.page-news {
  --news-line: rgba(20, 17, 15, 0.16);
  --news-line-soft: rgba(20, 17, 15, 0.08);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(26px, 4.6vw, 56px) 0 clamp(34px, 6vw, 76px);
  background:
    radial-gradient(circle at 88% 6%, rgba(255, 122, 47, 0.16), transparent 46%),
    radial-gradient(circle at 6% 82%, rgba(31, 99, 255, 0.08), transparent 42%);
}

.page-news .news-hero__eyebrow {
  margin-top: clamp(18px, 3vw, 34px);
  color: var(--sage);
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  max-width: 18ch;
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-news .news-hero__lead {
  margin-top: 22px;
  max-width: 60ch;
  opacity: 0.86;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-news .news-hero__meta {
  display: grid;
  gap: 1px;
  margin: 44px 0 0;
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
  background: var(--news-line-soft);
}

.page-news .news-hero__metaitem {
  padding: 16px 0;
  background: var(--paper);
}

.page-news .news-hero__metaitem dt {
  color: var(--sage);
}

.page-news .news-hero__metaval {
  margin: 6px 0 0;
  font-weight: 500;
}

/* ---------- 区块抬头 ---------- */
.page-news .news-head {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-news .news-head__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-news .news-head__title {
  margin: 10px 0 0;
  max-width: 24ch;
  font-weight: 900;
  line-height: 1.15;
}

.page-news .news-head__note {
  margin: 12px 0 0;
  max-width: 56ch;
  color: var(--sage);
  font-size: 15px;
}

/* ---------- 01 摘要 ---------- */
.page-news .news-brief__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--news-line-soft);
  border: 1px solid var(--news-line-soft);
}

.page-news .news-brief__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 20px 18px;
  background: var(--paper);
  transition: background var(--dur) var(--ease);
}

.page-news .news-brief__item:hover {
  background: var(--mint);
}

.page-news .news-brief__idx {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--coral);
  padding-top: 3px;
}

.page-news .news-brief__text {
  margin: 0;
  max-width: 68ch;
}

/* ---------- 02 时间轴 ---------- */
.page-news .news-tl-wrap {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-news .news-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
}

.page-news .news-tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange) 0%, var(--sand) 22%, var(--sand) 78%, rgba(228, 192, 138, 0.15) 100%);
}

.page-news .news-item {
  position: relative;
  padding: 18px 0;
  border-top: 1px solid var(--news-line-soft);
  transition: background var(--dur) var(--ease);
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 25px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--sand);
}

.page-news .news-item:hover {
  background: var(--mint);
}

.page-news .news-item:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  background: var(--mint);
}

.page-news .news-item__when {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--deep);
  font-weight: 500;
}

.page-news .news-item__body {
  margin-top: 6px;
}

.page-news .news-item__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-news .news-item__desc {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--sage);
  max-width: 62ch;
}

.page-news .news-item__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.page-news .news-item__ver {
  font-size: 12px;
  letter-spacing: 0.04em;
  opacity: 0.72;
}

/* 状态标签色彩体系 */
.page-news .ntag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.page-news .ntag--list {
  background: rgba(255, 122, 47, 0.14);
  color: #9A3D00;
}

.page-news .ntag--beta {
  background: rgba(242, 69, 92, 0.14);
  color: var(--coral-deep);
}

.page-news .ntag--live {
  background: rgba(15, 61, 51, 0.12);
  color: var(--deep);
}

.page-news .ntag--doc {
  background: rgba(92, 107, 99, 0.14);
  color: #3E4A44;
}

.page-news .ntag--eco {
  background: rgba(31, 99, 255, 0.12);
  color: #1444B8;
}

/* 时间轴侧栏 */
.page-news .news-tl-aside {
  border-top: 1px solid var(--news-line);
  padding-top: 22px;
}

.page-news .news-tl-aside__note {
  margin: 18px 0 0;
}

.page-news .news-tl-aside__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 12px 0 0;
}

/* ---------- 03 分类 ---------- */
.page-news .news-cats__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .nfilter {
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.page-news .nfilter--list {
  border-color: rgba(255, 122, 47, 0.5);
  color: #9A3D00;
  background: rgba(255, 122, 47, 0.08);
}

.page-news .nfilter--beta {
  border-color: rgba(242, 69, 92, 0.45);
  color: var(--coral-deep);
  background: rgba(242, 69, 92, 0.07);
}

.page-news .nfilter--iter {
  border-color: rgba(15, 61, 51, 0.35);
  color: var(--deep);
  background: rgba(15, 61, 51, 0.06);
}

