/* ========================================
   Goa Game Register - 整合样式文件
   ======================================== */

/* Critical CSS - 关键样式 */
:root {
    --bg-primary: #1e1e2f;
    --bg-secondary: #2a2a3f;
    --bg-tertiary: #3a3a4f;
    --primary: #6c63ff;
    --accent: #ff4c60;
    --accent-secondary: #3be8b0;
    --text-primary: #ffffff;
    --text-secondary: #c5c5c5;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(108, 99, 255, 0.3);
    --transition: all 0.3s ease;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --font-sans: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    font-display: swap;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 4rem 0;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(30, 30, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(108, 99, 255, 0.2);
    will-change: transform;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.nav-logo h2 {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

.login-btn {
    background: linear-gradient(135deg, var(--primary), #5a52d5);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(108, 99, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    aspect-ratio: 400/378;
    max-width: 400px;
    margin: 0 auto;
}

.hero-image picture {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.hero-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    object-position: center;
    border-radius: 15px;
    box-shadow: var(--shadow-glow);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    will-change: transform;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #5a52d5);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid rgba(108, 99, 255, 0.1);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.card p {
    color: var(--text-secondary);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(108, 99, 255, 0.1);
}

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

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

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-image {
        max-width: 300px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .nav-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 0.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Loading states */
.fonts-loading {
    opacity: 0.8;
}

.fonts-loaded {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Optimize for GPU acceleration */
.header, .hero-section, .btn {
    will-change: transform;
}

/* Form styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

/* Alert styles */
.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(59, 232, 176, 0.1);
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

.alert-error {
    background: rgba(255, 76, 96, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.alert-warning {
    background: rgba(255, 76, 96, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

/* Table styles */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid rgba(108, 99, 255, 0.1);
}

.table th {
    background: var(--bg-secondary);
    color: var(--primary);
    font-weight: 600;
}

.table tr:hover {
    background: rgba(108, 99, 255, 0.05);
}

/* Code styles */
.code {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    color: var(--accent);
    border: 1px solid rgba(108, 99, 255, 0.1);
}

/* Print styles */
@media print {
    .header,
    .footer,
    .btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-section {
        min-height: auto;
        padding: 2rem 0;
    }
}

/* ========================================
   现代化首页中间内容样式
   ======================================== */

/* 注册步骤区域 */
.registration-steps {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.registration-steps::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(108, 99, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 76, 96, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.registration-steps h3 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

.content-section {
    margin-bottom: 4rem;
    position: relative;
    z-index: 2;
}

.content-section h4 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.content-section h4::before {
    content: '';
    width: 4px;
    height: 2rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 2px;
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* 游戏优势网格 */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: linear-gradient(135deg, rgba(42, 42, 63, 0.8), rgba(58, 58, 79, 0.8));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(108, 99, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

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

.benefit-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(108, 99, 255, 0.3);
    border-color: rgba(108, 99, 255, 0.5);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: white;
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.3);
    transition: all 0.3s ease;
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 30px rgba(108, 99, 255, 0.4);
}

.benefit-card h5 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.benefit-card ul {
    list-style: none;
    margin-top: 1rem;
}

.benefit-card ul li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.benefit-card ul li i {
    color: var(--accent);
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.benefit-card:hover ul li {
    color: var(--text-primary);
}

/* 步骤容器 */
.steps-container {
    margin-top: 4rem;
    position: relative;
    z-index: 2;
}

.steps-container h4 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary);
}

.step {
    background: linear-gradient(135deg, rgba(42, 42, 63, 0.9), rgba(58, 58, 79, 0.9));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: center;
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-secondary));
    border-radius: 20px 20px 0 0;
}

.step:hover {
    transform: translateX(10px);
    box-shadow: 0 15px 30px rgba(108, 99, 255, 0.2);
    border-color: rgba(108, 99, 255, 0.4);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.3);
    transition: all 0.3s ease;
    position: relative;
}

.step:hover .step-icon {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(108, 99, 255, 0.4);
}

.step-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 5px 10px rgba(255, 76, 96, 0.3);
}

.step h5 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* 特性区域 */
.features-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(59, 232, 176, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(108, 99, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.features-section h3 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.feature-card {
    background: linear-gradient(135deg, rgba(42, 42, 63, 0.9), rgba(58, 58, 79, 0.9));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(108, 99, 255, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 25px 50px rgba(108, 99, 255, 0.3);
    border-color: rgba(108, 99, 255, 0.5);
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 15px 30px rgba(108, 99, 255, 0.3);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(10deg);
    box-shadow: 0 20px 40px rgba(108, 99, 255, 0.4);
}

.feature-card h4 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 如何操作区域 */
.how-to-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.how-to-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 76, 96, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(59, 232, 176, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.how-to-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.how-to-card {
    background: linear-gradient(135deg, rgba(42, 42, 63, 0.9), rgba(58, 58, 79, 0.9));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 20px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.how-to-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 20px 20px 0 0;
}

.how-to-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(108, 99, 255, 0.2);
    border-color: rgba(108, 99, 255, 0.4);
}

.how-to-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1rem;
    text-align: center;
}

.how-to-card .section-intro {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(108, 99, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(108, 99, 255, 0.1);
    transition: all 0.3s ease;
}

.step-item:hover {
    background: rgba(108, 99, 255, 0.1);
    border-color: rgba(108, 99, 255, 0.2);
    transform: translateX(10px);
}

.step-item .step-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 5px 15px rgba(108, 99, 255, 0.3);
}

.step-content h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.step-content h4 strong {
    color: var(--accent);
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.highlight-link {
    color: var(--accent);
    font-weight: 600;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.highlight-link:hover {
    color: var(--primary);
}

.forgot-password {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 76, 96, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(255, 76, 96, 0.2);
}

.forgot-password p {
    color: var(--text-secondary);
    margin: 0;
    text-align: center;
}

.forgot-password strong {
    color: var(--accent);
}

/* CTA区域 */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 50%, rgba(108, 99, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section h3 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.cta-section h3 i {
    color: var(--accent);
    margin-right: 0.5rem;
}

.cta-section p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 2;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.cta-buttons .btn {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.cta-buttons .btn i {
    margin-right: 0.5rem;
}

.cta-buttons .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(108, 99, 255, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .how-to-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .registration-steps h3,
    .features-section h3,
    .how-to-section h3,
    .cta-section h3 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .benefit-card,
    .feature-card,
    .how-to-card {
        padding: 2rem;
    }
    
    .step {
        padding: 2rem;
    }
    
    .step-item {
        padding: 1rem;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* 应用动画 */
.benefit-card,
.feature-card,
.step,
.how-to-card {
    animation: fadeInUp 0.6s ease-out;
}

.benefit-card:nth-child(odd) {
    animation: slideInLeft 0.6s ease-out;
}

.benefit-card:nth-child(even) {
    animation: slideInRight 0.6s ease-out;
}

.step:nth-child(odd) {
    animation: slideInLeft 0.6s ease-out;
}

.step:nth-child(even) {
    animation: slideInRight 0.6s ease-out;
}

/* 悬停效果增强 */
.card-hover {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card-hover:hover {
    transform: translateY(-10px) scale(1.02);
}

/* 游戏光效 */
.gaming-glow {
    position: relative;
}

.gaming-glow::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary), var(--accent), var(--accent-secondary), var(--primary));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gaming-glow:hover::after {
    opacity: 1;
    animation: pulse 2s infinite;
}