/* ============ 趋势观察 N09 ============ */

.page-news {
  --news-rail-w: 208px;
  padding-bottom: clamp(56px, 9vw, 104px);
  color: var(--silver);
}

.page-news .news-hero,
.page-news .news-stream,
.page-news .news-archive,
.page-news .news-log,
.page-news .news-series,
.page-news .news-routes,
.page-news .news-feedback {
  margin-top: clamp(52px, 8vw, 96px);
}

.page-news .news-hero { margin-top: 0; }

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--silver-dim);
}

.page-news .news-crumb a {
  color: var(--maple-red-light);
  text-decoration: none;
}

.page-news .news-crumb a:hover { text-decoration: underline; }

.page-news .news-crumb__sep { opacity: 0.45; }

.page-news .news-crumb__here { color: var(--silver); }

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-top: clamp(26px, 5vw, 54px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: calc(-1 * var(--gutter));
  right: calc(-1 * var(--gutter));
  height: 330px;
  background-image:
    linear-gradient(to right, var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--blueprint-line) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.42;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 100%);
}

.page-news .news-hero > * { position: relative; }

.page-news .news-hero__title {
  max-width: 15em;
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .news-hero__title em {
  font-style: normal;
  color: var(--aurora-green);
}

.page-news .news-hero__lede {
  max-width: 40em;
  margin: 0 0 26px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  font-size: 13.5px;
  color: var(--silver-dim);
}

.page-news .news-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-hero__facts .mono {
  font-size: 13px;
  color: var(--aurora-green);
}

.page-news .news-banner {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--blueprint-line);
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  opacity: 0.9;
}

/* ---------- 条目流 ---------- */
.page-news .news-stream {
  display: grid;
  gap: 28px;
}

.page-news .news-stream__rail {
  border-bottom: 1px solid var(--blueprint-line);
  padding-bottom: 18px;
}

.page-news .news-rail__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

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

.page-news .news-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--blueprint-line);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--silver);
  text-decoration: none;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-news .news-rail__list a:hover {
  border-color: var(--aurora-green);
  color: var(--aurora-green);
}

.page-news .news-rail__num {
  font-size: 12px;
  color: var(--silver-dim);
}

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

.page-news .news-item {
  position: relative;
  padding: 20px 0 20px 15px;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--aurora-green);
  opacity: 0;
  transition: opacity 220ms var(--ease);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before { opacity: 1; }

.page-news .news-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .news-item__time {
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--silver-dim);
  font-variant-numeric: tabular-nums;
}

.page-news .news-item__title {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17.5px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .news-item__summary {
  margin: 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver-dim);
}

/* ---------- 归档 ---------- */
.page-news .news-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--blueprint-line);
  border-left: 1px solid var(--blueprint-line);
}

.page-news .archive-block {
  --accent: var(--aurora-green);
  position: relative;
  padding: 26px 22px 24px;
  border-right: 1px solid var(--blueprint-line);
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .archive-block--red { --accent: var(--maple-red); }

.page-news .archive-block::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 3px;
  background: var(--accent);
}

.page-news .archive-block__code {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--silver-dim);
}

.page-news .archive-block__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .archive-block__desc {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver-dim);
}

.page-news .archive-block__count {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--blueprint-line);
  border-radius: var(--radius);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--silver);
}

/* ---------- 更新日志 ---------- */
.page-news .news-log__figure {
  margin: 0 0 8px;
  overflow: hidden;
  border: 1px solid var(--blueprint-line);
}

.page-news .news-log__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  opacity: 0.85;
}

.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .log-item {
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .log-item > summary {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px 30px 18px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color 200ms var(--ease);
}

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

.page-news .log-item > summary:hover { background-color: rgba(30, 42, 74, 0.22); }

.page-news .log-item > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--aurora-deep);
  transition: background-color 220ms var(--ease);
}

.page-news .log-item[open] > summary::before { background: var(--aurora-green); }

.page-news .log-item > summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--silver-dim);
  border-bottom: 1.5px solid var(--silver-dim);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-news .log-item[open] > summary::after {
  transform: translateY(-30%) rotate(-135deg);
  border-color: var(--aurora-green);
}

.page-news .log-item__ver {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--maple-red-light);
}

.page-news .log-item[open] .log-item__ver { color: var(--aurora-green); }

.page-news .log-item__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .log-item__stage {
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--silver-dim);
  white-space: nowrap;
}

.page-news .log-item__body {
  padding: 0 30px 22px 16px;
}

.page-news .log-item__body ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .log-item__body li {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-news .log-item__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 8px;
  height: 1px;
  background: var(--silver-dim);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-series__cover {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--blueprint-line);
}

.page-news .news-series__cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  opacity: 0.88;
}

.page-news .series-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--blueprint-line);
}

