/* 爱鹿 AILU 品牌官网 - 内页通用样式 */

/* ===== 内页顶部Banner ===== */
.page-banner {
  position: relative;
  height: 360px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  margin-top: 84px;
}
.page-banner__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,29,22,0.55) 0%, rgba(26,29,22,0.3) 100%);
}
.page-banner__content {
  position: relative;
  z-index: 2;
}
.page-banner__title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 500;
  margin-bottom: 12px;
}
.page-banner__subtitle {
  font-size: 16px;
  opacity: 0.85;
  letter-spacing: 0.05em;
}

/* ===== 内页主体内容区 ===== */
.page-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 40px;
}

/* ===== 产品列表页 ===== */
.products-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.products-filter__btn {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ailu-gray-600);
  background: var(--ailu-white);
  border: 1px solid var(--ailu-gray-200);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.products-filter__btn:hover,
.products-filter__btn.active {
  background: var(--ailu-green);
  color: #fff;
  border-color: var(--ailu-green);
}
.products-grid-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

/* ===== 产品详情页 ===== */
.prod-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.prod-detail__image-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ailu-gray-50);
  aspect-ratio: 1/1;
}
.prod-detail__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.prod-detail__category {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--ailu-green);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.prod-detail__name {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 16px;
}
.prod-detail__desc {
  font-size: 16px;
  color: var(--ailu-gray-600);
  line-height: 1.9;
  margin-bottom: 32px;
}
.prod-detail__section {
  margin-bottom: 28px;
}
.prod-detail__section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ailu-black);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.prod-detail__section-title::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--ailu-green);
  border-radius: 2px;
}
.prod-detail__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.prod-detail__spec {
  font-size: 14px;
  color: var(--ailu-gray-600);
  padding: 6px 0;
}
.prod-detail__features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.prod-detail__feature {
  padding: 6px 16px;
  background: var(--ailu-primary-light);
  color: var(--ailu-green);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
}

/* 相关产品 */
.related-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  text-align: center;
  margin-bottom: 40px;
  color: var(--ailu-black);
}

/* ===== 新闻列表页 ===== */
.news-list {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}

/* ===== 新闻详情页 ===== */
.news-detail {
  max-width: 800px;
  margin: 0 auto;
}
.news-detail__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--ailu-gray-400);
  flex-wrap: wrap;
}
.news-detail__date {
  color: var(--ailu-green);
  font-weight: 500;
}
.news-detail__cat {
  padding: 4px 12px;
  background: var(--ailu-primary-light);
  border-radius: 100px;
  color: var(--ailu-green);
  font-size: 12px;
}
.news-detail__image {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: 40px;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.news-detail__body {
  font-size: 16px;
  line-height: 2;
  color: var(--ailu-gray-800);
}
.news-detail__body p {
  margin-bottom: 20px;
}

/* 相关新闻 */
.related-news {
  background: var(--ailu-gray-50);
  padding: 80px 40px;
}
.related-news__inner {
  max-width: var(--container-width);
  margin: 0 auto;
}

/* ===== 关于爱鹿页面 ===== */
.about-section {
  padding-bottom: 80px;
}
.about-section__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 40px;
}
.about-section__title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  color: var(--ailu-black);
  text-align: center;
  margin-bottom: 12px;
}
.about-section__sub {
  font-size: 15px;
  color: var(--ailu-gray-400);
  text-align: center;
  margin-bottom: 56px;
}

/* 品牌理念 */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.philosophy-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--ailu-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--ailu-gray-100);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.philosophy-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}
.philosophy-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--ailu-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ailu-green);
  font-size: 28px;
}
.philosophy-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 10px;
}
.philosophy-card__desc {
  font-size: 14px;
  color: var(--ailu-gray-600);
  line-height: 1.7;
}

/* 故事内容 */
.story-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.story-content__image {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4/5;
  object-fit: cover;
}
.story-content__text {
  font-size: 16px;
  color: var(--ailu-gray-600);
  line-height: 2;
  white-space: pre-line;
}

