.page-news {
  --news-ease: cubic-bezier(.22, .61, .36, 1);
  --news-sticky-top: 6rem;
}

.page-news [data-season="spring"] { --season: var(--spring); --season-accent: var(--spring-accent); }
.page-news [data-season="summer"] { --season: var(--summer); --season-accent: var(--summer-accent); }
.page-news [data-season="autumn"] { --season: var(--autumn); --season-accent: var(--autumn-accent); }
.page-news [data-season="winter"] { --season: var(--winter); --season-accent: var(--summer); }

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

/* ---------- 刊头 ---------- */
.page-news .news-masthead {
  padding-block: clamp(2.25rem, 5vw, 4rem) clamp(2rem, 4vw, 3.25rem);
  background: linear-gradient(180deg, var(--paper) 0%, var(--frost) 100%);
  border-bottom: var(--line);
}

.page-news .news-masthead__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3.25rem);
}

.page-news .news-masthead h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--winter);
  margin: .65rem 0 0;
  max-width: 18em;
}

.page-news .news-masthead .sk-lede {
  margin-top: 1.1rem;
  max-width: 36em;
  color: var(--body);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.85;
}

.page-news .news-masthead__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.15rem 2.75rem;
  margin: 2rem 0 0;
  padding: 1.25rem 0 0;
  border-top: var(--line);
  list-style: none;
}

.page-news .news-masthead__num {
  display: block;
  font-size: clamp(1.55rem, 3.4vw, 2.2rem);
  font-weight: 600;
  line-height: 1;
  color: var(--season);
}

.page-news .news-masthead__cap {
  display: block;
  margin-top: .45rem;
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-news .news-sidecard {
  padding: 1.5rem 1.5rem 1.25rem;
}

.page-news .news-sidecard__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--muted);
}

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

.page-news .news-sidecard__item a {
  display: flex;
  align-items: baseline;
  gap: .85rem;
  padding: .7rem .2rem;
  border-bottom: var(--line);
  color: var(--winter);
  text-decoration: none;
  font-size: .96rem;
  transition: color .18s var(--news-ease), padding-left .18s var(--news-ease);
}

.page-news .news-sidecard__item:last-child a {
  border-bottom: none;
}

.page-news .news-sidecard__item a:hover,
.page-news .news-sidecard__item a:focus-visible {
  color: var(--season);
  padding-left: .6rem;
}

.page-news .news-sidecard__num {
  font-size: .76rem;
  color: var(--season);
}

/* ---------- 本期时序 ---------- */
.page-news .news-feed__intro,
.page-news .news-series__intro,
.page-news .news-release__intro {
  max-width: 40em;
  margin: .75rem 0 0;
  color: var(--body);
  font-size: 1rem;
  line-height: 1.8;
}

.page-news .news-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.5rem;
  margin: clamp(1.25rem, 3vw, 2rem) 0 clamp(1.5rem, 3vw, 2.25rem);
  padding: 1rem 1.25rem;
  background: var(--paper);
  border: var(--line);
}

.page-news .news-tools__input {
  flex: 1 1 15rem;
  min-width: 0;
  padding: .35rem 0;
  border: none;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  font-family: var(--font-sans);
  font-size: .95rem;
  color: var(--ink);
  outline: none;
}

.page-news .news-tools__input:focus-visible {
  border-bottom-color: var(--season);
}

.page-news .news-tools__count {
  margin: 0 0 0 auto;
  font-size: .82rem;
  color: var(--muted);
}

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

.page-news .news-entry {
  position: relative;
  padding: clamp(1.2rem, 2.6vw, 1.85rem) 0 clamp(1.2rem, 2.6vw, 1.85rem) clamp(0rem, 2vw, 1.5rem);
  border-bottom: var(--line);
}

.page-news .news-entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(1.2rem, 2.6vw, 1.85rem);
  width: 3px;
  height: 1.4rem;
  background: var(--season);
  transition: height .28s var(--news-ease);
}

.page-news .news-entry:hover::before,
.page-news .news-entry:focus-within::before {
  height: calc(100% - 3rem);
}

.page-news .news-entry--feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.1rem, 2.6vw, 1.75rem);
}

.page-news .news-entry__figure {
  margin: 0;
  padding: .5rem;
  background: var(--paper);
  border: var(--line);
}

