/* qaj 首页 · 墨火蕲艾 */

/* —— Hero 轮播：纯图，无叠加文案 —— */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--ink);
}

.hero__swiper {
  width: 100%;
}

.hero__slide {
  position: relative;
  width: 100%;
  height: clamp(280px, 42vw, 560px);
  background: var(--ink);
}

.hero__slide::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(15, 12, 10, 0.18) 0%, rgba(15, 12, 10, 0.28) 55%, rgba(15, 12, 10, 0.45) 100%),
    radial-gradient(ellipse at 70% 30%, rgba(158, 43, 43, 0.12), transparent 55%);
}

.hero__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero .swiper-pagination {
  bottom: 18px !important;
}

.hero .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  background: rgba(247, 243, 234, 0.45);
  opacity: 1;
  transition: background 0.25s, width 0.25s;
}

.hero .swiper-pagination-bullet-active {
  background: var(--cinnabar, #9e2b2b);
  width: 22px;
  border-radius: 0 !important;
}

.hero .swiper-button-prev,
.hero .swiper-button-next {
  width: 44px;
  height: 44px;
  margin-top: -22px;
  background: rgba(22, 18, 15, 0.35);
  border: 1px solid rgba(166, 139, 91, 0.45);
  color: rgba(247, 243, 234, 0.85);
  transition: background 0.25s, border-color 0.25s;
}

.hero .swiper-button-prev:hover,
.hero .swiper-button-next:hover {
  background: rgba(158, 43, 43, 0.85);
  border-color: rgba(158, 43, 43, 0.85);
}

.hero .swiper-button-prev::after,
.hero .swiper-button-next::after {
  font-size: 16px;
  font-weight: 700;
}

@media (max-width: 768px) {
  .hero__slide {
    height: clamp(180px, 48vw, 280px);
  }

  .hero .swiper-button-prev,
  .hero .swiper-button-next {
    display: none;
  }
}

/* —— 品牌引言 —— */
.intro-strip {
  background: var(--ink);
  color: rgba(247, 243, 234, 0.72);
  padding: 28px 0;
  border-bottom: 1px solid rgba(166, 139, 91, 0.25);
}

.intro-strip__inner {
  width: var(--max);
  max-width: 94%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.intro-strip__item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--bronze-soft);
  letter-spacing: 0.16em;
  margin-bottom: 6px;
  font-weight: 600;
}

.intro-strip__item span {
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* —— 通用 section —— */
#main {
  padding: 0;
}

.home-section {
  padding: 72px 0;
  position: relative;
}

.home-section--alt {
  background:
    linear-gradient(180deg, rgba(58, 92, 75, 0.05), transparent 40%),
    var(--washi);
}

.home-section--ink {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(158, 43, 43, 0.12), transparent 45%),
    linear-gradient(165deg, #1a1511 0%, #0f0c0a 100%);
  color: var(--paper);
}

.home-section--ink .sec-head__title {
  color: var(--paper);
}

.home-section--ink .sec-head__sub {
  color: rgba(247, 243, 234, 0.55);
}

/* —— 企业动态 —— */
.news-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 28px;
  align-items: stretch;
}

.news-featured {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  background: var(--ink);
  border: 1px solid var(--line-gold);
}

.news-featured a {
  display: block;
  height: 100%;
  color: inherit;
}

.news-featured img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.news-featured:hover img {
  transform: scale(1.05);
}

.news-featured__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 24px 24px;
  background: linear-gradient(transparent, rgba(15, 12, 10, 0.88));
}

.news-featured__cap h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--paper);
  line-height: 1.45;
  font-weight: 600;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--line);
  background: rgba(247, 243, 234, 0.65);
}

.news-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 22px 22px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s;
}

.news-item:last-child {
  border-bottom: 0;
}

.news-item:hover {
  background: rgba(158, 43, 43, 0.04);
}

.news-item .date-box {
  text-align: center;
  border-right: 1px solid var(--line-gold);
  padding-right: 14px;
}

