/* ─────────────────────────────────────────────────────────
   Blog List Page — blog/assets/css/blog.css
───────────────────────────────────────────────────────── */

/* 覆盖 style.css 全局的 overflow:hidden（首页专用），允许普通页面滚动 */
html {
  overflow-x: hidden;
  overflow-y: auto;
}
body {
  overflow: visible;
}

/* ── Hero ── */
.blog-hero {
  background: var(--bg-dark, #09090B);
  padding: 120px 24px 64px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.blog-hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.blog-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand-purple, #A78BFA);
  background: rgba(167,139,250,.12);
  border: 1px solid rgba(167,139,250,.25);
  border-radius: 20px;
  padding: 4px 14px;
  margin-bottom: 20px;
}

.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: -.02em;
}

.blog-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,.55);
  margin: 0 0 20px;
  line-height: 1.7;
}

.blog-hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,.35);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 5px 16px;
}

#hero-total-count {
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-purple, #A78BFA);
}

/* ── 分类筛选栏 ── */
.blog-cats-bar {
  background: var(--bg-dark, #09090B);
  border-bottom: 1px solid rgba(255,255,255,.06);
  position: sticky;
  top: 64px;   /* navbar 高度 */
  z-index: 90;
}

.blog-cats-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.blog-cats-inner::-webkit-scrollbar { display: none; }

.blog-cat {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: rgba(255,255,255,.45);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  padding: 14px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}
.blog-cat:hover  { color: rgba(255,255,255,.85); }
.blog-cat.active {
  color: var(--brand-purple, #A78BFA);
  border-bottom-color: var(--brand-purple, #A78BFA);
}

/* ── 主体 ── */
.blog-main {
  background: var(--bg-dark, #09090B);
  min-height: 60vh;
  padding: 48px 24px 80px;
}

.blog-container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ── 搜索行 ── */
.blog-search-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.blog-search-wrap {
  flex: 1;
  position: relative;
  max-width: 380px;
}
.blog-search-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,.3);
  font-size: 14px;
  pointer-events: none;
}
.blog-search-wrap input {
  width: 100%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  padding: 10px 14px 10px 38px;
  outline: none;
  transition: border-color .2s;
}
.blog-search-wrap input::placeholder { color: rgba(255,255,255,.25); }
.blog-search-wrap input:focus { border-color: rgba(167,139,250,.5); }

.blog-count {
  font-size: 13px;
  color: rgba(255,255,255,.35);
  white-space: nowrap;
}

/* ── 文章卡片网格 ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── 文章卡片 ── */
.blog-card {
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  overflow: hidden;
  transition: transform .22s, border-color .22s, box-shadow .22s;
  text-decoration: none;
  color: inherit;
}
.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(167,139,250,.35);
  box-shadow: 0 12px 40px rgba(0,0,0,.4);
}

/* 封面 */
.blog-card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--brand-gradient, linear-gradient(135deg,#6366F1,#A78BFA));
  position: relative;
  overflow: hidden;
}
.blog-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.blog-card-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: rgba(255,255,255,.25);
  background: linear-gradient(135deg, rgba(99,102,241,.3), rgba(167,139,250,.2));
}

/* 内容区 */
.blog-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px 22px 22px;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.blog-card-cat {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--brand-purple, #A78BFA);
  background: rgba(167,139,250,.12);
  border-radius: 6px;
  padding: 2px 8px;
}

.blog-card-date {
  font-size: 12px;
  color: rgba(255,255,255,.35);
}

.blog-card-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  line-height: 1.45;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-summary {
  font-size: 13.5px;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.blog-card-tag {
  font-size: 11px;
  color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.07);
  border-radius: 5px;
  padding: 2px 8px;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.07);
  padding-top: 14px;
  margin-top: auto;
}
.blog-card-read {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-purple, #A78BFA);
  display: flex;
  align-items: center;
  gap: 6px;
}
.blog-card-read i {
  font-size: 11px;
  transition: transform .18s;
}
.blog-card:hover .blog-card-read i { transform: translateX(3px); }

/* ── 空状态 ── */
.blog-empty {
  text-align: center;
  padding: 80px 0;
  color: rgba(255,255,255,.25);
}
.blog-empty i { font-size: 48px; margin-bottom: 16px; display: block; }
.blog-empty p { font-size: 15px; margin: 0; }

/* ─────────────────────────────────────────────────────────
   响应式
───────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-hero {
    padding: 100px 20px 48px;
  }
  .blog-hero h1 {
    font-size: 1.9rem;
  }

  .blog-cats-bar {
    top: 56px;
  }

  .blog-main {
    padding: 32px 16px 60px;
  }

  .blog-search-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 24px;
  }
  .blog-search-wrap {
    max-width: 100%;
    width: 100%;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .blog-card-cover {
    aspect-ratio: 21/9;
  }
}

@media (max-width: 480px) {
  .blog-hero h1 { font-size: 1.6rem; }
  .blog-card-body { padding: 16px 18px 18px; }
  .blog-card-title { font-size: 15px; }
}