/* ===== message.html 页面专属样式 ===== */

.page-banner {
  position: relative;
  height: 320px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,35,50,0.85) 0%, rgba(0,137,207,0.65) 100%);
}

.page-banner-content h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 2px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.message-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 50px;
  align-items: start;
}

.message-left h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.message-left .en-title {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.message-left .desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 30px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
}

.contact-info-item:last-child {
  border-bottom: none;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--theme-color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--theme-color);
  transition: var(--transition);
}

.contact-info-item:hover .contact-info-icon {
  background: var(--theme-color);
  color: #fff;
}

.contact-info-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.message-form-card {
  background: #fff;
  padding: 36px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.message-form-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group label .required {
  color: #e74c3c;
  margin-left: 2px;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 11px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  background: #fafbfc;
  color: var(--text-primary);
}

.form-group input::placeholder, .form-group textarea::placeholder {
  color: #bbb;
}

.form-group input:hover, .form-group textarea:hover {
  border-color: #ccc;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--theme-color);
  box-shadow: 0 0 0 3px rgba(0,137,207,0.1);
  background: #fff;
}

.form-group textarea {
  height: 150px;
  resize: vertical;
  line-height: 1.7;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.btn-submit {
  width: 100%;
  padding: 13px 32px;
  background: var(--theme-color);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  letter-spacing: 1px;
}

.btn-submit:hover {
  background: var(--theme-color-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,137,207,0.3);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

.form-group.error input, .form-group.error textarea {
  border-color: #e74c3c;
  box-shadow: 0 0 0 3px rgba(231,76,60,0.1);
}

.form-group .error-msg {
  font-size: 12px;
  color: #e74c3c;
  margin-top: 6px;
  display: none;
}

.form-group.error .error-msg {
  display: block;
}

@media (max-width: 1024px) {
  .message-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .message-section {
    padding: 50px 0;
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
  .nav-inner {
    height: 60px;
    padding: 0 16px;
  }
  .nav-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 70px 0 20px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 100;
    overflow-y: auto;
  }
  .nav-menu.open {
    right: 0;
  }
  .nav-menu > li > a {
    padding: 12px 24px;
    line-height: normal;
    font-size: 15px;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav-menu > li .submenu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border-radius: 0;
    padding: 0 0 0 20px;
  }
  .nav-search {
    margin: 12px 24px;
  }
  .mobile-toggle {
    display: flex;
  }
  .mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  .mobile-overlay.visible {
    opacity: 1;
    visibility: visible;
  }
  .page-banner {
    height: 220px;
  }
  .page-banner-content h1 {
    font-size: 26px;
  }
  .page-banner-content .subtitle {
    font-size: 13px;
  }
  .message-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .message-left h2 {
    font-size: 22px;
  }
  .message-form-card {
    padding: 24px;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .section-header h2 {
    font-size: 22px;
  }
  .container {
    padding: 0 16px;
  }
  .message-section {
    padding: 40px 0;
  }
  .back-to-top {
    bottom: 80px;
    right: 16px;
  }
}

@media (max-width: 480px) {
  .page-banner {
    height: 180px;
  }
  .page-banner-content h1 {
    font-size: 22px;
  }
  .breadcrumb {
    font-size: 12px;
  }
  .message-form-card {
    padding: 20px 16px;
  }
  .message-section {
    padding: 30px 0;
  }
}