.page-news {
  --news-gap: clamp(1rem, 3vw, 1.75rem);
  --news-rule: rgba(107, 135, 168, 0.26);
}

.page-news .hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  display: block;
}

.page-news .stories-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(53, 224, 208, 0.14), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 138, 61, 0.1), transparent 60%),
    var(--ink-900);
}

.page-news .stories-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(2, 8, 18, 0.35) 0%, rgba(7, 20, 38, 0.86) 62%, var(--bg) 100%);
  pointer-events: none;
}

.page-news .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-news .breadcrumb {
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-news .breadcrumb a {
  color: var(--silver);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  color: var(--cyan);
}

.page-news .hero-title {
  margin: 0.35rem 0 0;
  font-size: clamp(2.9rem, 11vw, 6rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ice);
  text-shadow: 0 0 48px rgba(53, 224, 208, 0.18);
}

.page-news .hero-lede {
  max-width: 46ch;
  margin: 1rem 0 0;
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.8;
  color: var(--silver);
}

.page-news .hero-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.625rem;
}

.page-news .hero-index li a {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  align-items: center;
  gap: 0.875rem;
  padding: 0.85rem 1rem;
  background: rgba(13, 35, 64, 0.72);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  text-decoration: none;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .hero-index li a:hover,
.page-news .hero-index li a:focus-visible {
  background: rgba(53, 224, 208, 0.12);
  border-color: rgba(53, 224, 208, 0.5);
  transform: translateX(3px);
}

.page-news .idx-num {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-news .idx-body {
  display: grid;
  gap: 0.15rem;
}

.page-news .idx-label {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--ice);
}

.page-news .idx-meta {
  font-size: 0.8125rem;
  color: var(--steel);
  line-height: 1.5;
}

.page-news .feed-section {
  padding: clamp(2.25rem, 6vw, 4rem) 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .section-head {
  max-width: 62ch;
  margin-bottom: var(--news-gap);
}

.page-news .sec-title {
  margin: 0.4rem 0 0;
  font-size: clamp(1.5rem, 4.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-news .sec-lede {
  margin: 0.75rem 0 0;
  color: var(--text);
  line-height: 1.8;
}

.page-news .filter-bar {
  position: sticky;
  top: calc(var(--topbar-h) + 6px);
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 0;
  margin-bottom: 1.25rem;
  background: linear-gradient(180deg, rgba(7, 20, 38, 0.96), rgba(7, 20, 38, 0.82));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.page-news .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .filter-btn {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--silver);
  background: rgba(13, 35, 64, 0.7);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-news .filter-input:checked + .filter-btn {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-news .filter-input:focus-visible + .filter-btn {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-news .story-grid {
  display: grid;
  gap: 0.875rem;
}

.page-news .story-item {
  min-width: 0;
}

.page-news .story-link {
  display: block;
  position: relative;
  padding: 1.1rem 1.1rem 1.25rem;
  background: linear-gradient(150deg, rgba(13, 35, 64, 0.85), rgba(7, 20, 38, 0.92));
  border: 1px solid var(--line);
  border-top: 2px solid rgba(53, 224, 208, 0.32);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-news .story-link:hover,
.page-news .story-link:focus-visible {
  border-color: rgba(53, 224, 208, 0.55);
  border-top-color: var(--orange);
  transform: translateY(-3px);
  background: linear-gradient(150deg, rgba(18, 46, 82, 0.92), rgba(7, 20, 38, 0.96));
}

.page-news .story-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.page-news .story-num {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--steel);
  letter-spacing: 0.04em;
}

.page-news .story-cat {
  padding: 0.16rem 0.55rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  color: var(--cyan);
  border: 1px solid rgba(53, 224, 208, 0.4);
  background: rgba(53, 224, 208, 0.08);
}

.page-news .story-title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice);
}

.page-news .story-desc {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text);
}

.page-news .story-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-news .topic-section {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
  border-top: 1px solid var(--line);
}

.page-news .version-layout {
  display: grid;
  gap: var(--news-gap);
}

.page-news .version-figure {
  margin: 0;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  background: var(--ink-700);
}

.page-news .version-figure img,
.page-news .duo-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .version-figure figcaption {
  padding: 0.7rem 1rem 0.9rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--steel);
  border-top: 1px solid var(--line);
}

