.page-news {
  --rail-w: 236px;
  --note-space: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
  padding-block: clamp(22px, 5vw, 40px) clamp(44px, 7vw, 84px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(133deg,
      transparent 0 46%,
      rgba(61, 224, 210, .09) 46% 56%,
      rgba(255, 106, 43, .14) 56% 64%,
      transparent 64% 100%);
}

.page-news .news-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-news .news-hero .breadcrumbs {
  color: var(--cream-62);
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-news .news-hero .breadcrumbs a {
  color: var(--cream-78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) ease, color var(--dur) ease;
}

.page-news .news-hero .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .news-hero .kicker,
.page-news .news-hero .label {
  color: var(--orange);
}

.page-news .news-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 7.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: .28em 0 .5em;
  max-width: 15em;
}

.page-news .news-hero .lead {
  max-width: 34em;
  color: var(--cream-78);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.5vw, 32px);
}

.page-news .news-hero__slip {
  background: rgba(245, 240, 230, .07);
  border: 1px solid var(--line-dark);
  border-left: 2px solid var(--cyan);
  padding: 18px 20px 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-news .news-hero__slip-title {
  margin: 0;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal-gray);
}

.page-news .pulse {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
}

.page-news .pulse__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(154, 183, 176, .2);
}

.page-news .pulse__row--last {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .pulse dt {
  font-size: 13px;
  color: var(--cream-62);
}

.page-news .pulse dd {
  margin: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--cyan);
}

.page-news .pulse dd .num {
  font-size: 19px;
  font-weight: 700;
}

/* ---------- 两栏主体 ---------- */
.page-news .news-body {
  display: grid;
  gap: clamp(30px, 5vw, 40px);
  padding-block: clamp(36px, 6vw, 76px);
}

.page-news .news-rail__nav {
  border-top: 2px solid var(--brown);
  padding-top: 12px;
}

.page-news .news-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal-gray);
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-news .news-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  color: var(--brown);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .news-rail__list a .num {
  font-size: 11px;
  color: var(--teal-gray);
}

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

.page-news .news-rail__list a[aria-current="true"],
.page-news .news-rail__list a.is-active {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 章节骨架 ---------- */
.page-news .news-section {
  padding-bottom: clamp(40px, 6vw, 72px);
  margin-bottom: clamp(34px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-section--last {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 8px;
}

.page-news .news-section .section-head {
  margin-bottom: clamp(22px, 3.5vw, 34px);
}

.page-news .news-section h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--brown);
  margin: .2em 0 .5em;
}

.page-news .news-section .lead {
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(33, 26, 23, .78);
}

/* ---------- 分类卡 ---------- */
.page-news .tax-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-news .tax-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--ink);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-card);
  transition: border-top-color var(--dur) ease, transform var(--dur) ease;
}

.page-news .tax-card:hover {
  border-top-color: var(--orange);
  transform: translateY(-2px);
}

.page-news .tax-card__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--teal-gray);
}

.page-news .tax-card__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--brown);
  margin: 6px 0 8px;
}

.page-news .tax-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(33, 26, 23, .74);
}

.page-news .tax-card__link {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

/* ---------- 图片容器 ---------- */
.page-news .shot {
  position: relative;
  overflow: hidden;
  background: var(--teal-deep);
  aspect-ratio: 3 / 2;
}

.page-news .shot--square {
  aspect-ratio: 1 / 1;
}

.page-news .shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-news .shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 58%, rgba(61, 224, 210, .16) 58% 66%, transparent 66%);
  pointer-events: none;
}

/* ---------- 首条笔记 ---------- */
.page-news .note-lead {
  display: grid;
  gap: 18px;
  padding-bottom: clamp(24px, 3vw, 32px);
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.page-news .note-lead__body h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.32;
  margin: 8px 0 10px;
}

.page-news .note-lead__body h3 a {
  color: var(--brown);
  text-decoration: none;
  transition: color var(--dur) ease;
}

.page-news .note-lead__body h3 a:hover {
  color: var(--orange);
}

.page-news .note-lead__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(33, 26, 23, .78);
}

.page-news .note-lead__tail {
  font-family: var(--font-label);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--teal-gray);
}

/* ---------- 笔记列表 ---------- */
.page-news .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .note-list--cont {
  margin-top: 4px;
}

