.page-news {
  --news-sep: rgba(143, 179, 168, 0.24);
  --news-sep-strong: rgba(43, 240, 200, 0.32);
  --news-rail: 128px;
  background: var(--ink);
  color: var(--on-dark);
  overflow-x: hidden;
}

.page-news h1,
.page-news h2,
.page-news h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0;
}

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

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  padding: 0 0 56px;
  background:
    radial-gradient(circle at 84% 8%, rgba(43, 240, 200, 0.14), transparent 58%),
    radial-gradient(circle at 6% 92%, rgba(255, 106, 43, 0.08), transparent 46%),
    var(--ink);
}

.page-news .news-hero .wrap {
  padding-top: 26px;
}

.page-news .news-hero__body {
  margin-top: 30px;
  max-width: 780px;
}

.page-news .news-hero__body h1 {
  margin: 18px 0 20px;
  font-size: clamp(32px, 7.4vw, 58px);
  color: var(--on-dark);
}

.page-news .news-hero__body h1::after {
  content: "";
  display: block;
  width: 62px;
  height: 6px;
  margin-top: 22px;
  background: var(--cyan);
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(232, 242, 238, 0.86);
}

.page-news .news-hero__figure {
  margin: 40px 0 0;
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  background: var(--ink-2);
  box-shadow: var(--hard);
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 600;
  object-fit: cover;
}

.page-news .news-hero__figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin: 32px 0 0;
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  background: var(--ink-3);
  overflow: hidden;
}

.page-news .news-metrics__item {
  padding: 16px 14px;
  background: var(--ink-2);
}

.page-news .news-metrics dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-news .news-metrics dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

/* ---------- 版本索引轴 ---------- */

.page-news .news-axis {
  background: var(--ink-2);
  border-top: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
}

.page-news .news-axis__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-axis__title {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

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

.page-news .news-axis__list li {
  flex: 0 0 auto;
}

.page-news .news-axis__tick {
  display: inline-block;
  padding: 5px 11px;
  border: 2px solid var(--ink-3);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-news .news-axis__tick:hover,
.page-news .news-axis__tick:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .news-axis__tick--now {
  color: var(--orange);
  border-color: var(--orange);
}

.page-news .news-axis__tick--now:hover,
.page-news .news-axis__tick--now:focus-visible {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

/* ---------- 近期更新 ---------- */

.page-news .news-log {
  padding: 60px 0 68px;
  background: var(--ink);
}

.page-news .news-log h2,
.page-news .news-v4 h2,
.page-news .news-cats h2 {
  font-size: clamp(26px, 5.6vw, 38px);
  color: var(--on-dark);
}

.page-news .news-log__intro,
.page-news .news-cats__intro {
  margin: 12px 0 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 242, 238, 0.72);
}

.page-news .news-log__list {
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--news-sep-strong);
}

.page-news .news-entry {
  border-bottom: 2px solid var(--news-sep);
}

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

.page-news .news-entry__summary {
  position: relative;
  display: block;
  padding: 22px 34px 22px 12px;
  margin: 0 -12px;
  list-style: none;
  cursor: pointer;
  transition: background-color var(--ease);
}

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

.page-news .news-entry__summary:hover {
  background: rgba(30, 59, 53, 0.6);
}

.page-news .news-entry__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .news-entry__summary::after {
  content: "+";
  position: absolute;
  top: 22px;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--mist);
  transition: color var(--ease);
}

.page-news .news-entry__details[open] > .news-entry__summary::after {
  content: "−";
  color: var(--cyan);
}

.page-news .news-entry__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

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

.page-news .news-entry__ver {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-news .news-entry__tag {
  padding: 2px 8px;
  border: 2px solid var(--ink-3);
  border-radius: 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  background: var(--ink-2);
}

.page-news .news-entry__when {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(143, 179, 168, 0.9);
}

.page-news .news-entry__title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.42;
  color: var(--on-dark);
}

.page-news .news-entry__excerpt {
  display: block;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(232, 242, 238, 0.68);
}

.page-news .news-entry__more {
  margin: 0 0 24px;
  padding: 18px 18px 18px 18px;
  background: var(--ink-2);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius);
}

.page-news .news-entry__more p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(232, 242, 238, 0.82);
}

.page-news .news-entry__more p:last-child {
  margin-bottom: 0;
}

/* 首条强调 */
.page-news .news-entry--lead .news-entry__summary {
  background: rgba(15, 33, 56, 0.85);
}

.page-news .news-entry--lead .news-entry__ver {
  color: var(--orange);
}

.page-news .news-entry--lead .news-entry__title {
  font-size: 20px;
}

.page-news .news-entry--lead .news-entry__tag {
  border-color: rgba(255, 106, 43, 0.55);
  color: var(--orange);
}

/* ---------- V4 ---------- */

.page-news .news-v4 {
  padding: 60px 0 68px;
  background: var(--ink-2);
  border-top: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
}

.page-news .news-v4__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-news .news-v4__figure {
  margin: 0;
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  background: var(--ink);
  box-shadow: var(--hard);
}

.page-news .news-v4__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

.page-news .news-v4__figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-v4__intro {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 242, 238, 0.78);
}

.page-news .news-v4__list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-news .news-v4__list li {
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
}

.page-news .news-v4__list h3 {
  margin-bottom: 6px;
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-news .news-v4__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(232, 242, 238, 0.78);
}

