/* 基础样式 */
:root {
    --primary-color: #c62828;
    --primary-dark: #8e0000;
    --primary-light: #ff5f52;
    --secondary-color: #ffb300;
    --secondary-light: #ffe54c;
    --text-color: #333;
    --light-text: #fff;
    --gray-bg: #f5f5f5;
    --dark-bg: #222;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --cart-bg: #fff;
    --header-height: 80px;
    --category-nav-height: 60px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    background: linear-gradient(90deg, var(--primary-color) 60%, var(--primary-light) 100%);
    color: var(--light-text);
    padding: 18px 0 12px 0;
    box-shadow: 0 4px 16px 0 rgba(198,40,40,0.12);
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background 0.4s;
    height: var(--header-height);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo h1 {
    font-size: 2.2rem;
    margin-bottom: 2px;
    font-weight: 900;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.logo p {
    font-size: 1.08rem;
    font-style: italic;
    color: #ffe0e0;
    letter-spacing: 1px;
    margin-left: 2px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 18px;
}

.theme-selector {
    margin-right: 10px;
}

.theme-button {
    background: rgba(255,255,255,0.15);
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.theme-button:hover {
    background: rgba(255,255,255,0.28);
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}

.cart-icon {
    position: relative;
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: #fff;
    border: 2px solid #fff3;
    box-shadow: 0 2px 8px rgba(198,40,40,0.10);
    transition: background-color 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cart-icon:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(198,40,40,0.16);
}

/* 购物车图标动画效果 */
.cart-icon.cart-animate {
    animation: cartBounce 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes cartBounce {
    0%   { transform: scale(1);}
    20%  { transform: scale(1.18);}
    40%  { transform: scale(0.92);}
    60%  { transform: scale(1.08);}
    80%  { transform: scale(0.98);}
    100% { transform: scale(1);}
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--secondary-color);
    border: 2px solid #fff;
    color: white;
    border-radius: 50%;
    min-width: 18px;
    height: 18px;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.count-updated {
    animation: countUpdate 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 分类导航 */
.category-nav {
    background-color: var(--card-bg);
    box-shadow: 0 2px 5px var(--shadow-color);
    position: sticky;
    top: var(--header-height);
    z-index: 90;
    height: var(--category-nav-height);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

.category-nav.active {
    box-shadow: 0 3px 10px var(--shadow-color);
}

.category-nav .container {
    position: relative;
    height: 100%;
}

.scroll-container {
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
}

.scroll-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.nav-tabs {
    display: flex;
    min-width: max-content;
    height: 100%;
    align-items: center;
}

.nav-tab {
    position: relative;
    padding: 8px 20px;
    margin: 0 5px;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 20px;
    font-weight: 500;
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.nav-tab:first-child {
    margin-left: 0;
}

.nav-tab:hover {
    background-color: var(--secondary-light);
}

.nav-tab.active {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--light-text);
    border-radius: 50%;
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--light-text);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 2;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: background-color var(--transition-speed);
}

.nav-arrow.left {
    left: 5px;
}

.nav-arrow.right {
    right: 5px;
}

/* 新增: 分类标题 */
.category-section {
    padding-top: 40px;
    margin-bottom: 30px;
    scroll-margin-top: calc(var(--header-height) + var(--category-nav-height) + 20px);
}

.category-section:first-child {
    padding-top: 20px;
}

.category-title {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* 菜单容器修改 */
.menu-container {
    padding: 0 0 30px 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    transition: opacity 0.3s;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s, transform 0.3s;
    opacity: 0;
    transform: translateY(20px);
    z-index: 50;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
}

/* 新增: 滚动进度条 */
.scroll-progress-container {
    position: fixed;
    top: calc(var(--header-height) + var(--category-nav-height));
    left: 0;
    width: 100%;
    height: 3px;
    background-color: transparent;
    z-index: 89;
}

.scroll-progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    transition: width 0.2s;
}

/* 菜单项目卡片调整 */
.menu-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s, background-color var(--transition-speed);
}

.menu-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.menu-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    position: relative;
    overflow: hidden;
    background-color: #f8f8f8;
}

.menu-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
    backface-visibility: hidden;
    will-change: transform;
    /* 禁止图片在点击时被选中或拖动 */
    user-select: none;
    -webkit-user-drag: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.menu-item:hover .menu-img img {
    transform: scale(1.05);
}

