.page-news {
  --news-grid-line: rgba(30, 74, 60, 0.38);
  --news-wash: rgba(55, 245, 193, 0.06);
  --news-coral-wash: rgba(255, 107, 74, 0.08);
}

/* ---------- hero ---------- */
.page-news .obs-hero {
  position: relative;
  padding: clamp(20px, 4vw, 32px) 0 clamp(32px, 6vw, 64px);
  border-bottom: 1px solid var(--line);
  background-image:
    repeating-linear-gradient(to right, var(--news-grid-line) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(to bottom, var(--news-grid-line) 0 1px, transparent 1px 72px);
  background-position: -1px -1px;
  overflow: hidden;
}

.page-news .obs-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% 45%;
  height: 240px;
  background: radial-gradient(ellipse at center, rgba(55, 245, 193, 0.12), transparent 70%);
  pointer-events: none;
}

.page-news .obs-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-news .obs-hero__main {
  max-width: 44em;
}

.page-news .obs-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-news .obs-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .obs-lead {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

.page-news .obs-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-news .obs-hero__stats {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .obs-stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--ink-2);
}

.page-news .obs-stat__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 38px;
  line-height: 0.9;
  letter-spacing: 0.01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  min-width: 2.4em;
}

.page-news .obs-stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- section shell ---------- */
.page-news .obs-section {
  position: relative;
  padding: clamp(44px, 8vw, 88px) 0;
}

.page-news .obs-stream {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-news .obs-section__head {
  max-width: 52em;
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-news .obs-index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .obs-section__head h2,
.page-news .obs-split h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .obs-section__note {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- cover ---------- */
.page-news .obs-cover {
  margin: 0 0 clamp(24px, 4vw, 40px);
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .obs-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .obs-cover figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- filter board ---------- */
.page-news .obs-board {
  position: relative;
}

.page-news .obs-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.page-news .obs-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-news .obs-chip {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-2);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-news .obs-chip:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

.page-news #obs-all:focus-visible ~ .obs-chips .obs-chip[for="obs-all"],
.page-news #obs-round:focus-visible ~ .obs-chips .obs-chip[for="obs-round"],
.page-news #obs-trans:focus-visible ~ .obs-chips .obs-chip[for="obs-trans"],
.page-news #obs-method:focus-visible ~ .obs-chips .obs-chip[for="obs-method"],
.page-news #obs-ver:focus-visible ~ .obs-chips .obs-chip[for="obs-ver"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news #obs-all:checked ~ .obs-chips .obs-chip[for="obs-all"],
.page-news #obs-round:checked ~ .obs-chips .obs-chip[for="obs-round"],
.page-news #obs-trans:checked ~ .obs-chips .obs-chip[for="obs-trans"],
.page-news #obs-method:checked ~ .obs-chips .obs-chip[for="obs-method"],
.page-news #obs-ver:checked ~ .obs-chips .obs-chip[for="obs-ver"] {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink);
}

.page-news #obs-round:checked ~ .obs-list .obs-item:not(.cat-round),
.page-news #obs-trans:checked ~ .obs-list .obs-item:not(.cat-trans),
.page-news #obs-method:checked ~ .obs-list .obs-item:not(.cat-method),
.page-news #obs-ver:checked ~ .obs-list .obs-item:not(.cat-ver) {
  display: none;
}

/* ---------- list ---------- */
.page-news .obs-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .obs-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 20px;
  padding: 18px 12px 18px 8px;
  border-bottom: 1px solid var(--line);
  transition: background 150ms var(--ease), box-shadow 150ms var(--ease);
}

.page-news .obs-item:hover {
  background: linear-gradient(90deg, var(--news-wash), transparent 70%);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.page-news .obs-item__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-top: 2px;
}

.page-news .obs-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .obs-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .obs-item__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .obs-item__sum {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- categories ---------- */
.page-news .obs-cats {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .obs-cats__grid {
  display: grid;
  gap: 28px;
}

.page-news .obs-cats__text {
  margin: 0 0 20px;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

