.page-news {
  --news-line: 1px solid var(--track);
  --news-gap: clamp(1rem, 2.4vw, 1.5rem);
}

/* ===== 首屏 ===== */
.page-news .news-hero {
  padding-block: clamp(1.4rem, 3.5vw, 2.6rem) clamp(2.2rem, 5vw, 4rem);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-news .news-hero h1 {
  margin: 0.6rem 0 1rem;
  max-width: 18ch;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-news .news-hero .lead {
  max-width: 46ch;
  color: var(--signal);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* 系列板 */
.page-news .series-board {
  position: relative;
  overflow: hidden;
  padding: clamp(1.2rem, 3vw, 1.8rem);
  background: var(--panel);
  border: var(--news-line);
  border-radius: var(--radius);
}

.page-news .series-board::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--pulse);
  animation: newsPulse 2.4s ease-in-out infinite;
}

.page-news .series-board__label {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

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

.page-news .series-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.9rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--track);
}

.page-news .series-row:last-child {
  border-bottom: 0;
  padding-bottom: 0.2rem;
}

.page-news .series-row__idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 0.2rem;
}

.page-news .series-row__name {
  display: block;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
  line-height: 1.5;
}

.page-news .series-row__name span {
  display: block;
  font-family: var(--font-en);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--signal);
}

.page-news .series-row__desc {
  grid-column: 2;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--signal);
}

@media (min-width: 960px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }
}

/* ===== 卡片流 ===== */
.page-news .deck-media {
  margin: 0 0 clamp(1.4rem, 3vw, 2rem);
}

.page-news .news-deck {
  position: relative;
}

.page-news .news-deck__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .news-deck__bar {
  display: flex;
  gap: 0.5rem;
  padding: 0.2rem 0 1.1rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-deck__bar .tag {
  flex: 0 0 auto;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news #sf-all:checked ~ .news-deck__bar label[for="sf-all"],
.page-news #sf-play:checked ~ .news-deck__bar label[for="sf-play"],
.page-news #sf-update:checked ~ .news-deck__bar label[for="sf-update"],
.page-news #sf-zone:checked ~ .news-deck__bar label[for="sf-zone"],
.page-news #sf-mobile:checked ~ .news-deck__bar label[for="sf-mobile"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-news #sf-all:focus-visible ~ .news-deck__bar label[for="sf-all"],
.page-news #sf-play:focus-visible ~ .news-deck__bar label[for="sf-play"],
.page-news #sf-update:focus-visible ~ .news-deck__bar label[for="sf-update"],
.page-news #sf-zone:focus-visible ~ .news-deck__bar label[for="sf-zone"],
.page-news #sf-mobile:focus-visible ~ .news-deck__bar label[for="sf-mobile"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news #sf-play:checked ~ .deck .case:not([data-series="play"]),
.page-news #sf-update:checked ~ .deck .case:not([data-series="update"]),
.page-news #sf-zone:checked ~ .deck .case:not([data-series="zone"]),
.page-news #sf-mobile:checked ~ .deck .case:not([data-series="mobile"]) {
  display: none;
}

.page-news .deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.page-news .case {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.05rem, 2.4vw, 1.4rem);
  background: var(--panel);
  border: var(--news-line);
  border-radius: var(--radius-s);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-news .case:hover,
.page-news .case:focus-within {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 16px 36px -24px rgba(0, 229, 212, 0.8);
}

.page-news .case__tag {
  align-self: flex-start;
  margin: 0 0 0.85rem;
  padding: 0.22rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--warm);
  border-radius: 999px;
}

.page-news .case[data-series="update"] .case__tag {
  background: var(--cyan);
}

.page-news .case[data-series="zone"] .case__tag {
  background: var(--violet);
  color: var(--paper);
}

.page-news .case[data-series="mobile"] .case__tag {
  background: var(--night);
  color: var(--cyan);
  border: 1px solid var(--violet);
}

.page-news .case__title {
  margin: 0 0 0.6rem;
  font-size: clamp(1.02rem, 2.2vw, 1.16rem);
  font-weight: 700;
  line-height: 1.5;
}

.page-news .case__title a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .case__title a:hover,
.page-news .case__title a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .case__desc {
  margin: 0 0 0.9rem;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--signal);
}

.page-news .case__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: auto 0 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-news .case__idx {
  color: var(--cyan);
}

.page-news .meta-tip {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted var(--track);
}

.page-news .meta-tip__pop {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.55rem);
  z-index: 6;
  width: min(15rem, 62vw);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  line-height: 1.7;
  letter-spacing: 0;
  color: var(--paper);
  background: var(--night);
  border: 1px solid var(--violet);
  border-radius: var(--radius-s);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
}

