/* =======================================================
   contact.css — 联系我们页独有样式
   依赖：global.css（Design Tokens / 导航 / 页脚 / 通用工具）
   ======================================================= */

/* ===========================
   Hero
   =========================== */
.hero {
  background: var(--brand-dark);
  min-height: 385px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 80px 24px 40px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(10,158,206,.2) 0%, transparent 60%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  max-width: 800px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.hero h2 {
  font-family: var(--font-sans);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 300;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1rem;
  opacity: 0.9;
}

/* ===========================
   Sections
   =========================== */
.section {
  padding: 4rem 24px;
  max-width: var(--container);
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--brand-dark);
  margin-bottom: 3rem;
}

/* ===========================
   Contact Cards
   =========================== */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.contact-card {
  background: var(--brand-light);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition);
}

.contact-card .iconfont {
  font-size: 50px;
  color: var(--brand-primary);
  margin-bottom: 1rem;
  display: block;
}

.contact-card:hover {
  transform: translateY(-5px);
}

.contact-card h3 {
  font-family: var(--font-serif);
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.contact-card p {
  color: #666;
  font-size: 0.95rem;
}

/* ===========================
   Contact Form
   =========================== */
.contact-form-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-form {
  background: white;
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-sans);
  color: var(--brand-dark);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid #ddd;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(4,82,151,.1);
}

.form-group textarea {
  resize: vertical;
}

.form-error {
  color: #e74c3c;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: none;
}

.form-error.show {
  display: block;
}

.submit-btn {
  background: var(--brand-primary);
  color: white;
  padding: 1rem 3rem;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}

.submit-btn:hover {
  background: var(--brand-dark);
}

.success-message {
  display: none;
  background: var(--brand-light);
  padding: 3rem;
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--brand-dark);
  font-family: var(--font-serif);
  font-size: 1.5rem;
}

.success-message.show {
  display: block;
}

/* ===========================
   QR Code Section
   =========================== */
.qr-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 1rem;
}

.qr-placeholder {
  background: #f0f0f0;
  height: 200px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  font-family: var(--font-sans);
}

.qr-note {
  text-align: center;
  color: #666;
  font-family: var(--font-sans);
}

/* ===========================
   Map Placeholder
   =========================== */
.map-placeholder {
  max-width: var(--container);
  margin: 2rem auto;
  padding: 0 24px;
}

.map-placeholder iframe {
  width: 100%;
  height: 400px;
  border: none;
  border-radius: var(--radius-md);
}

/* ===========================
   CTA
   =========================== */
.cta {
  background: var(--brand-primary);
  color: white;
  padding: 4rem 24px;
  text-align: center;
}

.cta h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.cta-btn {
  background: white;
  color: var(--brand-primary);
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 500;
  transition: background var(--transition);
}

.cta-btn:hover {
  background: var(--brand-light);
}

/* ===========================
   Scroll Reveal
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .contact-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .contact-cards {
    grid-template-columns: 1fr;
  }

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

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero h2 {
    font-size: 1.2rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }
}