.page-news {
  --news-clay: #93361C;
  --news-dim: rgba(183, 240, 74, .42);
}

/* ---------- 封面 ---------- */
.page-news .news-cover {
  position: relative;
  padding: clamp(26px, 5vw, 60px) 0 0;
  overflow: hidden;
  border-bottom: var(--rule);
  background:
    radial-gradient(120% 96% at 10% 0%, rgba(30, 58, 99, .78) 0%, rgba(12, 24, 48, 0) 62%),
    radial-gradient(84% 72% at 88% 18%, rgba(183, 240, 74, .10) 0%, rgba(12, 24, 48, 0) 58%),
    var(--ink-950);
}

.page-news .news-cover__inner {
  padding-bottom: clamp(24px, 4vw, 46px);
}

.page-news .news-cover__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 7.6vw, 84px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--mist);
  max-width: 13em;
}

.page-news .news-cover__lead {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 34em;
}

.page-news .news-cover__facts {
  list-style: none;
  margin: clamp(24px, 4vw, 44px) 0 0;
  padding: 16px 0 0;
  border-top: var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  color: var(--ink-400);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-news .news-cover__band {
  height: 2px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--coral) 46%, rgba(12, 24, 48, 0) 100%);
  opacity: .85;
}

/* ---------- 栏格 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.6vw, 26px);
  padding-block: clamp(18px, 3vw, 40px) clamp(48px, 7vw, 96px);
}

.page-news .news-rail {
  position: sticky;
  top: calc(var(--nav-h) + 12px);
  z-index: 7;
  align-self: start;
  background: var(--ink-950);
}

.page-news .news-rail__list {
  display: flex;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0 0 10px;
  overflow-x: auto;
  border-bottom: var(--rule);
}

.page-news .news-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
  padding: 5px 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-400);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link.is-active {
  color: var(--lime);
}

.page-news .news-stream {
  min-width: 0;
}

/* ---------- 筛选条 ---------- */
.page-news .news-filter-section {
  position: sticky;
  top: var(--nav-h);
  z-index: 6;
  padding: 12px 0 14px;
  border-bottom: var(--rule);
  background: var(--ink-950);
}

.page-news .news-filter__label {
  margin: 0 0 10px;
}

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

.page-news .news-filter__bar .filter-bar__btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 7px 12px;
  border: 1px solid var(--ink-700);
  border-radius: 0;
  background: transparent;
  color: var(--ink-400);
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-news .news-filter__bar .filter-bar__btn:hover {
  color: var(--mist);
  border-color: var(--ink-400);
}

.page-news .news-filter__bar .filter-bar__btn[aria-pressed="true"] {
  color: var(--ink-950);
  background: var(--lime);
  border-color: var(--lime);
}

/* ---------- 区块骨架 ---------- */
.page-news .news-block {
  padding-block: clamp(26px, 4vw, 52px) clamp(10px, 2vw, 22px);
  border-top: var(--rule);
}

.page-news .news-block__head {
  max-width: 46em;
}

.page-news .news-block__head .u-28 {
  margin: 10px 0 0;
}

.page-news .news-block__head .lead {
  margin: 14px 0 0;
}

/* ---------- 图片容器 ---------- */
.page-news .news-media {
  margin: clamp(18px, 3vw, 32px) 0 0;
}

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

.page-news .news-media--cycle {
  max-width: 900px;
}

.page-news .news-media--howto {
  margin-top: clamp(20px, 3vw, 34px);
}

/* ---------- 本周条目 ---------- */
.page-news .news-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-bottom: var(--rule-soft);
}

.page-news .note-row {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 6px 14px;
  padding: 16px 0 16px 12px;
  border-top: var(--rule-soft);
}

.page-news .note-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t) var(--ease);
}

.page-news .note-row:hover::before {
  transform: scaleY(1);
}

.page-news .note-row__num {
  margin: 2px 0 0;
  font-size: 13px;
  letter-spacing: .1em;
}

.page-news .note-row__body {
  min-width: 0;
}

.page-news .note-row__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-news .tag {
  display: inline-block;
  padding: 3px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  border: 1px solid var(--ink-700);
  color: var(--ink-400);
}

.page-news .tag--lime {
  color: var(--lime);
  border-color: var(--news-dim);
}

.page-news .tag--coral {
  color: var(--coral);
  border-color: rgba(255, 107, 74, .45);
}

