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

html {
    overflow-x: hidden;
    max-width: 100vw;
}

/* 通用容器溢出控制 */
section, div, main, header, footer {
    max-width: 100vw;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: 
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(217, 70, 239, 0.3) 0%, transparent 50%),
        linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 25%, #16213e 50%, #0f3460 75%, #1a1a2e 100%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    width: 100%;
    max-width: 100vw;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(1px 1px at 25% 25%, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(1px 1px at 75% 75%, rgba(99, 102, 241, 0.5), transparent),
        radial-gradient(2px 2px at 50% 10%, rgba(139, 92, 246, 0.4), transparent),
        radial-gradient(1px 1px at 90% 40%, rgba(217, 70, 239, 0.4), transparent),
        radial-gradient(1px 1px at 10% 90%, rgba(255, 255, 255, 0.3), transparent);
    background-size: 400px 400px, 500px 500px, 300px 300px, 450px 450px, 350px 350px;
    animation: cosmic-twinkle 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes cosmic-twinkle {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    33% { opacity: 1; transform: scale(1.05); }
    66% { opacity: 0.8; transform: scale(0.95); }
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon svg {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: white;
    letter-spacing: -0.5px;
}

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

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: white;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
}

.nav-user:hover {
    opacity: 0.8;
}

.user-icon svg {
    width: 20px;
    height: 20px;
}

/* 主要内容区域 */
.main {
    padding-top: 80px;
    position: relative;
    z-index: 10;
}

.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 40px;
    gap: 80px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 30%, #cbd5e1 60%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    margin-bottom: 40px;
    letter-spacing: -3px;
    text-shadow: 0 0 80px rgba(255, 255, 255, 0.3);
    position: relative;
}

.hero-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1), rgba(217, 70, 239, 0.1));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: title-glow 4s ease-in-out infinite;
}

@keyframes title-glow {
    0%, 100% { opacity: 0; }
    50% { opacity: 0.3; }
}

.certification {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 48px;
}

.cert-icon svg {
    width: 24px;
    height: 24px;
}

.cert-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 500;
}

.features {
    display: flex;
    gap: 60px;
    margin-bottom: 64px;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.feature-circle {
    width: 140px;
    height: 140px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 20px;
}

.feature-number {
    font-size: 42px;
    font-weight: 700;
    color: white;
    line-height: 0.9;
    margin-bottom: 4px;
    text-align: center;
}

.feature-unit {
    font-size: 18px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1;
    text-align: center;
    margin-top: 2px;
}

.feature-circle-large {
    width: 160px;
    height: 160px;
    padding: 18px;
}

.feature-number-small {
    font-size: 32px;
    margin-bottom: 6px;
}

.feature-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 500;
}

.download-buttons {
    display: flex;
    gap: 24px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 40px;
    border: none;
    border-radius: 60px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;

    letter-spacing: 1px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
}

.download-btn.primary {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: #6366f1;
    box-shadow: 
        0 15px 50px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
}

.download-btn.primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 60px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.download-btn.primary:hover::before {
    opacity: 1;
}

.download-btn.primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 25px 70px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 0 60px rgba(99, 102, 241, 0.4);
}

.download-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    position: relative;
}

.download-btn.secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: 60px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.download-btn.secondary:hover::before {
    opacity: 1;
}

.download-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 25px 70px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.3),
        0 0 60px rgba(255, 255, 255, 0.2);
}

.btn-icon {
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.appesteem-badge {
    position: absolute;
    top: -5px;
    right: 18px;
    background: #FFD700;
    color: #333;
    font-size: 10px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
    white-space: nowrap;
}

/* 右侧图片展示区域 */
.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-main-image {
    max-width: 100%;
    max-height: 600px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.3));
    animation: float 3s ease-in-out infinite;
}

/* 背景装饰元素 */
.bg-decorations {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.bg-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
}

.bg-circle-1 {
    width: 300px;
    height: 300px;
    top: 20%;
    left: -150px;
    background: rgba(139, 92, 246, 0.3);
}

