/**
 * X.Audio 小邪音频 - 主样式文件
 * 
 * 文件结构：
 * 1. 全局样式 - 基础样式、容器、按钮
 * 2. 导航栏 - 头部导航、菜单
 * 3. 英雄区域 - 主页横幅
 * 4. 通用区块样式 - 区块标题、内容
 * 5. 特色功能 - 功能卡片展示
 * 6. 工具区域 - 工具卡片网格
 * 7. 定价区域 - 价格方案卡片
 * 8. 关于我们 - 公司介绍
 * 9. 联系我们 - 联系表单
 * 10. 页脚 - 页面底部信息
 * 11. 响应式设计 - 移动端适配
 * 12. 动画效果 - 页面动画
 * 13. 模态框 - 弹窗样式
 * 14. 音乐播放列表 - 播放器样式
 */

/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #050507;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(120, 40, 200, 0.15) 0%, transparent 55%),
        radial-gradient(circle at 80% 80%, rgba(255, 100, 100, 0.15) 0%, transparent 55%),
        radial-gradient(circle at 40% 70%, rgba(120, 200, 255, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, rgba(10, 10, 15, 0.9) 0%, rgba(15, 10, 25, 0.9) 100%);
    background-attachment: fixed;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 16px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, #8a34d1 0%, #ff7575 100%);
    color: white;
    box-shadow: 
        0 4px 14px 0 rgba(120, 40, 200, 0.4),
        0 0 20px rgba(120, 40, 200, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

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

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 8px 25px 0 rgba(120, 40, 200, 0.5),
        0 0 30px rgba(120, 40, 200, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: rgba(120, 40, 200, 0.1);
    color: #a368e0;
    border: 2px solid rgba(120, 40, 200, 0.4);
    backdrop-filter: blur(15px);
}

.btn-outline:hover {
    background: linear-gradient(135deg, #8a34d1 0%, #ff7575 100%);
    color: white;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 6px 20px 0 rgba(120, 40, 200, 0.45),
        0 0 25px rgba(120, 40, 200, 0.35);
    border-color: rgba(120, 40, 200, 0.8);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: 16px;
}

/* 导航栏 */
.header {
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(120, 40, 200, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-size: 24px;
    font-weight: 700;
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -10px;
    right: -10px;
    bottom: -5px;
    background: linear-gradient(45deg, #7828c8, #ff6464, #7828c8);
    border-radius: 10px;
    opacity: 0.5;
    filter: blur(10px);
    z-index: -1;
}

.logo-icon {
    margin-right: 10px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

@keyframes gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-item {
    margin-left: 30px;
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 8px 12px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 12px;
    right: 12px;
    height: 2px;
    background: linear-gradient(90deg, #8a34d1, #ff7575);
    border-radius: 1px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 12px rgba(120, 40, 200, 0.2);
    transform: translateY(-2px);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.mobile-menu-btn {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 24px;
    cursor: pointer;
    color: white;
    padding: 8px 12px;
    backdrop-filter: blur(15px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0, 0.2, 1);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 12px rgba(120, 40, 200, 0.3);
    transform: translateY(-2px);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, rgba(10, 10, 15, 0.9) 0%, rgba(10, 10, 15, 0.8) 100%);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(120, 40, 200, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 100, 100, 0.3) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    color: white;
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.7);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(45deg, #7828c8, #ff6464, #7828c8);
    border-radius: 20px;
    opacity: 0.3;
    filter: blur(20px);
    z-index: -1;
    animation: rotate 10s linear infinite;
}

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

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-header::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #7828c8, #ff6464);
    border-radius: 2px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    color: white;
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
}

/* 特色功能 */
.features {
    padding: 100px 0;
    background-color: rgba(10, 10, 15, 0.8);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 50%, rgba(120, 40, 200, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.feature-card {
    background-color: rgba(20, 20, 30, 0.8);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border: 1px solid rgba(120, 40, 200, 0.2);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(120, 40, 200, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(120, 40, 200, 0.3);
    border-color: rgba(120, 40, 200, 0.5);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 24px;
    box-shadow: 0 4px 15px rgba(120, 40, 200, 0.3);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: white;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* 工具区域 */
.tools {
    padding: 100px 0;
    background-color: rgba(10, 10, 15, 0.9);
    position: relative;
}

