.page-news {
  --news-line: rgba(56, 242, 208, 0.18);
  --news-line-soft: rgba(242, 247, 244, 0.1);
  --news-rail-width: 264px;
  color: var(--snow);
  background:
    radial-gradient(90% 60% at 88% -8%, rgba(56, 242, 208, 0.1), transparent 62%),
    linear-gradient(180deg, rgba(13, 43, 36, 0.55), transparent 28%);
  padding-bottom: clamp(48px, 9vw, 108px);
  overflow-x: clip;
}

.page-news .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

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

/* topbar */
.page-news .news-topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--news-line);
}

.page-news .news-topbar__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-topbar__meta .mono {
  color: var(--ochre);
  margin-right: 6px;
}

/* hero */
.page-news .news-hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(24px, 4vw, 48px);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-news .news-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 8.6vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.04em;
  color: var(--snow);
}

.page-news .news-hero__lead .lede {
  margin: 18px 0 0;
  max-width: 46ch;
  color: var(--mist);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-hero__actions .btn {
  min-height: 44px;
}

.page-news .news-hero__media {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-ink);
  background: var(--ink-2);
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

.page-news .news-hero__media figcaption {
  border-top: 2px solid var(--news-line);
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* layout */
.page-news .news-layout {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-news .news-rail__sticky {
  border: 2px solid var(--news-line);
  background: rgba(13, 43, 36, 0.7);
  padding: 18px 16px 20px;
  box-shadow: var(--shadow-ink);
}

.page-news .news-rail .chapter-mark {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ochre);
}

.page-news .news-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-news .news-rail__toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .news-rail__toc a {
  display: block;
  min-height: 40px;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
}

.page-news .news-rail__toc a:hover,
.page-news .news-rail__toc a:focus-visible {
  border-left-color: var(--cyan);
  color: var(--cyan-soft);
  background: rgba(56, 242, 208, 0.07);
}

.page-news .news-rail__cta {
  min-height: 44px;
  width: 100%;
  margin-top: 16px;
}

.page-news .news-main {
  min-width: 0;
  display: grid;
  gap: clamp(44px, 7vw, 88px);
}

/* stream */
.page-news .news-stream__head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--cyan);
}

.page-news .news-stream__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  letter-spacing: -0.03em;
  color: var(--snow);
}

.page-news .news-stream__note {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-news .stream__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 8px;
}

.page-news .stream__chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border: 2px solid var(--news-line-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  cursor: pointer;
  user-select: none;
}

.page-news .stream__chip:hover {
  border-color: var(--line);
  color: var(--snow);
}

.page-news .stream__radio:focus-visible ~ .stream__filters {
  outline: 2px dashed var(--cyan);
  outline-offset: 6px;
}

.page-news #sf-all:checked ~ .stream__filters .stream__chip[for="sf-all"],
.page-news #sf-tactics:checked ~ .stream__filters .stream__chip[for="sf-tactics"],
.page-news #sf-data:checked ~ .stream__filters .stream__chip[for="sf-data"],
.page-news #sf-preview:checked ~ .stream__filters .stream__chip[for="sf-preview"],
.page-news #sf-version:checked ~ .stream__filters .stream__chip[for="sf-version"],
.page-news #sf-usage:checked ~ .stream__filters .stream__chip[for="sf-usage"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-news #sf-tactics:checked ~ .stream__list .stream__item:not(.is-tactics),
.page-news #sf-data:checked ~ .stream__list .stream__item:not(.is-data),
.page-news #sf-preview:checked ~ .stream__list .stream__item:not(.is-preview),
.page-news #sf-version:checked ~ .stream__list .stream__item:not(.is-version),
.page-news #sf-usage:checked ~ .stream__list .stream__item:not(.is-usage) {
  display: none;
}

.page-news .stream__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: stream;
}

.page-news .stream__item {
  border-top: 2px solid var(--news-line-soft);
  padding: 22px 0 26px;
}

.page-news .stream__item:first-child {
  border-top-color: var(--line);
}

.page-news .stream__figure {
  margin: 0 0 18px;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-ink);
}

.page-news .stream__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .stream__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-news .stream__no {
  font-size: 22px;
  font-weight: 700;
  color: var(--ochre);
  line-height: 1;
}

.page-news .stream__when {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news .stream__headline {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 4.4vw, 1.85rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-news .stream__item:hover .stream__headline {
  color: var(--cyan-soft);
}

.page-news .stream__excerpt {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .stream__byline {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(159, 184, 175, 0.9);
}

