/* ============== 品牌优势详情页 ============== */

/* Banner 必备底层（抽离自 about.css，本页不加载 about.css 需自带） */
.page-banner-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(107, 75, 53, 0.5) 0%, rgba(201, 123, 73, 0.35) 100%),
    radial-gradient(circle at 30% 40%, rgba(201, 123, 73, 0.35) 0%, transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(166, 123, 91, 0.25) 0%, transparent 55%),
    linear-gradient(180deg, #6b4b35 0%, #a67b5b 100%);
  z-index: 1;
}
/* 用真实背景图时去掉渐变只保留暗色底色 */
.ba-banner.page-banner--bg .page-banner-bg,
.page-banner--bg .page-banner-bg {
  background-color: #2b1f17;
  background-size: cover;
  background-position: center 35%;
  background-repeat: no-repeat;
}
.page-banner-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(232, 227, 210, 0.04) 0, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(232, 227, 210, 0.04) 0, transparent 1px);
  background-size: 60px 60px, 80px 80px;
  pointer-events: none;
}
.page-banner-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
}
.page-banner-content {
  position: relative;
  z-index: 3;
}

/* Banner：暖棕渐变背景 + 居中标题，避免「品牌优势」贴 logo */
.ba-banner {
  position: relative;
  /* v70e：与集团介绍页 banner 尺寸统一（60vh / 最小 480px，flex 垂直居中） */
  height: 60vh;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background:
    linear-gradient(135deg, rgba(107, 75, 53, 0.55) 0%, rgba(201, 123, 73, 0.40) 100%),
    radial-gradient(circle at 30% 40%, rgba(201, 123, 73, 0.35) 0%, transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(166, 123, 91, 0.28) 0%, transparent 55%),
    linear-gradient(180deg, #6b4b35 0%, #a67b5b 100%);
  text-align: center;
  color: var(--white);
  overflow: hidden;
}
.ba-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(232, 227, 210, 0.05) 0, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(232, 227, 210, 0.05) 0, transparent 1px);
  background-size: 60px 60px, 80px 80px;
  pointer-events: none;
}
.ba-banner .page-banner-tag {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--accent-light);
  margin-bottom: 18px;
  text-transform: uppercase;
}
.ba-banner .page-banner-title {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 500;
  letter-spacing: 10px;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.15;
}
.ba-banner .page-banner-desc {
  font-size: 16px;
  letter-spacing: 6px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 300;
  margin-bottom: 28px;
}
.ba-banner .page-banner-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 280px;
  margin: 0 auto;
}
.ba-banner .page-banner-divider span {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-light), transparent);
}
.ba-banner .page-banner-divider .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-light);
}

/* ============== 顶部 Tab 导航 ============== */
.ba-tab-nav {
  position: sticky;
  /* v70e：吸顶时避开固定 header（.header.scrolled 高约 70px） */
  top: 70px;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid rgba(139, 94, 60, 0.15);
  transition: box-shadow 0.3s;
}
.ba-tab-nav.is-stuck {
  box-shadow: 0 8px 24px rgba(139, 94, 60, 0.10);
}
.ba-tab-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  padding: 14px 0;
}
.ba-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 8px;
  border-radius: 10px;
  color: var(--dark);
  text-decoration: none;
  font-family: var(--font-serif);
  transition: var(--transition);
  position: relative;
}
.ba-tab::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s;
  transform: translateX(-50%);
}
.ba-tab:hover {
  background: rgba(201, 123, 73, 0.08);
  color: var(--primary);
}
.ba-tab.active {
  background: rgba(201, 123, 73, 0.12);
  color: var(--primary);
  font-weight: 600;
}
.ba-tab.active::after {
  width: 28px;
}
.ba-tab-num {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  opacity: 0.85;
  color: var(--text-gray);
}
.ba-tab.active .ba-tab-num {
  color: var(--primary);
  opacity: 1;
}
.ba-tab-name {
  font-size: 14px;
  letter-spacing: 1px;
}

