.page-news {
  --news-rail-w: 272px;
  --news-catalog-gap: clamp(24px, 3.4vw, 56px);
  --news-hair-soft: rgba(33, 26, 21, 0.12);
  background: var(--paper);
  color: var(--brown);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-block: clamp(28px, 4.5vw, 56px) clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--hair);
}

.page-news .news-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 5.4vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--brown);
  max-width: 20ch;
}

.page-news .news-hero__lede {
  margin: 20px 0 0;
  max-width: 52ch;
  color: var(--mute);
  line-height: 1.9;
}

.page-news .news-hero__aside {
  border-left: 3px solid var(--cinnabar);
  padding-left: 18px;
}

.page-news .news-hero__aside-label {
  margin: 0 0 10px;
  color: var(--cinnabar);
}

.page-news .news-scale {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
}

.page-news .news-hero__aside-note {
  margin: 10px 0 0;
  max-width: 34ch;
  color: var(--mute);
}

/* ---------- 目录区 ---------- */
.page-news .news-catalog-section {
  padding-block: clamp(34px, 5vw, 64px) clamp(40px, 5.5vw, 76px);
  border-bottom: 1px solid var(--hair);
}

.page-news .news-catalog {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
}

.page-news .news-rail__label {
  margin: 0 0 14px;
  color: var(--mute);
}

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

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

.page-news .news-rail__btn {
  display: flex;
  width: 100%;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--hair);
  background: transparent;
  color: var(--brown);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-news .news-rail__btn:hover {
  border-color: var(--hair-strong);
  background: var(--kraft);
}

.page-news .news-rail__btn[aria-selected="true"] {
  border-color: var(--cinnabar);
  background: #fff;
  box-shadow: inset 3px 0 0 var(--cinnabar);
}

.page-news .news-rail__name {
  font-weight: 700;
}

.page-news .news-rail__count {
  font-family: var(--font-num);
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--mute);
  white-space: nowrap;
}

.page-news .news-rail__btn[aria-selected="true"] .news-rail__count {
  color: var(--cinnabar);
}

.page-news .news-rail__cadence {
  margin: 6px 0 0;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

.page-news .news-rail__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 面板与条目 ---------- */
.page-news .news-stream {
  min-width: 0;
}

.page-news .news-panel {
  display: block;
}

.page-news .news-panel + .news-panel {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px dashed var(--hair-strong);
}

.page-news .news-panel__head {
  margin: 0 0 8px;
  color: var(--cinnabar);
  letter-spacing: 0.14em;
}

.page-news .col-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding-block: 26px;
  border-bottom: 1px solid var(--hair);
}

.page-news .news-panel .col-item:nth-child(even) {
  padding-block: 18px;
}

.page-news .news-panel .col-item:last-child {
  border-bottom: 0;
}

.page-news .col-item__idx {
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
}

.page-news .col-item__body {
  min-width: 0;
}

.page-news .col-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-news .col-tag {
  display: inline-block;
  padding: 2px 9px;
  border: 1px solid var(--mute);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.7;
  color: var(--mute);
}

.page-news .col-tag--prod {
  border-color: var(--ind-dai);
  color: var(--ind-dai);
}

.page-news .col-tag--year {
  border-color: var(--gilt);
  color: #8a5f1f;
}

.page-news .col-tag--craft {
  border-color: var(--ind-indigo);
  color: var(--ind-indigo);
}

.page-news .col-tag--archive {
  border-color: var(--ind-violet);
  color: var(--ind-violet);
}

.page-news .col-item__time {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-news .col-item__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(18px, 2.1vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--brown);
}

.page-news .col-item__sum {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mute);
  max-width: 62ch;
}

.page-news .col-item__drawer {
  margin-top: 14px;
}

.page-news .col-item__trigger,
.page-news .spec-card__trigger {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--hair-strong);
  background: transparent;
  color: var(--brown);
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-news .col-item__trigger:hover,
.page-news .spec-card__trigger:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.page-news .col-item__panel,
.page-news .spec-card__panel,
.page-news .arc-item__body {
  margin-top: 12px;
  padding: 14px 0 0;
  border-top: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .col-item__panel p {
  margin: 0 0 12px;
}

.page-news .col-item__panel p:last-child {
  margin-bottom: 0;
}

.page-news .col-item__media {
  grid-column: 2 / -1;
  margin: 16px 0 0;
}

.page-news .col-item__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
}

/* ---------- 系列专题 ---------- */
.page-news .news-series {
  padding-block: clamp(40px, 5.5vw, 76px);
}