.bg-circle-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    right: -100px;
    background: rgba(217, 70, 239, 0.3);
}

.bg-circle-3 {
    width: 150px;
    height: 150px;
    top: 60%;
    left: 20%;
    background: rgba(99, 102, 241, 0.2);
}

.bg-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 300px;
    background: linear-gradient(to top, rgba(139, 92, 246, 0.4), transparent);
}

/* 快连体验模块 */
.fast-connect-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.fast-connect-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.fast-connect-content {
    flex: 1;
    max-width: 600px;
}

.fast-connect-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.fast-connect-badge i {
    font-size: 16px;
}

.fast-connect-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.fast-connect-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

.fast-connect-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.fast-connect-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.15));
    animation: float-gentle 4s ease-in-out infinite;
}

@keyframes float-gentle {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* 全球覆盖模块 */
.global-coverage-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.global-coverage-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.global-coverage-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.global-coverage-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.1));
    animation: float-gentle 5s ease-in-out infinite;
}

.global-coverage-content {
    flex: 1;
    max-width: 600px;
}

.global-coverage-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.global-coverage-badge i {
    font-size: 16px;
}

.global-coverage-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.global-coverage-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

/* 安全认证模块 */
.security-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.security-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.security-content {
    flex: 1;
    max-width: 600px;
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.security-badge i {
    font-size: 16px;
}

.security-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.security-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

.security-link {
    color: #6366f1;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.security-link:hover {
    color: #4f46e5;
    border-bottom-color: #6366f1;
}

.security-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.15));
    animation: float-gentle 6s ease-in-out infinite;
}

/* 免费试用模块 */
.free-trial-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.free-trial-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.free-trial-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.free-trial-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.1));
    animation: float-gentle 7s ease-in-out infinite;
}

.free-trial-content {
    flex: 1;
    max-width: 600px;
}

.free-trial-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.free-trial-badge i {
    font-size: 16px;
}

.free-trial-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.free-trial-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

/* 跨平台支持模块 */
.cross-platform-section {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.cross-platform-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.cross-platform-content {
    flex: 1;
    max-width: 600px;
}

.cross-platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.cross-platform-badge i {
    font-size: 16px;
}

.cross-platform-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.cross-platform-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

.cross-platform-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cross-platform-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.1));
    animation: float-gentle 8s ease-in-out infinite;
}

/* 客服支持模块 */
.customer-support-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.customer-support-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.customer-support-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.customer-support-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.1));
    animation: float-gentle 9s ease-in-out infinite;
}

.customer-support-content {
    flex: 1;
    max-width: 600px;
}

.customer-support-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.customer-support-badge i {
    font-size: 16px;
}

.customer-support-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.customer-support-description {
    font-size: 18px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 0;
}

/* 用户评价模块 */
.testimonials-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    position: relative;
    overflow: hidden;
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
}

.testimonials-title {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.testimonials-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto 60px;
    transition: all 0.3s ease;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonials-carousel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.carousel-btn i {
    font-size: 18px;
}

.testimonials-wrapper {
    width: min(500px, 90vw);
    overflow: hidden;
    position: relative;
    max-width: 100%;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s ease;
    width: calc(100px * 5);
    max-width: none;
}

.testimonial-item {
    width: 100px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.5;
    transition: all 0.3s ease;
    transform: scale(0.8);
}

.testimonial-item.active {
    opacity: 1;
    transform: scale(1);
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 16px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.testimonial-item.active .testimonial-avatar {
    border-color: white;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

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

.testimonial-source {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* 下载区域模块 */
.download-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
}

.download-section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.download-buttons-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    justify-items: center;
}

.download-platform-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    min-width: min(200px, 45vw);
    position: relative;
    overflow: hidden;
}

.download-platform-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.download-platform-btn:hover::before {
    left: 100%;
}

.download-platform-btn.pc {
    background: linear-gradient(135deg, #4F46E5, #6366F1);
    color: white;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.3);
}

