/**
 * LRON ENTERTAINMENT - 主样式文件
 * Rolling Stone 风格设计：大胆、现代、视觉冲击力强
 */

:root {
    /* Rolling Stone 经典配色 */
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --accent-red: #d00;
    --accent-gold: #d4af37;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-light: #999;
    --bg-white: #ffffff;
    --bg-light: #f8f8f8;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: "SF Pro Text", "SF Pro Icons", "Helvetica Neue", "Helvetica", "Arial", sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--accent-red);
}

/* 导航栏 - 现代化商业化设计 */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0,0,0,0.1);
    background: rgba(255,255,255,0.99);
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 900;
    letter-spacing: -1px;
    color: var(--primary-black);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
    position: relative;
}

.nav-logo:hover {
    transform: translateY(-2px);
}

.nav-logo::before {
    content: '♪';
    color: var(--accent-red);
    font-size: 2rem;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nav-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.nav-logo-main {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--primary-black);
}

.nav-logo-sub {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: var(--transition);
    position: relative;
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(221,0,0,0.1) 0%, rgba(221,0,0,0.05) 100%);
    border-radius: 6px;
    opacity: 0;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--accent-red);
    transform: translateY(-1px);
}

.nav-link:hover::before {
    opacity: 1;
}

.nav-link.active {
    color: var(--accent-red);
    background: rgba(221,0,0,0.08);
}

.nav-link.active::before {
    opacity: 1;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    position: relative;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 0;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-red {
    background: var(--accent-red);
    color: var(--bg-white);
}

.btn-red:hover {
    background: #b00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-vip {
    background: linear-gradient(135deg, var(--accent-gold), #ffd700);
    color: var(--primary-black);
    font-weight: 700;
}

.btn-vip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 移动端菜单 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    color: var(--accent-red);
}

.mobile-menu-toggle .menu-icon {
    display: block;
    transition: var(--transition);
}

.mobile-menu-toggle.active .menu-icon {
    transform: rotate(90deg);
}

/* 英雄区域 - 大胆的视觉设计 */
.hero {
    position: relative;
    height: 85vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    color: var(--bg-white);
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(26,26,26,0.8) 0%, rgba(26,26,26,0.6) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: -2px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.95;
    letter-spacing: 1px;
}

/* 内容区块 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* 卡片设计 */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-red);
}

.card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

/* 专辑封面图片 - 使用1:1比例，更适合音乐专辑 */
.album-card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
    transition: var(--transition);
    background: var(--bg-light);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--bg-white);
    position: relative;
    overflow: hidden;
}

/* 专辑封面渐变叠加效果 */
.album-card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
    transition: opacity var(--transition);
    opacity: 0;
}

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

.card:hover .album-card-image {
    transform: scale(1.03);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card:hover .album-card-image::before {
    opacity: 1;
}

.card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
    line-height: 1.3;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 4.8rem;
}

.card-link {
    color: var(--accent-red);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.card-link:hover {
    gap: 1rem;
}

.card-link::after {
    content: '→';
    transition: var(--transition);
}

/* 特色卡片 - 大尺寸 */
.featured-card {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.featured-card .card-image {
    height: 350px;
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.news-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.news-item:hover {
    border-color: var(--accent-red);
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    display: flex;
    flex-direction: column;
}

.news-category {
    font-size: 0.8rem;
    color: var(--accent-red);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.news-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--primary-black);
    line-height: 1.3;
}

.news-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.news-meta {
    font-size: 0.85rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(221, 0, 0, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: var(--bg-white);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-red);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* VIP 标识 */
.vip-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--accent-gold), #ffd700);
    color: var(--primary-black);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--bg-white);
    animation: spin 0.8s linear infinite;
}

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

/* 消息提示 */
.alert {
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
    background: var(--bg-light);
}

.alert-success {
    border-color: #28a745;
    color: #155724;
    background: #d4edda;
}

.alert-error {
    border-color: var(--accent-red);
    color: #721c24;
    background: #f8d7da;
}

.alert-info {
    border-color: #007bff;
    color: #004085;
    background: #d1ecf1;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-container {
        padding: 0 1.5rem;
        height: 70px;
    }
    
    .nav-menu {
        gap: 0.25rem;
    }
    
    .nav-link {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        height: 65px;
    }
    
    .nav-logo {
        font-size: 1.5rem;
    }
    
    .nav-logo-main {
        font-size: 1.5rem;
    }
    
    .nav-logo-sub {
        font-size: 0.6rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 65px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 65px);
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition);
        box-shadow: 0 8px 32px rgba(0,0,0,0.1);
        gap: 0.5rem;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem 1.5rem;
        border-radius: 8px;
        text-align: left;
    }

    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-actions {
        gap: 0.75rem;
    }
    