/* ============== 整体章节 ============== */
.ba-section {
  padding: 90px 0 70px;
  background: linear-gradient(180deg, #FAF7F3 0%, #F3EDE6 100%);
}
.ba-section--alt {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8F4EE 100%);
}
.ba-section--dark {
  background: linear-gradient(135deg, #2C211C 0%, #1f1612 100%);
  color: rgba(255, 255, 255, 0.85);
}
.ba-section--dark .ba-section-title { color: var(--white); }
.ba-section--dark .ba-section-en { color: var(--accent-light); }
.ba-section--dark .ba-section-head-right p { color: rgba(255, 255, 255, 0.75); }
.ba-section--dark .ba-section-head-right em { color: var(--accent-light); font-style: normal; }

/* ============== 章节头部 ============== */
.ba-section-head {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 50px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(139, 94, 60, 0.18);
  position: relative;
}
.ba-section--dark .ba-section-head {
  border-bottom-color: rgba(255, 255, 255, 0.18);
}
.ba-section-head::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 80px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.ba-section-title {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.3;
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.ba-section-en {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 4px;
  font-weight: 500;
}
.ba-section-head-right p {
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.9;
  letter-spacing: 0.5px;
}
.ba-section-head-right em {
  color: var(--primary);
  font-style: normal;
  font-weight: 500;
  border-bottom: 1px dashed var(--primary);
  padding-bottom: 1px;
}

/* ============== 网格布局 ============== */
.ba-block-grid {
  display: grid;
  gap: 24px;
  margin-bottom: 28px;
}
.ba-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ba-grid-2 { grid-template-columns: repeat(2, 1fr); }
.ba-grid-2-1 { grid-template-columns: 1fr 1fr; } /* 左右对半（原 2fr 1fr） */

/* ============== 数据大卡 ============== */
.ba-data-card {
  /* 三张数据卡底色统一为浅金渐变（原第三张 --soft 的底色） */
  background: linear-gradient(135deg, rgba(201, 169, 110, 0.06) 0%, rgba(255, 255, 255, 0.5) 100%);
  border: 1px solid rgba(201, 169, 110, 0.25);
  border-radius: 14px;
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(139, 94, 60, 0.04);
}
.ba-data-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(139, 94, 60, 0.1);
  border-color: var(--primary);
}
.ba-data-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.ba-data-icon svg {
  width: 100%;
  height: 100%;
}
.ba-data-value {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.ba-data-unit {
  font-size: 22px;
  margin-left: 4px;
  color: var(--primary);
  opacity: 0.7;
  font-weight: 500;
}
.ba-data-label {
  font-size: 14px;
  color: var(--text-gray);
  letter-spacing: 2px;
}
.ba-data-value-mini {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.ba-data-desc {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.7;
  letter-spacing: 0.3px;
  padding: 0 8px;
}

/* ============== 主功能卡 ============== */
.ba-feature-card {
  background: var(--white);
  border: 1px solid rgba(201, 169, 110, 0.22);
  border-radius: 14px;
  padding: 38px 36px;
  position: relative;
  transition: var(--transition);
}
.ba-feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 16px 36px rgba(139, 94, 60, 0.1);
}
.ba-feature-card--main {
  min-height: 100%;
  /* 与右侧 --data 卡底色一致（浅金渐变），左右成对统一 */
  background: linear-gradient(135deg, #fff7ee 0%, #FAF7F3 100%);
  border-color: rgba(201, 169, 110, 0.35);
  /* 内容块紧贴头部下方（用户要求上移到头部分隔线位置），
     卡片剩余高度全部留在底部 */
  display: flex;
  flex-direction: column;
}
.ba-feature-card--main > * { order: 2; }
.ba-feature-card--main > .ba-feature-card-head { order: 0; }
.ba-feature-card--main::after { content: ''; order: 1; flex: 0 0 0; }
.ba-feature-card--main::before { content: ''; order: 3; flex: 1 0 0; }
.ba-feature-card--data {
  background: linear-gradient(135deg, #fff7ee 0%, #FAF7F3 100%);
  border-color: rgba(201, 169, 110, 0.35);
}
.ba-feature-card--light {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
}
.ba-feature-card--light:hover {
  border-color: var(--accent-light);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3);
}
.ba-feature-card--light .ba-feature-card-head h3 { color: var(--white); }
.ba-feature-card--light .ba-feature-card-en { color: var(--accent-light); }
.ba-feature-card--light .ba-feature-card-desc { color: rgba(255, 255, 255, 0.7); }
.ba-feature-card--light .ba-innov-item { border-bottom-color: rgba(255, 255, 255, 0.12); }
.ba-feature-card--light .ba-innov-item strong { color: var(--white); }
.ba-feature-card--light .ba-innov-item span { color: rgba(255, 255, 255, 0.65); }
.ba-feature-card--light .ba-innov-num { color: var(--accent-light); border-right-color: rgba(255, 255, 255, 0.15); }