.tools::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(255, 100, 100, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.tool-card {
    background: rgba(20, 20, 30, 0.7);
    border-radius: 16px;
    padding: 35px;
    text-align: center;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(255, 100, 100, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 100, 100, 0.3);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 100, 100, 0.15), transparent);
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover::before {
    left: 100%;
}

.tool-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 12px 30px rgba(255, 100, 100, 0.4),
        0 0 40px rgba(255, 100, 100, 0.2);
    border-color: rgba(255, 100, 100, 0.7);
}

.tool-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #8a34d1 0%, #ff7575 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 28px;
    box-shadow: 
        0 6px 20px rgba(120, 40, 200, 0.4),
        0 0 25px rgba(120, 40, 200, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 
        0 8px 25px rgba(120, 40, 200, 0.5),
        0 0 35px rgba(120, 40, 200, 0.4);
}

.tool-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: white;
}

.tool-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.tool-btn {
    width: 100%;
}

/* 定价区域 */
.pricing {
    padding: 100px 0;
    background-color: rgba(10, 10, 15, 0.8);
    position: relative;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 70% 30%, rgba(120, 40, 200, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 30% 70%, rgba(255, 100, 100, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.pricing-card {
    background: rgba(20, 20, 30, 0.6);
    border-radius: 16px;
    padding: 45px;
    text-align: center;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(120, 40, 200, 0.1);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(120, 40, 200, 0.3);
    overflow: hidden;
    backdrop-filter: blur(15px);
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(120, 40, 200, 0.15), transparent);
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover::before {
    left: 100%;
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 12px 30px rgba(120, 40, 200, 0.4),
        0 0 40px rgba(120, 40, 200, 0.2);
    border-color: rgba(120, 40, 200, 0.7);
}

.pricing-card.featured {
    border: 2px solid rgba(120, 40, 200, 0.8);
    transform: scale(1.05);
    background: rgba(25, 25, 35, 0.8);
    box-shadow: 
        0 6px 20px rgba(120, 40, 200, 0.4),
        0 0 45px rgba(120, 40, 200, 0.3);
    position: relative;
}

.pricing-card.featured::before {
    background: linear-gradient(90deg, transparent, rgba(255, 100, 100, 0.15), transparent);
}

.pricing-card.featured::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #8a34d1, #ff7575, #8a34d1);
    animation: gradient-shift 3s ease-in-out infinite;
}

.pricing-badge {
    position: absolute;
    top: -10px;
    right: 30px;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(120, 40, 200, 0.3);
}

.pricing-header {
    margin-bottom: 30px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: white;
}

.pricing-price {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 5px;
    color: white;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.pricing-price .period {
    font-size: 16px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
}

.pricing-features {
    margin-bottom: 30px;
}

.pricing-features ul {
    list-style: none;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
}

.pricing-features li i {
    margin-right: 10px;
    color: #4CAF50;
}

.pricing-features li .fa-times {
    color: #f44336;
}

.pricing-btn {
    width: 100%;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: rgba(10, 10, 15, 0.9);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(120, 40, 200, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(45deg, #7828c8, #ff6464, #7828c8);
    border-radius: 20px;
    opacity: 0.3;
    filter: blur(20px);
    z-index: -1;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.about-text p {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.about-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    position: relative;
    padding: 20px;
    background-color: rgba(20, 20, 30, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(120, 40, 200, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(120, 40, 200, 0.3);
    border-color: rgba(120, 40, 200, 0.5);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 5px;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background-color: rgba(10, 10, 15, 0.8);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 80% 20%, rgba(255, 100, 100, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.contact-content {
    display: flex;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.contact-form {
    flex: 1;
    background-color: rgba(20, 20, 30, 0.8);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(120, 40, 200, 0.2);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 5px;
    font-weight: 500;
    color: white;
}

