:root {
    --s3-primary: #1E1F20;
    --s3-secondary: #F7F7F7;
    --s3-accent: #f97316;
    --s3-accent-dark: #ea580c;
    --s3-gray: #6B7280;
    --s3-light-gray: #E5E7EB;
    --s3-white: #ffffff;
    --s3-red: #DC2626;
    --s3-green: #16A34A;
    --s3-yellow: #D97706;
    --s3-font-family: 'Inter', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--s3-font-family);
    color: var(--s3-primary);
    background-color: var(--s3-white);
    line-height: 1.6;
}

.s3-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .s3-container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .s3-container {
        padding: 0 12px;
    }
}

.s3-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.s3-main {
    flex: 1;
}

.s3-announcement-bar {
    background-color: var(--s3-primary);
    color: var(--s3-white);
    padding: 12px 0;
    text-align: center;
    font-size: 14px;
    overflow: hidden;
}

.s3-announcement-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.s3-announcement-divider {
    color: rgba(255, 255, 255, 0.3);
}

.s3-header {
    background-color: var(--s3-white);
    border-bottom: 1px solid var(--s3-light-gray);
    position: sticky;
    top: 0;
    z-index: 100;
}

.s3-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
}

@media (max-width: 768px) {
    .s3-header-inner {
        padding: 12px 16px;
    }
}

.s3-header-left,
.s3-header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.s3-icon-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--s3-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s;
    position: relative;
}

.s3-icon-btn:hover {
    background-color: var(--s3-secondary);
}

.s3-cart-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background-color: var(--s3-accent);
    color: var(--s3-white);
    font-size: 11px;
    font-weight: 600;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
}

.s3-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--s3-primary);
}

.s3-logo a {
    color: inherit;
    text-decoration: none;
}

.s3-search-box {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--s3-white);
    padding: 20px;
    border-bottom: 1px solid var(--s3-light-gray);
    display: none;
    z-index: 90;
}

.s3-search-box.active {
    display: block;
}

.s3-search-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 2px solid var(--s3-light-gray);
    border-radius: 8px;
    padding: 8px 16px;
}

.s3-search-form i {
    color: var(--s3-gray);
}

.s3-search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
}

.s3-search-close {
    background: none;
    border: none;
    color: var(--s3-gray);
    cursor: pointer;
    padding: 8px;
}

.s3-nav {
    background-color: var(--s3-white);
    border-bottom: 1px solid var(--s3-light-gray);
    overflow: visible;
    position: relative;
    z-index: 100;
}

.s3-nav-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
    overflow: visible;
}

.s3-nav-list {
    list-style: none;
    display: flex;
    gap: 24px;
    padding: 16px 0;
    overflow-x: auto;
    scrollbar-width: none;
    overflow: visible;
}

.s3-nav-list::-webkit-scrollbar {
    display: none;
}

.s3-nav-link {
    text-decoration: none;
    color: var(--s3-primary);
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}

.s3-nav-link:hover {
    color: var(--s3-accent);
}

.s3-nav-item.current .s3-nav-link {
    color: var(--s3-accent);
}

.s3-nav-item.has-children {
    position: relative;
}

.s3-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--s3-white);
    border: 1px solid var(--s3-light-gray);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    display: none !important;
    z-index: 9999;
    padding: 8px 0;
}

.s3-nav-item.has-children:hover .s3-dropdown,
.s3-nav-item.has-children:focus-within .s3-dropdown {
    display: block !important;
}

.s3-dropdown-item {
    padding: 12px 16px;
    color: var(--s3-primary);
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.s3-dropdown-item:hover {
    background-color: var(--s3-secondary);
}

/* 一级下拉菜单中的链接样式 */
.s3-dropdown > a.s3-dropdown-item {
    color: var(--s3-primary);
    text-decoration: none;
}

.s3-dropdown > a.s3-dropdown-item:hover {
    background-color: var(--s3-secondary);
    color: var(--s3-accent);
}

/* 一级下拉菜单中有子菜单的项目 */
.s3-dropdown > .s3-dropdown-item.has-submenu {
    position: relative;
    cursor: pointer;
}

.s3-dropdown > .s3-dropdown-item.has-submenu > a {
    color: var(--s3-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.s3-dropdown > .s3-dropdown-item.has-submenu > a:hover {
    color: var(--s3-accent);
}