.item-code {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: var(--primary-color);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
}

.menu-info {
    padding: 15px;
}

.item-name {
    display: flex;
    flex-direction: column;
    margin-bottom: 10px;
}

.name-cn {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.name-en {
    font-size: 0.9rem;
    color: #666;
}

.item-price {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.add-to-cart {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    transition: background-color 0.3s;
    position: relative;
    overflow: hidden;
}

.add-to-cart:before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.add-to-cart:active:before {
    width: 300px;
    height: 300px;
}

.add-to-cart.clicked {
    transform: scale(0.95);
}

.add-to-cart:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* 商品数量显示 */
.item-count {
    background-color: rgba(198,40,40,0.1);
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 12px;
    margin: 0 4px;
}

/* 购物车操作区域 */
.cart-actions {
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.02);
}

/* 清空购物车按钮 */
.clear-cart-btn {
    background: none;
    border: none;
    color: #777;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.clear-cart-btn:hover {
    background-color: rgba(255, 59, 48, 0.1);
    color: #ff3b30;
}

.clear-cart-btn:active {
    transform: scale(0.95);
}

.clear-cart-btn .material-icons {
    font-size: 18px;
}

/* 购物车侧边栏 - 增强版 */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 350px;
    height: 100%;
    background: #fff;
    z-index: 300;
    box-shadow: -6px 0 24px 0 rgba(0,0,0,0.18);
    transition: right 0.3s cubic-bezier(.77,0,.18,1);
    display: flex;
    flex-direction: column;
    border-radius: 16px 0 0 16px;
}

.cart-sidebar.active {
    right: 0;
}

/* 购物车标题栏 - 增强版 */
.cart-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 22px 24px 18px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 16px 0 0 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border-bottom: none;
}

.cart-header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.13);
}

.cart-header .material-icons {
    font-size: 24px;
}

.cart-header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.clear-cart-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.16);
    color: #fff;
    border: none;
    border-radius: 18px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}

.clear-cart-btn:hover {
    background: rgba(255,255,255,0.28);
    color: #ffe54c;
    transform: translateY(-2px);
}

.close-cart {
    background: rgba(255,255,255,0.16);
    border: none;
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}

.close-cart:hover {
    background: rgba(255,255,255,0.28);
    color: #ffe54c;
    transform: rotate(90deg);
}

/* 购物车内容区域 */
.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 18px 14px 10px 14px;
    background: #fafbfc;
    /* 移除动画相关属性 */
    scrollbar-width: thin;
    scrollbar-color: #eee #f5f5f5;
}

.cart-items::-webkit-scrollbar {
    width: 6px;
}
.cart-items::-webkit-scrollbar-thumb {
    background: #eee;
    border-radius: 8px;
}
.cart-items::-webkit-scrollbar-track {
    background: #f5f5f5;
    border-radius: 8px;
}

/* 购物车项目卡片 */
.cart-item {
    background: #fff;
    border-radius: 12px;
    padding: 13px 10px 13px 10px;
    margin-bottom: 16px;
    display: flex;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid #f2f2f2;
    /* 移除动画相关属性 */
    transition: box-shadow 0.18s;
}

.cart-item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.11);
}

.cart-item-img {
    width: 64px;
    height: 64px;
    border-radius: 8px;
    overflow: hidden;
    margin-right: 14px;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    border: 1px solid #f2f2f2;
}

.cart-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.18s;
}

.cart-item:hover .cart-item-img img {
    transform: scale(1.06);
}

.cart-item-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 3px;
    color: #222;
    font-size: 1.05rem;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-price {
    font-size: 0.97rem;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-weight: 600;
}

.cart-item-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    gap: 10px;
}

/* 数量控制器 */
.quantity-control {
    display: flex;
    align-items: center;
    background: #f5f5f5;
    border-radius: 18px;
    padding: 2px 4px;
    border: none;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    gap: 0;
}

.quantity-btn {
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    color: #555;
    font-size: 1.2rem;
    position: relative;
    z-index: 1;
    transition: color 0.14s, background 0.14s, transform 0.14s;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    outline: none;
}

.quantity-btn.decrease { color: #f44336; }
.quantity-btn.increase { color: #43a047; }

