.page-news {
  --pn-card: rgba(7, 19, 38, 0.55);
  --pn-card-hover: rgba(15, 37, 68, 0.94);
  --pn-hard: 6px 6px 0 rgba(7, 19, 38, 0.55);
  --pn-soft-line: rgba(23, 28, 38, 0.16);
}

/* 通用小件 */
.page-news .pn-link {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 2px solid rgba(242, 179, 61, 0.5);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .pn-link:hover,
.page-news .pn-link:focus-visible {
  color: var(--amber-soft);
  border-color: var(--amber-soft);
}

.page-news .pn-hero,
.page-news .pn-list,
.page-news .pn-quarter,
.page-news .pn-rhythm,
.page-news .pn-guide,
.page-news .pn-submit {
  padding-block: clamp(34px, 5.5vw, 72px);
}

.page-news .pn-group,
.page-news .pn-quarter__grid,
.page-news .pn-timeline,
.page-news .pn-guide__grid,
.page-news .pn-submit__grid {
  scroll-margin-top: 96px;
}

/* 首屏 */
.page-news .pn-hero {
  border-bottom: 2px solid var(--line-strong);
}

.page-news .pn-hero .breadcrumb {
  margin-bottom: 18px;
  color: var(--muted);
}

.page-news .pn-hero .breadcrumb__link {
  color: var(--celadon);
  text-decoration: none;
}

.page-news .pn-hero .breadcrumb__link:hover,
.page-news .pn-hero .breadcrumb__link:focus-visible {
  color: var(--amber);
}

.page-news .pn-hero__inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: end;
}

.page-news .pn-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0.32em 0 0.42em;
}

.page-news .pn-hero__copy h1 em {
  font-style: normal;
  color: var(--amber);
  box-shadow: inset 0 -0.16em 0 rgba(70, 201, 174, 0.4);
}

.page-news .pn-hero__copy .lead {
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
  line-height: 1.75;
}

.page-news .pn-hero__fig {
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--indigo-800);
  box-shadow: var(--pn-hard);
}

.page-news .pn-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 560;
  object-fit: cover;
}

/* 系列标签 */
.page-news .pn-series {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .pn-series__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 12px;
  border: 2px solid var(--line-strong);
  background: rgba(15, 37, 68, 0.7);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.35;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.page-news .pn-series__idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--celadon);
  transition: color 0.18s ease;
}

.page-news .pn-series__link:hover,
.page-news .pn-series__link:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--indigo-950);
  transform: translateY(-2px);
}

.page-news .pn-series__link:hover .pn-series__idx,
.page-news .pn-series__link:focus-visible .pn-series__idx {
  color: var(--indigo-950);
}

/* 观察列表 */
.page-news .pn-list {
  background-image: linear-gradient(var(--line) 1px, transparent 1px);
  background-size: 100% 96px;
  background-position: 0 0;
}

.page-news .pn-list .section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  color: var(--paper);
  letter-spacing: -0.01em;
  margin: 0;
}

.page-news .pn-list__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

.page-news .pn-board {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 4vw, 44px);
}

/* 时间刻度侧栏 */
.page-news .pn-rail {
  border-left: 3px solid var(--amber);
  padding-left: 14px;
}

.page-news .pn-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-news .pn-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .pn-rail__link {
  display: grid;
  gap: 2px;
  padding: 7px 9px;
  border: 1px solid transparent;
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-news .pn-rail__t {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--amber-soft);
}

.page-news .pn-rail__k {
  font-size: 0.76rem;
  color: var(--muted);
}

.page-news .pn-rail__link:hover,
.page-news .pn-rail__link:focus-visible {
  background: rgba(242, 179, 61, 0.1);
  border-color: var(--amber);
}

.page-news .pn-rail__link:hover .pn-rail__t,
.page-news .pn-rail__link:focus-visible .pn-rail__t {
  color: var(--amber);
}

/* 分组与条目 */
.page-news .pn-groups {
  display: grid;
  gap: clamp(30px, 4vw, 46px);
}

.page-news .pn-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-strong);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 2.6vw, 1.42rem);
  color: var(--paper);
}

.page-news .pn-group__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--indigo-950);
  background: var(--celadon);
  padding: 3px 7px;
  letter-spacing: 0.06em;
}

.page-news .pn-entries {
  display: grid;
  gap: 14px;
}

.page-news .pn-entry {
  background: var(--pn-card);
  border: 2px solid var(--line);
  border-left: 6px solid var(--celadon-deep);
  padding: 16px 16px 18px;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.page-news .pn-entry:hover {
  background: var(--pn-card-hover);
  border-color: var(--amber);
  transform: translate(-2px, -2px);
}

.page-news .pn-entry__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-news .pn-entry__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2.1vw, 1.12rem);
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-entry__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .pn-entry__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
}

.page-news .pn-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 3px 7px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.page-news .pn-tag--old {
  background: var(--warm-gray);
  color: var(--charcoal);
}

.page-news .pn-tag--new {
  background: var(--cool-white);
  color: var(--indigo-950);
}

.page-news .pn-tag--dev {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--celadon);
}

/* 季度复核 */
.page-news .pn-quarter {
  border-top: 2px solid var(--charcoal);
  border-bottom: 2px solid var(--charcoal);
}

.page-news .pn-quarter__grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-news .pn-quarter .eyebrow {
  color: var(--indigo-700);
}

.page-news .pn-quarter h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--charcoal);
  margin: 0.3em 0 0.5em;
}

.page-news .pn-quarter__lead {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(23, 28, 38, 0.82);
  max-width: 54ch;
}

.page-news .pn-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-news .pn-field {
  background: var(--paper);
  border: 2px solid var(--charcoal);
  border-top-width: 6px;
  padding: 12px 13px 14px;
}