.s3-dropdown > .s3-dropdown-item.has-submenu > a i {
    font-size: 10px;
    margin-left: 8px;
    color: var(--s3-gray);
}

/* 二级下拉菜单（子菜单） */
.s3-dropdown-submenu {
    position: absolute;
    top: 0;
    left: 100%;
    background-color: var(--s3-white);
    border: 1px solid var(--s3-light-gray);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    display: none !important;
    z-index: 10000;
    padding: 8px 0;
    margin-top: -8px;
}

.s3-dropdown-item.has-submenu:hover .s3-dropdown-submenu,
.s3-dropdown-item.has-submenu:focus-within .s3-dropdown-submenu {
    display: block !important;
}

/* 二级下拉菜单中的链接 */
.s3-dropdown-submenu > .s3-dropdown-subitem {
    padding: 12px 16px;
    color: var(--s3-primary);
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.s3-dropdown-submenu > .s3-dropdown-subitem:hover {
    background-color: var(--s3-secondary);
    color: var(--s3-accent);
}

@media (max-width: 768px) {
    .s3-nav {
        display: none;
    }
}

.s3-mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 200;
    display: none;
}

.s3-mobile-overlay.active {
    display: block;
}

.s3-mobile-menu {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background-color: var(--s3-white);
    z-index: 300;
    transition: left 0.3s;
    display: flex;
    flex-direction: column;
}

.s3-mobile-menu.active {
    left: 0;
}

.s3-mobile-close {
    padding: 16px;
    display: flex;
    justify-content: flex-end;
}

.s3-mobile-menu-title {
    padding: 0 16px 16px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 1px solid var(--s3-light-gray);
}

.s3-mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    flex: 1;
}

.s3-mobile-menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    color: var(--s3-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--s3-light-gray);
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.2s;
    background-color: var(--s3-white);
}

.s3-mobile-menu-link:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.s3-mobile-menu-link-text {
    flex: 1;
    color: var(--s3-primary);
    text-decoration: none;
}

.s3-mobile-menu-link-text:hover {
    color: var(--s3-accent);
}

.s3-mobile-menu-toggle {
    background: none;
    border: none;
    color: var(--s3-gray);
    cursor: pointer;
}

.s3-mobile-chevron {
    transition: transform 0.3s;
}

.s3-mobile-menu-link.open .s3-mobile-chevron {
    transform: rotate(180deg);
}

.s3-mobile-submenu {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: #f9fafb;
}

.s3-mobile-submenu.active {
    display: block;
}

.s3-mobile-submenu > li {
    border-bottom: 1px solid var(--s3-light-gray);
}

.s3-mobile-submenu > li > a {
    display: block;
    padding: 14px 16px 14px 24px;
    color: var(--s3-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
    background-color: #f9fafb;
}

.s3-mobile-submenu > li > a:hover {
    background-color: #f3f4f6;
    color: var(--s3-accent);
}

.s3-mobile-submenu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 14px 24px;
    color: var(--s3-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    background-color: #f9fafb;
}

.s3-mobile-submenu-link:hover {
    background-color: #f3f4f6;
}

.s3-mobile-submenu-link .s3-mobile-menu-link-text {
    color: var(--s3-primary);
    text-decoration: none;
}

.s3-mobile-submenu-link .s3-mobile-menu-link-text:hover {
    color: var(--s3-accent);
}

.s3-mobile-sub-submenu {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: #f3f4f6;
}

.s3-mobile-sub-submenu.active {
    display: block;
}

.s3-mobile-sub-submenu > li {
    border-bottom: 1px solid var(--s3-light-gray);
}

.s3-mobile-sub-submenu > li > a {
    display: block;
    padding: 12px 16px 12px 40px;
    color: var(--s3-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    transition: background-color 0.2s;
    background-color: #f3f4f6;
}

.s3-mobile-sub-submenu > li > a:hover {
    background-color: #e5e7eb;
    color: var(--s3-accent);
}

.s3-marquee {
    background-color: var(--s3-secondary);
    padding: 12px 0;
    overflow: hidden;
}

.s3-marquee-track {
    display: flex;
    animation: marquee 30s linear infinite;
}

