.page-news {
  --news-edge: rgba(138, 212, 227, 0.16);
  --news-edge-2: rgba(138, 212, 227, 0.34);
  --news-card: rgba(11, 27, 34, 0.74);
  --news-deep: rgba(8, 19, 26, 0.62);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(2.4rem, 6vw, 4.4rem);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
}

.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 19, 26, 0.68) 0%, rgba(8, 19, 26, 0.9) 58%, var(--ink-800) 100%);
  pointer-events: none;
}

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

.page-news .news-hero__title {
  margin: 0.35em 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 6.2vw, 4rem);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 22ch;
}

.page-news .news-hero__lede {
  max-width: 58ch;
  margin-top: 1.1em;
  color: var(--text-dim);
}

.page-news .news-hero__facts {
  list-style: none;
  margin: 0;
  padding: 1.3rem 0 0;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 2.6rem;
  border-top: 1px solid var(--news-edge);
}

.page-news .news-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
}

.page-news .news-hero__facts .num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1;
}

.page-news .news-hero__k {
  font-size: 0.84rem;
  color: var(--text-dim);
}

/* 专题带 */
.page-news .news-hero__track {
  position: relative;
  z-index: 1;
  margin-top: clamp(2rem, 5vw, 3.4rem);
  padding: clamp(1.4rem, 3.4vw, 2.2rem) 0 clamp(1.6rem, 4vw, 2.6rem);
  background: linear-gradient(180deg, rgba(30, 83, 72, 0.5) 0%, rgba(14, 47, 42, 0.86) 100%);
  clip-path: polygon(0 20px, 100% 0, 100% 100%, 0 100%);
}

.page-news .news-hero__tracklabel {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--ice-300);
  text-transform: uppercase;
}

.page-news .news-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(255px, 300px);
  gap: var(--gap);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.8rem;
}

.page-news .news-strip::-webkit-scrollbar {
  height: 6px;
}

.page-news .news-strip::-webkit-scrollbar-thumb {
  background: rgba(138, 212, 227, 0.28);
  border-radius: 99px;
}

.page-news .topic-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.25rem 1.15rem 1.35rem;
  background: var(--news-card);
  border: 1px solid var(--news-edge);
  border-left: 3px solid var(--ice-600);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-news .topic-card:hover {
  background: rgba(30, 83, 72, 0.6);
  border-color: var(--news-edge-2);
}

.page-news .topic-card--put { border-left-color: var(--coral-500); }
.page-news .topic-card--leave { border-left-color: var(--amber-400); }
.page-news .topic-card--algo { border-left-color: var(--ice-600); }
.page-news .topic-card--room { border-left-color: var(--ice-300); }
.page-news .topic-card--end { border-left-color: var(--moss-600); }

.page-news .topic-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin: 0;
}

.page-news .topic-card__meta .num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--stone-400);
}

.page-news .topic-card__title {
  margin: 0.15rem 0 0;
  font-family: var(--font-head);
  font-size: 1.16rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text);
}

.page-news .topic-card__sum {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-dim);
}

/* ---------- 通用块头 ---------- */
.page-news .news-head {
  max-width: 62ch;
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-news .news-head h2 {
  margin: 0.3em 0 0.45em;
  font-family: var(--font-head);
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  font-weight: 300;
  line-height: 1.12;
  color: var(--text);
}

.page-news .news-head__sub {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- 本周更新 ---------- */
.page-news .news-latest {
  background: var(--ink-800);
}

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

.page-news .news-post {
  display: grid;
  gap: 0.55rem;
  padding: 1.35rem 0.6rem 1.35rem 0.2rem;
  border-bottom: 1px solid var(--news-edge);
  transition: background var(--t) var(--ease), padding-left var(--t) var(--ease);
}

.page-news .news-post:hover {
  background: rgba(46, 143, 168, 0.08);
  padding-left: 0.7rem;
}

.page-news .news-post__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-news .news-post__tag {
  margin: 0 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--ice-300);
  text-transform: uppercase;
}

.page-news .news-post__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-head);
  font-size: 1.14rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--text);
}

.page-news .news-post__sum {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 62ch;
}

.page-news .news-post__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--stone-400);
}

