/* 915BET - 全新现代化样式系统 2025 */
@charset "UTF-8";

/* ==================== 配色方案 ==================== */
:root {
    /* 主色调 - 深蓝紫渐变 */
    --primary-dark: #0a0e27;
    --primary-blue: #1a1f4d;
    --primary-purple: #2d1b69;
    --accent-gold: #ffd700;
    --accent-cyan: #00d4ff;
    --accent-pink: #ff006e;
    
    /* 玻璃态效果 */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #b8c5d6;
    --text-muted: #7a8ba3;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-gold: linear-gradient(135deg, #f9d423 0%, #ff4e50 100%);
    --gradient-cyber: linear-gradient(135deg, #00d4ff 0%, #090979 50%, #ff006e 100%);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-dark);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 110, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            rgba(255, 255, 255, 0.01) 0px,
            rgba(255, 255, 255, 0.01) 1px,
            transparent 1px,
            transparent 2px
        );
    pointer-events: none;
    z-index: 1;
}

/* ==================== 容器系统 ==================== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

/* ==================== 导航栏 - 玻璃态固定顶部 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.95);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.navbar-logo:hover {
    transform: scale(1.05);
}

.navbar-logo img {
    width: 60px;
    height: 60px;
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.5));
    transition: filter 0.3s ease;
}

.navbar-logo:hover img {
    filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.8));
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}

.navbar-menu > li {
    position: relative;
}

.navbar-dropdown {
    position: relative;
}

.navbar-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.5rem 0;
    min-width: 200px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.navbar-dropdown:hover .navbar-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar-submenu li {
    list-style: none;
}

.navbar-submenu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.navbar-submenu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-gold);
    padding-left: 2rem;
}

.navbar-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: block;
}

.navbar-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--gradient-gold);
    transition: transform 0.3s ease;
}

.navbar-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.navbar-link:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.navbar-cta {
    display: flex;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--primary-dark);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 215, 0, 0.6);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ==================== Hero Section - 分屏设计 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    filter: blur(100px);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-highlight {
    color: var(--accent-gold);
    font-weight: 700;
}

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

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 16px;
}

.hero-image-wrapper {
    position: relative;
    z-index: 2;
}

.hero-image-container {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(255, 215, 0, 0.2);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    transition: transform 0.5s ease;
}

.hero-image-container:hover {
    transform: translateY(-10px) rotateX(5deg);
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    display: block;
}

/* 浮动装饰元素 */
.floating-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: float 6s ease-in-out infinite;
    pointer-events: none;
}

.floating-1 {
    width: 300px;
    height: 300px;
    background: rgba(102, 126, 234, 0.2);
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.floating-2 {
    width: 200px;
    height: 200px;
    background: rgba(255, 0, 110, 0.2);
    bottom: 20%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(5deg); }
    66% { transform: translate(-20px, 20px) rotate(-5deg); }
}

/* ==================== 内容区域 - 卡片式布局 ==================== */
.section {
    padding: 6rem 0;
    position: relative;
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* 特色卡片网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-cyber);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.feature-icon img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.feature-list li::before {
    content: '✓';
    color: var(--accent-gold);
    font-weight: 800;
    font-size: 1.2rem;
}

/* ==================== 统计数据展示 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.stat-value {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .navbar-menu {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .navbar-container {
        padding: 1rem;
    }
    
    .hero {
        padding-top: 80px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        text-align: center;
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
}

/* ==================== 工具类 ==================== */
.text-gradient-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-cyber {
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.img-fluid {
    max-width: 100%;
    height: auto;
}

.rounded-lg {
    border-radius: 20px;
}

.shadow-lg {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}