.s3-marquee-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 32px;
    white-space: nowrap;
    color: var(--s3-gray);
    font-size: 14px;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.s3-hero {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--s3-primary) 0%, #374151 100%);
    overflow: hidden;
}

.s3-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHZpZXdCb3g9IjAgMCA2MCA2MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxnIGZpbGw9IiNmZmZmZmYiIGZpbGwtb3BhY2l0eT0iMC4wNSI+PGNpcmNsZSBjeD0iMzAiIGN5PSIzMCIgcj0iMiIvPjwvZz48L2c+PC9zdmc+') repeat;
    opacity: 0.3;
}

@media (max-width: 768px) {
    .s3-hero {
        height: 400px;
    }
}

.s3-hero-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
    max-width: 800px;
}

.s3-hero-tag {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--s3-accent);
    color: var(--s3-white);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 20px;
    margin-bottom: 24px;
}

.s3-hero-inner h1 {
    font-size: 56px;
    font-weight: 700;
    color: var(--s3-white);
    margin-bottom: 16px;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .s3-hero-inner h1 {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .s3-hero-inner h1 {
        font-size: 28px;
    }
}

.s3-hero-inner p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    .s3-hero-inner p {
        font-size: 16px;
    }
}

.s3-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.s3-btn-primary {
    background-color: var(--s3-white);
    color: var(--s3-primary);
}

.s3-btn-primary:hover {
    background-color: transparent;
    color: var(--s3-white);
    border-color: var(--s3-white);
}

.s3-btn-outline {
    background-color: transparent;
    color: var(--s3-white);
    border-color: var(--s3-white);
}

.s3-btn-outline:hover {
    background-color: var(--s3-white);
    color: var(--s3-primary);
}

.s3-collection-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 80px 24px;
    max-width: 1440px;
    margin: 0 auto;
    align-items: center;
}

@media (max-width: 968px) {
    .s3-collection-banner {
        grid-template-columns: 1fr;
        padding: 50px 16px;
    }
}

.s3-collection-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--s3-primary);
    margin-bottom: 16px;
}

.s3-collection-text p {
    font-size: 16px;
    color: var(--s3-gray);
    margin-bottom: 24px;
    line-height: 1.6;
}

.s3-collection-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 12px;
}

.s3-collection-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.s3-page-title {
    background-color: var(--s3-secondary);
    padding: 40px 24px;
}

.s3-page-title h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--s3-primary);
    margin-bottom: 16px;
}

.s3-breadcrumb {
    font-size: 14px;
    color: var(--s3-gray);
}

.s3-breadcrumb a {
    color: var(--s3-gray);
    text-decoration: none;
}

.s3-breadcrumb a:hover {
    color: var(--s3-accent);
}

.s3-section {
    padding: 80px 0;
}

@media (max-width: 768px) {
    .s3-section {
        padding: 50px 0;
    }
}

.s3-heading {
    font-size: 32px;
    font-weight: 700;
    color: var(--s3-primary);
    text-align: center;
    margin-bottom: 12px;
}

.s3-subheading {
    font-size: 16px;
    color: var(--s3-gray);
    text-align: center;
    margin-bottom: 48px;
}

.s3-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1200px) {
    .s3-categories {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .s3-categories {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .s3-categories {
        grid-template-columns: 1fr;
    }
}

.s3-category-card {
    position: relative;
    aspect-ratio: 1;
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
}

.s3-category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.s3-category-card:hover img {
    transform: scale(1.1);
}

.s3-category-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--s3-white);
}

.s3-category-label h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.s3-category-label span {
    font-size: 13px;
    opacity: 0.8;
}

.s3-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1200px) {
    .s3-product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .s3-product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .s3-product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

.s3-product-card {
    background-color: var(--s3-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.s3-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.s3-product-card-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--s3-secondary);
}

.s3-product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.s3-product-card:hover .s3-product-card-image img {
    transform: scale(1.05);
}

.s3-product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 12px;
    background-color: var(--s3-red);
    color: var(--s3-white);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 20px;
}

.s3-hot-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    background-color: var(--s3-yellow);
    color: var(--s3-white);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 20px;
}

.s3-product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.s3-product-card:hover .s3-product-overlay {
    opacity: 1;
}