.page-news .series-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .series-item__stage {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 9px;
  border-radius: var(--radius);
  background: rgba(61, 224, 168, 0.1);
  border: 1px solid var(--aurora-deep);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--aurora-green);
}

.page-news .series-item__title {
  margin: 0 0 9px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .series-item__desc {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-dim);
}

/* ---------- 认路经验 ---------- */
.page-news .news-routes__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-routes__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--blueprint-line);
}

.page-news .news-routes__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  opacity: 0.85;
}

.page-news .route-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: route;
}

.page-news .route-item {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-news .route-item:first-child { border-top: 1px solid var(--blueprint-line); }

.page-news .route-item__no {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--maple-red-light);
  padding-top: 3px;
}

.page-news .route-item__title {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .route-item__body p {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-dim);
}

.page-news .route-item__body a {
  color: var(--aurora-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 224, 168, 0.4);
}

.page-news .route-item__body a:hover { border-bottom-color: var(--aurora-green); }

/* ---------- 反馈 ---------- */
.page-news .news-feedback {
  display: grid;
  gap: 26px;
}

.page-news .news-feedback__panel {
  position: relative;
  padding: 28px 22px;
  border: 1px solid var(--blueprint-line);
  background:
    linear-gradient(135deg, rgba(228, 50, 43, 0.12) 0%, rgba(7, 11, 24, 0) 55%),
    var(--midnight-700);
}

.page-news .news-feedback__panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 3px;
  background: var(--maple-red);
}

.page-news .news-feedback__code {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver-dim);
}

.page-news .news-feedback__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .news-feedback__desc {
  margin: 0 0 22px;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .news-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news .news-feedback__mail {
  display: inline-block;
  padding: 8px 12px;
  border: 1px dashed var(--blueprint-line);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--aurora-green);
  word-break: break-all;
}

.page-news .news-feedback__links {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--blueprint-line);
}

.page-news .news-feedback__links a {
  display: grid;
  grid-template-columns: 46px 1fr;
  grid-template-areas:
    "code name"
    "code desc";
  align-items: center;
  gap: 2px 14px;
  padding: 15px 4px;
  border-bottom: 1px solid var(--blueprint-line);
  text-decoration: none;
  transition: background-color 200ms var(--ease);
}

.page-news .news-feedback__links a:hover { background-color: rgba(30, 42, 74, 0.22); }

.page-news .news-feedback__links .mono {
  grid-area: code;
  font-size: 12.5px;
  color: var(--maple-red-light);
  letter-spacing: 0.04em;
}

.page-news .news-feedback__link-name {
  grid-area: name;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15.5px;
  color: var(--paper);
}

.page-news .news-feedback__link-desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver-dim);
}

/* ---------- 平板起 ---------- */
@media (min-width: 680px) {
  .page-news .news-archive__grid { grid-template-columns: 1fr 1fr; }

  .page-news .news-series__grid {
    grid-template-columns: minmax(220px, 320px) 1fr;
    align-items: start;
    gap: 34px;
  }

  .page-news .news-routes__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 34px;
  }

  .page-news .route-item:first-child { border-top: 1px solid var(--blueprint-line); }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 960px) {
  .page-news .news-stream {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-news .news-stream__rail {
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
    margin: 0;
    padding: 0 22px 0 0;
    border-bottom: 0;
    border-right: 1px solid var(--blueprint-line);
  }

  .page-news .news-rail__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-news .news-rail__list a {
    width: 100%;
    justify-content: space-between;
    padding: 9px 12px 9px 12px;
    border: 0;
    border-left: 2px solid var(--blueprint-line);
    border-radius: 0;
    transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
  }

  .page-news .news-rail__list a:hover {
    border-left-color: var(--aurora-green);
    background-color: rgba(30, 42, 74, 0.25);
  }

  .page-news .news-feedback {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 34px;
  }

  .page-news .news-log__figure img { aspect-ratio: 16 / 7; }
}

/* ---------- 窄屏 ---------- */
@media (max-width: 640px) {
  .page-news .news-banner img { aspect-ratio: 2 / 1; }

  .page-news .log-item > summary {
    grid-template-columns: 42px 1fr;
    gap: 10px;
    padding: 16px 26px 16px 13px;
  }

  .page-news .log-item__stage { display: none; }

  .page-news .log-item__body { padding: 0 14px 20px 13px; }

  .page-news .news-hero__facts { gap: 10px 20px; }

  .page-news .news-feedback__actions { gap: 10px; }

  .page-news .news-feedback__mail { width: 100%; }
}

/* ---------- 动效削减 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-item::before,
  .page-news .log-item > summary::before,
  .page-news .log-item > summary::after,
  .page-news .news-rail__list a {
    transition: none;
  }
}
</main>