.page-news .pn-field:nth-child(1) { border-top-color: var(--celadon-deep); }
.page-news .pn-field:nth-child(2) { border-top-color: var(--amber); }
.page-news .pn-field:nth-child(3) { border-top-color: var(--indigo-800); }
.page-news .pn-field:nth-child(4) { border-top-color: var(--celadon); }

.page-news .pn-field__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--charcoal);
}

.page-news .pn-field__title {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--charcoal);
}

.page-news .pn-field__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: rgba(23, 28, 38, 0.74);
}

.page-news .pn-quarter__fig {
  margin: 0;
  border: 2px solid var(--charcoal);
  background: var(--cool-white);
  box-shadow: 8px 8px 0 rgba(23, 28, 38, 0.14);
}

.page-news .pn-quarter__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 640;
  object-fit: cover;
}

.page-news .pn-quarter__cap {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--charcoal);
  padding: 9px 12px;
  border-top: 1px solid var(--pn-soft-line);
}

/* iOS 更新节奏 */
.page-news .pn-rhythm {
  border-bottom: 2px solid var(--line-strong);
}

.page-news .pn-rhythm .section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.42rem, 3.4vw, 2.05rem);
  color: var(--paper);
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 24ch;
}

.page-news .pn-rhythm__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--celadon);
}

.page-news .pn-rhythm__lead {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .pn-timeline {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-news .pn-timeline__item {
  padding: 12px 12px 14px;
  background: rgba(15, 37, 68, 0.6);
  border-top: 5px solid var(--celadon-deep);
}

.page-news .pn-timeline__item--fb {
  border-top-color: var(--amber);
}

.page-news .pn-timeline__idx {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .pn-timeline__title {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--paper);
}

.page-news .pn-timeline__text {
  margin: 0 0 8px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-news .pn-timeline__tag {
  margin: 0;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border: 1px solid var(--line-strong);
  color: var(--celadon);
}

.page-news .pn-timeline__item--fb .pn-timeline__tag {
  border-color: rgba(242, 179, 61, 0.5);
  color: var(--amber-soft);
}

.page-news .pn-rhythm__fig {
  margin: clamp(22px, 3vw, 32px) 0 0;
  border: 2px solid var(--line);
  background: var(--indigo-800);
}

.page-news .pn-rhythm__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 420;
  object-fit: cover;
}

.page-news .pn-rhythm__more {
  margin: 16px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 入口导视 */
.page-news .pn-guide {
  border-bottom: 2px solid var(--charcoal);
}

.page-news .pn-guide .section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.42rem, 3.4vw, 2rem);
  color: var(--charcoal);
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 22ch;
}

.page-news .pn-guide__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--indigo-700);
}

.page-news .pn-guide__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(22px, 3vw, 34px);
  align-items: start;
}

.page-news .pn-guide__panels {
  display: grid;
  gap: 14px;
}

.page-news .pn-guide__panel {
  border: 2px solid var(--charcoal);
  padding: 16px 16px 18px;
  box-shadow: 6px 6px 0 rgba(23, 28, 38, 0.16);
}

.page-news .pn-guide__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--indigo-700);
}

.page-news .pn-guide__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.06rem;
  color: var(--charcoal);
}

.page-news .pn-guide__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(23, 28, 38, 0.78);
}

.page-news .pn-guide__fig {
  margin: 0;
  border: 2px solid var(--charcoal);
  background: var(--warm-gray);
}

.page-news .pn-guide__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 600;
  object-fit: cover;
}

.page-news .pn-guide__more {
  margin: 20px 0 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(23, 28, 38, 0.8);
}

.page-news .pn-guide__more .pn-link {
  color: var(--indigo-700);
  border-bottom-color: rgba(23, 53, 94, 0.5);
}

.page-news .pn-guide__more .pn-link:hover,
.page-news .pn-guide__more .pn-link:focus-visible {
  color: var(--charcoal);
  border-color: var(--charcoal);
}

/* 线索提交 */
.page-news .pn-submit__grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
  align-items: start;
}

.page-news .pn-submit h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 0.3em 0 0.6em;
}

.page-news .pn-submit__lead {
  margin: 0 0 14px;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 52ch;
}

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

.page-news .pn-submit__actions .btn {
  text-decoration: none;
}

.page-news .pn-steps {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-news .pn-step {
  border: 2px solid var(--line-strong);
  border-left: 6px solid var(--amber);
  background: rgba(7, 19, 38, 0.5);
  padding: 14px 15px 16px;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-news .pn-step:hover {
  border-color: var(--amber);
  background: var(--pn-card-hover);
}

.page-news .pn-step__num {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-news .pn-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--paper);
}

.page-news .pn-step__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .pn-submit__more {
  margin: 24px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 平板与桌面 */
@media (min-width: 700px) {
  .page-news .pn-entries {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .pn-entry {
    grid-column: span 3;
  }

  .page-news .pn-entry:nth-child(3n + 1) {
    grid-column: span 6;
  }

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

@media (min-width: 900px) {
  .page-news .pn-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

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

  .page-news .pn-board {
    grid-template-columns: 158px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .pn-rail {
    position: sticky;
    top: 24px;
  }

  .page-news .pn-quarter__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-news .pn-timeline {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .pn-guide__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-news .pn-submit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-series__link,
  .page-news .pn-entry,
  .page-news .pn-step,
  .page-news .pn-rail__link,
  .page-news .pn-link {
    transition: none;
  }

  .page-news .pn-series__link:hover,
  .page-news .pn-series__link:focus-visible,
  .page-news .pn-entry:hover {
    transform: none;
  }
}
<<<END>>>