.news-item .day {
  display: block;
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--cinnabar);
  line-height: 1.1;
  font-weight: 600;
}

.news-item .month {
  display: block;
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  margin-top: 4px;
}

.news-item h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.news-item .desc {
  font-size: 13px;
  color: var(--ink-mute);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.7;
}

/* —— OEM —— */
.oem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.35fr;
  gap: 18px;
}

.oem-card {
  position: relative;
  padding: 36px 28px;
  min-height: 280px;
  overflow: hidden;
  border: 1px solid var(--line-gold);
}

.oem-card--jade {
  background: linear-gradient(150deg, var(--jade) 0%, #2a4438 100%);
  color: var(--paper);
}

.oem-card--cinnabar {
  background: linear-gradient(150deg, var(--cinnabar) 0%, var(--cinnabar-deep) 100%);
  color: var(--paper);
}

.oem-card--paper {
  background:
    linear-gradient(180deg, rgba(247, 243, 234, 0.92), rgba(232, 226, 212, 0.95)),
    var(--paper);
  color: var(--ink);
}

.oem-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: 24px;
  letter-spacing: 0.18em;
  font-weight: 600;
}

.oem-card p {
  font-size: 14px;
  line-height: 1.85;
  letter-spacing: 0.04em;
  opacity: 0.9;
}

.oem-card__mark {
  position: absolute;
  right: 16px;
  bottom: 8px;
  font-family: var(--font-seal);
  font-size: 64px;
  opacity: 0.12;
  line-height: 1;
}

.oem-card--paper .features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 18px 0 24px;
  font-size: 13px;
  color: var(--jade);
}

.oem-card--paper .features i {
  color: var(--cinnabar);
  margin-right: 4px;
}

.oem-card--paper .more-btn {
  display: inline-flex;
  padding: 10px 20px;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  font-family: var(--font-serif);
  letter-spacing: 0.14em;
  font-size: 13px;
}

.oem-card--paper .more-btn:hover {
  background: var(--cinnabar);
  color: var(--paper);
}

/* —— 产品陈列：裱框展柜 —— */
.home-section:has(.product-list) {
  background:
    radial-gradient(ellipse 70% 40% at 50% 0%, rgba(158, 43, 43, 0.04), transparent 60%),
    linear-gradient(180deg, rgba(232, 226, 212, 0.55), rgba(247, 243, 234, 0.9));
}

.product-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px 22px;
}

.product-item a {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 10px 10px 0;
  background:
    linear-gradient(var(--paper), var(--paper)) padding-box,
    linear-gradient(145deg, rgba(166, 139, 91, 0.55), rgba(158, 43, 43, 0.2), rgba(166, 139, 91, 0.45)) border-box;
  border: 1px solid transparent;
  box-shadow:
    inset 0 0 0 1px rgba(247, 243, 234, 0.9),
    0 1px 0 rgba(166, 139, 91, 0.12);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  color: inherit;
}

.product-item a:hover {
  transform: translateY(-6px);
  box-shadow:
    inset 0 0 0 1px rgba(247, 243, 234, 0.95),
    0 18px 36px rgba(22, 18, 15, 0.1);
  color: inherit;
}

/* 四角裱框 */
.product-frame,
.product-frame-b {
  display: none;
}

.product-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(22, 18, 15, 0.03), transparent 40%),
    var(--washi);
  border: 1px solid rgba(166, 139, 91, 0.22);
}

