.page-news {
  --news-gap: clamp(20px, 3.2vw, 44px);
  --news-thumb-w: 168px;
  position: relative;
  background: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(20px, 3vw, 34px);
  font-size: 13px;
}
.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mute);
}
.page-news .breadcrumb li {
  display: flex;
  align-items: center;
  color: var(--mute);
}
.page-news .breadcrumb li::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}
.page-news .breadcrumb li:last-child::after {
  content: "";
}
.page-news .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--cyan);
}

/* ---------- 刊头 ---------- */
.page-news .news-masthead {
  position: relative;
  padding-bottom: 0;
}
.page-news .news-masthead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding: clamp(26px, 4vw, 48px) 0 0;
}
.page-news .news-masthead__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-news .news-masthead__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-news .news-masthead__intro {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mute);
}
.page-news .news-masthead__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
}
.page-news .news-masthead__stats > div {
  padding: 16px 18px;
  background: var(--layer);
}
.page-news .news-masthead__stats dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}
.page-news .news-masthead__stats dd {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  color: var(--paper);
}
.page-news .news-masthead__figure {
  margin: var(--news-gap) 0 0;
}
.page-news .news-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- 区块通用 ---------- */
.page-news .news-feature,
.page-news .news-index,
.page-news .news-archive,
.page-news .news-submit {
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--line);
}
.page-news .news-archive {
  background: var(--canvas);
}
.page-news .news-submit {
  background: linear-gradient(160deg, var(--canvas) 0%, var(--ink) 100%);
}
.page-news .section-head {
  margin-bottom: 4px;
}

/* ---------- 本期重点 ---------- */
.page-news .news-feature__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 26px;
}
.page-news .news-feature__main {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-news .news-feature__main .tag {
  justify-self: start;
}
.page-news .news-feature__figure {
  margin: 0;
}
.page-news .news-feature__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-news .news-feature__main h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.34;
  color: var(--paper);
}
.page-news .news-feature__main p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mute);
}
.page-news .news-feature__points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-feature__points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}
.page-news .news-feature__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 1px;
  background: var(--amber);
}
.page-news .news-feature__side {
  padding: 22px 20px;
  background: var(--layer);
  border-left: 2px solid var(--magenta);
}
.page-news .news-feature__side h3 {
  margin: 0 0 16px;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
}
.page-news .news-feature__side ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-feature__side li {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}
.page-news .news-feature__side li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-news .news-feature__side strong {
  font-size: 15px;
  font-weight: 500;
  color: var(--paper);
}
.page-news .news-feature__side span {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 筛选条 ---------- */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.page-news .news-filter__count {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

/* ---------- 专题列表 ---------- */
.page-news .news-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-news .topic-item {
  position: relative;
  border-bottom: 1px solid var(--line);
}
.page-news .topic-item__hit {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 22px 14px 22px 16px;
  color: inherit;
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease);
}
.page-news .topic-item__hit::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--amber);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}
.page-news .topic-item__hit:hover,
.page-news .topic-item__hit:focus-visible {
  background: var(--layer);
}
.page-news .topic-item__hit:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -1px;
}
.page-news .topic-item__hit:hover::before,
.page-news .topic-item__hit:focus-visible::before {
  transform: scaleY(1);
}
.page-news .topic-item__body {
  display: grid;
  gap: 10px;
  align-content: start;
  min-width: 0;
}
.page-news .topic-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.page-news .topic-item__stage {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}
.page-news .topic-item__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.4;
  color: var(--paper);
}
.page-news .topic-item__excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}
.page-news .topic-item__thumb {
  display: block;
  max-width: 300px;
}
.page-news .topic-item__thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-news .topic-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

/* ---------- 往期回看 ---------- */
.page-news .news-archive__group {
  margin-top: 26px;
  border-top: 1px solid var(--line);
}
.page-news .news-archive__item {
  border-bottom: 1px solid var(--line);
}
.page-news .news-archive__item .disclosure__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 4px;
  background: none;
  border: 0;
  font-family: var(--font-cond);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
  text-align: left;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease);
}
.page-news .news-archive__item .disclosure__btn:hover,
.page-news .news-archive__item .disclosure__btn:focus-visible {
  color: var(--cyan);
}
.page-news .news-archive__item .disclosure__icon {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--line);
}
.page-news .news-archive__item .disclosure__icon::before,
.page-news .news-archive__item .disclosure__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}
.page-news .news-archive__item .disclosure__icon::before {
  width: 6px;
  height: 1px;
}
.page-news .news-archive__item .disclosure__icon::after {
  width: 1px;
  height: 6px;
  transition: transform var(--dur) var(--ease);
}
.page-news .news-archive__item [aria-expanded="true"] .disclosure__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}
.page-news .news-archive__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 2px 4px 24px;
  list-style: none;
}
.page-news .news-archive__list li {
  display: grid;
  gap: 4px;
}
.page-news .news-archive__date {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}
.page-news .news-archive__title {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}
.page-news .news-archive__range {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 选题与线索 ---------- */
.page-news .news-submit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}
.page-news .news-submit h2 {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.32;
  color: var(--paper);
}
.page-news .news-submit__text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mute);
}
.page-news .news-submit__sources {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}
.page-news .news-submit__sources li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}
.page-news .news-submit__sources li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}
.page-news .news-submit__card {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 24px 20px;
  background: var(--layer);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}
.page-news .news-submit__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mute);
}
.page-news .news-submit__label {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}
.page-news .news-submit__card .copy-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  background: var(--ink);
  border: 1px solid var(--line);
  color: var(--paper);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease);
}
.page-news .news-submit__card .copy-chip:hover,
.page-news .news-submit__card .copy-chip:focus-visible {
  border-color: var(--cyan);
}
.page-news .news-submit__card .copy-chip__key {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--mute);
}
.page-news .news-submit__card .copy-chip__val {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12.5px;
  color: var(--paper);
  word-break: break-all;
}
.page-news .news-submit__card .copy-chip__state {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--cyan);
}
.page-news .news-submit__card .is-copied .copy-chip__state {
  color: var(--amber);
}

/* ---------- 宽屏 ---------- */
@media (min-width: 700px) {
  .page-news .news-masthead__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .topic-item__hit {
    padding: 24px 20px 24px 22px;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.85fr);
    align-items: end;
    gap: 52px;
  }
  .page-news .news-masthead__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-feature__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(270px, 1fr);
    gap: 40px;
  }
  .page-news .news-submit__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 1fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .topic-item__hit {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 36px;
  }
  .page-news .topic-item--thumb .topic-item__hit {
    grid-template-columns: minmax(0, 1fr) var(--news-thumb-w) auto;
  }
  .page-news .topic-item__thumb {
    max-width: none;
  }
  .page-news .topic-item__meta {
    justify-content: flex-end;
    max-width: 260px;
    padding-top: 4px;
    text-align: right;
  }
  .page-news .topic-item__excerpt {
    max-height: 1.8em;
    overflow: hidden;
    transition: max-height var(--dur) var(--ease), color var(--dur-fast) var(--ease);
  }
  .page-news .topic-item__hit:hover .topic-item__excerpt,
  .page-news .topic-item__hit:focus-visible .topic-item__excerpt {
    max-height: 6em;
    color: var(--paper);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-item__hit,
  .page-news .topic-item__hit::before,
  .page-news .topic-item__excerpt,
  .page-news .news-archive__item .disclosure__icon::after {
    transition: none;
  }
}