.page-news {
  --news-line: rgba(138, 155, 176, .28);
  --news-card: rgba(18, 36, 59, .72);
  --news-card-deep: rgba(11, 23, 41, .96);
  padding-bottom: 84px;
  background:
    radial-gradient(880px 460px at 84% -4%, rgba(57, 224, 208, .10), transparent 62%),
    radial-gradient(720px 420px at 2% 14%, rgba(255, 122, 47, .06), transparent 60%);
}

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

.page-news .media-frame {
  overflow: hidden;
  border-radius: var(--r-md);
  margin: 0;
}

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

/* ---------- 首屏专题带 ---------- */
.page-news .news-hero {
  display: grid;
  gap: 20px;
  padding: 22px 0 6px;
}

.page-news .news-hero__band {
  position: relative;
  padding: 26px 20px 24px 24px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(18, 36, 59, .95) 0%, rgba(11, 23, 41, .99) 64%);
  overflow: hidden;
}

.page-news .news-hero__band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(57, 224, 208, .09) 0 1px, transparent 1px 46px);
  opacity: .55;
  pointer-events: none;
}

.page-news .news-hero__band::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--signal));
}

.page-news .news-hero__band > * {
  position: relative;
}

.page-news h1 {
  margin: 12px 0 0;
  font-size: clamp(28px, 7.2vw, 52px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--white);
}

.page-news .news-hero__lead {
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--trace-light);
  font-size: 16px;
  line-height: 1.75;
}

.page-news .news-hero__meta {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
  color: var(--trace);
}

.page-news .news-hero__meta .mono {
  position: relative;
  padding-left: 14px;
}

.page-news .news-hero__meta .mono::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-news .news-hero__actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-hero__media {
  border: 1px solid var(--rail-line);
  border-radius: var(--r-lg);
  background: var(--news-card-deep);
}

.page-news .news-hero__media img {
  min-height: 190px;
}

/* ---------- 分类标签条 ---------- */
.page-news .news-filters {
  margin-top: 26px;
  border-top: 1px dashed var(--news-line);
  border-bottom: 1px dashed var(--news-line);
  padding: 12px 0;
}

.page-news .news-filters__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-filters__list .tag {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  text-decoration: none;
  font-size: 13px;
  transition: color .18s var(--ease-out), border-color .18s var(--ease-out);
}

.page-news .news-filters__list .tag:hover,
.page-news .news-filters__list .tag:focus-visible {
  color: var(--white);
  border-color: var(--signal);
}

/* ---------- 区块通用 ---------- */
.page-news .news-section {
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid var(--news-line);
}

.page-news .section-head h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 4.6vw, 34px);
  line-height: 1.18;
  letter-spacing: -.015em;
  font-weight: 800;
  color: var(--white);
}

.page-news .section-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--trace-light);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 本期专题 ---------- */
.page-news .news-topic__grid {
  margin-top: 22px;
  display: grid;
  gap: 18px;
}

.page-news .finding-list {
  counter-reset: find;
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-news .finding-list > li {
  counter-increment: find;
  position: relative;
  padding: 16px 16px 16px 50px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--news-card);
}

.page-news .finding-list > li::before {
  content: counter(find, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-news .finding-list h3 {
  margin: 0;
  font-size: 16px;
  color: var(--white);
  letter-spacing: .01em;
}

.page-news .finding-list p {
  margin: 8px 0 0;
  color: var(--trace-light);
  font-size: 15px;
  line-height: 1.7;
}

.page-news .chart-card {
  margin: 0;
  padding: 18px 16px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, rgba(18, 36, 59, .9), rgba(11, 23, 41, .98));
}

.page-news .chart-card__cap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .chart-card__cap .mono {
  font-size: 12px;
  color: var(--cyan);
}

.page-news .chart-card__cap strong {
  color: var(--white);
  font-size: 17px;
}

.page-news .chart {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 12px;
}

.page-news .chart-card__note {
  margin: 12px 0 0;
  color: var(--trace);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 版本迭代记录 ---------- */
.page-news .news-track {
  position: relative;
  margin-top: 24px;
  padding-left: 30px;
}

.page-news .news-track::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(57, 224, 208, .55), rgba(138, 155, 176, .22) 46%, rgba(255, 122, 47, .38));
}

.page-news .trace-item {
  position: relative;
  margin-bottom: 20px;
}

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

.page-news .trace-item__dot {
  position: absolute;
  left: -27px;
  top: 2px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(57, 224, 208, .13);
}

.page-news .trace-item__no {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--trace);
}

.page-news .trace-item__body {
  padding: 16px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--news-card);
}

.page-news .trace-item__body h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
  color: var(--white);
}

.page-news .trace-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
}

.page-news .trace-item__body p {
  margin: 12px 0 0;
  color: var(--trace-light);
  font-size: 15px;
  line-height: 1.72;
}

.page-news .trace-more {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--news-line);
}

.page-news .trace-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

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

.page-news .trace-more summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  text-align: center;
  color: var(--signal);
}

.page-news .trace-more[open] summary::before {
  content: "\2013";
}

.page-news .trace-more ul {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-news .trace-more li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding-left: 12px;
  border-left: 2px solid rgba(57, 224, 208, .35);
  color: var(--trace-light);
  font-size: 14px;
  line-height: 1.65;
}

