.page-news {
  --news-hairline: rgba(22, 40, 60, .14);
  --news-hairline-soft: rgba(22, 40, 60, .07);
  --news-moss-wash: rgba(92, 115, 96, .13);
  --news-amber-wash: rgba(208, 138, 44, .14);
  --news-steel-wash: rgba(110, 138, 153, .12);
}

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

/* ---------- 刊头 ---------- */
.page-news .news-masthead {
  padding: clamp(24px, 4vw, 42px) 0 clamp(30px, 5vw, 58px);
  border-bottom: 1px solid var(--news-hairline);
}

.page-news .breadcrumb {
  margin-bottom: clamp(20px, 3.2vw, 40px);
}

.page-news .news-masthead__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-news .news-masthead__lead h1 {
  font-family: var(--font-serif);
  font-size: clamp(31px, 5.4vw, 62px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: .005em;
  color: var(--ink-blue);
  margin: 14px 0 18px;
  max-width: 17ch;
}

.page-news .news-masthead__lead .lede {
  max-width: 54ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: rgba(27, 31, 36, .88);
  margin: 0;
}

.page-news .news-masthead__panel {
  padding: 22px 24px 26px;
  background: rgba(22, 40, 60, .045);
  border: 1px solid var(--news-hairline);
  clip-path: polygon(0 0, calc(100% - var(--cut-md)) 0, 100% var(--cut-md), 100% 100%, 0 100%);
}

.page-news .news-masthead__panel-index {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--rock);
  margin: 0 0 16px;
}

.page-news .news-masthead__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-masthead__fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--news-hairline-soft);
}

.page-news .news-masthead__fact:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-masthead__facts-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  color: var(--amber);
  min-width: 2ch;
}

.page-news .news-masthead__facts-label {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-blue);
}

/* ---------- 通用章节文字 ---------- */
.page-news h2 {
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.3vw, 37px);
  font-weight: 600;
  line-height: 1.26;
  color: var(--ink-blue);
  margin: 10px 0 16px;
}

.page-news .section-head__index {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--rock);
  margin: 0;
  text-transform: uppercase;
}

.page-news p {
  font-size: 16px;
  line-height: 1.88;
}

/* ---------- 记录清单 ---------- */
.page-news .news-log {
  padding-top: clamp(34px, 5vw, 64px);
}

.page-news .news-log__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
  align-items: end;
}

.page-news .news-log__figure .media-caption {
  margin-top: 12px;
}

.page-news .news-log__note p {
  color: rgba(27, 31, 36, .86);
  max-width: 60ch;
  margin: 0 0 14px;
}

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

/* 筛选带 */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: clamp(26px, 3.6vw, 40px) 0 12px;
}

.page-news .news-filter__btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  padding: 9px 17px;
  border: 1px solid var(--news-hairline);
  background: transparent;
  color: var(--ink-blue);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-news .news-filter__btn:hover {
  background: var(--amber-soft);
  border-color: var(--amber-soft);
  transform: translateY(-2px);
}

.page-news .news-filter__btn[aria-pressed="true"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-deep);
}

.page-news .news-filter__btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-news .news-count {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--rock);
  margin: 0;
}

.page-news .news-count .filter-count {
  color: var(--ink-blue);
  font-weight: 500;
}

/* 条目 */
.page-news .news-list {
  margin-top: clamp(14px, 2vw, 22px);
}

.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 22px 0 24px 22px;
}

.page-news .news-item::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 0;
  bottom: 0;
  height: 1px;
  background: rgba(142, 147, 143, .5);
}

.page-news .news-item.is-featured::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 30px;
  width: 3px;
  background: var(--amber);
}

.page-news .news-item__index {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-news .news-item__no {
  color: var(--ink-blue);
  font-weight: 500;
}

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

.page-news .news-item__flag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--clay);
  padding-left: 10px;
  border-left: 1px solid rgba(180, 100, 63, .4);
}

.page-news .news-item__title {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-blue);
  margin: 0 0 8px;
  max-width: 44ch;
}

.page-news .news-item__text {
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(27, 31, 36, .85);
  margin: 0;
  max-width: 62ch;
}

.page-news .news-item__impact {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-blue);
  background: var(--news-steel-wash);
  border-left: 2px solid var(--steel);
  padding: 9px 13px;
  margin: 13px 0 0;
  max-width: 60ch;
}

.page-news .news-item__impact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--steel);
  margin-right: 8px;
}

.page-news .news-item__more {
  margin-top: 12px;
}

.page-news .news-item__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--clay);
  padding: 2px 0;
}

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

.page-news .news-item__more summary::before {
  content: "▸";
  font-size: 10px;
  line-height: 1;
}

.page-news .news-item__more[open] summary::before {
  content: "▾";
}

.page-news .news-item__more summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-news .news-item__more p {
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(27, 31, 36, .86);
  margin: 10px 0 0;
  max-width: 58ch;
}

.page-news .news-item a {
  color: var(--ink-blue);
  text-decoration: underline;
  text-decoration-color: rgba(208, 138, 44, .65);
  text-underline-offset: 3px;
}

