.page-news {
  --tl-drop: 34px;
  --note-accent: var(--coral);
}

.page-news > section + section,
.page-news > section {
  border-top: 1px solid var(--line);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  background:
    radial-gradient(circle at 84% 8%, rgba(200, 255, 61, 0.09), transparent 46%),
    radial-gradient(circle at 6% 96%, rgba(142, 127, 184, 0.14), transparent 52%),
    linear-gradient(180deg, var(--bg-deep), var(--bg-base));
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__inner {
  padding-top: 32px;
  padding-bottom: 8px;
}

.page-news .news-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(32px, 7.4vw, 76px);
  line-height: 1.06;
  margin: 12px 0 18px;
  max-width: 18ch;
  color: var(--ink);
}

.page-news .news-hero .lead {
  max-width: 62ch;
  font-size: var(--fs-lead);
  line-height: 1.8;
  color: var(--ink);
  margin: 0;
}

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  list-style: none;
  margin: 30px 0 4px;
  padding: 22px 0 0;
  border-top: 1px dashed var(--line);
}

.page-news .news-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-news .news-hero__stats .stat-num {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-news .news-hero__stats li > span:last-child {
  font-size: 13px;
  color: var(--muted);
}

.page-news .news-hero__banner {
  margin-top: 26px;
  position: relative;
}

.page-news .news-hero__banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 24, 43, 0.85), rgba(8, 24, 43, 0) 55%);
  pointer-events: none;
}

.page-news .news-hero__banner img {
  display: block;
  width: 100%;
  height: clamp(170px, 30vw, 400px);
  object-fit: cover;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- 通用区块节奏 ---------- */
.page-news .news-index,
.page-news .news-timeline,
.page-news .news-topics,
.page-news .news-versions,
.page-news .news-notes,
.page-news .news-submit {
  padding: 52px 0;
}

.page-news .news-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 28px;
}

.page-news h2 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.18;
  margin: 8px 0 16px;
  color: var(--ink);
}

.page-news .news-sec-head h2 {
  margin-bottom: 6px;
}

/* ---------- 本期索引 ---------- */
.page-news .news-index__hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 8px;
}

.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 26px;
}

.page-news .news-filters__chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(142, 127, 184, 0.14);
  color: var(--ink);
  font-size: 13px;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-news .news-filters__chip:hover,
.page-news .news-filters__chip:focus-visible {
  border-color: var(--lime);
  background: var(--lime-dim);
  color: var(--lime);
}

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

.page-news .news-index__row {
  display: grid;
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-index__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mauve);
}

.page-news .news-index__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-index__sum {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 时间轴 ---------- */
.page-news .news-timeline__hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 8px;
}

.page-news .news-timeline__lead,
.page-news .news-topics__lead,
.page-news .news-notes__lead {
  max-width: 68ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 30px;
}

.page-news .tl__phase {
  position: relative;
}

.page-news .tl__phase + .tl__phase {
  margin-top: 46px;
}

.page-news .tl__phase-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: 14px;
  margin-bottom: 26px;
  border-bottom: 1px dashed var(--line);
}

.page-news .tl__phase-label {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--coral);
  margin: 0;
}

.page-news .tl__phase-count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lime);
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(200, 255, 61, 0.08);
}

.page-news .tl__phase-desc {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.page-news .tl__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .tl__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 0 16px;
  padding-bottom: var(--tl-drop);
}

.page-news .tl__rail {
  position: relative;
  display: flex;
  justify-content: center;
}

.page-news .tl__rail::after {
  content: "";
  position: absolute;
  top: 24px;
  bottom: calc(-1 * var(--tl-drop));
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: var(--line);
}

.page-news .tl__list > .tl__item:last-child .tl__rail::after {
  bottom: 0;
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-news .tl__node {
  width: 11px;
  height: 11px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 2px solid var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 107, 74, 0.12);
  position: relative;
  z-index: 1;
}

.page-news .tl__thumb {
  margin: 0 0 16px;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-deep);
}

.page-news .tl__thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 320ms var(--ease), filter var(--t-fast) var(--ease);
}

.page-news .tl__item:hover .tl__thumb img,
.page-news .tl__item:focus-within .tl__thumb img {
  transform: scale(1.05);
}

.page-news .tl__item:hover .tl__thumb,
.page-news .tl__item:focus-within .tl__thumb {
  border-color: var(--lime);
}

.page-news .tl__body {
  min-width: 0;
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
}

.page-news .tl__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.page-news .tl__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mauve);
}

.page-news .tl__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.35;
  margin: 0 0 12px;
  color: var(--ink);
}

.page-news .tl__facts {
  display: grid;
  gap: 8px 22px;
  margin: 0 0 14px;
}

.page-news .tl__facts > div {
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.page-news .tl__facts dt {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mauve);
  padding-top: 1px;
}

.page-news .tl__facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-news .tl__more {
  border-top: 1px dashed var(--line);
  padding-top: 10px;
}

.page-news .tl__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--lime);
  transition: color var(--t-fast) var(--ease);
}

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

.page-news .tl__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-news .tl__more[open] summary::after {
  content: "\2212";
}

.page-news .tl__more summary:hover {
  color: var(--paper);
}

.page-news .tl__more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 66ch;
}

/* ---------- 三个专题 ---------- */
.page-news .topics {
  display: grid;
  gap: 22px;
}

