.page-news {
  --news-accent: var(--ice);
  --news-row-gap: clamp(10px, 1.4vw, 16px);
  padding-bottom: clamp(32px, 5vw, 64px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(20px, 3vw, 32px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(78, 168, 222, .16), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(232, 180, 74, .10), transparent 60%);
}

.page-news .news-hero .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-news .news-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  align-items: end;
}

.page-news .news-h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.005em;
  color: var(--paper);
  max-width: 14em;
}

.page-news .news-lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: rgba(242, 239, 231, .82);
}

/* 版本状态卡 */
.page-news .news-status {
  border: 1px solid var(--gold-line);
  border-top: 3px solid var(--gold);
  background:
    linear-gradient(180deg, rgba(232, 180, 74, .10), transparent 58%),
    var(--panel);
  padding: clamp(20px, 2.4vw, 28px);
}

.page-news .news-status-label {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-news .news-status-ver {
  margin: 6px 0 18px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(48px, 9vw, 92px);
  line-height: .98;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-news .news-status-list {
  margin: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-news .news-status-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 14px;
  line-height: 1.6;
}

.page-news .news-status-row dt {
  color: var(--stone);
  flex: 0 0 auto;
}

.page-news .news-status-row dd {
  margin: 0;
  color: var(--paper);
  font-weight: 600;
  text-align: right;
}

/* ---------- 时间轴 ---------- */
.page-news .news-sub {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.8;
  color: var(--stone);
}

.page-news .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-news .tab {
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--stone);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 9px 20px;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.page-news .tab:hover {
  border-color: var(--ice);
  color: var(--paper);
  transform: translateY(-1px);
}

.page-news .tab[aria-selected="true"] {
  background: var(--ice);
  border-color: var(--ice);
  color: #06121f;
  font-weight: 700;
}

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

.page-news .tabpanel:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 6px;
}

.page-news .news-panel--ver { --news-accent: var(--ice); }
.page-news .news-panel--env { --news-accent: var(--moss); }
.page-news .news-panel--cat { --news-accent: var(--violet); }

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

.page-news .news-item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--news-accent, var(--ice));
  background: var(--panel);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.page-news .news-item:hover {
  border-color: var(--line-strong);
  border-left-color: var(--news-accent, var(--ice));
}

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

.page-news .news-sum {
  position: relative;
  display: grid;
  grid-template-columns: 72px 104px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 18px;
  padding: 18px 52px 18px 20px;
  cursor: pointer;
  list-style: none;
}

.page-news .news-sum::-webkit-details-marker { display: none; }
.page-news .news-sum::marker { content: ""; }

.page-news .news-sum::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-size: 14px;
  line-height: 1;
  color: var(--stone);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-news details[open] > .news-sum::after {
  content: "−";
  color: var(--gold);
  border-color: var(--gold-line);
}

.page-news details[open] > .news-sum .news-headline {
  color: var(--gold);
}

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

.page-news .news-ver {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .01em;
  color: var(--news-accent, var(--ice));
}

.page-news .news-when {
  font-size: 13px;
  color: var(--stone);
  white-space: nowrap;
}

.page-news .news-headline {
  font-size: clamp(15px, 1.15vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 180ms ease;
}

.page-news .news-flag {
  justify-self: end;
  white-space: nowrap;
}

.page-news .news-body {
  padding: 0 52px 20px 20px;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-top: 0;
}

.page-news .news-row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.8;
  color: rgba(242, 239, 231, .76);
}

.page-news .news-key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gold);
  padding-top: 2px;
}

/* ---------- 适配环境 ---------- */
.page-news .news-env-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-env-card {
  background: var(--panel);
  padding: 22px 22px 24px;
}

.page-news .news-env-os {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.35;
  color: var(--paper);
}

.page-news .news-env-meta {
  margin: 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--stone);
  border-top: 1px dashed var(--line);
  padding: 7px 0;
}

.page-news .news-env-val {
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--ice);
}

.page-news .news-env-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(242, 239, 231, .7);
}

