.page-news {
  --section-space: clamp(56px, 8vw, 96px);
  background: var(--fb-white);
  color: var(--fb-dark);
}

/* ===== Hero ===== */
.page-news__hero {
  position: relative;
  background:
    linear-gradient(115deg, rgba(255, 109, 0, 0.12) 0%, transparent 38%),
    linear-gradient(180deg, var(--fb-carbon) 0%, var(--fb-carbon-light) 72%, var(--fb-green) 130%);
  color: var(--fb-white);
  padding: clamp(40px, 7vw, 88px) 0 clamp(48px, 7vw, 84px);
  overflow: hidden;
}

.page-news__hero::before {
  content: "NEWS";
  position: absolute;
  top: 50%;
  right: -0.05em;
  transform: translateY(-50%);
  font-family: var(--fb-heading);
  font-size: clamp(92px, 18vw, 260px);
  line-height: 1;
  color: rgba(255, 255, 255, 0.045);
  letter-spacing: -0.03em;
  pointer-events: none;
  user-select: none;
}

.page-news__hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--fb-green) 0%, var(--fb-green) 42%, var(--fb-orange) 42%, var(--fb-orange) 58%, var(--fb-gold) 58%, var(--fb-gold) 100%);
}

.page-news__hero .content-wrap {
  position: relative;
  z-index: 1;
}

.page-news__hero .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
  font-family: var(--fb-mono);
  font-size: 0.8125rem;
}

.page-news__hero .breadcrumb a {
  color: var(--fb-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-news__hero .breadcrumb a:hover {
  color: var(--fb-orange);
}

.page-news__hero .breadcrumb__sep {
  color: var(--fb-gray);
}

.page-news__eyebrow {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding: 0.375rem 0.75rem;
  font-family: var(--fb-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fb-orange);
  border: 1px solid rgba(201, 162, 39, 0.5);
  border-left-width: 4px;
}

.page-news__h1 {
  margin: 0 0 1rem;
  font-family: var(--fb-heading);
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  line-height: 0.98;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.page-news__h1-brand {
  display: block;
  color: var(--fb-white);
}

.page-news__h1-brand::after {
  content: "";
  display: inline-block;
  width: 0.38em;
  height: 0.38em;
  margin-left: 0.1em;
  background: var(--fb-orange);
  vertical-align: 0.08em;
}

.page-news__lead {
  max-width: 680px;
  margin: 0 0 2rem;
  font-size: clamp(1rem, 1.5vw, 1.1875rem);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.page-news__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 36px);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.page-news__hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-news__hero-stat-num {
  font-family: var(--fb-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1;
  color: var(--fb-white);
}

.page-news__hero-stat-label {
  font-family: var(--fb-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 区块通用头部 ===== */
.page-news__latest {
  padding: var(--section-space) 0;
}

.page-news__categories {
  padding: var(--section-space) 0;
  background: var(--fb-light);
}

.page-news__tags {
  padding: var(--section-space) 0;
  background: var(--fb-carbon);
}

.page-news__section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  position: relative;
}

.page-news__section-head::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.75rem;
  width: 64px;
  height: 4px;
  background: var(--fb-orange);
}

.page-news__section-head--center {
  justify-content: center;
  text-align: center;
}

.page-news__section-head--center::before {
  left: 50%;
  transform: translateX(-50%);
}

.page-news__kicker {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--fb-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fb-green);
}

.page-news__kicker--alt {
  color: var(--fb-orange-dark);
}

.page-news__kicker--gold {
  color: var(--fb-gold);
}

.page-news__heading {
  margin: 0;
  font-family: var(--fb-heading);
  font-size: clamp(1.875rem, 3.6vw, 3rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--fb-carbon);
}

.page-news__tags .page-news__heading {
  color: var(--fb-white);
}

.page-news__tags .page-news__head-note {
  color: rgba(255, 255, 255, 0.6);
}

.page-news__head-note {
  margin: 0;
  font-family: var(--fb-mono);
  font-size: 0.8125rem;
  color: var(--fb-gray);
}

/* ===== 文章卡片网格 ===== */
.page-news__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
}

.page-news__card {
  position: relative;
  background: var(--fb-white);
  border: 1px solid rgba(18, 18, 18, 0.08);
  box-shadow: var(--fb-shadow);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.page-news__card:hover,
.page-news__card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(18, 18, 18, 0.13);
}

.page-news__card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.page-news__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background:
    repeating-linear-gradient(-45deg, var(--fb-light) 0, var(--fb-light) 8px, rgba(201, 162, 39, 0.12) 8px, rgba(201, 162, 39, 0.12) 9px);
}

.page-news__media img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-news__media::after {
  content: "FB";
  position: absolute;
  right: 0.625rem;
  bottom: 0.625rem;
  font-family: var(--fb-heading);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--fb-white);
  background: var(--fb-carbon);
  padding: 0.3125rem 0.4375rem 0.25rem;
}

