/* ===== 页面专属：联系我们 ===== */
.page-contact {
  --contact-bg: #FAFAFA;
  --info-panel-bg: #1A1A2E;
  --info-text: #FFFFFF;
  --info-accent-blue: #1E90FF;
  --info-accent-orange: #FF6B35;
  --form-bg: #FFFFFF;
  --form-border: #E0E0E0;
  --form-radius: 12px;
  --card-radius: 16px;
  --gap-lg: 48px;
  --gap-md: 32px;
  --gap-sm: 20px;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-focus: 0 0 0 3px rgba(30, 144, 255, 0.25);

  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  background: var(--contact-bg);
  color: var(--text-primary, #121212);
  padding: 32px 20px 60px;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
}

/* --- 面包屑 --- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 24px;
  color: #666;
}

.page-contact .breadcrumb-link {
  color: var(--info-accent-blue);
  text-decoration: none;
  transition: color 0.2s;
}

.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--info-accent-orange);
  outline: none;
}

.page-contact .breadcrumb-sep {
  color: #999;
  font-size: 12px;
}

.page-contact .breadcrumb-current {
  color: #333;
  font-weight: 600;
}

/* --- 页面标题 --- */
.page-contact .page-title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 8px;
  color: var(--info-panel-bg);
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
}

.page-contact .page-title::after {
  content: '';
  display: block;
  width: 72px;
  height: 6px;
  background: linear-gradient(90deg, var(--info-accent-blue), var(--info-accent-orange));
  border-radius: 3px;
  margin-top: 8px;
}

.page-contact .page-subtitle {
  font-size: 18px;
  color: #555;
  margin: 0 0 var(--gap-lg);
  font-weight: 400;
  max-width: 520px;
}

/* --- 两栏网格 --- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-md);
  margin-bottom: var(--gap-lg);
}

/* --- 左侧：联系信息面板 --- */
.page-contact .contact-info-panel {
  background: var(--info-panel-bg);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.page-contact .info-panel-bg {
  width: 100%;
  line-height: 0;
  overflow: hidden;
  max-height: 220px;
}

.page-contact .info-hero-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 400 / 300;
}

.page-contact .info-panel-content {
  padding: 28px 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-contact .info-heading {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--info-text);
  margin: 0 0 24px;
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 16px;
}

.page-contact .info-heading::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 5px;
  background: var(--info-accent-orange);
  border-radius: 3px;
}

/* --- 联系方式列表 --- */
.page-contact .info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-contact .info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-contact .info-icon-wrap {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.page-contact .info-icon-wrap svg {
  display: block;
  width: 28px;
  height: 28px;
}

.page-contact .info-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-contact .info-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
}

.page-contact .info-value {
  font-size: 17px;
  color: var(--info-text);
  text-decoration: none;
  font-weight: 500;
  word-break: break-word;
  transition: color 0.2s;
}

.page-contact .info-value[href]:hover,
.page-contact .info-value[href]:focus-visible {
  color: var(--info-accent-orange);
  outline: none;
}

.page-contact .info-value[href^="tel"] {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* --- 用途说明 --- */
.page-contact .info-note {
  margin-top: auto;
  padding-top: 24px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* --- 右侧：表单面板 --- */
.page-contact .contact-form-panel {
  background: var(--form-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
  padding: 28px 24px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.page-contact .form-panel-header {
  margin-bottom: 24px;
}

.page-contact .form-heading {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--info-panel-bg);
  margin: 0 0 8px;
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 16px;
}

.page-contact .form-heading::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 5px;
  background: var(--info-accent-blue);
  border-radius: 3px;
}

.page-contact .form-desc {
  font-size: 15px;
  color: #555;
  margin: 0;
  line-height: 1.5;
}

/* --- 表单字段 --- */
.page-contact .contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  position: relative;
  z-index: 1;
}

.page-contact .form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .field-label {
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

.page-contact .field-input,
.page-contact .field-select,
.page-contact .field-textarea {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 16px;
  padding: 12px 16px;
  border: 2px solid var(--form-border);
  border-radius: var(--form-radius);
  background: #FEFEFE;
  color: var(--text-primary);
  transition: border-color 0.25s, box-shadow 0.25s;
  width: 100%;
  box-sizing: border-box;
}

.page-contact .field-input:focus,
.page-contact .field-select:focus,
.page-contact .field-textarea:focus {
  outline: none;
  border-color: var(--info-accent-blue);
  box-shadow: var(--shadow-focus);
}

.page-contact .field-input::placeholder,
.page-contact .field-textarea::placeholder {
  color: #AAA;
}

.page-contact .field-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='8' viewBox='0 0 14 8'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%231E90FF' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
  cursor: pointer;
}

