/* ===== CSS Variables ===== */
:root {
  --color-primary: #003A83;
  --color-primary-light: #0055b3;
  --color-primary-dark: #002266;
  --color-primary-subtle: #e8f0f8;
  --color-accent: #E8752A;
  --color-accent-hover: #d4661f;
  --color-accent-light: #fef3eb;
  --color-success: #2e7d32;
  
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  
  --surface-white: #ffffff;
  --surface-light: #f8f9fa;
  --surface-dark: #1a1a2e;
  
  --font-primary: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-cjk: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1rem + 1.25vw, 1.75rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.5vw, 2.25rem);
  --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-primary), var(--font-cjk);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--gray-700);
  background: var(--surface-white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--duration-fast) var(--ease-smooth); }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary), var(--font-cjk);
  font-weight: 700;
  line-height: 1.3;
  color: var(--gray-900);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.section { padding-block: var(--space-4xl); }
.section-alt { background: var(--surface-light); }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo-img {
  height: 64px;
  width: auto;
}

.nav {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

@media (min-width: 1024px) {
  .nav { display: flex; }
}

.nav-link {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

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

.lang-switch {
  display: none;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
}

@media (min-width: 768px) {
  .lang-switch { display: flex; align-items: center; gap: var(--space-xs); }
}

.lang-switch:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-apply {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-accent);
  color: white;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-smooth);
  box-shadow: 0 2px 8px rgba(232, 117, 42, 0.3);
}

.btn-apply:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232, 117, 42, 0.4);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .menu-toggle { display: none; }
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-smooth);
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface-white);
  padding: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-smooth);
  overflow-y: auto;
  z-index: 999;
}

.mobile-menu.active { transform: translateX(0); }

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-md);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.mobile-menu-footer {
  margin-top: auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--gray-200);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active { opacity: 1; }

.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.70) 0%, rgba(255,255,255,0.70) 50%, rgba(232,240,248,0.70) 100%);
}

.hero-slide {
  background-image: url('https://www.med.stu.edu.cn/upload_files/photo/20241024/1729759718715697.png');
  background-size: cover;
  background-position: center;
}

.hero-dots {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0, 58, 131, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-dot.active {
  background: var(--color-primary);
  transform: scale(1.3);
}

@media (max-width: 768px) {
  .hero-dots { bottom: 80px; }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: var(--space-4xl); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent-light);
  border: 1px solid rgba(232, 117, 42, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero-badge i { animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  margin-bottom: var(--space-lg);
  color: var(--gray-900);
}

.hero-title span { color: var(--color-primary); }

.hero-desc {
  font-size: var(--text-lg);
  color: var(--gray-600);
  margin-bottom: var(--space-xl);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-accent);
  color: white;
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-smooth);
  box-shadow: 0 4px 14px rgba(232, 117, 42, 0.35);
  border: none;
}

.hero-btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 117, 42, 0.4);
}

.hero-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  color: var(--gray-700);
  font-size: var(--text-base);
  font-weight: 600;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.hero-btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
}

.stat-card {
  padding: var(--space-lg);
  background: var(--surface-white);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--gray-500);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Page Header ===== */
.page-header {
  position: relative;
  padding-top: 72px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  padding-block: var(--space-4xl);
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://www.med.stu.edu.cn/upload_files/photo/20241024/1729759718715697.png') center/cover;
  opacity: 0.15;
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 { color: white; margin-bottom: var(--space-md); }

.page-header p {
  font-size: var(--text-lg);
  opacity: 0.9;
  max-width: 600px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
  opacity: 0.8;
}

.breadcrumb a:hover { opacity: 1; text-decoration: underline; }
.breadcrumb i { font-size: 0.75rem; }

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title { margin-bottom: var(--space-md); }

.section-desc {
  font-size: var(--text-lg);
  color: var(--gray-600);
}

/* ===== Quick Links ===== */
.quick-links-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .quick-links-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .quick-links-grid { grid-template-columns: repeat(4, 1fr); }
}

.quick-link-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--duration-normal) var(--ease-smooth);
}

.quick-link-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* ===== Quick Links Highlight Card ===== */
.quick-link-card.highlight {
  background: var(--surface-white);
  color: var(--gray-900);
  border: 2px solid var(--color-accent);
  position: relative;
  overflow: hidden;
}



.quick-link-card.highlight p { color: var(--gray-600); }

.quick-link-card.highlight .quick-link-icon {
  background: var(--color-accent);
  color: white;
  font-size: 1.5rem;
}

.quick-link-card.highlight .quick-link-arrow { color: var(--color-accent); }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--surface-white);
  color: var(--gray-900);
  text-align: center;
  position: relative;
  border-top: 1px solid var(--gray-200);
}