.page-news__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.25rem 1.25rem 1.5rem;
}

.page-news__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.page-news__tag {
  display: inline-block;
  padding: 0.25rem 0.5625rem 0.2rem;
  font-family: var(--fb-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fb-white);
  background: var(--fb-green);
  border-left: 3px solid var(--fb-orange);
}

.page-news__tag--version {
  background: var(--fb-carbon);
  border-left-color: var(--fb-gold);
}

.page-news__tag--usage {
  background: var(--fb-orange-dark);
  border-left-color: var(--fb-gold);
}

.page-news__tag--data {
  background: var(--fb-green);
  border-left-color: var(--fb-orange);
}

.page-news__time {
  font-family: var(--fb-mono);
  font-size: 0.75rem;
  color: var(--fb-gray);
}

.page-news__title {
  margin: 0 0 0.625rem;
  font-family: var(--fb-body);
  font-size: clamp(1.0625rem, 1.6vw, 1.3125rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--fb-carbon);
}

.page-news__excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--fb-dark);
  transition: -webkit-line-clamp 0.2s ease;
}

.page-news__card:hover .page-news__excerpt,
.page-news__card:focus-within .page-news__excerpt {
  -webkit-line-clamp: 4;
}

.page-news__more {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: auto;
  font-family: var(--fb-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fb-green);
}

.page-news__more::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--fb-orange);
}

.page-news__card:hover .page-news__more {
  color: var(--fb-orange);
}

.page-news__row-num {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  padding: 1rem 0;
  font-family: var(--fb-heading);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--fb-white);
  background: var(--fb-carbon);
}

/* ===== 文章分类 ===== */
.page-news__cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-bottom: 2.5rem;
}

.page-news__cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1.5rem;
  font-family: var(--fb-body);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--fb-white);
  background: var(--fb-carbon);
  transform: skewX(-10deg);
  box-shadow: 0 2px 0 rgba(18, 18, 18, 0.14);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news__cat-btn span {
  transform: skewX(10deg);
}

.page-news__cat-btn-num {
  font-family: var(--fb-mono);
  font-size: 0.8125rem;
  color: var(--fb-orange);
}

.page-news__cat-btn:hover {
  background: var(--fb-green);
  transform: skewX(-10deg) translateY(-2px);
  box-shadow: 0 6px 18px rgba(18, 18, 18, 0.22);
}

.page-news__cat-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-news__cat-section {
  padding: 1.5rem;
  background: var(--fb-white);
  border-top: 4px solid var(--fb-green);
  box-shadow: var(--fb-shadow);
}

.page-news__cat-head {
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(18, 18, 18, 0.08);
}

.page-news__cat-title {
  margin: 0 0 0.375rem;
  font-family: var(--fb-heading);
  font-size: 1.375rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--fb-carbon);
}

.page-news__cat-head p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--fb-gray);
}

.page-news__cat-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news__cat-links li + li {
  margin-top: 0.625rem;
  padding-top: 0.625rem;
  border-top: 1px dashed rgba(18, 18, 18, 0.12);
}

.page-news__cat-links a {
  display: inline-block;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--fb-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news__cat-links a:hover {
  color: var(--fb-orange);
  border-bottom-color: var(--fb-orange);
}

/* ===== 热门标签 ===== */
.page-news__tags .page-news__section-head {
  margin-bottom: 2.5rem;
}

.page-news__tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  max-width: 760px;
  margin: 0 auto;
}

.page-news__tag-chip {
  display: inline-block;
  padding: 0.4375rem 1rem 0.375rem;
  font-family: var(--fb-mono);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--fb-white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--fb-gold);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.page-news__tag-chip::before {
  content: "#";
  margin-right: 0.2em;
  color: var(--fb-orange);
}

.page-news__tag-chip:hover {
  color: var(--fb-carbon);
  background: var(--fb-gold);
  box-shadow: 0 4px 14px rgba(201, 162, 39, 0.35);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-news__grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-news__card--feature {
    grid-column: span 7;
  }

  .page-news__card--stack {
    grid-column: span 5;
  }

  .page-news__card--swap {
    grid-column: span 5;
  }

  .page-news__card--wide {
    grid-column: span 7;
  }

  .page-news__card--row {
    grid-column: 1 / -1;
  }

  .page-news__card--row .page-news__card-link {
    flex-direction: row;
    align-items: stretch;
  }

  .page-news__row-num {
    width: 120px;
    min-width: 120px;
  }
}

@media (min-width: 1024px) {
  .page-news__hero {
    padding-bottom: 96px;
  }

  .page-news__hero-stats {
    justify-content: flex-start;
  }

  .page-news__latest,
  .page-news__categories,
  .page-news__tags {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .page-news__cat-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}