/* ===== 品牌专栏 · 页面专属样式（作用域：.page-news） ===== */

.page-news {
  --col-rail: 208px;
  --col-block-pad: clamp(2rem, 5vw, 3.2rem);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-news .col-hero {
  position: relative;
  padding-block: clamp(1.4rem, 3.6vw, 2.6rem) clamp(2.2rem, 5vw, 3.6rem);
  background:
    radial-gradient(110% 80% at 92% 4%, rgba(0, 229, 195, 0.16), transparent 60%),
    radial-gradient(80% 70% at 4% 96%, rgba(212, 168, 67, 0.13), transparent 58%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-news .col-hero::after {
  content: "";
  position: absolute;
  top: 16%;
  bottom: 10%;
  inset-inline-end: max(1rem, 4vw);
  width: 1px;
  background: linear-gradient(to bottom, rgba(0, 229, 195, 0), var(--line-gold), rgba(212, 168, 67, 0));
  pointer-events: none;
}

.page-news .col-hero .crumbs {
  margin-bottom: clamp(1rem, 2.4vw, 1.6rem);
}

.page-news .col-hero__grid {
  align-items: center;
  row-gap: clamp(1.4rem, 3vw, 2.2rem);
}

.page-news .col-hero__lead {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-news .col-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.2vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-news .col-hero__accent {
  color: var(--cyan-soft);
  background: linear-gradient(transparent 64%, rgba(0, 229, 195, 0.3) 64%);
  padding-inline: 0.06em;
}

.page-news .col-hero__lede {
  margin: 0;
  max-width: 56ch;
  color: var(--text-soft);
  font-size: clamp(0.95rem, 1.5vw, 1.06rem);
  line-height: 1.82;
}

.page-news .col-hero__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-news .col-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-news .col-hero__stats {
  list-style: none;
  margin: clamp(1.8rem, 4vw, 2.6rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-news .col-hero__stat {
  background: rgba(18, 60, 52, 0.72);
  padding: clamp(0.9rem, 2vw, 1.2rem) clamp(0.9rem, 2.2vw, 1.4rem);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-news .col-hero__stat .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.12rem, 2.5vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
  line-height: 1.1;
}

.page-news .col-hero__stat .stat__label {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  color: var(--text-dim);
}

/* ---------- 主体栅格 ---------- */
.page-news .col-stream {
  padding-block: clamp(2.2rem, 5.5vw, 4.2rem) clamp(2.6rem, 6vw, 5rem);
}

.page-news .col-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 3.6vw, 3rem);
}

.page-news .col-stage {
  min-width: 0;
}

/* ---------- 左栏分类刻度 ---------- */
.page-news .col-rail {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-news .col-rail__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .col-filter {
  position: relative;
  display: flex;
  flex-wrap: nowrap;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
}

.page-news .col-filter::-webkit-scrollbar {
  display: none;
}

.page-news .col-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .col-filter__pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(18, 60, 52, 0.55);
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease),
    background 0.28s var(--ease);
}

.page-news .col-filter__pill::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-gold);
  transition: background 0.28s var(--ease);
}

.page-news .col-filter__pill:hover {
  color: var(--cyan-soft);
  border-color: rgba(0, 229, 195, 0.48);
}

.page-news .col-filter__input:checked + .col-filter__pill {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #06231e;
  font-weight: 700;
}

.page-news .col-filter__input:checked + .col-filter__pill::before {
  background: #06231e;
}

.page-news .col-filter__input:focus-visible + .col-filter__pill {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* 分类筛选：隐藏不符合当前分类的条目与空区块 */
.page-news:has(#cf-report:checked) .col-entry:not([data-cat~="report"]),
.page-news:has(#cf-version:checked) .col-entry:not([data-cat~="version"]),
.page-news:has(#cf-observe:checked) .col-entry:not([data-cat~="observe"]),
.page-news:has(#cf-data:checked) .col-entry:not([data-cat~="data"]) {
  display: none;
}

.page-news:has(#cf-report:checked) .col-block:not(:has(.col-entry[data-cat~="report"])),
.page-news:has(#cf-version:checked) .col-block:not(:has(.col-entry[data-cat~="version"])),
.page-news:has(#cf-observe:checked) .col-block:not(:has(.col-entry[data-cat~="observe"])),
.page-news:has(#cf-data:checked) .col-block:not(:has(.col-entry[data-cat~="data"])) {
  display: none;
}

.page-news:has(#cf-observe:checked) .col-column:not(:has(.col-entry[data-cat~="observe"])),
.page-news:has(#cf-data:checked) .col-column:not(:has(.col-entry[data-cat~="data"])) {
  display: none;
}

/* ---------- 内容区块 ---------- */
.page-news .col-block {
  padding-block: var(--col-block-pad);
  border-top: 1px solid var(--line);
}

.page-news .col-block:first-child {
  padding-top: 0;
  border-top-color: transparent;
}

.page-news .col-block__head {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.3rem clamp(0.8rem, 2vw, 1.4rem);
  align-items: start;
  margin-bottom: clamp(1.3rem, 3vw, 2rem);
}

.page-news .col-block__idx {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-news .col-block__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.2vw, 1.9rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-news .col-block__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 条目 ---------- */
.page-news .col-entries {
  display: grid;
  gap: 0.45rem;
}

.page-news .col-entry {
  position: relative;
  padding: 0.9rem 1rem 0.9rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.page-news .col-entry::before {
  content: "";
  position: absolute;
  inset-block: 1rem;
  inset-inline-start: 0;
  width: 2px;
  border-radius: 2px;
  background: var(--line);
  transition: inset-block 0.3s var(--ease), background 0.3s var(--ease);
}

