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

.page-news .news-wrap {
  padding-top: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 头条 ---------- */
.page-news .news-lead {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(20px, 3.4vw, 44px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--grid);
}

.page-news .lead-title {
  font-family: var(--font-display);
  font-size: var(--fs-700);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 10px 0 20px;
  color: var(--paper);
}

.page-news .lead-lede {
  max-width: 42ch;
  color: var(--ink-60);
  font-size: var(--fs-300);
  line-height: 1.85;
  margin: 0 0 22px;
}

.page-news .lead-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-news .lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.page-news .lead-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--grid);
  align-self: stretch;
}

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

.page-news .lead-figure::before,
.page-news .lead-figure::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
  opacity: 0.85;
}

.page-news .lead-figure::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-news .lead-figure::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

/* ---------- 左栏 + 文章流 ---------- */
.page-news .news-layout {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-news .side-label {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-40);
  margin: 0 0 14px;
}

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

.page-news .news-index-link {
  display: block;
  padding: 9px 0 9px 14px;
  border-left: 1px solid var(--grid);
  color: var(--ink-60);
  font-size: var(--fs-200);
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .news-index-link:hover,
.page-news .news-index-link:focus-visible {
  color: var(--paper);
  border-left-color: var(--cyan);
}

.page-news .news-index-link.is-current {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-news .side-scale {
  margin-top: 22px;
  height: 96px;
  width: 12px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--grid) 0 1px,
    transparent 1px 12px
  );
  background-size: 10px 100%;
  background-repeat: no-repeat;
  background-position: left top;
}

.page-news .side-note {
  margin: 18px 0 0;
  font-size: var(--fs-100);
  line-height: 1.8;
  color: var(--muted);
  max-width: 30ch;
}

/* ---------- 分组 ---------- */
.page-news .news-group {
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-news .group-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 6px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--grid);
  font-size: var(--fs-400);
  font-weight: 800;
  color: var(--paper);
}

.page-news .group-title .num {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

/* ---------- 条目 ---------- */
.page-news .post {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--grid);
}

.page-news .post-meta {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 12px;
}

.page-news .post-time {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.06em;
  color: var(--ink-40);
  white-space: nowrap;
}

.page-news .post-kind {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding-left: 10px;
  border-left: 1px solid var(--grid);
}

.page-news .post-kind--fixture { color: var(--cyan); }
.page-news .post-kind--cases { color: var(--warm); }
.page-news .post-kind--version { color: var(--silver); }
.page-news .post-kind--topic { color: var(--amber); }

.page-news .post-title {
  margin: 0 0 8px;
  font-size: var(--fs-400);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .post-summary {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--ink-60);
  max-width: 64ch;
}

.page-news .post-figure {
  margin: 14px 0 0;
  border: 1px solid var(--grid);
}

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

.page-news .post-more {
  margin-top: 12px;
}

.page-news .post-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.1em;
  color: var(--cyan);
}

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

.page-news .post-more summary::before {
  content: "+";
  display: inline-block;
  width: 12px;
  font-size: 14px;
  line-height: 1;
}

.page-news .post-more[open] summary::before {
  content: "−";
}

.page-news .post-more summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

.page-news .post-body {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--grid);
}

.page-news .post-body p {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--ink-60);
  max-width: 62ch;
}

/* ---------- 专题区块（暖灰场域） ---------- */
.page-news .topic-block {
  margin-top: clamp(12px, 2vw, 24px);
  padding: clamp(24px, 4vw, 52px);
  background: var(--warm);
  color: var(--ink);
}

.page-news .topic-inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-news .topic-figure {
  margin: 0;
  border: 1px solid rgba(7, 26, 21, 0.28);
  background: rgba(7, 26, 21, 0.06);
}

.page-news .topic-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.page-news .topic-eyebrow {
  color: rgba(7, 26, 21, 0.6);
  margin: 0 0 8px;
}

.page-news .topic-title {
  margin: 0 0 14px;
  font-size: var(--fs-600);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .topic-lede {
  margin: 0 0 22px;
  font-size: var(--fs-200);
  line-height: 1.85;
  color: rgba(7, 26, 21, 0.74);
  max-width: 52ch;
}

.page-news .topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .topic-card {
  padding: 16px 0;
  border-top: 1px solid rgba(7, 26, 21, 0.2);
}

.page-news .topic-card:last-child {
  border-bottom: 1px solid rgba(7, 26, 21, 0.2);
}

.page-news .topic-no {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.14em;
  color: rgba(7, 26, 21, 0.55);
}

.page-news .topic-card-title {
  margin: 6px 0 6px;
  font-size: var(--fs-300);
  font-weight: 800;
  color: var(--ink);
}

.page-news .topic-card-text {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.8;
  color: rgba(7, 26, 21, 0.72);
  max-width: 56ch;
}

/* ---------- 订阅与联系 ---------- */
.page-news .news-contact {
  margin-top: clamp(32px, 5vw, 64px);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--grid);
  background: var(--panel);
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-news .contact-title {
  margin: 10px 0 14px;
  font-size: var(--fs-600);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .contact-lede {
  margin: 0 0 22px;
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--ink-60);
  max-width: 48ch;
}

.page-news .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.page-news .contact-facts {
  margin: 0;
  display: grid;
  gap: 0;
  align-content: start;
}

.page-news .contact-row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--grid);
}

.page-news .contact-row:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-news .contact-key {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-news .contact-val {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-news .contact-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 1px;
}

.page-news .contact-link:hover,
.page-news .contact-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .post {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 4px 24px;
  }

  .page-news .post-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-top: 4px;
  }

  .page-news .post-kind {
    padding-left: 0;
    border-left: 0;
  }
}

@media (min-width: 900px) {
  .page-news .news-lead {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-news .topic-inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-news .news-contact {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-news .news-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-side {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (min-width: 1140px) {
  .page-news .post:nth-child(even) {
    padding-left: clamp(16px, 2.6vw, 40px);
    border-left: 1px solid var(--grid);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-index-link {
    transition: none;
  }
}