/* ===== 品牌博客 · 页面专属样式（限定 .page-news） ===== */

.page-news {
  --blog-gap: clamp(18px, 3vw, 32px);
  display: block;
}

/* ---------- 页首文字建筑 ---------- */
.page-news .blog-hero {
  padding-top: clamp(22px, 3.4vw, 44px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-news .blog-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 44px);
  align-items: end;
  margin-top: clamp(20px, 3.4vw, 34px);
}

.page-news .blog-hero-main .section-title {
  font-size: clamp(40px, 9vw, 88px);
  line-height: 1.02;
  margin: .16em 0 .22em;
  letter-spacing: .02em;
}

.page-news .blog-hero-main .display-glow {
  text-shadow: 0 0 38px rgba(155, 92, 255, .42);
}

.page-news .blog-hero-main .section-lead {
  max-width: 46ch;
}

.page-news .blog-hero-aside {
  display: flex;
  gap: clamp(14px, 2.6vw, 24px);
  align-items: flex-start;
}

.page-news .blog-stat {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3.6vw, 36px);
}

.page-news .blog-stat dt {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist-faint);
  margin-bottom: 6px;
}

.page-news .blog-stat dd {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}

.page-news .blog-stat dd small {
  display: block;
  margin-top: 5px;
  font-family: var(--display);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .14em;
  color: var(--mist-faint);
}

.page-news .blog-cover {
  margin: clamp(26px, 4.6vw, 50px) 0 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: var(--cut-shape);
}

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

/* ---------- 栏目筛选条 ---------- */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 32px);
  padding-bottom: clamp(16px, 2.4vw, 24px);
  border-bottom: 1px solid var(--line);
}

.page-news .cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--mist-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
  transition: color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-news .cat-pill .num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--mist-faint);
}

.page-news .cat-pill:hover {
  color: var(--white);
  border-color: var(--neon);
}

.page-news #cat-all:checked ~ .filter-bar label[for="cat-all"],
.page-news #cat-ver:checked ~ .filter-bar label[for="cat-ver"],
.page-news #cat-use:checked ~ .filter-bar label[for="cat-use"],
.page-news #cat-ops:checked ~ .filter-bar label[for="cat-ops"] {
  color: var(--white);
  border-color: var(--neon);
  background: rgba(155, 92, 255, .14);
  box-shadow: 0 0 0 1px rgba(155, 92, 255, .26);
}

.page-news .news-filter input:focus-visible ~ .filter-bar {
  outline: 2px solid var(--electric);
  outline-offset: 6px;
}

.page-news #cat-ver:checked ~ .post-list > .post-item:not([data-cat="ver"]),
.page-news #cat-use:checked ~ .post-list > .post-item:not([data-cat="use"]),
.page-news #cat-ops:checked ~ .post-list > .post-item:not([data-cat="ops"]) {
  display: none;
}

/* ---------- 内容列表 ---------- */
.page-news .post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .post-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "cat arrow"
    "body body";
  gap: 14px 16px;
  padding: clamp(20px, 3.4vw, 34px) 0 clamp(20px, 3.4vw, 34px) clamp(14px, 2vw, 24px);
  border-bottom: 1px solid var(--line);
  transition: transform .38s var(--ease), border-color .38s var(--ease);
}

.page-news .post-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 0;
  background: linear-gradient(180deg, var(--neon), var(--electric));
  transition: height .42s var(--ease);
}

.page-news .post-item:hover,
.page-news .post-item:focus-within {
  transform: translateX(-6px);
  border-color: rgba(155, 92, 255, .4);
}

.page-news .post-item:hover::before,
.page-news .post-item:focus-within::before {
  height: 100%;
}

.page-news .post-cat {
  grid-area: cat;
  align-self: start;
  justify-self: start;
}

.page-news .cat-tag {
  display: inline-block;
  padding: 4px 11px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  border: 1px solid rgba(232, 201, 138, .45);
  border-radius: 999px;
  white-space: nowrap;
}

.page-news .post-item[data-cat="ver"] .cat-tag {
  color: var(--neon);
  border-color: rgba(155, 92, 255, .5);
}

.page-news .post-item[data-cat="use"] .cat-tag {
  color: var(--electric);
  border-color: rgba(53, 225, 255, .45);
}