.cta-section h2 { color: var(--gray-900); }

.cta-section p {
  color: var(--gray-600);
  margin-bottom: var(--space-xl);
}

.quick-link-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
  font-size: 1.5rem;
}



.quick-link-card h3 { margin-bottom: var(--space-sm); }

.quick-link-card p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin-bottom: var(--space-lg);
}

.quick-link-arrow {
  position: absolute;
  bottom: var(--space-xl);
  right: var(--space-xl);
  color: var(--color-primary);
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.quick-link-card:hover .quick-link-arrow { transform: translateX(4px); }
.quick-link-card.highlight .quick-link-arrow { color: white; }

/* ===== Featured Programs ===== */
.featured-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .featured-grid { grid-template-columns: repeat(3, 1fr); }
}

.featured-card {
  padding: var(--space-2xl);
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--duration-normal) var(--ease-smooth);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.featured-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.featured-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.featured-card p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin-bottom: var(--space-lg);
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.featured-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.featured-link:hover { color: var(--color-accent); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

/* ===== Why SUMC ===== */
.why-grid {
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .why-grid { grid-template-columns: 1fr 1fr; }
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.why-item-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.why-item h4 { margin-bottom: var(--space-xs); }

.why-item p {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.why-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.why-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--color-primary);
  color: white;
  text-align: center;
}

.cta-content h2 { color: white; margin-bottom: var(--space-md); }

.cta-content p {
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

/* ===== About Page ===== */
.about-content-grid {
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-content-grid { grid-template-columns: 1fr 1fr; }
}

.about-image-large {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image-large img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.about-text h3 { margin-bottom: var(--space-lg); }

.about-text p {
  color: var(--gray-600);
  margin-bottom: var(--space-lg);
}

.about-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--surface-light);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.about-item-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.about-item-content h4 { margin-bottom: var(--space-xs); }

.about-item-content p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin: 0;
}

.milestones {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .milestones { grid-template-columns: repeat(4, 1fr); }
}

.milestone-item {
  text-align: center;
  padding: var(--space-xl);
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.milestone-year {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.milestone-text {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

/* ===== Programs Page ===== */
.programs-filter {
  background: var(--surface-white);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-2xl);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-select {
  padding: var(--space-sm) var(--space-md);
  padding-right: var(--space-2xl);
  font-size: var(--text-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  background: var(--surface-white);
  cursor: pointer;
  min-width: 160px;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.filter-select:hover, .filter-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

.filter-reset {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.filter-reset:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.results-count {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  color: var(--gray-500);
}

.programs-masonry {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  align-items: stretch;
}

.program-card {
  position: relative;
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--duration-normal) var(--ease-smooth);
  display: flex;
  flex-direction: column;
}

.program-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.program-header {
  padding: var(--space-lg) var(--space-xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  min-height: 140px;
  display: flex;
  flex-direction: column;
}

/* 本科项目 - 绿色系 */
.program-card.undergraduate .program-header {
  background: linear-gradient(135deg, #0d9488, #0f766e);
}

/* 硕士项目 - 蓝色系 */
.program-card.master .program-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

/* 博士项目 - 紫色系 */
.program-card.doctoral .program-header {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
}

/* PDF下载卡片 - 活泼渐变色 */
.program-card.master-pdf {
  border: 2px dashed var(--color-accent);
  background: linear-gradient(135deg, #fff7ed, #fffbeb);
}

.program-card.master-pdf .program-header {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

.program-card.master-pdf .program-icon {
  background: rgba(255, 255, 255, 0.3);
}

.program-card.doctoral-pdf {
  border: 2px dashed #10b981;
  background: linear-gradient(135deg, #ecfdf5, #f0fdfa);
}

.program-card.doctoral-pdf .program-header {
  background: linear-gradient(135deg, #059669, #047857);
}

.program-card.doctoral-pdf .program-icon {
  background: rgba(255, 255, 255, 0.3);
}

.program-card.doctoral-pdf .program-link,
.program-card.master-pdf .program-link {
  color: var(--color-accent);
  font-weight: 600;
}

.program-card.doctoral-pdf .program-link {
  color: #059669;
}

.program-card.doctoral-pdf .program-link:hover {
  color: #047857;
}

.program-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  align-self: flex-start;
}

.program-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.program-title {
  font-size: var(--text-lg);
  color: white;
  line-height: 1.3;
  min-height: 2.6em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.program-subtitle {
  font-size: var(--text-xs);
  opacity: 0.9;
  margin-top: var(--space-sm);
}

