/* ==========================================
   Delta Force Pro - 深空紫/霓虹绿主题样式
   ========================================== */

:root {
    --primary-purple: #6D28D9;
    --primary-purple-light: #8B5CF6;
    --primary-purple-dark: #5B21B6;
    --neon-green: #10B981;
    --neon-green-light: #34D399;
    --neon-green-dark: #059669;
    --gold: #F59E0B;
    --gold-light: #FBBF24;
    
    --text-primary: #FFFFFF;
    --text-secondary: #E5E7EB;
    --text-tertiary: #9CA3AF;
    --text-quaternary: #6B7280;
    
    --bg-primary: #0F0A1E;
    --bg-secondary: #1A1229;
    --bg-tertiary: #251A35;
    --bg-card: rgba(26, 18, 41, 0.8);
    
    --border-light: rgba(139, 92, 246, 0.2);
    --border-primary: rgba(109, 40, 217, 0.3);
    --border-secondary: rgba(255, 255, 255, 0.1);
    
    --gradient-primary: linear-gradient(135deg, #6D28D9, #8B5CF6);
    --gradient-secondary: linear-gradient(135deg, #10B981, #34D399);
    --gradient-rainbow: linear-gradient(135deg, #6D28D9, #10B981, #F59E0B);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow-purple: 0 0 30px rgba(109, 40, 217, 0.4);
    --shadow-glow-green: 0 0 30px rgba(16, 185, 129, 0.4);
    
    --card-radius: 16px;
    --card-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --container-max-width: 1200px;
    --container-padding: 24px;
    --section-spacing: 100px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden !important;
    max-width: 100vw !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden !important;
    max-width: 100vw !important;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(109, 40, 217, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

::selection {
    background: var(--primary-purple);
    color: var(--text-primary);
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-purple);
    border-radius: 5px;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 10, 30, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-secondary);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(15, 10, 30, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--shadow-glow-purple);
}

.icon-inner {
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 20px solid var(--text-primary);
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-delta {
    color: var(--text-primary);
}

.logo-force {
    color: var(--neon-green-light);
    margin-left: 4px;
}

.logo-pro {
    color: var(--gold-light);
    margin-left: 4px;
    font-size: 14px;
    vertical-align: super;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
    background: rgba(109, 40, 217, 0.2);
}

.nav-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-buttons .btn {
    padding: 10px 24px;
    font-size: 14px;
}

.btn-login {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-login:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
    color: var(--text-primary);
}

.nav-actions .btn-primary {
    padding: 10px 24px;
    font-size: 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-purple);
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.6);
}

.btn-primary {
    background: var(--gradient-primary);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.mobile-menu-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 80%;
    max-width: 320px;
    background: var(--bg-secondary);
    padding: 30px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 9999;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.mobile-menu-overlay.active .mobile-menu {
    transform: translateX(0);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.mobile-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 32px;
    cursor: pointer;
}

.mobile-nav {
    list-style: none;
    margin-top: 60px;
}

.mobile-nav li {
    margin-bottom: 20px;
}

.mobile-nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    display: block;
    padding: 12px 0;
}

.mobile-actions {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-mobile-login,
.btn-mobile-download {
    display: block;
    width: 100%;
    padding: 14px 24px;
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    transition: all var(--transition-normal);
}

.btn-mobile-login {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

.btn-mobile-download {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
}

.hero-mega {
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-mega::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(109, 40, 217, 0.15) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes heroGlow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero-grid {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-main {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: 30px;
    margin-bottom: 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--neon-green-light);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.hero-main .hero-badge {
    display: flex;
    justify-content: center;
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--neon-green);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 15px var(--neon-green);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

.hero-title {
    font-size: 62px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 32px;
    letter-spacing: -2.5px;
    text-align: center;
}

.title-gradient {
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: gradientFlow 5s linear infinite;
    background-size: 200% 100%;
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 38px;
    text-align: center;
}

.hero-subtitle strong {
    color: var(--neon-green-light);
    font-weight: 700;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-hero-primary,
.btn-hero-secondary,
.btn-hero-video {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-hero-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
    position: relative;
    overflow: hidden;
}