@media (min-width: 860px) {
  .page-news .news-post {
    grid-template-columns: 118px minmax(0, 1fr) 96px;
    align-items: start;
    gap: 0 2rem;
  }
  .page-news .news-post__when {
    text-align: right;
    padding-top: 0.4rem;
  }
}

/* ---------- 禁手连载 ---------- */
.page-news .news-serial {
  background: linear-gradient(180deg, rgba(30, 83, 72, 0.42) 0%, rgba(14, 47, 42, 0.55) 100%);
  border-top: 1px solid var(--news-edge);
  border-bottom: 1px solid var(--news-edge);
}

.page-news .news-rail-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--amber-400);
}

.page-news .news-rail-label::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber-400);
}

.page-news .news-rail-label--gap {
  margin-top: clamp(2rem, 5vw, 3rem);
  color: var(--ice-300);
}

.page-news .news-rail-label--gap::before {
  background: var(--ice-300);
}

.page-news .news-acc {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-news .accordion__trigger {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  width: 100%;
  padding: 1rem 1.1rem;
  text-align: left;
  background: rgba(8, 19, 26, 0.42);
  border: 1px solid var(--news-edge);
  border-left: 3px solid var(--coral-500);
  color: var(--text);
  cursor: pointer;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-news .accordion__trigger:hover {
  background: rgba(46, 143, 168, 0.14);
  border-color: var(--news-edge-2);
  border-left-color: var(--coral-500);
}

.page-news .accordion__trigger[aria-expanded="true"] {
  background: rgba(46, 143, 168, 0.18);
  border-left-color: var(--ice-300);
}

.page-news .accordion__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ice-300);
}

.page-news .news-acc__name {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-size: 1.04rem;
  line-height: 1.35;
}

.page-news .news-acc__count {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--stone-400);
}

.page-news .accordion__panel {
  padding: 0.6rem 0 0.4rem 0.2rem;
}

.page-news .accordion__panel .clause {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin: 0;
  padding: 0.62rem 0.5rem;
  border-bottom: 1px dashed rgba(138, 212, 227, 0.13);
}

.page-news .accordion__panel .clause:last-child {
  border-bottom: 0;
}

.page-news .clause__no {
  flex: 0 0 auto;
  min-width: 1.9rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--coral-500);
}

.page-news .clause__body {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

@media (min-width: 780px) {
  .page-news .accordion__panel .clause {
    padding-left: 1.4rem;
  }
  .page-news .clause__body {
    max-width: 74ch;
  }
}

.page-news .news-serial__foot {
  margin: clamp(1.8rem, 4vw, 2.6rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--news-edge);
  font-size: 0.88rem;
  color: var(--text-dim);
}

.page-news .news-serial__foot a {
  color: var(--ice-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 算法与房间节奏 ---------- */
.page-news .news-rhythm {
  background: linear-gradient(180deg, rgba(30, 83, 72, 0.24) 0%, rgba(11, 27, 34, 0) 62%);
}

.page-news .news-rhythm__top {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  align-items: start;
}

@media (min-width: 880px) {
  .page-news .news-rhythm__top {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.page-news .news-rhythm__fig {
  margin: 0;
  border: 1px solid var(--news-edge);
}

.page-news .news-rhythm__fig img,
.page-news .news-rooms__fig img,
.page-news .news-endgame__fig img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .news-rhythm__prose p {
  margin: 0 0 1rem;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-news .news-rhythm__prose a {
  color: var(--ice-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-rooms {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  align-items: start;
}

@media (min-width: 900px) {
  .page-news .news-rooms {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  }
}

.page-news .room {
  padding: 1.1rem 1.1rem 1.2rem;
  background: rgba(8, 19, 26, 0.46);
  border-left: 2px solid var(--amber-400);
}

.page-news .room + .room {
  margin-top: 0.75rem;
}

.page-news .room__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  margin: 0 0 0.5rem;
}

.page-news .room__num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--amber-400);
}

.page-news .room__name {
  font-family: var(--font-head);
  font-size: 1.06rem;
  color: var(--text);
}

.page-news .room__time {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--stone-400);
}

.page-news .room__body {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-news .news-rooms__fig {
  margin: 0;
  border: 1px solid var(--news-edge);
}

