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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #00f5ff 0%, #00dc82 100%);
    min-height: 100vh;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 220, 130, 0.1);
    z-index: 1000;
    padding: 0 20px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 24px;
    color: #00dc82;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    border-radius: 6px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
}

.nav-link:hover {
    color: #00dc82;
    background: rgba(0, 220, 130, 0.1);
}

/* 主要内容区域 */
.main-content {
    margin-top: 70px;
}

/* 英雄区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 80px;
    background: linear-gradient(135deg, #00f5ff 0%, #00dc82 100%);
    position: relative;
    overflow: hidden;
}

/* 背景图案 */
.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 英雄徽章 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    padding: 12px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 14px;
    font-weight: 500;
    align-self: flex-start;
}

.badge-icon {
    color: #FFE066;
}

/* 主要内容 */
.hero-main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: white;
}

.title-brand {
    display: block;
    font-size: 4rem;
    background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    text-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
}

.title-tagline {
    display: block;
    font-size: 2.2rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
}

.hero-subtitle-wrapper {
    position: relative;
    margin: 10px 0;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    color: #FFE066;
    margin: 0;
    position: relative;
    z-index: 1;
}

.subtitle-decoration {
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, #FFE066, transparent);
    border-radius: 2px;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    max-width: 500px;
}

/* CTA按钮 */
.hero-cta {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.cta-primary,
.cta-secondary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.cta-primary {
    background: rgba(255, 255, 255, 0.95);
    color: #00dc82;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.cta-primary:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.cta-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

/* 统计数据 */
.hero-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 16px 20px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-icon {
    font-size: 1.5rem;
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* 视觉装饰区域 */
.hero-visual {
    position: relative;
    height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* 直播卡片 */
.visual-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.95);
    padding: 16px 20px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    min-width: 200px;
    animation: cardFloat 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 40%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    right: 20%;
    animation-delay: 4s;
}

.card-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    flex-shrink: 0;
}

.card-content {
    flex: 1;
}

.card-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 2px;
}

.card-status {
    font-size: 12px;
    color: #666;
}

.card-viewers {
    font-size: 12px;
    font-weight: 600;
    color: #00dc82;
    background: rgba(0, 220, 130, 0.1);
    padding: 4px 8px;
    border-radius: 8px;
}

/* 浮动图标 */
.floating-icons {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.float-icon {
    position: absolute;
    font-size: 1.8rem;
    opacity: 0.7;
    animation: iconFloat 8s ease-in-out infinite;
}

.icon-1 { top: 15%; left: 20%; animation-delay: 0s; }
.icon-2 { top: 40%; left: 10%; animation-delay: 1.5s; }
.icon-3 { bottom: 30%; left: 30%; animation-delay: 3s; }
.icon-4 { top: 25%; left: 50%; animation-delay: 4.5s; }
.icon-5 { bottom: 15%; left: 45%; animation-delay: 6s; }

/* 动画 */
@keyframes cardFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.1); }
}

/* 按钮样式 */
.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: white;
    color: #00dc82;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}


/* 特性区域 */
.features-section {
    padding: 80px 20px;
    background: white;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.features-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.features-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 220, 130, 0.1);
    border: 1px solid rgba(0, 220, 130, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 220, 130, 0.15);
}

.card-primary {
    border-top: 4px solid #00dc82;
}

.card-secondary {
    border-top: 4px solid #667eea;
}

.card-accent {
    border-top: 4px solid #f093fb;
}

/* 卡片内容样式 */
.feature-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.feature-icon {
    font-size: 2.5rem;
}

.feature-badge {
    background: linear-gradient(135deg, #00dc82, #00f5ff);
    color: white;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-secondary .feature-badge {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.card-accent .feature-badge {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
    line-height: 1.3;
}

.feature-description {
    font-size: 1rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-highlight {
    display: inline-flex;
    align-items: center;
    background: #f1f5f9;
    color: #475569;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
}


/* CTA区域 */
.cta-section {
    padding: 100px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1.5" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.5;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-content {
    color: white;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    padding: 12px 24px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 30px;
}

.cta-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: linear-gradient(45deg, #FFE066, #FF6B6B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: 500;
}

.cta-check {
    font-size: 1.2rem;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

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

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: #00dc82;
}

.footer-text {
    color: #666;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-visual {
        height: 400px;
        order: -1;
    }
    
    .visual-card {
        position: relative;
        margin: 10px;
        position: static;
        display: inline-flex;
        margin: 10px 5px;
    }
    
    .card-1, .card-2, .card-3 {
        position: static;
        animation: none;
    }
    
    .floating-icons {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 14px;
        padding: 6px 12px;
    }
    
    .hero-section {
        padding: 100px 16px 60px;
    }
    
    .title-brand {
        font-size: 3rem;
    }
    
    .title-tagline {
        font-size: 1.8rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .cta-primary,
    .cta-secondary {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .stat-item {
        width: 100%;
        max-width: 200px;
        justify-content: center;
    }
    
    .features-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-card {
        padding: 30px 25px;
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .cta-features {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-visual {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 100px 16px 60px;
        min-height: 90vh;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .title-sub {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-badge,
    .cta-badge {
        font-size: 12px;
        padding: 10px 20px;
    }
    
    .features-section,
    .cta-section {
        padding: 60px 16px;
    }
    
    .features-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .feature-title {
        font-size: 1.3rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-subtitle {
        font-size: 1.1rem;
    }
}

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

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

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(4) {
    animation-delay: 0.6s;
}

/* 滚动平滑效果 */
html {
    scroll-behavior: smooth;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: #00dc82;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00b86f;
}