:root {
    --primary-color: #ff4d6d;
    --secondary-color: #ff8fab;
    --accent-color: #ffc2d1;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --gray-light: #e9ecef;
    --gray-lighter: #f0f0f0;
    --gray-border: #dee2e6;
    --white-color: #ffffff;
    --success-color: #52c41a;
    --danger-color: #dc3545;
    --warning-color: #faad14;
    --info-color: #1677ff;
    --purple-color: #722ed1;
    --orange-color: #fd7e14;
    --blue-color: #0d6efd;
    --blue-light: #f0f7ff;
    --red-light: #ff4d4f;
    --shadow-color: rgba(0,0,0,0.1);
    --shadow-light: rgba(0,0,0,0.05);
    --body-bg: #f5f7fa;
}

html::-webkit-scrollbar,body::-webkit-scrollbar,.nav-body::-webkit-scrollbar{display:none;}
body {
    font-family: "Microsoft YaHei", sans-serif;
    overflow-x: hidden;
    background-color: var(--body-bg);
}
.navbar {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    padding: 0.45rem 1rem;
    height: 55px;
}
.navbar-brand {
    color: var(--white-color);
    font-weight: bold;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 6px;
}
.navbar-brand:hover {
    color: var(--white-color);
}
.nav-link {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    padding: 0.3rem 0.7rem;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}
.nav-link:hover {
    color: var(--white-color);
}
.navbar-toggler {
    border: none;
    color: var(--white-color);
    font-size: 1.25rem;
    padding: 0;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}
.search-circle {
    width: 28px;
    height: 28px;
    border-radius: 999px !important;
    background-color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 2px 8px var(--shadow-color);
    position: relative;
    z-index: 1;
    overflow: hidden;
}
.search-circle i {
    color: var(--primary-color);
    font-size: 0.8rem;
    transition: all 0.3s ease;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
}
.search-circle.active {
    width: 320px;
    height: 28px;
    border-radius: 999px !important;
    padding: 0 30px 0 10px;
}
.search-input {
    position: absolute;
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s ease 0.1s;
    pointer-events: none;
    left: 0;
    padding: 0 10px;
}
.search-circle.active .search-input {
    opacity: 1;
    pointer-events: all;
}

.user-dropdown {
    position: relative;
}
.user-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 160px;
    background: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-color);
    border: none;
    margin-top: 5px;
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1050;
}
.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown-item {
    padding: 10px 15px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}
.dropdown-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    padding-left: 20px;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1040;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.sidebar-overlay.active {
    display: block;
    opacity: 1;
}
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background-color: var(--white-color);
    z-index: 1050;
    transition: left 0.3s ease;
    box-shadow: 2px 0 10px var(--shadow-color);
    overflow-y: auto;
}
.sidebar.active {
    left: 0;
}
.sidebar-header {
    padding: 1.5rem 1rem;
    background-color: var(--primary-color);
    color: var(--white-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.sidebar-close {
    background: none;
    border: none;
    color: var(--white-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}
.sidebar-close:hover {
    transform: rotate(90deg);
}
.sidebar-menu {
    padding: 1rem 0;
}
.sidebar-menu-item {
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-color);
    text-decoration: none;
    transition: all 0.2s ease;
}
.sidebar-menu-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    padding-left: 25px;
}
.sidebar-menu-item i {
    width: 20px;
    text-align: center;
}

.hero-section {
    position: relative;
    padding: .5rem 0;
}
.hero-info-card {
    background: var(--white-color);
    border-radius: 16px;
    height: 100%;
    min-height: 400px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 4px 15px var(--shadow-light);
}
.hero-info-title {
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}
.hero-info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.9rem 0;
    border-bottom: 1px dashed var(--gray-border);
}
.hero-info-item:last-child {
    border-bottom: none;
}
.hero-info-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}
#heroCarousel {
    border-radius: 16px;
    overflow: hidden;
}
.carousel-item {
    height: 400px;
    background-color: var(--gray-border);
}
.carousel-item img {
    height: 100%;
    object-fit: cover;
}
.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.5);
    margin: 0 5px;
}
.carousel-indicators button.active {
    background-color: var(--white-color);
}
.carousel-control-prev,
.carousel-control-next {
    width: 45px;
    height: 45px;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0,0,0,0.3);
    border-radius: 50%;
    margin: 0 15px;
}
@media (max-width: 768px) {
    .carousel-item {
        height: 200px;
    }
    .hero-info-card {
        min-height: auto;
        margin-top: 1rem;
        padding: 1.5rem;
    }
    .search-circle.active {
        width: 240px;
    }
    .category-name {
        font-size: 0.8rem;
    }
}

