/* ============================================
   达拉特旗多乐士漆 · CSS样式文件
   设计风格：品牌主导型 + 本地化温暖型 + 简约清新型
   色彩：多乐士红 + 纯白 + 清新蓝绿 + 暖色点缀
   ============================================ */

/* ---------- CSS变量定义 ---------- */
:root {
    /* 主色系 */
    --color-primary: #E53935;        /* 多乐士经典红 */
    --color-primary-dark: #C62828;    /* 深红 */
    --color-primary-light: #FFEBEE;  /* 浅红背景 */

    /* 辅助色系 */
    --color-secondary: #4CAF50;      /* 清新绿 */
    --color-secondary-light: #E8F5E9; /* 浅绿背景 */
    --color-accent: #03A9F4;         /* 清新蓝 */
    --color-accent-light: #E1F5FE;   /* 浅蓝背景 */

    /* 中性色系 */
    --color-white: #FFFFFF;
    --color-bg: #F8F9FA;            /* 页面背景灰 */
    --color-bg-alt: #F5F5F5;         /* 交替背景 */
    --color-text: #333333;           /* 主文字 */
    --color-text-light: #666666;     /* 次要文字 */
    --color-text-muted: #999999;     /* 辅助文字 */
    --color-border: #E0E0E0;         /* 边框色 */

    /* 点缀色 */
    --color-warm: #FFF8E1;          /* 米黄 */
    --color-orange: #FF9800;         /* 暖橙 */

    /* 功能色 */
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-error: #F44336;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);

    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* 容器宽度 */
    --container-max: 1200px;
    --container-padding: 16px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* ---------- 工具类 ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ---------- 头部导航 ---------- */
.header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.header-top .container {
    justify-content: space-between;
}

.header-main {
    padding: var(--spacing-md) 0;
}

.header-main .container {
    gap: var(--spacing-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-img {
    height: 48px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* 搜索框 */
.header-search {
    flex: 1;
    max-width: 500px;
}

.search-box {
    display: flex;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.search-box input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    font-size: 0.875rem;
}

.search-box button {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: background var(--transition-fast);
}

.search-box button:hover {
    background: var(--color-primary-dark);
}

/* 头部功能按钮 */
.header-actions {
    display: flex;
    gap: var(--spacing-lg);
}

.header-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--color-text);
    font-size: 0.75rem;
}

.header-action:hover {
    color: var(--color-primary);
}

.header-action i {
    font-size: 1.5rem;
}

/* 导航菜单 */
.nav {
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
}

.nav-list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-item a {
    display: block;
    padding: var(--spacing-md) 0;
    color: var(--color-text);
    font-weight: 500;
    position: relative;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-item a:hover::after,
.nav-item.active a::after {
    width: 100%;
}

.nav-item a:hover,
.nav-item.active a {
    color: var(--color-primary);
}

/* ---------- 移动端菜单 ---------- */
.mobile-menu-btn {
    display: none;
    background: none;
    font-size: 1.5rem;
    color: var(--color-text);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    padding: var(--spacing-lg);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.mobile-nav-close {
    background: none;
    font-size: 1.5rem;
    color: var(--color-text);
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-item a {
    display: block;
    padding: var(--spacing-md);
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-nav-item a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
}

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

/* ---------- 页面Banner ---------- */
.banner {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.banner-slider {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease;
}

.banner-slide {
    min-width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-align: center;
}

.banner-slide-content {
    max-width: 600px;
    padding: var(--spacing-xl);
}

.banner-slide h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.banner-slide p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.banner-btn {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
}

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

/* Banner指示器 */
.banner-dots {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
}

.banner-dot.active {
    background: var(--color-white);
}

/* ---------- 快捷入口卡片 ---------- */
.quick-entry {
    padding: var(--spacing-xxl) 0;
    background: var(--color-white);
}

.quick-entry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.quick-entry-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.quick-entry-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.quick-entry-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.quick-entry-card:nth-child(1) .quick-entry-icon { background: var(--color-primary-light); color: var(--color-primary); }
.quick-entry-card:nth-child(2) .quick-entry-icon { background: var(--color-secondary-light); color: var(--color-secondary); }
.quick-entry-card:nth-child(3) .quick-entry-icon { background: var(--color-accent-light); color: var(--color-accent); }
.quick-entry-card:nth-child(4) .quick-entry-icon { background: var(--color-warm); color: var(--color-orange); }

