.page-news {
  --page-news-radius: 0px;
  --page-news-speed: 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-news__hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background-color: var(--color-deep-teal);
}

.page-news__hero-bg {
  position: absolute;
  inset: 0;
}

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

.page-news__hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(160deg, rgba(15, 76, 92, 0.72) 0%, rgba(15, 76, 92, 0.82) 45%, rgba(26, 26, 46, 0.92) 100%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
}

.page-news__hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-top: clamp(1.6rem, 5vw, 3rem);
  padding-bottom: clamp(1.8rem, 5vw, 3.4rem);
}

.page-news__hero-inner::after {
  content: "SYS // UPDATES // FEED-01";
  position: absolute;
  right: 0;
  bottom: 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.35);
  pointer-events: none;
}

.page-news .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.72);
}

.page-news .breadcrumbs a {
  color: var(--color-yellow);
  text-decoration: none;
  transition: color 0.25s;
}

.page-news .breadcrumbs a:hover {
  color: var(--color-white);
}

.page-news__crumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

.page-news__hero-inner .eyebrow {
  color: var(--color-yellow);
  margin-bottom: 0.35rem;
}

.page-news__hero-inner h1 {
  margin: 0 0 0.4em;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.6rem, 8vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--color-white);
}

.page-news__hero-desc {
  max-width: 34rem;
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.84);
}

.page-news__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.page-news__hero-actions .btn {
  border-radius: 0;
}

.page-news__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: 2rem;
  max-width: var(--container-main);
  margin: 0 auto;
  padding: clamp(1.4rem, 4vw, 2.8rem) var(--container-gutter) 4rem;
}

.page-news__index-inner {
  background:
    linear-gradient(rgba(209, 213, 219, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(209, 213, 219, 0.28) 1px, transparent 1px);
  background-size: 44px 44px;
  border: 1px solid var(--color-grid);
  padding: 1.2rem 1rem;
  position: relative;
}

.page-news__index-inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-red), var(--color-indigo));
}

.page-news__index-title {
  margin: 0.3rem 0 1rem;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.page-news__filter {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-news .filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid var(--color-grid);
  border-radius: 0;
  cursor: pointer;
  transition: background 0.28s, color 0.28s, border-color 0.28s;
}

.page-news .filter-btn:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.page-news .filter-btn[aria-pressed="true"] {
  color: var(--color-white);
  background: var(--color-red);
  border-color: var(--color-red);
}

.page-news .filter-btn[aria-pressed="true"] .page-news__filter-id {
  color: var(--color-yellow);
}

.page-news__filter-id {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--color-blue);
}

.page-news__index-note {
  margin: 1rem 0 0;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--color-slate);
  border-top: 1px dashed var(--color-grid);
  padding-top: 0.8rem;
}

.page-news__feed {
  min-width: 0;
}

.page-news__timeline {
  position: relative;
  padding-left: 1.15rem;
}

.page-news__timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-indigo) 0%, var(--color-blue) 30%, var(--color-red) 80%, transparent 100%);
  opacity: 0.7;
}

.page-news__card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-grid);
  border-radius: 0;
  margin-bottom: 1.6rem;
  overflow: hidden;
  transition: border-color 0.32s var(--page-news-speed), box-shadow 0.32s var(--page-news-speed);
}

.page-news__card::before {
  content: "";
  position: absolute;
  left: -0.5rem;
  top: 1.4rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--color-red);
  transform: rotate(45deg);
  z-index: 2;
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 1px rgba(255, 59, 48, 0.35);
}

.page-news__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 112px;
  height: 112px;
  background: repeating-linear-gradient(-45deg, transparent 0 6px, rgba(75, 0, 130, 0.05) 6px 7px);
  border-left: 1px solid rgba(75, 0, 130, 0.14);
  transform: skewY(-12deg);
  transform-origin: top right;
  pointer-events: none;
  z-index: 1;
}

.page-news__card:hover {
  border-color: var(--color-indigo);
  box-shadow: 8px 8px 0 rgba(75, 0, 130, 0.12);
}

.page-news__card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-light-gray);
  flex: 0 0 auto;
}

.page-news__card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--page-news-speed);
}

.page-news__card:hover .page-news__card-media img {
  transform: scale(1.05);
}

.page-news__card-media .tag {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  z-index: 3;
}

.page-news__card-body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.2rem 1.2rem 3rem;
  min-width: 0;
  z-index: 2;
}

.page-news__card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.page-news__card-date {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.page-news__card-date::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  background: var(--color-green);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-news .tag {
  font-size: 0.74rem;
  font-weight: 600;
  border-radius: 0;
  padding: 0.28rem 0.55rem;
  line-height: 1.2;
}

.page-news__cat--version {
  color: #0056b3;
  background: rgba(10, 132, 255, 0.1);
  border: 1px solid rgba(10, 132, 255, 0.3);
}

