.page-news {
  --news-line: rgba(85, 97, 143, 0.42);
  --news-wash: rgba(27, 42, 91, 0.52);
  --news-violet-lite: #C7B2FF;
  background: var(--wb-indigo);
  color: var(--wb-cream);
}

.page-news .crumbs {
  padding: 22px 0 4px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(201, 245, 238, 0.62);
}

.page-news .crumbs a {
  color: var(--wb-mist);
  text-decoration: none;
}

.page-news .crumbs a:hover {
  color: var(--wb-cyan);
}

/* ---------- 页头 ---------- */

.page-news .news-head__inner {
  display: grid;
  gap: 18px;
  padding: 16px 0 40px;
  border-bottom: 2px solid var(--wb-ink);
}

.page-news .news-head__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--wb-orange);
}

.page-news .news-head__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--wb-cream);
}

.page-news .news-head__lead {
  margin: 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--wb-mist);
}

.page-news .news-readout {
  list-style: none;
  margin: 4px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--news-line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
}

.page-news .news-readout__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.1;
  color: var(--wb-cyan);
}

.page-news .news-readout li:last-child .news-readout__num {
  color: var(--wb-violet);
}

.page-news .news-readout__lab {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(201, 245, 238, 0.72);
}

/* ---------- 章节抬头 ---------- */

.page-news .section-head__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--wb-orange);
}

.page-news .section-head__meta {
  color: rgba(201, 245, 238, 0.66);
}

/* ---------- 最近更新 ---------- */

.page-news .feed-visual {
  margin: 0 0 30px;
}

.page-news .feed-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .feed-visual__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(201, 245, 238, 0.7);
}

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

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

.page-news .feed-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-news .feed-tabs::-webkit-scrollbar {
  display: none;
}

.page-news .feed-tab {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--wb-line);
  background: transparent;
  color: var(--wb-mist);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.05em;
  padding: 8px 15px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .feed-tab:hover {
  border-color: var(--wb-cyan);
  color: var(--wb-cyan);
}

.page-news .feed-tab:focus-visible {
  outline: 2px solid var(--wb-orange);
  outline-offset: 2px;
}

.page-news .feed-tab[aria-selected="true"],
.page-news .feed-tab.is-active {
  background: var(--wb-violet);
  border-color: var(--wb-violet);
  color: #FFFFFF;
}

.page-news .feed__body {
  min-width: 0;
}

.page-news .feed-panel {
  display: flex;
  flex-direction: column;
}

.page-news .feed-panel[hidden] {
  display: none;
}

.page-news .feed-item {
  border: 0;
  background: transparent;
  padding: 15px 16px 15px 18px;
  transition: background 200ms var(--ease);
}

.page-news .feed-item:first-child {
  padding-top: 26px;
  padding-bottom: 26px;
}

.page-news .feed-item:nth-child(even) {
  background: var(--news-wash);
}

.page-news .feed-item__head {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  outline: none;
}

.page-news .feed-item__head::-webkit-details-marker {
  display: none;
}

.page-news .feed-item__head::after {
  content: "+";
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--wb-orange);
}

.page-news .feed-item[open] .feed-item__head::after {
  content: "\2212";
}

.page-news .feed-item__head:focus-visible {
  outline: 2px solid var(--wb-orange);
  outline-offset: 3px;
}

.page-news .feed-item__title {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 3.6vw, 23px);
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--wb-cream);
}

.page-news .feed-item__when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(201, 245, 238, 0.6);
}

.page-news .feed-item__body {
  margin: 12px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--wb-mist);
}

.page-news .feed-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-news .feed-tag--device {
  background: rgba(47, 227, 208, 0.16);
  color: var(--wb-cyan);
}

.page-news .feed-tag--settle {
  background: rgba(255, 138, 61, 0.16);
  color: var(--wb-orange);
}

.page-news .feed-tag--eco {
  background: rgba(139, 92, 246, 0.22);
  color: var(--news-violet-lite);
}

.page-news .feed-tag--table {
  background: rgba(201, 245, 238, 0.14);
  color: var(--wb-mist);
}