.quantity-btn:active {
    background: #eee;
    transform: scale(0.92);
}

.quantity-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px #ffe54c;
}

.quantity {
    width: 36px;
    height: 28px;
    border: none;
    background: transparent;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    color: #333;
    pointer-events: none;
    outline: none;
}

/* 删除按钮 */
.remove-item {
    color: #bbb;
    cursor: pointer;
    width: 32px;
    height: 32px;
    background: #f7f7f7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.18s, background 0.18s, transform 0.18s;
    font-size: 1.2rem;
    margin-left: 4px;
}

.remove-item:hover {
    color: #f44336;
    background: #ffeaea;
    transform: rotate(15deg) scale(1.08);
}

.remove-item .material-icons {
    font-size: 20px;
}

/* 购物车总结区域 */
.cart-summary {
    background: linear-gradient(to bottom, #f9f9f9, #fff);
    padding: 22px 20px 18px 20px;
    border-top: 1px solid #f2f2f2;
    border-radius: 0 0 0 16px;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.04);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 14px;
    margin-bottom: 14px;
    border-bottom: 2px dashed #f2f2f2;
}

.cart-total span:first-child {
    font-size: 1.08rem;
    color: #555;
}

#cart-total-price {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

/* 购物车按钮组 */
.cart-buttons {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.continue-shopping-btn {
    flex: 1;
    padding: 12px 0;
    background: linear-gradient(135deg, #78909c, #546e7a);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.22s, transform 0.18s, box-shadow 0.18s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
}

.continue-shopping-btn:hover {
    background: linear-gradient(135deg, #607d8b, #37474f);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 12px rgba(0,0,0,0.13);
}

.continue-shopping-btn .material-icons {
    font-size: 18px;
}

.checkout-btn {
    flex: 1;
    padding: 12px 0;
    background: linear-gradient(135deg, var(--secondary-color), #ff8f00);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.22s, transform 0.18s, box-shadow 0.18s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.13);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
}

.checkout-btn:hover {
    background: linear-gradient(135deg, #ffb300, #ff6f00);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 12px rgba(0,0,0,0.18);
}

.checkout-btn .material-icons {
    font-size: 18px;
}

/* 空购物车状态 */
.empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px 40px 20px;
    color: #aaa;
    text-align: center;
    height: 100%;
    min-height: 220px;
    background: #fafbfc;
    border-radius: 12px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.04);
}

.empty-cart span.material-icons {
    font-size: 60px;
    color: #eee;
    margin-bottom: 18px;
    animation: floatingIcon 2.8s ease-in-out infinite;
}

@keyframes floatingIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-cart p:first-of-type {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: #888;
}

.empty-cart p:last-of-type {
    font-size: 0.95rem;
    color: #bbb;
    max-width: 80%;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.menu-item {
    animation: slideUp 0.5s ease-out;
}

/* 购物车侧边栏 */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 200;
    display: none;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 350px;
    height: 100%;
    background: #fff;
    z-index: 300;
    box-shadow: -6px 0 24px 0 rgba(0,0,0,0.18);
    transition: right 0.3s cubic-bezier(.77,0,.18,1);
    display: flex;
    flex-direction: column;
    border-radius: 16px 0 0 16px;
}

.cart-header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.cart-header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
}

.close-cart {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.cart-item {
    display: flex;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.cart-item-img {
    width: 80px;
    height: 80px;
    border-radius: 5px;
    overflow: hidden;
    margin-right: 15px;
    flex-shrink: 0;
}

.cart-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-details {
    flex: 1;
}

.cart-item-name {
    font-weight: bold;
    margin-bottom: 5px;
    line-height: 1.3;
}

.cart-item-price {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cart-item-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quantity-control {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.quantity-btn {
    width: 30px;
    height: 30px;
    background-color: var(--gray-bg);
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: background-color 0.2s;
}

.quantity-btn:hover {
    background-color: #e0e0e0;
}

.quantity {
    width: 40px;
    height: 30px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
}

.remove-item {
    color: #888;
    cursor: pointer;
    transition: color 0.2s;
}

.remove-item:hover {
    color: var(--primary-color);
}

.cart-summary {
    background-color: #f9f9f9;
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 15px;
}

.checkout-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.checkout-btn:hover {
    background-color: var(--primary-dark);
}

.empty-cart {
    text-align: center;
    padding: 40px 0;
    color: #888;
}

.empty-cart span.material-icons {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 400;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border-radius: 10px;
    width: 80%;
    max-width: 600px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    animation: modalOpen 0.4s;
    height: fit-content;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.close-modal {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--text-color);
}

