.page-news {
  --pn-radius: 4px;
  --pn-gap: clamp(16px, 2.4vw, 28px);
}

/* ---------- Hero ---------- */

.page-news .pn-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 8vw, 104px) 0 clamp(32px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

.page-news .pn-hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-news .pn-hero__canvas img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.36;
}

.page-news .pn-hero__canvas::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 10% 0%, rgba(86, 200, 222, 0.14), transparent 62%),
    linear-gradient(180deg, rgba(6, 10, 22, 0.55) 0%, rgba(6, 10, 22, 0.9) 62%, var(--ink) 100%);
}

.page-news .pn-hero__inner {
  position: relative;
  z-index: 1;
}

.page-news .pn-hero .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 40px);
}

.page-news .pn-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(1.95rem, 5.2vw, 3.5rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--silver);
}

.page-news .pn-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 68ch;
  font-size: clamp(15.5px, 1.4vw, 17px);
  line-height: 1.78;
  color: var(--body-text);
}

.page-news .pn-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 时间带 ---------- */

.page-news .pn-timeline {
  position: relative;
  height: 60px;
  margin-top: clamp(28px, 5vw, 52px);
}

.page-news .pn-timeline__rail {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--line) 8%,
    var(--line) 92%,
    transparent 100%);
}

.page-news .pn-timeline__node {
  position: absolute;
  top: 50%;
  width: 9px;
  height: 9px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--ink);
  box-shadow: 0 0 0 3px rgba(86, 200, 222, 0.08);
  cursor: default;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .pn-timeline__node:hover,
.page-news .pn-timeline__node:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

.page-news .pn-timeline__node::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 175%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 5px 10px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--silver);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .pn-timeline__node:hover::after,
.page-news .pn-timeline__node:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.page-news .pn-timeline__node:nth-child(2) { left: 6%; }
.page-news .pn-timeline__node:nth-child(3) { left: 18.6%; }
.page-news .pn-timeline__node:nth-child(4) { left: 31.2%; }
.page-news .pn-timeline__node:nth-child(5) { left: 43.8%; }
.page-news .pn-timeline__node:nth-child(6) { left: 56.4%; }
.page-news .pn-timeline__node:nth-child(7) { left: 69%; }
.page-news .pn-timeline__node:nth-child(8) { left: 81.6%; }
.page-news .pn-timeline__node:nth-child(9) { left: 94.2%; }

/* ---------- 通用小件 ---------- */

.page-news .pn-lead {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mute);
}

.page-news a {
  color: var(--cyan);
  text-decoration: none;
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news a:hover,
.page-news a:focus-visible {
  background-size: 100% 1px;
}

/* ---------- 速览 ---------- */

.page-news .pn-brief__grid {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: var(--pn-gap);
  grid-template-columns: 1fr;
}

.page-news .pn-brief__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 20px 18px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .pn-brief__card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-news .pn-brief__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .pn-brief__when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.page-news .pn-brief__card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-news .pn-brief__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--body-text);
}

.page-news .pn-brief__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-news .pn-brief__facts > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .pn-brief__facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-news .pn-brief__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--silver);
}

/* ---------- 记录列表 ---------- */

.page-news .pn-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .pn-filters__figure {
  flex: 1 1 100%;
  margin: 8px 0 0;
}

.page-news .pn-filters__figure img {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
  opacity: 0.9;
}

.page-news .pn-filters__figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.page-news .pn-list {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .pn-item {
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--line);
}

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

.page-news .pn-item__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mute);
  white-space: nowrap;
}

.page-news .pn-item__title {
  margin: 12px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-news .pn-item__desc {
  margin: 8px 0 0;
  max-width: 70ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
}

.page-news .pn-item__more {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: rgba(13, 23, 48, 0.5);
  transition: border-color var(--dur) var(--ease);
}

.page-news .pn-item__more:hover {
  border-color: var(--cyan);
}

.page-news .pn-item__more[open] {
  border-color: var(--cyan);
}

.page-news .pn-item__more summary {
  padding: 10px 14px;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}

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

.page-news .pn-item__more summary::before {
  content: "＋";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
  color: var(--star);
}

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

.page-news .pn-item__body {
  padding: 0 14px 16px;
  border-top: 1px dashed var(--line);
}

.page-news .pn-item__body p {
  margin: 12px 0 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 横向主题带 ---------- */

.page-news .pn-band {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 32px) 0;
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 2.4vw, 28px);
  border-left: 2px solid var(--clay);
  background: linear-gradient(90deg, rgba(184, 122, 94, 0.08), transparent 70%);
}

.page-news .pn-band__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-news .pn-band p {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 发布节奏 ---------- */

