.page-news {
  --news-gap: clamp(20px, 3vw, 38px);
  --news-cut: 18px;
  overflow-x: clip;
  background: var(--ink);
  color: var(--paper);
}

.page-news .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 14px;
}

.page-news .lede {
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.75;
  color: rgba(245, 241, 232, .78);
  max-width: 46ch;
  margin: 0 0 26px;
}

.page-news .section-title {
  font-size: clamp(22px, 3.1vw, 34px);
  font-weight: 500;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-news .muted {
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
  margin: 0;
  max-width: 60ch;
}

.page-news .breadcrumbs {
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 82px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(115% 85% at 92% 0%, rgba(27, 16, 53, .85), transparent 58%),
    radial-gradient(85% 70% at 0% 100%, rgba(14, 26, 43, .9), transparent 62%),
    var(--ink);
}

.page-news .news-hero__grid {
  display: grid;
  gap: var(--news-gap);
  align-items: center;
}

.page-news .news-hero h1 {
  font-size: clamp(28px, 6.2vw, 58px);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-news .news-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-gold);
  background: linear-gradient(150deg, rgba(27, 16, 53, .92), rgba(11, 11, 16, .96));
  padding: 0;
}

.page-news .news-hero__visual::after,
.page-news .news-note::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: var(--news-cut);
  height: var(--news-cut);
  background: var(--ink);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

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

.page-news .news-hero__visual img {
  aspect-ratio: 2 / 1;
  height: auto;
  opacity: .92;
}

.page-news .media-frame__caption {
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .06em;
  color: var(--slate);
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 时间线区 ---------- */

.page-news .news-log {
  padding: clamp(44px, 6vw, 86px) 0;
  background: linear-gradient(180deg, rgba(14, 26, 43, .5), transparent 42%), var(--ink);
}

.page-news .news-log__intro {
  max-width: 62ch;
  margin-bottom: clamp(26px, 3.4vw, 46px);
}

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

.page-news .news-stream {
  min-width: 0;
}

/* 阶段刻度 */

.page-news .news-scale {
  margin-bottom: 4px;
}

.page-news .news-scale__title {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 12px;
}

.page-news .news-scale__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-scale__list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-scale__ver {
  font-size: 15px;
  letter-spacing: .05em;
  color: var(--gold);
}

.page-news .news-scale__when {
  font-size: 12px;
  color: var(--slate);
}

/* 筛选 */

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-filter__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-filter__btn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--slate);
  font: inherit;
  font-size: 13px;
  padding: 8px 15px;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-news .news-filter__btn:hover {
  color: var(--paper);
  border-color: var(--line-gold);
}

.page-news .news-filter__btn.is-active,
.page-news .news-filter__btn[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink);
  font-weight: 600;
}

.page-news .news-filter__count {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
  margin: 0;
}

/* 条目流 */

.page-news .news-feed {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 4px 0 0 34px;
}

.page-news .news-feed::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 34px;
  width: 1px;
  background: linear-gradient(180deg,
    var(--gold) 0%,
    rgba(212, 162, 76, .35) 38%,
    var(--line) 76%,
    transparent 100%);
}

.page-news .news-entry {
  position: relative;
  padding-bottom: 34px;
}

.page-news .news-entry::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 7px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  background: var(--graphite);
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: background-color .35s var(--ease), box-shadow .35s var(--ease);
}

.page-news .news-entry:hover::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 162, 76, .14);
}

.page-news .news-entry__body {
  min-width: 0;
}

.page-news .news-entry--feature .news-entry__body {
  position: relative;
  padding: 20px;
  background: linear-gradient(152deg, rgba(27, 16, 53, .55), rgba(11, 11, 16, .5));
  border: 1px solid var(--line);
}

.page-news .news-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .news-entry__when {
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate);
}

.page-news .news-entry__title {
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -.005em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-news .news-entry__text {
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
  color: rgba(245, 241, 232, .72);
  max-width: 62ch;
}