.modal-body {
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    height: 80px;
    resize: vertical;
}

.order-summary {
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-color);
}

.order-item-name {
    font-weight: 500;
}

.order-item-price {
    color: var(--primary-color);
    font-weight: bold;
}

/* 订单类型选择 */
.order-type-options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 5px;
}

.order-type-option {
    flex: 1;
    min-width: 120px;
}

.order-type-option input[type="radio"] {
    display: none;
}

.order-type-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px;
    background-color: #f5f5f5;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid transparent;
}

.order-type-label .material-icons {
    font-size: 24px;
    margin-bottom: 5px;
    color: #777;
}

.order-type-option input[type="radio"]:checked + .order-type-label {
    background-color: rgba(var(--primary-rgb), 0.1);
    border-color: var(--primary-color);
}

.order-type-option input[type="radio"]:checked + .order-type-label .material-icons {
    color: var(--primary-color);
}

/* 自定义确认对话框样式 */
.custom-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.custom-dialog.show {
    opacity: 1;
    pointer-events: auto;
}

.dialog-content {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    overflow: hidden;
    animation: dialogPop 0.3s forwards;
}

@keyframes dialogPop {
    0% { transform: scale(0.9); }
    40% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.dialog-header {
    padding: 18px 20px 12px;
    border-bottom: 1px solid #eee;
}

.dialog-header h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.dialog-body {
    padding: 20px;
    font-size: 1rem;
    color: #444;
    line-height: 1.5;
}

.dialog-footer {
    padding: 10px 20px 20px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.dialog-btn {
    padding: 8px 20px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.dialog-btn.cancel-btn {
    background-color: #f5f5f5;
    color: #444;
}

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

.dialog-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.dialog-btn:active {
    transform: translateY(1px);
}

/* 购物车清空动画增强 */
@keyframes cartEmpty {
    0% { transform: translateX(0); }
    10% { transform: translateX(-8px) rotate(-10deg); }
    20% { transform: translateX(8px) rotate(10deg); }
    30% { transform: translateX(-8px) rotate(-10deg); }
    40% { transform: translateX(8px) rotate(10deg); }
    50% { transform: translateX(-8px) rotate(-10deg); }
    60% { transform: translateX(8px) rotate(10deg); }
    70% { transform: translateX(-8px) rotate(-10deg); }
    80% { transform: translateX(8px) rotate(10deg); }
    90% { transform: translateX(-4px) rotate(-5deg); }
    100% { transform: translateX(0); }
}

.cart-empty {
    animation: cartEmpty 0.7s ease;
}

/* 购物车物品删除动画 */
@keyframes itemRemoving {
    0% { transform: translateX(0); opacity: 1; }
    30% { transform: translateX(10px); }
    60% { transform: translateX(-50px); opacity: 0.3; }
    100% { transform: translateX(-80px); opacity: 0; }
}

.item-removing {
    animation: itemRemoving 0.5s forwards;
    pointer-events: none;
}

/* 按钮点击动画 */
.btn-clicked {
    transform: scale(0.95);
}

/* 增减按钮动画 */
.quantity-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.2s;
}

.quantity-btn:active {
    transform: scale(0.9);
}

/* 波纹效果 */
.ripple {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: ripple 0.6s linear;
    top: 50%;
    left: 50%;
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.8;
    }
    100% {
        width: 150px;
        height: 150px;
        opacity: 0;
    }
}

/* 删除按钮动画 */
.remove-item {
    transition: all 0.2s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.remove-item:hover {
    color: var(--primary-color);
}

.remove-item:active {
    transform: scale(0.9);
}

/* 数量控制样式优化 */
.quantity-control {
    display: flex;
    align-items: center;
    border-radius: 20px;
    background-color: #f5f5f5;
    padding: 2px;
    width: fit-content;
    margin-right: 10px;
}

.quantity-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.05);
    border: none;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #444;
}

.quantity-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.quantity-btn.decrease {
    color: #e53935;
}

.quantity-btn.increase {
    color: #43a047;
}

.quantity {
    width: 30px;
    border: none;
    background: transparent;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    margin-top: 8px;
}

/* 菜单项图片容器相对定位，用于放置价格和购物车按钮 */
.menu-img {
    position: relative;
    overflow: hidden;
}