/* 发展历程 */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--ailu-gray-200);
  transform: translateX(-50%);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 40px;
}
.timeline-item:nth-child(even) { direction: rtl; }
.timeline-item:nth-child(even) > * { direction: ltr; }
.timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--ailu-green);
  border-radius: 50%;
  border: 3px solid var(--ailu-primary-light);
  margin: 4px auto 0;
  position: relative;
  z-index: 1;
}
.timeline-year {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ailu-green);
  margin-bottom: 4px;
}
.timeline-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ailu-black);
  margin-bottom: 6px;
}
.timeline-desc {
  font-size: 13px;
  color: var(--ailu-gray-600);
  line-height: 1.6;
}
.timeline-content {
  padding: 16px 20px;
  background: var(--ailu-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--ailu-gray-100);
}

/* 资质认证 */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cert-card {
  padding: 32px;
  background: var(--ailu-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--ailu-gray-100);
  text-align: center;
  transition: transform var(--transition-fast);
}
.cert-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}
.cert-card__mark {
  font-size: 36px;
  margin-bottom: 12px;
}
.cert-card__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 8px;
}
.cert-card__desc {
  font-size: 13px;
  color: var(--ailu-gray-400);
  line-height: 1.6;
}

/* ===== 联系我们页面 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.contact-info__title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 16px;
}
.contact-info__desc {
  font-size: 15px;
  color: var(--ailu-gray-600);
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-info__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-info__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-info__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--ailu-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ailu-green);
  font-size: 20px;
}
.contact-info__label {
  font-size: 12px;
  color: var(--ailu-gray-400);
  margin-bottom: 2px;
}
.contact-info__value {
  font-size: 15px;
  color: var(--ailu-gray-800);
  font-weight: 500;
}

/* 联系表单 */
.contact-form {
  background: var(--ailu-white);
  border-radius: var(--radius-md);
  padding: 40px;
  border: 1px solid var(--ailu-gray-100);
}
.contact-form__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 28px;
}
.contact-form__group {
  margin-bottom: 20px;
}
.contact-form__label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ailu-gray-800);
  margin-bottom: 8px;
}
.contact-form__input,
.contact-form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--ailu-gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ailu-gray-800);
  background: var(--ailu-cream);
  transition: border-color var(--transition-fast);
  outline: none;
  font-family: inherit;
}
.contact-form__input:focus,
.contact-form__textarea:focus {
  border-color: var(--ailu-green);
}
.contact-form__textarea {
  min-height: 140px;
  resize: vertical;
}

/* ===== 移动端内页样式 ===== */
@media (max-width: 768px) {
  .page-banner {
    height: 220px;
    margin-top: 56px;
  }
  .page-banner__title { font-size: 26px; }
  .page-banner__subtitle { font-size: 13px; }
  .page-content { padding: 40px 20px; }

  /* 产品列表 - 单列紧凑 */
  .products-filter { gap: 8px; margin-bottom: 24px; }
  .products-filter__btn { padding: 8px 16px; font-size: 12px; }
  .products-grid-inner { grid-template-columns: 1fr; gap: 16px; }
  .products-grid-inner .pc-product-card { display: flex; flex-direction: row; gap: 16px; align-items: center; }
  .products-grid-inner .pc-product-card__image-wrap { flex: 0 0 120px; aspect-ratio: 1 / 1; }
  .products-grid-inner .pc-product-card__body { flex: 1; padding: 0; }
  .products-grid-inner .pc-product-card__name { font-size: 15px; margin-bottom: 4px; }
  .products-grid-inner .pc-product-card__desc { font-size: 12px; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .products-grid-inner .pc-product-card__link { font-size: 12px; }

  /* 产品详情 - 单列 */
  .prod-detail { grid-template-columns: 1fr; gap: 32px; }
  .prod-detail__name { font-size: 24px; }
  .prod-detail__specs { grid-template-columns: 1fr; }

  /* 新闻列表 - 单列 */
  .news-list { grid-template-columns: 1fr; gap: 16px; }

  /* 新闻详情 */
  .news-detail__body { font-size: 14px; }

  /* 关于页 */
  .about-section { padding: 24px 0; }
  .about-section__inner { padding: 0 16px; }
  .about-section__title { font-size: 20px; margin-bottom: 4px; }
  .about-section__sub { font-size: 12px; margin-bottom: 20px; color: var(--ailu-gray-400); }