.form-group input,
.form-group textarea {
    padding: 12px;
    border: 1px solid rgba(120, 40, 200, 0.3);
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    background-color: rgba(10, 10, 15, 0.5);
    color: white;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #7828c8;
    box-shadow: 0 0 0 2px rgba(120, 40, 200, 0.2);
    background-color: rgba(10, 10, 15, 0.8);
}

.contact-info {
    flex: 1;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 30px;
    background-color: rgba(20, 20, 30, 0.8);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(120, 40, 200, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(120, 40, 200, 0.1), transparent);
    transition: left 0.5s ease;
}

.info-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px rgba(120, 40, 200, 0.4);
    border-color: rgba(120, 40, 200, 0.6);
    background: linear-gradient(135deg, rgba(20, 20, 30, 0.9) 0%, rgba(30, 30, 45, 0.9) 100%);
}

.info-item:hover::before {
    left: 100%;
}

.info-item:hover .info-icon {
    transform: rotate(360deg) scale(1.1);
    box-shadow: 0 0 20px rgba(120, 40, 200, 0.5);
}

.info-item:hover .info-content h4 {
    color: #ff6464;
}

.info-item:hover .info-content p {
    color: #fff;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(120, 40, 200, 0.3);
    transition: all 0.5s ease;
    z-index: 1;
}

.info-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
    color: white;
}

.info-content p {
    color: rgba(255, 255, 255, 0.7);
}

.contact-link {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: #fff;
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.4s ease;
    box-shadow: 0 4px 10px rgba(120, 40, 200, 0.3);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.social-link:hover {
    transform: translateY(-5px) scale(1.15) rotate(360deg);
    box-shadow: 0 12px 30px rgba(120, 40, 200, 0.5);
}

.social-link:hover::before {
    width: 100%;
    height: 100%;
}

.social-link:hover i {
    color: #fff;
    transform: scale(1.2);
}

/* 页脚 */
.footer {
    background-color: rgba(10, 10, 15, 0.95);
    color: white;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(120, 40, 200, 0.2);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #7828c8, #ff6464, #7828c8, transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-logo {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: 20px;
}

.footer-logo .logo {
    color: white;
    justify-content: center;
}

.footer-logo p {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #7828c8, #ff6464);
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 15px;
}

.footer-links a::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 0;
    color: #7828c8;
    transition: all 0.3s ease;
    opacity: 0;
}

.footer-links a:hover {
    color: white;
    padding-left: 20px;
}

.footer-links a:hover::before {
    opacity: 1;
    left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(120, 40, 200, 0.2);
    color: rgba(255, 255, 255, 0.7);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        padding: 15px 0;
    }

    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .about-content {
        flex-direction: column;
    }

    .contact-content {
        flex-direction: column;
    }

    .pricing-card.featured {
        transform: none;
    }

    .about-stats {
        flex-direction: column;
        gap: 20px;
    }

    .contact-form {
        padding: 30px;
    }

    .info-item {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero-text h1 {
        font-size: 28px;
    }

    .features,
    .tools,
    .pricing,
    .about,
    .contact {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 24px;
    }

    .pricing-card {
        padding: 30px;
    }

    .contact-form {
        padding: 20px;
    }

    .info-item {
        padding: 10px;
    }

    .footer-content {
        gap: 30px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 视频模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background-color: rgba(20, 20, 30, 0.95);
    margin: 10% auto;
    padding: 20px;
    border: 1px solid rgba(120, 40, 200, 0.5);
    width: 80%;
    max-width: 800px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(120, 40, 200, 0.3);
    animation: fadeIn 0.3s ease;
}

/* 音乐播放列表模态框专用样式 */
#demoModal .modal-content {
    max-width: 650px;
    padding: 18px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: white;
    text-decoration: none;
}

.modal-body {
    margin-top: 15px;
}

/* 音乐播放列表模态框标题样式 */
#demoModal .modal-body h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

#demoModal .modal-body > p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

/* 服务条款内容样式 */
.terms-content {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 10px;
}

.terms-content h4 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: #ff6464;
    font-size: 16px;
}

