.page-news {
  background: var(--night-blue);
  color: var(--board-white);
  font-family: var(--font-body);
  position: relative;
}

/* ---------- 页头 ---------- */
.page-news .news-masthead {
  border-bottom: var(--rule) solid var(--signal-orange);
  padding: calc(var(--gutter) * 1.4) 0 calc(var(--gutter) * 1.4);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(57, 210, 200, .10) 0%, transparent 58%),
    linear-gradient(180deg, rgba(5, 9, 13, .55) 0%, rgba(11, 27, 43, 0) 70%);
}

.page-news .news-crumb {
  margin-bottom: 26px;
  font-size: 13px;
  letter-spacing: .06em;
}

.page-news .news-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--label-teal);
}

.page-news .news-title {
  margin: 0 0 22px;
  max-width: 16ch;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(34px, 6.4vw, 74px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--board-white);
}

.page-news .news-lede {
  margin: 0 0 30px;
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.9;
  color: rgba(246, 248, 247, .82);
}

.page-news .news-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid rgba(147, 168, 166, .3);
}

.page-news .news-metrics li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-news .news-metrics__key {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--label-teal);
}

.page-news .news-hero-media {
  position: relative;
  margin: 38px 0 0;
  border: 1px solid rgba(147, 168, 166, .28);
  border-bottom: var(--rule) solid var(--signal-orange);
}

.page-news .news-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  max-width: 100%;
}

.page-news .news-hero-caption {
  padding: 10px 14px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--label-teal);
  background: rgba(5, 9, 13, .6);
}

/* ---------- 主布局 ---------- */
.page-news .news-shell {
  margin-block: 46px 80px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

.page-news .news-flow {
  display: flex;
  flex-direction: column;
  gap: 62px;
  min-width: 0;
}

/* ---------- 左侧目录 ---------- */
.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-news .news-rail__title {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--label-teal);
}

.page-news .news-rail__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-rail__link {
  display: block;
  padding: 7px 12px;
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  color: rgba(246, 248, 247, .68);
  background: rgba(147, 168, 166, .08);
  border: 1px solid rgba(147, 168, 166, .22);
  transition: color var(--dur-short) var(--ease),
              border-color var(--dur-short) var(--ease),
              background var(--dur-short) var(--ease);
}

.page-news .news-rail__link:hover {
  color: var(--electric-teal);
  border-color: var(--electric-teal);
}

.page-news .news-rail__link[data-active="true"] {
  color: var(--signal-orange);
  border-color: var(--signal-orange);
  background: rgba(255, 122, 26, .12);
}

.page-news .news-rail__note {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--label-teal);
}

/* ---------- 章节通用 ---------- */
.page-news .news-sec {
  min-width: 0;
  scroll-margin-top: 28px;
}

.page-news .news-sec__head {
  margin-bottom: 26px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(147, 168, 166, .28);
}

.page-news .news-sec__title {
  margin: 0 0 8px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.22;
  color: var(--board-white);
}

.page-news .news-sec__no {
  margin-right: .55em;
  font-family: var(--font-mono);
  font-size: .56em;
  vertical-align: .22em;
  color: var(--score-red);
}

.page-news .news-sec__sub {
  margin: 0;
  max-width: 48em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 248, 247, .62);
}

/* ---------- 01 分类 ---------- */
.page-news .news-cats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-news .news-cat {
  border-top: var(--rule) solid var(--signal-orange);
  padding-top: 16px;
  min-width: 0;
}

.page-news .news-cat__media {
  margin: 0 0 14px;
  overflow: hidden;
}

.page-news .news-cat__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
  filter: saturate(.85) contrast(1.05);
}

.page-news .news-cat__tag {
  display: inline-block;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--label-teal);
}

.page-news .news-cat__name {
  margin: 0 0 10px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  color: var(--board-white);
}

.page-news .news-cat__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(246, 248, 247, .72);
}

.page-news .news-cat--wide {
  margin-top: 28px;
  border-top: none;
  border-left: var(--rule) solid var(--electric-teal);
  padding: 20px 22px;
  background: var(--arena-green);
}

.page-news .news-cat--wide .news-cat__name {
  font-size: 21px;
}

/* ---------- 02 观察列表 ---------- */
.page-news .news-log {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-news .news-log__phase {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--electric-teal);
  border-top: 3px solid rgba(57, 210, 200, .38);
}

.page-news .news-log__phase::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: rgba(57, 210, 200, .26);
}

.page-news .news-log__list {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas:
    "no tag"
    "no text";
  column-gap: 14px;
  row-gap: 5px;
  padding: 15px 0;
  border-bottom: 3px solid rgba(147, 168, 166, .16);
  transition: background var(--dur-short) var(--ease);
}

.page-news .news-item:hover {
  background: rgba(255, 122, 26, .07);
}

.page-news .news-item__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--signal-orange);
}

.page-news .news-item__tag {
  grid-area: tag;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--label-teal);
  white-space: nowrap;
}

.page-news .news-item__text {
  grid-area: text;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(246, 248, 247, .9);
}

/* ---------- 03 观点卡片（奶油底） ---------- */
.page-news .news-sec--cardboard {
  background: var(--cream);
  color: var(--ink-brown);
  border: var(--rule) solid var(--ink-brown);
  box-shadow: 10px 10px 0 rgba(255, 122, 26, .5);
  padding: 26px 20px 30px;
}