.page-news .topic {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-deep));
  transition: border-color var(--t-fast) var(--ease), transform var(--t-mid) var(--ease);
}

.page-news .topic:hover {
  border-color: var(--lime);
  transform: translateY(-3px);
}

.page-news .topic__cover {
  margin: 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-news .topic__cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 400ms var(--ease);
}

.page-news .topic:hover .topic__cover img {
  transform: scale(1.03);
}

.page-news .topic__body {
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .topic__freq {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lime);
  text-transform: uppercase;
}

.page-news .topic__body h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 23px);
  line-height: 1.3;
  margin: 0;
  color: var(--ink);
}

.page-news .topic__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .topic__angle {
  font-size: 13px !important;
  color: var(--muted) !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

/* ---------- 版本迭代 ---------- */
.page-news .news-split {
  display: grid;
  gap: 30px;
}

.page-news .news-split__main p {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink);
  max-width: 66ch;
}

.page-news .ver-table-wrap {
  overflow-x: auto;
  margin: 24px 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  -webkit-overflow-scrolling: touch;
}

.page-news .ver-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-news .ver-table th,
.page-news .ver-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-news .ver-table thead th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(27, 58, 92, 0.4);
  white-space: nowrap;
}

.page-news .ver-table tbody td {
  color: var(--ink);
}

.page-news .ver-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-news .ver-table tbody td:first-child {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--lime);
  white-space: nowrap;
}

.page-news .ver-table tbody tr:hover td {
  background: rgba(200, 255, 61, 0.05);
}

.page-news .news-versions__link {
  font-size: 14px !important;
  color: var(--muted) !important;
  line-height: 1.8;
}

.page-news .news-versions__link a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
}

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

.page-news .news-versions__fig {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-deep);
  align-self: start;
}

.page-news .news-versions__fig img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 400ms var(--ease);
}

.page-news .news-versions__fig:hover img {
  transform: scale(1.03);
}

/* ---------- 分类观察笔记 ---------- */
.page-news .notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-news .note {
  position: relative;
  padding: 22px 20px 22px 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--note-accent);
  border-radius: var(--radius);
  background: var(--bg-panel);
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-news .note:hover {
  border-color: var(--lime);
  border-left-color: var(--lime);
  background: var(--bg-deep);
}

.page-news .note__when {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mauve);
  margin-bottom: 8px;
}

.page-news .note__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.35;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-news .note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .note a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
}

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

/* ---------- 反馈入口 ---------- */
.page-news .news-submit {
  background:
    linear-gradient(180deg, var(--bg-base), var(--bg-deep));
}

.page-news .news-submit__inner {
  display: grid;
  gap: 28px;
}

.page-news .news-submit__text > p {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink);
  max-width: 62ch;
  margin: 0 0 18px;
}

.page-news .news-submit__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 62ch;
}

.page-news .news-submit__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .news-submit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--lime);
  border-radius: 50%;
}

.page-news .news-submit__card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-self: start;
}

.page-news .news-submit__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mauve);
  margin: 0;
}

.page-news .news-submit__mail {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--lime);
  margin: 0;
  word-break: break-all;
}

.page-news .news-submit__time {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .news-submit__card .btn + .btn {
  margin-top: 2px;
}

/* ---------- 锚点定位 ---------- */
.page-news #tl-01,
.page-news #tl-02,
.page-news #tl-03,
.page-news #tl-04,
.page-news #tl-05,
.page-news #tl-06,
.page-news #tl-07,
.page-news #timeline,
.page-news #topics,
.page-news #versions,
.page-news #notes,
.page-news #topic-smallscreen,
.page-news #topic-night,
.page-news #topic-search {
  scroll-margin-top: 90px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .news-index__row {
    grid-template-columns: 84px minmax(150px, 200px) minmax(0, 1fr);
    align-items: baseline;
    gap: 12px 20px;
  }

  .page-news .tl__facts {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-news .notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 860px) {
  .page-news .news-index,
  .page-news .news-timeline,
  .page-news .news-topics,
  .page-news .news-versions,
  .page-news .news-notes,
  .page-news .news-submit {
    padding: 78px 0;
  }

  .page-news .news-hero__inner {
    padding-top: 54px;
    padding-bottom: 12px;
  }

  .page-news .tl__item {
    grid-template-columns: 22px 250px minmax(0, 1fr);
    gap: 0 26px;
  }

  .page-news .tl__thumb {
    margin-bottom: 0;
  }

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

@media (min-width: 940px) {
  .page-news .topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
    align-items: start;
  }

  .page-news .topic--b {
    margin-top: 54px;
  }

  .page-news .topic--c {
    grid-column: 1 / -1;
    flex-direction: row;
  }

  .page-news .topic--c .topic__cover {
    flex: 1 1 46%;
    border-bottom: 0;
    border-right: 1px solid var(--line);
    display: flex;
  }

  .page-news .topic--c .topic__cover img {
    aspect-ratio: auto;
    height: 100%;
    min-height: 280px;
  }

  .page-news .topic--c .topic__body {
    flex: 1 1 54%;
    justify-content: center;
    padding: 30px 28px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-split {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .news-submit__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
    gap: 44px;
    align-items: start;
  }

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

@media (min-width: 1240px) {
  .page-news .news-hero h1 {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic:hover,
  .page-news .topic:hover .topic__cover img,
  .page-news .tl__item:hover .tl__thumb img,
  .page-news .news-versions__fig:hover img {
    transform: none;
  }
}