/* ==========================================================================
   赛场专栏 /articles/
   页面作用域：.page-news
   ========================================================================== */

.page-news {
  display: block;
  background: var(--ink-deep);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

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

.page-news img {
  display: block;
  max-width: 100%;
}

/* ---------- 通用章节头 ---------- */

.page-news .sec-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 16px;
}

.page-news .news-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  min-width: 36px;
  height: 24px;
  padding: 0 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  border: 1px solid var(--line-gold);
  border-radius: 2px;
}

.page-news .section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-bright);
}

.page-news .section-label::before {
  content: "";
  flex: none;
  width: 26px;
  height: 1px;
  background: var(--gold);
}

.page-news h2 {
  margin: 0 0 clamp(28px, 4vw, 48px);
  font-size: clamp(23px, 3.3vw, 36px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

/* ==========================================================================
   01 页头
   ========================================================================== */

.page-news .news-masthead {
  position: relative;
  padding: clamp(26px, 4vw, 44px) 0 clamp(46px, 6vw, 82px);
  background: var(--ink-deep);
  overflow: hidden;
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(201, 162, 39, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 162, 39, 0.09) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.12));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.12));
  pointer-events: none;
}

.page-news .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-news .masthead-body {
  max-width: 900px;
}

.page-news .news-masthead h1 {
  margin: 18px 0 20px;
  font-size: clamp(40px, 7.4vw, 84px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-news .masthead-lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.85;
}

.page-news .masthead-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .masthead-jump a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  font-size: 13px;
  line-height: 1;
  color: var(--paper);
  text-decoration: none;
  background: rgba(18, 58, 46, 0.72);
  border: 1px solid var(--line-gold);
  border-radius: 2px;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-news .masthead-jump a span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  transition: color 0.22s var(--ease);
}

.page-news .masthead-jump a:hover,
.page-news .masthead-jump a:focus-visible {
  color: var(--gold-bright);
  border-color: var(--gold);
  background: rgba(30, 91, 74, 0.85);
}

.page-news .masthead-jump a:hover span,
.page-news .masthead-jump a:focus-visible span {
  color: var(--gold-bright);
}

/* ==========================================================================
   02 本期头条
   ========================================================================== */

.page-news .news-lead {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0 clamp(56px, 8vw, 104px);
  background: var(--ink-deep);
}

.page-news .lead-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 32px);
}

.page-news .lead-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-panel);
  border: 1px solid var(--line-gold);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .lead-card:hover,
.page-news .lead-card:focus-within {
  border-color: var(--gold);
  transform: translateY(-4px);
}

.page-news .lead-card__frame {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 26px));
  background: var(--ink-deep);
}

.page-news .lead-card__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 0.9s var(--ease);
}

.page-news .lead-card:hover .lead-card__frame img {
  transform: scale(1.07);
}

.page-news .lead-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 3vw, 34px);
}

.page-news .lead-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .lead-card__body h3 {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 800;
  line-height: 1.36;
  color: var(--paper);
}

.page-news .lead-card__body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--paper);
  opacity: 0.8;
}

.page-news .lead-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--moss-gray);
}

/* ==========================================================================
   03 最新简报列表（纸面区）
   ========================================================================== */

.page-news .news-briefs {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0 clamp(56px, 8vw, 104px);
  background: var(--paper);
  color: var(--ink);
}

.page-news .news-briefs::before,
.page-news .news-versions::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  width: 72px;
  height: 3px;
  background: var(--gold);
}

.page-news .news-briefs .section-label,
.page-news .news-versions .section-label {
  color: var(--gold-dark);
}

.page-news .news-briefs .section-label::before,
.page-news .news-versions .section-label::before {
  background: var(--gold-dark);
}

.page-news .news-briefs .news-index,
.page-news .news-versions .news-index {
  color: var(--gold-dark);
  border-color: rgba(110, 90, 31, 0.42);
}

.page-news .brief-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--paper-edge);
}

.page-news .brief-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas:
    "no tag"
    "no main"
    "no meta";
  gap: 8px 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--paper-edge);
  transition: background-color 0.24s var(--ease);
}

.page-news .brief-item:hover,
.page-news .brief-item:focus-within {
  background: rgba(216, 207, 187, 0.24);
}

.page-news .brief-item__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--gold-dark);
}

.page-news .brief-item__tag {
  grid-area: tag;
  justify-self: start;
  align-self: start;
}

.page-news .brief-item__main {
  grid-area: main;
  min-width: 0;
}

.page-news .brief-item__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  transition: color 0.22s var(--ease);
}

.page-news .brief-item:hover .brief-item__title,
.page-news .brief-item:focus-within .brief-item__title {
  color: var(--gold-dark);
}

.page-news .brief-item__sum {
  max-height: 200px;
  margin: 6px 0 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(16, 22, 20, 0.68);
  opacity: 1;
  transition: max-height 0.32s var(--ease), opacity 0.32s var(--ease), margin 0.32s var(--ease);
}

.page-news .brief-item__meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--gold-dark);
}

/* ==========================================================================
   04 专题系列
   ========================================================================== */

.page-news .news-series {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0 clamp(56px, 8vw, 104px);
  background: var(--ink-deep);
}

.page-news .news-figure {
  margin: 0 0 clamp(28px, 4vw, 46px);
}

.page-news .news-figure__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 30px));
  background: var(--moss);
}