.btn-hero-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-hero-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-hero-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 60px rgba(109, 40, 217, 0.8);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    position: relative;
}

.btn-hero-secondary::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--primary-purple);
    border-radius: 14px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.btn-hero-secondary:hover::after {
    opacity: 1;
    animation: borderPulse 1.5s ease-in-out infinite;
}

@keyframes borderPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.5; }
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-purple);
    transform: translateY(-4px);
}

.btn-hero-video {
    background: transparent;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-hero-video:hover {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--neon-green);
    transform: translateY(-4px);
}

.btn-play {
    width: 24px;
    height: 24px;
    background: var(--neon-green);
    color: var(--bg-primary);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.btn-icon {
    font-size: 20px;
}

.btn-arrow {
    transition: transform var(--transition-fast);
    font-size: 18px;
}

.btn-hero-primary:hover .btn-arrow {
    transform: translateX(5px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 45px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.stat-box {
    text-align: center;
    padding: 28px 24px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    border-radius: var(--card-radius);
    transition: var(--transition-normal);
    position: relative;
    backdrop-filter: blur(10px);
}

.stat-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    border-radius: var(--card-radius);
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.stat-box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.stat-box:hover::before {
    opacity: 0.1;
}

.stat-box:hover::after {
    opacity: 1;
}

.stat-box-highlight {
    background: rgba(109, 40, 217, 0.1);
    border-color: var(--primary-purple);
    border-width: 2px;
}

.stat-box-highlight::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: var(--gradient-primary);
    border-radius: var(--card-radius);
    opacity: 0.15;
    z-index: -1;
}

.stat-box:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-purple);
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(109, 40, 217, 0.3);
}

.stat-icon {
    font-size: 36px;
    margin-bottom: 12px;
    display: block;
    animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.stat-number {
    font-size: 52px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 10px;
    font-variant-numeric: tabular-nums;
    display: inline-block;
}

.stat-unit {
    font-size: 30px;
}

.stat-unit-inline {
    display: inline-block;
    font-size: 32px;
    font-weight: 700;
    color: var(--neon-green-light);
    margin-left: 4px;
    vertical-align: baseline;
}

.stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
    margin-top: 4px;
}

.stat-trend {
    font-size: 13px;
    color: var(--neon-green-light);
    font-weight: 600;
    margin-bottom: 12px;
}

.stat-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: auto;
}

.stat-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--neon-green), var(--neon-green-light));
    border-radius: 2px;
    animation: barGrow 2s ease-out;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.stat-bar-highlight {
    background: linear-gradient(90deg, var(--primary-purple), var(--gold));
    box-shadow: 0 0 10px rgba(109, 40, 217, 0.5);
}

@keyframes barGrow {
    from { width: 0 !important; }
}

.hero-features {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.feature-tag:hover {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--neon-green);
    transform: translateY(-2px);
}

.tag-icon {
    color: var(--neon-green-light);
    font-size: 16px;
}

.hero-trust {
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
}

.trust-text {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
    text-align: center;
}

.trust-logos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}

.trust-item {
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-align: center;
    transition: var(--transition-fast);
}

.trust-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-purple);
    color: var(--text-secondary);
    transform: translateY(-2px);
}

.hero-visual {
    display: none;
}

section {
    position: relative;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(109, 40, 217, 0.15);
    border: 1px solid var(--border-primary);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--neon-green-light);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

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

.section-description {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.advantages {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
}

.advantage-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.card-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 900;
    color: rgba(109, 40, 217, 0.15);
    line-height: 1;
}

.card-icon-large {
    font-size: 56px;
    margin-bottom: 20px;
    display: block;
}

.card-title-large {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
}

.card-description-large {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-features {
    list-style: none;
    padding: 0;
}

.card-features li {
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-tertiary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.card-features li:first-child {
    border-top: none;
}

.card-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--neon-green-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.card-link:hover {
    color: var(--neon-green);
    transform: translateX(5px);
}

.bg-layers {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(109, 40, 217, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
}