.quick-entry-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.quick-entry-desc {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
}

/* ---------- 产品区块 ---------- */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-title h2 {
    font-size: 1.75rem;
    color: var(--color-text);
}

.section-title::before {
    content: '';
    width: 5px;
    height: 30px;
    background: var(--color-primary);
    border-radius: 2px;
}

.section-more {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.section-more:hover {
    color: var(--color-primary);
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    cursor: pointer;
    transform: translateY(0);
    will-change: transform, box-shadow;
}

.product-card:hover,
.product-card.touch-active {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
    pointer-events: none;
}

.product-card:hover::before,
.product-card.touch-active::before {
    opacity: 0.05;
}

.product-card .product-image {
    position: relative;
    z-index: 2;
}

.product-card .product-info {
    position: relative;
    z-index: 2;
    background: var(--color-white);
}

/* 产品卡片加载动画 */
.product-card.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 触摸反馈效果 */
.touch-feedback {
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.touch-feedback.touch-active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* 产品卡片悬停按钮 */
.product-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(229, 57, 53, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 3;
    border-radius: var(--radius-lg);
}

.product-card:hover .product-card-overlay,
.product-card.touch-active .product-card-overlay {
    opacity: 1;
}

.product-card-overlay-content {
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-md);
}

.product-card-overlay-btn {
    background: var(--color-white);
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
    display: inline-block;
    margin-top: var(--spacing-md);
}

.product-card-overlay-btn:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: scale(1.05);
}

.product-image {
    position: relative;
    height: 200px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.product-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.product-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.product-tag {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.product-tag.hot {
    background: var(--color-orange);
}

.product-tag.new {
    background: var(--color-secondary);
}

.product-info {
    padding: var(--spacing-md);
}

.product-category {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-name:hover {
    color: var(--color-primary);
}

.product-feature {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.product-price-current {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.product-price-unit {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ---------- 分类卡片 ---------- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
}

.category-card {
    position: relative;
    height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.category-card:hover {
    transform: scale(1.02);
}

.category-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    opacity: 0.9;
}

.category-card-content {
    position: relative;
    z-index: 1;
    color: var(--color-white);
    text-align: center;
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.category-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.category-count {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ---------- 服务区块 ---------- */
.service-section {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-md);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-desc {
    font-size: 0.875rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* ---------- 案例展示 ---------- */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.case-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.case-image {
    height: 250px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.case-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.case-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.case-info {
    padding: var(--spacing-md);
}

.case-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.case-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ---------- 品牌信息 ---------- */
.brand-section {
    background: var(--color-white);
    padding: var(--spacing-xxl) 0;
}

.brand-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.brand-image {
    height: 400px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-image-placeholder {
    text-align: center;
    color: var(--color-text-muted);
}

.brand-image-placeholder i {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.brand-content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.brand-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.brand-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.brand-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.brand-feature i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.brand-feature span {
    font-weight: 500;
}

/* ---------- 门店信息 ---------- */
.store-section {
    background: var(--color-bg);
    padding: var(--spacing-xxl) 0;
}

.store-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.store-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.store-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.store-badge {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.store-title h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.store-title p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.store-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.store-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.store-info-item i {
    font-size: 1.25rem;
    color: var(--color-primary);
    width: 24px;
}

.store-info-item span {
    color: var(--color-text-light);
}

.store-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.store-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

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

.store-btn.secondary {
    background: var(--color-bg);
    color: var(--color-text);
}

.store-btn.secondary:hover {
    background: var(--color-border);
}

/* ---------- 色卡展示 ---------- */
.color-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-md);
}

.color-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.color-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.color-swatch {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.color-info {
    padding: var(--spacing-sm);
    text-align: center;
}

.color-name {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.color-code {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ---------- 表单样式 ---------- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text);
}

.form-label .required {
    color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
}

/* 表单验证样式 */
.form-input.valid,
.form-select.valid,
.form-textarea.valid {
    border-color: var(--color-success);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%234CAF50'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-input.invalid,
.form-select.invalid,
.form-textarea.invalid {
    border-color: var(--color-error);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23F44336'%3E%3Cpath d='M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-error {
    color: var(--color-error);
    font-size: 0.75rem;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0;
    transform: translateY(-5px);
    transition: all var(--transition-fast);
}