.page-news .note-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .note-num {
  font-size: 12px;
  color: var(--teal-gray);
  padding-top: 4px;
}

.page-news .note-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0 0 6px;
}

.page-news .note-meta__time {
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--teal-gray);
}

.page-news .type {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: .12em;
  line-height: 1;
  padding: 5px 7px 4px;
  border: 1px solid currentColor;
}

.page-news .type--review { color: var(--orange); }
.page-news .type--series { color: var(--teal-deep); }
.page-news .type--method { color: #1C7A70; }
.page-news .type--release { color: #A97B12; }

.page-news .note-item__body h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.42;
  margin: 0 0 7px;
}

.page-news .note-item__body h3 a {
  color: var(--brown);
  text-decoration: none;
  transition: color var(--dur) ease;
}

.page-news .note-item__body h3 a:hover {
  color: var(--orange);
}

.page-news .note-item__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(33, 26, 23, .74);
}

/* ---------- 留白停顿块 ---------- */
.page-news .pause {
  margin: clamp(26px, 4vw, 42px) 0;
  padding: clamp(26px, 4vw, 40px) clamp(20px, 3vw, 32px);
  background: var(--ink);
  color: var(--cream);
  border-left: 3px solid var(--cyan);
}

.page-news .pause__quote {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.4;
  max-width: 22em;
}

.page-news .spark {
  width: 160px;
  height: 48px;
  color: var(--cyan);
  display: block;
}

.page-news .pause__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  color: var(--cream-62);
}

/* ---------- 时间线 ---------- */
.page-news .shot--flush {
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line);
}

.page-news .timeline li {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 32px);
}

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

.page-news .timeline li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 7px;
  width: 9px;
  height: 9px;
  background: var(--orange);
}

.page-news .timeline__label {
  margin: 0 0 6px;
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--teal-gray);
}

.page-news .timeline__label .num {
  color: var(--brown);
  font-weight: 700;
  margin-right: 4px;
}

.page-news .timeline h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(16.5px, 2vw, 19px);
  line-height: 1.45;
  color: var(--brown);
  margin: 0 0 6px;
}

.page-news .timeline p:not(.timeline__label) {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(33, 26, 23, .74);
  max-width: 42em;
}

/* ---------- 数据方法 ---------- */
.page-news .method-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-news .method-card {
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .method-card:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .method-card h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(16.5px, 2vw, 19px);
  color: var(--brown);
  margin: 0 0 8px;
}

.page-news .method-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(33, 26, 23, .76);
}

.page-news .method-foot {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--teal-gray);
}

.page-news .method-foot a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 版本手记 ---------- */
.page-news .release {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

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

.page-news .release__list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .release__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .release__ver {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-news .release__list h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 18.5px);
  color: var(--brown);
  margin: 0 0 6px;
}

.page-news .release__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(33, 26, 23, .74);
}

.page-news .release__cta {
  margin-top: 22px;
  display: inline-block;
}

/* ---------- 共建 ---------- */
.page-news .collab {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(22px, 3.5vw, 34px);
  background: var(--paper);
  border-left: 3px solid var(--orange);
}

.page-news .collab__copy p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(33, 26, 23, .8);
}

.page-news .collab__copy p:last-child {
  margin-bottom: 0;
}

.page-news .collab__links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-news .collab__link {
  font-size: 14px;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .collab__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 返回顶部 ---------- */
.page-news .to-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 40;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--dur) ease, transform var(--dur) ease, visibility var(--dur) ease;
}

.page-news .to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-news .to-top:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .tax-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .note-lead {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
    gap: 26px;
  }

  .page-news .release {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    align-items: start;
  }

  .page-news .collab {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1fr) 286px;
    align-items: end;
  }

  .page-news .news-body {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-news .news-rail__nav {
    position: sticky;
    top: 84px;
  }

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

  .page-news .news-rail__list a {
    width: 100%;
    padding: 7px 0;
  }

  .page-news .method-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-news .method-card h3 {
    margin-top: 0;
  }

  .page-news .note-item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 16px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-flow {
    padding-right: clamp(0px, 3vw, 48px);
  }

  .page-news .note-lead__body p {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tax-card,
  .page-news .to-top,
  .page-news .news-rail__list a,
  .page-news .note-item__body h3 a {
    transition: none;
  }

  .page-news .tax-card:hover {
    transform: none;
  }
}