:root{--primary-color:#2c5aa0;--gradient-primary:linear-gradient(135deg, #667eea 0%, #764ba2 100%)}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);min-height:100vh;line-height:1.6;color:#2d3748}.card{border:none;border-radius:12px;box-shadow:0 4px 16px rgb(0 0 0 / .1);background:#fff;overflow:hidden;transition:all 0.3s ease;margin-bottom:1.5rem}.card:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgb(0 0 0 / .15)}.card-header{background:var(--gradient-primary);color:#fff;padding:1.25rem 1.5rem;border:none;font-weight:600;font-size:1.1rem}.form-control,.form-select{border:2px solid #e2e8f0;border-radius:10px;padding:12px 16px;font-weight:500;transition:all 0.3s ease}.form-control:focus,.form-select:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(44 90 160 / .1);transform:translateY(-1px)}.btn{border-radius:10px;padding:12px 24px;font-weight:600;border:none;transition:all 0.3s ease}.btn-primary{background:var(--gradient-primary);box-shadow:0 4px 15px rgb(44 90 160 / .3)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(44 90 160 / .4)}.converter-result{padding:20px;background:linear-gradient(135deg,#e8f5e8 0%,#f0f9f0 100%);border-radius:12px;border-left:4px solid #28a745;margin-top:20px}.conversion-arrow{font-size:2rem;color:var(--primary-color);text-align:center;margin:15px 0}.calendar-container{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 8px rgb(0 0 0 / .05)}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding:10px 0;border-bottom:2px solid #e2e8f0}.calendar-nav{background:var(--gradient-primary);color:#fff;border:none;border-radius:8px;padding:8px 12px;cursor:pointer;transition:all 0.3s ease}.calendar-nav:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgb(44 90 160 / .3)}.calendar-title{font-size:1.3rem;font-weight:700;color:var(--primary-color)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:#e2e8f0;border-radius:8px;overflow:hidden}.calendar-weekday{background:var(--gradient-primary);color:#fff;padding:12px 8px;text-align:center;font-weight:600;font-size:.9rem}.calendar-day{background:#fff;min-height:70px;padding:8px 4px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;cursor:pointer;transition:all 0.3s ease}.calendar-day:hover{background:#f8fafc;transform:scale(1.02)}.calendar-day.other-month{background:#f8f9fa;color:#6c757d}.calendar-day.today{background:linear-gradient(135deg,#fff3cd 0%,#ffeaa7 100%);border:2px solid #ffc107}.calendar-day.selected{background:linear-gradient(135deg,#cce7ff 0%,#b3d9ff 100%);border:2px solid var(--primary-color)}.solar-date{font-weight:700;font-size:1rem;color:#2d3748;margin-bottom:2px}.lunar-date{font-size:.7rem;color:#666;text-align:center;line-height:1.2}.lunar-special{color:#dc3545;font-weight:600}@media (max-width:768px){.calendar-day{min-height:60px;padding:4px 2px}.solar-date{font-size:.9rem}.lunar-date{font-size:.6rem}}