.bg-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(109, 40, 217, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(109, 40, 217, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.glow-1 {
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(109, 40, 217, 0.3) 0%, transparent 70%);
    animation-delay: 0s;
}

.glow-2 {
    top: 50%;
    right: -200px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
    animation-delay: -7s;
}

.glow-3 {
    bottom: -200px;
    left: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

.features-showcase {
    padding: var(--section-spacing) 0;
}

.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.features-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-primary);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
}

.features-content {
    position: relative;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.showcase-item {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.showcase-item:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.showcase-item .showcase-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.showcase-item h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.showcase-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.feature-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.showcase-card {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
}

.showcase-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-green);
    box-shadow: var(--shadow-glow-green);
}

.showcase-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.showcase-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.showcase-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 15px;
}

.showcase-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--neon-green-light);
    text-transform: uppercase;
}

.testimonials-mega {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.testimonials-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.stat-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.stat-number-large {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 10px;
    display: block;
}

.stat-stars {
    color: #FFD700;
    font-size: 20px;
    margin-bottom: 10px;
}

.stat-card .stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
}

.testimonial-stat-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.testimonial-stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.stat-icon-large {
    font-size: 48px;
    margin-bottom: 15px;
}

.stat-value-large {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label-large {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.stat-sub {
    font-size: 13px;
    color: var(--text-tertiary);
}

.testimonials-grid-mega {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.testimonial-card-large,
.testimonial-card-medium,
.testimonial-card-small {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.testimonial-card-large {
    grid-column: span 1;
    grid-row: span 1;
}

.testimonial-card-large:hover,
.testimonial-card-medium:hover,
.testimonial-card-small:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.card-badge {
    position: absolute;
    top: -12px;
    left: 30px;
    padding: 6px 18px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
}

.testimonial-card-large.featured {
    border-color: var(--primary-purple);
    border-width: 2px;
}

.user-avatar-large img,
.user-avatar-medium img,
.user-avatar-small img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.user-info-large,
.user-info-medium,
.user-info-small {
    flex: 1;
}

.user-name-large,
.user-name-medium,
.user-name-small {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.user-title-large,
.user-title-medium,
.user-title-small {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
}

.user-stats {
    display: flex;
    gap: 10px;
    font-size: 12px;
    color: var(--text-quaternary);
    margin-top: 5px;
}

.rating-large,
.rating-medium,
.rating-small {
    color: #FFD700;
    font-size: 16px;
    flex-shrink: 0;
}

.rating-small {
    font-size: 14px;
}

.testimonial-header-small {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.user-info-small {
    flex: 1;
    min-width: 0;
}

.testimonial-meta-large,
.testimonial-meta-medium,
.testimonial-meta-small {
    display: flex;
    gap: 15px;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-secondary);
    font-size: 12px;
    flex-wrap: wrap;
}

.testimonial-meta-large .date,
.testimonial-meta-medium .date {
    color: var(--text-quaternary);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar-large,
.user-avatar-medium,
.user-avatar-small {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    flex-shrink: 0;
}

.user-avatar-medium {
    width: 45px;
    height: 45px;
    font-size: 20px;
}

.user-avatar-small {
    width: 40px;
    height: 40px;
    font-size: 18px;
}

.user-info {
    flex: 1;
}

.user-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.user-meta {
    font-size: 13px;
    color: var(--text-tertiary);
}

.user-meta-small {
    font-size: 12px;
    color: var(--text-tertiary);
}

.testimonial-rating-large,
.testimonial-rating-medium,
.testimonial-rating-small {
    color: #FFD700;
    font-size: 16px;
}

.testimonial-rating-small {
    font-size: 14px;
    margin: 10px 0;
}

.testimonial-text-large {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}

.testimonial-text-medium {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 15px;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}

.testimonial-text-small {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-tertiary);
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}

.testimonial-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-secondary);
}

.verified-badge {
    font-size: 12px;
    color: var(--neon-green-light);
    font-weight: 600;
}

.helpful {
    font-size: 12px;
    color: var(--text-quaternary);
}

.testimonials-action {
    text-align: center;
}

.btn-view-more {
    display: inline-block;
    padding: 14px 32px;
    background: transparent;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.btn-view-more:hover {
    background: var(--primary-purple);
    border-color: var(--primary-purple);
    transform: translateY(-2px);
}