.form-error.show {
    opacity: 1;
    transform: translateY(0);
}

.form-error i {
    font-size: 0.875rem;
}

/* 表单加载状态 */
.form-loading {
    position: relative;
}

.form-loading::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* 实时验证反馈 */
.form-feedback {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.form-feedback.valid {
    background: var(--color-success);
    color: white;
    opacity: 1;
}

.form-feedback.invalid {
    background: var(--color-error);
    color: white;
    opacity: 1;
}

.form-group {
    position: relative;
}

/* 密码强度指示器 */
.password-strength {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: width var(--transition-normal);
}

.password-strength.weak .password-strength-bar {
    background: var(--color-error);
    width: 33%;
}

.password-strength.medium .password-strength-bar {
    background: var(--color-warning);
    width: 66%;
}

.password-strength.strong .password-strength-bar {
    background: var(--color-success);
    width: 100%;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* ---------- 按钮样式 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

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

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xxl);
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ---------- 页面底部 ---------- */
.footer {
    background: var(--color-text);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-white);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--color-primary);
}

.footer-desc {
    font-size: 0.875rem;
    line-height: 1.8;
    opacity: 0.8;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-primary);
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: rgba(255,255,255,0.7);
}

.footer-contact-item i {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-links a {
    color: rgba(255,255,255,0.6);
}

/* ---------- 抖音化风格增强 ---------- */

/* 紧迫感横幅 */
.urgency-banner {
    background: linear-gradient(90deg, #FF4757 0%, #FF6B81 100%);
    color: white;
    padding: 10px 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    animation: urgencyPulse 2s infinite;
}

.urgency-banner .urgency-icon {
    font-size: 18px;
    animation: bounce 1s infinite;
}

.urgency-banner .urgency-text {
    font-weight: 600;
}

.urgency-banner .urgency-countdown {
    background: rgba(255,255,255,0.2);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 700;
}

@keyframes urgencyPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.9; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* 视频种草区 */
.video-feed-section {
    background: #000;
    padding: 0;
    margin: 0;
}

.video-card {
    position: relative;
    width: 100%;
    max-width: 100%;
    aspect-ratio: 9/16;
    max-height: 70vh;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    overflow: hidden;
}

@media (min-width: 768px) {
    .video-card {
        max-width: 400px;
        margin: 20px auto;
        border-radius: 16px;
        box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    }
}

.video-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 20px;
}

.video-placeholder i {
    font-size: 60px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
    color: white;
}

.video-overlay h3 {
    font-size: 20px;
    margin-bottom: 8px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.video-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

.video-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: #FF4757;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

/* 抖音互动按钮 */
.tiktok-actions {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 768px) {
    .tiktok-actions {
        right: 12px;
        gap: 16px;
    }
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: white;
    background: none;
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
}

.action-btn:hover {
    transform: scale(1.1);
}

.action-btn i {
    font-size: 28px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .action-btn i {
        font-size: 24px;
    }
}

.action-btn span {
    font-size: 12px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.action-btn.liked i {
    color: #FF4757;
    animation: heartBeat 0.5s;
}

@keyframes heartBeat {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

/* 抖音风格Banner */
.tiktok-banner {
    background: linear-gradient(135deg, #E53935 0%, #FF6B6B 50%, #FF4757 100%);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 40px 20px;
    position: relative;
    overflow: hidden;
}

.tiktok-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.tiktok-banner h1 {
    font-size: 2.5rem;
    font-weight: 900;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.tiktok-banner h1 span {
    display: block;
    font-size: 1.2rem;
    margin-top: 8px;
    opacity: 0.95;
}

@media (max-width: 768px) {
    .tiktok-banner h1 {
        font-size: 2rem;
    }
    
    .tiktok-banner h1 span {
        font-size: 1rem;
    }
}

.tiktok-banner .banner-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin: 24px 0;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .tiktok-banner .banner-stats {
        gap: 20px;
    }
}

.tiktok-banner .stat-item {
    text-align: center;
}

.tiktok-banner .stat-number {
    font-size: 2rem;
    font-weight: 900;
}

@media (max-width: 768px) {
    .tiktok-banner .stat-number {
        font-size: 1.5rem;
    }
}

.tiktok-banner .stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

.tiktok-banner .cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 24px;
    position: relative;
    z-index: 1;
}

.tiktok-banner .cta-btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
}

.tiktok-banner .cta-btn.primary {
    background: white;
    color: #E53935;
}

.tiktok-banner .cta-btn.secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid white;
}

.tiktok-banner .cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
    .tiktok-banner .cta-btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}

