.page-news {
  --news-side-w: 320px;
  --news-line: rgba(201, 162, 39, 0.18);
  display: block;
  position: relative;
  padding-bottom: clamp(56px, 9vw, 110px);
  overflow-x: hidden;
}

.page-news .news-top {
  position: relative;
  padding-top: clamp(26px, 5vw, 52px);
}

.page-news .news-top::before {
  content: "";
  position: absolute;
  top: -80px;
  left: -12%;
  width: 62%;
  height: 340px;
  background: radial-gradient(closest-side, rgba(201, 162, 39, 0.1), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-news .news-top > * {
  position: relative;
  z-index: 1;
}

.page-news .news-head {
  margin-top: clamp(18px, 3vw, 30px);
  max-width: 900px;
}

.page-news .news-head h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7.2vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--text-100);
  margin: 14px 0 0;
}

.page-news .news-head__lede {
  margin: 22px 0 0;
  max-width: 42em;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.75;
  color: var(--text-100);
}

.page-news .news-head__meta {
  margin: 20px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-400);
  text-transform: uppercase;
}

/* 标签带 */
.page-news .tag-rail {
  margin-top: clamp(30px, 5vw, 48px);
  border-top: 1px solid var(--steel-700);
  border-bottom: 1px solid var(--steel-700);
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.07), transparent 42%, rgba(47, 168, 255, 0.07));
}

.page-news .tag-rail__inner {
  max-width: var(--shell-w);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .tag-rail__lead {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-400);
  padding-right: 6px;
  border-right: 1px solid var(--steel-700);
}

.page-news .tag-chip {
  flex: 0 0 auto;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--steel-700);
  background: var(--ink-800);
  color: var(--text-100);
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.page-news .tag-chip:hover {
  border-color: var(--gold-500);
  background: rgba(201, 162, 39, 0.12);
  color: var(--gold-200);
}

.page-news .tag-chip:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
}

/* 图片通用 */
.page-news .media-frame img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-news .news-cover {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-news .feed-media,
.page-news .plan-media,
.page-news .roundup__media {
  margin: clamp(34px, 5vw, 54px) 0 0;
}

/* 主体两栏 */
.page-news .news-body {
  margin-top: clamp(34px, 6vw, 62px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 56px);
}

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

.page-news .feed-group {
  padding-top: clamp(18px, 3vw, 30px);
  border-top: 1px solid var(--steel-700);
}

.page-news .feed-group + .feed-group {
  margin-top: clamp(32px, 5vw, 58px);
}

.page-news .feed-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-news .feed-group__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text-100);
  margin: 0;
}

.page-news .feed-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-news .feed-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--news-line);
  transition: background-color 0.25s ease;
}

.page-news .feed-item:first-child {
  padding-top: 6px;
}

.page-news .feed-item:hover {
  background: rgba(30, 37, 48, 0.45);
}

.page-news .feed-item__top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .feed-item__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-news .feed-item__tag {
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(47, 168, 255, 0.35);
  color: var(--blue-200);
  font-size: 12px;
  line-height: 1.4;
}

.page-news .feed-item__time {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-400);
}

.page-news .feed-item__time::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--line-gold-deep);
}

.page-news .feed-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 1.8vw, 21px);
  line-height: 1.45;
  color: var(--text-100);
  margin: 12px 0 0;
  transition: color 0.25s ease;
}

.page-news .feed-item:hover .feed-item__title {
  color: var(--gold-200);
}

.page-news .feed-item__sum {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-400);
}

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

.page-news .feed-item__more summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  color: var(--blue-500);
}

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

.page-news .feed-item__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
}

.page-news .feed-item__more[open] summary::after {
  content: "−";
}

.page-news .feed-item__more summary:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
  border-radius: 3px;
}

.page-news .feed-item__more p {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--news-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-100);
}

/* 侧栏 */
.page-news .news-side {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-news .side-card {
  padding: 22px;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: var(--ink-800);
}

.page-news .side-card--raised {
  border-color: var(--line-gold-deep);
  background: linear-gradient(160deg, rgba(201, 162, 39, 0.09), rgba(17, 21, 27, 0.95) 58%);
}

