.page-news {
  --rail-w: 216px;
  display: block;
  background: var(--paper-50);
  color: var(--text-900);
  font-family: var(--font-sans);
  line-height: 1.75;
  padding-bottom: var(--s-56);
}

.page-news h1,
.page-news h2,
.page-news h3 {
  margin: 0;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-news p {
  margin: 0;
}

.page-news ul,
.page-news ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news a {
  color: var(--cyan-600);
  text-decoration: none;
  border-bottom: 1px solid rgba(12, 140, 121, .35);
}

.page-news a:hover,
.page-news a:focus-visible {
  border-bottom-color: var(--cyan-400);
}

.page-news .mono {
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

/* ---------- 首屏框景 ---------- */
.page-news .news-hero {
  background:
    radial-gradient(120% 110% at 10% -10%, var(--ink-800) 0%, var(--ink-950) 62%),
    var(--ink-950);
  color: var(--text-invert);
  padding: var(--s-28) 0 var(--s-40);
}

.page-news .news-hero .breadcrumb--ink {
  color: rgba(232, 240, 247, .68);
  font-size: var(--s-14);
}

.page-news .news-hero .breadcrumb--ink a {
  color: var(--cyan-200);
  border-bottom-color: transparent;
}

.page-news .news-hero__frame {
  position: relative;
  margin-top: var(--s-20);
  padding: var(--s-28) var(--s-20) var(--s-20);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-news .news-hero__frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: var(--s-20);
  right: var(--s-20);
  height: 6px;
  background-image: repeating-linear-gradient(90deg, rgba(155, 243, 228, .55) 0 1px, transparent 1px 22px);
  pointer-events: none;
}

.page-news .news-hero__kicker {
  font-size: 12px;
  color: var(--cyan-200);
  letter-spacing: .12em;
}

.page-news .news-hero__title {
  margin-top: var(--s-14);
  font-size: clamp(26px, 5.4vw, 46px);
  font-weight: 800;
  max-width: 22ch;
}

.page-news .news-hero__lede {
  margin-top: var(--s-16);
  max-width: 62ch;
  font-size: 16px;
  color: rgba(232, 240, 247, .82);
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: var(--s-28);
  background: var(--hair-ink);
  border: 1px solid var(--hair-ink);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-news .news-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--s-14) var(--s-16);
  background: rgba(8, 19, 31, .78);
}

.page-news .news-hero__num {
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan-400);
}

.page-news .news-hero__label {
  font-size: var(--s-14);
  color: rgba(232, 240, 247, .7);
}

/* ---------- 主体栅格 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-28);
  padding-top: var(--s-40);
}

.page-news .chapter-rail {
  display: flex;
  gap: var(--s-12);
  overflow-x: auto;
  padding-bottom: var(--s-12);
  border-bottom: 1px solid var(--paper-200);
  scrollbar-width: none;
}

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

.page-news .chapter-rail__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--paper-200);
  border-radius: 999px;
  color: var(--text-500);
  font-size: var(--s-14);
  white-space: nowrap;
  background: #fff;
  transition: color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-news .chapter-rail__link:hover,
.page-news .chapter-rail__link:focus-visible {
  color: var(--text-900);
  border-color: var(--cyan-200);
}

.page-news .chapter-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-600);
}

.page-news .chapter-rail__link.is-active {
  color: var(--text-900);
  border-color: var(--cyan-400);
  background: rgba(47, 227, 196, .14);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  padding: var(--s-28) 0;
  border-top: 1px solid var(--paper-200);
  scroll-margin-top: 96px;
}

.page-news .news-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .news-section .section__head {
  display: flex;
  align-items: baseline;
  gap: var(--s-12);
  margin-bottom: var(--s-16);
}

.page-news .news-section .section__num {
  font-family: var(--font-mono);
  font-size: var(--s-14);
  font-weight: 600;
  color: var(--orange-500);
  letter-spacing: .1em;
}

.page-news .news-section .section__title {
  font-size: clamp(20px, 3.6vw, 28px);
  font-weight: 800;
}

.page-news .section__lede {
  max-width: 64ch;
  color: var(--text-500);
  font-size: 15px;
}

.page-news .news-note {
  margin-top: var(--s-20);
  padding-top: var(--s-12);
  border-top: 1px solid var(--hair-ink);
  font-size: var(--s-14);
  color: rgba(232, 240, 247, .78);
}

.page-news .news-note a {
  color: var(--cyan-200);
  border-bottom-color: transparent;
}

/* ---------- 图片容器 ---------- */
.page-news .media-frame {
  margin: 0;
  border: 1px solid var(--paper-200);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-200);
}

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

.page-news .news-figure {
  margin-top: var(--s-20);
}

/* ---------- 01 本期待读 ---------- */
.page-news .lead-story {
  margin-top: var(--s-20);
  padding: var(--s-20);
  border: 1px solid var(--paper-200);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff 0%, var(--paper-50) 100%);
}

