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

/* ---------- 面包屑 ---------- */
.page-news .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}
.page-news .breadcrumbs a {
  color: var(--warm);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-news .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan-line);
}
.page-news .breadcrumbs [aria-current="page"] {
  color: var(--ember);
}

/* ---------- 首屏 ---------- */
.page-news .news-intro {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(32px, 5vw, 64px);
}
.page-news .news-intro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}
.page-news .news-intro__main h1 {
  margin: 12px 0 20px;
  font-size: clamp(34px, 8vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}
.page-news .news-intro__lede {
  max-width: 60ch;
  color: var(--warm);
  font-size: 16px;
  line-height: 1.8;
}
.page-news .news-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-board {
  position: relative;
  padding: 22px 20px;
  background: linear-gradient(150deg, var(--ink-green), var(--night) 70%);
  border-left: 3px solid var(--ember);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}
.page-news .news-board::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 14px, rgba(61, 245, 208, 0.04) 14px 15px);
  pointer-events: none;
}
.page-news .news-board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}
.page-news .news-board__row:last-of-type {
  border-bottom: 0;
}
.page-news .news-board__key {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--steel);
}
.page-news .news-board__val {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: -0.01em;
}
.page-news .news-board__unit {
  font-size: 12px;
  margin-left: 3px;
  color: var(--steel);
  font-weight: 500;
}
.page-news .news-board__note {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

/* ---------- 更新流 ---------- */
.page-news .news-feed-section {
  background: var(--ink-green);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-news .news-feed__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.page-news .news-feed__head h2 {
  margin: 10px 0 0;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--white);
}
.page-news .news-feed__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
  max-width: 44ch;
}
.page-news .news-feed__figure {
  margin: 0 0 28px;
}
.page-news .news-feed__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-news .news-filter__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 10px;
}
.page-news .news-filter__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .news-chip {
  appearance: none;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--warm);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 13px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-news .news-chip:hover {
  color: var(--white);
  border-color: var(--ember);
}
.page-news .news-chip.is-active {
  background: var(--ember);
  border-color: var(--ember);
  color: var(--night);
  font-weight: 700;
}
.page-news .news-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .news-feed {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-news .news-item {
  position: relative;
  padding: 18px 0 18px 16px;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 3px;
  height: 0;
  background: var(--ember);
  transition: height 0.22s var(--ease);
}
.page-news .news-item:hover {
  background: linear-gradient(90deg, var(--ember-ghost), transparent 70%);
  padding-left: 20px;
}
.page-news .news-item:hover::before {
  height: 26px;
}
.page-news .news-item[hidden] {
  display: none;
}
.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.page-news .news-item__time {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.6vw, 21px);
  line-height: 1.4;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-news .news-item__title a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-news .news-item__title a:hover {
  color: var(--ember);
  border-bottom-color: var(--ember);
}
.page-news .news-item__sum {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--warm);
  max-width: 66ch;
}
.page-news .news-item__more {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--steel);
  opacity: 0;
  max-height: 0;
  transition: opacity 0.2s var(--ease), max-height 0.2s var(--ease);
  overflow: hidden;
}
.page-news .news-item:hover .news-item__more,
.page-news .news-item:focus-within .news-item__more {
  opacity: 1;
  max-height: 40px;
}
.page-news .news-feed__foot {
  margin-top: 22px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel);
  max-width: 60ch;
}

/* ---------- 栏目索引 ---------- */
.page-news .news-columns__head {
  margin-bottom: 28px;
}
.page-news .news-columns__head h2 {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.12;
  color: var(--white);
}
.page-news .news-columns__lede {
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
}
.page-news .news-columns__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
.page-news .news-columns__visual {
  display: grid;
  gap: 16px;
}
.page-news .news-columns__visual .media-frame {
  margin: 0;
}
.page-news .news-columns__visual-wide {
  display: none;
}
.page-news .news-columns__item-head {
  margin: 0;
}
.page-news .news-columns__item-head .acc-trigger {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 12px;
  width: 100%;
  text-align: left;
  cursor: pointer;
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 16px 30px 16px 0;
  position: relative;
  font-family: var(--font-sans);
  color: var(--white);
}
.page-news .news-columns__item-head .acc-trigger::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--ember);
  transition: transform 0.22s var(--ease);
}
.page-news .news-columns__item-head .acc-trigger[aria-expanded="true"]::after {
  transform: rotate(45deg);
}
.page-news .news-columns__item-head .acc-trigger:hover .news-columns__name {
  color: var(--ember);
}
.page-news .news-columns__num {
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 0.08em;
}
.page-news .news-columns__name {
  font-size: clamp(18px, 2.8vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  transition: color 0.18s var(--ease);
}
.page-news .news-columns__short {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}
.page-news .news-columns__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
}