.page-news .col-entry:hover {
  background: linear-gradient(
    100deg,
    rgba(0, 229, 195, 0.1),
    rgba(18, 60, 52, 0.35) 55%,
    rgba(18, 60, 52, 0)
  );
  border-color: var(--line);
  transform: translateY(-2px);
}

.page-news .col-entry:hover::before {
  inset-block: 0.55rem;
  background: linear-gradient(to bottom, var(--cyan), var(--gold));
}

.page-news .col-entry__flags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.7rem;
  margin: 0 0 0.4rem;
}

.page-news .col-entry__round,
.page-news .col-entry__ver,
.page-news .col-entry__time {
  font-family: var(--font-mono);
}

.page-news .col-entry__round,
.page-news .col-entry__ver {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.6rem;
  border-radius: var(--r-pill);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.page-news .col-entry__round {
  border: 1px solid rgba(0, 229, 195, 0.4);
  background: rgba(0, 229, 195, 0.08);
  color: var(--cyan-soft);
}

.page-news .col-entry__ver {
  border: 1px solid rgba(212, 168, 67, 0.45);
  background: rgba(212, 168, 67, 0.09);
  color: var(--gold);
}

.page-news .col-entry__time {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-news .col-entry__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.98rem, 1.8vw, 1.1rem);
  line-height: 1.55;
  color: var(--mist);
}

.page-news .col-entry__summary {
  margin: 0.5rem 0 0;
  max-width: 58ch;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--text-soft);
}

@media (hover: hover) and (pointer: fine) {
  .page-news .col-entry__summary {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.45s var(--ease), opacity 0.35s var(--ease),
      margin-top 0.35s var(--ease);
  }

  .page-news .col-entry:hover .col-entry__summary {
    max-height: 12rem;
    margin-top: 0.5rem;
    opacity: 1;
  }
}

/* ---------- 版本迭代区块 ---------- */
.page-news .col-release {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-news .col-release__fig {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .col-release__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-news .col-entry--release {
  background: rgba(18, 60, 52, 0.28);
  border-color: var(--line-soft);
}

/* ---------- 观察与笔记双栏 ---------- */
.page-news .col-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3.2vw, 2.2rem);
}

.page-news .col-column {
  padding: clamp(0.9rem, 2.2vw, 1.3rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(18, 60, 52, 0.32);
}

.page-news .col-column__title {
  margin: 0 0 0.8rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .col-column:nth-child(2) .col-column__title {
  color: var(--cyan);
  border-bottom-color: rgba(0, 229, 195, 0.3);
}

.page-news .col-notes__fig {
  margin: clamp(1.4rem, 3vw, 2rem) auto 0;
  max-width: 760px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .col-notes__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 专题系列 ---------- */
.page-news .col-series {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-news .col-series__icon {
  margin: 0;
  max-width: 220px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .col-series__icon img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-news .col-series__list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
}

.page-news .col-series__item {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(18, 60, 52, 0.3);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.page-news .col-series__item:hover {
  border-color: rgba(0, 229, 195, 0.45);
  background: rgba(18, 60, 52, 0.55);
  transform: translateY(-2px);
}

.page-news .col-series__item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--mist);
}

.page-news .col-series__item p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-news .col-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-news .col-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.8rem;
  border: 1px dashed rgba(212, 168, 67, 0.45);
  border-radius: var(--r-pill);
  color: var(--gold);
  font-size: 0.78rem;
  text-decoration: none;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease),
    background 0.28s var(--ease);
}

.page-news .col-tag:hover {
  color: var(--cyan-soft);
  border-style: solid;
  border-color: rgba(0, 229, 195, 0.55);
  background: rgba(0, 229, 195, 0.1);
}

/* ---------- 区块底部动作 ---------- */
.page-news .col-block__more {
  margin: clamp(1rem, 2.4vw, 1.4rem) 0 0;
  padding-left: 1.25rem;
}

.page-news .col-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid transparent;
  color: var(--cyan);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease),
    gap 0.28s var(--ease);
}

.page-news .col-more::after {
  content: "→";
  transition: transform 0.28s var(--ease);
}

.page-news .col-more:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--gold);
  gap: 0.75rem;
}

.page-news .col-top {
  margin-top: clamp(1.4rem, 3vw, 2rem);
  padding: 0.55rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-soft);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease),
    background 0.28s var(--ease);
}

.page-news .col-top:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #06231e;
}

/* ---------- 响应式：平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-news .col-series__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .col-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-news .col-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .col-series {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .col-release {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .col-layout {
    grid-template-columns: var(--col-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .col-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.6rem);
  }

  .page-news .col-filter {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: flex-start;
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 1080px) {
  .page-news .col-block--rounds .col-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem 0.9rem;
  }
}

/* ---------- 响应式：窄屏 ---------- */
@media (max-width: 640px) {
  .page-news .col-hero::after {
    display: none;
  }

  .page-news .col-hero__title {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }

  .page-news .col-block__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.25rem;
  }

  .page-news .col-block__idx {
    font-size: 0.82rem;
    line-height: 1.2;
  }

  .page-news .col-entry {
    padding: 0.85rem 0.85rem 0.85rem 1rem;
  }

  .page-news .col-entry__round,
  .page-news .col-entry__ver {
    white-space: normal;
  }

  .page-news .col-block__more {
    padding-left: 1rem;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .col-entry,
  .page-news .col-entry::before,
  .page-news .col-entry__summary,
  .page-news .col-filter__pill,
  .page-news .col-filter__pill::before,
  .page-news .col-series__item,
  .page-news .col-tag,
  .page-news .col-more,
  .page-news .col-more::after,
  .page-news .col-top {
    transition: none;
  }

  .page-news .col-entry:hover {
    transform: none;
  }

  .page-news .col-entry:hover .col-entry__summary {
    max-height: none;
    opacity: 1;
  }
}