--fs-base); font-weight: 600; color: var(--text-primary); }

.contact-emergency {
  padding: var(--space-xl); border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--sino-blue), var(--cura-teal));
  color: var(--text-white); text-align: center;
}
.contact-emergency h3 { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-sm); }
.contact-emergency p { font-size: var(--fs-2xl); font-weight: 800; }

/* ===== Footer ===== */
.footer { background: var(--sino-blue-dark); color: rgba(255,255,255,0.7); padding: var(--space-3xl) 0 var(--space-xl); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer__brand img { height: 44px; margin-bottom: var(--space-md); }
.footer__brand p { font-size: var(--fs-sm); max-width: 320px; }
.footer__col h4 { font-size: var(--fs-base); font-weight: 600; color: var(--text-white); margin-bottom: var(--space-md); }
.footer__col ul li { margin-bottom: var(--space-sm); }
.footer__col ul li a { font-size: var(--fs-sm); color: rgba(255,255,255,0.6); transition: color var(--transition-fast); }
.footer__col ul li a:hover { color: var(--text-white); }
.footer__bottom {
  padding-top: var(--space-xl); border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; align-items: center; font-size: var(--fs-sm);
  color: rgba(255,255,255,0.5); flex-wrap: wrap; gap: var(--space-md);
}
.footer__social { display: flex; gap: var(--space-md); }
.footer__social a { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.1); font-size: 16px; transition: all var(--transition-fast); }
.footer__social a:hover { background: var(--cura-teal); color: var(--text-white); transform: translateY(-2px); }

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--sino-blue), var(--sino-blue-light));
  color: var(--text-white); text-align: center; padding: var(--space-3xl) 0;
}
.cta-section h2 { font-size: var(--fs-4xl); font-weight: 700; margin-bottom: var(--space-md); }
.cta-section p { font-size: var(--fs-lg); color: rgba(255,255,255,0.8); margin-bottom: var(--space-xl); }

/* ===== WhatsApp Float Button ===== */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: var(--z-fixed);
  width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: #25D366; color: white; font-size: 28px; box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: all var(--transition-base); animation: float-pulse 2s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37,211,102,0.6); }
@keyframes float-pulse { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* ===== Scroll Reveal Animation ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== RTL Support ===== */
[dir="rtl"] .navbar__menu { direction: rtl; }
[dir="rtl"] .hero__content { text-align: right; }
[dir="rtl"] .case-card__quote { border-left: none; border-right: 3px solid var(--heritage-amber); border-radius: var(--radius-md) 0 0 var(--radius-md); }
[dir="rtl"] .process-timeline::before { left: auto; right: 40px; }
[dir="rtl"] .process-step { padding-left: 0; padding-right: 100px; }
[dir="rtl"] .process-step__number { left: auto; right: 0; }
[dir="rtl"] .lang-switcher__menu { right: auto; left: 0; }
[dir="rtl"] .whatsapp-float { right: auto; left: 24px; }

/* ===== Page Hero (inner pages) ===== */
.page-hero {
  background: linear-gradient(135deg, var(--bg-blue-tint), var(--bg-teal-tint));
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
  text-align: center;
}
.page-hero h1 { font-size: var(--fs-4xl); font-weight: 800; color: var(--sino-blue); margin-bottom: var(--space-md); }
.page-hero p { font-size: var(--fs-lg); color: var(--text-secondary); max-width: 640px; margin: 0 auto; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root { --fs-5xl: 2.5rem; --fs-4xl: 2rem; --container-padding: 20px; }
  .hero__inner { gap: var(--space-2xl); }
  .hero__visual { flex: 0 0 300px; }
  .hero__shield { width: 280px; height: 280px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .experts-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer__col:nth-child(4) { grid-column: span 3; }
}

@media (max-width: 768px) {
  :root { --fs-5xl: 2rem; --fs-4xl: 1.75rem; --fs-3xl: 1.5rem; --nav-height: 64px; --container-padding: 16px; --space-4xl: 3rem; --space-3xl: 2rem; }

  .navbar__menu {
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: var(--text-white); flex-direction: column; align-items: stretch;
    padding: var(--space-md) var(--container-padding); gap: 0;
    border-bottom: 1px solid var(--border-light); box-shadow: var(--shadow-lg);
    transform: translateY(-150%); transition: transform var(--transition-base); z-index: var(--z-sticky);
  }
  .navbar__menu.open { transform: translateY(0); }
  .navbar__menu a { padding: 14px 0; border-bottom: 1px solid var(--border-light); font-size: var(--fs-base); }
  .navbar__menu a:last-child { border-bottom: none; }
  .navbar__toggle { display: flex; }
  .navbar__actions { gap: var(--space-sm); }

  .hero { min-height: auto; padding: var(--space-3xl) 0; }
  .hero__inner { flex-direction: column-reverse; text-align: center; gap: var(--space-xl); }
  .hero__badge { margin: 0 auto; }
  .hero__desc { margin: 0 auto var(--space-xl); }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; gap: var(--space-xl); }
  .hero__visual { flex: 0 0 auto; }
  .hero__shield { width: 200px; height: 200px; }

  .services-grid { grid-template-columns: 1fr; }
  .hospitals-grid { grid-template-columns: 1fr; }
  .experts-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer__bottom { flex-direction: column; text-align: center; }

  .process-timeline::before { left: 24px; }
  .process-step { padding-left: 64px; }
  .process-step__number { width: 48px; height: 48px; font-size: var(--fs-base); }

  .section-header h2 { font-size: var(--fs-3xl); }
  .lang-switcher__btn span { display: none; }
}

@media (max-width: 480px) {
  .hero__title { font-size: var(--fs-3xl); }
  .hero__stats { gap: var(--space-md); }
  .hero__stat-value { font-size: var(--fs-2xl); }
  .process-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero__actions { flex-direction: column; }
  .whatsapp-float { width: 48px; height: 48px; font-size: 24px; bottom: 16px; right: 16px; }
}

/* ===== Print ===== */
@media print { .navbar, .whatsapp-float, .footer { display: none; } body { color: black; } }