.page-news {
  --news-tab-pad: 9px 15px;
  background: var(--paper);
}

.page-news .crumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(22px, 3.4vw, 44px) 0 clamp(24px, 3.4vw, 46px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-news .news-hero > .hero-shell {
  position: relative;
  z-index: 1;
}

.page-news .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
}

.page-news .hero-title {
  margin: 10px 0 0;
  font-size: clamp(34px, 7vw, 64px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--ink);
}

.page-news .hero-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .hero-aside {
  border: 1px solid var(--line);
  border-left: 3px solid var(--bamboo);
  background: var(--white);
  padding: 18px 20px;
}

.page-news .hero-aside-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bamboo);
}

.page-news .hero-aside-value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-news .hero-aside-note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-news .hero-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-news .hero-figure img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

/* ---------- 本季重点 ---------- */

.page-news .season-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
}

.page-news .change-list {
  border-top: 1px solid var(--line);
}

.page-news .change-row {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .change-mark {
  display: block;
  width: 10px;
  height: 10px;
  margin-top: 7px;
}

.page-news .change-mark--bamboo { background: var(--bamboo); }
.page-news .change-mark--orange { background: var(--orange); }
.page-news .change-mark--blue { background: var(--blue); }

.page-news .change-title {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .change-text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .season-kpis {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .season-kpis .kpi {
  background: var(--white);
  padding: 16px 18px;
}

.page-news .season-kpis .kpi-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.page-news .season-kpis .kpi-label {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-news .season-figure {
  margin: 0;
}

.page-news .season-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 动态条目与筛选 ---------- */

.page-news .news-filter {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 28px);
}

.page-news .nf-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .nf-input:focus-visible ~ .filter-tabs {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

.page-news .filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.page-news .filter-tabs-title {
  width: 100%;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-news .filter-tab {
  display: inline-flex;
  align-items: center;
  padding: var(--news-tab-pad);
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}

.page-news .filter-tab:hover {
  border-color: var(--ink);
}

.page-news #nf-all:checked ~ .filter-tabs label[for="nf-all"],
.page-news #nf-select:checked ~ .filter-tabs label[for="nf-select"] {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}

.page-news #nf-warranty:checked ~ .filter-tabs label[for="nf-warranty"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-news #nf-quote:checked ~ .filter-tabs label[for="nf-quote"] {
  background: var(--silver);
  border-color: var(--silver);
  color: var(--ink);
}

.page-news #nf-audit:checked ~ .filter-tabs label[for="nf-audit"] {
  background: var(--bamboo);
  border-color: var(--bamboo);
  color: var(--white);
}

.page-news #nf-train:checked ~ .filter-tabs label[for="nf-train"] {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--white);
}

.page-news #nf-select:checked ~ .feed .feed-item:not(.is-select),
.page-news #nf-warranty:checked ~ .feed .feed-item:not(.is-warranty),
.page-news #nf-quote:checked ~ .feed .feed-item:not(.is-quote),
.page-news #nf-audit:checked ~ .feed .feed-item:not(.is-audit),
.page-news #nf-train:checked ~ .feed .feed-item:not(.is-train) {
  display: none;
}

.page-news .feed {
  border-top: 1px solid var(--line);
}

.page-news .feed-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .item-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-news .item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-news .item-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--graphite);
}

.page-news .item-title {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .item-desc {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .item-desc a,
.page-news .item-points a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-news .item-more summary {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue);
  cursor: pointer;
  list-style: none;
}

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

.page-news .item-more summary::before {
  content: "+ ";
}

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

.page-news .item-points {
  margin: 10px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
}

.page-news .item-points li {
  position: relative;
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .item-points li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--clay);
}

/* ---------- 版本档案 ---------- */

.page-news .version-track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .version-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: var(--line);
}

.page-news .version-node {
  position: relative;
  padding: 0 0 30px 34px;
}

.page-news .version-node:last-child {
  padding-bottom: 0;
}

.page-news .version-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 15px;
  height: 15px;
  background: var(--paper);
  border: 1px solid var(--orange);
  box-shadow: inset 0 0 0 3px var(--paper), inset 0 0 0 15px var(--orange);
}

.page-news .version-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-news .version-name {
  margin: 8px 0 0;
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .version-text {
  margin: 10px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .version-tagline {
  margin: 10px 0 0;
  border-left: 2px solid var(--orange);
  padding-left: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 质保条款修订 ---------- */

.page-news .revision-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
}

.page-news .rev-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-left: 3px solid var(--silver);
  padding: 18px 20px;
  margin-bottom: 14px;
}

.page-news .rev-card--current {
  border-left-color: var(--orange);
}

.page-news .rev-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news .rev-tag {
  display: inline-block;
  padding: 3px 9px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-news .rev-card--current .rev-tag {
  background: var(--orange);
  color: var(--ink);
}

.page-news .rev-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--graphite);
}

.page-news .rev-title {
  margin: 12px 0 0;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .rev-text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .rev-impact {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--clay);
}

.page-news .revision-figure {
  margin: 0;
  align-self: start;
}

.page-news .revision-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 更新提醒 ---------- */

.page-news .remind-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  align-items: start;
}

.page-news .remind-main .sec-title {
  margin-top: 10px;
}

.page-news .remind-lede {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-news .remind-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

.page-news .remind-data {
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .remind-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .remind-figure {
  margin: 0;
}

.page-news .remind-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 760px) {
  .page-news .season-kpis {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .feed-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 20px;
    padding: 24px 0;
  }

  .page-news .item-num {
    padding-top: 3px;
  }

  .page-news .remind-row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-news .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 56px);
  }

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

  .page-news .news-filter {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 44px);
  }

  .page-news .filter-tabs {
    position: sticky;
    top: 104px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .page-news .filter-tab {
    justify-content: flex-start;
  }

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

  .page-news .remind-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

@media (min-width: 1200px) {
  .page-news .hero-figure img {
    max-height: 460px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-tab {
    transition: none;
  }
}