.page-news {
  --insights-hero-title-font: var(--ff-heading, 'Inter', 'Noto Sans SC', system-ui, sans-serif);
  --insights-hero-stat-font: var(--ff-mono, 'JetBrains Mono', 'Courier New', monospace);
  --insights-hero-bg: var(--clr-dark-bg, #121212);
  --insights-hero-text: var(--clr-primary-bg, #F5F0E8);
  --insights-hero-accent: var(--clr-accent-red, #CC2936);
  --insights-card-bg: var(--clr-card-bg, #FFFFFF);
  --insights-card-shadow: 0 4px 20px rgba(0,0,0,0.08);
  --insights-card-radius: 1rem;
  --insights-section-margin: 4rem 0;
  --insights-grid-gap: 1.5rem;

  background-color: var(--clr-primary-bg, #F5F0E8);
  color: var(--clr-primary-text, #1A1A1A);
  font-family: var(--ff-body, 'Inter', 'Noto Sans SC', system-ui, sans-serif);
  line-height: var(--lh-body, 1.6);
  overflow-x: hidden;
}

/* ===== 内联容器 ===== */
.page-news .container {
  max-width: var(--container-max-width, 1280px);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ===== 面包屑 ===== */
.page-news .insights-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small, 0.875rem);
  color: rgba(255,255,255,0.7);
  margin-bottom: 1.5rem;
}

.page-news .insights-breadcrumb a {
  color: var(--clr-gold, #C9A94E);
  text-decoration: none;
  transition: color 0.2s;
}

.page-news .insights-breadcrumb a:hover {
  color: var(--clr-accent-red, #CC2936);
}

.page-news .insights-breadcrumb__sep {
  color: rgba(255,255,255,0.5);
}

/* ===== 首屏 ===== */
.page-news .insights-hero {
  position: relative;
  min-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--insights-hero-bg);
  color: var(--insights-hero-text);
  overflow: hidden;
  isolation: isolate;
}

.page-news .insights-hero__bg-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .insights-hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-news .insights-hero__grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255,255,255,0.08) 39px, rgba(255,255,255,0.08) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255,255,255,0.08) 39px, rgba(255,255,255,0.08) 40px);
  animation: grid-pulse 8s ease-in-out infinite;
}

@keyframes grid-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

.page-news .insights-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: min(90vw, 800px);
  padding: 2rem 1rem;
}

.page-news .insights-hero__title {
  font-family: var(--insights-hero-title-font);
  font-size: var(--fs-h2, 3rem);
  line-height: var(--lh-headings, 1.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin: 0 0 1rem 0;
}

.page-news .insights-hero__label {
  font-size: var(--fs-small, 0.875rem);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--clr-gold, #C9A94E);
}

.page-news .insights-hero__stat {
  font-family: var(--ff-body, 'Inter', 'Noto Sans SC', sans-serif);
  font-weight: 400;
  font-size: 1.25rem;
  color: rgba(255,255,255,0.8);
}

.page-news .insights-hero__stat-value {
  font-family: var(--insights-hero-stat-font);
  font-size: clamp(4rem, 20vw, 8rem);
  font-weight: 700;
  color: var(--insights-hero-accent);
  line-height: 1;
  display: block;
  margin: 0.25rem 0 0 0;
}

.page-news .insights-hero__stat-unit {
  font-size: var(--fs-body, 1rem);
  color: rgba(255,255,255,0.6);
}

.page-news .insights-hero__desc {
  font-size: var(--fs-body, 1rem);
  color: rgba(255,255,255,0.75);
  max-width: 500px;
  margin: 1rem auto 0;
}

/* ===== 区域标题 ===== */
.page-news .section-heading {
  font-family: var(--ff-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: var(--fs-h3, 2rem);
  font-weight: 700;
  line-height: var(--lh-headings, 1.1);
  margin: 0 0 2rem 0;
  color: var(--clr-primary-text, #1A1A1A);
  position: relative;
  display: inline-block;
}

.page-news .section-heading::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--clr-accent-red, #CC2936);
  margin-top: 0.5rem;
  border-radius: 2px;
}

/* ===== 近期观察 ===== */
.page-news .insights-observations {
  margin: var(--insights-section-margin);
}

.page-news .insights-observations__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding-bottom: 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-accent-red, #CC2936) transparent;
}

.page-news .insights-observations__scroll::-webkit-scrollbar {
  height: 6px;
}

.page-news .insights-observations__scroll::-webkit-scrollbar-track {
  background: transparent;
}

.page-news .insights-observations__scroll::-webkit-scrollbar-thumb {
  background-color: var(--clr-accent-red, #CC2936);
  border-radius: 3px;
}

.page-news .insights-observations__track {
  display: flex;
  gap: var(--insights-grid-gap);
  min-width: min-content;
  padding: 0.25rem;
}

.page-news .observation-card {
  flex: 0 0 85vw;
  max-width: 380px;
  background: var(--insights-card-bg);
  border-radius: var(--insights-card-radius);
  box-shadow: var(--insights-card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.page-news .observation-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.page-news .observation-card__content {
  padding: 1.5rem;
  flex: 1;
}

