.page-news {
  --news-cut: 22px;
  --news-rule: 1px solid var(--line-soft);
  --news-pad: 22px;
  background: var(--mother);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-news .shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-news .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: 96px;
}

.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--tide);
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--mist);
}

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

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

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  margin-top: 16px;
  padding: 34px 0 88px;
  background: var(--grad-tide);
  color: var(--mother);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 52px), 0 100%);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: 20px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(244, 241, 232, .22);
  border-radius: 50%;
  pointer-events: none;
}

.page-news .news-hero-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: 1fr;
}

.page-news .news-hero-copy .eyebrow {
  color: var(--celadon-light);
  margin: 0 0 12px;
}

.page-news .news-hero h1 {
  margin: 0 0 18px;
  font-size: 32px;
  line-height: 1.18;
  letter-spacing: .02em;
  font-weight: 900;
}

.page-news .news-hero .lede {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-deep);
  max-width: 46em;
}

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

.page-news .news-hero-tags .chip {
  backdrop-filter: blur(2px);
}

/* 最近一期摘要块 */
.page-news .news-pin {
  position: relative;
  padding: var(--news-pad);
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--news-cut)), calc(100% - var(--news-cut)) 100%, 0 100%);
  box-shadow: var(--shadow-panel);
}

.page-news .news-pin-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--celadon);
}

.page-news .news-pin-no {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.1;
}

.page-news .news-pin-date {
  margin: 6px 0 18px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--coral-deep);
  background: var(--grad-wick);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-news .news-pin-list {
  margin: 0;
  border-top: var(--news-rule);
}

.page-news .news-pin-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: var(--news-rule);
}

.page-news .news-pin-row dt {
  font-size: 13px;
  color: var(--tide);
}

.page-news .news-pin-row dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

/* ---------- 通用区块 ---------- */
.page-news .news-timeline,
.page-news .news-log,
.page-news .news-roadmap {
  padding: 56px 0 8px;
}

.page-news .news-note,
.page-news .news-lede-small {
  margin: 0 0 22px;
  max-width: 62em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--tide);
}

.page-news .media-frame {
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  border-top: 3px solid var(--deep);
}

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

.page-news .news-timeline-figure {
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--news-cut) 100%, 0 calc(100% - var(--news-cut)));
}

.page-news .news-caption {
  padding: 10px 14px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--tide);
  border-top: var(--news-rule);
}

/* ---------- 本期变动 ---------- */
.page-news .news-current {
  padding: 56px 0 8px;
}

.page-news .news-current-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: 1fr;
}

.page-news .news-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 12.5px;
  color: var(--tide);
}

.page-news .news-level {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}

.page-news .news-level i {
  display: block;
  width: 8px;
  height: 8px;
  background: var(--line);
}

.page-news .news-level--1 i:nth-child(1) { background: var(--celadon-light); }
.page-news .news-level--2 i:nth-child(-n+2) { background: var(--celadon); }
.page-news .news-level--3 i { background: var(--coral); }

.page-news .news-change-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--news-rule);
}

.page-news .news-change {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "cat level"
    "text text";
  gap: 8px 14px;
  padding: 16px 0 16px 14px;
  border-bottom: var(--news-rule);
  transition: background-color .18s ease;
}

.page-news .news-change::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--coral);
  opacity: 0;
  transition: opacity .18s ease;
}

.page-news .news-change:hover::before,
.page-news .news-change:focus-within::before {
  opacity: 1;
}

.page-news .news-change:hover {
  background: rgba(255, 253, 248, .8);
}

.page-news .news-change-cat {
  grid-area: cat;
  justify-self: start;
}

.page-news .news-change-text {
  grid-area: text;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .news-change .news-level {
  grid-area: level;
  align-self: center;
}

.page-news .news-current-figure {
  border-top-color: var(--celadon);
}

/* ---------- 更新日志 ---------- */
.page-news .news-log-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-news .news-index {
  overflow-x: auto;
  padding-bottom: 8px;
}

.page-news .news-index-title {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--celadon);
}

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

.page-news .news-index li {
  flex: 0 0 auto;
}

.page-news .news-index a {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 5px 10px;
  font-size: 13px;
  color: var(--deep);
  text-decoration: none;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: border-color .18s ease, color .18s ease;
}

.page-news .news-index a:hover,
.page-news .news-index a:focus-visible {
  color: var(--coral-deep);
  border-color: var(--coral);
}

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

.page-news .news-log-item {
  scroll-margin-top: 110px;
  border-bottom: var(--news-rule);
}

.page-news .news-log-item summary {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  grid-template-areas:
    "no when meta"
    "no tags tags";
  align-items: center;
  gap: 6px 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color .18s ease;
}

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

.page-news .news-log-item summary:hover {
  background: rgba(255, 253, 248, .85);
}

.page-news .news-log-item summary:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
}