.page-news .news-rooms__fig img {
  min-height: 240px;
}

/* ---------- 残局笔记 ---------- */
.page-news .news-endgame {
  background: var(--pine-900);
  border-top: 1px solid var(--news-edge);
}

.page-news .news-endgame__body {
  display: grid;
  gap: clamp(1.4rem, 3.4vw, 2.2rem);
  align-items: start;
}

@media (min-width: 940px) {
  .page-news .news-endgame__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }
}

.page-news .news-endgame__fig {
  margin: 0;
  border: 1px solid var(--news-edge);
}

.page-news .news-endgame__strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(248px, 280px);
  gap: var(--gap);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.8rem;
}

.page-news .endgame-card {
  scroll-snap-align: start;
  padding: 1.15rem 1.05rem 1.3rem;
  background: rgba(8, 19, 26, 0.55);
  border: 1px solid var(--news-edge);
  border-top: 3px solid var(--moss-600);
}

.page-news .endgame-card__lvl {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}

.page-news .endgame-card__title {
  margin: 0 0 0.55rem;
  font-family: var(--font-head);
  font-size: 1.08rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--text);
}

.page-news .endgame-card__k {
  margin: 0.9rem 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--coral-500);
  text-transform: uppercase;
}

.page-news .endgame-card__body {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-news .news-endgame__foot {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--news-edge);
  font-size: 0.88rem;
  color: var(--text-dim);
}

.page-news .news-endgame__foot a {
  color: var(--ice-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 栏目与更新节奏 ---------- */
.page-news .news-cadence {
  background: var(--ink-800);
}

.page-news .news-facets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap);
}

@media (min-width: 700px) {
  .page-news .news-facets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-news .news-facets {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-news .facet {
  padding: 1.1rem 1rem 1.2rem;
  background: rgba(8, 19, 26, 0.4);
  border: 1px solid var(--news-edge);
  border-top: 3px solid var(--ice-600);
}

.page-news .facet--coral { border-top-color: var(--coral-500); }
.page-news .facet--amber { border-top-color: var(--amber-400); }
.page-news .facet--ice { border-top-color: var(--ice-600); }
.page-news .facet--ice-soft { border-top-color: var(--ice-300); }
.page-news .facet--moss { border-top-color: var(--moss-600); }

.page-news .facet__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--stone-400);
  margin-bottom: 0.6rem;
}

.page-news .facet__name {
  margin: 0 0 0.45rem;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 400;
  color: var(--text);
}

.page-news .facet__body {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.68;
  color: var(--text-dim);
}

.page-news .news-cadence__foot {
  margin-top: clamp(1.4rem, 3.4vw, 2rem);
  padding: 1.1rem 1.2rem;
  background: rgba(30, 83, 72, 0.34);
  border-left: 3px solid var(--ice-300);
}

.page-news .news-cadence__foot p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 下一步 ---------- */
.page-news .news-next {
  background: linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-news .news-next__title {
  margin: 0 0 clamp(1rem, 2.6vw, 1.6rem);
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 300;
  color: var(--text);
}

.page-news .news-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

@media (min-width: 760px) {
  .page-news .news-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem 2rem;
  }
}

.page-news .news-next__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.9rem;
  padding: 0.95rem 0 0.95rem 1rem;
  border-left: 2px solid var(--news-edge-2);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-news .news-next__item:hover {
  border-left-color: var(--amber-400);
  background: rgba(232, 177, 74, 0.06);
}

.page-news .news-next__item a {
  flex: 0 0 auto;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--ice-300);
  text-decoration: none;
}

.page-news .news-next__item a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .news-next__item span {
  flex: 1 1 220px;
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--text-dim);
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 520px) {
  .page-news .news-hero__facts {
    gap: 0.7rem 1.6rem;
  }
  .page-news .news-hero__facts .num {
    font-size: 1.3rem;
  }
  .page-news .news-strip,
  .page-news .news-endgame__strip {
    grid-auto-columns: minmax(228px, 82vw);
  }
  .page-news .accordion__trigger {
    flex-wrap: wrap;
    gap: 0.35rem 0.7rem;
  }
  .page-news .news-acc__count {
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .news-post,
  .page-news .accordion__trigger,
  .page-news .news-next__item {
    transition: none;
  }
}