  .story-content { display: block; }
  .story-content__image { width: 100%; aspect-ratio: 16 / 9; border-radius: 12px; margin-bottom: 16px; object-fit: cover; }
  .story-content__text { font-size: 14px; line-height: 1.7; color: var(--ailu-gray-600); white-space: pre-wrap; }

  .philosophy-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .philosophy-card { padding: 16px; background: var(--ailu-white); border-radius: 12px; border: 1px solid var(--ailu-gray-100); text-align: center; }
  .philosophy-card__icon { width: 40px; height: 40px; margin: 0 auto 10px; }
  .philosophy-card__icon svg { width: 20px; height: 20px; }
  .philosophy-card__title { font-size: 14px; margin-bottom: 4px; }
  .philosophy-card__desc { font-size: 12px; color: var(--ailu-gray-500); line-height: 1.5; }

  .certs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cert-card { padding: 16px; background: var(--ailu-white); border-radius: 12px; border: 1px solid var(--ailu-gray-100); text-align: center; }
  .cert-card__mark { font-size: 24px; margin-bottom: 8px; }
  .cert-card__name { font-size: 13px; margin-bottom: 2px; }
  .cert-card__desc { font-size: 11px; color: var(--ailu-gray-400); line-height: 1.5; }

  /* 时间线 */
  .timeline { position: relative; padding-left: 24px; }
  .timeline::before { content: ''; position: absolute; left: 6px; top: 0; bottom: 0; width: 2px; background: var(--ailu-gray-200); }
  .timeline-item { position: relative; margin-bottom: 20px; padding-left: 20px; }
  .timeline-item:last-child { margin-bottom: 0; }
  .timeline-dot { position: absolute; left: -20px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--ailu-green); border: 2px solid var(--ailu-white); box-shadow: 0 0 0 2px var(--ailu-green-100); }
  .timeline-content { text-align: left !important; padding: 0; background: none; }
  .timeline-year { font-size: 16px; font-weight: 600; color: var(--ailu-green); margin-bottom: 2px; }
  .timeline-title { font-size: 14px; font-weight: 500; color: var(--ailu-black); margin-bottom: 2px; }
  .timeline-desc { font-size: 12px; color: var(--ailu-gray-500); line-height: 1.5; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-form { padding: 24px; }

  /* 相关新闻 */
  .related-news { padding: 48px 20px; }
}

/* ===== 子栏目导航（美化版） ===== */
.page-with-subnav {
  display: grid;
  grid-template-columns: 268px 1fr;
  gap: 56px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 72px 40px;
  align-items: start;
}

.sub-nav {
  position: sticky;
  top: 104px;
  height: fit-content;
  background: var(--ailu-white);
  border: 1px solid var(--ailu-gray-100);
  border-radius: var(--radius-lg);
  padding: 22px 16px 18px;
  box-shadow: 0 12px 34px rgba(26, 29, 22, 0.05);
}

.sub-nav__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--ailu-black);
  margin-bottom: 4px;
  padding: 0 8px 14px;
  border-bottom: 1px solid var(--ailu-gray-100);
}
.sub-nav__title::before {
  content: '';
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: 50%;
  background: var(--ailu-green);
  box-shadow: 0 0 0 4px var(--ailu-primary-light);
}
.sub-nav__title small {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ailu-gray-400);
  margin-top: 3px;
}