.pricing-mega {
    padding: var(--section-spacing) 0;
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
}

.toggle-btn {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-primary);
}

.toggle-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
}

.save-badge {
    padding: 2px 8px;
    background: var(--neon-green);
    color: var(--bg-primary);
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
}

.discount-badge {
    padding: 3px 10px;
    background: var(--neon-green);
    color: var(--bg-primary);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    margin-left: 8px;
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
}

.plan-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.plan-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
}

.pricing-price-mega {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
    margin: 25px 0 15px;
}

.price-symbol {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-tertiary);
}

.price-amount {
    font-size: 58px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.price-period {
    font-size: 16px;
    color: var(--text-tertiary);
}

.pricing-save {
    text-align: center;
    margin-bottom: 30px;
}

.original-price {
    font-size: 14px;
    color: var(--text-quaternary);
    text-decoration: line-through;
    margin-right: 10px;
}

.pricing-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 15px;
}

.btn-pricing-mega {
    display: block;
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    transition: all var(--transition-normal);
}

.btn-pricing-mega:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
    transform: translateY(-2px);
}

.btn-pricing-mega.primary {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.guarantee-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
}

.guarantee-card .guarantee-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.guarantee-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.guarantee-card p {
    font-size: 14px;
    color: var(--text-tertiary);
}

.pricing-grid-mega {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card-mega {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
    position: relative;
    transition: all var(--transition-normal);
}

.pricing-card-mega:hover {
    transform: translateY(-8px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.pricing-card-mega.featured {
    border-color: var(--primary-purple);
    border-width: 2px;
    box-shadow: var(--shadow-glow-purple);
    transform: scale(1.05);
}

.pricing-card-mega.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-badge-mega {
    position: absolute;
    top: -15px;
    right: 30px;
    padding: 6px 20px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
}

.pricing-header-mega {
    text-align: center;
    margin-bottom: 35px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border-secondary);
}

.pricing-name-mega {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 10px;
}

.pricing-desc-mega {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 25px;
}

.pricing-price-mega {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
    margin-bottom: 10px;
}

.currency {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-tertiary);
}

.amount {
    font-size: 64px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    font-size: 16px;
    color: var(--text-tertiary);
}

.save-amount {
    display: inline-block;
    font-size: 13px;
    color: var(--neon-green-light);
    font-weight: 600;
}

.pricing-features-mega {
    list-style: none;
    margin-bottom: 35px;
}

.pricing-features-mega li {
    padding: 15px 0;
    display: flex;
    gap: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-features-mega li:last-child {
    border-bottom: none;
}

.feature-icon {
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.feature-yes .feature-icon {
    color: var(--neon-green-light);
}

.feature-no .feature-icon {
    color: var(--text-quaternary);
}

.feature-text {
    flex: 1;
}

.feature-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 3px;
}

.feature-no .feature-name {
    color: var(--text-quaternary);
}

.feature-desc {
    font-size: 13px;
    color: var(--text-tertiary);
}

.pricing-btn-mega {
    display: block;
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    transition: all var(--transition-normal);
}

.pricing-btn-mega:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
    transform: translateY(-2px);
}

.pricing-btn-mega.primary {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.pricing-btn-mega.primary:hover {
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.6);
}

.pricing-guarantee {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 60px auto 0;
}

.guarantee-item {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
}

.guarantee-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.guarantee-item h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.guarantee-item p {
    font-size: 14px;
    color: var(--text-tertiary);
}

.faq-mega {
    padding: var(--section-spacing) 0;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.faq-cat-btn {
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-cat-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-primary);
}

.faq-cat-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
}

.faq-grid-mega {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item-large,
.faq-item-medium {
    margin-bottom: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.faq-item-mega {
    margin-bottom: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.faq-question-large,
.faq-question-medium {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    transition: background var(--transition-fast);
}

.faq-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow-purple);
}

.faq-item-mega {
    margin-bottom: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.faq-question-mega {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-question-mega:hover {
    background: rgba(109, 40, 217, 0.1);
}