.terms-content h4:first-child {
    margin-top: 0;
}

.terms-content p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
}

/* 服务条款模态框滚动条 */
.terms-content::-webkit-scrollbar {
    width: 6px;
}

.terms-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.terms-content::-webkit-scrollbar-thumb {
    background: rgba(120, 40, 200, 0.5);
    border-radius: 3px;
}

.terms-content::-webkit-scrollbar-thumb:hover {
    background: rgba(120, 40, 200, 0.7);
}

/* 付款模态框样式 */
.payment-modal {
    max-width: 850px;
}

.payment-modal h3 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 15px;
}

.price-highlight {
    color: #ff6464;
    font-weight: 700;
    font-size: 24px;
    text-shadow: 0 0 10px rgba(255, 100, 100, 0.3);
}

.payment-content {
    display: flex;
    gap: 25px;
    margin-top: 15px;
}

.payment-info {
    flex: 1;
    background-color: rgba(25, 25, 35, 0.8);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid rgba(120, 40, 200, 0.3);
}

.payment-info h4 {
    margin-bottom: 10px;
    margin-top: 20px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(120, 40, 200, 0.2);
}

.payment-info h4:first-child {
    margin-top: 0;
}

.payment-info ul {
    list-style: none;
    padding: 0;
    margin-bottom: 8px;
}

.payment-info li {
    margin-bottom: 6px;
    color: #ddd;
    position: relative;
    padding-left: 5px;
    line-height: 1.7;
    font-size: 14px;
}

.payment-info li::before {
    content: none;
}

.payment-contact {
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid rgba(120, 40, 200, 0.2);
    color: #ff6464;
    font-size: 14px;
    font-weight: 600;
    text-align: right;
}

.payment-qrcode {
    width: 320px;
    background-color: rgba(25, 25, 35, 0.8);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid rgba(120, 40, 200, 0.3);
    text-align: center;
}

.payment-qrcode h4 {
    margin-bottom: 15px;
    color: #fff;
    font-size: 18px;
}

.payment-qrcode img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.qrcode-extra {
    margin-top: 20px;
    text-align: left;
}

.service-time {
    margin-bottom: 15px;
    padding: 12px;
    background: rgba(120, 40, 200, 0.1);
    border-radius: 6px;
    border-left: 3px solid #7828c8;
}

.service-time p {
    margin: 5px 0;
    font-size: 13px;
    color: #ddd;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-time i {
    color: #7828c8;
    font-size: 14px;
    width: 16px;
}

.service-promise {
    margin-bottom: 12px;
    padding: 10px;
    background: rgba(255, 100, 100, 0.1);
    border-radius: 6px;
    border-left: 3px solid #ff6464;
}

.service-promise p {
    margin: 0;
    font-size: 13px;
    color: #ff6464;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.service-promise i {
    font-size: 14px;
}

.security-tip {
    padding: 10px;
    background: rgba(40, 167, 69, 0.1);
    border-radius: 6px;
    border-left: 3px solid #28a745;
}

.security-tip p {
    margin: 0;
    font-size: 12px;
    color: #28a745;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.security-tip i {
    font-size: 13px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .payment-content {
        flex-direction: column;
    }
    
    .payment-qrcode {
        width: 100%;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #7828c8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff6464;
}

/* 音乐播放列表样式 */
.playlist-container {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 15px;
}

.audio-player {
    background: linear-gradient(135deg, rgba(20, 20, 30, 0.95) 0%, rgba(30, 30, 45, 0.95) 100%);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(120, 40, 200, 0.4);
    box-shadow: 0 8px 25px rgba(120, 40, 200, 0.2);
}

.player-info {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    align-items: center;
}

.player-cover {
    width: 80px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

.player-details {
    flex: 1;
}

.current-title {
    font-size: 18px;
    color: #fff;
    margin-bottom: 4px;
    font-weight: 600;
}

.current-artist {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
}

.player-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    padding: 0 15px;
}

.player-controls-center {
    display: flex;
    align-items: center;
    gap: 15px;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.volume-slider-container {
    width: 100px;
    position: relative;
}

#volumeSlider {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

#volumeSlider:hover {
    background: rgba(255, 255, 255, 0.2);
}

#volumeSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7828c8, #ff6464);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(120, 40, 200, 0.5);
    transition: all 0.3s ease;
}

