.page-news {
  --tn-gap: clamp(18px, 2.6vw, 32px);
  background: var(--bg);
  color: var(--text);
}

.page-news .tn-hero {
  position: relative;
  padding: calc(var(--header-h) + 26px) 0 clamp(48px, 7vw, 88px);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(53, 230, 212, .16), transparent 58%),
    radial-gradient(90% 70% at 4% 96%, rgba(255, 178, 94, .10), transparent 62%),
    var(--ink-950);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-news .tn-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(169, 184, 204, .05) 0 1px, transparent 1px 6px);
  opacity: .55;
}

.page-news .tn-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-news .tn-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-news .tn-issue {
  display: inline-block;
  margin: 0 0 18px;
  padding: 7px 16px;
  border: 1px solid rgba(53, 230, 212, .45);
  border-radius: var(--radius-pill);
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: .18em;
}

.page-news .tn-hero h1 {
  margin: 0;
  font-size: clamp(34px, 7.2vw, 74px);
  line-height: .98;
  letter-spacing: -.03em;
  font-weight: 900;
  color: var(--paper-050);
  max-width: 15ch;
}

.page-news .tn-h1-kicker {
  display: block;
  margin-bottom: 16px;
  font-size: clamp(13px, 1.6vw, 17px);
  font-weight: 600;
  letter-spacing: .34em;
  color: var(--cyan-400);
}

.page-news .tn-hero-copy .lead {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 42ch;
  color: var(--text-dim);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-news .tn-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .tn-jump a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-news .tn-jump a .mono {
  font-size: 10px;
  letter-spacing: .1em;
  color: rgba(169, 184, 204, .7);
}

.page-news .tn-jump a:hover,
.page-news .tn-jump a:focus-visible {
  color: var(--paper-050);
  border-color: var(--cyan-600);
  background: rgba(53, 230, 212, .08);
}

.page-news .tn-jump a:hover .mono {
  color: var(--cyan-400);
}

.page-news .tn-hero-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

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

.page-news .tn-hero-cap {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-dim);
}

.page-news .tn-vertical {
  display: none;
}

.page-news .tn-section {
  padding: clamp(52px, 8vw, 104px) 0;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-news .tn-section--panel {
  background: linear-gradient(180deg, var(--ink-850), var(--ink-950));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

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

.page-news .tn-head .eyebrow {
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: .2em;
  margin: 0 0 14px;
}

.page-news .tn-head h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 700;
}

.page-news .tn-head p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
  max-width: 46ch;
}

/* 首条大卡 */
.page-news .tn-feature {
  display: grid;
  margin-top: clamp(28px, 4vw, 44px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-news .tn-feature-media .img-frame {
  height: 100%;
  border-radius: 0;
}

.page-news .tn-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 14 / 9;
}

.page-news .tn-feature-body {
  padding: clamp(20px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(53, 230, 212, .10), transparent 62%),
    var(--surface);
}

.page-news .tn-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .tn-meta .mono {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-news .tn-feature-title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.22;
  letter-spacing: -.015em;
  font-weight: 700;
  color: var(--paper-050);
}

.page-news .tn-feature-body p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .tn-feature-foot {
  margin-top: 4px;
}

.page-news .tn-more {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--cyan-400);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 212, .35);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .tn-more:hover,
.page-news .tn-more:focus-visible {
  color: var(--paper-050);
  border-color: var(--amber-400);
}

/* 条目列表 */
.page-news .tn-list {
  display: grid;
  gap: var(--tn-gap);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-news .tn-item {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(165deg, rgba(12, 27, 46, .96), rgba(6, 17, 31, .96));
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-news .tn-item::before {
  content: "";
  position: absolute;
  left: clamp(18px, 2.4vw, 26px);
  top: 0;
  width: 42px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), transparent);
}

.page-news .tn-item:hover {
  border-color: rgba(53, 230, 212, .5);
}

.page-news .tn-item-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--paper-050);
}

.page-news .tn-item-text {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
}

.page-news .tn-item-foot {
  margin: auto 0 0;
}

/* 分类筛选 */
.page-news .tn-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(24px, 3.5vw, 36px);
}

.page-news .tn-filter {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 9px 18px;
  text-decoration: none;
  font-size: 13px;
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-news .tn-filter:hover,
.page-news .tn-filter:focus-visible {
  transform: translateY(-2px);
}