.program-body { 
  padding: var(--space-lg) var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.program-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.info-item {
  text-align: center;
  padding: var(--space-sm);
  background: var(--surface-light);
  border-radius: var(--radius-md);
  min-width: 0;
}

.info-label {
  font-size: 11px;
  color: var(--gray-500);
  margin-bottom: 2px;
  white-space: nowrap;
}

.info-value {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gray-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.program-desc {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin-bottom: var(--space-md);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.program-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--gray-100);
  width: 100%;
  justify-content: center;
}
  font-weight: 600;
  color: var(--color-primary);
}

.program-link:hover { color: var(--color-accent); }

.program-link i {
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.program-link:hover i { transform: translateX(4px); }

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-4xl);
  color: var(--gray-500);
}

.no-results i {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  opacity: 0.3;
}

/* ===== Campus Page ===== */
.campus-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .campus-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .campus-grid { grid-template-columns: repeat(3, 1fr); }
}

.campus-card {
  position: relative;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
}

.campus-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.2) 50%, transparent 100%);
}

.campus-card-content {
  position: relative;
  z-index: 1;
  color: white;
}

.campus-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.campus-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.campus-card-desc {
  font-size: var(--text-sm);
  opacity: 0.9;
}

.info-cards-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .info-cards-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .info-cards-grid { grid-template-columns: repeat(4, 1fr); }
}

.info-card {
  padding: var(--space-xl);
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.info-card-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.5rem;
  margin: 0 auto var(--space-lg);
}

.info-card h4 { margin-bottom: var(--space-sm); }

.info-card p {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

/* ===== Apply Page ===== */
.wizard-container {
  max-width: 900px;
  margin: 0 auto;
}

.wizard-progress {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-3xl);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.wizard-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.wizard-step-number {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-200);
  color: var(--gray-500);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-smooth);
}

.wizard-step.active .wizard-step-number {
  background: var(--color-primary);
  color: white;
}

.wizard-step.completed .wizard-step-number {
  background: var(--color-success);
  color: white;
}

.wizard-step-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-500);
  display: none;
}

@media (min-width: 640px) {
  .wizard-step-label { display: block; }
}

.wizard-step.active .wizard-step-label,
.wizard-step.completed .wizard-step-label {
  color: var(--gray-800);
}

.wizard-step-line {
  width: 40px;
  height: 2px;
  background: var(--gray-200);
}

.wizard-panel {
  display: none;
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.wizard-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.wizard-panel-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.wizard-panel-title i { color: var(--color-primary); }

.form-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .form-grid { grid-template-columns: repeat(2, 1fr); }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group.full-width { grid-column: 1 / -1; }

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-700);
}

.form-label .required { color: var(--color-accent); }

.form-input,
.form-select,
.form-textarea {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 58, 131, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.doc-upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.doc-upload-area:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.doc-upload-area i {
  font-size: 2.5rem;
  color: var(--gray-400);
  margin-bottom: var(--space-md);
}

.doc-upload-area p {
  color: var(--gray-600);
  margin-bottom: var(--space-sm);
}

.doc-upload-area .hint {
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.wizard-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

.wizard-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.wizard-btn-prev {
  color: var(--gray-600);
  border: 1px solid var(--gray-300);
}

.wizard-btn-prev:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.wizard-btn-next {
  background: var(--color-primary);
  color: white;
}

.wizard-btn-next:hover { background: var(--color-primary-dark); }

.wizard-btn-submit {
  background: var(--color-accent);
  color: white;
}

.wizard-btn-submit:hover { background: var(--color-accent-hover); }

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
}

.form-checkbox input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
}

.form-checkbox span {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.success-panel {
  text-align: center;
  padding: var(--space-4xl);
}

.success-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-success);
  color: white;
  font-size: 2.5rem;
  border-radius: 50%;
  margin: 0 auto var(--space-xl);
}

.success-panel h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.success-panel p {
  color: var(--gray-600);
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  gap: var(--space-3xl);
}

@media (min-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-card h4 { margin-bottom: var(--space-xs); }

.contact-card p {
  color: var(--gray-600);
  font-size: var(--text-sm);
}

.contact-form-container {
  background: var(--surface-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.contact-form-container h3 { margin-bottom: var(--space-xl); }

/* ===== Footer ===== */
.footer {
  background: var(--surface-dark);
  color: white;
  padding-block: var(--space-4xl);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr repeat(3, 1fr); }
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--gray-400);
  margin-top: var(--space-md);
  max-width: 280px;
}

.footer-links h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--gray-400);
}

.footer-links a:hover { color: white; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

.footer-links-row {
  display: flex;
  gap: var(--space-lg);
}

.footer-links-row a {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

.footer-links-row a:hover { color: white; }

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-smooth) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--ease-smooth);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}