.ba-feature-card-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px dashed rgba(201, 169, 110, 0.4);
}
.ba-feature-card-head h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 1.5px;
}
.ba-feature-card-en {
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--font-serif);
}
.ba-feature-card-desc {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 2.1;
  letter-spacing: 0.3px;
  margin-bottom: 26px;
}

/* ============== 大数字 ============== */
.ba-big-num {
  font-family: var(--font-serif);
  font-size: 64px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  text-align: center;
  margin: 8px 0 4px;
  letter-spacing: 1px;
}
.ba-big-num-unit {
  font-size: 28px;
  margin-left: 4px;
  opacity: 0.7;
}
.ba-big-num-label {
  text-align: center;
  font-size: 13px;
  color: var(--text-gray);
  letter-spacing: 2px;
  margin-bottom: 24px;
}

/* ============== ✓ 子项网格 ============== */
.ba-check-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px 16px; /* 行距加大 */
  margin-top: 30px; /* 整体下移一点，与上方内容拉开间距 */
}
.ba-check-grid--2col { grid-template-columns: repeat(2, 1fr); }
.ba-check-grid--3 { grid-template-columns: 1fr; gap: 16px; } /* 行距加大 */
.ba-check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--dark);
  letter-spacing: 0.3px;
}
.ba-check-item p {
  font-size: 14px;
  color: var(--text-gray);
  margin-top: 4px;
  line-height: 1.6;
}
.ba-check-item--stack {
  align-items: flex-start;
  flex-direction: row;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(201, 169, 110, 0.05);
  border-radius: 10px;
}
.ba-check-item--stack strong {
  display: block;
  margin-bottom: 4px;
}
.ba-check-item--stack span {
  font-size: 13px;
  color: var(--text-gray);
}
.ba-check-item--row {
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  border: 1px solid rgba(201, 169, 110, 0.2);
}
.ba-check-item--row strong {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
}
.ba-check-item--row span {
  font-size: 13px;
  color: var(--text-gray);
}
.ba-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3E62D0 0%, #5F4DD6 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
/* --stack/--row 的 span 通用文字色（--text-gray）优先级高于 .ba-check，会盖掉白勾，需更高优先级还原白色 */
.ba-check-item--stack span.ba-check,
.ba-check-item--row span.ba-check {
  color: var(--white);
}
.ba-check-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(201, 169, 110, 0.12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ba-check-icon svg {
  width: 18px;
  height: 18px;
}

/* ============== 子功能卡 ============== */
.ba-mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 4px;
}
.ba-mini-grid--tight {
  gap: 12px;
}
.ba-mini-card {
  background: var(--white);
  border: 1px solid rgba(201, 169, 110, 0.2);
  border-radius: 10px;
  padding: 20px 18px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.ba-mini-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.ba-mini-card--dark {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}
.ba-mini-card--dark .ba-mini-name { color: var(--accent-light); }
.ba-mini-card--dark p { color: rgba(255, 255, 255, 0.7); }
.ba-mini-card--dark .ba-mini-foot { color: var(--accent-light); border-color: rgba(201, 169, 110, 0.4); }