.faq-question-mega h3,
.faq-question-large h3,
.faq-question-medium h3 {
    font-size: 18px;
    font-weight: 600;
    flex: 1;
}

.faq-question-large h3 {
    font-size: 20px;
}

.faq-answer-large,
.faq-answer-medium {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-item-large.open .faq-answer-large,
.faq-item-medium.open .faq-answer-medium {
    max-height: 2000px;
    transition: max-height 0.6s ease-in;
}

.faq-answer-large p,
.faq-answer-medium p {
    padding: 0 30px 25px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.faq-answer-large ul,
.faq-answer-medium ul {
    padding: 0 30px 25px 50px;
    list-style: none;
}

.faq-answer-large ul li,
.faq-answer-medium ul li {
    padding: 8px 0;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-answer-large ul li::before,
.faq-answer-medium ul li::before {
    content: '✓';
    position: absolute;
    left: -20px;
    color: var(--neon-green-light);
    font-weight: 700;
}

.faq-answer-large strong,
.faq-answer-medium strong {
    color: var(--text-primary);
}

.comparison-detail {
    margin: 20px 0;
    padding: 20px;
    background: rgba(109, 40, 217, 0.05);
    border-radius: var(--card-radius);
    border-left: 3px solid var(--primary-purple);
}

.comparison-detail h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 15px;
}

.comparison-detail ul {
    list-style: none;
    padding-left: 0;
}

.comparison-detail ul li {
    padding: 8px 0;
}

.faq-more {
    text-align: center;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-secondary);
}

.faq-more p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.btn-faq-support,
.btn-faq-tutorial {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-normal);
    margin: 0 10px;
}

.btn-faq-support {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-purple);
}

.btn-faq-tutorial {
    background: transparent;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
}

.faq-more .or {
    display: inline-block;
    margin: 0 5px;
    color: var(--text-tertiary);
}

.faq-question-mega h3 {
    font-size: 18px;
    font-weight: 600;
}

.faq-toggle {
    font-size: 28px;
    font-weight: 300;
    color: var(--primary-purple);
    transition: transform var(--transition-fast);
}

.faq-item-large.open .faq-toggle,
.faq-item-medium.open .faq-toggle,
.faq-item-mega.open .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer-mega {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item-mega.active .faq-answer-mega {
    max-height: 500px;
}

.faq-answer-mega p {
    padding: 0 30px 25px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.cta-mega {
    padding: 80px 0;
    text-align: center;
}

.cta-content-mega {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title-mega {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.cta-desc-mega {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 45px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 30px;
    font-size: 17px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
    transition: all var(--transition-normal);
}

.btn-cta-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 50px rgba(109, 40, 217, 0.7);
}

.btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 18px 40px;
    background: transparent;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 30px;
    font-size: 17px;
    font-weight: 700;
    transition: all var(--transition-normal);
}

.btn-cta-secondary:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
    transform: translateY(-4px);
}

.cta-features {
    display: flex;
    gap: 30px;
    justify-content: center;
    font-size: 14px;
    color: var(--text-tertiary);
}

.cta-feature-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-mega {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-secondary);
    padding: 60px 0 30px;
}

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-secondary);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-about {
    max-width: 400px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
    align-items: start;
}

.footer-brand {
    max-width: 100%;
}

.footer-trust {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 10px;
}

.footer-links-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.footer-links-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 300px;
    margin: 0 auto;
}

.footer-links-col {
    text-align: center;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-slogan {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 25px;
}

.footer-trust {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-secondary);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.badge-icon {
    font-size: 18px;
}

.footer-brand {
    max-width: 100%;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-slogan {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 25px;
}

.footer-trust {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 10px;
}

.footer-links-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
}

.footer-middle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    padding: 40px 0;
    border-top: 1px solid var(--border-secondary);
    border-bottom: 1px solid var(--border-secondary);
    margin-bottom: 30px;
}

.footer-social h4 {
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-contact h4 {
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-social h4 {
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    border-radius: 8px;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
    color: var(--text-primary);
}

