.page-news {
  --news-aside-w: 230px;
  --news-gap: 52px;
  background: var(--paper);
  color: var(--ink);
}

/* ============ 页面首屏 ============ */
.page-news .news-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding: calc(var(--header-h) + 44px) 0 56px;
}

.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(118deg, rgba(15, 20, 22, 0) 0 60%, rgba(196, 83, 43, 0.94) 60% 100%);
}

.page-news .news-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(244, 241, 236, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 241, 236, 0.06) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, rgba(0, 0, 0, 0.1) 72%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, rgba(0, 0, 0, 0.1) 72%, transparent 100%);
}

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

.page-news .news-hero__inner {
  max-width: 760px;
}

.page-news .breadcrumb {
  margin-bottom: 30px;
  font-size: 13px;
}

.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--stone-soft);
}

.page-news .breadcrumb a {
  color: rgba(244, 241, 236, 0.72);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  color: var(--lime);
}

.page-news .breadcrumb li[aria-current="page"] {
  color: var(--lime);
}

.page-news .news-kicker {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lime);
  border: 1px solid rgba(185, 242, 39, 0.4);
  padding: 4px 10px;
  margin: 0 0 22px;
}

.page-news .news-hero h1 {
  margin: 0 0 22px;
  font-size: clamp(30px, 7vw, 60px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-news .news-lead {
  margin: 0 0 34px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 241, 236, 0.78);
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: baseline;
  padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
  color: rgba(244, 241, 236, 0.66);
}

.page-news .news-hero__facts .mono {
  font-size: 20px;
  font-weight: 700;
  color: var(--paper);
  margin-right: 2px;
}

.page-news .news-banner {
  margin: 0;
  line-height: 0;
  background: var(--graphite);
  border-bottom: 3px solid var(--terra);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 520;
  object-fit: cover;
  opacity: 0.9;
}

/* ============ 通用章节头 ============ */
.page-news .news-sec-head {
  margin-bottom: 34px;
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-news .news-sec-head .ann {
  display: block;
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--terra);
}

.page-news .news-sec-head h2 {
  margin: 0;
  font-size: clamp(24px, 4.6vw, 40px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-news .news-sec-sub {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

/* ============ 先看这三条 ============ */
.page-news .news-spot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .spot-card {
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 190px;
}

.page-news .spot-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-news .spot-card h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-news .spot-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

.page-news .spot-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--terra);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-news .spot-card__link:hover {
  color: var(--terra-deep);
}

.page-news .spot-card--ink {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-news .spot-card--ink h3 {
  color: var(--paper);
}

.page-news .spot-card--ink p {
  color: rgba(244, 241, 236, 0.72);
}

.page-news .spot-card--ink .spot-card__label,
.page-news .spot-card--ink .spot-card__link {
  color: var(--lime);
}

.page-news .spot-card--terra {
  background: var(--terra);
  border-color: var(--terra);
  color: var(--paper);
}

.page-news .spot-card--terra h3 {
  color: var(--paper);
}

.page-news .spot-card--terra p {
  color: rgba(244, 241, 236, 0.86);
}

.page-news .spot-card--terra .spot-card__label,
.page-news .spot-card--terra .spot-card__link {
  color: rgba(244, 241, 236, 0.9);
}

.page-news .spot-card--paper {
  background: var(--paper);
  border-color: var(--ink);
  border-left-width: 4px;
}

/* ============ 笔记列表：侧栏 + 主列表 ============ */
.page-news .news-index__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-news .news-aside {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-news .news-aside__block {
  border-top: 1px solid var(--ink);
  padding-top: 14px;
}

.page-news .news-aside__title {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-news .news-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .news-tags li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .news-tags__num {
  font-size: 13px;
  color: var(--stone);
}

.page-news .note-tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 3px 9px;
  border: 1px solid currentColor;
  color: var(--stone);
  white-space: nowrap;
}

.page-news .note-tag--observe { color: var(--terra); }
.page-news .note-tag--method { color: var(--lake); }
.page-news .note-tag--release { color: var(--violet); }
.page-news .note-tag--league { color: var(--terra-deep); }

.page-news .news-hot {
  list-style: none;
  counter-reset: hot;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .news-hot li {
  counter-increment: hot;
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.page-news .news-hot li::before {
  content: counter(hot, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--terra);
  flex: none;
  padding-top: 2px;
}

.page-news .news-hot a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-news .news-hot a:hover {
  border-bottom-color: var(--terra);
}

.page-news .news-aside__block--link p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-news .news-aside__block--link .btn {
  font-size: 13px;
}

/* 列表条目 */
.page-news .news-rows {
  border-top: 1px solid var(--ink);
}

.page-news .note-row {
  position: relative;
  padding: 22px 0 22px 16px;
  border-bottom: 1px solid var(--line);
  transition: padding-left var(--dur-fast) var(--ease);
}

.page-news .note-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 0;
  background: var(--terra);
  transition: width var(--dur-fast) var(--ease);
}

.page-news .note-row:hover {
  padding-left: 28px;
}

.page-news .note-row:hover::before {
  width: 4px;
}

.page-news .note-row__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.page-news .note-row__time {
  font-size: 12px;
  color: var(--stone);
  letter-spacing: 0.02em;
  text-align: right;
  flex: none;
}

.page-news .note-row__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.6vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-news .note-row__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
  max-width: 52ch;
}

