/* ===== 页面专属：联系我们 (page-contact) ===== */
.page-contact {
  --contact-bg: var(--mineral-cream, #F5F0E8);
  --contact-card-bg: var(--mineral-terra, #C07A5A);
  --contact-gold: var(--primary-gold, #F0C040);
  --contact-text-dark: var(--text-dark, #1A1A1A);
  --contact-text-light: #FFFFFF;
  --contact-radius: var(--radius, 16px);
  --contact-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  --contact-line-height: 1.6;

  background-color: var(--contact-bg);
  color: var(--contact-text-dark);
  font-family: var(--font-body, 'Inter', sans-serif);
  line-height: var(--contact-line-height);
  padding: 2rem 1.5rem 3rem;
  min-height: 80vh;
}

/* ---- Hero 区 ---- */
.contact-hero {
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  padding: 0 0.5rem;
}

.contact-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--mineral-gray, #7A7A7A);
  margin-bottom: 1rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.contact-hero .breadcrumb a {
  color: var(--contact-gold);
  text-decoration: none;
  transition: opacity var(--transition, 0.3s);
}

.contact-hero .breadcrumb a:hover {
  opacity: 0.75;
}

.contact-hero .breadcrumb__sep {
  color: var(--mineral-gray, #7A7A7A);
}

.contact-hero__title {
  font-family: var(--font-heading, 'Playfair Display', serif);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 700;
  color: var(--primary-deep-purple, #2B0F4C);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.contact-hero__desc {
  font-size: 1.1rem;
  color: var(--mineral-gray, #7A7A7A);
  max-width: 540px;
  margin: 0;
}

.highlight--gold {
  color: var(--contact-gold);
  font-weight: 600;
}

/* ---- 左右分栏容器 ---- */
.contact-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ---- Section 标签 ---- */
.section-label {
  font-family: var(--font-heading, 'Playfair Display', serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-deep-purple, #2B0F4C);
  margin: 0 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mono-index {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--contact-gold);
  background: rgba(240, 192, 64, 0.12);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

/* ===== 左侧：表单区 ===== */
.contact-form-section {
  background: #FFFFFF;
  border-radius: var(--contact-radius);
  padding: 2rem 1.5rem;
  box-shadow: var(--contact-shadow);
  position: relative;
}

/* ---- 表单字段 ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-deep-purple, #2B0F4C);
  letter-spacing: 0.02em;
}

.form-field input,
.form-field textarea {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  padding: 0.75rem 0.5rem 0.65rem;
  border: none;
  border-bottom: 2px solid rgba(42, 15, 76, 0.15);
  background: transparent;
  color: var(--contact-text-dark);
  outline: none;
  transition: border-color var(--transition, 0.3s);
  border-radius: 0;
  width: 100%;
  box-sizing: border-box;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--mineral-gray, #7A7A7A);
  opacity: 0.6;
}

.form-field textarea {
  resize: vertical;
  min-height: 80px;
}

/* 金色底部线条 —— 动画 */
.form-field__line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--contact-gold);
  transition: width 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
  pointer-events: none;
}

.form-field input:focus + .form-field__line,
.form-field textarea:focus + .form-field__line,
.form-field input:focus ~ .form-field__line,
.form-field textarea:focus ~ .form-field__line {
  width: 100%;
}

/* 兼容 :focus-within */
.form-field:focus-within .form-field__line {
  width: 100%;
}

.form-field--textarea {
  gap: 0.2rem;
}

/* ---- 表单操作区 ---- */
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: 0.5rem;
}

.form-actions .btn--primary {
  background: linear-gradient(135deg, var(--contact-gold), #D4A830);
  color: var(--primary-deep-purple, #2B0F4C);
  border: none;
  padding: 0.75rem 2.2rem;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-btn, 9999px);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform var(--transition, 0.3s), box-shadow var(--transition, 0.3s);
  box-shadow: 0 4px 14px rgba(240, 192, 64, 0.35);
}

.form-actions .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 192, 64, 0.5);
}

.form-actions .btn--primary:active {
  transform: translateY(0);
}

.form-actions__hint {
  font-size: 0.8rem;
  color: var(--mineral-gray, #7A7A7A);
  margin: 0;
  font-style: italic;
}

/* ---- 信任徽章 ---- */
.form-trust {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(42, 15, 76, 0.08);
}

.form-trust__badge {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 12px;
  flex-shrink: 0;
}

.form-trust__text {
  font-size: 0.85rem;
  color: var(--mineral-gray, #7A7A7A);
  margin: 0;
  line-height: 1.5;
}

/* ---- 提交成功消息（:target） ---- */
.form-success {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.97);
  border-radius: var(--contact-radius);
  z-index: 10;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.form-success:target {
  display: flex;
}

.form-success__inner {
  max-width: 380px;
}

.form-success__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-neon, #00D4AA);
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.form-success__title {
  font-family: var(--font-heading, 'Playfair Display', serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-deep-purple, #2B0F4C);
  margin: 0 0 0.5rem;
}

.form-success__desc {
  font-size: 0.95rem;
  color: var(--mineral-gray, #7A7A7A);
  margin: 0 0 1.5rem;
}

.form-success .btn--outline {
  display: inline-block;
  border: 2px solid var(--contact-gold);
  color: var(--primary-deep-purple, #2B0F4C);
  background: transparent;
  padding: 0.6rem 2rem;
  border-radius: var(--radius-btn, 9999px);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition, 0.3s), color var(--transition, 0.3s);
}

