/* =========================================
   笔记页样式
   ========================================= */
#archive-header { padding: 140px 0 40px; text-align: center; }
.archive-sub { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-secondary); margin: 12px auto 32px; max-width: 600px; }

.search-wrap {
  max-width: 500px; margin: 0 auto 40px; position: relative;
}
.search-input {
  width: 100%; padding: 14px 44px 14px 20px; border-radius: 30px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-primary); font-size: 1rem; outline: none;
  transition: var(--transition);
}
.search-input::placeholder { color: var(--text-secondary); opacity: 0.7; }
.search-input:focus { border-color: var(--accent-purple); background: rgba(255,255,255,0.1); box-shadow: 0 0 15px rgba(123,104,238,0.3); }
.search-icon {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  color: var(--text-secondary); pointer-events: none; transition: var(--transition);
}
.search-input:focus ~ .search-icon { color: var(--accent-gold); transform: translateY(-50%) scale(1.1); }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
  margin-bottom: 48px; padding: 0 16px;
}
.filter-tag {
  padding: 8px 18px; border-radius: 20px; font-size: 0.9rem; font-weight: 500;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-secondary); cursor: pointer; transition: var(--transition);
  user-select: none;
}
.filter-tag:hover { background: rgba(123,104,238,0.15); border-color: rgba(123,104,238,0.3); color: var(--text-primary); }
.filter-tag.active {
  background: linear-gradient(135deg, rgba(123,104,238,0.25), rgba(147,112,219,0.2));
  border-color: var(--accent-purple); color: var(--text-primary);
  box-shadow: 0 0 12px rgba(123,104,238,0.4);
}

.notes-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px; margin-bottom: 60px;
}
.note-card {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 16px;
  padding: 24px; backdrop-filter: blur(var(--blur-glass));
  box-shadow: 0 4px 12px rgba(0,0,0,0.3), 0 0 15px rgba(123,104,238,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.4s ease;
  display: flex; flex-direction: column; gap: 14px; position: relative; overflow: hidden;
}
.note-card::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(255,215,0,0.1) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.5s ease; pointer-events: none;
}
.note-card:hover { transform: translateY(-8px); box-shadow: 0 12px 28px rgba(0,0,0,0.4), 0 0 30px rgba(123,104,238,0.2); }
.note-card:hover::before { opacity: 1; }
.note-card.hidden { opacity: 0; transform: scale(0.95); pointer-events: none; position: absolute; }

.card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.category-pill { font-size: 0.75rem; padding: 4px 10px; border-radius: 12px; background: rgba(96, 165, 250, 0.15); color: #60A5FA; font-weight: 500; }
.orbit-level { display: flex; gap: 4px; font-size: 0.85rem; color: var(--text-secondary); }
.star { color: #4A5568; transition: color 0.2s; }
.star.active { color: var(--accent-gold); text-shadow: 0 0 6px rgba(255,215,0,0.6); }

.note-title { font-size: 1.25rem; font-weight: 600; line-height: 1.4; margin: 0; color: var(--text-primary); }
.note-excerpt { 
  font-size: 0.95rem; 
  color: var(--text-secondary); 
  margin: 0; 
  display: -webkit-box; 
  -webkit-line-clamp: 3; 
  line-clamp: 3; 
  -webkit-box-orient: vertical; 
  overflow: hidden;
  overflow-wrap: break-word;
}
.card-meta { font-size: 0.85rem; color: var(--text-secondary); display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.05); }
.read-link { font-weight: 600; display: flex; align-items: center; gap: 4px; }
.read-link::after { content: '→'; transition: transform 0.2s; }
.read-link:hover::after { transform: translateX(4px); }

.load-more { text-align: center; padding: 20px 0 80px; }
.load-btn {
  background: transparent; border: 1px dashed rgba(255,255,255,0.3); color: var(--text-secondary);
  padding: 12px 32px; border-radius: 30px; cursor: pointer; font-size: 0.95rem; transition: var(--transition);
}
.load-btn:hover { border-color: var(--accent-purple); color: var(--text-primary); background: rgba(123,104,238,0.1); }
.load-btn.loading { pointer-events: none; opacity: 0.6; }
.no-results { text-align: center; padding: 60px 20px; color: var(--text-secondary); font-size: 1.1rem; display: none; }
.no-results svg { width: 60px; height: 60px; margin-bottom: 16px; opacity: 0.5; }

/* =========================================
   响应式调整
   ========================================= */
@media (max-width: 768px) {
  .notes-grid { grid-template-columns: 1fr; }
  #archive-header { padding-top: 110px; }
  .filter-tag { font-size: 0.85rem; padding: 6px 14px; }
}