/* ==========================================================================
   上海英登 MRO 商城 - 公司介绍页面专属样式 (about.css)
   ========================================================================== */

.about-page-wrap {
  padding: 20px 0 60px;
  background-color: #f8fafc;
  min-height: calc(100vh - 420px);
}

.about-breadcrumb-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.about-breadcrumb-bar a {
  color: var(--text-secondary);
  text-decoration: none;
}
.about-breadcrumb-bar a:hover {
  color: var(--primary-color);
}
.about-breadcrumb-bar .sep {
  color: #cbd5e1;
}
.about-breadcrumb-bar .current {
  color: var(--primary-color);
  font-weight: 600;
}

/* 双栏主体布局 (对齐英登规范: 左侧200px，右侧自适应) */
.about-layout-grid {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

/* 左侧导航树 (英登风格) */
.about-sidebar-nav {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.about-nav-group {
  padding: 6px 0;
}

.about-group-title {
  padding: 12px 18px 8px;
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
  border-bottom: 1px solid #f1f5f9;
  margin-bottom: 4px;
}

.about-nav-list {
  list-style: none;
  padding: 4px 8px;
  margin: 0;
}

.about-nav-item {
  margin-bottom: 2px;
}

.about-nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 14px;
  color: #334155;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.2s ease;
}

.about-nav-item.active .about-nav-link {
  background: #047553;
  color: #ffffff;
  font-weight: 700;
}

.about-nav-link:hover {
  background-color: #f1f5f9;
  color: #047553;
}
.about-nav-item.active .about-nav-link:hover {
  background: #047553;
  color: #ffffff;
}

/* 右侧内容主卡片 */
.about-content-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
  padding: 32px 38px;
  min-height: 560px;
}

.about-section-tab-title {
  font-size: 16px;
  font-weight: 700;
  color: #334155;
  border-bottom: 2px solid #047553;
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 20px;
}

/* 顶部企业形象 Banner 图 (支持插图) */
.about-hero-banner {
  width: 100%;
  height: 220px;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  margin-bottom: 24px;
  background: #0f172a;
}
.about-hero-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: transform 0.4s ease;
}
.about-hero-banner:hover img {
  transform: scale(1.02);
}
.about-hero-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 20px;
  background: linear-gradient(to top, rgba(3, 43, 31, 0.88), transparent);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.about-hero-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.about-hero-tag {
  font-size: 12px;
  background: #047553;
  padding: 3px 10px;
  border-radius: 2px;
  color: #ffffff;
}

.about-main-title {
  font-size: 24px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.35;
  margin-bottom: 18px;
}

.about-lead-hero {
  font-size: 14.5px;
  line-height: 1.85;
  color: #334155;
  margin-bottom: 16px;
  text-align: justify;
}
.about-lead-hero strong {
  color: #047553;
  font-weight: 700;
}

/* 实景照片卡片网格 (支持插图图文混排) */
.about-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 26px 0;
}
.about-photo-card {
  border: 1px solid #eef2f6;
  border-radius: 4px;
  overflow: hidden;
  background: #ffffff;
  transition: all 0.25s ease;
}
.about-photo-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  border-color: #c6ebd9;
}
.about-photo-thumb {
  width: 100%;
  height: 135px;
  overflow: hidden;
  background: #f1f5f9;
}
.about-photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.about-photo-card:hover .about-photo-thumb img {
  transform: scale(1.05);
}
.about-photo-info {
  padding: 12px 14px;
}
.about-photo-title {
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}
.about-photo-desc {
  font-size: 12px;
  color: #64748b;
  line-height: 1.55;
  margin: 0;
}

/* 核心服务体系卡片 */
.about-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 22px 0 28px;
}
.about-feature-box {
  background: #fbfcfd;
  border: 1px solid #eef2f6;
  border-radius: 4px;
  padding: 16px 18px;
  display: flex;
  gap: 14px;
  transition: all 0.25s ease;
}
.about-feature-box:hover {
  border-color: #c6ebd9;
  background: #ffffff;
  box-shadow: 0 4px 14px rgba(4, 117, 83, 0.08);
}
.feature-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #edf8f4;
  color: #047553;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.feature-info h4 {
  font-size: 14.5px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}
.feature-info p {
  font-size: 12.5px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* 合作客户与品牌行 */
.brand-partner-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.partner-logo-item {
  background: #f8fafc;
  border: 1px solid #eef2f6;
  border-radius: 4px;
  padding: 9px 6px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: #334155;
  transition: all 0.2s ease;
}
.partner-logo-item:hover {
  border-color: #c6ebd9;
  color: #047553;
  background: #ffffff;
}