.page-news .lead-story__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-12);
}

.page-news .lead-story__meta .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-news .lead-story__read {
  font-size: 12px;
  color: var(--text-500);
}

.page-news .lead-story__title {
  margin-top: var(--s-16);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 800;
}

.page-news .lead-story__excerpt {
  margin-top: var(--s-12);
  max-width: 64ch;
  font-size: 15px;
  color: var(--text-900);
}

.page-news .lead-story__points {
  display: grid;
  gap: var(--s-12);
  margin-top: var(--s-20);
  padding-top: var(--s-16);
  border-top: 1px solid var(--paper-200);
}

.page-news .lead-story__points li {
  position: relative;
  padding-left: var(--s-20);
  font-size: 15px;
  color: var(--text-500);
}

.page-news .lead-story__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 1px;
  background: var(--cyan-400);
}

.page-news .lead-story__foot {
  margin-top: var(--s-20);
  font-size: 13px;
  color: var(--text-500);
}

.page-news .lead-story__foot a {
  color: var(--cyan-600);
}

/* ---------- 02 归档 ---------- */
.page-news .archive {
  display: grid;
  gap: var(--s-16);
  margin-top: var(--s-20);
}

.page-news .archive__item {
  display: grid;
  gap: var(--s-12);
}

.page-news .archive__scale {
  display: flex;
  align-items: center;
  gap: var(--s-12);
}

.page-news .archive__month {
  font-size: 15px;
  color: var(--cyan-600);
}

.page-news .archive__item--current .archive__month {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--cyan-400);
  border-radius: 999px;
  background: rgba(47, 227, 196, .16);
  font-size: 16px;
  color: var(--cyan-600);
}

.page-news .archive__no {
  font-size: 12px;
  color: var(--text-500);
}

.page-news .archive__panel {
  border: 1px solid var(--paper-200);
  border-radius: var(--radius);
  background: var(--paper-50);
  overflow: hidden;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-news .archive__panel[open] {
  background: #fff;
  border-color: var(--cyan-200);
}

.page-news .archive__summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--s-12);
  padding: var(--s-16);
  cursor: pointer;
  list-style: none;
}

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

.page-news .archive__summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan-600);
  border-bottom: 2px solid var(--cyan-600);
  transform: rotate(45deg);
  transition: transform .2s var(--ease);
}

.page-news .archive__panel[open] .archive__summary::after {
  transform: rotate(-135deg);
}

.page-news .archive__theme {
  font-size: 16px;
  font-weight: 700;
}

.page-news .archive__meta {
  font-size: 12px;
  color: var(--text-500);
}

.page-news .archive__list {
  display: grid;
  gap: var(--s-12);
  padding: 0 var(--s-16) var(--s-20);
}

.page-news .archive__list li {
  position: relative;
  padding-left: var(--s-20);
  font-size: 15px;
  color: var(--text-900);
}

.page-news .archive__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 1px;
  background: var(--orange-500);
}

/* ---------- 03 版本动态 ---------- */
.page-news .news-section--ink {
  margin: var(--s-28) 0;
  padding: var(--s-28) var(--s-20);
  border-top: 0;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--ink-800) 0%, var(--ink-950) 100%);
  color: var(--text-invert);
}

.page-news .news-section--ink .section__title {
  color: var(--text-invert);
}

.page-news .news-section--ink .section__lede {
  color: rgba(232, 240, 247, .74);
}

.page-news .log {
  display: grid;
  gap: 1px;
  margin-top: var(--s-20);
  background: var(--hair-ink);
  border: 1px solid var(--hair-ink);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-news .log__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-12);
  padding: var(--s-16);
  background: rgba(8, 19, 31, .88);
  transition: background .2s var(--ease);
}

.page-news .log__row:hover {
  background: rgba(16, 42, 68, .96);
}

.page-news .log__time {
  font-size: 13px;
  color: var(--cyan-200);
}

.page-news .log__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-invert);
}

.page-news .log__desc {
  margin-top: 6px;
  max-width: 62ch;
  font-size: 15px;
  color: rgba(232, 240, 247, .76);
}

.page-news .log__status {
  font-size: 12px;
  color: var(--orange-500);
}

.page-news .log__row:hover .log__status {
  color: var(--orange-100);
}

.page-news .log__fig {
  grid-column: 1 / -1;
  margin: 0;
  border-color: var(--hair-ink);
  background: var(--ink-800);
}

/* ---------- 04 长线专题 ---------- */
.page-news .topics {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-16);
  margin-top: var(--s-20);
}

.page-news .topic {
  padding: var(--s-20);
  border: 1px solid var(--paper-200);
  border-radius: var(--radius);
  background: #fff;
}

.page-news .topic__num {
  font-size: 12px;
  color: var(--cyan-600);
}

.page-news .topic__title {
  margin-top: var(--s-12);
  font-size: 18px;
  font-weight: 700;
}

.page-news .topic__text {
  margin-top: var(--s-12);
  font-size: 15px;
  color: var(--text-500);
}