.footer-contact h4 {
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-icon {
    font-size: 18px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-secondary);
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.copyright {
    font-size: 14px;
    color: var(--text-quaternary);
}

.legal-links {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.copyright {
    font-size: 14px;
    color: var(--text-quaternary);
}

.legal-links {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.legal-links a {
    color: var(--text-quaternary);
    text-decoration: none;
    font-size: 13px;
    transition: color var(--transition-fast);
}

.legal-links a:hover {
    color: var(--text-tertiary);
}

.footer-cert {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 13px;
    color: var(--text-quaternary);
}

.footer-cert {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 13px;
    color: var(--text-quaternary);
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-purple-light);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-quaternary);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: var(--text-quaternary);
    text-decoration: none;
    font-size: 13px;
}

.footer-bottom-links a:hover {
    color: var(--text-tertiary);
}

.card-large {
    grid-column: span 3;
}

.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-glow-purple);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.6);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.step-card {
    padding: 30px 25px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
    position: relative;
    transition: all var(--transition-normal);
}

.step-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
}

.step-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.step-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    position: absolute;
    top: 50%;
    left: calc(20% - 15px);
    width: calc(20% - 30px);
    height: 2px;
    background: linear-gradient(to right, var(--primary-purple), var(--neon-green));
}

@media (max-width: 1024px) {
    :root {
        --container-padding: 20px;
        --section-spacing: 80px;
    }
    
    .hero-title {
        font-size: 52px;
    }
    
    .section-title {
        font-size: 40px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid-mega {
        grid-template-columns: 1fr;
    }
    
    .testimonials-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid-mega {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .pricing-card-mega.featured {
        transform: none;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions,
    .nav-buttons {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-mega {
        padding: 120px 0 80px !important;
    }
    
    .page-hero {
        padding: 120px 0 80px !important;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary,
    .btn-hero-video {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr !important;
    }
    
    .feature-showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid-mega {
        grid-template-columns: 1fr !important;
    }
    
    .testimonial-card-large {
        grid-column: 1 !important;
        grid-row: auto !important;
    }
    
    .pricing-grid-mega {
        grid-template-columns: 1fr !important;
    }
    
    .pricing-guarantee {
        grid-template-columns: 1fr;
    }
    
    .faq-grid-mega {
        grid-template-columns: 1fr !important;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .footer-links-group {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .footer-middle {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .hero-features {
        gap: 12px;
    }
    
    .feature-tag {
        font-size: 13px;
        padding: 8px 16px;
    }
    
    .trust-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px !important;
    }
    
    .section-title {
        font-size: 28px !important;
    }
    
    .hero-stats {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    
    .stat-number {
        font-size: 36px !important;
    }
    
    .testimonials-stats {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        gap: 20px !important;
    }
    
    .advantage-card {
        padding: 30px 20px !important;
    }
    
    .card-number {
        font-size: 48px !important;
    }
    
    .card-icon-large {
        font-size: 48px !important;
    }
    
    .advantage-card h3 {
        font-size: 20px !important;
    }
    
    .pricing-features-mega[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
    
    .hero-features {
        gap: 8px;
    }
    
    .feature-tag {
        font-size: 12px !important;
        padding: 6px 12px !important;
    }
    
    .trust-logos {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links-group {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) and (orientation: landscape) {
    .hero-mega,
    .page-hero {
        padding: 120px 0 80px !important;
    }
    
    .hero-stats {
        grid-template-columns: repeat(4, 1fr) !important;
    }
    
    .hero-features {
        gap: 10px;
    }
}

@media print {
    .navbar,
    .mobile-menu,
    .back-to-top,
    .cta-mega {
        display: none;
    }
}

/* ==========================================
   新增页面样式
   ========================================== */

.page-hero {
    padding: 120px 0 80px;
    text-align: center;
}

.page-hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.features-overview {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.features-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-stat-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.feature-stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.feature-section {
    padding: var(--section-spacing) 0;
}

.feature-section-alt {
    background: var(--bg-secondary);
}

.feature-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-detail-card {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.feature-detail-card:hover {
    transform: translateY(-6px);
    border-color: var(--neon-green);
    box-shadow: var(--shadow-glow-green);
}