.page-news .news-series__head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-news .spec-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hair-strong);
  border: 1px solid var(--hair-strong);
}

.page-news .spec-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--paper);
}

.page-news .spec-card__idx {
  margin: 0;
  color: var(--cinnabar);
}

.page-news .spec-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.35;
  color: var(--brown);
}

.page-news .spec-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
  flex: 1 1 auto;
}

.page-news .spec-card__trigger {
  align-self: flex-start;
}

/* ---------- 档案抽屉 ---------- */
.page-news .news-archive {
  background: linear-gradient(180deg, var(--paper) 0, var(--paper) 46px, var(--ink) 190px, var(--ink) 100%);
  color: var(--paper);
  padding-block: clamp(52px, 7vw, 96px);
}

.page-news .news-archive__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
}

.page-news .news-archive__label {
  margin: 0 0 14px;
  color: var(--gilt);
}

.page-news .news-archive__head {
  grid-column: 1 / -1;
}

.page-news .news-archive__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.28;
  color: var(--paper);
  max-width: 24ch;
}

.page-news .news-archive__note {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(246, 241, 230, 0.76);
}

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

.page-news .news-archive__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair-paper-strong);
}

.page-news .news-archive__media .media__caption {
  color: rgba(246, 241, 230, 0.66);
}

.page-news .arc-list {
  display: grid;
  gap: 0;
  align-content: start;
}

.page-news .arc-item {
  border-top: 1px solid var(--hair-paper);
}

.page-news .arc-item:last-child {
  border-bottom: 1px solid var(--hair-paper);
}

.page-news .arc-item__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 16px;
  width: 100%;
  padding: 18px 4px;
  border: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-sans);
  text-align: left;
  cursor: pointer;
  transition: background 260ms var(--ease);
}

.page-news .arc-item__head:hover {
  background: rgba(246, 241, 230, 0.06);
}

.page-news .arc-item__num {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gilt);
}

.page-news .arc-item__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-news .arc-item__hint {
  grid-column: 2 / -1;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(246, 241, 230, 0.6);
}

.page-news .arc-item__body {
  border-top: 1px solid var(--hair-paper);
  padding: 16px 4px 22px;
  color: rgba(246, 241, 230, 0.8);
}

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

.page-news .arc-item__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-news .arc-item__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--gilt);
}

/* ---------- 收束 ---------- */
.page-news .news-request {
  padding-block: clamp(44px, 6vw, 88px);
  background: var(--paper);
}

.page-news .news-request__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-news .news-request__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 3.2vw, 38px);
  line-height: 1.3;
  color: var(--brown);
  max-width: 24ch;
}

.page-news .news-request__text {
  margin: 18px 0 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mute);
  max-width: 58ch;
}

.page-news .news-request__contact {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--brown);
}

.page-news .news-request__contact a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-request__sep {
  margin: 0 6px;
  color: var(--hair-strong);
}

.page-news .news-request__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-news .news-request__side {
  border-left: 3px solid var(--gilt);
  padding-left: 20px;
}

.page-news .news-request__side-label {
  margin: 0 0 14px;
  color: var(--mute);
}

.page-news .news-request__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-request__links a {
  display: block;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.7;
  color: var(--brown);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .news-request__links a:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

/* ---------- 交互降级与动效 ---------- */
.page-news [data-drawer-panel][hidden] {
  display: none;
}

.page-news [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}

.page-news [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal],
  .page-news .news-rail__btn,
  .page-news .col-item__trigger,
  .page-news .spec-card__trigger,
  .page-news .arc-item__head,
  .page-news .news-request__links a {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-news .col-item--with-pic {
    grid-template-columns: auto minmax(0, 1fr) minmax(0, 0.7fr);
    align-items: start;
  }

  .page-news .col-item--with-pic .col-item__media {
    grid-column: 3 / -1;
    margin-top: 4px;
  }

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

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

  .page-news .news-archive__head {
    grid-column: 1 / 2;
  }

  .page-news .news-archive__media {
    grid-column: 2 / 3;
  }

  .page-news .arc-list {
    grid-column: 1 / -1;
  }

  .page-news .news-request__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 64px);
  }

  .page-news .news-catalog {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: var(--news-catalog-gap);
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--cmdbar-h) + 24px);
    align-self: start;
  }

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

  .page-news .col-item {
    gap: 6px 26px;
  }
}