.page-news .news-entry__figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .news-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .9rem;
  margin: 0 0 .65rem;
  font-size: .78rem;
  color: var(--muted);
}

.page-news .news-entry__ver {
  color: var(--season);
  letter-spacing: .04em;
}

.page-news .news-entry__title {
  margin: 0 0 .55rem;
  font-family: var(--font-serif);
  font-size: clamp(1.12rem, 2.4vw, 1.45rem);
  line-height: 1.4;
  color: var(--winter);
}

.page-news .news-entry__desc {
  margin: 0;
  max-width: 40em;
  color: var(--body);
  font-size: .96rem;
  line-height: 1.78;
}

.page-news .news-entry__summary {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin: 0;
  max-width: 40em;
  color: var(--muted);
  font-size: .89rem;
  line-height: 1.72;
  transition: max-height .35s var(--news-ease), opacity .25s var(--news-ease), margin-top .25s var(--news-ease);
}

.page-news .news-entry:hover .news-entry__summary,
.page-news .news-entry:focus-within .news-entry__summary {
  max-height: 12rem;
  opacity: 1;
  margin-top: .65rem;
}

/* ---------- 版本发布日志 ---------- */
.page-news .news-seasonbar {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin: 0 0 clamp(1.5rem, 3vw, 2.25rem);
}

.page-news .news-seasonbar a {
  padding: .5rem .9rem;
  border: var(--line);
  background: var(--paper);
  color: var(--winter);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  transition: background .2s var(--news-ease), color .2s var(--news-ease), border-color .2s var(--news-ease);
}

.page-news .news-seasonbar a:hover,
.page-news .news-seasonbar a:focus-visible {
  background: var(--season);
  border-color: var(--season);
  color: var(--paper);
}

.page-news .news-release__figure {
  margin: 0 0 clamp(1.75rem, 3.5vw, 2.5rem);
}

.page-news .news-release {
  border-top: var(--line);
}

.page-news .news-release__group {
  background: var(--paper);
  border-bottom: var(--line);
}

.page-news .news-release__group .sk-disclosure__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .75rem;
  padding: 1.15rem .35rem;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--winter);
  list-style: none;
}

.page-news .news-release__group .sk-disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-news .news-release__group .sk-disclosure__summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--season);
}

.page-news .news-release__group[open] .sk-disclosure__summary::after {
  content: "－";
}

.page-news .news-release__ver {
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--season);
}

.page-news .news-release__name {
  font-weight: 500;
}

.page-news .news-release__list {
  list-style: none;
  margin: 0;
  padding: 0 .35rem 1.75rem;
  display: grid;
  gap: .95rem;
}

.page-news .news-release__list li {
  position: relative;
  padding-left: 1.5rem;
  max-width: 46em;
  color: var(--body);
  font-size: .95rem;
  line-height: 1.78;
}

.page-news .news-release__list li::before {
  content: "";
  position: absolute;
  left: .1rem;
  top: .68em;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--season);
}

/* ---------- 设备与旧版支持 ---------- */
.page-news .news-legacy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-news .news-legacy__lede {
  max-width: 40em;
  margin: .8rem 0 0;
  color: var(--body);
  font-size: 1rem;
  line-height: 1.85;
}

.page-news .news-legacy__figure {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
}

.page-news .news-legacy__qa {
  margin-top: clamp(1.25rem, 2.5vw, 1.75rem);
  border-top: var(--line);
}

.page-news .news-legacy__item {
  border-bottom: var(--line);
}

.page-news .news-legacy__item .sk-disclosure__summary {
  padding: 1rem .2rem;
  cursor: pointer;
  font-size: 1rem;
  color: var(--winter);
  font-family: var(--font-sans);
  font-weight: 600;
  list-style: none;
}

.page-news .news-legacy__item .sk-disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-news .news-legacy__item .sk-disclosure__summary::before {
  content: "▸";
  display: inline-block;
  margin-right: .6rem;
  color: var(--season);
  transition: transform .2s var(--news-ease);
}

.page-news .news-legacy__item[open] .sk-disclosure__summary::before {
  transform: rotate(90deg);
}