/* 原型说明提示框 */
.about-prototype-notice {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: 4px;
  padding: 14px 18px;
  margin-top: 30px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12.5px;
  color: #64748b;
  line-height: 1.65;
}
.about-prototype-notice i {
  font-size: 18px;
  color: #047553;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ==========================================================================
   多 Tab 切换面板与排版美化体系
   ========================================================================== */
.about-tab-panel {
  display: none;
  animation: fadeInPanel 0.25s ease forwards;
}
.about-tab-panel.active {
  display: block;
}
@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 左侧栏专属联系卡片 */
.about-sidebar-contact-card {
  margin: 12px 10px 14px;
  padding: 14px 12px;
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border: 1px solid #bbf7d0;
  border-radius: 4px;
  text-align: center;
}
.contact-card-title {
  font-size: 13px;
  font-weight: 700;
  color: #047553;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-bottom: 6px;
}
.contact-card-person {
  font-size: 12px;
  color: #334155;
  margin-bottom: 4px;
}
.contact-card-tel {
  display: block;
  font-size: 16px;
  font-weight: 800;
  color: #047553;
  letter-spacing: 0.5px;
  text-decoration: none;
  margin-bottom: 4px;
}
.contact-card-tel:hover {
  text-decoration: underline;
}
.contact-card-tip {
  font-size: 11px;
  color: #64748b;
}

/* 标题徽章与次级标题 */
.about-sub-title {
  font-size: 17px;
  font-weight: 800;
  color: #1e293b;
  margin: 28px 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid #f1f5f9;
}
.about-sub-title i {
  color: #047553;
  font-size: 20px;
}
.badge-highlight-pill {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
  background: #f0fdf4;
  color: #047553;
  border: 1px solid #bbf7d0;
  margin-left: 8px;
}

/* 五大服务承诺卡片网格 */
.promise-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 18px 0 26px;
}
.promise-cards-grid .promise-card-wide {
  grid-column: span 2;
}
.promise-card-item {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}
.promise-card-item:hover {
  border-color: #86efac;
  box-shadow: 0 4px 14px rgba(4, 117, 83, 0.06);
  transform: translateY(-2px);
}
.promise-card-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #047553;
}
.promise-card-icon {
  width: 38px;
  height: 38px;
  border-radius: 6px;
  background: #f0fdf4;
  color: #047553;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.promise-card-body h4 {
  font-size: 14.5px;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 4px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.promise-card-body p {
  font-size: 13px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* 核心业务双核驱动卡片 */
.dual-core-business-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 18px 0 24px;
}
.dual-business-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 20px 22px;
  transition: all 0.2s ease;
}
.dual-business-card:hover {
  border-color: #047553;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.05);
}
.dual-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  background: #047553;
  color: #ffffff;
  margin-bottom: 8px;
}
.dual-business-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: #1e293b;
  margin: 0 0 10px 0;
}
.dual-business-card p {
  font-size: 13.5px;
  color: #475569;
  line-height: 1.7;
  margin: 0;
}

/* 专属对接人横幅 */
.manager-contact-banner {
  background: linear-gradient(135deg, #047553 0%, #035c42 100%);
  border-radius: 6px;
  padding: 20px 24px;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}
.manager-banner-left h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 6px 0;
}
.manager-banner-left p {
  font-size: 13px;
  opacity: 0.9;
  margin: 0;
}
.manager-banner-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-banner-tel {
  background: #ffffff;
  color: #047553;
  font-size: 15px;
  font-weight: 800;
  padding: 8px 18px;
  border-radius: 4px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.btn-banner-tel:hover {
  background: #f0fdf4;
  color: #02412e;
}

/* ==========================================================================
   售后政策专属样式 (After-Sales Table & Warning Cards)
   ========================================================================== */
.aftersales-summary-strip {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #047553;
  border-radius: 4px;
  padding: 14px 18px;
  margin-bottom: 22px;
  font-size: 13.5px;
  line-height: 1.75;
  color: #334155;
}
.aftersales-summary-strip strong {
  color: #047553;
}