.form-success .btn--outline:hover {
  background: var(--contact-gold);
  color: var(--primary-deep-purple, #2B0F4C);
}

/* ===== 右侧：直接联系 ===== */
.contact-info-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ---- 联系卡片 ---- */
.contact-info-card {
  background: var(--contact-card-bg);
  border-radius: var(--contact-radius);
  padding: 2rem 1.5rem 1.8rem;
  color: var(--contact-text-light);
  box-shadow: var(--contact-shadow);
  border: 1px solid rgba(240, 192, 64, 0.25);
  position: relative;
  overflow: hidden;
}

/* 装饰图 */
.contact-info-card__decoration {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 120px;
  height: 120px;
  opacity: 0.12;
  pointer-events: none;
  z-index: 1;
}

.contact-info-card__brand-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.contact-info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: relative;
  z-index: 2;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.contact-info-item__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  color: var(--contact-gold);
  transition: background var(--transition, 0.3s), transform var(--transition, 0.3s);
}

.contact-info-item:hover .contact-info-item__icon {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.05);
}

.contact-info-item__body {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.contact-info-item__label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.75;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.contact-info-item__value {
  font-size: 0.95rem;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
  word-break: break-word;
}

.contact-info-item__value a,
.contact-info-item__value[href] {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.3);
  transition: text-decoration-color var(--transition, 0.3s);
}

.contact-info-item__value a:hover,
.contact-info-item__value[href]:hover {
  text-decoration-color: var(--contact-gold);
}

.contact-info-item__value--address {
  font-size: 0.88rem;
  line-height: 1.5;
}

/* 地址悬浮详情 */
.contact-info-item__value--address {
  position: relative;
  cursor: default;
}

.contact-info-item__value--address:hover::after {
  content: "此地址为联系地址，用于信件与来访";
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  background: var(--primary-deep-purple, #2B0F4C);
  color: var(--contact-text-light);
  font-size: 0.75rem;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  white-space: nowrap;
  max-width: 260px;
  white-space: normal;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 20;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 400;
}

/* 卡片备注 */
.contact-info-card__note {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
  line-height: 1.6;
  opacity: 0.9;
  position: relative;
  z-index: 2;
}

.contact-info-card__note p {
  margin: 0;
}

.contact-info-card__note strong {
  font-weight: 600;
}

/* ---- 快速链接 ---- */
.contact-quick-links {
  background: #FFFFFF;
  border-radius: var(--contact-radius);
  padding: 1.2rem 1.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(240, 192, 64, 0.15);
}

.contact-quick-links__title {
  font-family: var(--font-heading, 'Playfair Display', serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-deep-purple, #2B0F4C);
  margin: 0 0 0.6rem;
}

.contact-quick-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-quick-links__link {
  color: var(--contact-card-bg, #C07A5A);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition, 0.3s), padding-left var(--transition, 0.3s);
  display: inline-block;
}

.contact-quick-links__link:hover {
  color: var(--contact-gold);
  padding-left: 4px;
}

/* ===== 响应式 ===== */

/* 平板及以上：左右分栏 */
@media (min-width: 768px) {
  .page-contact {
    padding: 3rem 2rem 4rem;
  }

  .contact-main {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .contact-form-section {
    padding: 2.5rem 2rem;
  }

  .contact-info-card {
    padding: 2.5rem 2rem 2rem;
  }

  .contact-info-card__decoration {
    width: 160px;
    height: 160px;
    top: -15px;
    right: -15px;
    opacity: 0.1;
  }

  .form-trust__badge {
    width: 80px;
    height: 80px;
  }
}

/* 桌面宽屏：优化留白与尺寸 */
@media (min-width: 1024px) {
  .page-contact {
    padding: 4rem 3rem 5rem;
  }

  .contact-main {
    gap: 3rem;
  }

  .contact-hero {
    margin-bottom: 3.5rem;
  }

  .contact-hero__title {
    font-size: 3.6rem;
  }

  .contact-form-section {
    padding: 3rem 2.5rem;
  }

  .contact-info-card {
    padding: 3rem 2.5rem 2.5rem;
  }

  .contact-info-card__decoration {
    width: 200px;
    height: 200px;
    top: -20px;
    right: -20px;
    opacity: 0.08;
  }

  .contact-info-item__value {
    font-size: 1rem;
  }

  .contact-info-item__value--address {
    font-size: 0.95rem;
  }

  .form-trust__badge {
    width: 100px;
    height: 100px;
  }
}

/* 大屏：限制最大宽度后居中 */
@media (min-width: 1400px) {
  .page-contact {
    padding: 4rem calc((100vw - 1200px) / 2) 5rem;
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .form-field__line {
    transition: none;
  }

  .form-actions .btn--primary {
    transition: none;
  }

  .contact-info-item__icon {
    transition: none;
  }

  .contact-quick-links__link {
    transition: none;
  }

  .form-success .btn--outline {
    transition: none;
  }

  .form-field input:focus + .form-field__line,
  .form-field textarea:focus + .form-field__line {
    width: 100%;
  }

  .form-field:focus-within .form-field__line {
    width: 100%;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-contact {
    background: #fff;
    color: #000;
    padding: 1rem;
  }

  .contact-form-section,
  .contact-info-card,
  .contact-quick-links {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .form-actions .btn--primary,
  .form-success {
    display: none;
  }

  .contact-info-card__decoration {
    opacity: 0.05;
  }
}