.page-news .tn-cats {
  margin-top: clamp(24px, 3.5vw, 38px);
  border-top: 1px solid var(--line);
}

.page-news .tn-cat {
  display: grid;
  gap: 16px;
  padding: clamp(26px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-news .tn-cat-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
}

.page-news .tn-cat-num {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  letter-spacing: -.02em;
}

.page-news .tn-cat-head h3 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-news .tn-cat-count {
  margin: 0;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-news .tn-cat-body {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-news .tn-cat-body p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.85;
  max-width: 44ch;
}

.page-news .tn-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  max-width: 46ch;
}

.page-news .tn-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-050);
}

.page-news .tn-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 1px;
  background: var(--cyan-600);
}

.page-news .tn-cat-body .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-news .tn-cat-img {
  border-radius: var(--radius-m);
}

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

.page-news .tn-cat--media .tn-cat-body {
  gap: 20px;
}

/* 阅读路径 */
.page-news .tn-paths {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3.5vw, 36px);
}

.page-news .tn-path {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(12, 27, 46, .62);
  overflow: hidden;
  transition: border-color .22s var(--ease);
}

.page-news .tn-path[open] {
  border-color: rgba(53, 230, 212, .45);
  background:
    radial-gradient(80% 90% at 100% 0%, rgba(255, 178, 94, .08), transparent 60%),
    rgba(12, 27, 46, .82);
}

.page-news .tn-path summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 16px clamp(16px, 2.4vw, 24px);
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper-050);
}

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

.page-news .tn-path summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan-400);
}

.page-news .tn-path[open] summary::after {
  content: "−";
  color: var(--amber-400);
}

.page-news .tn-path-num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-news .tn-path-label {
  font-size: 15px;
  line-height: 1.4;
}

.page-news .tn-path-steps {
  margin: 0;
  padding: 0 clamp(16px, 2.4vw, 24px) 20px;
  list-style: none;
  display: grid;
  gap: 12px;
  counter-reset: tnstep;
}

.page-news .tn-path-steps li {
  position: relative;
  padding-left: 16px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
  border-left: 1px solid var(--line-soft);
}

.page-news .tn-path-steps .mono {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cyan-600);
}

/* 更新节奏 */
.page-news .tn-updates-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .tn-updates h2 {
  margin: 0 0 18px;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 700;
  max-width: 20ch;
}

.page-news .tn-updates-grid > div > p {
  margin: 0;
  max-width: 48ch;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .tn-cadence {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .tn-cadence li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-050);
}

.page-news .tn-cadence-key {
  flex: 0 0 auto;
  min-width: 62px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(53, 230, 212, .12);
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: .06em;
}

.page-news .tn-contact {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(255, 178, 94, .32);
  border-radius: var(--radius-l);
  background:
    radial-gradient(100% 90% at 100% 0%, rgba(255, 178, 94, .16), transparent 62%),
    rgba(6, 17, 31, .86);
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.page-news .tn-contact h3 {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--paper-050);
}

.page-news .tn-contact p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 40ch;
}

.page-news .tn-contact .btn {
  margin-top: 4px;
}

.page-news .tn-contact-note {
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(169, 184, 204, .8);
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-news .tn-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .tn-item:nth-child(even) {
    margin-top: 36px;
  }

  .page-news .tn-updates-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
  }
}

@media (min-width: 900px) {
  .page-news .tn-feature {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .tn-cat {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 20px 40px;
    align-items: start;
  }

  .page-news .tn-cat-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .page-news .tn-cat--media .tn-cat-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    gap: 28px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .tn-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr) 26px;
    grid-template-areas: "copy fig note";
    align-items: end;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-news .tn-hero-copy {
    grid-area: copy;
  }

  .page-news .tn-hero-figure {
    grid-area: fig;
  }

  .page-news .tn-vertical {
    grid-area: note;
    display: block;
    margin: 0;
    align-self: end;
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: .28em;
    color: rgba(169, 184, 204, .72);
    font-family: var(--font-mono);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tn-jump a,
  .page-news .tn-item,
  .page-news .tn-more,
  .page-news .tn-filter {
    transition: none;
  }

  .page-news .tn-filter:hover {
    transform: none;
  }
}
<<<END>>>