.s3-quick-add {
    padding: 12px 24px;
    background-color: var(--s3-white);
    color: var(--s3-primary);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.s3-quick-add:hover {
    background-color: var(--s3-accent);
    color: var(--s3-white);
}

.s3-product-info {
    padding: 16px;
}

.s3-product-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--s3-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.s3-product-title a {
    color: inherit;
    text-decoration: none;
}

.s3-product-title a:hover {
    color: var(--s3-accent);
}

.s3-product-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.s3-product-price span {
    font-size: 18px;
    font-weight: 700;
    color: var(--s3-accent);
}

.s3-price-compare {
    font-size: 14px !important;
    color: var(--s3-gray) !important;
    text-decoration: line-through;
    font-weight: 400 !important;
}

.s3-features {
    background-color: var(--s3-primary);
}

.s3-features .s3-heading,
.s3-features .s3-subheading {
    color: var(--s3-white);
}

.s3-features .s3-subheading {
    opacity: 0.7;
}

.s3-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .s3-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .s3-features-grid {
        grid-template-columns: 1fr;
    }
}

.s3-feature-card {
    text-align: center;
    padding: 32px 24px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.s3-feature-card:hover {
    transform: translateY(-4px);
}

.s3-feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--s3-accent);
    border-radius: 50%;
    font-size: 24px;
}

.s3-feature-icon i {
    color: var(--s3-white);
}

.s3-feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--s3-white);
    margin-bottom: 8px;
}

.s3-feature-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.s3-newsletter {
    background: linear-gradient(135deg, var(--s3-accent) 0%, var(--s3-accent-dark) 100%);
    padding: 80px 0;
}

@media (max-width: 768px) {
    .s3-newsletter {
        padding: 50px 0;
    }
}

.s3-newsletter-heading {
    color: var(--s3-white) !important;
}

.s3-newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
}

@media (max-width: 576px) {
    .s3-newsletter-form {
        flex-direction: column;
    }
}

.s3-newsletter-form input[type="email"] {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}

.s3-newsletter-form input[type="email"]:focus {
    border-color: var(--s3-white);
}

.s3-newsletter-form .s3-btn {
    padding: 16px 32px;
    background-color: var(--s3-primary);
    color: var(--s3-white);
    border: none;
}

.s3-newsletter-form .s3-btn:hover {
    background-color: #000;
}

.s3-footer {
    background-color: var(--s3-primary);
    color: var(--s3-white);
    padding: 60px 0 30px;
}

.s3-footer-top {
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.s3-footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .s3-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .s3-footer-grid {
        grid-template-columns: 1fr;
    }
}

.s3-footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.s3-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.s3-footer-links li {
    margin-bottom: 12px;
}

.s3-footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.s3-footer-links a:hover {
    color: var(--s3-white);
}

.s3-footer-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
}

.s3-footer-newsletter {
    display: flex;
    gap: 8px;
}

.s3-footer-newsletter input[type="email"] {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--s3-white);
    font-size: 14px;
    outline: none;
}

.s3-footer-newsletter input[type="email"]::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.s3-footer-newsletter button {
    padding: 12px 16px;
    background-color: var(--s3-accent);
    color: var(--s3-white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
}

.s3-footer-newsletter button:hover {
    background-color: var(--s3-accent-dark);
}

.s3-footer-bottom {
    padding-top: 30px;
}

.s3-footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.s3-footer-copyright p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.s3-footer-payment {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.s3-footer-payment i {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
}

.s3-notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--s3-green);
    color: var(--s3-white);
    padding: 16px 24px;
    border-radius: 8px;
    display: none;
    align-items: center;
    gap: 12px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.s3-notification.show {
    display: flex;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.s3-notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

/* ========== 横幅样式示例 START ========== */

/* 示例1: 单张大图横幅 */
.s3-banner-single {
    width: 100%;
    padding: 40px 0;
}

.s3-banner-single-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 0 24px;
}

.s3-banner-single-text {
    flex: 1;
    min-width: 280px;
}

.s3-banner-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--s3-accent);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.s3-banner-single-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--s3-text);
    margin-bottom: 16px;
}

.s3-banner-single-text p {
    font-size: 16px;
    color: #6B7280;
    line-height: 1.6;
    margin-bottom: 24px;
}

