.page-news {
  --tn-line-soft: rgba(11, 13, 16, 0.14);
  --tn-line-inv: rgba(245, 241, 232, 0.2);
  --tn-gap: clamp(20px, 3vw, 40px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-news .tn-top {
  padding: clamp(14px, 2vw, 22px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-news .tn-hero {
  position: relative;
  margin-top: clamp(12px, 2vw, 20px);
  padding: clamp(30px, 5vw, 60px) 0 clamp(36px, 5vw, 72px);
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(139, 144, 152, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(139, 144, 152, 0.14) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  color: var(--paper);
}

.page-news .tn-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(90deg,
    var(--cinnabar) 0 34%,
    var(--bronze) 34% 58%,
    var(--tibet-blue) 58% 100%);
}

.page-news .tn-hero__inner {
  display: grid;
  gap: clamp(14px, 2.4vw, 26px);
}

.page-news .tn-hero .eyebrow {
  color: var(--bronze);
}

.page-news .tn-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 10vw, 132px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--paper);
  word-break: keep-all;
}

.page-news .tn-hero__foot {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(12px, 2vw, 22px);
}

.page-news .tn-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.82);
}

.page-news .tn-hero__marks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(18px, 3vw, 34px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .tn-hero__marks li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 14px;
  border-left: 3px solid var(--cinnabar);
}

.page-news .tn-hero__mark-no {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--bronze);
}

.page-news .tn-hero__mark-txt {
  font-size: 13px;
  color: rgba(245, 241, 232, 0.68);
}

.page-news .tn-hero__media {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 2px solid var(--bronze);
  box-shadow: 10px 10px 0 var(--cinnabar-deep);
}

.page-news .tn-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

@media (min-width: 860px) {
  .page-news .tn-hero__foot {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
}

/* ---------- 节奏 ---------- */
.page-news .tn-rhythm {
  padding: clamp(38px, 6vw, 78px) 0 clamp(30px, 4vw, 54px);
  background: var(--paper);
}

.page-news .tn-rhythm__grid {
  display: grid;
  gap: var(--tn-gap);
  align-items: start;
}

.page-news .tn-head {
  max-width: 60ch;
}

.page-news .tn-h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.2vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .tn-note {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .tn-rhythm__media {
  margin: 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  background: var(--paper);
}

.page-news .tn-rhythm__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

@media (min-width: 940px) {
  .page-news .tn-rhythm__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(32px, 5vw, 68px);
  }
}

.page-news .tn-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--tn-line-soft);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .tn-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--paper);
}

.page-news .tn-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
  line-height: 1.1;
}

.page-news .tn-stat__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}

@media (min-width: 760px) {
  .page-news .tn-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .tn-stat {
    padding: 22px 20px;
  }
}

/* ---------- 归档主区 ---------- */
.page-news .tn-archive {
  padding: clamp(38px, 6vw, 76px) 0 clamp(42px, 6vw, 84px);
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(139, 144, 152, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(139, 144, 152, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-news .tn-archive__grid {
  display: grid;
  gap: clamp(26px, 3vw, 44px);
}

@media (min-width: 1040px) {
  .page-news .tn-archive__grid {
    grid-template-columns: minmax(250px, 306px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(36px, 4vw, 66px);
  }
}

/* 左侧粘性分类栏 */
.page-news .tn-rail {
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .tn-rail__inner {
  padding: 18px 18px 20px;
}

.page-news .tn-rail__heading {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey);
}

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

.page-news .tn-cat {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  gap: 4px 10px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--tn-line-soft);
}

.page-news .tn-cat:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-news .tn-cat__dot {
  width: 9px;
  height: 9px;
  background: var(--cinnabar);
  transform: rotate(45deg) translateY(1px);
}

.page-news .tn-cat__dot--blue { background: var(--tibet-blue); }
.page-news .tn-cat__dot--gold { background: var(--bronze); }
.page-news .tn-cat__dot--teal { background: var(--teal); }

.page-news .tn-cat__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .tn-cat__count {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--bronze);
}

.page-news .tn-cat__desc {
  grid-column: 2 / -1;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.page-news .tn-rail__media {
  margin: 0;
  border-top: 2px solid var(--ink);
}

.page-news .tn-rail__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

@media (min-width: 1040px) {
  .page-news .tn-rail {
    position: sticky;
    top: 20px;
  }
}

/* 右侧条目流 */
.page-news .tn-feed__head {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-news .tn-feed__list {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 2px solid rgba(11, 13, 16, 0.18);
}

.page-news .tn-entry {
  position: relative;
}

.page-news .tn-entry::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 22px;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--bronze);
  transform: rotate(45deg);
}

.page-news .tn-entry__box {
  border-bottom: 1px solid var(--tn-line-soft);
}

.page-news .tn-entry__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 16px 12px 16px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color 180ms var(--ease);
}

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

.page-news .tn-entry__summary:hover {
  background: rgba(200, 54, 43, 0.06);
}

.page-news .tn-entry__summary:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: -3px;
}

.page-news .tn-entry__no {
  min-width: 34px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--bronze);
}

.page-news .tn-entry__title {
  flex: 1 1 240px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .tn-entry__more {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grey);
}