/* series */
.page-news .news-series__head {
  max-width: 60ch;
}

.page-news .news-series__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5.6vw, 2.6rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.page-news .news-series__intro {
  margin: 0 0 26px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .news-series__grid {
  display: grid;
  gap: 16px;
}

.page-news .series-card {
  border: 2px solid var(--news-line-soft);
  border-left: 4px solid var(--ochre);
  background: rgba(13, 43, 36, 0.62);
  padding: 20px 18px 22px;
}

.page-news .series-card--data {
  border-left-color: var(--gold);
}

.page-news .series-card--preview {
  border-left-color: var(--flag-red);
}

.page-news .series-card--version {
  border-left-color: var(--flag-green);
}

.page-news .series-card--usage {
  border-left-color: var(--cyan);
}

.page-news .series-card__no {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1;
  color: var(--mist);
}

.page-news .series-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-news .series-card__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .series-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

/* authors */
.page-news .news-authors__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-news .news-authors__title {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5.4vw, 2.5rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.page-news .news-authors__text {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-authors__grid-tags {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-news .author-group {
  border: 2px solid var(--news-line-soft);
  border-top: 2px solid var(--line);
  background: rgba(13, 43, 36, 0.5);
  padding: 14px 16px;
}

.page-news .author-group__name {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ochre);
}

.page-news .author-group__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.page-news .author-group__tags span {
  padding: 3px 9px;
  border: 1px solid var(--news-line);
  font-size: 13px;
  color: var(--snow);
}

.page-news .news-authors__media {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-news .news-authors__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-authors__media figcaption {
  border-top: 2px solid var(--news-line);
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  background: var(--ink-2);
}

/* path */
.page-news .news-path__title {
  margin: 10px 0 24px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5.4vw, 2.5rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.page-news .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .path-step {
  position: relative;
  border: 2px solid var(--news-line-soft);
  padding: 18px 18px 20px;
  background:
    linear-gradient(90deg, rgba(56, 242, 208, 0.06), transparent 55%);
}

.page-news .path-step__no {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1;
  color: var(--cyan);
}

.page-news .path-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--snow);
}

.page-news .path-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .path-step__text a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* rhythm */
.page-news .news-rhythm__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-news .news-rhythm__title {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5.4vw, 2.4rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.page-news .news-rhythm__text {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .rhythm-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 2px solid var(--news-line);
  padding-top: 16px;
}

.page-news .rhythm-list li {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
  padding-left: 14px;
  border-left: 2px solid rgba(184, 107, 60, 0.6);
}

.page-news .rhythm-list .mono {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 2px;
}

.page-news .news-rhythm__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border-top: 2px solid var(--news-line);
  border-bottom: 2px solid var(--news-line);
  padding: 16px 0;
}

.page-news .rhythm-stat__num {
  margin: 0;
  font-size: clamp(1.7rem, 7vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-news .rhythm-stat__label {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-rhythm__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-rhythm__actions .btn {
  min-height: 44px;
}

.page-news .news-rhythm__media {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-ink);
}

.page-news .news-rhythm__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-news .news-rhythm__media figcaption {
  border-top: 2px solid var(--news-line);
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  background: var(--ink-2);
}

@media (min-width: 620px) {
  .page-news .news-series__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-news .path-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .stream__item {
    padding: 26px 0 30px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
  }

  .page-news .news-hero__lead {
    padding-bottom: 8px;
  }

  .page-news .news-series__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .series-card:nth-child(2) {
    transform: translateY(18px);
  }

  .page-news .series-card:nth-child(5) {
    transform: translateY(18px);
  }

  .page-news .news-authors__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-news .news-authors__grid-tags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-news .path-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-news .news-rhythm__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail-width) minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .news-rail__sticky {
    position: sticky;
    top: 108px;
  }

  .page-news .stream__item {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    column-gap: 20px;
  }

  .page-news .stream__figure {
    grid-column: 1 / -1;
    margin-bottom: 20px;
  }

  .page-news .stream__meta,
  .page-news .stream__headline,
  .page-news .stream__excerpt,
  .page-news .stream__byline {
    grid-column: 2;
  }

  .page-news .stream__meta {
    grid-column: 2;
    margin-top: 2px;
  }

  .page-news .stream__no {
    font-size: 26px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-series__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .series-card:nth-child(even) {
    transform: translateY(24px);
  }

  .page-news .series-card:nth-child(3) {
    transform: translateY(8px);
  }

  .page-news .news-rhythm__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-card {
    transform: none !important;
  }
}