.page-news {
  --nw-gap: clamp(16px, 2.6vw, 30px);
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(880px 420px at 84% -6%, rgba(43, 210, 255, 0.14), transparent 62%),
    radial-gradient(700px 380px at 4% 10%, rgba(255, 122, 41, 0.12), transparent 60%),
    var(--ink-950);
}

.page-news .section {
  margin-top: clamp(30px, 4.6vw, 58px);
}

/* ============ 页面标题区 ============ */
.page-news .news-head {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(18px, 3vw, 30px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-head .display {
  max-width: 20ch;
  margin: 0;
}

.page-news .news-head .lede {
  max-width: 62ch;
  margin: 0;
}

.page-news .head-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  color: var(--slate-300);
  font-size: 14px;
}

.page-news .head-facts li {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-news .head-facts .num {
  font-family: var(--font-num);
  font-size: 19px;
  font-weight: 700;
  color: var(--lime-400);
  letter-spacing: 0.02em;
}

/* ============ 头条区 ============ */
.page-news .news-lead {
  display: grid;
  gap: var(--nw-gap);
  margin-top: clamp(24px, 4vw, 48px);
}

.page-news .lead-media .media-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-news .lead-body {
  display: grid;
  gap: 12px;
  align-content: center;
  justify-items: start;
}

.page-news .lead-body .section-title {
  margin: 0;
}

.page-news .lead-body p {
  margin: 0;
  max-width: 54ch;
}

/* ============ 阶段跳转 ============ */
.page-news .filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: clamp(22px, 3.2vw, 36px);
}

.page-news .filter-hint {
  font-size: 13px;
  color: var(--slate-300);
  margin-right: 4px;
}

.page-news .filter-row .capsule {
  text-decoration: none;
  transition: transform var(--dur) ease, box-shadow var(--dur) ease;
}

.page-news .filter-row .capsule:hover,
.page-news .filter-row .capsule:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.34);
}

/* ============ 主体双栏 ============ */
.page-news .news-grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(26px, 4vw, 50px);
}

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

.page-news .news-main > .section:first-child {
  margin-top: 0;
}

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

.page-news .side-sticky {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

/* ============ 日志列表 ============ */
.page-news .log-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .log-item {
  display: grid;
  gap: 8px;
  padding: clamp(14px, 2vw, 22px);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--ink-800);
  transition: border-color var(--dur) ease, transform var(--dur) ease;
}

.page-news .log-item:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-news .log-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.page-news .log-time {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--slate-300);
  letter-spacing: 0.01em;
}

.page-news .log-title {
  margin: 0;
  font-size: clamp(1.04rem, 1.9vw, 1.24rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--paper-50);
}

.page-news .log-text {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--soft);
}

.page-news .log-body {
  display: grid;
  gap: 12px;
}

.page-news .log-body-text {
  display: grid;
  gap: 6px;
}

.page-news .log-thumb {
  border-radius: var(--r-sm);
  overflow: hidden;
}

/* ============ 集锦归档维度 ============ */
.page-news .clip-dims {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.page-news .clip-dim {
  display: grid;
  gap: 4px;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  border-left: 3px solid var(--lime-400);
  background: rgba(22, 32, 58, 0.78);
}

.page-news .clip-dim dt {
  font-size: 14px;
  font-weight: 800;
  color: var(--lime-400);
  letter-spacing: 0.02em;
}

.page-news .clip-dim dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--soft);
}

.page-news .tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

/* ============ 功能变化记录 ============ */
.page-news .change-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .change-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(14px, 2vw, 20px);
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(42, 35, 80, 0.92), rgba(22, 32, 58, 0.92));
  border: 1px solid var(--line);
}

.page-news .change-no {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--electric-500);
}

.page-news .change-title {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 800;
  color: var(--paper-50);
}

.page-news .change-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

/* ============ 阶段归档 ============ */
.page-news .stage-scale {
  margin: 20px 0 0;
  padding: clamp(16px, 2.4vw, 24px);
  border-radius: var(--r-lg);
  background: rgba(22, 32, 58, 0.62);
  border: 1px solid var(--line);
}

.page-news .scale-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .scale-track {
  fill: rgba(245, 247, 242, 0.1);
}

.page-news .scale-seg--a {
  fill: var(--lime-400);
  opacity: 0.88;
}

.page-news .scale-seg--b {
  fill: var(--electric-500);
  opacity: 0.88;
}

.page-news .scale-seg--c {
  fill: var(--orange-500);
  opacity: 0.92;
}

.page-news .scale-dot {
  fill: var(--ink-950);
  stroke: var(--paper-50);
  stroke-width: 2;
}

.page-news .stage-scale .media-caption {
  margin-top: 10px;
}

.page-news .stage-stack {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-news .stage-group {
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-news .stage-group[open] {
  border-color: rgba(182, 240, 74, 0.42);
}

.page-news .stage-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 14px clamp(14px, 2vw, 20px);
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) ease;
}

