.page-news {
  --pn-gap: clamp(28px, 4vw, 64px);
  background-color: var(--ink-900);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-news .breadcrumb {
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .04em;
  color: var(--muted);
}

.page-news .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */

.page-news .pn-hero {
  position: relative;
  padding: clamp(28px, 4vw, 56px) 0 clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-news .pn-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 130%;
  background: radial-gradient(52% 62% at 84% 12%, rgba(60, 42, 120, .62), transparent 68%),
              radial-gradient(38% 48% at 4% 88%, rgba(26, 143, 138, .22), transparent 70%);
  pointer-events: none;
}

.page-news .pn-hero-grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-news .pn-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-news .pn-hero .lead {
  max-width: 34em;
  margin: 0 0 26px;
  color: var(--muted);
  font-size: var(--fs-lead);
  line-height: 1.72;
}

.page-news .pn-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}

.page-news .pn-hero-meta li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .pn-hero-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-news .pn-hero-v {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan);
}

.page-news .pn-hero-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-news .pn-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-news .media-caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--muted);
}

.page-news .pn-figure {
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

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

/* ---------- 骨架：左轨 + 主内容 + 右栏 ---------- */

.page-news .pn-shell {
  padding: clamp(30px, 4.4vw, 64px) 0 clamp(56px, 7vw, 104px);
}

.page-news .pn-rail {
  display: flex;
  gap: 6px;
  margin: 0 0 24px;
  padding: 0 0 10px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line-soft);
  scrollbar-width: thin;
}

.page-news .pn-rail .rail-step {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.page-news .pn-rail .rail-step:hover {
  color: var(--cream);
  border-color: var(--line);
}

.page-news .pn-rail .rail-step.is-active {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .pn-rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
}

.page-news .pn-main {
  min-width: 0;
}

.page-news .pn-side {
  margin-top: 40px;
}

/* ---------- 章节 ---------- */

.page-news .pn-sec {
  padding: clamp(34px, 4.6vw, 64px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .pn-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .pn-sec-head {
  margin-bottom: clamp(20px, 2.6vw, 32px);
}

.page-news .pn-sec h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  color: var(--cream);
}

.page-news .pn-sub {
  max-width: 38em;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.page-news .pn-note {
  max-width: 40em;
  margin: 22px 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 201, 138, .07);
  color: var(--cream);
  font-size: 15px;
}

/* ---------- 速览三张 ---------- */

.page-news .pn-picks {
  display: grid;
  gap: 16px;
}

.page-news .pn-pick {
  display: flex;
  flex-direction: column;
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: border-color 140ms ease, background-color 140ms ease;
}

.page-news .pn-pick:hover {
  border-color: var(--teal);
  background: #1A2A6B;
}

.page-news .pn-pick--lead {
  background: linear-gradient(158deg, #1E2C6E 0%, var(--panel) 62%);
  border-color: #324AA0;
}

.page-news .pn-pick-top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-news .pn-pick h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.25;
  color: var(--cream);
}

.page-news .pn-pick > p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
}

.page-news .pn-pick-facts {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 8px;
}

.page-news .pn-pick-facts > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.page-news .pn-pick-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-news .pn-pick-facts dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
}

/* ---------- 标签分组 ---------- */

.page-news .pn-tag-groups {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .pn-tag-group {
  --g: var(--cyan);
  padding: 22px 20px 24px;
  background: var(--ink-800);
  box-shadow: inset 0 2px 0 var(--g);
}

.page-news .pn-tag-group:nth-child(1) { --g: var(--cyan); }
.page-news .pn-tag-group:nth-child(2) { --g: var(--amber); }
.page-news .pn-tag-group:nth-child(3) { --g: var(--orange); }
.page-news .pn-tag-group:nth-child(4) { --g: var(--teal); }

.page-news .pn-tag-group h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--cream);
}

.page-news .pn-tag-group p {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- 对比矩阵 ---------- */

.page-news .pn-matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  -webkit-overflow-scrolling: touch;
}

.page-news .pn-matrix {
  width: 100%;
  min-width: 730px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-news .pn-matrix th,
.page-news .pn-matrix td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}

.page-news .pn-matrix thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .09em;
  color: var(--muted);
  background: var(--ink-950);
  border-bottom-color: var(--line);
  white-space: nowrap;
}

.page-news .pn-matrix tbody th {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  color: var(--cream);
  white-space: nowrap;
}

.page-news .pn-matrix tbody td {
  color: var(--muted);
}

.page-news .pn-matrix tbody tr {
  transition: background-color 100ms ease;
}

.page-news .pn-matrix tbody tr:hover {
  background: rgba(49, 225, 212, .07);
}

.page-news .pn-matrix tbody tr:hover th {
  color: var(--cyan);
}

.page-news .pn-matrix tbody tr:last-child th,
.page-news .pn-matrix tbody tr:last-child td {
  border-bottom: 0;
}

.page-news .pn-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .pn-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 2px 6px 2px 0;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(23, 37, 95, .72);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--muted);
  white-space: nowrap;
}

