.page-news {
  --news-gap: clamp(56px, 8vw, 128px);
  --news-lead: clamp(17px, 1.4vw, 19px);
  position: relative;
  background: var(--abyss);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(159, 176, 196, 0.055) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(90deg, rgba(159, 176, 196, 0.045) 0 1px, transparent 1px 92px);
}

.page-news > * {
  position: relative;
  z-index: 1;
}

.page-news .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(18px, 4vw, 34px);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mute);
}

.page-news .crumb a {
  color: var(--mute);
  text-decoration: none;
  transition: color 0.22s var(--ease);
}

.page-news .crumb a:hover,
.page-news .crumb a:focus-visible {
  color: var(--neon);
}

.page-news .crumb [aria-current="page"] {
  color: var(--gold);
}

.page-news .crumb-sep {
  color: var(--line);
}

/* ---------- 栏目头 ---------- */
.page-news .news-masthead {
  padding: clamp(24px, 4vw, 48px) 0 clamp(40px, 6vw, 88px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(58% 76% at 8% 0%, rgba(53, 214, 208, 0.13), transparent 70%),
    radial-gradient(52% 68% at 96% 24%, rgba(201, 162, 75, 0.13), transparent 72%);
}

.page-news .masthead-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-news .masthead-index {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-news .masthead-issue {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-news .masthead-note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

.page-news .masthead-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 20px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .masthead-meta > div {
  background: var(--abyss);
  padding: 12px 14px;
}

.page-news .masthead-meta dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mute);
}

.page-news .masthead-meta dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  color: var(--paper);
}

.page-news .rubric-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rubric-chip {
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-news .rubric-chip.is-current {
  color: var(--abyss);
  background: var(--neon);
  border-color: var(--neon);
}

.page-news h1 {
  margin: clamp(16px, 2.6vw, 28px) 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(42px, 8.6vw, 108px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .h1-tail {
  display: block;
  margin-top: 10px;
  font-size: clamp(16px, 2vw, 24px);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-news .masthead-lead {
  max-width: 34em;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: var(--news-lead);
  line-height: 1.9;
  color: var(--paper);
}

/* ---------- 本期观察 ---------- */
.page-news .feature {
  padding-top: var(--news-gap);
}

.page-news .feature-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .feature-visual {
  position: relative;
  margin: 0;
  background: var(--deck);
  clip-path: var(--cut-path);
}

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

.page-news .feature-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 21, 38, 0.2) 0%, rgba(10, 21, 38, 0.6) 100%);
  box-shadow: inset 0 0 0 1px rgba(201, 162, 75, 0.45);
}

.page-news .feature-body p {
  max-width: 32em;
  margin: 16px 0 0;
  font-size: var(--news-lead);
  line-height: 1.9;
  color: var(--paper);
}

.page-news .feature-body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 208, 0.45);
}

.page-news .feature-body a:hover {
  color: var(--gold-lit);
  border-bottom-color: var(--gold-lit);
}

.page-news .feature-facts {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .feature-facts > div {
  background: var(--deck);
  padding: 14px 16px;
}

.page-news .feature-facts dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mute);
}

.page-news .feature-facts dd {
  margin: 8px 0 0;
  font-size: 16px;
  color: var(--paper);
}

.page-news .feature-facts dd.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--gold);
}

/* ---------- 更新列表 ---------- */
.page-news .stream {
  padding-top: var(--news-gap);
}

.page-news .stream-head {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-news .stream-lead,
.page-news .series-lead {
  max-width: 34em;
  margin: 16px 0 0;
  font-size: var(--news-lead);
  line-height: 1.9;
  color: var(--mute);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: start;
}

.page-news .filter-btn {
  appearance: none;
  padding: 8px 17px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--mute);
  cursor: pointer;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-news .filter-btn:hover,
.page-news .filter-btn:focus-visible {
  color: var(--paper);
  border-color: var(--gold);
}

.page-news .filter-btn.is-active,
.page-news .filter-btn[aria-pressed="true"] {
  color: var(--abyss);
  background: var(--neon);
  border-color: var(--neon);
}

.page-news .obs-stream {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  align-items: start;
}

.page-news .obs-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--deck);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
  transition: border-color 0.22s var(--ease), transform 0.34s var(--ease);
}

.page-news .obs-item::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 52px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-lit));
  opacity: 0;
  transition: opacity 0.22s var(--ease);
}

.page-news .obs-item:hover,
.page-news .obs-item:focus-within {
  border-color: var(--neon);
  transform: translateY(-4px);
}

.page-news .obs-item:hover::before,
.page-news .obs-item:focus-within::before {
  opacity: 1;
}

.page-news .obs-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-news .obs-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .obs-tag {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.page-news .obs-item[data-cat="01"] .obs-tag {
  color: var(--gold);
  border-color: rgba(201, 162, 75, 0.5);
}

.page-news .obs-item[data-cat="02"] .obs-tag {
  color: var(--neon);
  border-color: rgba(53, 214, 208, 0.45);
}

.page-news .obs-item[data-cat="03"] .obs-tag {
  color: var(--paper);
  border-color: rgba(237, 231, 218, 0.3);
}

.page-news .obs-item[data-cat="04"] .obs-tag {
  color: var(--mute);
  border-color: rgba(159, 176, 196, 0.35);
}

.page-news .obs-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.5;
  color: var(--paper);
}

.page-news .obs-when {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-news .obs-more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed rgba(30, 58, 95, 0.9);
}

.page-news .obs-more summary {
  list-style: none;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
  transition: color 0.22s var(--ease);
}

