/* ===== 星空观察 / page-news ===== */
.page-news {
  --obs-max: 1180px;
  --obs-narrow: 820px;
  --obs-gutter: clamp(20px, 5vw, 56px);
  background: var(--deep);
  color: var(--ink);
}

.page-news .obs-shell {
  width: 100%;
  max-width: var(--obs-max);
  margin-inline: auto;
  padding-inline: var(--obs-gutter);
  box-sizing: border-box;
}

.page-news .obs-shell--narrow {
  max-width: calc(var(--obs-narrow) + var(--obs-gutter) * 2);
}

/* ---------- 首屏 ---------- */
.page-news .obs-hero {
  position: relative;
  padding-block: calc(var(--header-h) + clamp(52px, 11vw, 116px)) clamp(44px, 8vw, 84px);
  background:
    radial-gradient(88% 68% at 80% 6%, rgba(108, 74, 182, 0.42), transparent 64%),
    radial-gradient(58% 48% at 8% 92%, rgba(62, 198, 198, 0.16), transparent 72%),
    var(--deep);
  overflow: hidden;
}

.page-news .obs-hero::after {
  content: "";
  position: absolute;
  left: 24%;
  right: -30%;
  top: -40%;
  bottom: -55%;
  border: 1px solid rgba(108, 74, 182, 0.3);
  border-radius: 50%;
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-news .obs-hero > .obs-shell {
  position: relative;
  z-index: 1;
}

.page-news .obs-hero .breadcrumbs {
  margin: 0 0 clamp(20px, 3vw, 34px);
}

.page-news .obs-hero__title {
  margin: 6px 0 0.24em;
  color: var(--gold);
  background: linear-gradient(96deg, var(--gold) 0%, #FFF7DC 44%, var(--ink) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-news .obs-hero__lede {
  max-width: 60ch;
  margin: 0;
}

.page-news .obs-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .obs-hero__note {
  position: absolute;
  right: var(--obs-gutter);
  bottom: -6px;
  color: var(--ink-2);
}

/* ---------- 通用区块 ---------- */
.page-news .obs-section {
  padding-block: clamp(54px, 8vw, 106px);
  position: relative;
}

.page-news .obs-section--stream {
  background: linear-gradient(180deg, rgba(20, 27, 60, 0) 0%, var(--panel) 12%, var(--panel) 88%, rgba(20, 27, 60, 0) 100%);
}

.page-news .obs-section--data,
.page-news .obs-section--make {
  background: linear-gradient(180deg, rgba(20, 27, 60, 0) 0%, var(--panel) 12%, var(--panel) 88%, rgba(20, 27, 60, 0) 100%);
}

.page-news .obs-head {
  max-width: 62ch;
}

.page-news .obs-head .eyebrow {
  margin-bottom: 10px;
}

.page-news .obs-head .t-section {
  margin: 0 0 14px;
}

.page-news .obs-head .lede {
  margin: 0;
}

.page-news .obs-head--split {
  max-width: none;
  display: grid;
  gap: 16px;
}

.page-news .obs-head__side {
  max-width: 46ch;
}

.page-news .obs-inline-link {
  margin: clamp(28px, 4vw, 44px) 0 0;
  color: var(--ink-2);
  font-size: 15px;
}

.page-news .obs-inline-link a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s var(--ease);
}

.page-news .obs-inline-link a:hover,
.page-news .obs-inline-link a:focus-visible {
  color: var(--gold);
}

/* ---------- 周更时间流 ---------- */
.page-news .stream-rail {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0 0 10px;
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .stream-rail::-webkit-scrollbar {
  height: 6px;
}

.page-news .stream-rail::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: var(--radius-pill);
}

.page-news .stream-node {
  position: relative;
  flex: 0 0 clamp(168px, 46vw, 216px);
  padding: 0 22px 0 0;
  scroll-snap-align: start;
}

.page-news .stream-node__week {
  display: block;
  height: 24px;
  line-height: 24px;
  font-size: 13px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
}

.page-news .stream-node::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
}

.page-news .stream-node::after {
  content: "";
  position: absolute;
  top: 26px;
  left: 0;
  width: 13px;
  height: 13px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--panel);
  border: 2px solid var(--nebula);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .stream-node__label {
  display: block;
  margin-top: 34px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .stream-node__pop {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  color: var(--ink-2);
  opacity: 0.72;
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), color 0.22s var(--ease);
}

.page-news .stream-node:hover::after,
.page-news .stream-node:focus-within::after {
  transform: scale(1.28);
  border-color: var(--ice);
}

.page-news .stream-node:hover .stream-node__pop,
.page-news .stream-node:focus-within .stream-node__pop {
  opacity: 1;
  transform: translateY(-3px);
  color: var(--ice);
}

.page-news .stream-node.is-current::after {
  border-color: var(--gold);
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(245, 197, 66, 0.16);
}

.page-news .stream-node.is-current .stream-node__week,
.page-news .stream-node.is-current .stream-node__label {
  color: var(--gold);
}

.page-news .obs-cover {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

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

/* ---------- 文章列表 ---------- */
.page-news .obs-figure {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-news .obs-figure--tight {
  margin-top: clamp(24px, 3vw, 34px);
}

.page-news .obs-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
  background: linear-gradient(150deg, var(--panel), rgba(108, 74, 182, 0.34));
}

.page-news .obs-figure figcaption {
  margin-top: 12px;
  color: var(--ink-2);
}

.page-news .obs-tabs {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-news .obs-tabs__list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
  scrollbar-width: none;
}

.page-news .obs-tabs__list::-webkit-scrollbar {
  display: none;
}

.page-news .obs-tab {
  flex: 0 0 auto;
  font: inherit;
  font-size: 14px;
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.22s var(--ease), background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .obs-tab:hover {
  color: var(--ice);
  border-color: var(--ice);
}

