.page-hero { background: linear-gradient(160deg, #1A1A2E 0%, #2A1535 40%, #1A1A2E 70%, #0F1030 100%); }
.page-hero::before { background: radial-gradient(ellipse 60% 50% at 30% 60%, rgba(108,92,231,0.12), transparent 70%), radial-gradient(ellipse 40% 60% at 70% 30%, rgba(162,155,254,0.06), transparent 70%); }
.page-hero h1 { text-shadow: 0 2px 20px rgba(108,92,231,0.3); }
/* 词汇卡片网格 */
.vocab-source-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 32px 0; }
.vocab-source-card { background: #fff; border-radius: 12px; padding: 28px 20px; text-align: center; box-shadow: 0 2px 16px rgba(0,0,0,0.04); border: 1px solid #EDE8E0; transition: all 0.35s; position: relative; overflow: hidden; }
.vocab-source-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; transition: height 0.3s; }
.vocab-source-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.vocab-source-card:hover::before { height: 6px; }
.vocab-source-card:nth-child(1)::before { background: linear-gradient(90deg, #C41E3A, #E74C3C); }
.vocab-source-card:nth-child(2)::before { background: linear-gradient(90deg, #2E86AB, #3498DB); }
.vocab-source-card:nth-child(3)::before { background: linear-gradient(90deg, #D4A843, #F0C060); }
.vocab-source-card:nth-child(4)::before { background: linear-gradient(90deg, #2A9D8F, #48C9B0); }
.vocab-source-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; margin: 0 auto 14px; }
.vocab-source-card:nth-child(1) .vocab-source-icon { background: rgba(196,30,58,0.1); }
.vocab-source-card:nth-child(2) .vocab-source-icon { background: rgba(46,134,171,0.1); }
.vocab-source-card:nth-child(3) .vocab-source-icon { background: rgba(212,168,67,0.1); }
.vocab-source-card:nth-child(4) .vocab-source-icon { background: rgba(42,157,143,0.1); }
.vocab-source-card h3 { font-size: 1.15rem; margin-bottom: 6px; font-family: var(--font-display); }
.vocab-source-card p { font-size: 0.85rem; color: #777; line-height: 1.5; }
/* 词汇高亮 */
.word-spotlight { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 24px 0; }
.word-item { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid #EDE8E0; border-radius: 10px; padding: 14px 16px; transition: all 0.3s; }
.word-item:hover { border-color: #D4A843; box-shadow: 0 4px 16px rgba(212,168,67,0.08); transform: translateX(4px); }
.word-char { font-size: 1.6rem; font-weight: 700; color: #C41E3A; min-width: 40px; text-align: center; font-family: serif; }
.word-info h5 { font-size: 0.95rem; margin-bottom: 2px; }
.word-info span { font-size: 0.78rem; color: #999; }
/* 网络语卡片 */
.netword-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin: 24px 0; }
.netword-card { background: #fff; border-radius: 10px; padding: 18px 16px; border: 1px solid #EDE8E0; box-shadow: 0 2px 10px rgba(0,0,0,0.03); transition: all 0.3s; }
.netword-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.06); border-color: #6C5CE7; }
.netword-card h4 { font-size: 1.1rem; color: #6C5CE7; margin-bottom: 4px; }
.netword-card .net-meaning { font-size: 0.88rem; color: #444; line-height: 1.4; }
/* 响应式 */
@media (max-width: 900px) { .vocab-source-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .vocab-source-grid { grid-template-columns: 1fr; } .word-spotlight { grid-template-columns: 1fr; } }