.page-news .version-cards {
  display: grid;
  gap: 0.875rem;
}

.page-news .topic-card {
  position: relative;
  padding: 1.15rem 1.15rem 1.25rem;
  background: rgba(13, 35, 64, 0.6);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-news .topic-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-news .topic-card h3,
.page-news .duo-body h3 {
  margin: 0 0 0.55rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ice);
}

.page-news .topic-card p {
  margin: 0 0 0.85rem;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--text);
}

.page-news .topic-link {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
  padding-bottom: 1px;
}

.page-news .topic-link:hover,
.page-news .topic-link:focus-visible {
  color: var(--ice);
  border-bottom-color: var(--ice);
}

.page-news .duo-grid {
  display: grid;
  gap: var(--news-gap);
}

.page-news .duo-card {
  display: grid;
  background: linear-gradient(160deg, rgba(13, 35, 64, 0.78), rgba(7, 20, 38, 0.9));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  overflow: hidden;
}

.page-news .duo-figure {
  margin: 0;
  background: var(--ink-700);
  border-bottom: 1px solid var(--line);
}

.page-news .duo-body {
  padding: 1.15rem;
}

.page-news .duo-body > p {
  margin: 0 0 0.9rem;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--text);
}

.page-news .duo-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.page-news .duo-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-news .duo-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-news .feedback {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.page-news .feedback-panel {
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.35rem, 4vw, 2.5rem);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(53, 224, 208, 0.16), transparent 60%),
    linear-gradient(140deg, rgba(13, 35, 64, 0.95), rgba(2, 8, 18, 0.95));
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-news .feedback-copy p:not(.kicker) {
  margin: 0.75rem 0 0;
  max-width: 52ch;
  color: var(--text);
  line-height: 1.8;
}

.page-news .feedback-side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-news .feedback-mail-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.page-news .feedback-mail {
  font-size: 0.875rem;
  color: var(--ice);
  word-break: break-all;
  padding: 0.5rem 0.8rem;
  background: rgba(53, 224, 208, 0.08);
  border: 1px solid rgba(53, 224, 208, 0.34);
}

.page-news .feedback-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
}

.page-news .feedback-links a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

.page-news .feedback-links a:hover,
.page-news .feedback-links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news:has(#f-ver:checked) .story-item:not([data-cat="ver"]),
.page-news:has(#f-team:checked) .story-item:not([data-cat="team"]),
.page-news:has(#f-guide:checked) .story-item:not([data-cat="guide"]),
.page-news:has(#f-column:checked) .story-item:not([data-cat="column"]),
.page-news:has(#f-data:checked) .story-item:not([data-cat="data"]),
.page-news:has(#f-report:checked) .story-item:not([data-cat="report"]),
.page-news:has(#f-help:checked) .story-item:not([data-cat="help"]) {
  display: none;
}

@media (min-width: 640px) {
  .page-news .story-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-news .story-item:nth-child(even) {
    margin-top: 1.5rem;
  }

  .page-news .feedback-panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .hero-inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: end;
    gap: 3rem;
  }

  .page-news .version-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 2rem;
  }

  .page-news .version-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .version-cards .topic-card:first-child {
    grid-column: 1 / -1;
  }

  .page-news .duo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }

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

  .page-news .story-item:nth-child(1),
  .page-news .story-item:nth-child(9) {
    grid-column: 1 / -1;
    margin-top: 0;
  }

  .page-news .story-item:nth-child(1) .story-title,
  .page-news .story-item:nth-child(9) .story-title {
    font-size: 1.375rem;
    line-height: 1.35;
  }

  .page-news .story-item:nth-child(1) .story-desc,
  .page-news .story-item:nth-child(9) .story-desc {
    max-width: 70ch;
  }

  .page-news .filter-bar {
    gap: 0.6rem;
  }
}

@media (min-width: 1100px) {
  .page-news .story-item:nth-child(3n) {
    margin-left: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .story-link,
  .page-news .hero-index li a,
  .page-news .filter-btn {
    transition: none;
  }

  .page-news .story-link:hover,
  .page-news .hero-index li a:hover {
    transform: none;
  }
}