/* ===== 资讯观察页专属样式 ===== */
.page-news {
  --news-rot: 0deg;
}

/* ---------- Hero 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  padding: 40px 0 64px;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -18%;
  width: 55%;
  height: 55%;
  background: var(--gradient);
  transform: rotate(12deg);
  z-index: 0;
}

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

.page-news .news-breadcrumb {
  margin-bottom: 28px;
}

.page-news .news-hero-inner {
  display: grid;
  gap: 36px;
}

.page-news .news-hero-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.page-news .news-hero-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--peach);
  border: 1px solid var(--graphite);
  background: var(--paper);
  padding: 6px 10px;
  margin: 0;
}

.page-news .news-hero-title {
  font-family: var(--font-heading);
  font-weight: 200;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-news .news-hero-accent {
  color: var(--peach);
}

.page-news .news-hero-desc {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--graphite);
  max-width: 480px;
  margin: 0;
}

.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-news .news-hero-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-news .news-hero-svg {
  width: min(100%, 240px);
  height: auto;
  align-self: flex-end;
}

.page-news .news-hero-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 0;
}

/* ---------- 区块辅助说明 ---------- */
.page-news .section-desc {
  margin: 10px 0 0;
  max-width: 560px;
  color: var(--muted);
  font-size: 0.875rem;
}

/* ---------- 横幅与列表底图 ---------- */
.page-news .news-banner-img {
  display: block;
  width: 100%;
  height: auto;
  margin: 32px 0 40px;
  border: 1px solid var(--graphite);
}

.page-news .news-footer-img {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  margin: 48px auto 0;
  border: 1px solid var(--graphite);
}

/* ---------- 分类筛选标签 ---------- */
.page-news .news-filter-wrap {
  position: relative;
}

.page-news .news-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.page-news .news-tab-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  opacity: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  pointer-events: none;
}

.page-news .news-tab-label {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--graphite);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1;
  letter-spacing: 0.05em;
  cursor: pointer;
  user-select: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-news .news-tab-input:focus-visible + .news-tab-label {
  outline: 2px solid var(--peach);
  outline-offset: 2px;
}

.page-news .news-tab-input:checked + .news-tab-label {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ---------- 瀑布流卡片 ---------- */
.page-news .news-stream {
  column-count: 1;
  column-gap: 20px;
}

.page-news .news-card {
  --news-rot: 0deg;
  display: flex;
  flex-direction: column;
  width: 100%;
  break-inside: avoid;
  margin: 0 0 20px;
  padding: 22px;
  background: var(--paper);
  border: 1px solid var(--graphite);
  border-top: 3px solid var(--peach);
  gap: 12px;
  transform: rotate(var(--news-rot));
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-news .news-card:nth-child(3n+2) {
  --news-rot: 0.6deg;
  border-top-color: var(--yellow);
}

.page-news .news-card:nth-child(3n) {
  --news-rot: -0.4deg;
  border-top-color: var(--strawberry);
}

.page-news .news-card:hover {
  transform: translateX(6px) rotate(var(--news-rot));
  box-shadow: 6px 6px 0 var(--ghost);
}

.page-news .news-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-news .news-card-time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
}

.page-news .news-card-title {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.125rem;
  line-height: 1.35;
  margin: 0;
}

.page-news .news-card-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--graphite);
  margin: 0;
}

.page-news .news-card-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--peach);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  align-self: flex-start;
}

.page-news .news-card-link:hover {
  border-bottom-color: var(--peach);
}

/* ---------- 筛选显示逻辑 ---------- */
.page-news .news-tab-input:checked ~ .news-stream .news-card {
  display: none;
}

.page-news #news-tab-all:checked ~ .news-stream .news-card,
.page-news #news-tab-announce:checked ~ .news-stream .news-card[data-cat="announce"],
.page-news #news-tab-guide:checked ~ .news-stream .news-card[data-cat="guide"],
.page-news #news-tab-download:checked ~ .news-stream .news-card[data-cat="download"],
.page-news #news-tab-faq:checked ~ .news-stream .news-card[data-cat="faq"],
.page-news #news-tab-operation:checked ~ .news-stream .news-card[data-cat="operation"] {
  display: flex;
}