/* 实战背书「双轨盈利模式」两张小卡底色改为透明——透出父卡米金渐变，
   与整个大卡背景融为一体（仅保留浅金描边） */
#ba-1 .ba-mini-card { padding: 26px 24px; background: transparent; }
#ba-1 .ba-mini-icon { width: 46px; height: 46px; margin-bottom: 16px; }
#ba-1 .ba-mini-icon svg { width: 23px; height: 23px; }
#ba-1 .ba-mini-name {
  /* 去掉 的强调短线，仅保留放大突出 */
  font-size: 27px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  margin-bottom: 12px;
}
#ba-1 .ba-mini-card p { font-size: 15.5px; line-height: 1.8; margin-bottom: 16px; }
#ba-1 .ba-mini-tags span { font-size: 14.5px; padding: 6px 16px; }

.ba-mini-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(62, 98, 208, 0.12), rgba(95, 77, 214, 0.12));
  color: #4d5fc4;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.ba-mini-icon svg {
  width: 18px;
  height: 18px;
}
.ba-mini-icon--gold {
  background: rgba(201, 169, 110, 0.15);
  color: var(--primary);
}
.ba-mini-name {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.ba-mini-card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 14px;
}
.ba-mini-tags {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.ba-mini-tags span {
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 14px;
  background: rgba(201, 169, 110, 0.1);
  color: var(--primary);
  letter-spacing: 1px;
}
.ba-mini-foot {
  margin-top: auto;                    /* v83d：钉在卡片底部，两卡水平对齐 */
  display: flex;
  align-items: center;
  min-height: 84px;                    /* v83d：与两行文案的框等高，顶部对齐 */
  box-sizing: border-box;
  padding: 8px 12px;
  border: 1px solid rgba(201, 169, 110, 0.45);   /* v83d：外部加框 */
  border-radius: 8px;
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 1px;
  font-weight: 500;
}

/* ============== 子分割 ============== */
.ba-sub-split {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}
.ba-sub-split > div {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.7;
  padding: 8px 12px;
  background: rgba(201, 169, 110, 0.06);
  border-radius: 8px;
}
.ba-sub-split strong {
  color: var(--primary);
  font-weight: 600;
  margin-right: 4px;
}

/* ============== 统计行 ============== */
.ba-stat-row {
  display: flex;
  align-items: stretch;
  gap: 12px;
  padding: 16px 0 22px;
  margin-bottom: 22px;
  border-bottom: 1px dashed rgba(201, 169, 110, 0.4);
}
.ba-stat-row--3 {
  padding: 4px 0 18px;
}
.ba-stat-block {
  flex: 1;
  text-align: center;
}
.ba-stat-block--mini {
  padding: 0 4px;
}
.ba-stat-num {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: 0.5px;
}
.ba-stat-num--mini {
  font-size: 30px;
}
.ba-stat-num-unit {
  font-size: 16px;
  margin-left: 2px;
  opacity: 0.7;
}
.ba-stat-label {
  font-size: 13px;
  color: var(--text-gray);
  letter-spacing: 1.5px;
  margin-top: 6px;
}
.ba-stat-block p {
  font-size: 14px;
  color: var(--text-gray);
  margin-top: 6px;
  line-height: 1.5;
}
.ba-stat-divider {
  width: 1px;
  background: rgba(201, 169, 110, 0.3);
}

/* ============== 拆分标签 ============== */
.ba-split-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 4px;
}
.ba-split-tag {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.7;
  padding: 10px 14px;
  background: rgba(201, 169, 110, 0.06);
  border-radius: 8px;
}
.ba-split-tag strong {
  color: var(--dark);
  margin-right: 4px;
  font-weight: 600;
}
.ba-split-tag-icon {
  color: var(--primary);
  margin-right: 4px;
}

/* ============== 工具栏 ============== */
.ba-tool-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  margin: 8px 0 18px;
  background: rgba(201, 169, 110, 0.08);
  border-radius: 10px;
  border-left: 3px solid var(--primary);
}
.ba-tool-text strong {
  display: block;
  font-size: 15px;
  color: var(--dark);
  margin-bottom: 2px;
  letter-spacing: 1px;
}
.ba-tool-text span {
  font-size: 13px;
  color: var(--text-gray);
}
.ba-tool-num {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: 0.5px;
}
.ba-tool-num-unit {
  font-size: 18px;
  margin-left: 2px;
  opacity: 0.7;
}