.page-news .news-env-tail {
  margin: 22px 0 0;
  max-width: 44em;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 通用图 ---------- */
.page-news .news-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .news-figure figcaption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  border-top: 1px solid var(--line);
}

.page-news .news-figure--env {
  margin-top: clamp(28px, 4vw, 44px);
}

/* ---------- 分类与目录 ---------- */
.page-news .news-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news .news-split-main .prose {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.85;
  color: rgba(242, 239, 231, .8);
}

.page-news .news-cat-link {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--stone);
}

.page-news .link-arrow {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
}

.page-news .link-arrow:hover {
  border-bottom-color: var(--gold);
}

.page-news .news-fixed {
  margin-top: clamp(32px, 4.5vw, 56px);
  border-top: 1px solid var(--line);
  padding-top: clamp(22px, 3vw, 32px);
}

.page-news .news-fixed-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 800;
  color: var(--paper);
}

.page-news .news-fixed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-fixed-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

/* ---------- 服务公告 ---------- */
.page-news .news-notice-list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-news .news-notice-item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  background:
    linear-gradient(90deg, rgba(255, 122, 89, .08), transparent 42%),
    var(--panel);
  padding: 22px 22px 24px;
}

.page-news .news-notice-when {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--coral);
}

.page-news .news-notice-title {
  margin: 8px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 800;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .news-notice-desc,
.page-news .news-notice-act {
  margin: 0;
  font-size: clamp(14px, 1vw, 15.5px);
  line-height: 1.85;
  color: rgba(242, 239, 231, .76);
}

.page-news .news-notice-act {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: var(--stone);
}

.page-news .news-notice-act .news-key {
  margin-right: 10px;
}

.page-news .news-notice-tail {
  margin: 22px 0 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 版本核对 ---------- */
.page-news .news-verify .news-split-main .prose {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.85;
  color: rgba(242, 239, 231, .8);
}

.page-news .news-steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-steps .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  background: var(--panel);
  padding: 18px 20px;
}

.page-news .news-steps .step-num {
  font-family: var(--font-num);
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--ice);
}

.page-news .news-steps .step-body p {
  margin: 0;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.8;
  color: rgba(242, 239, 231, .84);
}

/* ---------- 回看与通知 ---------- */
.page-news .news-watch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-news .news-watch-main .prose {
  margin: 14px 0 0;
  max-width: 42em;
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.85;
  color: rgba(242, 239, 231, .8);
}

.page-news .news-watch-panel {
  border: 1px solid var(--ice-deep);
  background:
    linear-gradient(180deg, rgba(78, 168, 222, .12), transparent 62%),
    var(--panel);
  padding: clamp(22px, 2.6vw, 30px);
}

.page-news .news-watch-k {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(16px, 1.3vw, 19px);
  color: var(--paper);
}

.page-news .news-watch-v {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(242, 239, 231, .78);
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .page-news .news-sum {
    grid-template-columns: auto 1fr;
    gap: 6px 14px;
    padding: 16px 48px 16px 16px;
  }

  .page-news .news-when {
    justify-self: start;
  }

  .page-news .news-headline {
    grid-column: 1 / -1;
    margin-top: 4px;
  }

  .page-news .news-flag {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .page-news .news-body {
    padding: 16px 20px 20px 16px;
  }

  .page-news .news-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-news .news-key {
    padding-top: 0;
  }
}

@media (max-width: 620px) {
  .page-news .news-hero {
    padding-bottom: 36px;
  }

  .page-news .news-status-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .page-news .news-status-row dd {
    text-align: left;
  }

  .page-news .tab {
    padding: 8px 16px;
    font-size: 13px;
  }

  .page-news .news-steps .step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-news .news-figure figcaption {
    font-size: 12px;
  }
}

@media (min-width: 760px) {
  .page-news .news-env-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 1000px) {
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-news .news-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-news .news-split--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }

  .page-news .news-watch-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }
}

@media (min-width: 1180px) {
  .page-news .news-env-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-news .tab,
  .page-news .news-item,
  .page-news .news-headline,
  .page-news .news-sum::after {
    transition: none;
  }

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