:root {--theme-color:#002B5B;--theme-light:#1a4573;--theme-hover:#003875;}
body {background-color:#f5f7fa;}
.sidebar {background-color:var(--theme-color);min-height:100vh;color:white;box-shadow:2px 0 10px rgba(0,0,0,0.1);border-radius:12px;margin:10px;}
.main-content {min-height:100vh;background-color:#f5f7fa;}
.container {max-width:1500px;margin:0 auto;padding: 0;}
.card {border:none;border-radius:12px;box-shadow:0 2px 15px rgba(0,0,0,0.05);transition:all 0.3s ease;}
.nav-link {color:#e0e0e0;padding:12px 20px;border-radius:8px;margin-bottom:8px;transition:all 0.3s ease;cursor:pointer;font-size:0.95rem;}
.nav-link:hover {background-color:var(--theme-hover);color:white;transform:translateX(5px);}
.nav-link.active {background-color:var(--theme-light);color:white;font-weight:500;}
.nav-link i {width:20px;text-align:center;}
.card-body {padding:1.5rem;}
.card-title {color:var(--theme-color);font-size:1.1rem;font-weight:600;margin-bottom:1rem;}
.card-text {font-size:1.5rem;font-weight:bold;color:#666;}
h2 {color:var(--theme-color);font-weight:600;margin-bottom:1.5rem;}
h4.text-center {font-size:1.3rem;padding:1.2rem 0;}
.card-stats {display:flex;align-items:center;justify-content:space-between;}
.stats-icon {font-size:2.5rem;opacity:0.2;position:absolute;right:1.5rem;top:50%;transform:translateY(-50%);}
.recent-activity {margin-top:2rem;}
.recent-activity .card {background:linear-gradient(145deg,#ffffff,#f8f9fa);}
.mobile-nav {display:none;background-color:var(--theme-color);padding:1rem;position:sticky;top:-1px;z-index:1000;}
.mobile-nav .navbar-brand {color:white;font-size:1.2rem;}
.mobile-nav .navbar-toggler {color:white;border-color:rgba(255,255,255,0.5);}
.offcanvas {background-color:var(--theme-color);max-width:280px;}
.offcanvas-header {padding:1rem;border-bottom:1px solid rgba(255,255,255,0.1);}
.offcanvas-title {font-size:1.2rem;}
.offcanvas-body {padding:1rem;}
.navbar-toggler {padding:0.5rem;border:1px solid rgba(255,255,255,0.3);}
.navbar-toggler:focus {box-shadow:none;}
@media (max-width:991.98px) {
.sidebar {display:none;}
.mobile-nav {display:block;}
.main-content {width:100%;margin-left:0;padding:1rem !important;}
.container-fluid {padding:0;}
}
/* 修改关闭按钮样式 */ 
.btn-close {filter:invert(1) grayscale(100%) brightness(200%);opacity:0.7;}
.btn-close:hover {opacity:1;}
.offcanvas-header .btn-close {margin:0;padding:0.5rem;}
/* 底部导航栏样式 */ 
.mobile-bottom-nav {position:fixed;bottom:0;left:0;right:0;background:#888888;box-shadow:0 -2px 10px rgba(0,0,0,0.1);z-index:1000;}
.mobile-bottom-nav .col {border-right:2px solid#fff;}
.mobile-bottom-nav .col:last-child {border-right:none;}
.mobile-bottom-nav .nav-item {display:flex;flex-direction:column;align-items:center;color:#fff;text-decoration:none;font-size:0.7rem;padding:7px 5px;}
.mobile-bottom-nav .nav-item i {font-size:1.2rem;margin-bottom:3px;}
.mobile-bottom-nav .nav-item.active {color:#002B5B;}
@media (max-width:768px) {body {padding-bottom:60px;}
}
.top-nav {background:#fff;padding:10px 20px;box-shadow:0 2px 4px rgba(0,0,0,0.1);}
.right-section {display:flex;gap:20px;align-items:center;}
footer {background:#f8f9fa;padding:20px 0;text-align:center;margin-top:50px;}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 5px;
}

.quantity-display {
    min-width: 40px;
    text-align: center;
    padding: 4px 8px;
}

.quantity-control button {
    width: 24px;
    height: 24px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    line-height: 1;
    border: 1px solid #dee2e6;
    background-color: #fff;
}

.quantity-control button:hover {
    background-color: #f8f9fa;
    color:#000;
}

.quantity-control button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}