/* ===== 联系我们页面样式 ===== */

.section-contact {
  padding: 80px 0;
  background: white;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
}

.contact-info h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.ci-desc {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.cc-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.cc-item:hover {
  background: white;
  box-shadow: var(--shadow-sm);
}

.cc-icon {
  font-size: 24px;
  width: 44px;
  height: 44px;
  background: rgba(0,102,255,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cc-body strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 3px;
}

.cc-body span {
  font-size: 14px;
  color: var(--text-mid);
}

.brand-contacts h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 14px;
}

.bc-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border-left: 3px solid;
  transition: var(--transition);
}

.bc-item.green {
  background: rgba(0,102,255,0.05);
  border-color: var(--primary);
}

.bc-item.blue {
  background: rgba(5,80,174,0.05);
  border-color: #0550ae;
}

.bc-item.purple {
  background: rgba(124,58,237,0.05);
  border-color: #7c3aed;
}

.bc-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.bc-item strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.bc-item p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.5;
}

/* 联系表单 */
.contact-form-wrap {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.form-header {
  margin-bottom: 28px;
}

.form-header h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-header p {
  font-size: 14px;
  color: var(--text-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.req { color: #e53e3e; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text-dark);
  background: white;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: auto;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #e53e3e;
}

.field-error {
  display: block;
  font-size: 12px;
  color: #e53e3e;
  margin-top: 5px;
  min-height: 16px;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.privacy-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mid);
  cursor: pointer;
}

.privacy-check input {
  width: auto;
  cursor: pointer;
}

.privacy-check a {
  color: var(--primary);
}

.submit-btn {
  min-width: 130px;
  justify-content: center;
}

/* 成功提示 */
.success-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.sb-icon {
  font-size: 56px;
  margin-bottom: 20px;
}

.success-box h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.success-box p {
  font-size: 15px;
  color: var(--text-mid);
  margin-bottom: 28px;
}

/* FAQ */
.section-faq {
  padding: 80px 0;
  background: var(--bg-light);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  box-shadow: var(--shadow-sm);
  border-color: rgba(0,102,255,0.2);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  user-select: none;
  gap: 16px;
}

.faq-q:hover {
  color: var(--primary);
}

.faq-arrow {
  flex-shrink: 0;
  transition: transform 0.3s;
  color: var(--text-light);
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}

.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 24px 20px;
}

.faq-a p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.8;
}

/* 响应式 */
@media (max-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px 20px; }
  .form-footer { flex-direction: column; align-items: flex-start; }
  .submit-btn { width: 100%; }
}