.page-news .news-sec--cardboard .news-sec__head {
  border-bottom-color: rgba(26, 20, 15, .28);
}

.page-news .news-sec--cardboard .news-sec__title {
  color: var(--ink-brown);
}

.page-news .news-sec--cardboard .news-sec__sub {
  color: rgba(26, 20, 15, .72);
}

.page-news .news-cards {
  display: flex;
  flex-direction: column;
}

.page-news .news-card {
  border-top: 3px solid var(--ink-brown);
  padding: 16px 0 10px;
}

.page-news .news-card:first-child {
  border-top-width: 4px;
}

.page-news .news-card__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "tag toggle"
    "title toggle"
    "cite toggle";
  column-gap: 16px;
  row-gap: 7px;
  align-items: start;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-card__tag {
  grid-area: tag;
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(26, 20, 15, .62);
}

.page-news .news-card__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.38;
  color: var(--ink-brown);
}

.page-news .news-card__cite {
  grid-area: cite;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(26, 20, 15, .74);
}

.page-news .news-card__cite::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--signal-orange);
}

.page-news .news-card__toggle {
  grid-area: toggle;
  align-self: center;
  position: relative;
  width: 26px;
  height: 26px;
  border: 2px solid var(--ink-brown);
}

.page-news .news-card__toggle::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 11px;
  height: 2px;
  background: var(--ink-brown);
  transform: translate(-50%, -50%);
}

.page-news .news-card__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 11px;
  background: var(--ink-brown);
  transform: translate(-50%, -50%);
  transition: transform var(--dur-short) var(--ease);
}

.page-news .news-card[open] .news-card__toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-news .news-card__body {
  max-width: 38em;
  padding: 14px 0 6px;
}

.page-news .news-card__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(26, 20, 15, .86);
}

/* ---------- 04 作者 ---------- */
.page-news .news-authors {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

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

.page-news .news-author {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 3px solid rgba(147, 168, 166, .16);
}

.page-news .news-author:first-child {
  border-top: 3px solid rgba(147, 168, 166, .16);
}

.page-news .news-author__key {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 18px;
  color: var(--board-white);
}

.page-news .news-author__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(246, 248, 247, .74);
}

.page-news .news-editflow {
  padding: 22px 20px 20px;
  background: var(--arena-green);
  border-left: var(--rule) solid var(--signal-orange);
}

.page-news .news-editflow__title {
  margin: 0 0 16px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  color: var(--board-white);
}

.page-news .news-editflow__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: editflow;
}

.page-news .news-editflow__list li {
  counter-increment: editflow;
  position: relative;
  padding: 0 0 12px 32px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(246, 248, 247, .76);
}

.page-news .news-editflow__list li::before {
  content: counter(editflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--electric-teal);
}

.page-news .news-authors__more {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--label-teal);
}

.page-news .news-authors__more a {
  color: var(--electric-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-authors__more a:hover {
  color: var(--signal-orange);
}

/* ---------- 05 查找 ---------- */
.page-news .news-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .news-search__item {
  min-width: 0;
  padding: 18px 18px 20px;
  border-top: 3px solid var(--signal-orange);
  background: rgba(16, 38, 31, .55);
}

.page-news .news-search__key {
  margin: 0 0 10px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 19px;
  color: var(--board-white);
}

.page-news .news-search__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(246, 248, 247, .74);
}

.page-news .news-search__tip {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--label-teal);
}

.page-news .news-search__tip a {
  color: var(--electric-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-search__tip a:hover {
  color: var(--signal-orange);
}

/* ---------- 06 投稿 ---------- */
.page-news .news-sec--submit {
  border-top: var(--rule) solid var(--signal-orange);
  padding-top: 28px;
}

.page-news .news-submit {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: end;
}

.page-news .news-submit__title {
  margin: 0 0 12px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--board-white);
}

.page-news .news-submit__text {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 248, 247, .76);
}

.page-news .news-submit__text:last-of-type {
  margin-bottom: 0;
}

.page-news .news-submit__btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }

  .page-news .news-item {
    grid-template-columns: 54px 118px minmax(0, 1fr);
    grid-template-areas: "no tag text";
    align-items: baseline;
    column-gap: 18px;
    row-gap: 0;
  }

  .page-news .news-search {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-submit {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }

  .page-news .news-sec--cardboard {
    padding: 30px 30px 34px;
  }
}

@media (min-width: 900px) {
  .page-news .news-authors {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 44px;
  }

  .page-news .news-author {
    grid-template-columns: 76px minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-news .news-shell {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 54px;
    margin-block: 56px 96px;
  }

  .page-news .news-rail {
    position: sticky;
    top: 28px;
    align-self: start;
    padding-left: 18px;
    border-left: var(--rule) solid var(--signal-orange);
  }

  .page-news .news-rail__nav {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-news .news-rail__link {
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(147, 168, 166, .18);
  }

  .page-news .news-rail__link[data-active="true"] {
    background: transparent;
    border-bottom-color: var(--signal-orange);
  }
}

@media (min-width: 1180px) {
  .page-news .news-search {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-rail__link,
  .page-news .news-item,
  .page-news .news-card__toggle::after {
    transition: none;
  }
}