section {
    border-radius: 0;
    margin-bottom: 0rem;
    overflow: hidden;
}
.container {
    max-width: 1200px !important;
}
.coupon-card {
    background: linear-gradient(135deg, var(--white-color), var(--light-color));
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px dashed var(--gray-border);
    position: relative;
    height: 100%;
}
.coupon-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
}
.coupon-header {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 14px 18px;
}
.coupon-price {
    font-size: 2rem;
    font-weight: bold;
}
.coupon-condition {
    font-size: 0.9rem;
    opacity: 0.9;
}
.coupon-body {
    padding: 18px;
}
.coupon-desc {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 10px;
}
.coupon-time {
    color: var(--gray);
    font-size: 0.8rem;
}
.coupon-btn {
    background-color: var(--secondary-color);
    color: var(--white-color);
    border: none;
    border-radius: 20px;
    padding: 7px 16px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}
.coupon-btn:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}
.red-envelope {
    background: linear-gradient(135deg, #ff3838, #ff4d4d);
    border-radius: 16px;
    padding: 25px;
    color: var(--white-color);
    text-align: center;
    box-shadow: 0 4px 15px rgba(255, 61, 61, 0.2);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
    height: 100%;
}
.red-envelope:hover {
    transform: translateY(-3px);
}
.envelope-amount {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 12px 0;
}
.envelope-desc {
    font-size: 0.95rem;
    opacity: 0.95;
}
.envelope-btn {
    background-color: var(--white-color);
    color: var(--primary-color);
    border: none;
    border-radius: 25px;
    padding: 9px 28px;
    font-weight: bold;
    margin-top: 18px;
    transition: transform 0.3s ease;
}
.envelope-btn:hover {
    transform: scale(1.05);
}
.product-card {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--white-color);
    height: 100%;
}
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
}
.product-img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}
.product-body {
    padding: 18px;
}
.product-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 42px;
}
.product-price {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
    margin-bottom: 6px;
}
.product-original {
    text-decoration: line-through;
    color: var(--gray);
    font-size: 0.9rem;
    margin-left: 8px;
}
.product-tag {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-right: 5px;
}
.product-sales {
    color: var(--gray);
    font-size: 0.8rem;
}
.category-item {
    text-align: center;
    padding: 15px 8px;
    transition: transform 0.3s ease;
}
.category-item:hover {
    transform: translateY(-3px);
}
.category-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}
.category-item:hover .category-icon {
    transform: scale(1.1);
}
.category-name {
    font-size: 0.9rem;
    color: var(--dark-color);
}
.article-card {
    background-color: var(--white-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-light);
    height: 100%;
    transition: transform 0.3s ease;
}
.article-card:hover {
    transform: translateY(-5px);
}
.article-img {
    height: 180px;
    object-fit: cover;
    width: 100%;
}
.article-body {
    padding: 18px;
}
.article-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-desc {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.8rem;
}
.section-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-color);
}
.section-title i {
    color: var(--primary-color);
}
.footer {
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 45px 0 20px;
    border-radius: 16px 16px 0 0;
}
.footer-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--accent-color);
}
.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-link:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}
.sidebar-menu-item[aria-expanded="true"] .bi-chevron-right {
    transform: rotate(90deg);
    transition: transform 0.3s;
}
.navbar-nav .nav-item{
    
    position: relative;
}
.navbar-nav .nav-item .index{
    
    display: none;
}

    .navbar-nav .nav-item:hover .index{
    position: absolute;
    left: 0;
    top: -12px;
    z-index: -1;
    display: block;
    width: 100%;
    height: 53px;
    background: rgba(100, 77, 109, 0.3);
}
           
.copyright {
    text-align: center;
    padding-top: 22px;
    margin-top: 35px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.copyright a{
    color: inherit;
    text-decoration: none;
}

.right-menu{
    position: fixed;
    bottom: 30px;
    right: 10px;
    width: 40px;
    height:auto;
    z-index: 9999;
}
.right-menu > div {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px var(--shadow-color);
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 5px;
}
.right-menu > .scroll-top{
    
    display: none;
}
.scroll-top.show {
    display: flex;
}
.scroll-top:hover {
    transform: scale(1.1);
}
a{
    text-decoration: none;
}

        /* ===== 1. 方式一：自定义响应式类 ===== */
        @media (min-width: 768px) {
            .rounded-md-2 { border-radius: 0.375rem !important; }
            .rounded-md-3 { border-radius: 0.5rem !important; }
            .rounded-md-4 { border-radius: 1rem !important; }
        }
        @media (min-width: 992px) {
            .rounded-lg-2 { border-radius: 0.375rem !important; }
            .rounded-lg-3 { border-radius: 0.5rem !important; }
            .rounded-lg-4 { border-radius: 1rem !important; }
            .rounded-lg-5 { border-radius: 1.5rem !important; }
        }
        @media (min-width: 1200px) {
            .rounded-xl-3 { border-radius: 0.5rem !important; }
            .rounded-xl-4 { border-radius: 1rem !important; }
            .rounded-xl-5 { border-radius: 1.5rem !important; }
        }