.page-news {
  --news-bg: #F2F3F6;
  --news-primary: #0B1D3A;
  --news-gold: #F4B400;
  --news-gold-deep: #C58B00;
  --news-red: #E63946;
  --news-blue: #1BA8D4;
  --news-light-gold: #F7E7A6;
  --news-mid: #6C757D;
  --news-line: #E6E8EB;
  --news-grid-line: rgba(244, 180, 0, 0.09);
  --news-card-shadow-hover: 0 14px 32px rgba(11, 29, 58, 0.14);
  background: var(--news-bg);
  font-family: var(--font-body);
  overflow-x: hidden;
  color: var(--color-dark);
}

.page-news .news-hero {
  position: relative;
  background:
    radial-gradient(circle at 14% 18%, rgba(27, 168, 212, 0.28), transparent 42%),
    radial-gradient(circle at 90% 88%, rgba(244, 180, 0, 0.16), transparent 34%),
    var(--news-primary);
  color: #fff;
  padding: calc(var(--header-offset) + 76px) 1.25rem var(--space-4);
  overflow: hidden;
}

.page-news .news-hero__grid {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--news-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--news-grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
}

.page-news .news-hero__glow {
  pointer-events: none;
  position: absolute;
  right: -80px;
  top: -80px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(244, 180, 0, 0.22);
  filter: blur(52px);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-news .news-hero__inner .breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: var(--space-4);
}

.page-news .news-hero__inner .breadcrumb-item + .breadcrumb-item::before {
  content: "⁄";
  margin-right: 0.5rem;
  color: rgba(244, 180, 0, 0.6);
}

.page-news .news-hero__inner .breadcrumb-item a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.page-news .news-hero__inner .breadcrumb-item a:hover {
  color: var(--color-gold);
}

.page-news .news-hero__content {
  max-width: 680px;
}

.page-news .news-hero__content h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin: var(--space-3) 0 var(--space-2);
}

.page-news .news-hero__lead {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.page-news .news-hero__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: var(--space-4);
}

.page-news .news-hero__stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(244, 180, 0, 0.16);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  backdrop-filter: blur(6px);
}

.page-news .news-hero__stat span {
  display: block;
  font-family: var(--font-accent);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-gold);
}

.page-news .news-hero__stat small {
  display: block;
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.75rem;
}

.page-news .news-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
  opacity: 0.92;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.25);
}

.page-news .news-layout {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-5) 1.25rem var(--space-6);
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

.page-news .news-sidebar__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: rgba(11, 29, 58, 0.92);
  border: 1px solid rgba(244, 180, 0, 0.28);
  border-radius: var(--radius-lg);
  padding: 1rem;
  backdrop-filter: blur(10px);
}

.page-news .news-sidebar__label {
  flex: 0 0 100%;
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--color-light-gold);
  margin-bottom: 0.25rem;
}

.page-news .news-sidebar__item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(244, 180, 0, 0.2);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-news .news-sidebar__item:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-news .news-sidebar__item.is-active {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-primary);
  font-weight: 700;
}

.page-news .news-sidebar__note {
  flex: 0 0 100%;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
  border-top: 1px solid rgba(244, 180, 0, 0.15);
  padding-top: 0.75rem;
}

.page-news .news-content {
  min-width: 0;
}

.page-news .news-block {
  position: relative;
  margin-bottom: var(--space-5);
}

.page-news .news-block:last-child {
  margin-bottom: 0;
}

.page-news .news-block__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin: 0 0 var(--space-4);
}

.page-news .chapter-number {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: clamp(2.6rem, 6vw, 3.75rem);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(244, 180, 0, 0.6);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.page-news .news-block__head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3vw, 1.875rem);
  color: var(--color-primary);
  line-height: 1.25;
}

.page-news .news-block__head p {
  color: var(--color-mid);
  font-size: 0.9375rem;
  margin-top: 0.5rem;
  line-height: 1.7;
  max-width: 520px;
}