.detail-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-detail-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-detail-card p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

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

.feature-detail-card ul li {
    padding: 8px 0;
    color: var(--text-tertiary);
    font-size: 14px;
}

.visual-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.visual-feature-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.visual-feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.visual-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.visual-feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.visual-feature-card p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 14px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tags .tag {
    padding: 4px 12px;
    background: rgba(109, 40, 217, 0.15);
    border: 1px solid rgba(109, 40, 217, 0.3);
    border-radius: 12px;
    font-size: 11px;
    color: var(--neon-green-light);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.analytics-card {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.analytics-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.analytics-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.analytics-icon {
    font-size: 40px;
}

.analytics-card h3 {
    font-size: 20px;
    font-weight: 700;
}

.analytics-card p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

.analytics-card ul {
    list-style: none;
    padding: 0;
}

.analytics-card ul li {
    padding: 8px 0;
    color: var(--text-tertiary);
    font-size: 14px;
}

.teamwork-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.teamwork-card-large {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
}

.teamwork-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.teamwork-card-large h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.teamwork-card-large p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
}

.teamwork-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.detail-item {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 5px;
}

.detail-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--neon-green-light);
}

.teamwork-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.teamwork-card {
    padding: 25px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.teamwork-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-purple);
}

.teamwork-icon-small {
    font-size: 36px;
    margin-bottom: 15px;
}

.teamwork-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.teamwork-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

.feature-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-list-category {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
}

.category-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.feature-list li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-list li:last-child {
    border-bottom: none;
}

.pricing-comparison {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.comparison-table thead {
    background: var(--gradient-primary);
}

.comparison-table th {
    padding: 20px;
    text-align: left;
    font-weight: 700;
    color: var(--text-primary);
}

.comparison-table td {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border-secondary);
    color: var(--text-secondary);
}

.comparison-table tbody tr:hover {
    background: rgba(109, 40, 217, 0.1);
}

.pricing-faq {
    padding: var(--section-spacing) 0;
}

.download-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.download-stat {
    text-align: center;
}

.download-stat .stat-value {
    font-size: 32px;
    font-weight: 900;
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.download-stat .stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
}

.version-info {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.version-card {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
}

.version-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-secondary);
}

.version-badge {
    display: inline-block;
    padding: 6px 20px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 20px;
}

.version-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 10px;
}

.version-date {
    color: var(--text-tertiary);
    font-size: 14px;
}

.version-features h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.update-list li {
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.update-list li:last-child {
    border-bottom: none;
}

.version-actions {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    justify-content: center;
}

.btn-download-primary {
    padding: 16px 40px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-purple);
}

.btn-download-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.6);
}

.btn-download-secondary {
    padding: 16px 40px;
    background: transparent;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    transition: all var(--transition-normal);
}

.btn-download-secondary:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-purple);
}

.system-requirements {
    padding: var(--section-spacing) 0;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.requirement-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    text-align: center;
}

.requirement-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.requirement-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

.requirement-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.requirement-card ul li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.download-steps {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.version-history {
    padding: var(--section-spacing) 0;
}

.history-list {
    max-width: 900px;
    margin: 0 auto;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 25px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.history-item:hover {
    transform: translateX(10px);
    border-color: var(--primary-purple);
}

.history-version {
    font-size: 20px;
    font-weight: 700;
    color: var(--neon-green-light);
    min-width: 100px;
}

.history-date {
    color: var(--text-tertiary);
    min-width: 120px;
}

.history-desc {
    flex: 1;
    color: var(--text-secondary);
}

.history-download {
    padding: 8px 20px;
    background: rgba(109, 40, 217, 0.2);
    border: 1px solid var(--primary-purple);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.history-download:hover {
    background: var(--primary-purple);
}

.download-faq {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.tutorial-nav {
    padding: 30px 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-secondary);
    position: sticky;
    top: 82px;
    z-index: 100;
}

.tutorial-nav-list {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 10px 0;
}