.page-news .obs-cats__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-news .obs-cats__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .obs-cat-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .obs-cat-card {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  transition: border-color 150ms var(--ease), transform 150ms var(--ease), background 150ms var(--ease);
}

.page-news .obs-cat-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .obs-cat-card__no {
  grid-row: span 3;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .obs-cat-card__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  color: var(--paper);
}

.page-news .obs-cat-card__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--silver);
}

.page-news .obs-cat-card__count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .obs-cat-card--reset {
  background: var(--ink);
  border-style: dashed;
}

/* ---------- method ---------- */
.page-news .obs-method__grid {
  display: grid;
  gap: 28px;
  margin-bottom: 32px;
}

.page-news .obs-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .obs-step {
  padding: 18px;
  background: var(--ink-2);
}

.page-news .obs-step__no {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 28px;
  line-height: 1;
  color: var(--coral);
  font-variant-numeric: tabular-nums;
}

.page-news .obs-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-news .obs-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-news .obs-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-news .obs-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .obs-table-wrap {
  border: 1px solid var(--line);
}

.page-news .obs-table-wrap .data-table {
  min-width: 560px;
}

.page-news .obs-table-wrap .data-table tbody tr:nth-child(odd) {
  background: var(--panel);
}

.page-news .obs-table-wrap .data-table tbody tr:nth-child(even) {
  background: transparent;
}

.page-news .obs-table-wrap .data-table td,
.page-news .obs-table-wrap .data-table th {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.page-news .obs-table-wrap .data-table td.is-up {
  color: var(--cyan);
}

.page-news .obs-table-wrap .data-table td.is-down {
  color: var(--coral);
}

.page-news .obs-source {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- table read ---------- */
.page-news .obs-table-read {
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--ink) 70%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .obs-split {
  display: grid;
  gap: 28px;
}

.page-news .obs-split__text p {
  max-width: 36em;
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--silver);
}

.page-news .obs-split__text .btn {
  margin-top: 8px;
}

.page-news .obs-split__figure {
  margin: 0;
  align-self: start;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .obs-split__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 5;
  object-fit: cover;
}

.page-news .obs-split__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- transfer window ---------- */
.page-news .obs-window__grid {
  display: grid;
  gap: 14px;
}

.page-news .obs-window__card {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-news .obs-window__card--peak {
  background: linear-gradient(150deg, var(--news-coral-wash), var(--ink-2) 65%);
  border-color: rgba(255, 107, 74, 0.4);
}

.page-news .obs-window__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-news .obs-window__card--peak .obs-window__label {
  color: var(--coral);
}

.page-news .obs-window__num {
  margin: 0;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(48px, 12vw, 72px);
  line-height: 0.9;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-news .obs-window__unit {
  margin: 6px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .obs-window__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-news .obs-window__note {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .obs-window__note h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  color: var(--paper);
}

.page-news .obs-window__note p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- next ---------- */
.page-news .obs-next__grid {
  display: grid;
  gap: 12px;
}

.page-news .obs-next__card {
  display: block;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  text-decoration: none;
  transition: border-color 150ms var(--ease), transform 150ms var(--ease);
}

.page-news .obs-next__card:hover,
.page-news .obs-next__card:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .obs-next__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-news .obs-next__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-news .obs-next__card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

.page-news .obs-next__more {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .page-news .obs-item {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 22px 16px 22px 10px;
  }

  .page-news .obs-cat-list {
    gap: 12px;
  }

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

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

  .page-news .obs-window__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .page-news .obs-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
  }

  .page-news .obs-hero__stats {
    gap: 1px;
    border-left: 2px solid var(--cyan);
  }

  .page-news .obs-cats__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .obs-method__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 24px;
    align-items: start;
  }

  .page-news .obs-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .obs-window__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: stretch;
  }

  .page-news .obs-window__note {
    grid-column: auto;
  }

  .page-news .obs-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-item,
  .page-news .obs-chip,
  .page-news .obs-cat-card,
  .page-news .obs-next__card {
    transition: none;
  }

  .page-news .obs-cat-card:hover,
  .page-news .obs-next__card:hover,
  .page-news .obs-next__card:focus-visible {
    transform: none;
  }
}