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

.page-news .stage-summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 16px;
  color: var(--lime-400);
  line-height: 1;
}

.page-news .stage-group[open] .stage-summary::after {
  content: "－";
}

.page-news .stage-summary:hover {
  background: rgba(182, 240, 74, 0.07);
}

.page-news .stage-no {
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  color: var(--electric-500);
}

.page-news .stage-name {
  font-size: 15px;
  font-weight: 800;
  color: var(--paper-50);
}

.page-news .stage-count {
  font-size: 13px;
  color: var(--slate-300);
}

.page-news .stage-count .num {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--lime-400);
}

.page-news .stage-list {
  list-style: none;
  margin: 0;
  padding: 4px clamp(14px, 2vw, 20px) 18px 38px;
  display: grid;
  gap: 8px;
}

.page-news .stage-list li {
  position: relative;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-news .stage-list li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime-400);
}

/* ============ 右侧第二栏 ============ */
.page-news .compare {
  display: grid;
  gap: 12px;
  padding: clamp(18px, 2.6vw, 26px);
}

.page-news .compare .eyebrow {
  color: var(--lime-400);
  margin: 0;
}

.page-news .compare .section-title {
  margin: 0;
}

.page-news .compare-lede {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(245, 247, 242, 0.82);
}

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

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

.page-news .compare-row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 8px 12px;
  align-items: center;
  padding: 11px 13px;
  border-radius: var(--r-sm);
  background: rgba(11, 18, 32, 0.5);
  border: 1px solid rgba(245, 247, 242, 0.12);
}

.page-news .compare-key {
  font-size: 13px;
  font-weight: 800;
  color: var(--paper-50);
}

.page-news .compare-bar {
  display: block;
  height: 8px;
  border-radius: var(--r-pill);
  background: rgba(245, 247, 242, 0.16);
  overflow: hidden;
}

.page-news .bar-fill {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--lime-400), var(--electric-500));
}

.page-news .bar-fill--compat {
  width: 94%;
}

.page-news .bar-fill--quality {
  width: 88%;
}

.page-news .bar-fill--speed {
  width: 96%;
}

.page-news .compare-val {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(245, 247, 242, 0.82);
}

.page-news .compare-note {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(245, 247, 242, 0.22);
  font-size: 13px;
  line-height: 1.72;
  color: rgba(245, 247, 242, 0.7);
}

.page-news .side-block {
  display: grid;
  gap: 12px;
  padding: clamp(16px, 2.4vw, 22px);
}

.page-news .side-block-title {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  color: var(--paper-50);
}

.page-news .side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-news .side-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--soft);
}

.page-news .side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--electric-500);
}

.page-news .side-block .btn {
  justify-self: start;
  text-decoration: none;
}

/* ============ 专题系列 ============ */
.page-news .series-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-news .series-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2.2vw, 24px);
  border-radius: var(--r-lg);
  background: var(--ink-800);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur) ease, transform var(--dur) ease, background var(--dur) ease;
}

.page-news .series-card:nth-child(2) {
  background: linear-gradient(150deg, rgba(14, 76, 76, 0.9), rgba(22, 32, 58, 0.95));
}

.page-news .series-card:nth-child(3) {
  background: linear-gradient(150deg, rgba(42, 35, 80, 0.92), rgba(22, 32, 58, 0.95));
}

.page-news .series-card:hover,
.page-news .series-card:focus-visible {
  border-color: var(--lime-400);
  transform: translateY(-3px);
}

.page-news .series-no {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime-400);
}

.page-news .series-name {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--paper-50);
}

.page-news .series-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-news .series-go {
  margin-top: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--electric-500);
}

/* ============ 服务条 ============ */
.page-news .service-panel {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
}

.page-news .service-copy .section-title {
  margin: 0 0 10px;
}

.page-news .service-copy p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 247, 242, 0.86);
}

.page-news .service-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .service-actions .btn {
  text-decoration: none;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-news .log-body {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 880px) {
  .page-news .news-lead {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    align-items: center;
  }

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

  .page-news .service-panel {
    grid-template-columns: minmax(0, 1.7fr) auto;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-news .news-grid {
    grid-template-columns: minmax(0, 1.58fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .side-sticky {
    position: sticky;
    top: calc(var(--bar-h) + 18px);
    max-height: calc(100vh - var(--bar-h) - 36px);
    overflow-y: auto;
    padding-right: 6px;
    scrollbar-width: thin;
  }

  .page-news .side-sticky::-webkit-scrollbar {
    width: 6px;
  }

  .page-news .side-sticky::-webkit-scrollbar-thumb {
    background: var(--line-strong);
    border-radius: var(--r-pill);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-item,
  .page-news .series-card,
  .page-news .filter-row .capsule {
    transition: none;
  }

  .page-news .log-item:hover,
  .page-news .series-card:hover,
  .page-news .filter-row .capsule:hover {
    transform: none;
  }
}