.tutorial-nav-item {
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    border-radius: 25px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.tutorial-nav-item:hover,
.tutorial-nav-item.active {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
    color: var(--text-primary);
}

.tutorial-section {
    padding: var(--section-spacing) 0;
}

.tutorial-section-alt {
    background: var(--bg-secondary);
}

.tutorial-content-grid {
    display: grid;
    gap: 30px;
}

.tutorial-card-large {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
}

.tutorial-card-large h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.tutorial-card-large p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.tutorial-note {
    padding: 15px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 8px;
    margin-top: 20px;
    color: var(--text-secondary);
}

.tutorial-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.tutorial-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-secondary);
}

.tutorial-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--neon-green-light);
    font-weight: 700;
}

.feature-tutorial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-tutorial-card {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
}

.tutorial-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-tutorial-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 25px;
}

.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tutorial-step {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.step-num {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.tutorial-step p {
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

.advanced-tutorial-list {
    display: grid;
    gap: 30px;
}

.advanced-tutorial-item {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
}

.advanced-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.advanced-header h3 {
    font-size: 24px;
    font-weight: 700;
}

.advanced-badge {
    padding: 6px 16px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    color: var(--neon-green-light);
}

.advanced-tutorial-item p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.advanced-tutorial-item ul {
    list-style: none;
    padding: 0;
}

.advanced-tutorial-item ul li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-secondary);
}

.advanced-tutorial-item ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--neon-green-light);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tip-card {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.tip-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.tip-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.tip-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.tip-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.troubleshooting-list {
    display: grid;
    gap: 25px;
}

.troubleshooting-item {
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
}

.troubleshooting-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--neon-green-light);
}

.troubleshooting-item ul {
    list-style: none;
    padding: 0;
}

.troubleshooting-item ul li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-secondary);
}

.troubleshooting-item ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--neon-green-light);
    font-weight: 700;
}

.support-channels {
    padding: var(--section-spacing) 0;
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.channel-card {
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius);
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all var(--transition-normal);
}

.channel-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.channel-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.channel-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
}

.channel-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.channel-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-tertiary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 50%;
}

.status-dot.online {
    background: var(--neon-green);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

.channel-btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 700;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-purple);
}

.channel-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(109, 40, 217, 0.6);
}

.contact-form-section {
    padding: var(--section-spacing) 0;
    background: var(--bg-secondary);
}

.contact-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form {
    padding: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-secondary);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-purple);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.6);
}

.service-hours {
    padding: 60px 0;
}

.service-hours-card {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--card-radius-lg);
    backdrop-filter: blur(10px);
    text-align: center;
}

.service-hours-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
}

.hours-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.hours-item {
    text-align: center;
}

.hours-label {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}

.hours-time {
    font-size: 18px;
    font-weight: 700;
    color: var(--neon-green-light);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

/* 游戏截图区块 */
.game-screenshots {
    padding: var(--section-spacing) 0;
    background: transparent;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.screenshot-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--card-radius-lg);
    transition: all var(--transition-normal);
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    backdrop-filter: blur(10px);
    padding: 0;
}

.screenshot-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-glow-purple);
}

.screenshot-image {
    position: relative;
    width: 100%;
    padding-bottom: 66.67%;
    overflow: hidden;
    border-radius: var(--card-radius);
    background: var(--bg-card);
}

.screenshot-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.screenshot-card:hover .screenshot-image img {
    transform: scale(1.05);
}

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.screenshot-card:hover .screenshot-overlay {
    opacity: 1;
}

.screenshot-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: var(--shadow-glow-purple);
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .features-stats-grid,
    .download-stats,
    .requirements-grid,
    .channels-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-detail-grid,
    .feature-tutorial-grid,
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .teamwork-features {
        grid-template-columns: 1fr;
    }
    
    .feature-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hours-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-stats-grid,
    .download-stats,
    .requirements-grid,
    .channels-grid,
    .feature-list-grid {
        grid-template-columns: 1fr;
    }
    
    .tutorial-nav-list {
        flex-direction: column;
    }
    
    .version-actions {
        flex-direction: column;
    }
    
    .hours-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}