.page-news .news-entry__figure {
  margin: 16px 0 0;
  max-width: 520px;
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-news .news-entry__figure img {
  aspect-ratio: 3 / 2;
  height: auto;
}

/* 右侧便签 */

.page-news .news-notes {
  min-width: 0;
}

.page-news .news-note {
  position: relative;
  padding: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(27, 16, 53, .72), rgba(11, 11, 16, .9));
}

.page-news .news-note__label {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 6px;
}

.page-news .news-note__links {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.page-news .news-note__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 0;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color .25s var(--ease);
}

.page-news .news-note__links li:last-child a {
  border-bottom: 0;
}

.page-news .news-note__links a::after {
  content: "\2192";
  font-family: var(--font-mono);
  color: var(--gold);
  transition: transform .25s var(--ease);
}

.page-news .news-note__links a:hover {
  color: var(--gold-soft);
}

.page-news .news-note__links a:hover::after {
  transform: translateX(4px);
}

/* ---------- 更新节奏 ---------- */

.page-news .news-rhythm {
  padding: clamp(44px, 6vw, 86px) 0 clamp(44px, 5vw, 72px);
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(78% 62% at 12% 0%, rgba(14, 26, 43, .85), transparent 62%),
    var(--ink);
}

.page-news .news-rhythm__grid {
  display: grid;
  gap: var(--news-gap);
  align-items: start;
}

.page-news .news-rhythm__lead p {
  font-size: 16px;
  line-height: 1.78;
  color: rgba(245, 241, 232, .74);
  margin: 0;
  max-width: 54ch;
}

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

.page-news .news-rhythm__stats li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 15px 16px;
  background: var(--ink);
}

.page-news .news-rhythm__num {
  flex: none;
  min-width: 78px;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--gold);
}

.page-news .news-rhythm__desc {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 241, 232, .7);
}

.page-news .news-rhythm__steps {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-rhythm__steps li {
  display: flex;
  gap: 14px;
  padding: 20px 16px;
  background: var(--ink);
}

.page-news .news-rhythm__step-idx {
  flex: none;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--coral);
}

.page-news .news-rhythm__steps p {
  font-size: 15px;
  line-height: 1.72;
  margin: 0;
  color: rgba(245, 241, 232, .78);
}

.page-news .news-rhythm__hint {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--celadon);
  background: rgba(79, 209, 178, .07);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 241, 232, .86);
}

.page-news .news-rhythm__hint a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-rhythm__hint a:hover {
  color: var(--coral);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news .news-rhythm__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .news-rhythm__steps li {
    padding: 22px 18px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(28px, 4vw, 60px);
  }
  .page-news .news-rhythm__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1080px) {
  .page-news .news-layout {
    grid-template-columns: 150px minmax(0, 1fr) 232px;
    gap: clamp(20px, 2.6vw, 42px);
    align-items: start;
  }

  .page-news .news-scale {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    margin-bottom: 0;
    padding-left: 17px;
    border-left: 1px solid var(--line);
  }

  .page-news .news-scale__list {
    flex-direction: column;
    gap: 26px;
  }

  .page-news .news-scale__list li {
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
    position: relative;
  }

  .page-news .news-scale__list li::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 8px;
    width: 9px;
    height: 9px;
    box-sizing: border-box;
    background: var(--graphite);
    border: 1px solid var(--gold);
    transform: rotate(45deg);
  }

  .page-news .news-notes {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

@media (min-width: 1320px) {
  .page-news .news-layout {
    grid-template-columns: 168px minmax(0, 1fr) 248px;
  }
  .page-news .news-note {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-filter__btn,
  .page-news .news-entry::before,
  .page-news .news-note__links a,
  .page-news .news-note__links a::after {
    transition: none;
  }
  .page-news .news-note__links a:hover::after {
    transform: none;
  }
}