/* 用户评价故事区 */
.user-stories-section {
    background: #fafafa;
    padding: 32px 16px;
}

.stories-header {
    text-align: center;
    margin-bottom: 24px;
}

.stories-header h2 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 8px;
}

.stories-header p {
    color: #666;
    font-size: 14px;
}

.story-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.story-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.story-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #E53935, #FF6B6B);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: 700;
}

.story-meta {
    flex: 1;
}

.story-meta h4 {
    font-size: 15px;
    color: #333;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.story-meta p {
    font-size: 12px;
    color: #999;
}

.story-verified {
    color: #07C160;
    font-size: 14px;
}

.story-content {
    font-size: 15px;
    color: #333;
    line-height: 1.6;
    margin-bottom: 12px;
}

.story-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.story-tags span {
    background: #f0f0f0;
    color: #666;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.story-actions {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
}

.story-action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #666;
    font-size: 14px;
    background: none;
    border: none;
    cursor: pointer;
}

.story-action-btn:hover {
    color: #E53935;
}

/* 抖音风格产品展示 */
.tiktok-products-section {
    background: white;
    padding: 32px 16px;
}

.tiktok-products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.tiktok-products-header h2 {
    font-size: 1.5rem;
    color: #333;
}

.tiktok-products-header .more-link {
    color: #E53935;
    font-size: 14px;
    text-decoration: none;
}

.tiktok-product-scroll {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 16px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
}

.tiktok-product-card {
    flex: 0 0 160px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    scroll-snap-align: start;
    cursor: pointer;
}

.tiktok-product-card:hover {
    transform: translateY(-4px);
}

.tiktok-product-image {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    font-size: 40px;
}

.tiktok-product-info {
    padding: 12px;
}

.tiktok-product-title {
    font-size: 14px;
    color: #333;
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tiktok-product-price {
    font-size: 18px;
    color: #E53935;
    font-weight: 700;
}

.tiktok-product-price span {
    font-size: 12px;
    color: #999;
    text-decoration: line-through;
    margin-left: 6px;
    font-weight: normal;
}

/* 分享海报生成 */
.share-poster-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.share-poster-modal.active {
    display: flex;
}

.poster-container {
    background: white;
    border-radius: 16px;
    max-width: 360px;
    width: 100%;
    overflow: hidden;
}

.poster-image {
    width: 100%;
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, #E53935, #FF6B6B);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 30px;
}

.poster-image h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.poster-image p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 24px;
}

.poster-qr {
    width: 150px;
    height: 150px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.poster-qr i {
    font-size: 80px;
    color: #333;
}

.poster-footer {
    padding: 20px;
    text-align: center;
}

.poster-footer p {
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
}

.poster-actions {
    display: flex;
    gap: 12px;
}

.poster-actions button {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.poster-actions .close-btn {
    background: #f5f5f5;
    color: #666;
    border: none;
}

.poster-actions .save-btn {
    background: #E53935;
    color: white;
    border: none;
}

.poster-actions button:hover {
    transform: translateY(-2px);
}

/* 移动端悬浮互动栏 */
.floating-actions {
    position: fixed;
    bottom: 80px;
    left: 0;
    right: 0;
    display: none;
    padding: 12px 16px;
    background: white;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
    z-index: 100;
}

@media (max-width: 768px) {
    .floating-actions {
        display: flex;
        gap: 12px;
    }
}

.floating-action-btn {
    flex: 1;
    padding: 14px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.floating-action-btn.primary {
    background: linear-gradient(135deg, #E53935, #FF6B6B);
    color: white;
}

.floating-action-btn.secondary {
    background: #f5f5f5;
    color: #333;
}

.floating-action-btn:hover {
    transform: translateY(-2px);
}

/* 桌面端隐藏抖音元素 */
@media (min-width: 769px) {
    .video-feed-section {
        display: none;
    }
    
    .tiktok-banner {
        display: none;
    }
    
    .floating-actions {
        display: none !important;
    }
    
    .user-stories-section,
    .tiktok-products-section {
        display: none;
    }
}

/* 移动端隐藏桌面端Banner */
@media (max-width: 768px) {
    .banner.desktop-only {
        display: none !important;
    }
    
    .home-hot-products.mobile-only,
    .home-categories.mobile-only {
        display: block !important;
    }
}

/* ---------- 页面标题区 ---------- */
.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
}

