.page-news {
  --news-rail-w: 216px;
  --news-time-w: 7.5rem;
  --news-deep-line: rgba(247, 245, 240, 0.09);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(20px, 3vw, 38px) 0 clamp(28px, 4vw, 56px);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  isolation: isolate;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(140% 120% at 94% -14%, rgba(21, 67, 230, 0.13), transparent 58%),
    radial-gradient(84% 92% at -8% 112%, rgba(18, 160, 140, 0.09), transparent 60%);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(16px, 2.4vw, 30px);
}

.page-news .news-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--blue);
}

.page-news .news-hero__title {
  margin: 0 0 18px;
  max-width: 14ch;
  color: var(--ink);
}

.page-news .news-hero__lead-text {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-2);
}

.page-news .news-hero__facts {
  list-style: none;
  margin: clamp(20px, 2.8vw, 34px) 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px 22px;
}

.page-news .news-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-news .news-hero__k {
  font-family: var(--mono);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--orange);
}

.page-news .news-hero__v {
  font-size: 0.8125rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--gray);
}

.page-news .media {
  display: block;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--paper-2);
}

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

.page-news .media__caption {
  padding: 10px 14px 12px;
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--gray);
  border-top: 1px solid var(--rule);
}

.page-news .news-hero__media {
  box-shadow: var(--shadow-paper);
}

/* ---------- 条目区 ---------- */
.page-news .news-log {
  padding: clamp(36px, 5vw, 76px) 0 clamp(34px, 4.6vw, 68px);
  border-bottom: 1px solid var(--rule);
}

.page-news .news-log__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 36px);
  align-items: end;
  padding-bottom: clamp(20px, 3vw, 34px);
  margin-bottom: clamp(20px, 3vw, 34px);
  border-bottom: 1px solid var(--rule);
}

.page-news .news-log__eyebrow {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-news .news-log__title {
  margin: 0 0 14px;
  font-family: var(--sans);
  font-size: clamp(1.5rem, 2.9vw, 2.25rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-news .news-log__note {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-news .news-log__media {
  max-width: 460px;
}

/* 筛选 + 列表骨架 */
.page-news .news-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 28px);
}

.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .news-rail__label {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-news .news-rail__chips {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-news .news-rail__chips .filter-chip {
  flex: 0 0 auto;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-news .news-rail__n {
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.7;
}

.page-news .news-rail__count {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--gray);
}

.page-news .news-rail__count span {
  color: var(--blue);
  font-weight: 600;
}

/* 条目列表 */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  min-width: 0;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  grid-template-areas:
    "idx title"
    "idx meta";
  column-gap: 0.85rem;
  row-gap: 0.5rem;
  padding: 15px 4px 16px;
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.18s var(--ease);
}

.page-news .news-item[hidden] {
  display: none;
}

.page-news .news-item__idx {
  grid-area: idx;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--gray);
  transition: color 0.18s var(--ease);
}

.page-news .news-item__title {
  grid-area: title;
  margin: 0;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-news .news-item__meta {
  grid-area: meta;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  min-width: 0;
}

.page-news .news-item__to {
  font-size: 0.8125rem;
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .news-item__to:hover,
.page-news .news-item__to:focus-visible {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-news .news-item__time {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.78125rem;
  letter-spacing: 0.02em;
  color: var(--gray);
  white-space: nowrap;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  background: var(--navy);
  color: var(--paper);
  padding: clamp(40px, 5.4vw, 84px) 0;
}

.page-news .news-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
}

.page-news .news-series__eyebrow {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--blue-soft);
}

.page-news .news-series__title {
  margin: 0 0 14px;
  font-family: var(--sans);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .news-series__text {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(247, 245, 240, 0.68);
}

.page-news .news-series .media {
  border-color: var(--line);
  background: rgba(247, 245, 240, 0.05);
  max-width: 320px;
}

.page-news .news-series__list {
  min-width: 0;
}

.page-news .series {
  border-bottom: 1px solid var(--news-deep-line);
}

.page-news .series__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1rem;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  border-top: 1px solid var(--line);
  transition: color 0.18s var(--ease);
}

.page-news .series:first-child .series__sum {
  border-top: 0;
}

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

.page-news .series__no {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--blue-soft);
}