/* ---------- 专题系列 ---------- */
.page-news .news-topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-news .news-topic-media,
.page-news .news-log-media {
  margin: 0;
  padding: 12px;
  background: var(--paper);
  border: 1px solid var(--graphite);
}

.page-news .news-topic-media img,
.page-news .news-log-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .news-topic-caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-align: right;
  letter-spacing: 0.05em;
}

.page-news .news-topic-items {
  display: grid;
  gap: 16px;
}

.page-news .news-topic-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 20px;
  background: var(--paper);
  border: 1px solid var(--graphite);
  position: relative;
}

.page-news .news-topic-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 3px;
  background: var(--peach);
}

.page-news .news-topic-item:nth-child(2n)::before {
  background: var(--yellow);
}

.page-news .news-topic-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 200;
  line-height: 1;
  color: var(--peach);
}

.page-news .news-topic-item:nth-child(2n) .news-topic-num {
  color: var(--yellow);
}

.page-news .news-topic-title {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.25rem;
  margin: 0 0 8px;
}

.page-news .news-topic-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--graphite);
  margin: 0 0 12px;
}

.page-news .news-topic-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-topic-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ghost);
  padding-bottom: 2px;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-news .news-topic-links a:hover {
  color: var(--peach);
  border-bottom-color: var(--peach);
}

/* ---------- 更新日志 ---------- */
.page-news .news-log-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

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

.page-news .news-log-item {
  background: var(--paper);
  border: 1px solid var(--graphite);
}

.page-news .news-log-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.0625rem;
  transition: background 0.25s ease;
}

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

.page-news .news-log-item summary:hover {
  background: var(--ghost);
}

.page-news .news-log-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--peach);
  transition: transform 0.3s ease;
}

.page-news .news-log-item[open] summary {
  border-bottom: 1px solid var(--ghost);
}

.page-news .news-log-item[open] summary::after {
  transform: rotate(45deg);
}

.page-news .news-log-year {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--peach);
  background: var(--ghost);
  border: 1px solid var(--ghost);
  padding: 2px 8px;
}

.page-news .news-log-label {
  font-size: 1rem;
  font-weight: 500;
}

.page-news .news-log-state {
  margin-left: auto;
}

.page-news .news-log-body {
  padding: 16px 20px 20px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--graphite);
}

.page-news .news-log-body p {
  margin: 0 0 10px;
}

.page-news .news-log-body ul {
  margin: 0;
  padding-left: 18px;
}

/* ---------- 底部关注区 ---------- */
.page-news .news-follow {
  background: var(--ink);
  padding: 64px 0;
}

.page-news .news-follow-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-news .news-follow-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--peach);
  margin: 0;
}

.page-news .news-follow-title {
  font-family: var(--font-heading);
  font-weight: 200;
  font-size: clamp(1.75rem, 3.6vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-news .news-follow-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.72;
  margin: 0;
  max-width: 520px;
}

.page-news .news-follow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-news .news-follow-light {
  border: 1px solid var(--paper);
  color: var(--paper);
  background: transparent;
}

.page-news .news-follow-light:hover {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-news .news-hero {
    padding: 56px 0 96px;
  }

  .page-news .news-hero-inner {
    grid-template-columns: 1.35fr 1fr;
    gap: 48px;
    align-items: end;
  }

  .page-news .news-hero-svg {
    width: 260px;
  }

  .page-news .news-stream {
    column-count: 2;
  }

  .page-news .news-topic-grid {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
  }

  .page-news .news-log-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .news-stream {
    column-count: 3;
    column-gap: 24px;
  }

  .page-news .news-topic-items {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .news-follow {
    padding: 88px 0;
  }
}