/* ---------- 团队 ---------- */
.page-news .news-team {
  background: linear-gradient(180deg, var(--ink-green), var(--night));
  border-top: 1px solid var(--line);
}
.page-news .news-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}
.page-news .news-team__copy h2 {
  margin: 10px 0 18px;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.14;
  color: var(--white);
}
.page-news .news-team__copy p {
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  margin: 0 0 14px;
}
.page-news .news-team__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}
.page-news .news-team__list li {
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--pitch);
}
.page-news .news-team__k {
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: -0.02em;
}
.page-news .news-team__unit {
  font-size: 12px;
  color: var(--steel);
  margin-left: 2px;
}
.page-news .news-team__v {
  font-size: 13px;
  line-height: 1.6;
  color: var(--warm);
}
.page-news .news-team__panel {
  padding: 22px 20px;
  background: var(--pitch);
  border-left: 3px solid var(--cyan);
}
.page-news .news-team__panel-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 16px;
}
.page-news .news-team__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-news .news-team__steps li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--warm);
  position: relative;
}
.page-news .news-team__steps .num {
  color: var(--ember);
  font-size: 13px;
  padding-top: 2px;
}
.page-news .news-team__steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 26px;
  bottom: -10px;
  width: 1px;
  background: var(--line);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm__head {
  margin-bottom: 26px;
}
.page-news .news-rhythm__head h2 {
  margin: 10px 0 0;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.12;
  color: var(--white);
}
.page-news .news-rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-news .news-rhythm__timeline {
  display: grid;
  gap: 0;
  border-left: 1px solid var(--line);
  padding-left: 20px;
}
.page-news .news-rhythm__node {
  position: relative;
  padding: 0 0 26px;
}
.page-news .news-rhythm__node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--night);
  border: 2px solid var(--ember);
  transform: rotate(45deg);
}
.page-news .news-rhythm__node--last::before {
  background: var(--ember);
}
.page-news .news-rhythm__t {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  margin-bottom: 6px;
}
.page-news .news-rhythm__node h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.8vw, 23px);
  font-weight: 800;
  color: var(--white);
}
.page-news .news-rhythm__node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--warm);
  max-width: 54ch;
}
.page-news .news-rhythm__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}
.page-news .news-rhythm__aside .media-frame {
  margin: 0;
}
.page-news .news-rhythm__sources {
  background: var(--pitch);
  padding: 18px 18px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}
.page-news .news-rhythm__sources-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 14px;
}
.page-news .news-rhythm__sources ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-news .news-rhythm__sources li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

/* ---------- 订阅 ---------- */
.page-news .news-subscribe {
  background: linear-gradient(160deg, var(--ink-green), var(--night) 65%);
  border-top: 1px solid var(--line);
}
.page-news .news-subscribe__panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: clamp(22px, 3.6vw, 40px);
  background: var(--night);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}
.page-news .news-subscribe__panel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--ember), var(--ash));
}
.page-news .news-subscribe__copy h2 {
  margin: 10px 0 16px;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.14;
  color: var(--white);
}
.page-news .news-subscribe__copy p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  margin: 0 0 12px;
  max-width: 58ch;
}
.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.page-news .news-subscribe__teams {
  background: var(--ink-green);
  padding: 18px;
  border-top: 2px solid var(--cyan-line);
}
.page-news .news-subscribe__teams-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 12px;
}
.page-news .news-subscribe__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.page-news .news-team-chip {
  appearance: none;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--warm);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 12px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-news .news-team-chip.is-active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(61, 245, 208, 0.08);
}
.page-news .news-team-chip:hover {
  border-color: var(--ember);
  color: var(--white);
}
.page-news .news-team-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .news-subscribe__preview-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--warm);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line-soft);
}
.page-news .news-subscribe__preview-line:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}
.page-news .news-subscribe__preview-line .num {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 投稿 ---------- */
.page-news .news-submit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}
.page-news .news-submit__main h2 {
  margin: 10px 0 16px;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.14;
  color: var(--white);
}
.page-news .news-submit__main p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  margin: 0 0 14px;
  max-width: 60ch;
}
.page-news .news-submit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.page-news .news-submit__side-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 12px;
}
.page-news .news-submit__qa .acc-trigger {
  width: 100%;
  text-align: left;
  cursor: pointer;
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  padding: 14px 30px 14px 0;
  position: relative;
}
.page-news .news-submit__qa .acc-trigger::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--ember);
  transition: transform 0.22s var(--ease);
}
.page-news .news-submit__qa .acc-trigger[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

/* ---------- 媒体框架微调 ---------- */
.page-news .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 移动端以上 ---------- */
@media (min-width: 720px) {
  .page-news .news-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(260px, 5fr);
    align-items: start;
  }
  .page-news .news-feed__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
  .page-news .news-feed__hint {
    text-align: right;
  }
  .page-news .news-feed__layout {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 28px;
  }
  .page-news .news-filter {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
  }
  .page-news .news-filter__chips {
    flex-direction: column;
    align-items: stretch;
  }
  .page-news .news-chip {
    text-align: left;
  }
  .page-news .news-columns__split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    align-items: start;
  }
  .page-news .news-columns__visual-wide {
    display: block;
  }
  .page-news .news-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-news .news-rhythm__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
  }
  .page-news .news-subscribe__panel {
    grid-template-columns: minmax(0, 7fr) minmax(260px, 5fr);
    align-items: start;
    gap: 32px;
  }
  .page-news .news-submit__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-news .news-intro__grid {
    grid-template-columns: minmax(0, 8fr) minmax(280px, 4fr);
  }
  .page-news .news-feed__layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 36px;
  }
  .page-news .news-columns__split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
  }
  .page-news .news-board {
    padding: 26px 24px;
  }
  .page-news .news-item {
    padding-top: 20px;
    padding-bottom: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item::before,
  .page-news .news-item__more,
  .page-news .news-columns__item-head .acc-trigger::after,
  .page-news .news-submit__qa .acc-trigger::after {
    transition: none;
  }
  .page-news .news-item__more {
    opacity: 1;
    max-height: none;
  }
}
</main>