.page-news {
  --news-glow: 0 22px 48px -30px rgba(37, 224, 212, 0.55);
  --news-rule: rgba(127, 243, 236, 0.16);
  --news-rule-quiet: rgba(92, 110, 126, 0.26);
}

.page-news .shell {
  padding-inline: var(--gutter);
}

/* ---------- 页头叙事 ---------- */
.page-news .news-masthead {
  padding-block: clamp(1.4rem, 3vw, 2.6rem) clamp(1.2rem, 3vw, 2.2rem);
}

.page-news .news-masthead__shell {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  align-items: end;
}

.page-news .news-masthead .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.9rem;
}

.page-news .news-masthead h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ceramic);
  margin: 0 0 1rem;
  max-width: 18ch;
}

.page-news .news-masthead h1 .hl {
  background: linear-gradient(100deg, var(--cyan) 0%, var(--cyan-soft) 52%, var(--amber) 112%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-news .news-masthead .lede {
  color: rgba(237, 243, 247, 0.78);
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.8;
  max-width: 60ch;
  margin: 0;
}

.page-news .news-masthead__aside {
  border-left: 2px solid var(--cyan);
  padding-left: 1.1rem;
}

.page-news .news-masthead__aside-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 0.75rem;
}

.page-news .news-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  font-size: 0.95rem;
  color: rgba(237, 243, 247, 0.82);
}

.page-news .news-facts__num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--ceramic);
  margin-right: 0.5rem;
}

.page-news .news-masthead__aside-note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 通栏氛围图 ---------- */
.page-news .news-banner {
  margin: clamp(0.6rem, 2vw, 1.4rem) 0 clamp(1.6rem, 4vw, 3rem);
  border: 1px solid var(--news-rule-quiet);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  background: var(--panel);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 系列目录 ---------- */
.page-news .news-directory {
  padding-block: clamp(1.4rem, 3vw, 2.4rem) clamp(1.8rem, 4vw, 3rem);
  border-top: 1px solid var(--news-rule-quiet);
}

.page-news .news-directory .section-head {
  margin-bottom: clamp(1rem, 2.4vw, 1.6rem);
}

.page-news .news-directory__link {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 0.35rem 0.9rem;
  text-decoration: none;
  width: 100%;
}

.page-news .news-directory__link .index-item__meta {
  grid-column: 2 / -1;
}

.page-news .news-directory__link:hover .index-item__title,
.page-news .news-directory__link:focus-visible .index-item__title {
  color: var(--cyan-soft);
}

/* ---------- 画布：侧边系列栏 + 条目流 ---------- */
.page-news .news-canvas {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  padding-block: clamp(1rem, 2.4vw, 1.6rem) clamp(2.4rem, 6vw, 4.5rem);
  border-top: 1px solid var(--news-rule-quiet);
}

.page-news .news-rail__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--slate);
  margin: 0 0 0.7rem;
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.page-news .news-rail__list > li {
  flex: 0 0 auto;
}

.page-news .news-rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--news-rule);
  color: rgba(237, 243, 247, 0.82);
  text-decoration: none;
  font-size: 0.86rem;
  white-space: nowrap;
  transition: border-color var(--speed) var(--ease), color var(--speed) var(--ease), transform var(--speed) var(--ease);
}

.page-news .news-rail__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  border-color: var(--cyan);
  color: var(--ceramic);
  transform: translateX(3px);
}

/* ---------- 系列区块 ---------- */
.page-news .news-series {
  padding-block: clamp(1.5rem, 3vw, 2.3rem);
  border-top: 1px solid var(--news-rule-quiet);
  scroll-margin-top: 6rem;
}

.page-news .news-series:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .news-series__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem 1rem;
  margin-bottom: clamp(1rem, 2.4vw, 1.7rem);
}

.page-news .news-series__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 0.55rem;
}

.page-news .news-series__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2.05rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ceramic);
  margin: 0 0 0.5rem;
}

.page-news .news-series__note {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(237, 243, 247, 0.66);
  max-width: 62ch;
}

/* ---------- 主条目 ---------- */
.page-news .news-lead {
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  padding: clamp(1rem, 2.4vw, 1.5rem) 0 clamp(1.2rem, 2.6vw, 1.8rem);
  margin-bottom: 0.4rem;
}

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

.page-news .news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 0.8rem;
}

.page-news .news-lead__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.28rem, 3vw, 1.85rem);
  line-height: 1.3;
  color: var(--ceramic);
  margin: 0 0 0.5rem;
}

.page-news .news-lead__meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--amber);
  margin: 0 0 0.9rem;
}

