/* form.css — 表单+按钮+交互（联系页/留言页加载） */

/* === Form Base === */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text);
  -webkit-transition: border-color 0.1s;
  transition: border-color 0.1s;
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
}

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

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

.form-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.form-error {
  font-size: 12px;
  color: #c0392b;
  margin-top: 4px;
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea {
  border-color: #c0392b;
}

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

/* === Button === */
.btn {
  display: inline-block;
  padding: 10px 24px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  border: none;
  outline: none;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

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

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

.btn-accent {
  background: var(--color-accent);
  color: var(--color-dark);
}

.btn-accent:hover {
  background: #c09000;
  color: var(--color-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

.btn-block {
  display: block;
  width: 100%;
}

/* === Contact Layout === */
.contact-layout {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  gap: 48px;
}

.contact-info {
  -webkit-box-flex: 0;
  -webkit-flex: 0 0 380px;
  -ms-flex: 0 0 380px;
  flex: 0 0 380px;
}

.contact-form-wrap {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
}

.contact-info-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 32px;
  margin-bottom: 24px;
}

.contact-info-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--color-text);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.contact-info-item {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-accent);
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 14px;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.contact-info-value {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--color-text);
}

/* === FAQ === */
.faq-item {
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.faq-question {
  padding: 16px 20px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 18px;
  color: var(--color-primary);
}

.faq-item.open .faq-question::after {
  content: '-';
}

.faq-answer {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* === Map Placeholder === */
.map-placeholder {
  width: 100%;
  height: 300px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* === 404 Page === */
.page-404 {
  background: var(--color-dark);
  min-height: 100vh;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  text-align: center;
  padding: 48px 20px;
}

.page-404-code {
  font-family: var(--font-display);
  font-size: 120px;
  font-weight: 500;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.page-404-title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-white);
  margin-bottom: 12px;
}

.page-404-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 32px;
}

/* === Responsive === */
@media (max-width: 767px) {
  .contact-layout {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  .contact-info {
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
  }
  .page-404-code { font-size: 80px; }
}