/* ================= 品牌专栏 · 页面专属样式 ================= */

.page-news {
  --pn-side: 100%;
  --pn-gap: 0px;
  --pn-sticky-top: calc(var(--head-h) + 12px);
  color: var(--on-dark);
  background: var(--ink);
}

@media (min-width: 1024px) {
  .page-news {
    --pn-side: 300px;
    --pn-gap: 64px;
    --pn-sticky-top: calc(var(--head-h) + 72px);
  }
}

/* ---------- 首屏 ---------- */

.page-news .pn-hero {
  position: relative;
  background: var(--ink);
  padding: 32px 0 48px;
  overflow: hidden;
}

.page-news .pn-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(199, 205, 214, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(199, 205, 214, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

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

.page-news .pn-hero .crumbs,
.page-news .pn-hero .crumbs a {
  color: var(--on-dark-3);
}

.page-news .pn-hero .crumbs a:hover,
.page-news .pn-hero .crumbs a:focus-visible {
  color: var(--aurora);
}

.page-news .pn-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 22px 0 18px;
}

.page-news .pn-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.6vw, 76px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 26px;
  max-width: 20ch;
}

.page-news .pn-lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-dark-2);
  margin: 0;
  max-width: 46ch;
  padding-left: 18px;
  border-left: 1px solid rgba(52, 226, 198, 0.55);
}

.page-news .pn-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 40px 0 0;
  border: var(--hair-dark);
  background: rgba(199, 205, 214, 0.18);
}

.page-news .pn-meta-item {
  background: var(--ink);
  padding: 15px 16px;
}

.page-news .pn-meta-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--on-dark-3);
  margin: 0;
}

.page-news .pn-meta-item dd {
  margin: 9px 0 0;
  font-size: 15px;
  color: var(--on-dark);
}

/* ---------- 置顶版本条 ---------- */

.page-news .pn-version {
  position: sticky;
  top: var(--head-h);
  z-index: 20;
  background: var(--deep);
  border-bottom: 1px solid rgba(52, 226, 198, 0.32);
  overflow: hidden;
}

.page-news .pn-version-bg {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  pointer-events: none;
  display: none;
}

@media (min-width: 768px) {
  .page-news .pn-version-bg {
    display: block;
  }
}

.page-news .pn-version-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: none;
}

.page-news .pn-version-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  padding: 13px 0;
}

.page-news .pn-version-code {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid rgba(194, 161, 90, 0.55);
  padding: 3px 10px;
  flex: none;
}

.page-news .pn-version-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-dark-2);
  flex: 1 1 220px;
  min-width: 0;
}

.page-news .pn-version-text strong {
  color: var(--white);
  font-weight: 500;
}

.page-news .pn-version-link {
  flex: none;
  font-size: 13px;
  color: var(--aurora);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 226, 198, 0.45);
  padding-bottom: 2px;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-news .pn-version-link:hover,
.page-news .pn-version-link:focus-visible {
  border-bottom-color: var(--aurora);
  color: var(--white);
}

/* ---------- 主体：左索引 + 右条目流 ---------- */

.page-news .pn-body {
  background: var(--mist);
  color: var(--ink);
  padding: 40px 0 56px;
}

@media (min-width: 768px) {
  .page-news .pn-body {
    padding: 64px 0 88px;
  }
}

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

@media (min-width: 1024px) {
  .page-news .pn-body-inner {
    grid-template-columns: var(--pn-side) minmax(0, 1fr);
    gap: var(--pn-gap);
  }
}

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

@media (min-width: 1024px) {
  .page-news .pn-side {
    position: sticky;
    top: var(--pn-sticky-top);
    align-self: start;
  }
}

.page-news .pn-side-block + .pn-side-block {
  margin-top: 32px;
}

.page-news .pn-side-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--rock);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

/* 分类分段条 */

.page-news .pn-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line);
}

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

@media (min-width: 1024px) {
  .page-news .pn-tabs {
    flex-direction: column;
    overflow: visible;
    border-bottom: 0;
  }
}

.page-news .pn-tab {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  color: var(--rock);
  padding: 11px 14px;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  text-align: left;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .pn-tab-idx {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--gold-2);
}

.page-news .pn-tab-count {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--rock);
}

@media (min-width: 1024px) {
  .page-news .pn-tab {
    width: 100%;
    padding: 12px 0 12px 14px;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
  }

  .page-news .pn-tab-idx {
    flex: none;
    width: 22px;
  }

  .page-news .pn-tab-count {
    margin-left: auto;
  }
}

.page-news .pn-tab[aria-selected="true"] {
  color: var(--ink);
  font-weight: 500;
}

.page-news .pn-tab[aria-selected="true"] .pn-tab-count {
  color: var(--gold-2);
}

@media (max-width: 1023px) {
  .page-news .pn-tab[aria-selected="true"] {
    border-bottom-color: var(--aurora-2);
  }
}

@media (min-width: 1024px) {
  .page-news .pn-tab[aria-selected="true"] {
    border-left-color: var(--aurora-2);
  }
}

.page-news .pn-tab:focus-visible {
  outline: 2px solid var(--aurora-2);
  outline-offset: 2px;
}

/* 系列精简索引 */

.page-news .pn-series-mini {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .pn-series-mini li {
  border-bottom: 1px solid var(--line);
}

.page-news .pn-series-mini a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
}

.page-news .pn-series-mini a > span:first-child {
  background-image: linear-gradient(var(--aurora-2), var(--aurora-2));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 200ms var(--ease);
}

