/* ===== 档案更新动态 · 页面专属样式（作用域 .page-news） ===== */
.page-news {
  --news-rail: 236px;
  --news-card-ink: var(--c-navy);
  background-color: var(--c-navy);
  color: var(--c-paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-news .media-figure {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
}

.page-news .media-frame {
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-news .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 52px) 0 clamp(40px, 6vw, 74px);
  background:
    radial-gradient(120% 100% at 92% -22%, rgba(201, 162, 74, .22), transparent 62%),
    linear-gradient(158deg, var(--c-navy-2) 0%, var(--c-navy) 56%, var(--c-ink) 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--line-gold-soft);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -38%;
  width: clamp(220px, 40vw, 520px);
  height: clamp(220px, 40vw, 520px);
  background: linear-gradient(135deg, rgba(200, 50, 43, .20), rgba(201, 162, 74, .05));
  clip-path: polygon(0 0, 100% 16%, 74% 100%);
  pointer-events: none;
}

.page-news .news-hero > .container {
  position: relative;
  z-index: 1;
}

.page-news .news-hero .breadcrumb a {
  color: var(--c-gold-2);
}

.page-news .news-hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 42px);
  margin-top: clamp(18px, 2.6vw, 32px);
}

.page-news .news-hero-text {
  min-width: 0;
}

.page-news .news-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--step-5);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--c-paper-2);
}

.page-news .news-lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--paper-82);
}

.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 30px);
}

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

.page-news .news-hero-figure .media-frame {
  border-radius: var(--radius-l);
}

/* ---------- 主体布局：窄栏 + 连续画布 ---------- */
.page-news .news-body {
  padding: clamp(40px, 6vw, 78px) 0 clamp(58px, 8vw, 104px);
}

.page-news .news-layout {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

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

.page-news .news-rail-inner {
  padding-left: 16px;
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--c-gold), rgba(201, 162, 74, .08)) 1;
}

.page-news .rail-heading {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .16em;
  color: var(--c-gold);
}

.page-news .rail-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-news .rail-index a {
  display: block;
  padding: 8px 0;
  color: var(--paper-72);
  font-size: var(--step-0);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-gold-soft);
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-news .rail-index a:hover,
.page-news .rail-index a:focus-visible {
  color: var(--c-gold-2);
  padding-left: 7px;
}

.page-news .news-stream {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(46px, 6vw, 80px);
}

.page-news .stream-block {
  min-width: 0;
}

.page-news .stream-block + .stream-block {
  padding-top: clamp(34px, 5vw, 58px);
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .stream-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .18em;
  color: var(--c-gold);
}

.page-news .stream-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--step-4);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--c-paper-2);
}

.page-news .stream-intro {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.8;
}

/* ---------- 记录卡片 ---------- */
.page-news .record-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 32px);
}

.page-news .news-record {
  background: var(--c-paper);
  color: var(--news-card-ink);
  border-radius: var(--radius-m);
  overflow: hidden;
  transition: box-shadow .24s var(--ease), transform .24s var(--ease);
}

.page-news .news-record:nth-of-type(even) {
  background: var(--c-navy-2);
  color: var(--c-paper);
  border: 1px solid var(--line-gold-soft);
}

.page-news .news-record[open] {
  transform: translateX(2px);
}

.page-news .news-record summary {
  display: grid;
  gap: 9px;
  padding: 18px clamp(18px, 3vw, 26px);
  list-style: none;
  cursor: pointer;
}

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

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

.page-news .record-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .news-record .meta {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .06em;
  color: var(--c-vermilion);
}

.page-news .news-record:nth-of-type(even) .meta {
  color: var(--c-gold-2);
}

.page-news .news-record .tag {
  padding: 3px 8px;
  border-radius: var(--radius-s);
  border: 1px solid rgba(13, 23, 38, .16);
  background: rgba(13, 23, 38, .05);
  color: var(--c-navy);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
}

.page-news .news-record:nth-of-type(even) .tag {
  border-color: var(--line-gold);
  background: rgba(201, 162, 74, .08);
  color: var(--c-gold-2);
}

.page-news .record-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 1.2rem, 22px);
  line-height: 1.46;
  letter-spacing: -.005em;
}

.page-news .news-record summary::after {
  content: "展开记录 ↓";
  justify-self: start;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--c-vermilion);
}

.page-news .news-record:nth-of-type(even) summary::after {
  color: var(--c-gold);
}

.page-news .news-record[open] summary::after {
  content: "收起 ↑";
}

.page-news .record-body {
  margin: 0;
  padding: 14px clamp(18px, 3vw, 26px) 22px;
  border-top: 1px solid rgba(13, 23, 38, .12);
  font-size: var(--step-0);
  line-height: 1.82;
}

.page-news .news-record:nth-of-type(even) .record-body {
  border-top-color: var(--line-gold-soft);
}

.page-news .record-body p {
  margin: 0;
}

/* ---------- 版本迭代时间轴 ---------- */
.page-news .version-track {
  position: relative;
  margin-top: clamp(26px, 3.4vw, 36px);
  padding-left: 30px;
}

.page-news .version-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--c-gold), rgba(201, 162, 74, .12));
}