.page-contact .field-textarea {
  resize: vertical;
  min-height: 100px;
}

/* --- 表单操作区 --- */
.page-contact .form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
}

.page-contact .form-submit {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 17px;
  font-weight: 700;
  padding: 14px 40px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  background: var(--info-accent-orange);
  color: #fff;
  transition: background 0.3s, transform 0.15s, box-shadow 0.3s;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
  letter-spacing: 0.03em;
}

.page-contact .form-submit:hover,
.page-contact .form-submit:focus-visible {
  background: #e55a2b;
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
  transform: translateY(-2px);
  outline: none;
}

.page-contact .form-submit:active {
  transform: translateY(0);
}

.page-contact .form-hint {
  font-size: 14px;
  color: #777;
}

.page-contact .hint-phone {
  color: var(--info-accent-blue);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

.page-contact .hint-phone:hover,
.page-contact .hint-phone:focus-visible {
  color: var(--info-accent-orange);
  outline: none;
}

/* --- 表单反馈（预留 JS 交互） --- */
.page-contact .form-feedback {
  font-size: 14px;
  margin-top: 4px;
  min-height: 0;
  transition: all 0.3s;
}

.page-contact .form-feedback[data-form-feedback]:not(:empty) {
  padding: 12px 16px;
  border-radius: var(--form-radius);
  background: #E8F5E9;
  color: #2E7D32;
  border: 1px solid #A5D6A7;
}

/* --- 表单装饰图 --- */
.page-contact .form-decor {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 140px;
  height: auto;
  pointer-events: none;
  opacity: 0.12;
  z-index: 0;
  line-height: 0;
}

.page-contact .form-decor-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md, 8px) 0 0 0;
}

/* --- 底部内部链接 --- */
.page-contact .contact-foot-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  padding-top: 16px;
  border-top: 2px solid var(--form-border);
  font-size: 15px;
}

.page-contact .foot-links-label {
  color: #666;
  font-weight: 500;
}

.page-contact .foot-link {
  color: var(--info-accent-blue);
  text-decoration: none;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.page-contact .foot-link:hover,
.page-contact .foot-link:focus-visible {
  background: rgba(30, 144, 255, 0.1);
  color: var(--info-accent-orange);
  outline: none;
}

.page-contact .foot-link-sep {
  color: #CCC;
  font-weight: 300;
}

/* ===== 响应式：平板与桌面 ===== */
@media (min-width: 768px) {
  .page-contact {
    padding: 40px 32px 80px;
  }

  .page-contact .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--gap-lg);
    align-items: start;
  }

  .page-contact .contact-info-panel {
    position: sticky;
    top: 32px;
  }

  .page-contact .info-panel-bg {
    max-height: 200px;
  }

  .page-contact .info-panel-content {
    padding: 32px 28px 36px;
  }

  .page-contact .info-heading {
    font-size: 32px;
  }

  .page-contact .info-value {
    font-size: 18px;
  }

  .page-contact .contact-form-panel {
    padding: 36px 32px 40px;
  }

  .page-contact .form-heading {
    font-size: 32px;
  }

  .page-contact .form-decor {
    width: 180px;
    opacity: 0.15;
  }

  .page-contact .form-actions {
    flex-direction: row;
  }

  .page-contact .contact-foot-links {
    font-size: 16px;
    padding-top: 20px;
  }
}

@media (min-width: 1024px) {
  .page-contact {
    padding: 48px 40px 100px;
  }

  .page-contact .contact-grid {
    grid-template-columns: 1fr 1.3fr;
    gap: 56px;
  }

  .page-contact .info-panel-content {
    padding: 40px 32px 44px;
  }

  .page-contact .contact-form-panel {
    padding: 44px 40px 48px;
  }

  .page-contact .form-decor {
    width: 220px;
  }
}

/* ===== 窄屏微调 ===== */
@media (max-width: 420px) {
  .page-contact {
    padding: 20px 14px 40px;
  }

  .page-contact .info-panel-content {
    padding: 20px 16px 24px;
  }

  .page-contact .contact-form-panel {
    padding: 20px 16px 24px;
  }

  .page-contact .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .form-submit {
    width: 100%;
    text-align: center;
  }

  .page-contact .form-decor {
    display: none;
  }

  .page-contact .info-hero-img {
    aspect-ratio: 400 / 260;
  }
}

/* ===== 可访问性增强 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

.page-contact .field-input:user-invalid,
.page-contact .field-select:user-invalid,
.page-contact .field-textarea:user-invalid {
  border-color: var(--negative-red, #FF1744);
  box-shadow: 0 0 0 3px rgba(255, 23, 68, 0.15);
}

.page-contact .btn-accent:focus-visible {
  outline: 2px solid var(--info-accent-blue);
  outline-offset: 3px;
}

.page-contact {
  --negative-red: currentColor;
}