/* 价格标签样式 - 右上角 */
.item-price-top {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 3px 8px;
    border-radius: 20px;
    font-weight: bold;
}

/* 购物车按钮样式 - 右下角 */
.add-to-cart-icon {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.add-to-cart-icon:hover {
    transform: scale(1.1);
    background-color: var(--primary-color);
    color: white;
}

/* 单行文本省略样式 */
.single-line-ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* 点击动画效果 */
.add-to-cart-icon.clicked {
    animation: pulse 0.5s;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* 菜品详情弹窗 */
.item-detail-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.item-detail-popup.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    position: relative;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    width: 90%;
    max-width: 500px;
    border-radius: 10px;
    overflow: hidden;
    max-height: 90vh;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.item-detail-popup.active .popup-content {
    transform: scale(1);
}

.close-popup {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.8);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.popup-image {
    position: relative;
    width: 100%;
    height: 250px;
}

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

.popup-code {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.popup-info {
    padding: 20px;
}

.popup-info h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--text-color);
}

.popup-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.popup-price {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.popup-add-to-cart {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    width: 100%;
}

.popup-add-to-cart:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.popup-add-to-cart.clicked {
    animation: pulse 0.5s;
}

/* 菜品详情弹窗 - 特殊要求输入 */
.popup-special-wrapper {
    margin-bottom: 16px;
}
.popup-special-label {
    font-size: 1rem;
    color: #c62828;
    font-weight: 500;
    margin-bottom: 4px;
    display: block;
}
.popup-special-input {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 1rem;
    margin-bottom: 8px;
    resize: vertical;
}
.popup-special-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.popup-special-quick-btn {
    background: #ffeaea;
    color: #c62828;
    border: none;
    border-radius: 16px;
    padding: 4px 14px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.popup-special-quick-btn:hover {
    background: #c62828;
    color: #fff;
}

/* 响应式设计 */
/* 笔记本电脑和大屏幕 */
@media (min-width: 1200px) {
    .menu-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 中等屏幕设备 (平板电脑) */
@media (min-width: 768px) and (max-width: 1199px) {
    .menu-container {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .logo h1 {
        font-size: 1.6rem;
    }
    
    .category-title {
        font-size: 1.6rem;
    }
}

/* iPad和小型平板电脑 */
@media (min-width: 576px) and (max-width: 767px) {
    .menu-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .logo h1 {
        font-size: 1.4rem;
    }
    
    .category-title {
        font-size: 1.4rem;
    }
    
    .category-navigation {
        flex-direction: row;
    }
    
    .category-nav-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}

/* 手机设备 */
@media (max-width: 575px) {
    .menu-container {
        grid-template-columns: 1fr;
    }
    
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .logo p {
        font-size: 0.8rem;
    }
    
    .category-title {
        font-size: 1.3rem;
    }
    
    .category-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .category-nav-btn {
        width: 100%;
        justify-content: center;
    }
    
    .nav-tab {
        padding: 6px 15px;
        font-size: 0.9rem;
    }
    
    header {
        padding: 10px 0;
    }
    
    .item-name {
        flex-direction: column;
    }
    
    .name-en {
        margin-top: 5px;
        font-size: 0.8rem;
    }
}

/* iPhone特定优化 */
@media (max-width: 375px) {
    .logo h1 {
        font-size: 1.1rem;
    }
    
    .category-nav-btn {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    
    .menu-img {
        height: 160px;
    }
}

/* 处理安全区域 - 适配齐刘海iPhone */
@supports (padding-top: env(safe-area-inset-top)) {
    header {
        padding-top: env(safe-area-inset-top);
    }
    
    .cart-sidebar {
        padding-top: env(safe-area-inset-top);
    }
}

/* 购物车侧边栏样式调整 */
.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.cart-header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.clear-cart-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.clear-cart-btn:hover {
    background-color: #d32f2f;
}

.cart-buttons {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 15px;
}

.continue-shopping-btn {
    flex: 1;
    padding: 12px 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.continue-shopping-btn:hover {
    background-color: #388E3C;
    transform: translateY(-2px);
}

.checkout-btn {
    flex: 1;
    padding: 12px 15px;
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.checkout-btn:hover {
    background-color: #1976D2;
    transform: translateY(-2px);
}