.page-news .version-node {
  position: relative;
  padding-bottom: 30px;
}

.page-news .version-node:last-child {
  padding-bottom: 0;
}

.page-news .version-node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--c-gold);
  background: var(--c-navy);
}

.page-news .version-node--current::before {
  background: var(--c-vermilion);
  border-color: var(--c-vermilion-2);
  box-shadow: 0 0 0 4px rgba(200, 50, 43, .18);
}

.page-news .version-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-news .version-badge {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--c-gold);
  color: var(--c-navy);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .1em;
}

.page-news .version-node--current .version-badge {
  background: var(--c-vermilion);
  color: var(--c-paper-2);
}

.page-news .version-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 1.22rem, 22px);
  color: var(--c-paper-2);
}

.page-news .version-body {
  margin: 10px 0 0;
  max-width: 62ch;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.8;
}

.page-news .version-note {
  margin-top: clamp(26px, 3.4vw, 36px);
  padding: 18px clamp(16px, 3vw, 24px) 20px;
  border-left: 2px solid var(--c-gold);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: rgba(244, 233, 216, .05);
}

.page-news .version-note h3 {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--step-0);
  letter-spacing: .02em;
  color: var(--c-gold-2);
}

.page-news .version-note ul {
  margin: 0;
  padding-left: 18px;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.82;
}

.page-news .version-note li + li {
  margin-top: 6px;
}

/* ---------- 手机端登录异常专题 ---------- */
.page-news .mobile-stats {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 3vw, 30px);
}

.page-news .mobile-stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-m);
  border: 1px solid rgba(200, 50, 43, .34);
  background: rgba(200, 50, 43, .1);
}

.page-news .mobile-stat:nth-child(2) {
  border-color: var(--line-gold);
  background: rgba(201, 162, 74, .1);
}

.page-news .mobile-stat-num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 2rem, 34px);
  line-height: 1;
  color: var(--c-paper-2);
}

.page-news .mobile-stat:nth-child(2) .mobile-stat-num {
  color: var(--c-gold-2);
}

.page-news .mobile-stat-label {
  font-size: var(--step--1);
  line-height: 1.62;
  color: var(--paper-72);
}

.page-news .mobile-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3vw, 30px);
}

.page-news .device-card {
  padding: 20px 18px 22px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-gold-soft);
  background: linear-gradient(162deg, rgba(244, 233, 216, .075), rgba(244, 233, 216, .015));
}

.page-news .device-card h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(18px, 1.18rem, 21px);
  color: var(--c-gold-2);
}

.page-news .device-card .meta {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-news .device-card p:last-child {
  margin: 12px 0 0;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.78;
}

/* ---------- 兼容问题索引变化 ---------- */
.page-news .change-list {
  list-style: none;
  margin: clamp(24px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-news .change-item {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .change-item:last-child {
  border-bottom: 1px solid var(--line-gold-soft);
}

.page-news .change-key {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .12em;
  color: var(--c-gold);
}

.page-news .change-desc {
  margin: 0;
  color: var(--paper-82);
  font-size: var(--step-0);
  line-height: 1.8;
}

/* ---------- 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 3vw, 32px);
}

.page-news .series-card {
  padding: 20px 18px 22px;
  border: 1px solid var(--line-gold-soft);
  border-left-width: 3px;
  border-left-color: var(--c-vermilion);
  border-radius: var(--radius-m);
  background: rgba(244, 233, 216, .055);
}

.page-news .series-card:nth-child(3n + 2) {
  border-left-color: var(--c-gold);
}

.page-news .series-card:nth-child(3n) {
  border-left-color: var(--c-jade);
}

.page-news .series-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 1.16rem, 21px);
  color: var(--c-paper-2);
}

.page-news .series-card .meta {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-news .series-card p:last-child {
  margin: 0;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.76;
}

/* ---------- 回溯与入口 ---------- */
.page-news .lookback-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3vw, 32px);
}

.page-news .lookback-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  border-radius: var(--radius-m);
  border: 1px solid rgba(200, 50, 43, .3);
  background: linear-gradient(165deg, rgba(200, 50, 43, .13), rgba(13, 23, 38, .25));
}

.page-news .lookback-card:nth-child(even) {
  border-color: var(--line-gold);
  background: linear-gradient(165deg, rgba(201, 162, 74, .13), rgba(13, 23, 38, .25));
}

.page-news .lookback-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 1.16rem, 21px);
  color: var(--c-paper-2);
}

.page-news .lookback-card p {
  flex: 1;
  margin: 0;
  color: var(--paper-72);
  font-size: var(--step-0);
  line-height: 1.78;
}

.page-news .lookback-card .btn {
  align-self: flex-start;
}

.page-news .news-tail {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: clamp(30px, 4vw, 42px);
  padding-top: 22px;
  border-top: 1px solid var(--line-gold-soft);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .06em;
}

.page-news .news-tail a {
  color: var(--c-gold-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease);
}

.page-news .news-tail a:hover,
.page-news .news-tail a:focus-visible {
  border-bottom-color: var(--c-gold-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .mobile-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 680px) {
  .page-news .change-item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-news .mobile-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-news .lookback-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-rail-inner {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 1080px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .mobile-grid {
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-record,
  .page-news .rail-index a,
  .page-news .news-tail a {
    transition: none;
  }

  .page-news .news-record[open] {
    transform: none;
  }
}
<<<END>>>