.breadcrumb a {
    color: rgba(255,255,255,0.8);
}

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

.breadcrumb span {
    opacity: 0.6;
}

/* ---------- 筛选栏 ---------- */
.filter-bar {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.filter-left {
    display: flex;
    gap: var(--spacing-md);
}

.filter-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.filter-item label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.filter-item select {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.filter-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.filter-sort {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
}

.filter-sort select {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

/* ---------- 商品详情页 ---------- */
.product-detail {
    padding: var(--spacing-xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.product-main-image {
    height: 500px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.product-main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.product-image-placeholder i {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.product-thumbnails {
    display: flex;
    gap: var(--spacing-sm);
}

.product-thumbnail {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.product-thumbnail.active,
.product-thumbnail:hover {
    border-color: var(--color-primary);
}

.product-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info {
    padding: var(--spacing-lg) 0;
}

.product-detail-category {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.product-detail-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.product-detail-desc {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.product-detail-price {
    margin-bottom: var(--spacing-lg);
}

.product-detail-price .label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.product-detail-price .price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.product-detail-price .unit {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.product-specs {
    margin-bottom: var(--spacing-lg);
}

.product-spec {
    display: flex;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-bg);
}

.product-spec .label {
    width: 120px;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.product-spec .value {
    flex: 1;
    font-weight: 500;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.product-tag {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-secondary-light);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ---------- 预约表单 ---------- */
.booking-section {
    padding: var(--spacing-xxl) 0;
}

.booking-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
}

.booking-form {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.booking-form h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.booking-info {
    padding: var(--spacing-xl);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-lg);
}

.booking-info h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.booking-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.booking-info-item i {
    font-size: 1.5rem;
    opacity: 0.9;
}

.booking-info-item h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.booking-info-item p {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ---------- 列表卡片样式 ---------- */
.list-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.list-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.list-card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.list-card-meta {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.list-card-content {
    color: var(--color-text-light);
    line-height: 1.8;
}

.list-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ---------- 空状态 ---------- */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
}

.empty-state i {
    font-size: 4rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.empty-state p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.pagination-item {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    background: var(--color-white);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.pagination-item:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.pagination-item.active {
    background: var(--color-primary);
    color: var(--color-white);
}

.pagination-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---------- 弹窗/Modal ---------- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    font-size: 1.5rem;
    color: var(--color-text-muted);
}

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

.modal-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ---------- 提示消息 ---------- */
.toast {
    position: fixed;
    top: 100px;
    right: var(--spacing-lg);
    background: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 4000;
    transform: translateX(calc(100% + var(--spacing-lg)));
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid var(--color-success);
}

.toast.error {
    border-left: 4px solid var(--color-error);
}

.toast.warning {
    border-left: 4px solid var(--color-warning);
}

.toast i {
    font-size: 1.25rem;
}

.toast.success i { color: var(--color-success); }
.toast.error i { color: var(--color-error); }
.toast.warning i { color: var(--color-warning); }

/* ---------- 加载状态 ---------- */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.page-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.page-loading .loading {
    width: 40px;
    height: 40px;
    margin-bottom: var(--spacing-md);
}

.page-loading p {
    color: var(--color-text-light);
}

/* ---------- 响应式设计 ---------- */
/* 大屏幕（1200px以下） */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 中等屏幕（992px以下） */
@media (max-width: 992px) {
    .header-search {
        display: none;
    }

    .quick-entry-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-grid {
        grid-template-columns: 1fr;
    }

    .brand-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .booking-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* 平板/大手机（768px以下）- 主要移动端断点 */
@media (max-width: 768px) {
    :root {
        --container-padding: 12px;
        --container-max: 100%;
    }

    html {
        font-size: 14px;
    }

    body {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

    /* 头部优化 */
    .header-top {
        display: none;
    }

    .nav-list {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        width: 44px;
        height: 44px;
        padding: 0;
        background: none;
        border: none;
        font-size: 1.25rem;
        color: var(--color-text);
    }

    .header-main {
        padding: var(--spacing-sm) 0;
    }

    .header-main .container {
        gap: var(--spacing-sm);
    }

    .logo-text {
        font-size: 1rem;
    }

    .logo-tagline {
        font-size: 0.75rem;
    }

    .logo-img {
        height: 36px;
    }

    /* 头部功能按钮优化 */
    .header-actions {
        gap: var(--spacing-sm);
    }

    .header-action {
        font-size: 0.7rem;
    }

    .header-action i {
        font-size: 1.25rem;
    }

    /* Banner优化 */
    .banner {
        height: 250px;
    }

    .banner-slide h2 {
        font-size: 1.25rem;
        line-height: 1.3;
        margin-bottom: var(--spacing-sm);
    }