.page-news .obs-more summary::-webkit-details-marker {
  display: none;
}

.page-news .obs-more summary::after {
  content: " ＋";
}

.page-news .obs-more[open] summary::after {
  content: " －";
}

.page-news .obs-more summary:hover {
  color: var(--gold-lit);
}

.page-news .obs-more p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .obs-visual {
  margin: 0;
  background: var(--deck);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
  overflow: hidden;
}

.page-news .obs-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-news .obs-visual-cap {
  margin: 0;
  padding: 14px 16px 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mute);
  border-top: 1px solid var(--line);
}

.page-news .stream-empty {
  margin: 28px 0 0;
  font-size: 15px;
  color: var(--mute);
}

.page-news .stream-empty[hidden] {
  display: none;
}

/* ---------- 每月区间变化记录 ---------- */
.page-news .interval {
  padding-top: var(--news-gap);
}

.page-news .interval-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-news .interval-head p {
  max-width: 32em;
  margin: 16px 0 0;
  font-size: var(--news-lead);
  line-height: 1.9;
  color: var(--mute);
}

.page-news .interval-visual {
  margin: clamp(24px, 3vw, 36px) 0 0;
  background: var(--deck);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
}

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

.page-news .interval-visual figcaption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mute);
}

.page-news .interval-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--deck);
}

.page-news .interval-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-news .interval-table caption {
  padding: 16px 16px 12px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-news .interval-table th,
.page-news .interval-table td {
  padding: 12px 14px;
  text-align: left;
  border-top: 1px solid rgba(30, 58, 95, 0.9);
  white-space: nowrap;
}

.page-news .interval-table thead th {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--mute);
  border-top: none;
}

.page-news .interval-table td {
  color: var(--paper);
}

.page-news .interval-table td.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

.page-news .dir {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--paper);
}

.page-news .dir::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--cinnabar);
}

.page-news .dir--flat::before {
  background: var(--mute);
}

/* ---------- 专题系列 ---------- */
.page-news .series {
  padding-top: var(--news-gap);
}

.page-news .series-grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-news .series-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  background: var(--deck);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
}

.page-news .series-ep {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .series-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 1.8vw, 24px);
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .series-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .series-next {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed rgba(30, 58, 95, 0.9);
  color: var(--neon) !important;
  font-size: 13px !important;
  letter-spacing: 0.04em;
}

/* ---------- 怎么持续跟进 ---------- */
.page-news .follow {
  padding-top: var(--news-gap);
}

.page-news .follow-grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.page-news .follow-head p {
  max-width: 30em;
  margin: 16px 0 0;
  font-size: var(--news-lead);
  line-height: 1.9;
  color: var(--mute);
}

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

.page-news .follow-list li {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(30, 58, 95, 0.85);
}

.page-news .follow-list h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--paper);
}

.page-news .follow-cadence {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .follow-list p:not(.follow-cadence) {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .follow-foot {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-news .follow-foot p {
  max-width: 46em;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.9;
  color: var(--paper);
}

.page-news .follow-foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 208, 0.45);
}

.page-news .follow-foot a:hover,
.page-news .follow-foot a:focus-visible {
  color: var(--gold-lit);
  border-bottom-color: var(--gold-lit);
}

/* ---------- 页尾专题带 ---------- */
.page-news .topic-band {
  padding-top: var(--news-gap);
}

.page-news .band-scroll {
  display: flex;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
  padding: 4px var(--gutter) 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-news .band-scroll::-webkit-scrollbar {
  height: 6px;
}

.page-news .band-scroll::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-news .band-card {
  flex: 0 0 clamp(220px, 62vw, 300px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  scroll-snap-align: start;
  text-decoration: none;
  background: var(--deck);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
  transition: border-color 0.22s var(--ease), transform 0.34s var(--ease);
}

.page-news .band-card:hover,
.page-news .band-card:focus-visible {
  border-color: var(--neon);
  transform: translateY(-4px);
}

.page-news .band-idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-news .band-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  color: var(--paper);
}

.page-news .band-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .feature-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-news .obs-item:nth-child(2n) {
    margin-top: 46px;
  }

  .page-news .follow-list li {
    grid-template-columns: 128px 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-news .follow-list li h3 {
    grid-column: 1;
  }

  .page-news .follow-cadence {
    grid-column: 2;
  }

  .page-news .follow-list li p:not(.follow-cadence) {
    grid-column: 3;
  }
}

@media (min-width: 960px) {
  .page-news .masthead-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    align-items: start;
  }

  .page-news .feature-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-news .feature-visual {
    margin-left: calc(var(--gutter) * -0.9);
  }

  .page-news .stream-head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-news .stream-head .filter-bar {
    justify-content: flex-end;
    max-width: 420px;
  }

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

  .page-news .series-card:nth-child(2) {
    margin-top: 44px;
  }

  .page-news .series-card:nth-child(3) {
    margin-top: 18px;
  }

  .page-news .follow-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

@media (min-width: 1080px) {
  .page-news .obs-stream {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(22px, 2.4vw, 34px);
  }

  .page-news .obs-item:nth-child(2n) {
    margin-top: 0;
  }

  .page-news .obs-item:nth-child(3n + 2) {
    margin-top: 50px;
  }

  .page-news .obs-item:nth-child(3n) {
    margin-top: 100px;
  }

  .page-news .interval-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-item,
  .page-news .band-card,
  .page-news .filter-btn,
  .page-news .obs-item::before {
    transition: none;
  }

  .page-news .obs-item:hover,
  .page-news .band-card:hover,
  .page-news .obs-item:focus-within,
  .page-news .band-card:focus-visible {
    transform: none;
  }
}