.page-news .news-lead__copy p {
  margin: 0 0 0.85rem;
  font-size: 0.96rem;
  line-height: 1.82;
  color: rgba(237, 243, 247, 0.78);
}

.page-news .news-lead__link {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 224, 212, 0.4);
  padding-bottom: 0.15rem;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-news .news-lead__link:hover,
.page-news .news-lead__link:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

.page-news .news-lead__media {
  margin: 0;
  border: 1px solid var(--news-rule);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  background: var(--panel);
}

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

/* ---------- 折叠条目流 ---------- */
.page-news .news-list {
  border-bottom: 1px solid var(--news-rule-quiet);
}

.page-news .news-item {
  border-top: 1px solid var(--news-rule-quiet);
}

.page-news .news-item__trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0.3rem 0.9rem;
  padding: clamp(0.85rem, 2vw, 1.15rem) 0;
  background: none;
  border: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  position: relative;
}

.page-news .news-item__trigger::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--slate);
  transition: background var(--speed) var(--ease), transform var(--speed) var(--ease);
}

.page-news .news-item__trigger:hover::after,
.page-news .news-item__trigger:focus-visible::after,
.page-news .news-item__trigger[aria-expanded="true"]::after {
  background: var(--cyan);
  transform: scaleX(1.6);
}

.page-news .news-item__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-news .news-item__title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1rem, 2.1vw, 1.12rem);
  line-height: 1.5;
  color: var(--ceramic);
  transition: color var(--speed) var(--ease), transform var(--speed) var(--ease);
}

.page-news .news-item__trigger:hover .news-item__title,
.page-news .news-item__trigger:focus-visible .news-item__title {
  color: var(--cyan-soft);
  transform: translateX(0.5rem);
}

.page-news .news-item__meta {
  grid-column: 2 / -1;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--slate);
  padding-right: 1.6rem;
}

.page-news .news-item__panel {
  padding: 0 1.6rem clamp(0.9rem, 2vw, 1.3rem) 0;
}

.page-news .news-item__panel p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: rgba(237, 243, 247, 0.72);
  max-width: 68ch;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  padding-block: clamp(2rem, 5vw, 3.4rem) clamp(2.6rem, 6vw, 4.5rem);
  background: linear-gradient(180deg, rgba(15, 33, 51, 0) 0%, rgba(15, 33, 51, 0.72) 26%, rgba(15, 33, 51, 0.72) 100%);
  border-top: 1px solid var(--news-rule);
}

.page-news .news-cadence .section-head {
  margin-bottom: clamp(1.1rem, 2.6vw, 1.8rem);
}

.page-news .news-cadence__grid {
  gap: clamp(0.9rem, 2vw, 1.4rem);
}

.page-news .news-cadence__cell {
  padding: clamp(1.1rem, 2.4vw, 1.6rem);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-news .news-cadence__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0;
}

.page-news .news-cadence__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.2vw, 1.16rem);
  line-height: 1.42;
  color: var(--ceramic);
  margin: 0;
}

.page-news .news-cadence__cell p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.82;
  color: rgba(237, 243, 247, 0.72);
}

.page-news .news-cadence__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 0.9rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 224, 212, 0.4);
  padding-bottom: 0.15rem;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-news .news-cadence__link:hover,
.page-news .news-cadence__link:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-news .news-masthead__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(1.6rem, 5vw, 4rem);
  }

  .page-news .news-lead {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-news .news-canvas {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-news .news-rail__list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.1rem;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-news .news-rail__list > li {
    flex: 1 1 auto;
  }

  .page-news .news-rail__link {
    border: 0;
    border-left: 2px solid var(--news-rule-quiet);
    padding: 0.6rem 0.9rem;
    white-space: normal;
    line-height: 1.4;
  }

  .page-news .news-rail__link:hover,
  .page-news .news-rail__link:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(37, 224, 212, 0.06);
    transform: translateX(2px);
  }

  .page-news .news-item__trigger {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.4rem 1.2rem;
  }

  .page-news .news-item__meta {
    grid-column: 3 / 4;
    padding-right: 1.6rem;
  }
}

@media (min-width: 1280px) {
  .page-news .news-lead__title {
    font-size: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-rail__link,
  .page-news .news-item__title,
  .page-news .news-item__trigger::after,
  .page-news .news-lead__link,
  .page-news .news-cadence__link {
    transition: none;
  }

  .page-news .news-item__trigger:hover .news-item__title,
  .page-news .news-item__trigger:focus-visible .news-item__title,
  .page-news .news-rail__link:hover,
  .page-news .news-rail__link:focus-visible {
    transform: none;
  }
}