    .banner-slide p {
        font-size: 0.875rem;
        margin-bottom: var(--spacing-md);
    }

    .banner-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.875rem;
    }

    /* 快捷入口优化 */
    .quick-entry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .quick-entry-card {
        padding: var(--spacing-sm);
    }

    .quick-entry-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
        margin-bottom: var(--spacing-sm);
    }

    .quick-entry-title {
        font-size: 0.875rem;
        margin-bottom: 2px;
    }

    .quick-entry-desc {
        font-size: 0.75rem;
    }

    /* 区块标题优化 */
    .section {
        padding: var(--spacing-xl) 0;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
        margin-bottom: var(--spacing-lg);
    }

    .section-title h2 {
        font-size: 1.25rem;
    }

    .section-title::before {
        height: 24px;
    }

    /* 产品网格优化 */
    .product-grid,
    .category-grid,
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .product-image {
        height: 150px;
    }

    .product-name {
        font-size: 0.875rem;
        -webkit-line-clamp: 2;
    }

    .product-feature {
        font-size: 0.75rem;
    }

    .product-price-current {
        font-size: 1rem;
    }

    /* 分类卡片优化 */
    .category-card {
        height: 150px;
    }

    .category-icon {
        font-size: 2rem;
    }

    .category-name {
        font-size: 1rem;
    }

    /* 服务区块优化 */
    .service-section {
        padding: var(--spacing-xl) 0;
    }

    .service-card {
        padding: var(--spacing-md);
    }

    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .service-title {
        font-size: 1rem;
    }

    .service-desc {
        font-size: 0.75rem;
    }

    /* 案例展示优化 */
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .case-image {
        height: 180px;
    }

    .case-title {
        font-size: 0.875rem;
    }

    .case-meta {
        font-size: 0.75rem;
        flex-direction: column;
        gap: 2px;
    }

    /* 品牌信息优化 */
    .brand-section {
        padding: var(--spacing-xl) 0;
    }

    .brand-image {
        height: 250px;
    }

    .brand-image-placeholder i {
        font-size: 3rem;
    }

    .brand-content h2 {
        font-size: 1.5rem;
    }

    .brand-content p {
        font-size: 0.875rem;
    }

    .brand-features {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .brand-feature {
        padding: var(--spacing-sm);
        font-size: 0.75rem;
    }

    .brand-feature i {
        font-size: 1rem;
    }

    /* 门店信息优化 */
    .store-section {
        padding: var(--spacing-xl) 0;
    }

    .store-grid {
        gap: var(--spacing-md);
    }

    .store-card {
        padding: var(--spacing-md);
    }

    .store-badge {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .store-title h3 {
        font-size: 1rem;
    }

    .store-title p {
        font-size: 0.75rem;
    }

    .store-info-item {
        font-size: 0.875rem;
    }

    .store-btn {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    /* 色卡展示优化 */
    .color-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .color-swatch {
        height: 100px;
        font-size: 1rem;
    }

    .color-name {
        font-size: 0.75rem;
    }

    .color-code {
        font-size: 0.625rem;
    }

    /* 筛选栏优化 */
    .filter-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
        padding: var(--spacing-sm);
    }

    .filter-left {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .filter-item {
        flex: 1 0 calc(50% - 8px);
    }

    /* 表单优化 */
    .form-row {
        grid-template-columns: 1fr;
    }

    .form-input,
    .form-select,
    .form-textarea {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    /* 商品详情页优化 */
    .product-gallery {
        position: static;
    }

    .product-main-image {
        height: 300px;
    }

    .product-thumbnails {
        justify-content: center;
    }

    .product-thumbnail {
        width: 60px;
        height: 60px;
    }

    .product-detail-title {
        font-size: 1.25rem;
    }

    .product-detail-desc {
        font-size: 0.875rem;
    }

    .product-detail-price .price {
        font-size: 1.5rem;
    }

    .product-spec .label {
        width: 100px;
    }

    .product-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .product-actions .btn {
        width: 100%;
    }

    /* 预约表单优化 */
    .booking-form {
        padding: var(--spacing-md);
    }

    .booking-info {
        padding: var(--spacing-md);
    }

    /* 按钮优化 */
    .btn {
        min-height: 44px;
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.875rem;
    }