.s3-banner-single-img {
    flex: 1;
    min-width: 280px;
}

.s3-banner-single-img img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
}

/* 示例2: 两张图横排横幅 */
.s3-banner-two {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 24px;
    padding: 40px 24px;
}

.s3-banner-two-item {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: #f3f4f6;
}

.s3-banner-two-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s;
}

.s3-banner-two-item:hover img {
    transform: scale(1.05);
}

.s3-banner-two-text {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
}

.s3-banner-two-text h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.s3-banner-two-text p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 12px;
}

/* 示例3: 三张图横排横幅 */
.s3-banner-three {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 16px;
    padding: 40px 24px;
}

.s3-banner-three-item {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: #f3f4f6;
}

.s3-banner-three-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s;
}

.s3-banner-three-item:hover img {
    transform: scale(1.05);
}

.s3-banner-three-text {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    text-align: center;
}

.s3-banner-three-text h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.s3-banner-three-text p {
    font-size: 12px;
    opacity: 0.9;
    margin-bottom: 10px;
}

/* 示例4: 全宽大图横幅 */
.s3-banner-fullwidth {
    width: 100%;
    height: 400px;
    background: url('https://images.unsplash.com/photo-1489987707025-afc232f7ea0f?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.s3-banner-fullwidth::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.s3-banner-fullwidth-text {
    position: relative;
    z-index: 1;
    color: #fff;
    padding: 0 24px;
}

.s3-banner-fullwidth-text h2 {
    font-size: 42px;
    margin-bottom: 16px;
}

.s3-banner-fullwidth-text p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 24px;
    max-width: 500px;
}

/* 示例5: 左图右文横幅 */
.s3-banner-split {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px 24px;
}

.s3-banner-split-img {
    flex: 1;
}

.s3-banner-split-img img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
}

.s3-banner-split-text {
    flex: 1;
    padding: 0 20px;
}

.s3-banner-split-text h2 {
    font-size: 32px;
    margin-bottom: 16px;
    color: var(--s3-text);
}

.s3-banner-split-text p {
    font-size: 16px;
    color: #6B7280;
    line-height: 1.6;
    margin-bottom: 24px;
}

.s3-banner-split-reverse {
    flex-direction: row-reverse;
}

/* 示例6: 三张卡片横幅 */
.s3-banner-cards {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 24px;
    padding: 40px 24px;
}

.s3-banner-card {
    flex: 1;
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.s3-banner-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.s3-banner-card-icon {
    width: 60px;
    height: 60px;
    background: #fff7ed;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: var(--s3-accent);
}

.s3-banner-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--s3-text);
    margin-bottom: 8px;
}

.s3-banner-card p {
    font-size: 14px;
    color: #6B7280;
}

/* 小按钮样式 */
.s3-btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* 响应式适配 */
@media (max-width: 900px) {
    .s3-banner-single-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .s3-banner-single-img {
        order: -1;
    }
    
    .s3-banner-single-text h2 {
        font-size: 28px;
    }
    
    .s3-banner-two {
        flex-direction: column;
    }
    
    .s3-banner-three {
        flex-direction: column;
    }
    
    .s3-banner-split {
        flex-direction: column;
        text-align: center;
    }
    
    .s3-banner-split-reverse {
        flex-direction: column;
    }
    
    .s3-banner-cards {
        flex-direction: column;
    }
    
    .s3-banner-fullwidth-text h2 {
        font-size: 32px;
    }
}

@media (max-width: 600px) {
    .s3-banner-single-text h2 {
        font-size: 24px;
    }
    
    .s3-banner-single-text p {
        font-size: 14px;
    }
    
    .s3-banner-two-item img {
        height: 200px;
    }
    
    .s3-banner-three-item img {
        height: 180px;
    }
    
    .s3-banner-fullwidth {
        height: 300px;
    }
    
    .s3-banner-fullwidth-text h2 {
        font-size: 24px;
    }
    
    .s3-banner-fullwidth-text p {
        font-size: 14px;
    }
    
    .s3-banner-split-text h2 {
        font-size: 24px;
    }
    
    .s3-banner-split-text p {
        font-size: 14px;
    }
}

/* ========== 横幅样式示例 END ========== */