.sub-nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 14px;
}

.sub-nav__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--ailu-gray-600);
  transition: all var(--transition-fast);
}
.sub-nav__item span {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sub-nav__idx {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border-radius: 7px;
  background: var(--ailu-gray-50);
  color: var(--ailu-gray-400);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.sub-nav__chev {
  opacity: 0;
  transform: translateX(-5px);
  transition: all var(--transition-fast);
  color: var(--ailu-green);
  font-size: 15px;
  font-style: normal;
}
.sub-nav__item:hover {
  background: var(--ailu-primary-light);
  color: var(--ailu-green);
}
.sub-nav__item:hover .sub-nav__chev {
  opacity: 1;
  transform: translateX(0);
}
.sub-nav__item:hover .sub-nav__idx {
  background: var(--ailu-white);
  color: var(--ailu-green);
}
.sub-nav__item.active {
  background: linear-gradient(135deg, var(--ailu-primary) 0%, var(--ailu-green) 100%);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 10px 22px rgba(140, 160, 90, 0.28);
}
.sub-nav__item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 62%;
  background: #fff;
  border-radius: 0 3px 3px 0;
}
.sub-nav__item.active .sub-nav__idx {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}
.sub-nav__item.active .sub-nav__chev {
  opacity: 1;
  transform: translateX(0);
  color: #fff;
}

.sub-nav__cta {
  margin-top: 18px;
  padding: 16px 14px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--ailu-cream) 0%, var(--ailu-primary-light) 100%);
  text-align: center;
}
.sub-nav__cta-t {
  font-size: 14px;
  font-weight: 600;
  color: var(--ailu-black);
  margin-bottom: 4px;
}
.sub-nav__cta-d {
  font-size: 12px;
  color: var(--ailu-gray-600);
  margin-bottom: 12px;
  line-height: 1.5;
}
.sub-nav__cta-btn {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 100px;
  background: var(--ailu-green);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
}
.sub-nav__cta-btn:hover {
  background: var(--ailu-green-dark);
}

.sub-nav__content {
  min-width: 0;
}
.sub-nav__content .about-section__title {
  margin-bottom: 8px;
}
.sub-nav__content .about-section__sub {
  margin-bottom: 32px;
}

/* ===== 富内容区块（子页共用） ===== */
.rich-intro {
  font-size: 16px;
  line-height: 1.95;
  color: var(--ailu-gray-600);
  margin-bottom: 12px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
  margin: 56px 0;
}
.split--rev .split__media {
  order: 2;
}
.split__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--ailu-gray-50);
  box-shadow: 0 16px 40px rgba(26, 29, 22, 0.08);
}
.split__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.split__body h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 16px;
}
.split__body p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ailu-gray-600);
  margin-bottom: 18px;
}

.pill-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: grid;
  gap: 12px;
}
.pill-list li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  color: var(--ailu-gray-600);
  line-height: 1.6;
}
.pill-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ailu-primary-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236f8a3a' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / 11px no-repeat;
}

.band {
  margin: 56px 0;
  padding: 48px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--ailu-cream) 0%, var(--ailu-primary-light) 100%);
  border: 1px solid var(--ailu-gray-100);
}
.band__title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--ailu-black);
  margin-bottom: 12px;
  text-align: center;
}
.band__desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ailu-gray-600);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 48px 0;
}
.stat-band__item {
  text-align: center;
  padding: 28px 16px;
  background: var(--ailu-white);
  border: 1px solid var(--ailu-gray-100);
  border-radius: var(--radius-md);
}
.stat-band__num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 600;
  color: var(--ailu-green);
}
.stat-band__num small {
  font-size: 16px;
  font-weight: 500;
}
.stat-band__label {
  font-size: 13px;
  color: var(--ailu-gray-400);
  margin-top: 6px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 48px 0;
}
.gallery a {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--ailu-gray-50);
}
.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.gallery a:hover img {
  transform: scale(1.06);
}

.steps {
  position: relative;
  margin: 48px 0;
}
.steps__item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 36px;
}
.steps__item:last-child {
  padding-bottom: 0;
}
.steps__item::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  bottom: 0;
  width: 2px;
  background: var(--ailu-gray-200);
}
.steps__item:last-child::before {
  display: none;
}
.steps__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ailu-primary) 0%, var(--ailu-green) 100%);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(140, 160, 90, 0.25);
}
.steps__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ailu-black);
  margin-bottom: 6px;
}
.steps__desc {
  font-size: 14px;
  color: var(--ailu-gray-600);
  line-height: 1.8;
}