    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-xl);
        font-size: 1rem;
    }

    /* 页脚优化 */
    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }

    .footer-grid {
        gap: var(--spacing-lg);
    }

    .footer-title {
        font-size: 0.875rem;
    }

    .footer-links {
        gap: 4px;
    }

    .footer-links a {
        font-size: 0.75rem;
    }

    .footer-contact-item {
        font-size: 0.75rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
        font-size: 0.75rem;
    }

    .footer-bottom-links {
        gap: var(--spacing-sm);
    }

    /* 分页优化 */
    .pagination-item {
        min-width: 36px;
        height: 36px;
    }

    /* 弹窗优化 */
    .modal-content {
        width: 95%;
        padding: var(--spacing-md);
    }

    /* 移动端专属样式 */
    .mobile-touch-optimized {
        -webkit-tap-highlight-color: transparent;
        cursor: pointer;
    }

    .mobile-scroll-smooth {
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }

    .mobile-text-size-adjusted {
        font-size: clamp(14px, 3vw, 16px);
    }
    
    /* 移动端专用类 */
    .mobile-only {
        display: none;
    }
    
    .mobile-only-inline {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
    
    .mobile-only-hide {
        display: block;
    }
    
    @media (max-width: 768px) {
        .mobile-only {
            display: block;
        }
        
        .mobile-only-inline {
            display: inline;
        }
        
        .desktop-only {
            display: none !important;
        }
        
        .mobile-only-hide {
            display: none !important;
        }
    }
}

/* 小手机（480px以下） */
@media (max-width: 480px) {
    :root {
        --container-padding: 8px;
    }

    html {
        font-size: 13px;
    }

    .container {
        padding: 0 8px;
    }

    /* 单列布局优化 */
    .quick-entry-grid,
    .product-grid,
    .category-grid,
    .case-grid,
    .color-grid,
    .store-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .service-card {
        padding: var(--spacing-sm);
    }

    .brand-features {
        grid-template-columns: 1fr;
    }

    .filter-item {
        flex: 1 0 100%;
    }

    /* 文本优化 */
    .banner-slide h2 {
        font-size: 1.125rem;
    }

    .banner-slide p {
        font-size: 0.75rem;
    }

    .section-title h2 {
        font-size: 1.125rem;
    }

    .product-name {
        font-size: 0.8125rem;
        -webkit-line-clamp: 2;
    }

    .product-feature {
        font-size: 0.6875rem;
    }

    /* 图片优化 */
    .product-image,
    .category-card,
    .case-image {
        height: 120px;
    }

    .banner {
        height: 200px;
    }

    .product-main-image {
        height: 250px;
    }

    /* 按钮优化 */
    .btn {
        min-height: 40px;
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.8125rem;
    }

    /* 移动端导航优化 */
    .mobile-nav {
        width: 100%;
        max-width: 280px;
    }

    .mobile-nav-item a {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }

    /* 页脚链接居中 */
    .footer-links {
        text-align: center;
    }

    /* 防止输入框缩放 */
    input, textarea, select {
        font-size: 16px !important;
    }

    /* 触摸目标尺寸优化 */
    .mobile-tap-target {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 滚动优化 */
    .mobile-scroll-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .mobile-scroll-container::-webkit-scrollbar {
        display: none;
    }
}

/* 超小屏幕（360px以下） */
@media (max-width: 360px) {
    html {
        font-size: 12px;
    }

    .container {
        padding: 0 6px;
    }

    .banner {
        height: 180px;
    }

    .quick-entry-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .product-image {
        height: 100px;
    }

    .btn {
        min-height: 36px;
        padding: 6px 12px;
        font-size: 0.75rem;
    }
}

/* 移动端横屏优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .header-main {
        padding: 8px 0;
    }

    .nav {
        display: none;
    }

    .banner {
        height: 200px;
    }

    .quick-entry-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .product-grid,
    .category-grid,
    .case-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .mobile-nav {
        width: 50%;
    }
}

/* 高DPI屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1a1a1a;
        --color-bg-alt: #2d2d2d;
        --color-text: #f0f0f0;
        --color-text-light: #aaaaaa;
        --color-text-muted: #777777;
        --color-border: #404040;
        --color-white: #2d2d2d;
    }

    .header,
    .product-card,
    .case-card,
    .store-card,
    .modal-content {
        background: var(--color-white);
    }
}