.product-corners {
  --corner: var(--bronze);
  position: absolute;
  inset: 6px;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(var(--corner), var(--corner)) top left / 16px 1px no-repeat,
    linear-gradient(var(--corner), var(--corner)) top left / 1px 16px no-repeat,
    linear-gradient(var(--corner), var(--corner)) top right / 16px 1px no-repeat,
    linear-gradient(var(--corner), var(--corner)) top right / 1px 16px no-repeat,
    linear-gradient(var(--corner), var(--corner)) bottom left / 16px 1px no-repeat,
    linear-gradient(var(--corner), var(--corner)) bottom left / 1px 16px no-repeat,
    linear-gradient(var(--corner), var(--corner)) bottom right / 16px 1px no-repeat,
    linear-gradient(var(--corner), var(--corner)) bottom right / 1px 16px no-repeat;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.product-item a:hover .product-corners {
  --corner: var(--cinnabar);
  opacity: 1;
}

.product-img::before,
.product-img::after {
  display: none;
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.5s ease;
  filter: saturate(0.92) contrast(1.02);
}

.product-item a:hover .product-img img {
  transform: scale(1.05);
  filter: saturate(1) contrast(1.04);
}

.product-title {
  position: relative;
  padding: 16px 8px 18px;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.product-title__line {
  display: block;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--bronze), transparent);
  font-style: normal;
}

.product-title p {
  margin: 0;
  max-width: 100%;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: normal;
}

.product-title__more {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--cinnabar);
  font-family: var(--font-serif);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s, transform 0.3s;
}

.product-item a:hover .product-title__more {
  opacity: 1;
  transform: none;
}

.product-item a:hover .product-title p {
  color: var(--cinnabar-deep);
}

/* —— 艾灸课堂 —— */
.course-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 4px;
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(247, 243, 234, 0.12);
}

.course-tabs:empty,
.course-content:empty {
  display: none;
}

.course-tabs a {
  padding: 8px 18px;
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.12em;
  color: rgba(247, 243, 234, 0.55);
  border-bottom: 2px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.course-tabs a:hover,
.course-tabs a.active {
  color: var(--bronze-soft);
  border-bottom-color: var(--cinnabar);
}

.tab-panel {
  display: none;
  grid-template-columns: 1fr 1.2fr;
  gap: 28px;
  align-items: start;
}

.tab-panel.active {
  display: grid;
}

.course-featured a {
  display: block;
  color: inherit;
}

.featured-img {
  overflow: hidden;
  border: 1px solid rgba(166, 139, 91, 0.35);
  margin-bottom: 14px;
  aspect-ratio: 16 / 10;
  background: #000;
}

.featured-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}

.course-featured:hover .featured-img img {
  transform: scale(1.04);
}

.course-featured h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 0.08em;
  color: var(--paper);
  line-height: 1.45;
}

.course-list ul {
  border-top: 1px solid rgba(247, 243, 234, 0.1);
}

.course-list li a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(247, 243, 234, 0.12);
  color: rgba(247, 243, 234, 0.72);
  font-size: 14px;
}

.course-list li a:hover {
  color: var(--bronze-soft);
}

.course-list .title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.course-list .date {
  color: rgba(247, 243, 234, 0.35);
  font-size: 12px;
  flex-shrink: 0;
}

.course-more {
  margin-top: 18px;
}

.course-more a {
  color: var(--bronze-soft);
  font-family: var(--font-serif);
  letter-spacing: 0.12em;
  font-size: 13px;
}

/* —— 友情链接 —— */
.friend-links {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  background: rgba(247, 243, 234, 0.5);
}

.friend-links:has(.links-list:empty) {
  display: none;
}

.links-wrap {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.links-title {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  flex-shrink: 0;
  padding-top: 2px;
}

.links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.links-list a {
  font-size: 13px;
  color: var(--ink-mute);
}

.links-list a:hover {
  color: var(--cinnabar);
}

@media (max-width: 992px) {
  .intro-strip__inner,
  .news-layout,
  .oem-grid,
  .tab-panel.active {
    grid-template-columns: 1fr;
  }

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

  .news-featured,
  .news-featured img {
    min-height: 280px;
  }
}

@media (max-width: 640px) {
  .sec-head__title {
    font-size: 24px;
    letter-spacing: 0.16em;
  }

  .home-section {
    padding: 48px 0;
  }

  .product-list {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}