.page-news .meta-tip:hover .meta-tip__pop,
.page-news .meta-tip:focus-within .meta-tip__pop {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.page-news .case__pop {
  max-height: 0;
  margin-top: 0;
  padding-left: 0.7rem;
  overflow: hidden;
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--paper);
  border-left: 2px solid var(--cyan);
  opacity: 0;
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin-top 0.3s var(--ease);
}

.page-news .case:hover .case__pop,
.page-news .case:focus-within .case__pop {
  max-height: 10rem;
  margin-top: 0.9rem;
  opacity: 0.94;
}

@media (min-width: 680px) {
  .page-news .deck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-news .deck {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .deck .case:nth-child(3n + 2) {
    margin-top: 1.6rem;
  }
  .page-news .deck .case:nth-child(3n) {
    margin-bottom: 1.6rem;
  }
}

@media (max-width: 679px) {
  .page-news .case__pop {
    max-height: none;
    margin-top: 0.9rem;
    opacity: 0.94;
  }
  .page-news .meta-tip__pop {
    left: 0;
    width: min(16rem, 72vw);
    transform: translate(0, 6px);
  }
  .page-news .meta-tip:hover .meta-tip__pop,
  .page-news .meta-tip:focus-within .meta-tip__pop {
    transform: translate(0, 0);
  }
}

/* ===== 版本更新 ===== */
.page-news .versions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.4rem);
}

.page-news .timeline {
  margin: 0;
  padding: 0 0 0 1.5rem;
  list-style: none;
  border-left: 2px dotted var(--track);
}

.page-news .timeline__item {
  position: relative;
  padding-bottom: 1.7rem;
}

.page-news .timeline__item:last-child {
  padding-bottom: 0;
}

.page-news .timeline__item::before {
  content: "";
  position: absolute;
  left: -2.05rem;
  top: 0.45rem;
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 212, 0.16);
  animation: newsPulse 2.4s ease-in-out infinite;
}

.page-news .timeline__mark {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-news .timeline__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .timeline__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--signal);
}

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

@media (min-width: 900px) {
  .page-news .versions__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

/* ===== 专区动态 ===== */
.page-news .zone__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.4rem);
  align-items: start;
}

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

.page-news .zone__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
}

.page-news .zone__item {
  position: relative;
  padding: 1.05rem 1.15rem 1.05rem 1.4rem;
  background: var(--panel);
  border: var(--news-line);
  border-left: 3px solid var(--violet);
  border-radius: var(--radius-s);
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-news .zone__item:hover {
  transform: translateX(3px);
  border-left-color: var(--cyan);
}

.page-news .zone__idx {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .zone__title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .zone__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--signal);
}

@media (min-width: 900px) {
  .page-news .zone__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
}

/* ===== 移动端手记 ===== */
.page-news .mobile__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.4rem);
  align-items: start;
}

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

.page-news .note {
  padding: 1.05rem 1.15rem;
  background: linear-gradient(150deg, var(--night) 0%, var(--panel) 68%);
  border: var(--news-line);
  border-radius: var(--radius-s);
}

.page-news .note__idx {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--warm);
}

.page-news .note__title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .note__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--signal);
}

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

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

/* ===== 合作专题 ===== */
.page-news .coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.6rem);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  background:
    linear-gradient(128deg, rgba(139, 92, 246, 0.22) 0%, rgba(7, 7, 12, 0) 62%),
    var(--panel);
  border: 1px solid var(--violet);
  border-radius: var(--radius);
}

.page-news .coop__title {
  margin: 0.5rem 0 0.9rem;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--paper);
}

.page-news .coop__text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.95;
  color: var(--signal);
}

.page-news .coop__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.page-news .coop__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0;
}

.page-news .coop__fact {
  padding: 1rem 1.1rem;
  background: var(--ink);
  border: var(--news-line);
  border-radius: var(--radius-s);
}

.page-news .coop__fact dt {
  margin-bottom: 0.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-news .coop__fact dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.page-news .coop__fact .stat__num {
  font-family: var(--font-en);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-news .coop__fact .stat__label {
  font-size: 0.78rem;
  color: var(--signal);
}

@media (min-width: 820px) {
  .page-news .coop {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
  .page-news .coop__facts {
    grid-template-columns: 1fr;
  }
}

@keyframes newsPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.78;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-board::before,
  .page-news .timeline__item::before {
    animation: none;
  }
  .page-news .case,
  .page-news .zone__item,
  .page-news .case__pop,
  .page-news .meta-tip__pop {
    transition: none;
  }
  .page-news .case:hover,
  .page-news .case:focus-within,
  .page-news .zone__item:hover {
    transform: none;
  }
}