/* 关于我们页样式 */

/* 页面横幅 */
.sub-banner {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 3264 / 608;
  min-height: 240px;
  max-height: 380px;
  margin-top: 80px;
  margin-top: var(--header-height);
  overflow: hidden;
  background: #2a1d0e;
}

.sub-banner .bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.72;
}

.sub-banner .content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  z-index: 2;
}

.sub-banner h1 {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: 6px;
  margin-bottom: 8px;
}

.sub-banner .en {
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--color-primary-light);
  text-transform: uppercase;
}

/* ===== 公司概况 ===== */
.about-page {
  padding: 64px 0 72px;
}

.about-page .lead {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.about-page .page-title {
  font-size: 32px;
  text-align: center;
  margin-bottom: 44px;
  letter-spacing: 5px;
  color: var(--color-text);
}

.about-content {
  max-width: 920px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 2.1;
  color: var(--color-text-light);
}

.about-content p {
  margin-bottom: 20px;
  text-indent: 2em;
  text-align: justify;
}

.about-content p.em {
  font-size: 17px;
  color: var(--color-text);
  font-weight: 500;
  text-indent: 0;
  padding-left: 16px;
  border-left: 3px solid var(--color-primary);
}

/* 关键数据 */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 920px;
  margin: 56px auto 0;
  padding: 0;
  list-style: none;
}

.stats-row li {
  text-align: center;
  padding: 28px 12px;
  background: var(--color-bg-soft);
  border-top: 2px solid var(--color-primary);
}

.stats-row .num {
  font-size: 34px;
  font-weight: 600;
  color: var(--color-primary);
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.2;
}

.stats-row .num span {
  font-size: 15px;
  margin-left: 3px;
  font-weight: 400;
}

.stats-row .label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 2px;
}

/* ===== 主营业务 ===== */
.biz-block {
  background: var(--color-bg-soft);
  padding: 80px 0;
}

.block-intro {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-light);
  margin: -28px 0 40px;
  letter-spacing: 1px;
}

.biz-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.biz-item {
  background: #fff;
  padding: 26px 22px;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.biz-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 26px rgba(90, 67, 33, 0.12);
}

.biz-item .biz-no {
  font-size: 26px;
  font-weight: 600;
  color: #e4d9c6;
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: 12px;
}

.biz-item:hover .biz-no {
  color: var(--color-primary-light);
}

.biz-item h3 {
  font-size: 15.5px;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.6;
}

.biz-item p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--color-text-light);
}

/* ===== 生产基地与展示中心 ===== */
.base-block {
  padding: 80px 0;
}

.base-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.base-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 34px 32px;
}

.base-card .base-tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(138, 106, 58, 0.1);
  color: var(--color-primary);
  font-size: 12px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.base-card h3 {
  font-size: 21px;
  color: var(--color-text);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.base-addr {
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.base-card > p {
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 14px;
}

.base-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.base-card ul li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--color-text-light);
  border-top: 1px dashed #e8e2d8;
}

.base-card ul li:first-child {
  border-top: none;
}

.base-card ul li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 19px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.base-card ul b {
  color: var(--color-text);
  margin-right: 6px;
}

/* 厂区实拍 */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.factory-gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.factory-gallery img:hover {
  transform: scale(1.03);
}

/* ===== 团队与项目实践 ===== */
.team-block {
  background: var(--color-bg-soft);
  padding: 80px 0;
}

.team-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  max-width: 1080px;
  margin: 0 auto;
  align-items: start;
}

.team-text p {
  font-size: 15px;
  line-height: 2.2;
  color: var(--color-text-light);
  margin-bottom: 18px;
  text-align: justify;
}

.team-text b {
  color: var(--color-primary);
  font-weight: 600;
}

.team-projects {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 30px 32px;
}

.team-projects h3 {
  font-size: 17px;
  color: var(--color-text);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.team-projects ul {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 1;
}