.page-news__cat--match {
  color: var(--color-red);
  background: rgba(255, 59, 48, 0.09);
  border: 1px solid rgba(255, 59, 48, 0.28);
}

.page-news__cat--brand {
  color: #856d00;
  background: rgba(255, 214, 10, 0.14);
  border: 1px solid rgba(255, 214, 10, 0.55);
}

.page-news__card-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.page-news__card-excerpt {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-slate);
}

.page-news__more {
  margin-top: 0.2rem;
  border-top: 1px dashed var(--color-grid);
  padding-top: 0.6rem;
}

.page-news__more summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-blue);
  max-width: fit-content;
  transition: color 0.25s;
}

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

.page-news__more summary::before {
  content: "+";
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--color-red);
  transition: transform 0.3s var(--page-news-speed);
}

.page-news__more[open] summary::before {
  content: "–";
}

.page-news__more summary:hover {
  color: var(--color-indigo);
}

.page-news__more-content {
  margin: 0.7rem 0 0;
  padding: 0.8rem 1rem 1rem;
  font-size: 0.87rem;
  line-height: 1.68;
  color: var(--color-slate);
  background:
    linear-gradient(rgba(242, 244, 248, 0.92), rgba(242, 244, 248, 0.92)),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 100% 100%, 22px 22px;
  border-left: 3px solid rgba(10, 132, 255, 0.35);
}

.page-news__card-num {
  position: absolute;
  right: 0.8rem;
  bottom: -0.45rem;
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(75, 0, 130, 0.3);
  pointer-events: none;
  user-select: none;
  z-index: 2;
}

.page-news__side {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  min-width: 0;
}

.page-news__side-card {
  position: relative;
  border: 1px solid var(--color-grid);
  border-radius: 0;
  padding: 1.3rem 1.2rem;
  background: var(--color-white);
  overflow: hidden;
}

.page-news__side-card::after {
  content: "";
  position: absolute;
  right: -0.6rem;
  bottom: -0.6rem;
  width: 3.5rem;
  height: 3.5rem;
  border: 1px solid rgba(75, 0, 130, 0.18);
  transform: rotate(18deg);
  pointer-events: none;
}

.page-news__side-card .eyebrow {
  margin-bottom: 0.2rem;
}

.page-news__side-card h2 {
  margin: 0.2rem 0 0.7rem;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-ink);
}

.page-news__side-desc {
  margin: 0 0 1rem;
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--color-slate);
}

.page-news__hot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news__hot-tag {
  border: 1px solid var(--color-grid);
  background: var(--color-light-gray);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.42rem 0.72rem;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.page-news__hot-tag:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: rgba(10, 132, 255, 0.07);
}

.page-news__help .btn {
  margin-top: 0.2rem;
  border-radius: 0;
}

.page-news__help-mail {
  margin: 0.9rem 0 0;
  font-size: 0.8rem;
  border-top: 1px dashed var(--color-grid);
  padding-top: 0.7rem;
}

.page-news__help-mail a {
  color: var(--color-blue);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.25s;
}

.page-news__help-mail a:hover {
  color: var(--color-indigo);
  text-decoration: underline;
}

@media (min-width: 1024px) {
  .page-news__hero {
    min-height: 420px;
  }

  .page-news__hero-inner {
    padding-bottom: 3.4rem;
  }

  .page-news__layout {
    grid-template-columns: 200px minmax(0, 1fr) 280px;
    gap: 1.8rem;
    padding-top: 2.6rem;
  }

  .page-news__index-inner {
    position: sticky;
    top: calc(var(--topbar-height) + 1.2rem);
  }

  .page-news__filter {
    flex-direction: column;
    overflow: visible;
    gap: 0.45rem;
  }

  .page-news .filter-btn {
    width: 100%;
    justify-content: flex-start;
  }

  .page-news__timeline {
    padding-left: 1.6rem;
  }

  .page-news__card::before {
    left: -0.72rem;
  }

  .page-news__card--media {
    flex-direction: row;
    align-items: stretch;
  }

  .page-news__card--media .page-news__card-media {
    order: 2;
    width: 280px;
    flex: 0 0 280px;
    aspect-ratio: auto;
    min-height: 210px;
  }

  .page-news__card--media .page-news__card-body {
    flex: 1;
  }

  .page-news__card-title {
    font-size: 1.28rem;
  }

  .page-news__card-excerpt {
    font-size: 0.92rem;
  }
}

@media (min-width: 1280px) {
  .page-news__layout {
    grid-template-columns: 220px minmax(0, 1fr) 300px;
    gap: 2.4rem;
  }

  .page-news__card--media .page-news__card-media {
    width: 320px;
    flex-basis: 320px;
  }

  .page-news__card-title {
    font-size: 1.34rem;
  }

  .page-news__timeline {
    padding-left: 1.8rem;
  }
}