/* ---------- 月度观察 ---------- */

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

.page-news .obs__figure {
  margin: 0;
}

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

.page-news .obs__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(201, 245, 238, 0.7);
}

.page-news .period-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--wb-ink);
}

.page-news .period {
  display: grid;
  grid-template-columns: auto auto;
  justify-content: start;
  gap: 6px 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .period__no {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--wb-cream);
  padding-bottom: 3px;
  border-bottom: 2px solid var(--wb-red);
  white-space: nowrap;
}

.page-news .period__when {
  align-self: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wb-orange);
}

.page-news .period__note {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--wb-mist);
}

.page-news .obs__foot {
  margin: 26px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(201, 245, 238, 0.78);
}

.page-news .obs__foot a {
  color: var(--wb-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 厂商接入 ---------- */

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

.page-news .vendor-fig {
  margin: 0;
}

.page-news .vendor-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .vendor-numbers {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.page-news .vendor-numbers li {
  padding-left: 14px;
  border-left: 3px solid var(--wb-line);
}

.page-news .vendor-numbers__now {
  border-left-color: var(--wb-orange) !important;
}

.page-news .vendor-numbers b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(38px, 9vw, 58px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--wb-cream);
}

.page-news .vendor-numbers__now b {
  color: var(--wb-orange);
}

.page-news .vendor-numbers span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(201, 245, 238, 0.72);
}

.page-news .vendor-lead {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--wb-mist);
}

.page-news .vendor-split {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .vendor-split li {
  padding-left: 14px;
  border-left: 3px solid var(--wb-violet);
  font-size: 15px;
  line-height: 1.75;
  color: var(--wb-mist);
}

.page-news .vendor-split b {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 18px;
  color: var(--news-violet-lite);
  margin-right: 4px;
}

.page-news .vendor-flow {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(201, 245, 238, 0.78);
}

.page-news .vendor-flow a {
  color: var(--wb-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌台上新 ---------- */

.page-news .table-grid {
  display: grid;
  gap: 26px;
}

.page-news .table-fig {
  margin: 0;
}

.page-news .table-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .kind-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .kind-list li {
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 6px 13px;
  border: 1px solid var(--news-line);
  border-radius: 999px;
  color: var(--wb-mist);
}

.page-news .kind-list .is-new {
  border-color: var(--wb-violet);
  background: rgba(139, 92, 246, 0.2);
  color: var(--news-violet-lite);
}

.page-news .table-note {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--wb-mist);
}

/* ---------- 专题系列 ---------- */

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

.page-news .series {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: var(--wb-ink);
  border-top: 4px solid var(--wb-cyan);
}

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

.page-news .series:nth-child(3) {
  border-top-color: var(--wb-violet);
}

.page-news .series__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: rgba(201, 245, 238, 0.66);
}

.page-news .series__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 4vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--wb-cream);
}

.page-news .series__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--wb-mist);
}

/* ---------- 回溯与联系 ---------- */

.page-news .archive {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 32px 24px 28px;
}

.page-news .archive h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 5.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--wb-brown);
}

.page-news .archive p {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--wb-brown);
}

.page-news .archive p b {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--wb-red);
  word-break: break-all;
}

.page-news .archive__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}

.page-news .archive__link {
  font-size: 14px;
  color: var(--wb-brown);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .archive__link:hover {
  color: var(--wb-red);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-news .section-head {
    max-width: 62ch;
  }

  .page-news .feed-item {
    padding-left: 22px;
    padding-right: 22px;
  }
}

@media (min-width: 880px) {
  .page-news .feed {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 34px;
  }

  .page-news .feed__rail {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-news .feed-tabs {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .feed-tab {
    text-align: left;
  }

  .page-news .obs {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
  }

  .page-news .vendor-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 44px;
  }

  .page-news .table-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: 42px;
  }

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

  .page-news .archive {
    padding: 40px 36px 34px;
  }
}

@media (min-width: 1120px) {
  .page-news .obs {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}