.page-news .news-v4__link {
  margin: 26px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(232, 242, 238, 0.7);
}

.page-news .news-v4__link a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 按栏目浏览 ---------- */

.page-news .news-cats {
  padding: 60px 0 68px;
  background: var(--ink);
}

.page-news .news-cats__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 32px;
}

.page-news .news-cats__figure {
  margin: 0;
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  background: var(--ink-2);
  box-shadow: var(--hard);
}

.page-news .news-cats__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 600;
  object-fit: cover;
}

.page-news .news-cats__figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-news .news-cat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background: var(--ink-2);
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  box-shadow: var(--hard-sm);
  color: var(--on-dark);
  text-decoration: none;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-news .news-cat:hover,
.page-news .news-cat:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--hard);
  border-color: var(--cyan);
}

.page-news .news-cat__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--on-dark);
}

.page-news .news-cat__desc {
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(232, 242, 238, 0.7);
}

.page-news .news-cat__meta {
  margin-top: auto;
  padding-top: 10px;
  border-top: 2px solid var(--ink-3);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* ---------- 更新节奏 ---------- */

.page-news .news-cadence {
  padding: 60px 0 68px;
  background: var(--paper);
  color: var(--paper-ink);
  border-top: 2px solid var(--ink-3);
}

.page-news .news-cadence h2 {
  font-size: clamp(26px, 5.6vw, 38px);
  color: var(--paper-ink);
}

.page-news .news-cadence .sec-num,
.page-news .news-feedback .sec-num {
  color: var(--orange);
}

.page-news .news-cadence__intro {
  margin: 12px 0 0;
  max-width: 580px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-ink);
}

.page-news .news-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 32px;
}

.page-news .news-cadence__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-cadence__item {
  padding: 14px 16px;
  background: var(--mint);
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  box-shadow: var(--hard-sm);
}

.page-news .news-cadence__item dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted-ink);
}

.page-news .news-cadence__item dd {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper-ink);
}

.page-news .news-cadence__link {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-ink);
}

.page-news .news-cadence__link a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-cadence__figure {
  margin: 0;
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  background: var(--mint);
  box-shadow: var(--hard);
}

.page-news .news-cadence__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 500;
  object-fit: cover;
}

.page-news .news-cadence__figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--paper-ink);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted-ink);
}

/* ---------- 反馈 ---------- */

.page-news .news-feedback {
  padding: 60px 0 84px;
  background: var(--mint);
  color: var(--paper-ink);
  border-top: 2px solid var(--paper-ink);
}

.page-news .news-feedback h2 {
  font-size: clamp(24px, 5.2vw, 36px);
  color: var(--paper-ink);
}

.page-news .news-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 30px;
}

.page-news .news-feedback__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-ink);
}

.page-news .news-feedback__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .news-feedback__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper-ink);
}

.page-news .news-feedback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--orange);
}

.page-news .news-feedback__contact {
  margin: 22px 0 0;
  padding: 12px 14px;
  background: var(--paper);
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--paper-ink);
  word-break: break-word;
}

.page-news .news-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-feedback__aside {
  padding: 20px 18px;
  background: var(--paper);
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  box-shadow: var(--hard);
}

.page-news .news-feedback__aside-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--paper-ink);
}

.page-news .news-feedback__aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-ink);
}

.page-news .news-feedback__aside-link {
  display: inline-block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-news .news-metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .news-metrics dd {
    font-size: 24px;
  }

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

  .page-news .news-feedback__actions .btn {
    min-width: 168px;
    text-align: center;
  }
}

@media (min-width: 760px) {
  .page-news .news-hero {
    padding-bottom: 72px;
  }

  .page-news .news-log,
  .page-news .news-v4,
  .page-news .news-cats,
  .page-news .news-cadence {
    padding-top: 76px;
    padding-bottom: 84px;
  }

  .page-news .news-entry__grid {
    grid-template-columns: var(--news-rail) 1fr;
    gap: 24px;
    align-items: start;
  }

  .page-news .news-entry__summary {
    padding: 24px 40px 24px 14px;
    margin: 0 -14px;
  }

  .page-news .news-entry__summary::after {
    top: 24px;
    right: 14px;
  }

  .page-news .news-entry__more {
    margin-left: calc(var(--news-rail) + 24px);
    padding: 20px 22px;
  }

  .page-news .news-entry__title {
    font-size: 19px;
  }

  .page-news .news-entry--lead .news-entry__title {
    font-size: 22px;
  }
}

@media (min-width: 900px) {
  .page-news .news-v4__grid {
    grid-template-columns: 5fr 6fr;
    gap: 48px;
    align-items: start;
  }

  .page-news .news-cats__layout {
    grid-template-columns: 4fr 7fr;
    gap: 36px;
    align-items: start;
  }

  .page-news .news-cadence__grid {
    grid-template-columns: 6fr 5fr;
    gap: 44px;
    align-items: start;
  }

  .page-news .news-feedback__grid {
    grid-template-columns: 7fr 4fr;
    gap: 44px;
    align-items: start;
  }

  .page-news .news-hero__lede {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-axis__tick,
  .page-news .news-cat,
  .page-news .news-entry__summary,
  .page-news .news-entry__summary::after {
    transition: none;
  }

  .page-news .news-cat:hover,
  .page-news .news-cat:focus-visible {
    transform: none;
  }
}