.page-news .note-row__title {
  margin: 9px 0 0;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--mist);
}

.page-news .note-row__sum {
  margin: 6px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-400);
}

.page-news .note-row__more {
  margin-top: 10px;
}

.page-news .note-row__more summary {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--lime);
  border-bottom: 1px solid var(--news-dim);
  cursor: pointer;
  list-style: none;
}

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

.page-news .note-row__more p {
  margin: 10px 0 0;
  max-width: 36em;
  padding-left: 14px;
  border-left: 1px solid var(--ink-700);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-400);
}

.page-news .note-row__stamp {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-news .note-row__time {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-400);
  transition: color var(--t) var(--ease);
}

.page-news .note-row__jump {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-400);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-700);
  white-space: nowrap;
  padding-bottom: 2px;
}

.page-news .note-row__jump:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 双周与季度 ---------- */
.page-news .news-cycle {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .news-cycle__panel {
  padding: clamp(18px, 2.6vw, 26px);
}

.page-news .news-cycle__stamp {
  margin: 0;
  font-size: 11px;
  letter-spacing: .08em;
}

.page-news .news-cycle__title {
  margin: 10px 0 0;
  color: var(--mist);
}

.page-news .mini {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-news .mini__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 12px 0;
  border-top: var(--rule-soft);
}

.page-news .mini__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .mini__meta {
  margin: 0;
  font-size: 11px;
  letter-spacing: .08em;
}

/* ---------- 编号归档 ---------- */
.page-news .news-archive__texture {
  opacity: .5;
}

.page-news .arc-seg {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: clamp(16px, 2.6vw, 26px) 0;
  border-top: var(--rule);
}

.page-news .arc-seg__num {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 54px);
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-news .arc-seg__body {
  min-width: 0;
}

.page-news .arc-seg__title {
  margin: 0;
  font-size: 17px;
  color: var(--mist);
}

.page-news .arc-seg__note {
  margin: 6px 0 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-400);
}

.page-news .arc-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-news .arc-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  align-items: baseline;
  padding: 10px 0;
  border-top: var(--rule-soft);
}

.page-news .arc-row__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--mist);
}

.page-news .arc-row__time {
  margin: 0;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-400);
  white-space: nowrap;
}

/* ---------- 笔记怎么用 ---------- */
.page-news .news-howto {
  padding-block: clamp(32px, 5vw, 64px);
}

.page-news .news-howto__title {
  margin: 10px 0 0;
  color: var(--ink-on-sand);
}

.page-news .news-howto__para {
  max-width: 44em;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-on-sand);
}

.page-news .news-howto__links {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  border-top: 1px solid var(--sand-edge);
}

.page-news .news-howto__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-on-sand);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--sand-edge);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-news .news-howto__link:hover {
  color: var(--news-clay);
  border-bottom-color: var(--news-clay);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 599px) {
  .page-news .note-row {
    padding-left: 10px;
  }

  .page-news .news-cover__facts {
    gap: 8px 18px;
    font-size: 11px;
  }

  .page-news .arc-seg {
    gap: 4px 12px;
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-news .note-row {
    grid-template-columns: 52px minmax(0, 1fr) 146px;
    padding-left: 14px;
  }

  .page-news .note-row__stamp {
    grid-column: 3;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    text-align: right;
  }

  .page-news .note-row:hover .note-row__time {
    color: var(--lime);
  }

  .page-news .mini__row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 6px 18px;
  }

  .page-news .mini__meta {
    text-align: right;
  }
}

@media (min-width: 980px) {
  .page-news .news-layout {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-news .news-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
    border-bottom: 0;
  }

  .page-news .news-rail__link {
    padding: 9px 0 9px 12px;
    border-left: 2px solid var(--ink-700);
    transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
  }

  .page-news .news-rail__link:hover {
    border-left-color: var(--ink-400);
  }

  .page-news .news-rail__link.is-active {
    border-left-color: var(--lime);
  }
}

@media (min-width: 1200px) {
  .page-news .news-layout {
    grid-template-columns: 148px minmax(0, 1fr);
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .note-row::before {
    transition: none;
    transform: none;
    opacity: 0;
  }

  .page-news .note-row:hover::before {
    opacity: .9;
  }

  .page-news [data-reveal] {
    opacity: 1;
    transform: none;
  }
}