.page-news {
  --col-body: #C2CFD9;
  --col-hair: rgba(43, 227, 176, 0.34);
  display: block;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-news .k-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: clamp(22px, 3vw, 34px);
  font-family: var(--k-font-mono);
  font-size: var(--k-fs-xs);
  letter-spacing: 0.08em;
  color: var(--k-muted);
}

.page-news .k-breadcrumb a {
  color: var(--k-white);
  text-decoration: none;
  transition: color 0.3s var(--k-ease);
}

.page-news .k-breadcrumb a:hover {
  color: var(--k-neon);
}

/* ---------- 首屏 ---------- */
.page-news .col-hero {
  padding: clamp(26px, 4vw, 46px) 0 clamp(18px, 2.6vw, 26px);
}

.page-news .col-hero h1 {
  margin: 14px 0 0;
  max-width: 24ch;
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-news .col-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--col-body);
}

.page-news .col-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--k-font-mono);
  font-size: var(--k-fs-xs);
  letter-spacing: 0.06em;
  color: var(--k-muted);
}

.page-news .col-hero__meta li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-news .col-hero__meta li::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--k-neon);
  opacity: 0.75;
}

.page-news .col-hero__media {
  margin: clamp(26px, 3.4vw, 42px) 0 0;
  overflow: hidden;
  border: 1px solid var(--k-line-soft);
  border-radius: var(--k-r-3) var(--k-r-1) var(--k-r-4) var(--k-r-1);
}

.page-news .col-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-news .col-hero__media .k-media__cap {
  padding: 12px 16px;
  font-size: var(--k-fs-xs);
  letter-spacing: 0.04em;
  color: var(--k-muted);
}

/* ---------- 更新节奏 ---------- */
.page-news .col-rhythm {
  padding: clamp(34px, 5vw, 64px) 0;
  border-top: 1px solid var(--k-line);
  border-bottom: 1px solid var(--k-line);
}

.page-news .col-rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 2.8vw, 34px);
  margin-top: clamp(24px, 3vw, 38px);
}

.page-news .col-rhythm__item {
  position: relative;
  padding-left: 18px;
  border-left: 1px solid var(--k-line);
}

.page-news .col-rhythm__item::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 34px;
  background: var(--k-neon);
}

.page-news .col-rhythm__num {
  display: block;
  font-family: var(--k-font-mono);
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--k-neon);
  font-variant-numeric: tabular-nums;
}

.page-news .col-rhythm__label {
  margin: 10px 0 0;
  font-size: var(--k-fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--k-white);
}

.page-news .col-rhythm__text {
  margin: 8px 0 0;
  font-size: var(--k-fs-sm);
  line-height: 1.78;
  color: var(--col-body);
}

.page-news .col-rhythm__note {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-top: 18px;
  max-width: 72ch;
  border-top: 1px dashed var(--k-line-soft);
  font-size: var(--k-fs-sm);
  line-height: 1.8;
  color: var(--k-muted);
}

.page-news .col-rhythm__note a {
  color: var(--k-neon);
  text-decoration: none;
  border-bottom: 1px solid var(--col-hair);
}

.page-news .col-rhythm__note a:hover {
  border-bottom-color: var(--k-neon);
}

/* ---------- 标签横条 ---------- */
.page-news .col-tagbar {
  padding: clamp(30px, 4vw, 54px) 0 clamp(16px, 2.2vw, 24px);
}

.page-news .col-tagbar__title {
  margin: 0 0 20px;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .col-tags {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(82%, 250px);
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .col-tags::-webkit-scrollbar {
  height: 4px;
}

.page-news .col-tags::-webkit-scrollbar-thumb {
  background: var(--k-line);
  border-radius: 2px;
}

.page-news .col-tag {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 15px;
  scroll-snap-align: start;
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-radius: var(--k-r-2) var(--k-r-1) var(--k-r-3) var(--k-r-1);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.3s var(--k-ease), background 0.3s var(--k-ease),
    transform 0.3s var(--k-ease);
}