.page-news .news-legacy__item .sk-disclosure__body p {
  margin: 0 0 1.1rem;
  padding-left: 1.35rem;
  max-width: 40em;
  color: var(--body);
  font-size: .95rem;
  line-height: 1.82;
}

.page-news .news-legacy__aside {
  padding: 1.5rem 1.35rem;
  background: var(--paper);
  border: var(--line);
}

.page-news .news-legacy__aside-title {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-news .news-legacy__ways {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-news .news-legacy__way {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .35rem .75rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px dashed var(--rule);
}

.page-news .news-legacy__way:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-news .news-legacy__num {
  grid-row: span 2;
  font-size: .85rem;
  color: var(--season);
  line-height: 1.6;
}

.page-news .news-legacy__way-title {
  display: block;
  color: var(--winter);
  font-size: .96rem;
}

.page-news .news-legacy__way p {
  margin: .3rem 0 0;
  color: var(--body);
  font-size: .88rem;
  line-height: 1.7;
}

.page-news .news-legacy__aside-note {
  margin: 1.25rem 0 1rem;
  padding-top: 1rem;
  border-top: var(--line);
  color: var(--muted);
  font-size: .84rem;
  line-height: 1.7;
}

.page-news .news-legacy__cta {
  display: inline-block;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-news .news-series__figure {
  margin: 0;
}

.page-news .news-series__cards {
  display: grid;
  gap: 1rem;
}

.page-news .news-series__card {
  padding: 1.2rem 1.35rem 1.35rem;
  background: var(--paper);
  border: var(--line);
  border-left: 4px solid var(--season);
}

.page-news .news-series__label {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--season);
}

.page-news .news-series__title {
  margin: 0 0 .5rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--winter);
}

.page-news .news-series__body {
  margin: 0;
  color: var(--body);
  font-size: .93rem;
  line-height: 1.78;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-news .news-rhythm__item {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: 0 1rem;
  padding-top: 1rem;
  border-top: var(--line);
}

.page-news .news-rhythm__num {
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--season);
}

.page-news .news-rhythm__title {
  margin: 0 0 .4rem;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.4;
  color: var(--winter);
}

.page-news .news-rhythm__item p {
  margin: 0;
  max-width: 42em;
  color: var(--body);
  font-size: .95rem;
  line-height: 1.8;
}

.page-news .news-rhythm__hint {
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: 1rem 1.25rem;
  background: var(--paper);
  border-left: 4px solid var(--season);
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.75;
}

/* ---------- 延伸入口 ---------- */
.page-news .news-more__links {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  padding: 0;
  border-top: var(--line);
}

.page-news .news-more__links li {
  border-bottom: var(--line);
}

.page-news .news-more__links a {
  display: grid;
  gap: .35rem;
  padding: 1.2rem .3rem;
  text-decoration: none;
  color: var(--winter);
  transition: padding-left .22s var(--news-ease), color .22s var(--news-ease);
}

.page-news .news-more__links a:hover,
.page-news .news-more__links a:focus-visible {
  padding-left: .9rem;
  color: var(--season);
}

.page-news .news-more__links strong {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-weight: 600;
}

.page-news .news-more__links span {
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-series__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(255px, 22rem);
    align-items: start;
  }

  .page-news .news-masthead__side {
    position: sticky;
    top: var(--news-sticky-top);
  }

  .page-news .news-entry--feature {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-news .news-legacy__grid {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 20.5rem);
    align-items: start;
  }

  .page-news .news-legacy__aside {
    position: sticky;
    top: var(--news-sticky-top);
  }

  .page-news .news-series__layout {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }
}

@media (hover: none) {
  .page-news .news-entry__summary {
    max-height: none;
    opacity: 1;
    margin-top: .65rem;
  }

  .page-news .news-entry::before {
    height: calc(100% - 3rem);
  }
}

@media (max-width: 480px) {
  .page-news .news-masthead__stats {
    gap: 1rem 1.75rem;
  }

  .page-news .news-tools {
    padding: .9rem 1rem;
  }

  .page-news .news-tools__count {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry__summary,
  .page-news .news-entry::before,
  .page-news .news-sidecard__item a,
  .page-news .news-seasonbar a,
  .page-news .news-more__links a,
  .page-news .news-legacy__item .sk-disclosure__summary::before {
    transition: none;
  }
}