.page-news .pn-series-mini a:hover > span:first-child,
.page-news .pn-series-mini a:focus-visible > span:first-child {
  background-size: 100% 1px;
}

.page-news .pn-series-mini a .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rock);
  flex: none;
}

/* ---------- 条目流 ---------- */

.page-news .pn-stream {
  min-width: 0;
}

.page-news .entry-list {
  display: flex;
  flex-direction: column;
}

.page-news .entry-list + .entry-list {
  margin-top: 0;
}

.page-news .entry-item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  column-gap: 18px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.page-news .entry-item:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-news .entry-when {
  writing-mode: vertical-rl;
  white-space: nowrap;
  align-self: start;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--rock);
  margin: 2px 0 0;
  line-height: 1;
}

.page-news .entry-main {
  min-width: 0;
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.page-news .entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .entry-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--gold-2);
  border: 1px solid rgba(138, 106, 34, 0.4);
  padding: 2px 8px;
}

.page-news .entry-batch {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-news .entry-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 0 0 10px;
}

@media (min-width: 768px) {
  .page-news .entry-title {
    font-size: 21px;
  }
}

.page-news .entry-sum {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--rock);
  max-width: 64ch;
}

.page-news .entry-lines {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--gold-2);
}

.page-news .entry-more {
  margin-top: 14px;
}

.page-news .entry-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--aurora-2);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

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

.page-news .entry-more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
}

.page-news .entry-more[open] summary::after {
  content: "\2013";
}

.page-news .entry-more summary:hover,
.page-news .entry-more summary:focus-visible {
  border-bottom-color: var(--aurora-2);
}

.page-news .entry-more summary:focus-visible {
  outline: 2px solid var(--aurora-2);
  outline-offset: 3px;
}

.page-news .entry-detail {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--rock);
}

.page-news .entry-detail ul {
  margin: 0;
  padding-left: 18px;
}

.page-news .entry-detail li + li {
  margin-top: 6px;
}

/* 面板内配图 */

.page-news .pn-panel-figure {
  margin: 0 0 24px;
  max-width: 320px;
}

.page-news .pn-panel-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* 宽度递减：越旧的条目越窄 */

@media (min-width: 960px) {
  .page-news .entry-item:nth-child(1) {
    width: 100%;
  }

  .page-news .entry-item:nth-child(2) {
    width: 94%;
  }

  .page-news .entry-item:nth-child(3) {
    width: 88%;
  }

  .page-news .entry-item:nth-child(4) {
    width: 81%;
  }
}

/* ---------- 专题系列 ---------- */

.page-news .pn-series {
  background: var(--white);
  color: var(--ink);
  padding: 56px 0 64px;
  border-top: 1px solid var(--line);
}

@media (min-width: 768px) {
  .page-news .pn-series {
    padding: 80px 0 96px;
  }
}

.page-news .pn-series .pn-kicker {
  color: var(--gold-2);
  margin: 0 0 16px;
}

.page-news .pn-series-head {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-news .pn-series-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.3vw, 42px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 16px;
}

.page-news .pn-series-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--rock);
  max-width: 54ch;
}

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

@media (min-width: 960px) {
  .page-news .pn-series-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

.page-news .pn-series-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--mist);
}

.page-news .pn-series-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .pn-series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-news .pn-series-list li {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}

.page-news .pn-series-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .pn-series-idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-2);
  margin-bottom: 10px;
}

.page-news .pn-series-list h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-news .pn-series-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--rock);
  max-width: 54ch;
}

.page-news .pn-series-status {
  margin-top: 12px !important;
  font-size: 13px !important;
  color: var(--rock);
}

.page-news .pn-series-status b {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
}

/* ---------- 更新节奏 ---------- */

.page-news .pn-rhythm {
  background: var(--ink);
  color: var(--on-dark);
  padding: 0 0 64px;
}

.page-news .pn-rhythm-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: cover;
  opacity: 0.55;
  margin-bottom: 44px;
}

@media (min-width: 768px) {
  .page-news .pn-rhythm {
    padding-bottom: 88px;
  }

  .page-news .pn-rhythm-img {
    max-height: 340px;
    margin-bottom: 60px;
  }
}

.page-news .pn-rhythm-inner {
  min-width: 0;
}

.page-news .pn-rhythm-head {
  max-width: 58ch;
  margin-bottom: 32px;
}

.page-news .pn-rhythm-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.3vw, 42px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0;
}

.page-news .pn-rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  border-top: var(--hair-dark);
}

@media (min-width: 768px) {
  .page-news .pn-rhythm-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
}

.page-news .pn-rhythm-item {
  border-bottom: var(--hair-dark);
  padding: 20px 0;
}

.page-news .pn-rhythm-item dt {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
  margin: 0 0 10px;
}

.page-news .pn-rhythm-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  flex: none;
}

.page-news .pn-rhythm-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--on-dark-2);
  max-width: 46ch;
}

.page-news .pn-tail {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 40px 0 0;
  padding-top: 24px;
  border-top: var(--hair-dark);
}

.page-news .pn-tail a {
  font-size: 14px;
  color: var(--on-dark-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 205, 214, 0.35);
  padding-bottom: 2px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .pn-tail a:hover,
.page-news .pn-tail a:focus-visible {
  color: var(--aurora);
  border-bottom-color: var(--aurora);
}

.page-news .pn-tail a:focus-visible,
.page-news .pn-version-link:focus-visible {
  outline: 2px solid var(--aurora);
  outline-offset: 3px;
}

/* ---------- 无障碍与降级 ---------- */

.page-news .entry-list:focus-visible {
  outline: 2px solid var(--aurora-2);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}