/* ===== 专题中心 / page-news ===== */

.page-news {
  --cat: var(--cyan);
  --news-rail: 264px;
  --news-tint: rgba(56, 232, 212, .06);
  background: var(--ink-950);
  color: var(--text);
}

.page-news .breadcrumb {
  margin-bottom: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */

.page-news .news-lead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-lead::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(110% 70% at 12% 0%, rgba(56, 232, 212, .14), transparent 62%),
    radial-gradient(90% 60% at 92% 6%, rgba(255, 90, 43, .13), transparent 58%),
    linear-gradient(180deg, var(--ink-900), var(--ink-950) 80%);
}

.page-news .news-lead::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(43, 58, 85, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 58, 85, .5) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
}

.page-news .news-lead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

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

.page-news .news-lead__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-lead__title {
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: .04em;
  color: var(--text);
}

.page-news .news-lead__dek {
  margin: 0 0 26px;
  max-width: 56ch;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.86;
  color: var(--text);
  opacity: .84;
}

.page-news .news-gains {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 56ch;
}

.page-news .news-gains li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text);
  opacity: .92;
}

.page-news .news-gains li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 14px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

.page-news .news-lead__meta {
  margin: 28px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-news .news-lead__feature {
  display: grid;
  gap: 14px;
  justify-items: start;
  max-width: 880px;
  margin-top: clamp(32px, 5vw, 60px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  background: linear-gradient(115deg, rgba(17, 31, 58, .95), rgba(11, 20, 40, .95));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-news .news-lead__feature-title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: .03em;
  color: var(--text);
}

.page-news .news-lead__feature-sum {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 图片容器 ---------- */

.page-news .news-figure {
  margin: 0;
  min-width: 0;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-news .news-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .news-figure--wide {
  margin-bottom: 22px;
}

/* ---------- 栏目分类 ---------- */

.page-news .news-cats {
  padding: clamp(48px, 7vw, 96px) 0 clamp(30px, 4vw, 52px);
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--head-h) + 20px);
}

.page-news .news-cats__intro {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.84;
  color: var(--muted);
}

.page-news .cat-list {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .cat-list__row {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-areas:
    "no name"
    ". freq"
    ". who";
  gap: 4px 14px;
  align-items: baseline;
  padding: 18px 0 18px 16px;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-news .cat-list__row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cat);
  opacity: .45;
  transition: opacity var(--dur) var(--ease);
}

.page-news .cat-list__row:hover {
  background: var(--news-tint);
}

.page-news .cat-list__row:hover::before {
  opacity: 1;
}

.page-news .cat-list__row--season { --cat: var(--cyan); }
.page-news .cat-list__row--version { --cat: var(--amber); }
.page-news .cat-list__row--roster { --cat: var(--orange); }
.page-news .cat-list__row--data { --cat: var(--cyan-deep); }
.page-news .cat-list__row--device { --cat: var(--muted); }

.page-news .cat-list__no {
  grid-area: no;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-news .cat-list__name {
  grid-area: name;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--text);
}

.page-news .cat-list__freq {
  grid-area: freq;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--cat);
}

.page-news .cat-list__who {
  grid-area: who;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 索引 + 内容流 ---------- */

.page-news .news-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  padding: clamp(44px, 6vw, 88px) 0 clamp(64px, 9vw, 140px);
}

.page-news .news-rail {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-news .news-rail__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-news .news-rail__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-news .news-rail__nav::-webkit-scrollbar {
  display: none;
}

.page-news .news-rail__link {
  flex: 0 0 auto;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  white-space: nowrap;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-news .news-rail__link .mono {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--line);
  transition: color var(--dur) var(--ease);
}

.page-news .news-rail__link:hover {
  color: var(--text);
  border-color: var(--cyan-deep);
  background: var(--news-tint);
}

.page-news .news-rail__link.is-active {
  color: var(--ink-950);
  border-color: var(--cyan);
  background: var(--cyan);
}

.page-news .news-rail__link.is-active .mono {
  color: var(--ink-950);
  opacity: .7;
}

.page-news .news-rail__note {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  background: var(--ink-900);
}

