/* ==================== 全局样式 ==================== */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #7b2ff7;
    --accent-color: #ff6b6b;
    --dark-bg: #0a0e27;
    --card-bg: #151b3d;
    --text-primary: #ffffff;
    --text-secondary: #a8b2d1;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #00d4ff 0%, #7b2ff7 100%);
    --gradient-3: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

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

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 汉堡菜单按钮（默认隐藏） */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 汉堡菜单激活状态 */
.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

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

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-2);
    transition: width 0.3s ease;
}

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

/* ==================== Hero 区域 ==================== */
.hero {
    padding: 150px 0 100px;
    background: radial-gradient(circle at 50% 0%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(123, 47, 247, 0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 2rem;
    animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: left 0.3s ease;
}

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

.btn-primary {
    background: var(--gradient-2);
    color: white;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* ==================== 特性卡片 ==================== */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(0, 212, 255, 0.2);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* ==================== 工作流程 ==================== */
.workflow {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(123, 47, 247, 0.05) 50%, transparent 100%);
}

.workflow-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.step:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

/* ==================== 佣金区域 ==================== */
.earn-commission {
    padding: 100px 0;
    background: var(--card-bg);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

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

.commission-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.commission-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.commission-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.commission-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.check-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

/* ==================== 交易所 ==================== */
.exchanges {
    padding: 100px 0;
}

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

.exchange-item {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.exchange-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(0, 212, 255, 0.2);
}

.exchange-logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.exchange-note {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

/* ==================== CTA 区域 ==================== */
.cta {
    padding: 100px 0;
    text-align: center;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--card-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    color: var(--text-secondary);
}

/* ==================== 响应式 ==================== */

/* 平板和手机端 */
@media (max-width: 768px) {
    /* 导航栏移动端优化 */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    }
    
    .nav-menu.active {
        max-height: 400px;
    }
    
    .nav-menu li {
        padding: 0.8rem 2rem;
        border-bottom: 1px solid rgba(0, 212, 255, 0.05);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        font-size: 1rem;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .commission-features {
        flex-direction: column;
        gap: 1rem;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .feature-card,
    .step-card {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}