.page-news .news-log-no {
  grid-area: no;
  align-self: start;
  font-size: 24px;
  font-weight: 700;
  color: var(--tide);
  line-height: 1.1;
}

.page-news .news-log-when {
  grid-area: when;
  font-size: 15px;
  font-weight: 600;
}

.page-news .news-log-meta {
  grid-area: meta;
  font-size: 13px;
  color: var(--tide);
  white-space: nowrap;
}

.page-news .news-log-meta::after {
  content: " 展开";
  font-size: 11px;
  color: var(--celadon);
}

.page-news .news-log-item[open] .news-log-meta::after {
  content: " 收起";
  color: var(--coral-deep);
}

.page-news .news-log-tags {
  grid-area: tags;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12.5px;
  color: var(--tide);
}

.page-news .news-log-body {
  padding: 0 0 22px 68px;
}

.page-news .news-log-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  max-width: 60em;
}

/* 最近一期：灯芯渐变底板 */
.page-news .news-log-item--latest {
  margin-bottom: 10px;
  padding: 4px 18px;
  border-bottom: 0;
  background: var(--grad-wick);
  color: var(--paper);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
}

.page-news .news-log-item--latest .news-log-no,
.page-news .news-log-item--latest .news-log-when,
.page-news .news-log-item--latest .news-log-meta {
  color: var(--paper);
}

.page-news .news-log-item--latest .news-log-meta::after,
.page-news .news-log-item--latest .news-log-tags {
  color: rgba(255, 253, 248, .84);
}

.page-news .news-log-item--latest summary:hover {
  background: rgba(255, 253, 248, .12);
}

.page-news .news-log-item--latest .news-log-body p {
  color: var(--paper);
}

/* ---------- 版本演进 ---------- */
.page-news .news-roadmap-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  margin-bottom: 30px;
}

.page-news .news-roadmap-step {
  padding: 20px;
  background: var(--paper);
  border-left: 4px solid var(--celadon);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  box-shadow: var(--shadow-float);
}

.page-news .news-roadmap-step:nth-child(2) {
  border-left-color: var(--tide);
}

.page-news .news-roadmap-step:nth-child(3) {
  border-left-color: var(--coral);
}

.page-news .news-roadmap-year {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 700;
  color: var(--deep);
}

.page-news .news-roadmap-step h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.4;
}

.page-news .news-roadmap-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .news-roadmap-figure {
  border-top-color: var(--coral);
}

.page-news .news-roadmap-foot {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--tide);
}

.page-news .news-roadmap-foot a {
  color: var(--coral-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--coral);
}

/* ---------- 订阅节奏 ---------- */
.page-news .news-subscribe {
  margin-top: 56px;
  padding: 48px 0 60px;
  background: var(--deep);
  color: var(--mother);
  clip-path: polygon(0 42px, 100% 0, 100% 100%, 0 100%);
}

.page-news .news-subscribe-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: 1fr;
}

.page-news .news-subscribe .section-title {
  color: var(--mother);
}

.page-news .news-subscribe-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-deep);
  max-width: 46em;
}

.page-news .news-subscribe-copy a {
  color: var(--celadon-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 216, 206, .5);
}

.page-news .news-subscribe-copy a:hover,
.page-news .news-subscribe-copy a:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-news .news-subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .news-subscribe-actions .btn {
  text-decoration: none;
  border-bottom: 0;
}

.page-news .news-subscribe-figure {
  border-top-color: var(--celadon);
  background: transparent;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-news .news-hero h1 {
    font-size: 42px;
  }

  .page-news .news-hero .lede {
    font-size: 17px;
  }

  .page-news .news-pin-no,
  .page-news .news-pin-date {
    font-size: 36px;
  }

  .page-news .news-change {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "cat text level";
    align-items: center;
    gap: 14px;
  }

  .page-news .news-roadmap-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: end;
  }

  .page-news .news-roadmap-step:nth-child(2) {
    margin-bottom: 32px;
  }

  .page-news .news-roadmap-step:nth-child(3) {
    margin-bottom: 64px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-news .breadcrumb {
    padding-top: 108px;
  }

  .page-news .news-hero {
    padding: 60px 0 108px;
  }

  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }

  .page-news .news-hero h1 {
    font-size: 52px;
  }

  .page-news .news-current-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 44px;
  }

  .page-news .news-log-layout {
    grid-template-columns: minmax(0, 1fr) 146px;
    grid-template-areas: "list index";
    gap: 48px;
  }

  .page-news .news-log-list {
    grid-area: list;
  }

  .page-news .news-index {
    grid-area: index;
    position: sticky;
    top: 104px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-index ol {
    flex-direction: column;
    gap: 2px;
  }

  .page-news .news-index a {
    width: 100%;
    justify-content: flex-start;
  }

  .page-news .news-log-no {
    font-size: 27px;
  }

  .page-news .news-subscribe-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-hero h1 {
    font-size: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-change,
  .page-news .news-log-item summary,
  .page-news .news-index a {
    transition: none;
  }
}