.page-news .news-list {
  display: grid;
  gap: 1rem;
}

.page-news .news-card {
  display: grid;
  gap: 0.875rem;
  background: #fff;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}

.page-news .news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--news-card-shadow-hover);
  border-color: rgba(244, 180, 0, 0.55);
}

.page-news .news-card:target {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-gold);
}

.page-news .news-card--feature {
  border-top: 3px solid var(--color-blue);
}

.page-news .news-card--update {
  border-top: 3px solid var(--color-red);
}

.page-news .news-card--announce {
  border-top: 3px solid var(--color-gold);
}

.page-news .news-card__num {
  font-family: var(--font-accent);
  font-size: clamp(2.25rem, 5vw, 3rem);
  line-height: 1;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(197, 139, 0, 0.35);
  white-space: nowrap;
}

.page-news .news-card__content {
  min-width: 0;
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin-bottom: 0.5rem;
}

.page-news .news-card__meta time {
  font-family: var(--font-accent);
  font-size: var(--fs-small);
  color: var(--color-mid);
}

.page-news .news-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--color-primary);
  line-height: 1.45;
  margin-bottom: 0.5rem;
}

.page-news .news-card__content > p {
  color: var(--color-mid);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-news .news-card__details {
  margin-top: 0.4rem;
}

.page-news .news-card__details summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gold-deep);
}

.page-news .news-card__details summary::-webkit-details-marker {
  display: none;
}

.page-news .news-card__details summary::before {
  content: "＋";
  font-size: 0.85rem;
  transition: transform var(--dur-fast) var(--ease);
}

.page-news .news-card__details[open] summary::before {
  transform: rotate(45deg);
}

.page-news .news-card__details p {
  margin-top: 0.875rem;
  padding: 0.875rem 1rem;
  background: rgba(247, 231, 166, 0.18);
  border-left: 3px solid rgba(244, 180, 0, 0.7);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-mid);
}

.page-news .news-illustration {
  margin-top: var(--space-4);
  background: var(--color-light-gold);
  border-radius: var(--radius-lg);
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: center;
}

.page-news .news-illustration img {
  width: 100%;
  max-width: 340px;
  height: auto;
  border-radius: var(--radius-md);
  margin: 0 auto;
  display: block;
}

.page-news .news-illustration__note {
  font-size: 0.9rem;
  color: var(--color-mid);
  line-height: 1.7;
  text-align: center;
}

.page-news .news-block--version {
  background: linear-gradient(145deg, rgba(11, 29, 58, 0.97), rgba(11, 29, 58, 0.88));
  border-radius: var(--radius-lg);
  padding: var(--space-4) 1.25rem;
  overflow: hidden;
}

.page-news .news-block--version::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(244, 180, 0, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 180, 0, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  border-radius: inherit;
}

.page-news .news-block--version .news-block__head {
  position: relative;
  z-index: 1;
}

.page-news .news-block--version .news-block__head h2 {
  color: #fff;
}

.page-news .news-block--version .news-block__head p {
  color: rgba(255, 255, 255, 0.55);
}

.page-news .news-block--version .chapter-number {
  -webkit-text-stroke: 2px rgba(244, 180, 0, 0.75);
}

.page-news .version-timeline {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.8rem;
}

.page-news .version-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(244, 180, 0, 0.16);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.page-news .version-item[open] {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(244, 180, 0, 0.45);
}

.page-news .version-item__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.3rem 0.75rem;
  align-items: baseline;
  padding: 1.1rem;
  cursor: pointer;
  list-style: none;
}

.page-news .version-item__head::-webkit-details-marker {
  display: none;
}

.page-news .version-item__head::after {
  content: "展开";
  font-family: var(--font-accent);
  font-size: 0.7rem;
  color: rgba(244, 180, 0, 0.8);
  justify-self: end;
  align-self: center;
}

.page-news .version-item[open] .version-item__head::after {
  content: "收起";
}

.page-news .version-item__tag {
  grid-column: 1 / -1;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--color-light-gold);
  text-transform: uppercase;
}

.page-news .version-item__ver {
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-gold);
  line-height: 1;
}