/* 4大注意事项网格 */
.aftersales-notice-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 16px 0 26px;
}
.notice-card-box {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 14px 12px;
  text-align: center;
  transition: all 0.2s ease;
}
.notice-card-box:hover {
  border-color: #94a3b8;
  transform: translateY(-2px);
}
.notice-box-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  background: #f1f5f9;
  color: #047553;
  font-size: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.notice-box-title {
  font-size: 13px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}
.notice-box-desc {
  font-size: 11.5px;
  color: #64748b;
  line-height: 1.5;
}

/* 售后申请对比表格 */
.aftersales-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  margin: 16px 0 26px;
  background: #ffffff;
}
.aftersales-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}
.aftersales-table th {
  background: #f8fafc;
  color: #1e293b;
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 2px solid #e2e8f0;
  white-space: nowrap;
}
.aftersales-table td {
  padding: 13px 14px;
  border-bottom: 1px solid #f1f5f9;
  color: #334155;
  line-height: 1.6;
}
.aftersales-table tr:hover td {
  background: #f8fafc;
}
.tag-badge-yes {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  background: #ecfdf5;
  color: #047553;
  border: 1px solid #a7f3d0;
}
.tag-badge-free {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

/* 不支持退换货清单卡片 */
.prohibited-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 16px 0 26px;
}
.prohibited-card {
  background: #fffafa;
  border: 1px solid #fed7d7;
  border-radius: 4px;
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.prohibited-icon {
  color: #e53e3e;
  font-size: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}
.prohibited-content h4 {
  font-size: 13.5px;
  font-weight: 700;
  color: #9b2c2c;
  margin: 0 0 3px 0;
}
.prohibited-content p {
  font-size: 12px;
  color: #742a2a;
  line-height: 1.5;
  margin: 0;
}

/* 退款与退票标准卡片 */
.sub-policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 16px 0 24px;
}
.sub-policy-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 16px;
  transition: all 0.2s ease;
}
.sub-policy-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}
.sub-policy-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid #f1f5f9;
}
.sub-policy-header i {
  color: #047553;
  font-size: 18px;
}
.sub-policy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sub-policy-list li {
  font-size: 12.5px;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 6px;
  position: relative;
  padding-left: 12px;
}
.sub-policy-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #047553;
  font-weight: bold;
}

/* ==========================================================================
   服务协议专属样式 (Service Agreement Typography & Clauses)
   ========================================================================== */
.agreement-preamble-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 18px 22px;
  margin-bottom: 22px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #334155;
}
.agreement-preamble-card p {
  margin: 0 0 10px 0;
}
.agreement-preamble-card p:last-child {
  margin-bottom: 0;
}

/* 协议快速跳转胶囊锚点条 */
.agreement-nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 14px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  margin-bottom: 24px;
  position: sticky;
  top: 10px;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.agreement-pill-link {
  font-size: 12px;
  font-weight: 600;
  color: #475569;
  background: #f1f5f9;
  padding: 4px 10px;
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.15s ease;
}
.agreement-pill-link:hover {
  background: #047553;
  color: #ffffff;
}

/* 条款卡片 */
.agreement-clause-block {
  margin-bottom: 24px;
  padding: 20px 22px;
  border: 1px solid #eef2f6;
  border-radius: 6px;
  background: #ffffff;
  transition: all 0.2s ease;
}
.agreement-clause-block:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}
.clause-main-heading {
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 12px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 3px solid #047553;
  padding-left: 10px;
}
.clause-body-text {
  font-size: 13.5px;
  line-height: 1.85;
  color: #334155;
  margin: 0 0 10px 0;
  text-align: justify;
}
.clause-body-text:last-child {
  margin-bottom: 0;
}

/* 法律重点高亮提示框 */
.legal-alert-box {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 4px;
  padding: 12px 16px;
  margin: 12px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: #92400e;
  line-height: 1.65;
}
.legal-alert-box i {
  font-size: 18px;
  color: #b45309;
  margin-top: 2px;
  flex-shrink: 0;
}
.legal-alert-box strong {
  color: #78350f;
}