.page-news .trace-more .mono {
  color: var(--cyan);
  font-size: 13px;
}

.page-news .track-figure {
  margin: 0 0 22px;
  border: 1px solid var(--rail-line);
  background: var(--news-card-deep);
}

/* ---------- 栏目改版观察 ---------- */
.page-news .layout-observe {
  margin-top: 22px;
  display: grid;
  gap: 18px;
}

.page-news .observe-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-news .observe-list li {
  position: relative;
  padding: 14px 16px 14px 34px;
  border: 1px solid var(--rail-line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--r-sm);
  background: var(--news-card);
  color: var(--trace-light);
  font-size: 15px;
  line-height: 1.7;
}

.page-news .observe-list li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
}

.page-news .observe-note {
  margin: 14px 0 0;
  color: var(--trace);
  font-size: 14px;
  line-height: 1.7;
}

.page-news .observe-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(57, 224, 208, .5);
}

.page-news .observe-note a:hover,
.page-news .observe-note a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--signal);
}

.page-news .layout-observe__media {
  border: 1px solid var(--rail-line);
  background: var(--news-card-deep);
}

/* ---------- 资料库新增 ---------- */
.page-news .library-grid {
  margin-top: 22px;
  display: grid;
  gap: 18px;
}

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

.page-news .library-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  padding: 13px 14px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-sm);
  background: rgba(18, 36, 59, .58);
}

.page-news .library-item__seg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 1px solid rgba(57, 224, 208, .45);
  background: rgba(57, 224, 208, .09);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-news .library-item__body {
  color: var(--trace-light);
  font-size: 15px;
  line-height: 1.65;
}

.page-news .library-item__body strong {
  display: block;
  margin-bottom: 2px;
  color: var(--white);
  font-size: 15px;
}

.page-news .library-figure {
  border: 1px solid var(--rail-line);
  background: var(--news-card-deep);
}

/* ---------- 问题与路径反馈 ---------- */
.page-news .feedback-group {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.page-news .feedback-item {
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: rgba(18, 36, 59, .6);
  overflow: hidden;
  transition: border-color .2s var(--ease-out);
}

.page-news .feedback-item[open] {
  border-color: rgba(240, 180, 41, .5);
  background: rgba(18, 36, 59, .82);
}

.page-news .feedback-item summary {
  position: relative;
  display: block;
  padding: 15px 44px 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-size: 16px;
  line-height: 1.6;
}

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

.page-news .feedback-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--warn);
}

.page-news .feedback-item[open] summary::after {
  content: "\2013";
  color: var(--cyan);
}

.page-news .feedback-item p {
  margin: 0;
  padding: 0 16px 16px;
  color: var(--trace-light);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px dashed var(--news-line);
  padding-top: 12px;
}

/* ---------- 下一步 ---------- */
.page-news .news-next {
  margin-top: 50px;
  padding: 24px 18px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(18, 36, 59, .92), rgba(11, 23, 41, .99));
}

.page-news .news-next__grid {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.page-news .next-card {
  display: grid;
  gap: 6px;
  padding: 17px 16px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: rgba(11, 23, 41, .72);
  text-decoration: none;
  transition: border-color .2s var(--ease-out), transform .2s var(--ease-out);
}

.page-news .next-card:hover,
.page-news .next-card:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .next-card__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-news .next-card strong {
  color: var(--white);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 600;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-filters__list {
    flex-wrap: wrap;
    overflow-x: visible;
  }

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

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

@media (min-width: 900px) {
  .page-news {
    padding-bottom: 96px;
  }

  .page-news .news-hero {
    grid-template-columns: 1.04fr .96fr;
    align-items: stretch;
    gap: 24px;
    padding-top: 30px;
  }

  .page-news .news-hero__band {
    padding: 34px 30px 30px 34px;
  }

  .page-news .news-hero__media img {
    height: 100%;
    min-height: 300px;
  }

  .page-news .news-topic__grid {
    grid-template-columns: 1.12fr .88fr;
    align-items: start;
  }

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

  .page-news .news-track {
    padding-left: 42px;
  }

  .page-news .news-track::before {
    left: 13px;
  }

  .page-news .trace-item__dot {
    left: -35px;
    top: 4px;
  }

  .page-news .trace-item:nth-child(2n) .trace-item__body {
    margin-left: 7%;
  }

  .page-news .trace-item:nth-child(3n) .trace-item__body {
    margin-right: 10%;
  }

  .page-news .trace-item__body {
    padding: 18px 20px;
  }

  .page-news .track-figure {
    margin-bottom: 26px;
  }

  .page-news .layout-observe {
    grid-template-columns: .92fr 1.08fr;
    align-items: start;
    gap: 24px;
  }

  .page-news .library-grid {
    grid-template-columns: 1.06fr .94fr;
    align-items: start;
  }

  .page-news .news-next {
    padding: 30px 28px;
  }

  .page-news .news-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-news .news-section {
    margin-top: 58px;
    padding-top: 32px;
  }

  .page-news .finding-list {
    gap: 14px;
  }
}