.page-news .side-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--gold-200);
  margin: 0 0 14px;
}

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

.page-news .side-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-100);
}

.page-news .side-list li::before {
  counter-increment: side;
  content: counter(side, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--gold-500);
}

.page-news .side-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-400);
}

.page-news .side-card__acts {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .side-card__link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--blue-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 168, 255, 0.4);
  padding-bottom: 2px;
}

.page-news .side-card__link:hover {
  color: var(--blue-200);
  border-bottom-color: var(--blue-200);
}

/* 章节标题 */
.page-news .sec-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px;
}

.page-news .sec-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-100);
  margin: 0;
}

.page-news .sec-lede {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-400);
}

/* 新旧订阅拆解 */
.page-news .plan-diff {
  margin-top: clamp(56px, 9vw, 112px);
}

.page-news .plan-cols {
  margin-top: clamp(24px, 4vw, 36px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--steel-700);
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .plan-col {
  background: var(--ink-800);
  padding: clamp(22px, 3vw, 32px);
}

.page-news .plan-col h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--gold-500);
  margin: 0 0 14px;
}

.page-news .plan-col p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-100);
}

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

.page-news .plan-verdict {
  margin: 22px 0 0;
  padding: 15px 20px;
  border-left: 3px solid var(--orange-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255, 122, 51, 0.09);
  color: var(--orange-500);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

/* 最近一轮更新 */
.page-news .roundup {
  margin-top: clamp(56px, 9vw, 112px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news .roundup__main {
  min-width: 0;
}

.page-news .roundup-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-news .roundup-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .roundup-list__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
  padding: 2px 8px;
  border: 1px solid var(--line-gold-deep);
  border-radius: 4px;
}

.page-news .roundup-list p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-100);
}

.page-news .roundup__note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--steel-700);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-400);
}

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

/* 更新节奏 */
.page-news .cadence {
  margin-top: clamp(56px, 9vw, 112px);
  padding-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--line-gold-deep);
}

.page-news .cadence-grid {
  margin-top: clamp(24px, 4vw, 34px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-news .cadence-item {
  padding-left: 18px;
  border-left: 2px solid var(--line-gold-deep);
}

.page-news .cadence-item h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--gold-200);
  margin: 0 0 10px;
}

.page-news .cadence-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-400);
}

.page-news .yearline {
  margin-top: clamp(30px, 5vw, 46px);
  padding: 16px 0 4px;
  display: flex;
  align-items: flex-end;
  gap: clamp(14px, 3vw, 34px);
  overflow-x: auto;
  border-bottom: 1px solid var(--steel-700);
}

.page-news .yearline__lead {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-400);
  padding-bottom: 8px;
}

.page-news .yearline__node {
  flex: 0 0 auto;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-400);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-news .yearline__tick {
  display: block;
  width: 1px;
  height: 16px;
  background: var(--line-gold-deep);
  transition: background-color 0.25s ease, height 0.25s ease;
}

.page-news .yearline__node:hover {
  color: var(--gold-200);
}

.page-news .yearline__node:hover .yearline__tick {
  background: var(--gold-500);
  height: 26px;
}

.page-news .yearline__node:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 3px;
  border-radius: 3px;
}

.page-news .cadence__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-400);
}

.page-news .cadence__foot a {
  color: var(--blue-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 168, 255, 0.35);
}

.page-news .cadence__foot a:hover {
  color: var(--blue-200);
  border-bottom-color: var(--blue-200);
}

/* 桌面端 */
@media (min-width: 860px) {
  .page-news .plan-cols {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .page-news .roundup {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 1024px) {
  .page-news .news-body {
    grid-template-columns: minmax(0, 1fr) var(--news-side-w);
    align-items: start;
  }

  .page-news .news-side {
    position: sticky;
    top: calc(var(--head-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed-item,
  .page-news .tag-chip,
  .page-news .yearline__node,
  .page-news .yearline__tick,
  .page-news .feed-item__title {
    transition: none;
  }
}
</main>