.page-news .tn-entry__box[open] .tn-entry__summary {
  background: rgba(185, 138, 46, 0.1);
}

.page-news .tn-entry__box[open] .tn-entry__more {
  color: var(--cinnabar);
}

.page-news .tn-entry__body {
  padding: 0 12px 22px 0;
}

.page-news .tn-entry__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .tn-entry__body .tn-entry__impact {
  margin-bottom: 0;
  padding-left: 12px;
  border-left: 3px solid var(--bronze);
  font-size: 14px;
  color: var(--ink);
}

/* ---------- 系列回顾 ---------- */
.page-news .tn-series {
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--paper);
}

.page-news .tn-series__media {
  margin: clamp(24px, 3vw, 38px) 0 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  background: var(--paper);
}

.page-news .tn-series__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-news .tn-tabs {
  margin-top: clamp(26px, 3.4vw, 44px);
}

.page-news .tn-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .tn-tab {
  appearance: none;
  padding: 9px 16px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 160ms var(--ease), color 160ms var(--ease);
}

.page-news .tn-tab:hover {
  background: rgba(11, 13, 16, 0.06);
}

.page-news .tn-tab[aria-selected="true"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar-deep);
  color: var(--paper);
  box-shadow: 4px 4px 0 var(--cinnabar-deep);
}

.page-news .tn-tab:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 2px;
}

.page-news .tn-tabpanel {
  margin-top: 14px;
  padding: clamp(20px, 3vw, 32px);
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .tn-tabpanel:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 2px;
}

.page-news .tn-phase__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--bronze);
}

.page-news .tn-phase__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.3;
  color: var(--ink);
}

.page-news .tn-phase__text {
  max-width: 56ch;
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .tn-phase__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .tn-phase__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .tn-phase__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 2px;
  background: var(--cinnabar);
}

/* ---------- 查阅与反馈 ---------- */
.page-news .tn-watch {
  padding: clamp(38px, 6vw, 78px) 0;
  background: var(--paper);
  border-top: 2px solid var(--ink);
}

.page-news .tn-watch__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

@media (min-width: 900px) {
  .page-news .tn-watch__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }
}

.page-news .tn-card {
  padding: clamp(22px, 3vw, 34px);
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .tn-card--warm {
  border-top: 6px solid var(--bronze);
}

.page-news .tn-card--ink {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: 8px 8px 0 var(--cinnabar-deep);
}

.page-news .tn-card .index-num {
  display: block;
  margin: 0 0 12px;
}

.page-news .tn-card__title {
  margin-top: 0;
}

.page-news .tn-card--ink .tn-card__title {
  color: var(--paper);
}

.page-news .tn-card__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .tn-card--ink .tn-card__text {
  color: rgba(245, 241, 232, 0.8);
}

.page-news .tn-card__meta {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--bronze);
  background: rgba(185, 138, 46, 0.13);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: rgba(245, 241, 232, 0.92);
}

.page-news .tn-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 0;
}

.page-news .tn-bullets {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .tn-bullets li {
  position: relative;
  padding-left: 22px;
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .tn-bullets li:first-child {
  margin-top: 0;
}

.page-news .tn-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 12px;
  height: 2px;
  background: var(--cinnabar);
}

.page-news .tn-bullets strong {
  color: var(--ink);
}

.page-news .tn-card--ink .tn-bullets li {
  color: rgba(245, 241, 232, 0.78);
}

.page-news .tn-card--ink .tn-bullets li::before {
  background: var(--bronze);
}

.page-news .tn-card--ink .tn-bullets strong {
  color: var(--paper);
}

/* ---------- 相关页面 ---------- */
.page-news .tn-more {
  padding: clamp(30px, 4vw, 54px) 0 clamp(40px, 5vw, 68px);
  background: var(--tibet-blue);
  color: var(--paper);
}

.page-news .tn-more__inner {
  display: grid;
  gap: 18px;
}

.page-news .tn-more__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--banner-yellow);
}

.page-news .tn-more__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--tn-line-inv);
}

.page-news .tn-more__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--tn-line-inv);
  color: var(--paper);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-news .tn-more__link:hover {
  color: var(--banner-yellow);
  padding-left: 8px;
}

.page-news .tn-more__link:focus-visible {
  outline: 3px solid var(--banner-yellow);
  outline-offset: 2px;
}

@media (min-width: 780px) {
  .page-news .tn-more__inner {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
  .page-news .tn-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
  }
}

/* ---------- 回到顶部 ---------- */
.page-news .tn-backtop {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border: 2px solid var(--paper);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  box-shadow: 4px 4px 0 var(--cinnabar);
}

.page-news .tn-backtop:hover {
  background: var(--cinnabar);
  border-color: var(--cinnabar-deep);
}

.page-news .tn-backtop:focus-visible {
  outline: 3px solid var(--banner-yellow);
  outline-offset: 2px;
}

.page-news .tn-backtop__arrow {
  font-size: 14px;
  line-height: 1;
}

@media (min-width: 900px) {
  .page-news .tn-backtop {
    right: 28px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tn-entry__summary,
  .page-news .tn-tab,
  .page-news .tn-more__link {
    transition: none;
  }
}