.faq {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 8px 0;
}
.faq__item {
  border: 1px solid var(--ailu-gray-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ailu-white);
}
.faq__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ailu-black);
}
.faq__q .faq__icon {
  color: var(--ailu-green);
  font-size: 18px;
  flex: 0 0 auto;
}
.faq__a {
  padding: 0 22px 18px 52px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--ailu-gray-600);
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
}
.cta-btn--primary {
  background: var(--ailu-green);
  color: #fff;
}
.cta-btn--primary:hover {
  background: var(--ailu-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(140, 160, 90, 0.3);
}
.cta-btn--ghost {
  background: var(--ailu-white);
  color: var(--ailu-green);
  border: 1px solid var(--ailu-green);
}
.cta-btn--ghost:hover {
  background: var(--ailu-primary-light);
}

@media (max-width: 768px) {
  .page-with-subnav {
    grid-template-columns: 1fr;
    padding: 24px 20px;
    gap: 0;
  }
  .sub-nav {
    position: static;
    margin-bottom: 22px;
    padding: 16px;
    box-shadow: none;
  }
  .sub-nav__title {
    font-size: 16px;
    padding: 0 4px 12px;
  }
  .sub-nav__title small {
    display: none;
  }
  .sub-nav__cta {
    display: none;
  }
  .sub-nav__list {
    flex-direction: row;
    overflow-x: auto;
    gap: 6px;
    padding-bottom: 4px;
  }
  .sub-nav__item {
    white-space: nowrap;
    padding: 10px 14px;
    font-size: 13px;
  }
  .sub-nav__item span {
    gap: 0;
  }
  .sub-nav__idx,
  .sub-nav__chev {
    display: none;
  }
  .split {
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 32px 0;
  }
  .split--rev .split__media {
    order: 0;
  }
  .band {
    padding: 28px 20px;
  }
  .stat-band {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-band__num {
    font-size: 26px;
  }
  .gallery {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}

/* ===== 栏目通栏 Banner（图片铺满 + 文字居中压图）===== */
.col-banner {
  position: relative;
  height: 280px;
  margin-top: 84px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.col-banner__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.col-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,29,22,0.46) 0%, rgba(26,29,22,0.34) 50%, rgba(26,29,22,0.46) 100%);
}
.col-banner__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 40px;
  color: #fff;
  text-align: center;
}
.col-banner__title {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: 10px;
  text-shadow: 0 1px 14px rgba(0,0,0,0.3);
}
.col-banner__en {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.88;
  margin-bottom: 14px;
}
.col-banner__desc {
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.95;
  max-width: 760px;
  margin: 0 auto;
  text-shadow: 0 1px 10px rgba(0,0,0,0.26);
}

/* ===== 子栏目按钮条 ===== */
.section-subnav {
  background: var(--ailu-white);
  border-bottom: 1px solid var(--ailu-gray-100);
}
.section-subnav__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.section-subnav__btn {
  position: relative;
  padding: 18px 34px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ailu-gray-600);
  transition: color var(--transition-fast);
}
.section-subnav__btn::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: -1px;
  height: 2px;
  background: var(--ailu-green);
  transition: left var(--transition-fast), right var(--transition-fast);
}
.section-subnav__btn:hover { color: var(--ailu-green); }
.section-subnav__btn.is-active {
  color: var(--ailu-green);
  font-weight: 600;
}
.section-subnav__btn.is-active::after,
.section-subnav__btn:hover::after {
  left: 22px;
  right: 22px;
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .col-banner {
    height: 190px;
    margin-top: 56px;
  }
  .col-banner__inner { padding: 0 20px; }
  .col-banner__title { font-size: 24px; margin-bottom: 6px; }
  .col-banner__en { font-size: 10px; letter-spacing: 0.16em; margin-bottom: 10px; }
  .col-banner__desc { font-size: 13px; line-height: 1.7; }

  .section-subnav__inner {
    padding: 0;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .section-subnav__inner::-webkit-scrollbar { display: none; }
  .section-subnav__btn {
    flex: 0 0 auto;
    padding: 13px 17px;
    font-size: 13px;
    white-space: nowrap;
  }
  .section-subnav__btn.is-active::after,
  .section-subnav__btn:hover::after { left: 11px; right: 11px; }
}