.page-news .pn-cadence__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-news .pn-cadence__text h2 {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--silver);
}

.page-news .pn-cadence__text p {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-news .pn-cadence__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .pn-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--star);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
}

.page-news .pn-stat__value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-news .pn-stat__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--star);
}

.page-news .pn-stat__label {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--mute);
}

.page-news .pn-cadence__figure {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
}

.page-news .pn-cadence__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
}

.page-news .pn-cadence__figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 版本线 ---------- */

.page-news .pn-versions__grid {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: var(--pn-gap);
  grid-template-columns: 1fr;
}

.page-news .pn-vline {
  display: flex;
  flex-direction: column;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .pn-vline:hover {
  transform: translateY(-2px);
}

.page-news .pn-vline--stable { border-top: 3px solid var(--star); }
.page-news .pn-vline--standard { border-top: 3px solid var(--cyan); }
.page-news .pn-vline--lite { border-top: 3px solid var(--moss); }

.page-news .pn-vline__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-news .pn-vline__head h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-news .pn-vline__code {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-news .pn-vline__intro {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
}

.page-news .pn-vline__items {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px dashed var(--line);
}

.page-news .pn-vline__items li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .pn-vline__ver {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-news .pn-vline__note {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--body-text);
}

.page-news .pn-vline__fit {
  margin: auto 0 0;
  padding-top: 16px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mute);
}

.page-news .pn-versions__foot {
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 追溯查询 ---------- */

.page-news .pn-query__grid {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: var(--pn-gap);
  grid-template-columns: 1fr;
}

.page-news .pn-query__card {
  position: relative;
  padding: 24px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background:
    linear-gradient(160deg, rgba(86, 200, 222, 0.06), transparent 55%),
    var(--ink-2);
  transition: border-color var(--dur) var(--ease);
}

.page-news .pn-query__card:hover {
  border-color: var(--cyan);
}

.page-news .pn-query__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-news .pn-query__card h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-news .pn-query__card p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-news .pn-query__note {
  margin-top: clamp(24px, 3.5vw, 36px);
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
}

.page-news .pn-query__note p {
  margin: 0;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-news .pn-query__note p + p {
  margin-top: 12px;
}

/* ---------- 专题 ---------- */

.page-news .pn-topics__grid {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: var(--pn-gap);
  grid-template-columns: 1fr;
}

.page-news .pn-topic {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
}

.page-news .pn-topic__figure {
  margin: 0;
}

.page-news .pn-topic__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  opacity: 0.85;
}

.page-news .pn-topic__body {
  padding: 22px 20px 24px;
}

.page-news .pn-topic__body h3 {
  margin: 12px 0 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-news .pn-topic__body p {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-news .pn-topic__stamp {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0 20px 24px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--pn-radius);
  background: rgba(244, 240, 230, 0.94);
}

.page-news .pn-topic__stamp-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #1b2a52;
}

.page-news .pn-topic__stamp-text {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #4a5568;
}

/* ---------- 伙伴同步 ---------- */

.page-news .pn-partners__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-news .pn-partners__text h2 {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.02em;
  color: var(--silver);
}

.page-news .pn-partners__text p {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-news .pn-partners__aside {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--star);
  border-radius: var(--pn-radius);
  background: var(--ink-2);
}

.page-news .pn-partners__aside h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-news .pn-partners__list {
  list-style: none;
  margin: 16px 0 20px;
  padding: 0;
}

.page-news .pn-partners__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .pn-k {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mute);
  white-space: nowrap;
}

.page-news .pn-v {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  text-align: right;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .pn-brief__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 1024px) {
  .page-news .pn-hero h1 {
    max-width: 24ch;
  }

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

  .page-news .pn-cadence__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

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

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

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

  .page-news .pn-topic--alt {
    flex-direction: column;
  }

  .page-news .pn-partners__inner {
    grid-template-columns: 1.4fr 0.9fr;
  }

  .page-news .pn-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .pn-item__desc {
    max-width: 78ch;
  }
}

@media (min-width: 1280px) {
  .page-news .pn-list {
    max-width: 1080px;
  }

  .page-news .pn-band {
    max-width: 1080px;
  }
}

@media (max-width: 420px) {
  .page-news .pn-timeline__node:nth-child(4),
  .page-news .pn-timeline__node:nth-child(6),
  .page-news .pn-timeline__node:nth-child(8) {
    display: none;
  }

  .page-news .pn-vline__items li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-brief__card,
  .page-news .pn-vline,
  .page-news a,
  .page-news .pn-timeline__node,
  .page-news .pn-timeline__node::after {
    transition: none;
  }
}