.team-projects ul li {
  position: relative;
  padding: 9px 0 9px 22px;
  font-size: 14px;
  color: var(--color-text-light);
  border-bottom: 1px dashed #ece7de;
}

.team-projects ul li:last-child {
  border-bottom: none;
}

.team-projects ul li::before {
  content: '›';
  position: absolute;
  left: 4px;
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== 荣誉与合作 ===== */
.honor-block {
  padding: 80px 0;
}

.honor-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
}

.honor-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 34px 28px;
  transition: all 0.3s ease;
}

.honor-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(90, 67, 33, 0.1);
}

.honor-card .honor-year {
  font-size: 40px;
  font-weight: 600;
  color: var(--color-primary);
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: 16px;
}

.honor-card h3 {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.7;
}

.honor-card p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--color-text-light);
}

.honor-major {
  background: linear-gradient(135deg, #5a4321 0%, #3a2c15 100%);
  border-color: #5a4321;
}

.honor-major .honor-year {
  color: var(--color-primary-light);
}

.honor-major h3 {
  color: #fff;
}

.honor-major p {
  color: rgba(255, 255, 255, 0.78);
}

/* ===== 联系与参观 ===== */
.visit-block {
  background: var(--color-bg-soft);
  padding: 80px 0 64px;
}

.visit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
}

.visit-card {
  background: #fff;
  border: 1px solid var(--color-border);
  text-align: center;
  padding: 34px 24px;
}

.visit-card h4 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.visit-card p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 8px;
}

.visit-card p a {
  color: var(--color-text);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 1px;
  text-decoration: none;
  color: var(--color-primary);
}

.visit-card span {
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
  display: block;
}

.visit-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 32px;
  letter-spacing: 1px;
}

/* ===== FAQ 常见问题页 ===== */
.faq-page {
  padding: 48px 0 80px;
}

.faq-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}

.faq-nav a {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  background: #fff;
  font-size: 13.5px;
  color: var(--color-text-light);
  letter-spacing: 1px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.faq-nav a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.faq-list {
  max-width: 920px;
  margin: 0 auto;
}

.faq-group {
  margin-bottom: 48px;
}

.faq-group-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
}

.faq-group-title .g-no {
  font-size: 15px;
  color: #fff;
  background: var(--color-primary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, serif;
}

.faq-item {
  border: 1px solid var(--color-border);
  background: #fff;
  margin-bottom: 12px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item[open] {
  border-color: #d9c9ae;
  box-shadow: 0 6px 20px rgba(90, 67, 33, 0.08);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 56px 18px 22px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.8;
  color: var(--color-text);
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item .faq-a {
  padding: 2px 22px 20px;
  border-top: 1px solid #f0ebe2;
  font-size: 14px;
  line-height: 2.05;
  color: var(--color-text-light);
}

.faq-item .faq-a p {
  margin-top: 12px;
}

.faq-item .faq-a a {
  color: var(--color-primary);
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .sub-banner {
    height: clamp(300px, 62vw, 520px);
    max-height: none;
  }

  .sub-banner .bg {
    background-position: 18% center;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .biz-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .base-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .factory-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .honor-grid {
    grid-template-columns: 1fr;
  }

  .visit-grid {
    grid-template-columns: 1fr;
  }

  .sub-banner h1 {
    font-size: 28px;
  }
}

@media (max-width: 600px) {
  .sub-banner {
    height: clamp(280px, 72vw, 360px);
  }

  .sub-banner .bg {
    background-position: 12% center;
  }

  .sub-banner h1 {
    font-size: 24px;
    letter-spacing: 4px;
  }

  .sub-banner .en {
    font-size: 12px;
    letter-spacing: 4px;
  }

  .about-page .page-title {
    font-size: 26px;
  }

  .about-content {
    font-size: 14.5px;
  }

  .stats-row,
  .biz-grid {
    grid-template-columns: 1fr;
  }

  .factory-gallery {
    grid-template-columns: 1fr;
  }

  .factory-gallery img {
    height: 220px;
  }
}