.index-content-section {
  --index-ink: #172434;
  --index-muted: #6c7682;
  --index-accent: #bf2323;
  --index-line: #e2e5e8;
  background: #fff;
  color: var(--index-ink);
}

.index-content-shell {
  width: min(92%, 1392px);
  margin: 0 auto;
}

.index-section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 42px;
}

.index-section-kicker {
  display: block;
  margin-bottom: 9px;
  color: var(--index-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  line-height: 1;
}

.index-section-heading h2 {
  color: var(--index-ink);
  font-size: clamp(32px, 3.1vw, 48px);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: 1.08;
}

.index-section-more {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
  color: var(--index-accent);
  font-size: 16px;
  transition: color .25s ease;
}

.index-section-more i,
.index-news-link i {
  position: relative;
  display: inline-block;
  width: 28px;
  height: 1px;
  background: currentColor;
  transition: transform .25s ease;
}

.index-section-more i::after,
.index-news-link i::after {
  position: absolute;
  top: -4px;
  right: 0;
  width: 8px;
  height: 8px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.index-section-more:hover i,
.index-section-more:focus-visible i,
.index-news-card a:hover .index-news-link i,
.index-news-card a:focus-visible .index-news-link i {
  transform: translateX(6px);
}

.index-section-more:focus-visible,
.index-video-open:focus-visible,
.index-news-card a:focus-visible,
.index-news-tab:focus-visible {
  outline: 2px solid var(--index-accent);
  outline-offset: 4px;
}

/* 视频中心 */
.index-video-center {
  padding: clamp(76px, 8vw, 126px) 0 clamp(92px, 9vw, 144px);
}

.index-video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 2.25vw, 36px);
}

.index-video-card {
  min-width: 0;
}

.index-video-card:nth-child(3):last-child {
  grid-column: 1 / -1;
}

.index-video-open {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.index-video-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #17202a;
}

.index-video-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s cubic-bezier(.2, .7, .2, 1);
}

.index-video-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 16, 24, .04) 36%, rgba(8, 16, 24, .82) 100%),
    linear-gradient(90deg, rgba(8, 16, 24, .16), transparent 55%);
  pointer-events: none;
}

.index-video-play {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, .58);
  border-radius: 50%;
  background: rgba(10, 18, 26, .56);
  color: #fff;
  backdrop-filter: blur(8px);
  transition: background-color .25s ease, transform .25s ease;
}

.index-video-play i {
  width: 0;
  height: 0;
  margin-left: 3px;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 11px solid #fff;
}

.index-video-caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: clamp(24px, 3vw, 42px);
  color: #fff;
}

.index-video-caption > span {
  display: block;
  margin-bottom: 9px;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  letter-spacing: .12em;
}

.index-video-caption h3 {
  overflow: hidden;
  color: #fff;
  font-size: clamp(21px, 2vw, 30px);
  font-weight: 500;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.index-video-open:hover video {
  transform: scale(1.035);
}

.index-video-open:hover .index-video-play {
  background: var(--index-accent);
  transform: scale(1.08);
}

/* 视频放大播放 */
.index-video-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  visibility: hidden;
  align-items: center;
  justify-content: center;
  padding: clamp(18px, 4vw, 64px);
  opacity: 0;
  transition: visibility .3s ease, opacity .3s ease;
}

.index-video-modal.is-open {
  visibility: visible;
  opacity: 1;
}

.index-video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 14, 21, .9);
  backdrop-filter: blur(10px);
}

.index-video-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(1120px, 92vw);
  padding: 0;
  background: #111a23;
  box-shadow: 0 32px 90px rgba(4, 10, 16, .45);
  transform: translateY(16px) scale(.985);
  transition: transform .3s ease;
}

.index-video-modal.is-open .index-video-modal-dialog {
  transform: translateY(0) scale(1);
}

.index-video-modal-player {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #05090d;
}

.index-video-modal-player video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.index-video-modal-dialog h2 {
  overflow: hidden;
  margin: 0;
  padding: 20px 26px 22px;
  color: #fff;
  font-size: clamp(17px, 1.6vw, 23px);
  font-weight: 500;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.index-video-modal-close {
  position: absolute;
  top: -48px;
  right: 0;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 50%;
  background: rgba(10, 18, 26, .42);
  cursor: pointer;
  transition: background-color .25s ease, transform .25s ease;
}

.index-video-modal-close::before,
.index-video-modal-close::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 1px;
  background: #fff;
  content: "";
}

.index-video-modal-close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.index-video-modal-close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.index-video-modal-close:hover,
.index-video-modal-close:focus-visible {
  background: var(--index-accent);
  transform: rotate(6deg);
}

.index-video-modal-close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

body.index-video-modal-open {
  overflow: hidden;
}

/* 新闻中心 */
.index-news-center {
  padding: clamp(78px, 8vw, 122px) 0 clamp(100px, 10vw, 160px);
  background: #f6f7f8;
}

.index-news-heading {
  margin-bottom: 28px;
}

.index-news-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 38px;
  border-bottom: 1px solid #dfe3e7;
}

.index-news-tab {
  position: relative;
  min-width: 126px;
  padding: 15px 22px 17px;
  border: 0;
  background: transparent;
  color: #58636e;
  font: inherit;
  font-size: 16px;
  cursor: pointer;
  transition: color .25s ease, background-color .25s ease;
}

.index-news-tab::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--index-accent);
  content: "";
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease;
}