/* ============ 专题系列 ============ */
.page-news .news-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.page-news .series-card {
  background: var(--graphite);
  color: var(--paper);
  border-top: 4px solid var(--terra);
  padding: 0 0 26px;
  display: flex;
  flex-direction: column;
}

.page-news .series-card__figure {
  margin: 0 0 20px;
  line-height: 0;
  background: var(--ink);
}

.page-news .series-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.88;
}

.page-news .series-card__label,
.page-news .series-card h3,
.page-news .series-card__desc,
.page-news .series-card__meta {
  margin-left: 22px;
  margin-right: 22px;
}

.page-news .series-card__label {
  margin-top: 22px;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-news .series-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-news .series-card__desc {
  margin-top: 0;
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 241, 236, 0.74);
}

.page-news .series-card__meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  margin-top: auto;
  margin-bottom: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
}

.page-news .series-card__meta dt {
  color: var(--stone-soft);
  white-space: nowrap;
}

.page-news .series-card__meta dd {
  margin: 0;
  color: rgba(244, 241, 236, 0.86);
}

.page-news .series-card--observe {
  border-top-color: var(--terra);
}

.page-news .series-card--method {
  border-top-color: var(--lake);
}

.page-news .series-card--method .series-card__label {
  color: var(--lake);
}

.page-news .series-card--league {
  border-top-color: var(--lime);
}

/* ============ 版本迭代记录 ============ */
.page-news .news-timeline__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-news .news-timeline__figure {
  margin: 0;
  line-height: 0;
  background: var(--ink);
  border-left: 4px solid var(--terra);
}

.page-news .news-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

.page-news .news-timeline__list {
  border-top: 1px solid var(--ink);
}

.page-news .tl-item {
  border-bottom: 1px solid var(--line);
}

.page-news .tl-summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.page-news .tl-year {
  flex: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--terra);
  letter-spacing: 0.04em;
  min-width: 52px;
}

.page-news .tl-title {
  flex: 1;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .tl-mark {
  flex: none;
  position: relative;
  width: 14px;
  height: 14px;
  align-self: center;
}

.page-news .tl-mark::before,
.page-news .tl-mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform var(--dur-mid) var(--ease);
}

.page-news .tl-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-news .tl-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-news .tl-item[open] .tl-mark::after {
  transform: scaleY(0);
}

.page-news .tl-item[open] .tl-summary {
  color: var(--terra-deep);
}

.page-news .tl-body {
  padding: 0 2px 22px;
}

.page-news .tl-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
  max-width: 52ch;
}

.page-news .tl-note {
  display: inline-block;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lake);
  border-left: 2px solid var(--lake);
  padding-left: 10px;
}

/* ============ 纠错与选题 ============ */
.page-news .news-submit__box {
  border: 1px solid var(--ink);
  border-left: 8px solid var(--terra);
  background: var(--paper);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-news .news-submit__text .ann {
  display: block;
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--terra);
}

.page-news .news-submit__text h2 {
  margin: 0 0 16px;
  font-size: clamp(22px, 4.2vw, 34px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-news .news-submit__text p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-news .news-submit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ 平板及以上 ============ */
@media (min-width: 720px) {
  .page-news .news-spot__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-news .spot-card:nth-child(2) {
    margin-top: 38px;
  }

  .page-news .spot-card:nth-child(3) {
    margin-top: 76px;
  }

  .page-news .news-submit__box {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 40px 36px;
  }

  .page-news .news-submit__actions {
    flex: none;
    flex-direction: column;
    align-items: stretch;
  }
}

/* ============ 桌面端 ============ */
@media (min-width: 1000px) {
  .page-news .news-hero {
    padding: calc(var(--header-h) + 64px) 0 72px;
  }

  .page-news .news-index__layout {
    grid-template-columns: var(--news-aside-w) 1fr;
    gap: var(--news-gap);
  }

  .page-news .news-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news .note-row {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 32px;
    align-items: start;
    padding: 26px 0 26px 20px;
  }

  .page-news .note-row:hover {
    padding-left: 34px;
  }

  .page-news .note-row__meta {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }

  .page-news .note-row__title {
    grid-column: 1;
    margin-bottom: 10px;
  }

  .page-news .note-row__desc {
    grid-column: 1;
  }

  .page-news .news-series__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
  }

  .page-news .series-card:nth-child(2) {
    margin-top: 46px;
  }

  .page-news .series-card:nth-child(3) {
    margin-top: 92px;
  }

  .page-news .news-timeline__layout {
    grid-template-columns: 360px 1fr;
    gap: 56px;
  }

  .page-news .news-timeline__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news .tl-summary {
    padding: 24px 2px;
  }

  .page-news .tl-title {
    font-size: 18px;
  }
}

/* ============ 窄屏兜底 ============ */
@media (max-width: 480px) {
  .page-news .news-hero__bg {
    background: linear-gradient(168deg, rgba(15, 20, 22, 0) 0 58%, rgba(196, 83, 43, 0.92) 58% 100%);
  }

  .page-news .news-hero h1 {
    font-size: 28px;
  }

  .page-news .news-hero__facts {
    font-size: 12px;
    gap: 8px 16px;
  }

  .page-news .note-row__meta {
    flex-wrap: wrap;
  }

  .page-news .news-submit__box {
    padding: 24px 18px;
  }
}