.page-news .col-tag:hover {
  border-color: var(--k-neon);
  transform: translateY(-2px);
}

.page-news .col-tag__name {
  font-size: var(--k-fs-sm);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--k-white);
}

.page-news .col-tag__desc {
  font-size: var(--k-fs-xs);
  line-height: 1.65;
  color: var(--k-muted);
}

.page-news .col-tag[aria-current="true"] {
  border-color: var(--k-neon);
  background: linear-gradient(180deg, rgba(43, 227, 176, 0.14), rgba(43, 227, 176, 0) 72%),
    var(--k-panel);
}

.page-news .col-tag[aria-current="true"] .col-tag__name,
.page-news .col-tag[aria-current="true"] .col-tag__desc {
  color: var(--k-neon);
}

/* ---------- 主列表 + 旁注 ---------- */
.page-news .col-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 54px);
  align-items: start;
  padding-top: clamp(8px, 1.4vw, 16px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

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

.page-news .col-group {
  padding-top: clamp(26px, 3.4vw, 40px);
  margin-top: clamp(26px, 3.4vw, 40px);
  border-top: 1px solid var(--k-line);
}

.page-news .col-group:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: none;
}

.page-news .col-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-news .col-group__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .col-group__title::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 0.86em;
  margin-right: 12px;
  border-radius: 2px;
  background: var(--k-neon);
  vertical-align: -0.04em;
}

.page-news .col-group__count {
  margin-left: auto;
  font-family: var(--k-font-mono);
  font-size: var(--k-fs-xs);
  letter-spacing: 0.1em;
  color: var(--k-signal);
  white-space: nowrap;
}

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

.page-news .col-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding: 18px 18px 18px 22px;
  background: linear-gradient(90deg, rgba(20, 26, 34, 0.92), rgba(20, 26, 34, 0.58));
  border: 1px solid var(--k-line);
  border-radius: var(--k-r-1) var(--k-r-3) var(--k-r-2) var(--k-r-3);
  transition: border-color 0.3s var(--k-ease), background 0.3s var(--k-ease);
}

.page-news .col-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: var(--k-line);
  transition: background 0.3s var(--k-ease);
}

.page-news .col-item:hover {
  border-color: rgba(43, 227, 176, 0.48);
  background: linear-gradient(90deg, rgba(20, 26, 34, 0.98), rgba(16, 32, 32, 0.6));
}

.page-news .col-item:hover::before {
  background: var(--k-neon);
}

.page-news .col-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 9px;
}

.page-news .col-item__time {
  font-family: var(--k-font-mono);
  font-size: var(--k-fs-xs);
  letter-spacing: 0.06em;
  color: var(--k-muted);
}

.page-news .col-item__title {
  margin: 0;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 800;
  line-height: 1.38;
  letter-spacing: -0.01em;
}

.page-news .col-item__sum {
  margin: 9px 0 0;
  font-size: var(--k-fs-sm);
  line-height: 1.78;
  color: var(--col-body);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
  transition: color 0.3s var(--k-ease);
}

.page-news .col-item:hover .col-item__sum,
.page-news .col-item:focus-within .col-item__sum {
  -webkit-line-clamp: 4;
  color: var(--k-white);
}

.page-news .col-item__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--k-line-soft);
  border-radius: 10px 2px 14px 2px;
}

.page-news .col-item__media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-news .col-item--lead .col-item__media img {
  aspect-ratio: 4 / 3;
}

/* ---------- 旁注栏 ---------- */
.page-news .col-aside {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-news .col-panel {
  padding: 22px 20px;
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-radius: var(--k-r-3) var(--k-r-1) var(--k-r-4) var(--k-r-1);
}

.page-news .col-panel__title {
  margin: 0 0 16px;
  font-size: var(--k-fs-xs);
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--k-muted);
}

.page-news .col-series {
  padding: 14px 0;
  border-top: 1px solid var(--k-line-soft);
}