.page-news .nfilter--doc {
  border-color: rgba(92, 107, 99, 0.4);
  color: #3E4A44;
  background: rgba(92, 107, 99, 0.07);
}

.page-news .nfilter--eco {
  border-color: rgba(31, 99, 255, 0.35);
  color: #1444B8;
  background: rgba(31, 99, 255, 0.06);
}

.page-news .news-cats__list {
  margin: 0;
  padding: 0;
}

.page-news .news-cats__row {
  display: grid;
  gap: 10px;
  padding: 24px 0 24px 18px;
  border-bottom: 1px solid var(--news-line-soft);
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .news-cats__row:hover {
  background: rgba(232, 239, 234, 0.55);
}

.page-news .news-cats__row--list { border-left-color: var(--orange); }
.page-news .news-cats__row--beta { border-left-color: var(--coral); }
.page-news .news-cats__row--iter { border-left-color: var(--deep); }
.page-news .news-cats__row--doc  { border-left-color: var(--sage); }
.page-news .news-cats__row--eco  { border-left-color: var(--blue); }

.page-news .news-cats__term {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news .news-cats__freq {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sage);
}

.page-news .news-cats__def {
  margin: 0;
  max-width: 68ch;
  opacity: 0.86;
}

/* ---------- 04 节奏 ---------- */
.page-news .news-rhythm .news-rhythm__figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

.page-news .news-rhythm__body {
  max-width: 720px;
}

.page-news .news-rhythm__body p {
  margin: 0 0 18px;
}

.page-news .news-rhythm__flow {
  margin: clamp(28px, 4vw, 48px) 0 0;
  max-width: 720px;
}

/* ---------- 05 归档与订阅 ---------- */
.page-news .news-arch__list {
  border-top: 1px solid var(--news-line);
}

.page-news .news-arch {
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .news-arch__summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

.page-news .news-arch__summary::-webkit-details-marker {
  display: none;
}

.page-news .news-arch__summary::after {
  content: "＋";
  font-weight: 400;
  color: var(--sage);
  margin-left: 6px;
}

.page-news .news-arch[open] .news-arch__summary::after {
  content: "－";
}

.page-news .news-arch__q {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--deep);
}

.page-news .news-arch__count {
  font-size: 13px;
  font-weight: 400;
  color: var(--sage);
  margin-left: auto;
}

.page-news .news-arch__items {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-arch__items li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  font-size: 15px;
  line-height: 1.65;
  opacity: 0.88;
}

.page-news .news-arch__items li .mono {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--sage);
  padding-top: 3px;
}

.page-news .news-sub__panel {
  position: relative;
  margin-top: clamp(36px, 5vw, 62px);
  padding: clamp(26px, 4vw, 48px) clamp(20px, 3.4vw, 44px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 122, 47, 0.22), transparent 52%),
    radial-gradient(circle at 88% 88%, rgba(242, 69, 92, 0.16), transparent 48%),
    var(--warm-soft);
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  overflow: hidden;
}

.page-news .news-sub__figure {
  margin: 0;
}

.page-news .news-sub__title {
  margin: 0 0 14px;
  font-weight: 900;
}

.page-news .news-sub__body p {
  max-width: 62ch;
}

.page-news .news-sub__copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
}

.page-news .news-sub__addr {
  font-size: 15px;
  letter-spacing: 0.02em;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  background: rgba(250, 245, 239, 0.82);
  border: 1px solid rgba(20, 17, 15, 0.1);
  word-break: break-all;
}

.page-news .news-sub__status {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--deep);
  min-height: 1.2em;
}

.page-news .news-sub__more {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 22px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-news .news-hero__metaitem {
    padding: 20px 24px 20px 0;
  }

  .page-news .news-hero__metaitem + .news-hero__metaitem {
    padding-left: 24px;
    border-left: 1px solid var(--news-line-soft);
  }

  .page-news .news-tl-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-news .news-tl-aside {
    position: sticky;
    top: 96px;
    border-top: none;
    padding-top: 0;
  }

  .page-news .news-item {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr) auto;
    column-gap: 26px;
    align-items: start;
    padding: 20px 14px 20px 24px;
    margin-left: -14px;
  }

  .page-news .news-item::before {
    left: -12px;
  }

  .page-news .news-item__body {
    margin-top: 0;
  }

  .page-news .news-item__tags {
    margin-top: 2px;
    justify-content: flex-end;
  }

  .page-news .news-cats__row {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }

  .page-news .news-sub__panel {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-news .news-hero__title {
    font-size: clamp(3.2rem, 5.4vw, 5rem);
  }

  .page-news .news-cats__row {
    grid-template-columns: 300px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-brief__item,
  .page-news .news-cats__row {
    transition: none;
  }
}