.page-news {
  --news-line: rgba(45, 90, 71, .58);
  --news-line-soft: rgba(45, 90, 71, .3);
  --news-surface: #0b1a13;
  --news-glow: rgba(200, 255, 77, .08);
  background: var(--ink);
  color: var(--mist);
  overflow-x: clip;
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

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

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--news-line);
  background:
    radial-gradient(120% 100% at 92% -10%, rgba(200, 255, 77, .12), transparent 60%),
    radial-gradient(90% 80% at 0% 110%, rgba(255, 138, 61, .07), transparent 65%),
    linear-gradient(180deg, rgba(16, 24, 21, .9), rgba(7, 19, 15, 0));
  overflow: hidden;
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 90, 71, .18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 90, 71, .18) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .7), transparent 68%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .7), transparent 68%);
  pointer-events: none;
}

.page-news .news-masthead__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.page-news .news-masthead__title {
  font-family: var(--font-display);
  font-size: var(--step-5);
  line-height: .9;
  font-weight: 700;
  letter-spacing: -.015em;
  margin: .4rem 0 0;
  color: var(--mist);
}

.page-news .news-masthead__sub {
  font-size: var(--step-2);
  line-height: 1.45;
  font-weight: 600;
  max-width: 30ch;
  margin: 1.1rem 0 0;
  color: var(--mist);
}

.page-news .news-masthead__text {
  color: var(--fog);
  line-height: 1.8;
  max-width: 54ch;
  margin: .9rem 0 0;
}

.page-news .news-masthead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.6rem;
}

.page-news .news-masthead__aside {
  border-left: 2px solid var(--lime);
  padding: .3rem 0 .3rem 1.1rem;
  background: linear-gradient(90deg, var(--news-glow), transparent 85%);
}

.page-news .news-masthead__aside-label {
  font-size: var(--step--1);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 .9rem;
}

.page-news .news-brief {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-news .news-brief li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .6rem;
  align-items: baseline;
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--mist);
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .news-brief li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-brief__num {
  color: var(--score);
  font-size: var(--step--1);
}

/* ---------- 专题 ---------- */
.page-news .news-topics {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-news .topics-grid {
  display: grid;
  gap: 1.15rem;
  margin-top: 1.75rem;
}

.page-news .topic {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--news-line);
  background: linear-gradient(165deg, rgba(18, 50, 39, .82), rgba(9, 22, 17, .95));
  position: relative;
}

.page-news .topic::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 42px;
  height: 2px;
  background: var(--lime);
}

.page-news .topic--lead::before {
  width: 88px;
  background: var(--orange);
}

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

.page-news .topic__media .media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

.page-news .topic:hover .topic__media .media__img {
  transform: scale(1.02);
}

.page-news .topic__body {
  padding: 1.25rem 1.15rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  flex: 1;
}

.page-news .topic--lead .topic__body {
  padding: 1.5rem 1.25rem 1.75rem;
}

.page-news .topic__label {
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--cyan);
  margin: 0;
}

.page-news .topic__title {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.15;
  font-weight: 700;
  margin: 0;
  color: var(--mist);
}

.page-news .topic--lead .topic__title {
  font-size: var(--step-4);
}

.page-news .topic__text {
  color: var(--fog);
  line-height: 1.8;
  margin: 0;
  font-size: var(--step-0);
}

.page-news .topic__points {
  list-style: none;
  margin: .2rem 0 0;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-news .topic__points li {
  position: relative;
  padding-left: 1.1rem;
  font-size: var(--step--1);
  line-height: 1.65;
  color: var(--mist);
}

.page-news .topic__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 6px;
  height: 6px;
  background: var(--lime);
}

.page-news .topic .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 索引区 ---------- */
.page-news .news-index {
  padding-top: clamp(2.5rem, 6vw, 5rem);
}

.page-news .news-index-grid {
  display: grid;
  gap: 2.25rem;
}

.page-news .news-side {
  display: grid;
  gap: 1.75rem;
  align-content: start;
}

.page-news .news-side__block {
  border-top: 1px solid var(--news-line);
  padding-top: .9rem;
}

.page-news .news-side__block--note {
  background: linear-gradient(180deg, rgba(200, 255, 77, .05), transparent);
  border-top-color: var(--lime);
  padding: .9rem .9rem 1rem;
}

.page-news .news-cats {
  list-style: none;
  margin: .8rem 0 0;
  padding: 0 0 .3rem;
  display: flex;
  gap: .45rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-cats li {
  flex: 0 0 auto;
}

.page-news .news-side__text {
  margin: .7rem 0 0;
  font-size: var(--step--1);
  line-height: 1.75;
  color: var(--fog);
}

.page-news .news-side__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 227, 192, .45);
}

.page-news .news-side__link:hover {
  border-bottom-color: var(--cyan);
}

.page-news .news-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--news-line);
}

.page-news .news-item {
  border-bottom: 1px solid var(--news-line-soft);
  padding: 1.35rem 0 1.5rem;
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.page-news .news-item:hover {
  background: linear-gradient(90deg, var(--news-glow), transparent 78%);
  box-shadow: inset 2px 0 0 var(--lime);
}

.page-news .news-item--media {
  display: grid;
  gap: .9rem;
}

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

.page-news .news-item__thumb .media__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.9);
  transition: filter .35s var(--ease);
}

