.page-news {
  --news-rail: 210px;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--shell-h) + 26px) 0 30px;
  border-bottom: 3px solid var(--charcoal);
}

.page-news .news-masthead__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-masthead__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.55) contrast(1.05);
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(11, 26, 20, 0.82) 0%, rgba(11, 26, 20, 0.93) 62%, rgba(11, 26, 20, 0.97) 100%),
    repeating-linear-gradient(90deg, rgba(140, 154, 147, 0.16) 0 1px, transparent 1px 88px);
}

.page-news .news-masthead__inner {
  position: relative;
  z-index: 1;
}

.page-news .news-masthead .qm-crumbs {
  color: rgba(244, 239, 226, 0.62);
}

.page-news .news-masthead .qm-crumbs__item[aria-current="page"] {
  color: var(--lime);
}

.page-news .news-masthead .qm-eyebrow {
  margin: 20px 0 10px;
  color: var(--lime);
}

.page-news .news-masthead__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(40px, 10vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-news .news-masthead__lede {
  max-width: 62ch;
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 239, 226, 0.86);
}

.page-news .news-masthead__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(140, 154, 147, 0.42);
  background: rgba(140, 154, 147, 0.3);
}

.page-news .news-masthead__stat {
  background: rgba(11, 26, 20, 0.68);
  padding: 10px 12px 12px;
}

.page-news .news-masthead__stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-news .news-masthead__stat span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(244, 239, 226, 0.66);
}

/* ---------- 主体骨架 ---------- */
.page-news .news-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 30px;
  padding-bottom: 60px;
}

/* ---------- 左侧栏目标签 ---------- */
.page-news .news-filters {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}

.page-news .news-filters h2 {
  margin: 0 0 10px;
  color: var(--ink-mute);
}

.page-news .news-filter-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.page-news .news-chip {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  min-width: 148px;
  padding: 9px 10px;
  border-left: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-chip .qm-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-mute);
}

.page-news .news-chip:hover {
  background: var(--paper-2);
  color: var(--ink);
}

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

.page-news .news-chip.is-active {
  background: var(--lime);
  border-left-color: var(--ink);
  color: var(--ink);
  font-weight: 600;
}

.page-news .news-chip.is-active .qm-num {
  color: var(--ink);
}

.page-news .news-filters__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 章节 ---------- */
.page-news .news-feed {
  min-width: 0;
}

.page-news .news-section {
  padding-bottom: 40px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-section--last {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-section__head {
  margin-bottom: 20px;
}

.page-news .news-section__head .qm-section__index {
  color: var(--ink-mute);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-news .news-section__head .qm-section__title {
  margin: 6px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(23px, 5vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .news-section__head .qm-section__lede {
  max-width: 68ch;
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 条目 ---------- */
.page-news .news-item {
  position: relative;
  border-top: 1px solid var(--line);
  padding: 15px 26px 15px 14px;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .news-item:hover {
  transform: translate(-2px, -2px);
  background: var(--paper-3);
}

.page-news .news-item details {
  display: block;
}

.page-news .news-item__summary {
  display: block;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-item__summary::marker {
  content: "";
}

.page-news .news-item__summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.page-news .news-item["open"] .news-item__summary::after,
.page-news .news-item details[open] .news-item__summary::after {
  content: "－";
}

.page-news .news-item__summary::after {
  content: "＋";
  position: absolute;
  top: 15px;
  right: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-mute);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}

.page-news .news-item__title {
  display: block;
  margin: 8px 0 7px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .news-item__lede {
  display: block;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .news-item__more {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-news .news-item__more p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-mute);
}

/* 置顶条目 */
.page-news .news-item--lead {
  border-top: 3px solid var(--ink);
  border-left: 6px solid var(--ink);
  background: var(--white);
  box-shadow: 7px 7px 0 rgba(11, 26, 20, 0.14);
  padding: 17px 26px 17px 18px;
  margin-bottom: 12px;
}

.page-news .news-item--lead:hover {
  background: var(--white);
  box-shadow: 9px 9px 0 rgba(11, 26, 20, 0.2);
}

.page-news .news-item--lead .news-item__title {
  font-size: clamp(19px, 3.6vw, 25px);
  font-weight: 800;
  line-height: 1.35;
}

.page-news .news-item--lead .news-item__summary::after {
  top: 17px;
}

/* 关键阶段条目 */
.page-news .news-item--releg {
  padding-left: 24px;
}

.page-news .news-item--releg::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 13px;
  height: 3px;
  background: var(--amber);
}

.page-news .news-item--releg .news-item__summary::after {
  color: var(--amber);
}

/* ---------- 图 ---------- */
.page-news .news-figure {
  margin: 0 0 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}

.page-news .news-figure figcaption {
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: rgba(244, 239, 226, 0.78);
  background: var(--charcoal);
  border-top: 1px solid rgba(140, 154, 147, 0.35);
}

.page-news .news-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news .news-figure--inline {
  margin: 0;
}

/* ---------- 更新日志 ---------- */
.page-news .news-log {
  border-top: 3px solid var(--ink);
  background: var(--white);
}

.page-news .news-log__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-log__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--paper-2);
}

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

.page-news .news-log__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--green);
  text-transform: uppercase;
}

.page-news .news-log__val {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ---------- 表格 ---------- */
.page-news .news-cup-table__caption {
  padding: 0 0 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  text-transform: uppercase;
}

.page-news .news-cup-table th[scope="row"] {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.page-news .news-cups__note {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 合作入口 ---------- */
.page-news .news-coop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .news-coop__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding: 16px 18px;
  border: 1px solid var(--ink);
  background: var(--paper-3);
  box-shadow: 5px 5px 0 rgba(11, 26, 20, 0.12);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .news-coop__item:hover {
  transform: translate(-2px, -2px);
  background: var(--white);
  box-shadow: 8px 8px 0 rgba(11, 26, 20, 0.18);
}

.page-news .news-coop__item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-news .news-coop__key {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-news .news-coop__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .news-coop__desc {
  grid-column: 2;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-coop {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-log__row {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 768px) {
  .page-news .news-masthead {
    padding: calc(var(--shell-h) + 40px) 0 44px;
  }
  .page-news .news-masthead__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 760px;
  }
  .page-news .news-split {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 26px;
    align-items: start;
  }
  .page-news .news-split--reverse {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 900px) {
  .page-news .news-stream {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 44px;
    padding-top: 46px;
  }
  .page-news .news-filters {
    position: sticky;
    top: calc(var(--shell-h) + 18px);
    align-self: start;
  }
  .page-news .news-filter-list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-news .news-filter-list > li + li {
    margin-top: 2px;
  }
  .page-news .news-chip {
    min-width: 0;
    width: 100%;
  }
  .page-news .news-item {
    padding-right: 30px;
  }
}

@media (min-width: 1120px) {
  .page-news .news-coop {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .news-coop__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
  .page-news .news-coop__key {
    grid-row: auto;
  }
  .page-news .news-coop__desc {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-coop__item,
  .page-news .news-chip {
    transition: none;
  }
  .page-news .news-item:hover,
  .page-news .news-coop__item:hover {
    transform: none;
  }
}