.page-news .pn-heat {
  display: inline-flex;
  gap: 3px;
  vertical-align: middle;
}

.page-news .pn-heat i {
  display: block;
  width: 6px;
  height: 14px;
  border-radius: 1px;
  background: var(--line);
}

.page-news .pn-heat--1 i:nth-child(-n+1),
.page-news .pn-heat--2 i:nth-child(-n+2),
.page-news .pn-heat--3 i:nth-child(-n+3) {
  background: var(--orange);
}

/* ---------- 条目列表 ---------- */

.page-news .pn-entries {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-news .pn-entry {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  gap: 12px 16px;
  align-items: baseline;
  padding: 16px 14px 16px 8px;
  border-bottom: 1px solid var(--line-soft);
  transition: background-color 110ms ease, box-shadow 110ms ease;
}

.page-news .pn-entry:hover {
  background: rgba(23, 37, 95, .55);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-news .pn-entry-no {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--line);
}

.page-news .pn-entry:hover .pn-entry-no {
  color: var(--cyan);
}

.page-news .pn-entry-body {
  min-width: 0;
}

.page-news .pn-entry-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.3;
  color: var(--cream);
}

.page-news .pn-entry-tags {
  margin: 0;
}

.page-news .pn-entry-time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .pn-figure--entries {
  margin-top: 26px;
}

/* ---------- 样本说明 ---------- */

.page-news .pn-sample-grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
}

.page-news .pn-sample-copy > p {
  margin: 0 0 20px;
  max-width: 36em;
  color: var(--muted);
}

.page-news .pn-sample-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-news .pn-sample-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
  color: var(--muted);
}

.page-news .pn-sample-k {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .09em;
  color: var(--cyan);
}

.page-news .pn-figure--sample {
  margin-top: 0;
}

/* ---------- 三步选择 ---------- */

.page-news .pn-steps {
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .pn-step {
  padding: 22px 20px 24px;
  background: var(--violet);
}

.page-news .pn-step:nth-child(2) {
  background: #33246A;
}

.page-news .pn-step:nth-child(3) {
  background: #2B1F5C;
}

.page-news .pn-step-no {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--amber);
  color: #23103A;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .08em;
}

.page-news .pn-step h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--cream);
}

.page-news .pn-step p {
  margin: 0;
  font-size: 15px;
  color: #D7D3EE;
}

.page-news .pn-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 右栏 ---------- */

.page-news .pn-side-block {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow);
}

.page-news .pn-side-block + .pn-side-block {
  margin-top: 14px;
}

.page-news .pn-side-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-news .pn-cloud-chip {
  margin: 0;
}

.page-news .pn-cloud-chip--hot {
  border-color: var(--teal);
  color: var(--cream);
  background: rgba(26, 143, 138, .24);
}

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

.page-news .pn-archive li + li {
  border-top: 1px solid var(--line-soft);
}

.page-news .pn-archive a {
  display: block;
  padding: 11px 0;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color 110ms ease;
}

.page-news .pn-archive a:hover {
  color: var(--cyan);
}

.page-news .pn-side-block--tip {
  background: linear-gradient(165deg, #24306F 0%, var(--ink-800) 70%);
  border-color: #38499B;
}

.page-news .pn-side-text {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .pn-tag-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .pn-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .pn-picks {
    grid-template-columns: 1.35fr minmax(0, 1fr);
  }

  .page-news .pn-pick--lead {
    grid-row: span 2;
  }
}

@media (min-width: 900px) {
  .page-news .pn-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  }

  .page-news .pn-picks {
    grid-template-columns: 1.35fr minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-news .pn-pick--lead {
    grid-row: auto;
  }

  .page-news .pn-shell {
    display: grid;
    grid-template-columns: 138px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 48px);
    align-items: start;
  }

  .page-news .pn-rail {
    position: sticky;
    top: 96px;
    display: block;
    margin: 0;
    padding: 0 0 0 2px;
    overflow: visible;
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-news .pn-rail .rail-step {
    display: flex;
    margin: 0 0 4px;
    padding: 8px 8px 8px 12px;
    border-radius: 0 var(--radius) var(--radius) 0;
    border-color: transparent;
  }

  .page-news .pn-side {
    grid-column: 2;
    margin-top: 0;
  }

  .page-news .pn-sample-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-news .pn-shell {
    grid-template-columns: 138px minmax(0, 1fr) 244px;
  }

  .page-news .pn-side {
    grid-column: 3;
    position: sticky;
    top: 96px;
  }

  .page-news .pn-tag-groups {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 639px) {
  .page-news .pn-entry {
    grid-template-columns: 36px minmax(0, 1fr);
    padding-right: 4px;
  }

  .page-news .pn-entry-time {
    grid-column: 2;
    justify-self: start;
  }

  .page-news .pn-cta-row .btn {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-pick,
  .page-news .pn-entry,
  .page-news .pn-rail .rail-step,
  .page-news .pn-archive a {
    transition: none;
  }
}
<<<END>>>