/* ============== 底部 4 列小卡 ============== */
.ba-bottom-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.ba-bottom-card {
  /* 与上方大卡（--main/--data）同款米金渐变底色，四张统一浅色 */
  background: linear-gradient(135deg, #fff7ee 0%, #FAF7F3 100%);
  border: 1px solid rgba(201, 169, 110, 0.25);
  border-radius: 10px;
  padding: 18px 18px;
  text-align: center;
  transition: var(--transition);
}
.ba-bottom-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
/* --dark/--gold 深棕规则随 HTML 类移除一并删除（用户最终选定
   四张小卡统一用上方大卡同款米金渐变浅色底） */
.ba-bottom-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.ba-bottom-card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.6;
}
.ba-bottom-big {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: 0.5px;
}
.ba-bottom-big-unit {
  font-size: 14px;
  margin-left: 2px;
  opacity: 0.8;
}
.ba-bottom-label {
  font-size: 13px;
  color: var(--text-gray);
  letter-spacing: 1.5px;
  margin-top: 6px;
}

/* ============== 总结条 ============== */
.ba-summary-bar {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 22px 28px;
  background: rgba(201, 169, 110, 0.08);
  border-left: 3px solid var(--primary);
  border-radius: 0 10px 10px 0;
  margin-top: 14px;
}
.ba-summary-bar--dark {
  background: rgba(255, 255, 255, 0.06);
  border-left-color: var(--accent-light);
  color: rgba(255, 255, 255, 0.85);
}
.ba-summary-bar--dark p { color: rgba(255, 255, 255, 0.85); }
.ba-summary-bar--dark em { color: var(--accent-light); }

.ba-summary-tag {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 1.5px;
  flex-shrink: 0;
  padding-right: 20px;
  border-right: 1px solid rgba(201, 169, 110, 0.3);
}
.ba-summary-bar p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.8;
  letter-spacing: 0.3px;
}
.ba-summary-bar em {
  color: var(--primary);
  font-style: normal;
  font-weight: 600;
}

/* ============== 创新列表 ============== */
.ba-innov-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.ba-innov-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(201, 169, 110, 0.25);
}
.ba-innov-item:last-child { border-bottom: none; padding-bottom: 0; }
.ba-innov-item:first-child { padding-top: 0; }
.ba-innov-num {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 1px;
  flex-shrink: 0;
  padding-right: 16px;
  border-right: 1px solid rgba(201, 169, 110, 0.25);
  min-width: 40px;
  text-align: center;
}
.ba-innov-item strong {
  display: block;
  font-size: 15px;
  color: var(--dark);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.ba-innov-item span {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.6;
}

/* ============== 服务创新：核心服务体系 + 双场景落地 ============== */
.ba-subsection { margin-bottom: 56px; }
.ba-subsection:last-of-type { margin-bottom: 40px; }
.ba-subsection-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}
.ba-subsection-sub {
  font-size: 14px;
  color: var(--text-gray);
  letter-spacing: 0.5px;
  margin-bottom: 28px;
  line-height: 1.7;
}

.ba-service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.ba-service-card {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 28px 30px;
  background: var(--white);
  border: 1px solid rgba(201, 169, 110, 0.22);
  border-radius: 14px;
  transition: var(--transition);
}
.ba-service-card:hover {
  border-color: var(--primary);
  box-shadow: 0 14px 32px rgba(139, 94, 60, 0.1);
  transform: translateY(-3px);
}
.ba-service-icon {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  opacity: 0.85;
}
.ba-service-icon svg {
  width: 100%;
  height: 100%;
}
.ba-service-text h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.ba-service-text p {
  font-size: 13.5px;
  color: var(--text-gray);
  line-height: 1.6;
  letter-spacing: 0.3px;
}

