/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #00d4ff;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #00d4ff;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #ff0080);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #ffffff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 0, 128, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    align-items: center;
    justify-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, #00d4ff 0%, #ff0080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: #b0b0b0;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #ff0080 100%);
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: #00d4ff;
}

.btn-secondary:hover {
    background: #00d4ff;
    transform: translateY(-3px);
}

/* DJ界面可视化 */
.dj-interface {
    display: flex;
    align-items: center;
    gap: 2rem;
    perspective: 1000px;
}

.deck {
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transform: rotateY(-15deg);
    transition: transform 0.3s ease;
}

.deck:hover {
    transform: rotateY(-5deg) scale(1.05);
}

.waveform {
    width: 200px;
    height: 80px;
    background: linear-gradient(90deg, #00d4ff, #ff0080);
    border-radius: 10px;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.waveform::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 2px,
        rgba(255, 255, 255, 0.1) 2px,
        rgba(255, 255, 255, 0.1) 4px
    );
    animation: wave 2s ease-in-out infinite;
}

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

.controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.knob {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(145deg, #2a2a4e, #1a1a3e);
    border: 2px solid #00d4ff;
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.knob:hover {
    transform: scale(1.1);
}

.knob::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 20px;
    background: #00d4ff;
    border-radius: 2px;
}

.crossfader {
    width: 8px;
    height: 120px;
    background: linear-gradient(to bottom, #00d4ff, #ff0080);
    border-radius: 4px;
    position: relative;
}

.crossfader::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 20px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 功能特性 */
.features {
    padding: 6rem 0;
    background: rgba(26, 26, 46, 0.5);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #00d4ff, #ff0080);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #00d4ff, #ff0080);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #ffffff;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.feature-card p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 下载区域 */
.download {
    padding: 6rem 0;
    background: rgba(22, 33, 62, 0.5);
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.download-card {
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 212, 255, 0.2);
}

.download-header {
    margin-bottom: 1.5rem;
}

.download-header i {
    font-size: 3rem;
    color: #00d4ff;
    margin-bottom: 1rem;
}

.download-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
}

.download-info {
    margin-bottom: 2rem;
}

.download-info p {
    color: #b0b0b0;
    margin-bottom: 0.5rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #00d4ff, #ff0080);
    color: #ffffff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.system-requirements {
    background: rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.system-requirements h3 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #00d4ff;
}

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

.requirement {
    color: #b0b0b0;
    padding: 0.5rem 0;
}

.requirement strong {
    color: #ffffff;
}

/* 支持区域 */
.support {
    padding: 6rem 0;
    background: rgba(26, 26, 46, 0.5);
}

.support-content {
    text-align: center;
}

.support-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.support-info > p {
    color: #b0b0b0;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.support-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.support-method {
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.support-method:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 212, 255, 0.2);
}

.support-method i {
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 1rem;
}

.support-method h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.support-method p {
    color: #b0b0b0;
}

/* 页脚 */
.footer {
    background: rgba(10, 10, 10, 0.95);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #00d4ff;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #b0b0b0;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #00d4ff;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00d4ff, #ff0080);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    color: #b0b0b0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(10, 10, 10, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .dj-interface {
        flex-direction: column;
        gap: 1rem;
    }
    
    .deck {
        transform: none;
    }
    
    .deck:hover {
        transform: scale(1.05);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .support-methods {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        justify-items: center;
    }
    .hero-visual {
        justify-content: center;
        margin-top: 1.5rem;
    }
}

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

::-webkit-scrollbar-track {
    background: #1a1a2e;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #00d4ff, #ff0080);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #00b8e6, #e6007a);
}

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

.feature-card,
.download-card,
.support-method {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.hero-screenshot {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

@media (max-width: 900px) {
    .hero-screenshot {
        display: none !important;
    }
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}