.page-news .col-series:first-of-type {
  padding-top: 0;
  border-top: none;
}

.page-news .col-series__sum {
  position: relative;
  padding-right: 26px;
  font-size: var(--k-fs-base);
  font-weight: 700;
  line-height: 1.5;
  color: var(--k-white);
  cursor: pointer;
  list-style: none;
}

.page-news .col-series__sum::-webkit-details-marker {
  display: none;
}

.page-news .col-series__sum::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -1px;
  font-family: var(--k-font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--k-neon);
}

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

.page-news .col-series__text {
  margin: 12px 0 0;
  font-size: var(--k-fs-sm);
  line-height: 1.78;
  color: var(--col-body);
}

.page-news .col-series__list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .col-series__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--k-fs-xs);
  line-height: 1.7;
  color: var(--k-muted);
}

.page-news .col-series__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--k-violet);
}

.page-news .col-panel--sub {
  background: linear-gradient(160deg, rgba(43, 227, 176, 0.12), rgba(20, 26, 34, 0.94) 64%);
  border-color: rgba(43, 227, 176, 0.3);
}

.page-news .col-panel--sub .col-panel__title {
  color: var(--k-neon);
}

.page-news .col-panel--sub p {
  margin: 0 0 16px;
  font-size: var(--k-fs-sm);
  line-height: 1.78;
  color: var(--col-body);
}

/* ---------- 回顾与订阅 ---------- */
.page-news .col-archive {
  padding: clamp(40px, 6vw, 80px) 0 clamp(52px, 7vw, 96px);
  border-top: 1px solid var(--k-line);
}

.page-news .col-archive__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 30px);
  margin-top: clamp(24px, 3vw, 38px);
}

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

.page-news .col-archive__title {
  margin: 0 0 12px;
  font-size: var(--k-fs-sm);
  font-weight: 800;
  letter-spacing: 0.06em;
}

.page-news .col-archive__title a {
  padding-bottom: 2px;
  color: var(--k-white);
  text-decoration: none;
  border-bottom: 1px solid var(--k-line);
  transition: color 0.3s var(--k-ease), border-color 0.3s var(--k-ease);
}

.page-news .col-archive__title a:hover {
  color: var(--k-neon);
  border-bottom-color: var(--k-neon);
}

.page-news .col-archive__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .col-archive__list li {
  position: relative;
  padding-left: 12px;
  font-size: var(--k-fs-xs);
  line-height: 1.68;
  color: var(--k-muted);
}

.page-news .col-archive__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 1px;
  background: var(--k-line);
}

.page-news .col-sub {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  margin-top: clamp(32px, 4vw, 54px);
  padding: clamp(24px, 3vw, 34px);
  background: var(--k-panel);
  border: 1px solid var(--k-line);
  border-left: 3px solid var(--k-signal);
  border-radius: var(--k-r-1) var(--k-r-4) var(--k-r-1) var(--k-r-4);
}

.page-news .col-sub h3 {
  margin: 0 0 10px;
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .col-sub p {
  margin: 0;
  max-width: 64ch;
  font-size: var(--k-fs-sm);
  line-height: 1.82;
  color: var(--col-body);
}

.page-news .col-sub__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .col-sub__actions .k-btn {
  font-size: var(--k-fs-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-news .col-archive__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .col-rhythm__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-news .col-tags {
    grid-auto-flow: row;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 900px) {
  .page-news .col-sub {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }

  .page-news .col-sub__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1000px) {
  .page-news .col-body {
    grid-template-columns: minmax(0, 7.2fr) minmax(0, 4.8fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-news .col-aside {
    position: sticky;
    top: 92px;
  }
}

@media (min-width: 1024px) {
  .page-news .col-archive__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-news .col-item--lead {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-news .col-item--lead .col-item__media {
    margin-top: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .col-tag,
  .page-news .col-item,
  .page-news .col-item__sum,
  .page-news .col-item::before {
    transition: none;
  }

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