/* ===== 观察报告页 page-news ===== */
.page-news {
  --news-side-w: 344px;
  --news-gap: 56px;
  background: var(--bg);
  color: var(--body-text);
}

/* ---- 面包屑 ---- */
.page-news .news-crumbs {
  padding-top: 20px;
  padding-bottom: 14px;
}
.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--steel);
}
.page-news .crumbs a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-news .crumbs a:hover { color: var(--lime); border-color: var(--lime); }
.page-news .crumbs span[aria-hidden] { color: var(--line); }

/* ---- 开篇横幅 ---- */
.page-news .news-banner {
  margin: 0;
  position: relative;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}
.page-news .news-banner img {
  display: block;
  width: 100%;
  height: clamp(158px, 30vw, 380px);
  object-fit: cover;
  object-position: center 62%;
}
.page-news .news-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(8, 19, 15, 0) 42%, rgba(8, 19, 15, .88) 100%);
}

/* ---- 报头 ---- */
.page-news .news-masthead-grid {
  display: grid;
  gap: 26px;
  padding-top: clamp(26px, 4vw, 50px);
  padding-bottom: clamp(26px, 4vw, 46px);
}
.page-news .news-masthead-main .eyebrow { color: var(--lime); }
.page-news .news-masthead-main .display-xl {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 8.4vw, 100px);
  line-height: .92;
  letter-spacing: -.025em;
  color: var(--white);
}
.page-news .news-masthead-side .lede {
  margin: 0;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.78;
  color: var(--body-text);
  max-width: 48ch;
}
.page-news .masthead-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 22px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 2px solid var(--line);
}
.page-news .masthead-facts li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--steel);
}
.page-news .masthead-facts b {
  color: var(--orange);
  font-weight: 700;
  font-size: 14px;
}

/* ---- 分类标签条 ---- */
.page-news .news-filter-band {
  background: var(--bg-2);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  padding: 16px 0 14px;
}
.page-news .news-filter-band .wrap {
  display: grid;
  gap: 12px;
}
.page-news .filter-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-news .filter-btn {
  appearance: none;
  flex: 0 0 auto;
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
  background: transparent;
  border: 2px solid var(--line);
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}
.page-news .filter-btn:hover { color: var(--white); border-color: var(--steel); }
.page-news .filter-btn.is-active {
  color: var(--lime);
  border-color: var(--lime);
  background: rgba(200, 255, 61, .06);
}
.page-news .news-filter-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.68;
  color: var(--steel);
  max-width: 96ch;
}

/* ---- 主体布局 ---- */
.page-news .news-body {
  padding-top: clamp(30px, 4vw, 54px);
  padding-bottom: clamp(40px, 5vw, 72px);
}
.page-news .news-layout {
  display: grid;
  gap: 44px;
}
.page-news .news-stream { min-width: 0; }
.page-news .news-stream .display-md {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 50px);
  letter-spacing: -.015em;
  color: var(--white);
}
.page-news .news-stream-lede {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
  max-width: 62ch;
}

/* ---- 报告列表 ---- */
.page-news .report-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 2px solid var(--line);
}
.page-news .report-item {
  border-top: 2px solid var(--line);
}
.page-news .report-item > details { margin: 0; }
.page-news .report-item summary {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  grid-template-areas:
    "dot title"
    "dot cat"
    "dot time";
  gap: 6px 14px;
  align-items: center;
  padding: 16px 12px;
  cursor: pointer;
  list-style: none;
  transition: background .16s var(--ease);
}
.page-news .report-item summary::-webkit-details-marker { display: none; }
.page-news .report-item summary:hover { background: var(--bg-3); }
.page-news .report-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}
.page-news .r-dot {
  grid-area: dot;
  justify-self: start;
  align-self: center;
  width: 8px;
  height: 8px;
  background: var(--line);
}
.page-news .r-title {
  grid-area: title;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--white);
  min-width: 0;
}
.page-news .r-cat {
  grid-area: cat;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .07em;
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--steel);
  white-space: nowrap;
}
.page-news .r-time {
  grid-area: time;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  white-space: nowrap;
}
.page-news .r-abs {
  margin: 0 12px 18px 34px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--steel);
  max-width: 62ch;
}
.page-news .report-item[data-cat="round"] .r-dot { background: var(--lime); }
.page-news .report-item[data-cat="rank"] .r-dot { background: var(--orange); }
.page-news .report-item[data-cat="kit"] .r-dot { background: var(--steel); }
.page-news .report-item[data-cat="app"] .r-dot { background: var(--lime-2); }
.page-news .report-item[data-cat="note"] .r-dot { background: var(--orange-2); }
.page-news .report-item[data-cat="round"] .r-cat { color: var(--lime); border-color: rgba(200, 255, 61, .35); }
.page-news .report-item[data-cat="rank"] .r-cat { color: var(--orange); border-color: rgba(255, 122, 26, .38); }
.page-news .report-item[data-cat="app"] .r-cat { color: var(--lime-2); border-color: rgba(150, 196, 42, .4); }
.page-news .report-item[data-cat="note"] .r-cat { color: var(--orange-2); border-color: rgba(255, 184, 119, .35); }

.page-news .report-break {
  list-style: none;
  border-top: 2px solid var(--line);
  padding: 20px 0;
}
.page-news .report-break figure { margin: 0; }
.page-news .report-break img {
  display: block;
  width: 100%;
  height: clamp(140px, 22vw, 250px);
  object-fit: cover;
  border: 2px solid var(--line);
}

/* ---- 筛选状态 ---- */
.page-news .filter-item.is-hidden { display: none; }
.page-news .filter-item.is-enter { animation: news-fade .12s var(--ease); }
@keyframes news-fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