.page-news .post-body {
  grid-area: body;
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 2vw, 22px);
  min-width: 0;
}

.page-news .post-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-news .post-thumb {
  flex: 0 0 auto;
  width: clamp(72px, 18vw, 108px);
  aspect-ratio: 1 / 1;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: var(--cut-shape-alt);
}

.page-news .post-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .post-title {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.4vw, 25px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--white);
  transition: color .3s var(--ease);
}

.page-news .post-item:hover .post-title {
  color: var(--neon);
}

.page-news .post-excerpt {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.78;
  letter-spacing: .03em;
  color: var(--mist-dim);
}

.page-news .post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist-faint);
}

.page-news .post-meta .num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.page-news .meta-dash {
  display: inline-block;
  width: 14px;
  height: 1px;
  background: var(--line);
}

.page-news .post-arrow {
  grid-area: arrow;
  align-self: start;
  font-size: 18px;
  line-height: 1;
  color: var(--electric);
  opacity: .25;
  transform: translateX(-8px);
  transition: opacity .34s var(--ease), transform .34s var(--ease);
}

.page-news .post-item:hover .post-arrow,
.page-news .post-item:focus-within .post-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- 专题连载 ---------- */
.page-news .series-panel {
  position: relative;
  margin-top: clamp(24px, 3.6vw, 40px);
  padding: clamp(24px, 4.4vw, 56px);
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: var(--cut-shape);
}

.page-news .series-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(7, 7, 11, .78), rgba(7, 7, 11, .94));
}

.page-news .series-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

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

.page-news .series-item {
  border-top: 1px solid var(--line);
  padding: clamp(10px, 1.6vw, 16px) 0;
}

.page-news .series-item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 6px 0;
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--white);
  cursor: pointer;
  list-style: none;
  transition: color .3s var(--ease);
}

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

.page-news .series-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--neon);
}

.page-news .series-item[open] summary::after {
  content: "–";
}

.page-news .series-item summary:hover {
  color: var(--neon);
}

.page-news .series-count {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-news .series-list {
  list-style: none;
  margin: 10px 0 6px;
  padding: 0;
}

.page-news .series-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 9px;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-news .series-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 11px;
  height: 1px;
  background: var(--neon);
}

/* ---------- 更新节奏与反馈 ---------- */
.page-news .blog-rhythm .grid-12 {
  align-items: start;
  row-gap: clamp(24px, 4vw, 40px);
}

.page-news .rhythm-list {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
}

.page-news .rhythm-list li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 0 clamp(12px, 2vw, 22px);
  align-items: start;
  padding: clamp(14px, 2vw, 18px) 0;
  border-top: 1px solid var(--line);
}

.page-news .rhythm-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .rhythm-key {
  padding-top: 3px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--neon);
}

.page-news .rhythm-list p {
  margin: 0;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.78;
  letter-spacing: .03em;
  color: var(--mist-dim);
}

.page-news .blog-feedback {
  padding: clamp(24px, 3.4vw, 38px);
}

.page-news .blog-feedback .panel-title {
  margin: 14px 0 10px;
}

.page-news .blog-feedback .panel-text {
  margin: 0 0 22px;
}

/* ---------- 中屏与宽屏 ---------- */
@media (min-width: 640px) {
  .page-news .post-body {
    flex-direction: row;
    align-items: flex-start;
  }
}

@media (min-width: 900px) {
  .page-news .blog-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-news .post-item {
    grid-template-columns: 76px minmax(0, 1fr) auto;
    grid-template-areas: "cat .page-news arrow";
    align-items: start;
    gap: 0 clamp(18px, 3vw, 36px);
  }

  .page-news .post-cat {
    justify-self: stretch;
  }

  .page-news .series-item summary {
    font-size: 19px;
  }
}

@media (max-width: 619px) {
  .page-news .blog-hero-aside .vertical-note {
    display: none;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .post-item,
  .page-news .post-item::before,
  .page-news .post-title,
  .page-news .post-arrow,
  .page-news .cat-pill,
  .page-news .series-item summary {
    transition: none;
  }

  .page-news .post-item:hover,
  .page-news .post-item:focus-within {
    transform: none;
  }

  .page-news .post-arrow {
    transform: none;
    opacity: .6;
  }
}