.ba-scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.ba-scenario-card {
  padding: 32px 34px;
  background: var(--white);
  border: 1px solid rgba(201, 169, 110, 0.22);
  border-radius: 14px;
  transition: var(--transition);
}
.ba-scenario-card:hover {
  border-color: var(--primary);
  box-shadow: 0 14px 32px rgba(139, 94, 60, 0.1);
  transform: translateY(-3px);
}
.ba-scenario-star {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1;
}
.ba-scenario-card h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.ba-scenario-card p {
  font-size: 13.5px;
  color: var(--text-gray);
  line-height: 1.85;
  margin-bottom: 22px;
  letter-spacing: 0.3px;
}
.ba-scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.ba-scenario-tags span {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 16px;
  background: rgba(201, 169, 110, 0.1);
  color: var(--primary);
  letter-spacing: 0.5px;
}

/* ============== 响应式 ============== */
@media (max-width: 1200px) {
  .ba-section { padding: 80px 0 60px; }
  .ba-section-head { grid-template-columns: 1fr; gap: 16px; align-items: start; }
  .ba-grid-3, .ba-grid-2 { grid-template-columns: 1fr 1fr; }
  .ba-grid-2-1 { grid-template-columns: 1fr; }
  .ba-service-grid, .ba-scenario-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
  .ba-tab-list {
    grid-template-columns: repeat(3, 1fr);
    padding: 10px 0;
  }
  .ba-tab { padding: 10px 6px; }
  .ba-tab-name { font-size: 13px; }
  .ba-section-title { font-size: 30px; }
  .ba-grid-3, .ba-grid-2 { grid-template-columns: 1fr; }
  .ba-bottom-row { grid-template-columns: 1fr 1fr; }
  .ba-data-value { font-size: 48px; }
  .ba-big-num { font-size: 54px; }
  .ba-check-grid { grid-template-columns: 1fr 1fr; }
  .ba-stat-row { flex-wrap: wrap; }
  .ba-stat-block { flex: 1 1 40%; }
  .ba-service-grid, .ba-scenario-grid { grid-template-columns: 1fr; }
  .ba-subsection-title { font-size: 24px; }
}

@media (max-width: 640px) {
  .ba-banner {
    height: 50vh;
    min-height: 380px;
  }
  .ba-tab-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }
  .ba-tab-num { display: none; }
  .ba-section { padding: 60px 0 40px; }
  .ba-section-title { font-size: 26px; }
  .ba-section-en { font-size: 13px; }
  .ba-feature-card { padding: 28px 22px; }
  .ba-mini-grid { grid-template-columns: 1fr; }
  .ba-split-tags { grid-template-columns: 1fr; }
  .ba-check-grid, .ba-check-grid--2col { grid-template-columns: 1fr; }
  .ba-bottom-row { grid-template-columns: 1fr; }
  .ba-summary-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .ba-summary-tag { padding-right: 0; border-right: none; padding-bottom: 8px; border-bottom: 1px solid rgba(201, 169, 110, 0.3); }
  .ba-data-value { font-size: 40px; }
  .ba-big-num { font-size: 46px; }
  .ba-stat-num { font-size: 28px; }
  .ba-tool-num { font-size: 30px; }
  .ba-tool-line { flex-direction: column; align-items: flex-start; }
  .ba-service-card { padding: 22px 20px; gap: 16px; }
  .ba-service-icon { width: 44px; height: 44px; }
  .ba-service-text h4 { font-size: 16px; }
  .ba-scenario-card { padding: 24px 22px; }
  .ba-scenario-card h4 { font-size: 18px; }
  .ba-subsection { margin-bottom: 44px; }
  .ba-subsection-title { font-size: 22px; }
}

/* 02~06 章节右侧描述居右对齐（01 未要求，保持原样） */
#ba-2 .ba-section-head-right, #ba-3 .ba-section-head-right, #ba-4 .ba-section-head-right,
#ba-5 .ba-section-head-right, #ba-6 .ba-section-head-right { text-align: right; }