.page-news .series__name {
  flex: 1 1 9rem;
  min-width: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .series__ticks {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.page-news .series__tick {
  display: block;
  width: 14px;
  height: 3px;
  background: var(--line-2);
}

.page-news .series__tick.is-on {
  background: var(--blue);
}

.page-news .series__count {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: rgba(247, 245, 240, 0.55);
}

.page-news .series__mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-left: auto;
}

.page-news .series__mark::before,
.page-news .series__mark::after {
  content: "";
  position: absolute;
  background: var(--paper);
  opacity: 0.55;
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-news .series__mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-news .series__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-news .series[open] .series__mark::after {
  transform: translateX(-50%) scaleY(0);
}

.page-news .series__body {
  padding-bottom: 14px;
}

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

.page-news .series__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.25rem 0.8rem;
  padding: 11px 2px 12px;
  border-bottom: 1px solid var(--news-deep-line);
}

.page-news .series__steps li:last-child {
  border-bottom: 0;
}

.page-news .series__step-no {
  grid-column: 1;
  padding-top: 0.18rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--teal);
  white-space: nowrap;
}

.page-news .series__step-t {
  grid-column: 2;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--paper);
}

.page-news .series__step-d {
  grid-column: 2;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(247, 245, 240, 0.64);
}

/* ---------- 归档 ---------- */
.page-news .news-archive {
  padding: clamp(38px, 5vw, 80px) 0 clamp(44px, 5.4vw, 88px);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}

.page-news .news-archive__head {
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-news .news-archive__eyebrow {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-news .news-archive__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-news .news-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

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

.page-news .news-archive__rules li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 16px 2px 17px;
  border-bottom: 1px solid var(--rule);
}

.page-news .news-archive__rk {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--blue);
}

.page-news .news-archive__rules p {
  margin: 0;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .news-archive__note {
  align-self: start;
}

.page-news .news-archive__note-text {
  margin: 0 0 18px;
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-news .news-archive__mailrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}

.page-news .news-archive__mail {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  word-break: break-all;
}

.page-news .news-archive__copy {
  flex: 0 0 auto;
}

.page-news .news-archive__media {
  margin-top: clamp(24px, 3.4vw, 44px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-archive__rules li {
    grid-template-columns: 7rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0 1.4rem;
  }

  .page-news .series__steps li {
    grid-template-columns: 5rem 10rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.5rem 1.1rem;
  }

  .page-news .series__step-t {
    grid-column: 2;
  }

  .page-news .series__step-d {
    grid-column: 3;
  }
}

@media (min-width: 860px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-news .news-log__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }

  .page-news .news-archive__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 960px) {
  .page-news .news-board {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .news-rail__chips {
    flex-direction: column;
    flex-wrap: wrap;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-news .news-rail__chips .filter-chip {
    width: 100%;
    justify-content: space-between;
  }

  .page-news .news-item {
    grid-template-columns: 3.1rem minmax(0, 1fr) auto;
    grid-template-areas: "idx title meta";
    align-items: center;
    column-gap: 1.3rem;
    row-gap: 0;
    padding: 13px 10px 13px 2px;
  }

  .page-news .news-item__idx {
    padding-top: 0;
  }

  .page-news .news-item__title {
    font-size: 1.0625rem;
  }

  .page-news .news-item__meta {
    display: grid;
    grid-template-columns: auto auto var(--news-time-w);
    align-items: center;
    gap: 0 0.9rem;
    justify-content: end;
  }

  .page-news .news-item__time {
    margin-left: 0;
    text-align: right;
  }

  .page-news .news-series__grid {
    grid-template-columns: minmax(0, 330px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(30px, 3.6vw, 60px);
  }

  .page-news .news-series .media {
    max-width: none;
  }

  .page-news .series__sum {
    padding: 20px 2px;
  }
}

@media (hover: hover) {
  .page-news .news-item:hover {
    background-color: rgba(237, 233, 224, 0.6);
  }

  .page-news .news-item:hover .news-item__idx {
    color: var(--blue);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item__idx,
  .page-news .news-item__to,
  .page-news .series__mark::before,
  .page-news .series__mark::after {
    transition: none;
  }
}