/* 竹月主题（中文模式） */
:root {
    --color-primary: #e8f4e5;
    --color-accent: #2c1810;
    --color-highlight: #c23b22;
    --color-secondary: #4a90a4;
    --color-bg: #f5f9f4;
    --color-card: #ffffff;
    --color-border: #c8dfc4;
    --color-text: #2c1810;
    --color-text-muted: #7a8a76;
    --font-heading: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
}

body.lang-zh {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Crect x='38' y='10' width='4' height='60' rx='2' fill='%2391b493' opacity='0.08'/%3E%3Crect x='50' y='5' width='3' height='50' rx='1.5' fill='%2391b493' opacity='0.06'/%3E%3C/svg%3E");
}

.main-nav { background: rgba(245,249,244,0.93); border-bottom-color: #c8dfc4; }
.nav-link.active { background: #e8f4e5; }
.nav-logo { color: #2c1810; }

/* 竹节装饰 */
.card::before { background: linear-gradient(90deg, #c23b22, #4a90a4); }

/* 按钮 */
.btn-primary { background: #c23b22; }
.btn-secondary { background: #4a90a4; }
.btn-outline { border-color: #2c1810; color: #2c1810; }
.btn-outline:hover { background: #2c1810; }