/* ---- 右侧窄栏 ---- */
.page-news .news-side {
  display: grid;
  gap: 28px;
  align-content: start;
  min-width: 0;
}
.page-news .focus-panel {
  background: var(--bg-2);
  border-top: 3px solid var(--lime);
  padding: 18px 18px 22px;
}
.page-news .focus-panel .eyebrow { display: block; margin: 0 0 14px; }
.page-news .focus-figure { margin: 0 0 16px; }
.page-news .focus-panel .display-sm {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.8vw, 27px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-news .focus-number {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
}
.page-news .focus-number .stat-big {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(52px, 9vw, 76px);
  line-height: .86;
  letter-spacing: -.04em;
  color: var(--orange);
}
.page-news .focus-number span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--steel);
}
.page-news .focus-panel p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--body-text);
}
.page-news .focus-panel p.focus-cap {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--steel);
}
.page-news .focus-chart {
  display: block;
  width: 100%;
  height: auto;
  margin: 10px 0 0;
}
.page-news .focus-chart .axis { stroke: var(--line); stroke-width: 1; }
.page-news .focus-chart .l-a { fill: none; stroke: var(--lime); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.page-news .focus-chart .l-b { fill: none; stroke: var(--orange); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.page-news .focus-chart .l-c { fill: none; stroke: var(--steel); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.page-news .focus-chart text {
  fill: var(--steel);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .04em;
}

.page-news .rhythm-panel {
  border: 2px solid var(--line);
  padding: 18px;
  background: var(--bg);
}
.page-news .rhythm-panel h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .01em;
  color: var(--white);
}
.page-news .rhythm-list { display: grid; }
.page-news .rhythm-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.page-news .rhythm-row:last-child { border-bottom: 0; }
.page-news .rhythm-key {
  font-size: 13.5px;
  color: var(--steel);
}
.page-news .rhythm-val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--lime);
  white-space: nowrap;
  text-align: right;
}
.page-news .rhythm-tip {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 2px solid var(--line);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--body-text);
}

/* ---- 作者与选题 ---- */
.page-news .news-authors {
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(36px, 5vw, 64px);
}
.page-news .news-authors-grid {
  display: grid;
  gap: 32px;
  align-items: start;
}
.page-news .news-authors-main { min-width: 0; }
.page-news .news-authors-main .eyebrow { color: var(--lime-2); }
.page-news .news-authors-main .display-md {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4.4vw, 48px);
  line-height: 1.06;
  letter-spacing: -.018em;
  color: var(--white);
}
.page-news .news-authors-main .lede {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--body-text);
  max-width: 60ch;
}
.page-news .author-grid {
  margin-top: 26px;
  border-top: 2px solid var(--line);
}
.page-news .author-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-news .author-count {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}
.page-news .author-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}
.page-news .author-desc {
  grid-column: 2 / -1;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}
.page-news .news-authors-figure { margin: 0; }
.page-news .news-authors-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---- 延伸入口 ---- */
.page-news .news-next {
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: clamp(48px, 6vw, 80px);
}
.page-news .news-next .display-sm {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  letter-spacing: -.012em;
  color: var(--white);
}
.page-news .next-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 2px solid var(--line);
}
.page-news .next-row { border-bottom: 1px solid var(--line); }
.page-news .next-row a {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 16px 8px;
  text-decoration: none;
  color: inherit;
  transition: background .16s var(--ease), padding-left .16s var(--ease);
}
.page-news .next-row a:hover,
.page-news .next-row a:focus-visible {
  background: var(--bg-3);
  padding-left: 16px;
}
.page-news .next-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  letter-spacing: .08em;
}
.page-news .next-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}
.page-news .next-desc {
  grid-column: 2 / -1;
  font-size: 14px;
  line-height: 1.68;
  color: var(--steel);
}
.page-news .next-arrow { display: none; }

/* ================= 响应式 ================= */
@media (min-width: 720px) {
  .page-news .filter-row {
    flex-wrap: wrap;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-news .report-item summary {
    grid-template-columns: 8px minmax(0, 1fr) max-content max-content;
    grid-template-areas: "dot title cat time";
    gap: 0 20px;
    padding: 18px 14px;
  }
  .page-news .r-cat { justify-self: end; }
  .page-news .r-time { justify-self: end; }
  .page-news .r-abs { margin-left: 36px; }

  .page-news .author-row {
    grid-template-columns: 58px 168px minmax(0, 1fr);
    gap: 0 22px;
  }
  .page-news .author-desc { grid-column: auto; }

  .page-news .next-row a {
    grid-template-columns: 46px 236px minmax(0, 1fr) 26px;
    align-items: center;
    padding: 18px 10px;
  }
  .page-news .next-desc { grid-column: auto; }
  .page-news .next-arrow {
    display: block;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--lime);
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: end;
  }
  .page-news .news-authors-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .75fr);
    gap: clamp(32px, 6vw, 80px);
  }
}

@media (min-width: 1000px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) var(--news-side-w);
    gap: var(--news-gap);
    align-items: start;
  }
  .page-news .news-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
    padding-right: 4px;
    scrollbar-width: thin;
  }
  .page-news .news-side::-webkit-scrollbar { width: 4px; }
  .page-news .news-side::-webkit-scrollbar-thumb { background: var(--line); }
}

@media (min-width: 1240px) {
  .page-news { --news-side-w: 372px; --news-gap: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-btn,
  .page-news .report-item summary,
  .page-news .next-row a {
    transition: none;
  }
  .page-news .filter-item.is-enter { animation: none; }
}