.page-news .topic__meta {
  display: inline-block;
  margin-top: var(--s-16);
  padding-top: var(--s-12);
  border-top: 1px solid var(--paper-200);
  font-size: 12px;
  color: var(--text-500);
}

.page-news .topic--media {
  background: linear-gradient(180deg, #fff 0%, var(--paper-50) 100%);
}

.page-news .topic__fig {
  margin-top: var(--s-16);
}

/* ---------- 05 更新节奏 ---------- */
.page-news .news-section--tint {
  background: #fff;
  border-top-color: var(--paper-200);
}

.page-news .cadence-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-20);
  margin-top: var(--s-20);
}

.page-news .cadence {
  display: grid;
  gap: 1px;
  background: var(--paper-200);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-news .cadence__item {
  display: grid;
  gap: 6px;
  padding: var(--s-16);
  background: var(--paper-50);
}

.page-news .cadence__when {
  font-size: 14px;
  color: var(--orange-700);
}

.page-news .cadence__text {
  font-size: 15px;
  color: var(--text-900);
}

.page-news .cadence__fig {
  border-color: var(--paper-200);
}

/* ---------- 06 反馈处理 ---------- */
.page-news .flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-16);
  margin-top: var(--s-20);
}

.page-news .flow__step {
  position: relative;
  padding: var(--s-20) var(--s-16) var(--s-16);
  border: 1px solid var(--paper-200);
  border-radius: var(--radius);
  background: #fff;
}

.page-news .flow__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--s-16);
  width: 34px;
  height: 2px;
  background: var(--cyan-400);
}

.page-news .flow__num {
  font-size: 12px;
  color: var(--orange-500);
}

.page-news .flow__title {
  margin-top: 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-news .flow__text {
  margin-top: var(--s-12);
  font-size: 15px;
  color: var(--text-500);
}

/* ---------- 反馈入口 ---------- */
.page-news .news-cta {
  display: grid;
  gap: var(--s-20);
  margin-top: var(--s-28);
  padding: var(--s-20);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--ink-800) 0%, var(--ink-950) 100%);
  color: var(--text-invert);
}

.page-news .news-cta__title {
  font-size: 19px;
  font-weight: 800;
}

.page-news .news-cta__text p {
  margin-top: var(--s-12);
  font-size: 15px;
  color: rgba(232, 240, 247, .78);
}

.page-news .news-cta__text a {
  color: var(--cyan-200);
  border-bottom-color: transparent;
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-12);
}

.page-news .news-cta__mail {
  font-size: 13px;
  color: var(--cyan-200);
  overflow-wrap: anywhere;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 640px) {
  .page-news .news-hero {
    padding: var(--s-40) 0 var(--s-56);
  }

  .page-news .news-hero__frame {
    padding: var(--s-40);
  }

  .page-news .news-hero__frame::before {
    left: var(--s-40);
    right: var(--s-40);
  }

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

  .page-news .cadence__item {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: baseline;
    gap: var(--s-20);
  }
}

@media (min-width: 860px) {
  .page-news .topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .topic--media {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: var(--s-28);
    align-items: center;
  }

  .page-news .topic__fig {
    margin-top: 0;
  }

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

  .page-news .news-cta {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: center;
  }

  .page-news .news-cta__actions {
    justify-content: flex-end;
  }

  .page-news .cadence-wrap {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: var(--s-40);
    align-items: start;
  }

  .page-news .chapter-rail {
    position: sticky;
    top: 96px;
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 var(--s-16);
    border-bottom: 0;
    border-left: 1px solid var(--paper-200);
  }

  .page-news .chapter-rail__link {
    border: 0;
    border-radius: 0;
    padding: 8px 0;
    background: transparent;
    font-size: 15px;
  }

  .page-news .chapter-rail__link:hover,
  .page-news .chapter-rail__link:focus-visible {
    border-color: transparent;
    transform: translateX(4px);
  }

  .page-news .chapter-rail__link.is-active {
    background: transparent;
    transform: translateX(4px);
  }

  .page-news .archive__item {
    grid-template-columns: 138px minmax(0, 1fr);
    gap: var(--s-20);
    align-items: start;
  }

  .page-news .archive__scale {
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    padding-right: var(--s-16);
    border-right: 1px solid var(--paper-200);
    padding-top: var(--s-16);
  }

  .page-news .log__row {
    grid-template-columns: 104px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: var(--s-20);
  }

  .page-news .log__row--feature {
    grid-template-columns: 104px minmax(0, 1fr);
  }

  .page-news .log__fig {
    grid-column: 2;
    margin-top: var(--s-16);
  }

  .page-news .section__lede {
    font-size: 16px;
  }
}

@media (min-width: 1100px) {
  .page-news .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-section--ink {
    padding: var(--s-40);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .chapter-rail__link,
  .page-news .archive__panel,
  .page-news .archive__summary::after,
  .page-news .log__row {
    transition: none;
  }
}