    .hero {
        height: 70vh;
        min-height: 500px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .featured-card {
        grid-column: span 1;
    }

    .news-item {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 3rem 0;
    }

    .container {
        padding: 0 1rem;
    }
}

/* 语言切换器 - 全球化支持 */
.language-switcher {
    position: relative;
    display: inline-block;
}

.language-switcher-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.language-switcher-btn:hover {
    background: rgba(221,0,0,0.1);
    border-color: var(--accent-red);
    color: var(--accent-red);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(221,0,0,0.15);
}

.language-switcher-btn .lang-name {
    display: inline-block;
}

.language-switcher-btn .arrow {
    font-size: 0.7rem;
    transition: var(--transition);
    margin-left: 0.25rem;
}

.language-switcher-btn:hover .arrow {
    transform: translateY(2px);
}

@media (max-width: 768px) {
    .language-switcher-btn .lang-name {
        display: none;
    }
    
    .language-switcher-btn {
        padding: 0.5rem 0.75rem;
    }
}

.language-switcher-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.language-switcher-btn .arrow {
    font-size: 0.7rem;
    transition: var(--transition);
}

.language-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--bg-white);
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    min-width: 200px;
    display: none;
    z-index: 1000;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.language-menu.active {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-weight: 500;
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: linear-gradient(135deg, rgba(221,0,0,0.1) 0%, rgba(221,0,0,0.05) 100%);
    color: var(--accent-red);
    padding-left: 1.5rem;
}

.language-option.active {
    background: linear-gradient(135deg, rgba(221,0,0,0.15) 0%, rgba(221,0,0,0.08) 100%);
    color: var(--accent-red);
    font-weight: 700;
    border-left: 3px solid var(--accent-red);
}

/* SEO优化 - 结构化数据支持 */
.microdata {
    display: none;
}

/* 改进的响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 1200px;
        padding: 0 1.5rem;
    }
}

@media (max-width: 992px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-content {
        padding: 1.5rem;
    }
}

/* 改进的加载状态 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.loading-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* 改进的卡片动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeInUp 0.6s ease-out;
}

/* 改进的表单验证样式 */
.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--accent-red);
}

.form-input:valid:not(:placeholder-shown) {
    border-color: #28a745;
}

.form-error {
    color: var(--accent-red);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block;
}

/* 改进的按钮组 */
.btn-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-group .btn {
    flex: 1;
    min-width: 120px;
}

/* 改进的徽章样式 */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 999px;
}

.badge-success {
    background: #28a745;
    color: white;
}

.badge-warning {
    background: #ffc107;
    color: var(--primary-black);
}

.badge-danger {
    background: var(--accent-red);
    color: white;
}

.badge-info {
    background: #17a2b8;
    color: white;
}

/* 改进的分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.pagination a:hover {
    background: var(--accent-red);
    color: white;
    border-color: var(--accent-red);
}

.pagination .active {
    background: var(--accent-red);
    color: white;
    border-color: var(--accent-red);
}

/* 改进的搜索框 */
.search-box {
    position: relative;
    display: inline-block;
}

.search-input {
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 2px solid var(--border-color);
    font-size: 0.9rem;
    width: 300px;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--accent-red);
    outline: none;
    width: 350px;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.hidden { display: none; }
.visible { display: block; }

/* 购物车相关样式 */
.cart-count {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--accent-red);
    color: white;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
    animation: popIn 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.add-to-cart-btn {
    min-width: 120px;
    font-size: 0.85rem;
    padding: 0.6rem 1rem;
}

.add-to-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.add-to-cart-btn:active {
    transform: translateY(0);
}

/* 商品卡片按钮样式 */
.product-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-red);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.product-price::before {
    content: '¥';
    font-size: 1rem;
    margin-right: 2px;
    font-weight: 600;
}

.product-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-add-cart {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-black) 0%, #333 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.btn-add-cart::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-add-cart:hover::before {
    left: 100%;
}

.btn-add-cart:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, var(--accent-red) 0%, #b00 100%);
}

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

.btn-details {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.btn-details:hover {
    color: var(--accent-red);
    background: rgba(221, 0, 0, 0.05);
}

.btn-details .btn-arrow {
    font-size: 1rem;
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateX(-8px);
}

.btn-details:hover .btn-arrow {
    opacity: 1;
    transform: translateX(4px);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .product-price {
        font-size: 1.3rem;
    }
    
    .btn-add-cart {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .btn-details {
        padding: 0.65rem 1rem;
        font-size: 0.85rem;
    }
}

/* 通知样式 */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    min-width: 300px;
    max-width: 400px;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.notification-error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.notification-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.notification-message {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .notification {
        right: 10px;
        left: 10px;
        min-width: auto;
        max-width: none;
    }
}