.page-news .news-rail__note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--muted);
}

.page-news .news-stream {
  display: grid;
  gap: clamp(44px, 6vw, 84px);
  min-width: 0;
}

/* ---------- 分组 ---------- */

.page-news .news-group {
  scroll-margin-top: calc(var(--head-h) + 24px);
  min-width: 0;
}

.page-news .news-group--season { --cat: var(--cyan); }
.page-news .news-group--version { --cat: var(--amber); }
.page-news .news-group--roster { --cat: var(--orange); }
.page-news .news-group--data { --cat: var(--cyan-deep); }
.page-news .news-group--device { --cat: var(--muted); }
.page-news .news-group--collab { --cat: var(--orange); }

.page-news .news-group__head {
  position: relative;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 2px;
  background: var(--cat);
}

.page-news .news-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.26;
  letter-spacing: .05em;
  color: var(--text);
}

.page-news .news-group__note {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-group__more {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-news .news-group__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 232, 212, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-group__more a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 条目列表 ---------- */

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .news-item {
  position: relative;
  padding: 22px 0 22px 20px;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--cat);
  transform: scaleY(.32);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  background: linear-gradient(90deg, var(--news-tint), transparent 72%);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  transform: scaleY(1);
}

.page-news .news-item__head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
}

.page-news .news-item__no {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cat);
}

.page-news .news-item__title {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 900;
  line-height: 1.46;
  letter-spacing: .02em;
  color: var(--text);
}

.page-news .news-item__time {
  grid-column: 2;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-news .news-item__sum {
  margin: 10px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.84;
  color: var(--muted);
}

/* ---------- 协作区块 ---------- */

.page-news .news-collab {
  display: grid;
  gap: 22px;
}

.page-news .news-collab__intro {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--muted);
}

.page-news .collab-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-news .collab-steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-news .collab-steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .collab-steps__no {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
  padding-top: 3px;
}

.page-news .collab-steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 900;
  letter-spacing: .03em;
  color: var(--text);
}

.page-news .collab-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-news .news-collab__cta {
  margin: 0;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  background: linear-gradient(90deg, rgba(255, 90, 43, .12), transparent 74%);
  font-size: 15px;
  line-height: 1.84;
  color: var(--text);
}

.page-news .news-collab__cta .link-accent {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 194, 77, .5);
}

.page-news .news-collab__cta .link-accent:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 820px) {
  .page-news .cat-list__row {
    grid-template-columns: 52px 186px minmax(0, 1fr) minmax(0, 1.1fr);
    grid-template-areas: "no name freq who";
    align-items: center;
    gap: 0 22px;
    padding: 20px 0 20px 18px;
  }
}

@media (min-width: 940px) {
  .page-news .news-lead__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: center;
  }
}

@media (min-width: 1020px) {
  .page-news .news-stage {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--head-h) + 20px);
    gap: 20px;
  }

  .page-news .news-rail__nav {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-news .news-rail__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 9px 12px;
    font-size: 15px;
  }

  .page-news .news-rail__link:hover {
    border-left-color: var(--cyan-deep);
  }

  .page-news .news-rail__link.is-active {
    color: var(--text);
    border-left-color: var(--cyan);
    background: linear-gradient(90deg, rgba(56, 232, 212, .12), transparent);
  }

  .page-news .news-rail__link.is-active .mono {
    color: var(--cyan);
    opacity: 1;
  }

  .page-news .news-item__head {
    grid-template-columns: 40px minmax(0, 1fr) auto;
    gap: 6px 20px;
  }

  .page-news .news-item__time {
    grid-column: 3;
    text-align: right;
  }

  .page-news .news-item__sum {
    padding-left: 60px;
  }
}

@media (min-width: 1240px) {
  .page-news .news-list {
    padding-right: 8px;
  }
}

/* ---------- 降低动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item::before,
  .page-news .cat-list__row::before,
  .page-news .news-rail__link,
  .page-news .news-item,
  .page-news .cat-list__row {
    transition-duration: .01ms;
  }

  .page-news .news-item::before {
    transform: scaleY(1);
  }
}
<<<END>>>