.page-news .version-item__stage {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.48);
  font-family: var(--font-accent);
}

.page-news .version-item__title {
  grid-column: 1 / -1;
  margin-top: 0.25rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
}

.page-news .version-item__diff {
  padding: 0 1.1rem 1.1rem;
  border-top: 1px solid rgba(244, 180, 0, 0.16);
}

.page-news .version-item__diff p {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-news .version-item__diff .btn {
  margin-top: 1rem;
  color: var(--color-gold);
  border-color: rgba(244, 180, 0, 0.75);
  background: transparent;
}

.page-news .version-item__diff .btn:hover {
  background: var(--color-gold);
  color: var(--color-primary);
  border-color: var(--color-gold);
}

.page-news .version-roadmap {
  position: relative;
  z-index: 1;
  margin-top: var(--space-4);
}

.page-news .version-roadmap img {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}

.page-news .announce-grid {
  display: grid;
  gap: 1.25rem;
}

.page-news .announce-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: #fff;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}

.page-news .announce-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--news-card-shadow-hover);
}

.page-news .announce-card::after {
  content: "";
  position: absolute;
  right: -32px;
  bottom: -32px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: rgba(244, 180, 0, 0.14);
  pointer-events: none;
}

.page-news .announce-card__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 1rem;
  overflow: hidden;
  box-shadow: 0 0 0 4px rgba(244, 180, 0, 0.14);
}

.page-news .announce-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .announce-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-primary);
  line-height: 1.4;
}

.page-news .announce-card__time {
  font-family: var(--font-accent);
  font-size: 0.8125rem;
  color: var(--color-gold-deep);
}

.page-news .announce-card > p:not(.announce-card__time) {
  font-size: 0.9rem;
  color: var(--color-mid);
  line-height: 1.75;
  flex: 1;
}

.page-news .announce-card .btn {
  align-self: flex-start;
  color: var(--color-primary);
  border-color: rgba(11, 29, 58, 0.25);
  background: transparent;
}

.page-news .announce-card .btn:hover {
  background: var(--color-primary);
  color: var(--color-gold);
  border-color: var(--color-primary);
}

@media (min-width: 600px) {
  .page-news .news-hero__meta {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .news-illustration {
    grid-template-columns: 300px 1fr;
    padding: 1.2rem;
  }

  .page-news .news-illustration img {
    margin: 0;
  }

  .page-news .news-illustration__note {
    text-align: left;
  }

  .page-news .announce-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: calc(var(--header-offset) + 104px) 2rem var(--space-5);
  }

  .page-news .news-hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
    grid-template-areas:
      "crumb crumb"
      "content visual";
    gap: 0 2.5rem;
    align-items: end;
  }

  .page-news .news-hero__inner .breadcrumb-list {
    grid-area: crumb;
  }

  .page-news .news-hero__content {
    grid-area: content;
  }

  .page-news .news-hero__img {
    grid-area: visual;
    margin-top: 0;
    max-height: 320px;
  }

  .page-news .news-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 2.5rem;
    padding: var(--space-6) 2rem var(--space-7);
  }

  .page-news .news-sidebar__inner {
    position: sticky;
    top: calc(var(--header-offset) + 84px);
    display: block;
  }

  .page-news .news-sidebar__label {
    margin-bottom: 0.75rem;
  }

  .page-news .news-sidebar__item {
    display: flex;
    width: 100%;
    margin-bottom: 0.6rem;
    justify-content: space-between;
  }

  .page-news .news-sidebar__item::after {
    content: "→";
    color: rgba(244, 180, 0, 0.5);
    font-family: var(--font-accent);
    transition: transform var(--dur-fast) var(--ease);
  }

  .page-news .news-sidebar__item:hover::after {
    transform: translateX(4px);
  }

  .page-news .news-card {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 1.25rem;
    padding: 1.5rem;
  }

  .page-news .news-card__num {
    font-size: 3.25rem;
  }

  .page-news .news-block--version {
    padding: var(--space-5) 2rem;
  }

  .page-news .announce-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}