.submit-btn {
    padding: 12px 24px;
    background-color: #FF5722;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.submit-btn:hover {
    background-color: #E64A19;
    transform: translateY(-2px);
}

/* 修复购物车图片闪烁问题：彻底禁用图片的active/selection/拖拽高亮 */
.cart-item-img img,
.menu-img img {
    pointer-events: none;
    -webkit-tap-highlight-color: transparent;
    outline: none !important;
    border: none;
    box-shadow: none;
    /* 禁止图片获得焦点和被激活 */
    filter: none !important;
    background: transparent !important;
}

/* 防止图片在按钮点击时被重绘 */
.cart-item-img,
.menu-img {
    will-change: opacity, transform;
    /* 禁止父容器因active而重绘 */
    -webkit-tap-highlight-color: transparent;
}

/* 购物车数量按钮点击时彻底避免图片重绘 */
.quantity-btn:active ~ img,
.quantity-btn:focus ~ img {
    filter: none !important;
    background: transparent !important;
    outline: none !important;
}

/* 彻底隐藏确认订单模态框的默认显示（防止一开网站就弹出） */
#order-modal,
.modal {
    display: none !important;
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden !important;
    z-index: -1 !important;
}

/* 只有通过js添加active/show类时才显示 */
#order-modal.active,
.modal.active,
#order-modal.show,
.modal.show {
    display: flex !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    visibility: visible !important;
    z-index: 400 !important;
}

/* footer 美化 */
footer {
    background: linear-gradient(90deg, #fff 70%, #ffe5e5 100%);
    color: var(--text-color);
    padding: 36px 0 18px 0;
    border-top-left-radius: 18px;
    border-top-right-radius: 18px;
    box-shadow: 0 -4px 16px 0 rgba(198,40,40,0.06);
    margin-top: 40px;
    position: relative;
}

.footer-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
    border-bottom: 1.5px solid #f2bcbc;
    padding-bottom: 18px;
    margin-bottom: 12px;
}

.contact-info, .social-media {
    flex: 1 1 220px;
    min-width: 200px;
}

.contact-info h3, .social-media h3 {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 14px;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.contact-info p, .social-media .social-link {
    font-size: 1rem;
    margin-bottom: 8px;
    color: #444;
    display: flex;
    align-items: center;
    gap: 6px;
}

.contact-info p .material-icons {
    font-size: 1.2em;
    color: var(--primary-light);
    margin-right: 2px;
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 6px;
}

.social-link {
    color: var(--primary-color);
    background: #fff7f7;
    padding: 4px 14px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    box-shadow: 0 1px 4px rgba(198,40,40,0.06);
}

.social-link:hover {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 2px 8px rgba(198,40,40,0.12);
}

.copyright {
    text-align: center;
    color: #bdbdbd;
    font-size: 0.98rem;
    margin-top: 10px;
    letter-spacing: 1px;
    padding-bottom: 2px;
}

footer::before {
    content: "";
    display: block;
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary-color));
    border-radius: 6px;
    opacity: 0.18;
}

/* 调整订单模态框底部布局 */
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
}

.submit-btn {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
}

.order-total {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
}

.order-total span:last-child {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* 通知弹窗样式 */
.notification {
    position: fixed;
    bottom: 28px;
    left: 50%;
    white-space: nowrap;
    transform: translateX(-50%);
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    color: #fff;
    padding: 14px 32px;
    border-radius: 24px;
    box-shadow: 0 4px 18px rgba(198,40,40,0.13);
    font-size: 1.05rem;
    font-weight: 500;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    animation: notificationFadeIn 0.4s;
}

.notification.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

@keyframes notificationFadeIn {
    0% { opacity: 0; transform: translateX(-50%) translateY(-20px);}
    100% { opacity: 1; transform: translateX(-50%) translateY(0);}
}

.cart-item-special {
    margin-bottom: 6px;
}
.cart-item-special-input {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 5px 8px;
    font-size: 0.95rem;
    margin-top: 2px;
    margin-bottom: 2px;
    color: #c62828;
    background: #fff7f7;
    transition: border 0.2s;
}
.cart-item-special-input:focus {
    border: 1.5px solid var(--primary-color);
    outline: none;
}
.order-item-special {
    font-size: 0.92rem;
    color: #c62828;
    margin-top: 2px;
    margin-bottom: 2px;
    word-break: break-all;
}