.page-news .news-item a:hover {
  color: var(--clay);
}

/* 季度小结 */
.page-news .news-digest {
  margin: clamp(26px, 3.4vw, 38px) 0;
  padding: 22px 24px 24px;
  background: var(--news-moss-wash);
  border-left: 3px solid var(--moss);
}

.page-news .news-digest__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--moss);
  margin-bottom: 12px;
}

.page-news .news-digest p {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
  color: var(--ink-blue);
  margin: 0;
  max-width: 60ch;
}

/* ---------- 维护节奏（深色分区） ---------- */
.page-news .news-upkeep {
  position: relative;
  overflow: hidden;
  background: var(--ink-blue);
  margin-top: clamp(46px, 7vw, 96px);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-news .news-upkeep::after {
  content: "";
  position: absolute;
  left: 58%;
  right: -12%;
  bottom: -46%;
  height: 240px;
  background: linear-gradient(112deg, rgba(208, 138, 44, .26), rgba(208, 138, 44, 0) 68%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-news .news-upkeep__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-news .news-upkeep .section-head__index {
  color: var(--amber);
}

.page-news .news-upkeep h2 {
  color: var(--paper);
}

.page-news .news-upkeep__text p {
  color: rgba(247, 242, 232, .85);
  margin: 0;
  max-width: 56ch;
}

.page-news .news-upkeep__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-upkeep__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 242, 232, .86);
}

.page-news .news-upkeep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: 9px;
  height: 1px;
  background: var(--amber);
}

.page-news .news-upkeep__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--amber-soft);
  margin-right: 8px;
}

.page-news .news-upkeep__figure .media-frame {
  border: 1px solid var(--line-paper);
}

.page-news .news-upkeep__figure .media-caption {
  color: rgba(247, 242, 232, .6);
}

/* ---------- 校对印记 ---------- */
.page-news .news-proof {
  padding-top: clamp(46px, 7vw, 92px);
}

.page-news .news-proof__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
}

.page-news .news-proof__text h2::after {
  content: "";
  display: block;
  width: 58px;
  height: 2px;
  background: var(--clay);
  margin-top: 16px;
  transform: rotate(-1.5deg);
}

.page-news .news-proof__text p {
  color: rgba(27, 31, 36, .86);
  margin: 0 0 14px;
  max-width: 58ch;
}

.page-news .news-proof__text a {
  color: var(--ink-blue);
  text-decoration: underline;
  text-decoration-color: rgba(208, 138, 44, .65);
  text-underline-offset: 3px;
}

.page-news .news-proof__stamp {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--rock);
  margin-top: 22px;
}

/* ---------- 往期归档 ---------- */
.page-news .news-archive {
  padding-top: clamp(46px, 7vw, 92px);
}

.page-news .news-archive__head p {
  color: rgba(27, 31, 36, .86);
  margin: 0;
  max-width: 64ch;
}

.page-news .news-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(28px, 4vw, 46px);
  align-items: stretch;
}

.page-news .news-archive__items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  align-content: start;
  gap: 0;
}

.page-news .news-archive__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--news-hairline);
}

.page-news .news-archive__item:first-child {
  border-top: 1px solid var(--news-hairline);
}

.page-news .news-archive__quarter {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--moss);
}

.page-news .news-archive__desc {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(27, 31, 36, .85);
}

.page-news .news-archive__foot {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  font-size: 15.5px;
  color: rgba(27, 31, 36, .86);
}

.page-news .news-archive__foot a {
  color: var(--ink-blue);
  text-decoration: underline;
  text-decoration-color: rgba(208, 138, 44, .65);
  text-underline-offset: 3px;
}

/* ---------- 更新提醒 ---------- */
.page-news .news-remind {
  padding: clamp(46px, 6vw, 88px) 0 clamp(54px, 7vw, 96px);
}

.page-news .news-remind__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
  padding: clamp(26px, 4vw, 46px);
  background: var(--news-amber-wash);
  border: 1px solid rgba(208, 138, 44, .34);
  clip-path: polygon(0 0, calc(100% - var(--cut-md)) 0, 100% var(--cut-md), 100% 100%, 0 100%);
}

.page-news .news-remind__text h2 {
  margin-bottom: 14px;
}

.page-news .news-remind__text p {
  color: rgba(27, 31, 36, .88);
  margin: 0;
  max-width: 62ch;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-item {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 0 30px;
    padding: 24px 0 26px 22px;
  }

  .page-news .news-item__index {
    display: block;
    padding-top: 4px;
  }

  .page-news .news-item__time {
    display: block;
    margin-top: 6px;
  }

  .page-news .news-archive__item {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 20px;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-news .news-log__top {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(30px, 4vw, 58px);
  }

  .page-news .news-upkeep__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-news .news-proof__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-news .news-archive__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-news .news-remind__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
  }
}

@media (max-width: 520px) {
  .page-news .news-item {
    padding-left: 14px;
  }

  .page-news .news-item::after {
    left: 14px;
  }

  .page-news .news-item.is-featured::before {
    top: 24px;
    bottom: 28px;
  }

  .page-news .news-filter__btn {
    padding: 8px 13px;
    font-size: 12px;
  }

  .page-news .news-digest {
    padding: 18px 18px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-filter__btn {
    transition: none;
  }

  .page-news .news-filter__btn:hover {
    transform: none;
  }
}