.index-news-tab:hover {
  color: var(--index-ink);
}

.index-news-tab.is-active {
  background: #fff;
  color: var(--index-accent);
  font-weight: 600;
}

.index-news-tab.is-active::after {
  transform: scaleX(1);
}

.index-news-panel[hidden] {
  display: none;
}

.index-news-panel.is-active {
  animation: index-news-reveal .45s ease both;
}

.index-news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.35vw, 38px);
}

.index-news-card {
  min-width: 0;
  background: #fff;
}

.index-news-card > a {
  display: flex;
  height: 100%;
  flex-direction: column;
  color: inherit;
}

.index-news-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1.48 / 1;
  background: #dfe4e8;
}

.index-news-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s cubic-bezier(.2, .7, .2, 1);
}

.index-news-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  flex-direction: column;
  padding: clamp(24px, 3vw, 44px);
  background: linear-gradient(145deg, rgba(201, 52, 47, .93), rgba(143, 23, 24, .96)), #bf2323;
  color: #fff;
}

.index-news-placeholder::before,
.index-news-placeholder::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, .19);
  content: "";
  transform: rotate(18deg);
}

.index-news-placeholder::before {
  top: -40%;
  right: -4%;
  width: 68%;
  height: 142%;
}

.index-news-placeholder::after {
  top: -18%;
  right: 22%;
  width: 32%;
  height: 105%;
}

.index-news-placeholder b,
.index-news-placeholder i {
  position: relative;
  z-index: 1;
}

.index-news-placeholder b {
  font-size: clamp(31px, 4vw, 58px);
  font-weight: 700;
  letter-spacing: -.06em;
  line-height: .88;
  opacity: .96;
}

.index-news-placeholder i {
  margin-top: 12px;
  font-size: 14px;
  font-style: normal;
  letter-spacing: .22em;
  opacity: .72;
}

.index-news-media time {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  display: flex;
  width: 88px;
  min-height: 88px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: var(--index-accent);
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.index-news-media time strong {
  font-size: 32px;
  font-weight: 600;
  line-height: 1;
}

.index-news-media time span {
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: .04em;
}

.index-news-content {
  display: flex;
  min-height: 230px;
  padding: 28px clamp(22px, 2.5vw, 36px) 30px;
  flex: 1;
  flex-direction: column;
}

.index-news-category {
  margin-bottom: 10px;
  color: var(--index-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
}

.index-news-content h3 {
  display: -webkit-box;
  overflow: hidden;
  margin-bottom: 13px;
  color: var(--index-ink);
  font-size: clamp(19px, 1.6vw, 23px);
  font-weight: 500;
  line-height: 1.46;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.index-news-content p {
  display: -webkit-box;
  overflow: hidden;
  margin-bottom: 24px;
  color: var(--index-muted);
  font-size: 14px;
  line-height: 1.8;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.index-news-link {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  margin-top: auto;
  color: #8a929a;
  font-size: 14px;
  transition: color .25s ease;
}

.index-news-link i {
  width: 22px;
}

.index-news-card a:hover .index-news-media img {
  transform: scale(1.045);
}

.index-news-card a:hover .index-news-link {
  color: var(--index-accent);
}

@keyframes index-news-reveal {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .index-news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .index-news-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    width: calc(50% - 10px);
  }
}

@media (max-width: 640px) {
  .index-content-shell {
    width: min(91%, 1392px);
  }

  .index-section-heading {
    align-items: center;
    gap: 18px;
    margin-bottom: 28px;
  }

  .index-section-kicker {
    margin-bottom: 7px;
    font-size: 10px;
  }

  .index-section-heading h2 {
    font-size: 30px;
  }

  .index-section-more {
    gap: 10px;
    font-size: 14px;
  }

  .index-section-more i {
    width: 20px;
  }

  .index-video-center {
    padding: 64px 0 82px;
  }

  .index-video-grid,
  .index-news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .index-video-card:nth-child(3):last-child,
  .index-news-card:last-child:nth-child(odd) {
    grid-column: auto;
    width: auto;
  }

  .index-video-caption {
    padding: 22px;
  }

  .index-video-caption h3 {
    font-size: 20px;
  }

  .index-video-play {
    top: 14px;
    right: 14px;
    width: 42px;
    height: 42px;
  }

  .index-video-modal {
    padding: 54px 14px 18px;
  }

  .index-video-modal-dialog {
    width: 100%;
  }

  .index-video-modal-dialog h2 {
    padding: 16px 18px 18px;
  }

  .index-video-modal-close {
    top: -46px;
  }

  .index-news-center {
    padding: 68px 0 94px;
  }

  .index-news-tabs {
    overflow-x: auto;
    margin-right: -4.5vw;
    margin-bottom: 26px;
    padding-right: 4.5vw;
    scrollbar-width: none;
  }

  .index-news-tabs::-webkit-scrollbar {
    display: none;
  }

  .index-news-tab {
    min-width: 104px;
    padding: 13px 16px 15px;
    font-size: 14px;
    white-space: nowrap;
  }

  .index-news-media {
    aspect-ratio: 1.5 / 1;
  }

  .index-news-media time {
    width: 74px;
    min-height: 74px;
  }

  .index-news-media time strong {
    font-size: 27px;
  }

  .index-news-content {
    min-height: 210px;
    padding: 24px 22px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .index-section-more i,
  .index-news-link i,
  .index-video-media video,
  .index-video-play,
  .index-video-modal,
  .index-video-modal-dialog,
  .index-news-media img,
  .index-news-panel.is-active {
    animation: none;
    transition: none;
  }
}