.page-news .observation-card__title {
  font-family: var(--ff-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 0.75rem 0;
  color: var(--clr-accent-blue, #1E3A5F);
}

.page-news .observation-card__summary {
  font-size: var(--fs-body, 1rem);
  color: var(--clr-secondary-text, #4A4A4A);
  line-height: 1.5;
  margin: 0 0 0.75rem 0;
}

.page-news .observation-card__full-text {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease;
}

.page-news .observation-card__full-text[data-expanded="true"] {
  max-height: 500px;
  opacity: 1;
}

.page-news .observation-card__full-text p {
  font-size: var(--fs-small, 0.875rem);
  color: var(--clr-secondary-text, #4A4A4A);
  margin: 0 0 0.5rem 0;
}

.page-news .observation-card__toggle {
  background: none;
  border: none;
  color: var(--clr-accent-red, #CC2936);
  font-family: var(--ff-body, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: var(--fs-small, 0.875rem);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
  margin-top: 0.5rem;
}

.page-news .observation-card__toggle:hover {
  color: var(--clr-gold, #C9A94E);
}

.page-news .observation-card__chart {
  padding: 0 1.5rem 1.5rem 1.5rem;
}

.page-news .observation-card__img {
  width: 100%;
  height: auto;
  max-height: 160px;
  object-fit: cover;
  border-radius: 0.5rem;
}

/* ===== 平台更新 ===== */
.page-news .insights-updates {
  margin: var(--insights-section-margin);
  background: var(--clr-card-bg, #FFFFFF);
  padding: 3rem 0;
}

.page-news .insights-updates .container {
  padding: 0 1rem;
}

.page-news .insights-updates__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-news .insights-update-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--clr-primary-bg, #F5F0E8);
  border-radius: 0.75rem;
  transition: background 0.2s;
}

.page-news .insights-update-item:hover {
  background: var(--clr-hover-tint, rgba(204, 41, 54, 0.1));
}

.page-news .insights-update-item__icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: var(--clr-accent-blue, #1E3A5F);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-news .insights-update-item__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(10);
}

.page-news .insights-update-item__content {
  flex: 1;
}

.page-news .insights-update-item__title {
  font-family: var(--ff-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: var(--clr-primary-text, #1A1A1A);
}

.page-news .insights-update-item__desc {
  font-size: var(--fs-small, 0.875rem);
  color: var(--clr-secondary-text, #4A4A4A);
  margin: 0;
  line-height: 1.5;
}

/* ===== 使用技巧 ===== */
.page-news .insights-tips {
  margin: var(--insights-section-margin);
  padding-bottom: 4rem;
}

.page-news .insights-tips__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--insights-grid-gap);
}

.page-news .tip-card {
  background: var(--insights-card-bg);
  border-radius: var(--insights-card-radius);
  padding: 1.5rem;
  box-shadow: var(--insights-card-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.page-news .tip-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,0.1);
}

.page-news .tip-card__number {
  font-family: var(--insights-hero-stat-font);
  font-size: 3rem;
  font-weight: 700;
  color: var(--clr-accent-red, #CC2936);
  opacity: 0.15;
  position: absolute;
  top: 0.25rem;
  right: 0.75rem;
  line-height: 1;
  pointer-events: none;
}

.page-news .tip-card__title {
  font-family: var(--ff-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  color: var(--clr-accent-blue, #1E3A5F);
}

.page-news .tip-card__desc {
  font-size: var(--fs-small, 0.875rem);
  color: var(--clr-secondary-text, #4A4A4A);
  margin: 0;
  line-height: 1.5;
}

/* ===== 响应式 | 平板 768px+ ===== */
@media (min-width: 768px) {
  .page-news .container {
    padding: 0 2rem;
  }

  .page-news .insights-hero {
    min-height: 70vh;
  }

  .page-news .insights-hero__title {
    font-size: var(--fs-h1, 4.5rem);
  }

  .page-news .insights-hero__stat-value {
    font-size: clamp(5rem, 15vw, 10rem);
  }

  .page-news .observation-card {
    flex: 0 0 45vw;
    max-width: 450px;
  }

  .page-news .insights-updates__list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .page-news .insights-update-item {
    padding: 1.25rem;
  }

  .page-news .insights-tips__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== 响应式 | 桌面 1024px+ ===== */
@media (min-width: 1024px) {
  .page-news .container {
    padding: 0 3rem;
  }

  .page-news .insights-hero__content {
    max-width: 900px;
  }

  .page-news .observation-card {
    flex: 0 0 30vw;
    max-width: 480px;
  }

  .page-news .insights-updates__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .tip-card__number {
    font-size: 4rem;
  }
}

/* ===== 宽屏适配 ===== */
@media (min-width: 1400px) {
  .page-news .insights-hero__title {
    font-size: 5.5rem;
  }

  .page-news .insights-hero__stat-value {
    font-size: 12rem;
  }

  .page-news .observation-card {
    flex: 0 0 25vw;
  }
}