/* ===== 内容专栏页面专属样式 ===== */
.page-news {
  --news-gap: 2rem;
  --news-card-radius: var(--radius-md);
  --news-grid-min: 280px;
  --news-transition: var(--transition-smooth);
  display: block;
  width: 100%;
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
}

/* ===== 面包屑 ===== */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-divider);
}

.page-news .breadcrumb a {
  color: var(--color-accent-purple);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--color-hover-state);
  text-decoration: underline;
}

.page-news .breadcrumb-sep {
  color: var(--color-divider);
  user-select: none;
}

.page-news .breadcrumb [aria-current="page"] {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ===== 页面标题区 ===== */
.page-news .page-header {
  margin-bottom: 2.5rem;
}

.page-news .page-header-text {
  margin-bottom: 1rem;
}

.page-news .page-header h1 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-left: 4px solid var(--color-accent-purple);
  padding-left: 0.75rem;
}

.page-news .page-subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin: 0.5rem 0 0;
  letter-spacing: 0.01em;
}

.page-news .pixel-divider {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin-top: 0.75rem;
  image-rendering: pixelated;
  border: 1px solid var(--color-divider);
}

/* ===== 最新攻略区域 ===== */
.page-news .guides-section {
  margin-bottom: 3rem;
}

.page-news .guides-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text-primary);
  margin: 0 0 1rem;
  display: inline-block;
  border-bottom: 3px solid var(--color-accent-purple);
  padding-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ===== 筛选栏 ===== */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.page-news .filter-bar input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

.page-news .filter-label {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-card-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-capsule);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  font-family: var(--font-body);
}

.page-news .filter-label:hover {
  border-color: var(--color-accent-purple);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow-purple);
}

.page-news .filter-bar input[type="radio"]:focus-visible + .filter-label {
  outline: 2px solid var(--color-accent-green);
  outline-offset: 2px;
}

.page-news #df-all:checked ~ .guides-grid .guide-card { display: flex; }
.page-news #df-hard:checked ~ .guides-grid .guide-card[data-difficulty="hard"] { display: flex; }
.page-news #df-hard:checked ~ .guides-grid .guide-card:not([data-difficulty="hard"]) { display: none; }
.page-news #df-medium:checked ~ .guides-grid .guide-card[data-difficulty="medium"] { display: flex; }
.page-news #df-medium:checked ~ .guides-grid .guide-card:not([data-difficulty="medium"]) { display: none; }
.page-news #df-easy:checked ~ .guides-grid .guide-card[data-difficulty="easy"] { display: flex; }
.page-news #df-easy:checked ~ .guides-grid .guide-card:not([data-difficulty="easy"]) { display: none; }

.page-news #df-all:checked ~ .guides-grid .guide-card { display: flex; }
.page-news #df-hard:checked ~ .guides-grid .guide-card[data-difficulty="hard"] { display: flex; }
.page-news #df-hard:checked ~ .guides-grid .guide-card:not([data-difficulty="hard"]) { display: none; }
.page-news #df-medium:checked ~ .guides-grid .guide-card[data-difficulty="medium"] { display: flex; }
.page-news #df-medium:checked ~ .guides-grid .guide-card:not([data-difficulty="medium"]) { display: none; }
.page-news #df-easy:checked ~ .guides-grid .guide-card[data-difficulty="easy"] { display: flex; }
.page-news #df-easy:checked ~ .guides-grid .guide-card:not([data-difficulty="easy"]) { display: none; }

/* 选中态 */
.page-news #df-all:checked ~ .filter-bar label[for="df-all"],
.page-news #df-hard:checked ~ .filter-bar label[for="df-hard"],
.page-news #df-medium:checked ~ .filter-bar label[for="df-medium"],
.page-news #df-easy:checked ~ .filter-bar label[for="df-easy"] {
  color: var(--color-primary-bg);
  background: var(--color-accent-purple);
  border-color: var(--color-accent-purple);
  box-shadow: var(--shadow-glow-purple);
}

/* ===== 攻略网格 ===== */
.page-news .guides-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

/* ===== 攻略卡片 ===== */
.page-news .guide-card {
  display: flex;
  flex-direction: column;
  background: var(--color-card-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--news-card-radius);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-news .guide-card:hover {
  border-color: var(--color-accent-purple);
  box-shadow: var(--shadow-card), var(--shadow-glow-purple);
}

.page-news .guide-card[open] {
  border-color: var(--color-accent-purple);
  box-shadow: var(--shadow-card), var(--shadow-glow-purple);
}

/* ===== 卡片摘要（折叠状态始终可见） ===== */
.page-news .guide-summary {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.75rem;
  cursor: pointer;
  list-style: none;
  align-items: flex-start;
}