.page-news .news-item--media:hover .news-item__thumb .media__img {
  filter: saturate(1.05);
}

.page-news .news-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .6rem;
}

.page-news .news-item__num {
  font-size: var(--step--1);
  color: var(--lime);
  letter-spacing: .08em;
  margin-right: .2rem;
}

.page-news .news-item__time {
  font-size: var(--step--1);
  color: var(--fog);
  margin-left: auto;
  white-space: nowrap;
}

.page-news .news-item__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.25;
  font-weight: 700;
  margin: .55rem 0 .45rem;
  color: var(--mist);
  transition: color .2s var(--ease);
}

.page-news .news-item:hover .news-item__title {
  color: var(--lime-soft);
}

.page-news .news-item__sum {
  margin: 0;
  max-width: 62ch;
  color: var(--fog);
  line-height: 1.78;
  font-size: var(--step-0);
}

.page-news .news-item__more {
  margin-top: .75rem;
}

.page-news .news-item__more summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .05em;
  color: var(--cyan);
  padding: .2rem 0;
}

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

.page-news .news-item__more summary::before {
  content: "+";
  display: inline-block;
  width: 1em;
  text-align: center;
  color: var(--lime);
}

.page-news .news-item__more[open] summary::before {
  content: "−";
}

.page-news .news-item__more summary:hover {
  color: var(--lime);
}

.page-news .news-item__more ul {
  list-style: none;
  margin: .75rem 0 0;
  padding: 0 0 0 .9rem;
  border-left: 1px solid var(--news-line);
  display: grid;
  gap: .5rem;
}

.page-news .news-item__more li {
  font-size: var(--step--1);
  line-height: 1.72;
  color: var(--mist);
  position: relative;
  padding-left: .85rem;
}

.page-news .news-item__more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 5px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 阅读路径 ---------- */
.page-news .news-paths {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-news .paths-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-news .path {
  border: 1px solid var(--news-line);
  border-top: 2px solid var(--lime);
  background: linear-gradient(180deg, rgba(16, 24, 21, .92), rgba(7, 19, 15, .96));
  padding: 1.2rem 1.1rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
}

.page-news .path:nth-child(2) {
  border-top-color: var(--orange);
}

.page-news .path:nth-child(3) {
  border-top-color: var(--cyan);
}

.page-news .path__label {
  margin: 0;
  font-size: var(--step--1);
  letter-spacing: .16em;
  color: var(--fog);
}

.page-news .path__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  margin: 0;
  color: var(--mist);
}

.page-news .path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
  counter-reset: none;
}

.page-news .path__steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .55rem;
  align-items: baseline;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--fog);
}

.page-news .path__num {
  color: var(--lime);
  font-size: var(--step--1);
}

.page-news .path:nth-child(2) .path__num {
  color: var(--orange);
}

.page-news .path:nth-child(3) .path__num {
  color: var(--cyan);
}

.page-news .path__link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .05em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--news-line);
  padding-bottom: .15rem;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-news .cadence-grid {
  display: grid;
  gap: 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--news-line);
}

.page-news .cadence {
  padding: 1.3rem 0 1.4rem;
  border-bottom: 1px solid var(--news-line-soft);
  display: grid;
  gap: .45rem;
}

.page-news .cadence__when {
  margin: 0;
  font-size: var(--step--1);
  letter-spacing: .12em;
  color: var(--orange);
}

.page-news .cadence__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  margin: 0;
  color: var(--mist);
}

.page-news .cadence__text {
  margin: 0;
  color: var(--fog);
  line-height: 1.78;
  font-size: var(--step-0);
  max-width: 46ch;
}

.page-news .cadence-foot {
  margin-top: 1.75rem;
  padding: 1.25rem 1.15rem;
  border: 1px solid var(--news-line);
  border-left: 3px solid var(--lime);
  background: linear-gradient(100deg, rgba(200, 255, 77, .07), rgba(7, 19, 15, .6) 70%);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.page-news .cadence-foot__text {
  margin: 0;
  max-width: 56ch;
  color: var(--mist);
  line-height: 1.75;
  font-size: var(--step-0);
}

.page-news .cadence-foot__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 227, 192, .45);
}

.page-news .cadence-foot__link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-item--media {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 2rem;
  }

  .page-news .cadence {
    border-bottom: 0;
    padding-bottom: .5rem;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .78fr);
    gap: 3.5rem;
    align-items: end;
  }

  .page-news .news-masthead__aside {
    padding-left: 1.5rem;
  }

  .page-news .topics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.35rem;
  }

  .page-news .topic--lead {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .topic--lead .topic__media {
    border-bottom: 0;
    border-right: 1px solid var(--news-line);
    height: 100%;
  }

  .page-news .topic--lead .topic__media .media__img {
    height: 100%;
    min-height: 320px;
  }

  .page-news .paths-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-news .news-item--media {
    grid-template-columns: 260px minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-news .news-index-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 3.5rem;
  }

  .page-news .news-side {
    position: sticky;
    top: 96px;
  }

  .page-news .news-cats {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic__media .media__img,
  .page-news .news-item,
  .page-news .news-item__title,
  .page-news .path__link {
    transition: none;
  }

  .page-news .topic:hover .topic__media .media__img {
    transform: none;
  }
}
<<<END>>>