.page-news .obs-tab:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-news .obs-tab[aria-selected="true"] {
  color: var(--deep);
  font-weight: 700;
  border-color: transparent;
  background: linear-gradient(120deg, var(--gold) 0%, #FFE9A8 100%);
}

.page-news [data-tab-panel][hidden],
.page-news [data-tab-panel][aria-hidden="true"] {
  display: none;
}

.page-news [data-tab-panel]:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 6px;
}

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

.page-news .post {
  padding: 24px 0 26px;
  border-top: 1px solid var(--line);
}

.page-news .post:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .post__tag {
  display: inline-block;
  position: relative;
  padding-left: 15px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}

.page-news .post__tag::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 2px;
  background: var(--nebula);
}

.page-news .post__tag--league::before {
  background: var(--ice);
}

.page-news .post__tag--data::before {
  background: var(--gold);
}

.page-news .post__title {
  margin: 10px 0 8px;
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .post__excerpt {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .post__meta {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: var(--ink-2);
  opacity: 0.8;
}

/* ---------- 数据专题 ---------- */
.page-news .obs-chart {
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: clamp(18px, 3vw, 30px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(80% 90% at 14% 0%, rgba(108, 74, 182, 0.28), transparent 68%),
    var(--deep);
  box-sizing: border-box;
}

.page-news .chart {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .chart__grid line {
  stroke: var(--line);
  stroke-width: 1;
}

.page-news .chart__bars rect {
  fill: rgba(108, 74, 182, 0.32);
}

.page-news .chart__line-a {
  fill: none;
  stroke: var(--nebula);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-news .chart__line-b {
  fill: none;
  stroke: var(--ice);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 8 7;
}

.page-news .chart__dots-a circle {
  fill: var(--nebula);
  stroke: var(--deep);
  stroke-width: 2;
}

.page-news .chart__dots-b circle {
  fill: var(--ice);
  stroke: var(--deep);
  stroke-width: 2;
}

.page-news .chart__axis text {
  fill: var(--ink-2);
  font-size: 14px;
  font-family: var(--font-body);
}

.page-news .obs-chart figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-2);
}

.page-news .chart-legend {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-news .chart-legend .dot {
  width: 14px;
  height: 4px;
  border-radius: var(--radius-pill);
  display: inline-block;
}

.page-news .dot-a {
  background: var(--nebula);
}

.page-news .dot-b {
  background: repeating-linear-gradient(90deg, var(--ice) 0 5px, transparent 5px 9px);
}

.page-news .dot-bar {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: rgba(108, 74, 182, 0.5);
}

.page-news .obs-prose {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-news .obs-prose h3 {
  margin: 1.6em 0 0.5em;
  font-size: clamp(18px, 2.3vw, 22px);
  font-weight: 700;
  color: var(--ink);
}

.page-news .obs-prose h3:first-child {
  margin-top: 0;
}

/* ---------- 版本记录 ---------- */
.page-news .obs-section--log {
  background: var(--deep);
}

.page-news .log-layout {
  margin-top: clamp(28px, 4vw, 46px);
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .log-item {
  position: relative;
  padding: 20px 0 22px 22px;
  border-left: 1px solid var(--line);
}

.page-news .log-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 28px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--nebula);
  box-shadow: 0 0 0 4px rgba(108, 74, 182, 0.16);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-news .log-item:hover::before {
  transform: scale(1.25);
  background: var(--gold);
}

.page-news .log-item__ver {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-news .log-item__when {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  color: var(--ink-2);
}

.page-news .log-item__title {
  margin: 10px 0 6px;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .log-item__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .obs-figure--log {
  margin: 0;
  align-self: start;
}

/* ---------- 制作过程 ---------- */
.page-news .make-list {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .make-step {
  position: relative;
  padding: 22px 0 24px 66px;
  border-top: 1px solid var(--line);
}

.page-news .make-step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .make-step__no {
  position: absolute;
  left: 0;
  top: 22px;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  background: linear-gradient(160deg, var(--gold), rgba(108, 74, 182, 0.9));
  -webkit-background-clip: text;
  background-clip: text;
}

.page-news .make-step__title {
  margin: 0 0 6px;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 700;
  color: var(--ink);
}

.page-news .make-step__body {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 结尾行动区 ---------- */
.page-news .obs-section--cta {
  padding-block: clamp(48px, 7vw, 96px) clamp(64px, 9vw, 120px);
}

.page-news .obs-cta {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(28px, 4.6vw, 56px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(70% 110% at 92% 0%, rgba(245, 197, 66, 0.22), transparent 62%),
    radial-gradient(80% 120% at 6% 100%, rgba(108, 74, 182, 0.4), transparent 66%),
    var(--panel);
}

.page-news .obs-cta__text h2 {
  margin: 0 0 14px;
}

.page-news .obs-cta__text p {
  margin: 0;
  max-width: 58ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-news .obs-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-news .obs-head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(24px, 5vw, 64px);
  }

  .page-news .post-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 64px);
  }

  .page-news .post:nth-child(even) {
    margin-top: 46px;
  }

  .page-news .make-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4.5vw, 72px);
  }

  .page-news .make-step:nth-child(even) {
    margin-top: 34px;
  }

  .page-news .obs-cta {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news .obs-cta__actions {
    justify-content: flex-end;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-news .log-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-news .obs-figure--log {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-news .obs-hero__note {
    bottom: 12px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .stream-node::after,
  .page-news .stream-node__pop,
  .page-news .log-item::before,
  .page-news .obs-tab {
    transition: none;
  }
}
</style>