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

.page-news .news-figure__caption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--moss-gray);
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-gold);
  border: 1px solid var(--line-gold);
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--ink-deep);
  transition: background-color 0.28s var(--ease);
}

.page-news .series-card:hover,
.page-news .series-card:focus-within {
  background: var(--ink-panel);
}

.page-news .series-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .series-card h3 {
  margin: 0;
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .series-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--paper);
  opacity: 0.78;
}

.page-news .series-card__meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.page-news .series-card__meta dt {
  color: var(--moss-gray);
}

.page-news .series-card__meta dd {
  margin: 0;
  color: var(--gold-bright);
}

/* ==========================================================================
   05 版本迭代记录（纸面区）
   ========================================================================== */

.page-news .news-versions {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0 clamp(56px, 8vw, 104px);
  background: var(--paper);
  color: var(--ink);
}

.page-news .version-figure {
  margin: 0 0 clamp(30px, 4vw, 48px);
  padding: 10px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--paper-edge);
}

.page-news .version-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-news .version-log {
  position: relative;
  margin: 0;
  padding: 4px 0 4px 28px;
  border-left: 1px solid var(--paper-edge);
}

.page-news .version-entry {
  position: relative;
  border-bottom: 1px dashed var(--paper-edge);
}

.page-news .version-entry:last-child {
  border-bottom: 0;
}

.page-news .version-entry::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 24px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-news .version-entry > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 5px 18px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .version-entry > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold-dark);
}

.page-news .version-entry[open] > summary::after {
  content: "−";
}

.page-news .version-entry__no {
  flex: none;
  width: 88px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--gold-dark);
}

.page-news .version-entry__title {
  flex: 1 1 260px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-news .version-entry__scope {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(16, 22, 20, 0.55);
}

.page-news .version-entry__body {
  padding: 0 0 20px;
}

.page-news .version-entry__body ul {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
}

.page-news .version-entry__body li {
  position: relative;
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(16, 22, 20, 0.76);
}

.page-news .version-entry__body li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

.page-news .version-entry__body li:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   06 订阅与继续阅读
   ========================================================================== */

.page-news .news-subscribe {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0 clamp(64px, 9vw, 120px);
  background: var(--ink-deep);
}

.page-news .subscribe-box {
  margin: 0 0 clamp(40px, 6vw, 72px);
  background: var(--ink-panel);
  border: 1px solid var(--line-gold);
}

.page-news .subscribe-box__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding: clamp(20px, 2.6vw, 30px) clamp(20px, 3vw, 36px);
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 800;
  color: var(--gold-bright);
  cursor: pointer;
  list-style: none;
}

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

.page-news .subscribe-box__hint {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--moss-gray);
}

.page-news .subscribe-box[open] .subscribe-box__hint {
  color: var(--gold);
}

.page-news .subscribe-box__body {
  padding: 0 clamp(20px, 3vw, 36px) clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--line-gold);
}

.page-news .subscribe-box__body p {
  margin: 22px 0 18px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.85;
}

.page-news .subscribe-box__body ul {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-news .subscribe-box__body li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--paper);
  opacity: 0.78;
}

.page-news .subscribe-box__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 1px;
  background: var(--ember);
}

.page-news .next-read__title {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

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

.page-news .next-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(18, 58, 46, 0.7);
  border: 1px solid var(--line-gold);
  text-decoration: none;
  color: var(--paper);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-news .next-card:hover,
.page-news .next-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold);
  background: var(--ink-panel);
}

.page-news .next-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .next-card h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .next-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.72;
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (min-width: 700px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 900px) {
  .page-news .lead-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .lead-card:nth-child(1) {
    transform: translateY(-10px);
  }

  .page-news .lead-card:nth-child(2) {
    transform: translateY(22px);
  }

  .page-news .lead-card:nth-child(1):hover,
  .page-news .lead-card:nth-child(1):focus-within {
    transform: translateY(-14px);
  }

  .page-news .lead-card:nth-child(2):hover,
  .page-news .lead-card:nth-child(2):focus-within {
    transform: translateY(18px);
  }
}

@media (min-width: 860px) {
  .page-news .brief-item {
    grid-template-columns: 56px 92px minmax(0, 1fr) 234px;
    grid-template-areas: "no tag main meta";
    align-items: center;
    gap: 0 20px;
    padding: 22px 0;
  }

  .page-news .brief-item__title {
    font-size: 15.5px;
  }

  .page-news .brief-item__sum {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
  }

  .page-news .brief-item:hover .brief-item__sum,
  .page-news .brief-item:focus-within .brief-item__sum {
    max-height: 120px;
    margin-top: 6px;
    opacity: 1;
  }

  .page-news .brief-item__meta {
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    text-align: right;
  }
}

@media (min-width: 1080px) {
  .page-news .series-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .next-read__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 560px) {
  .page-news .masthead-jump a {
    padding: 8px 12px;
    font-size: 12.5px;
  }

  .page-news .version-entry__scope {
    flex: 1 1 100%;
  }

  .page-news .version-entry__no {
    width: auto;
  }

  .page-news .version-log {
    padding-left: 20px;
  }

  .page-news .version-entry::before {
    left: -26px;
    top: 22px;
  }
}

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