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

.page-news .guide-thumb {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--color-divider);
  transition: transform var(--transition-fast);
}

.page-news .guide-card:hover .guide-thumb {
  transform: scale(1.02);
}

.page-news .guide-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
}

.page-news .guide-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
}

.page-news .guide-stars {
  font-size: 1rem;
  color: var(--color-accent-purple);
  letter-spacing: 0.15em;
}

.page-news .guide-spec {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.page-news .guide-update {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* ===== 高亮数字 ===== */
.page-news .highlight-green {
  color: var(--color-accent-green);
  font-weight: 700;
}

/* ===== 详细攻略内容（展开后显示） ===== */
.page-news .guide-detail {
  padding: 0 0.75rem 0.75rem;
  border-top: 1px solid var(--color-divider);
  margin-top: 0;
  animation: fadeSlideIn 0.3s ease;
}

.page-news .guide-detail p {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-news .inline-link {
  color: var(--color-accent-purple);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--color-hover-state);
}

/* ===== 优化实验室 ===== */
.page-news .optimization-section {
  margin-bottom: 3rem;
}

.page-news .optimization-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text-primary);
  margin: 0 0 1.25rem;
  display: inline-block;
  border-bottom: 3px solid var(--color-accent-purple);
  padding-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.page-news .optimization-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--news-card-radius);
  padding: 1.25rem;
}

.page-news .optimization-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  order: 2;
}

.page-news .optimization-item {
  border-left: 3px solid var(--color-accent-green);
  padding-left: 1rem;
}

.page-news .optimization-item-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.35rem;
  letter-spacing: 0.01em;
}

.page-news .optimization-item p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}

.page-news .optimization-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-divider);
  order: 1;
}

/* ===== 平台动态 ===== */
.page-news .updates-section {
  margin-bottom: 2rem;
}

.page-news .updates-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text-primary);
  margin: 0 0 1.25rem;
  display: inline-block;
  border-bottom: 3px solid var(--color-accent-purple);
  padding-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.page-news .updates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-news .update-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--news-card-radius);
  padding: 1.25rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-news .update-card:hover {
  border-color: var(--color-accent-green);
  box-shadow: var(--shadow-card), var(--shadow-glow-green);
}

.page-news .update-icon {
  width: 100%;
  max-width: 100px;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-divider);
}

.page-news .update-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: 0.01em;
}

.page-news .update-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}

/* ===== 动效 ===== */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================ */
/* 响应式 - 平板 (≥600px)                       */
/* ============================================ */
@media screen and (min-width: 600px) {
  .page-news {
    padding: 2rem 1.5rem 4rem;
  }

  .page-news .page-header h1 {
    font-size: 2.2rem;
  }

  .page-news .page-subtitle {
    font-size: 1.1rem;
  }

  .page-news .guides-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .page-news .guide-summary {
    padding: 1rem;
  }

  .page-news .guide-detail {
    padding: 0 1rem 1rem;
  }

  .page-news .optimization-content {
    flex-direction: row;
    align-items: flex-start;
    padding: 1.5rem;
  }

  .page-news .optimization-list {
    order: 1;
    flex: 1;
  }

  .page-news .optimization-image {
    order: 2;
    width: 280px;
    flex-shrink: 0;
  }

  .page-news .updates-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .page-news .update-card {
    padding: 1.5rem;
  }

  .page-news .update-icon {
    max-width: 80px;
  }
}

/* ============================================ */
/* 响应式 - 桌面 (≥1024px)                      */
/* ============================================ */
@media screen and (min-width: 1024px) {
  .page-news {
    padding: 2.5rem 2rem 5rem;
  }

  .page-news .page-header h1 {
    font-size: 2.8rem;
    padding-left: 1rem;
    border-left-width: 5px;
  }

  .page-news .page-subtitle {
    font-size: 1.2rem;
  }

  .page-news .guides-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }

  .page-news .guide-summary {
    padding: 1.25rem;
  }

  .page-news .guide-thumb {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }

  .page-news .guide-detail {
    padding: 0 1.25rem 1.25rem;
  }

  .page-news .optimization-content {
    padding: 2rem;
  }

  .page-news .optimization-image {
    width: 340px;
  }

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

  .page-news .update-card {
    padding: 1.75rem;
  }

  .page-news .update-icon {
    max-width: 100px;
  }

  .page-news .filter-bar {
    gap: 0.75rem;
  }

  .page-news .filter-label {
    padding: 0.45rem 1.6rem;
    font-size: 0.9rem;
  }
}

/* ============================================ */
/* 宽屏微调 (≥1440px)                           */
/* ============================================ */
@media screen and (min-width: 1440px) {
  .page-news .guides-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .page-news .optimization-image {
    width: 400px;
  }
}