#volumeSlider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(120, 40, 200, 0.7);
}

#volumeSlider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7828c8, #ff6464);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px rgba(120, 40, 200, 0.5);
    transition: all 0.3s ease;
}

#volumeSlider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(120, 40, 200, 0.7);
}

.volume-btn {
    font-size: 16px !important;
    width: 40px !important;
    height: 40px !important;
    box-shadow: 0 4px 12px rgba(120, 40, 200, 0.3) !important;
}

.volume-btn:hover {
    box-shadow: 0 6px 16px rgba(120, 40, 200, 0.5) !important;
}

/* 响应式音量控制 */
@media (max-width: 768px) {
    .player-controls {
        flex-direction: column;
        gap: 15px;
        padding: 0 10px;
    }
    
    .player-controls-center {
        order: 1;
    }
    
    .volume-control {
        order: 2;
        width: 100%;
        justify-content: center;
        gap: 15px;
    }
    
    .volume-slider-container {
        width: 180px;
    }
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #7828c8 0%, #ff6464 100%);
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(120, 40, 200, 0.3);
    position: relative;
    overflow: hidden;
}

.control-btn::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 0.6s ease;
}

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

.control-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(120, 40, 200, 0.5);
}

.control-btn:active {
    transform: scale(0.95);
    box-shadow: 0 2px 8px rgba(120, 40, 200, 0.4);
}

.play-btn {
    width: 60px;
    height: 60px;
    font-size: 24px;
    box-shadow: 0 6px 20px rgba(255, 100, 100, 0.4);
}

.play-btn:hover {
    box-shadow: 0 8px 25px rgba(255, 100, 100, 0.6);
}

.player-progress {
    display: flex;
    align-items: center;
    gap: 15px;
}

.time-current,
.time-total {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    min-width: 45px;
    text-align: center;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    cursor: pointer;
    overflow: hidden;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(120, 40, 200, 0.2), rgba(255, 100, 100, 0.2));
    border-radius: 4px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #7828c8, #ff6464);
    width: 0%;
    border-radius: 4px;
    transition: width 0.1s linear;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 10px rgba(120, 40, 200, 0.5);
}

.progress-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.progress-bar:hover .progress-fill::after {
    opacity: 1;
}

.playlist {
    background: rgba(20, 20, 30, 0.8);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid rgba(120, 40, 200, 0.3);
    max-height: 280px;
    overflow-y: auto;
}

.playlist h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(120, 40, 200, 0.3);
}

.playlist-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.playlist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
}

.playlist-item:hover {
    background: rgba(120, 40, 200, 0.15);
    transform: translateX(5px);
}

.playlist-item.active {
    background: linear-gradient(90deg, rgba(120, 40, 200, 0.3), rgba(255, 100, 100, 0.2));
    border-left: 3px solid #7828c8;
}

.song-number {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    min-width: 22px;
    text-align: center;
}

.playlist-item.active .song-number {
    color: #ff6464;
    font-weight: 600;
}

.song-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.song-title {
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}

.song-artist {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.song-duration {
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    min-width: 45px;
    text-align: right;
}

/* 播放列表滚动条 */
.playlist::-webkit-scrollbar {
    width: 6px;
}

.playlist::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.playlist::-webkit-scrollbar-thumb {
    background: rgba(120, 40, 200, 0.5);
    border-radius: 3px;
}

.playlist::-webkit-scrollbar-thumb:hover {
    background: rgba(120, 40, 200, 0.7);
}

/* 响应式音乐播放器 */
@media (max-width: 768px) {
    .playlist-container {
        gap: 15px;
    }
    
    .audio-player {
        padding: 20px;
    }
    
    .player-info {
        flex-direction: column;
        text-align: center;
    }
    
    .player-cover {
        width: 80px;
        height: 80px;
    }
    
    .control-btn {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    .play-btn {
        width: 55px;
        height: 55px;
        font-size: 22px;
    }
    
    .playlist {
        padding: 15px;
    }
    
    .playlist-item {
        padding: 10px;
    }
    
    .song-title {
        font-size: 14px;
    }
}