.download-platform-btn.pc:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(79, 70, 229, 0.4);
}

.download-platform-btn.ios {
    background: linear-gradient(135deg, #8B5CF6, #A855F7);
    color: white;
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.download-platform-btn.ios:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.4);
}

.download-platform-btn.android {
    background: linear-gradient(135deg, #06B6D4, #0891B2);
    color: white;
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.3);
}

.download-platform-btn.android:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(6, 182, 212, 0.4);
}

.download-platform-btn.mac {
    background: linear-gradient(135deg, #EC4899, #F97316);
    color: white;
    box-shadow: 0 8px 32px rgba(236, 72, 153, 0.3);
}

.download-platform-btn.mac:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(236, 72, 153, 0.4);
}

.download-platform-btn i {
    font-size: 20px;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: #e2e8f0;
    padding: 60px 0 30px;
    position: relative;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
    color: #8b5cf6;
}

.footer-logo .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: white;
}

.footer-contact p {
    margin-bottom: 12px;
    font-size: 14px;
    color: #94a3b8;
}

.contact-icons {
    display: flex;
    gap: 12px;
}

.contact-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8b5cf6;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-icon:hover {
    background: #8b5cf6;
    color: white;
    transform: translateY(-2px);
}

.footer-copyright p {
    font-size: 12px;
    color: #64748b;
    margin: 0;
}

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

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #8b5cf6;
}

.language-selector {
    position: relative;
}

.language-btn {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    color: #e2e8f0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
    font-size: 14px;
    transition: all 0.3s ease;
}

.language-btn:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.5);
}

.language-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.language-btn.active i {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    background: #334155;
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 8px;
    list-style: none;
    padding: 8px 0;
    margin: 0 0 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 10;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-dropdown a {
    display: block;
    padding: 8px 16px;
    color: #e2e8f0;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.3s ease;
}

.language-dropdown a:hover {
    background: rgba(139, 92, 246, 0.2);
}

/* 全球热门应用模块 */
.apps-section {
    padding: 160px 0;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    position: relative;
    overflow: hidden;
}

.apps-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(217, 70, 239, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.apps-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.apps-title {
    font-size: 64px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 120px;
    letter-spacing: -2px;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.1);
    position: relative;
}

.apps-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 4px;
    background: linear-gradient(90deg, transparent, #6366f1, #8b5cf6, #d946ef, transparent);
    border-radius: 2px;
}

.apps-grid {
    position: relative;
    width: min(700px, 90vw);
    height: min(700px, 90vw);
    margin: 0 auto;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    max-width: 100%;
}

.app-item {
    position: absolute;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.app-orbit-1 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-160px) rotate(calc(-1 * var(--angle)));
    z-index: 5;
}

.app-orbit-2 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-240px) rotate(calc(-1 * var(--angle)));
    z-index: 3;
}

.app-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    position: relative;
}

.app-icon i {
    font-size: 40px;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.app-orbit-2 .app-icon {
    width: 70px;
    height: 70px;
}

.app-orbit-2 .app-icon i {
    font-size: 32px;
}

.app-main {
    width: 120px;
    height: 120px;
}

.app-main i {
    font-size: 60px;
}

.app-icon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent, rgba(255, 255, 255, 0.1));
    border-radius: 22px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.app-icon:hover::before {
    opacity: 1;
}

.app-icon:hover {
    transform: scale(1.15) translateY(-12px);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 40px rgba(99, 102, 241, 0.3);
}

.app-main {
    animation: pulse-glow-enhanced 4s ease-in-out infinite;
    box-shadow: 
        0 25px 70px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.25),
        0 0 60px rgba(99, 102, 241, 0.4);
}

.app-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    background: linear-gradient(45deg, #6366f1, #8b5cf6, #d946ef);
    border-radius: 50%;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(-1 * var(--radius))) rotate(calc(-1 * var(--angle)));
    opacity: 0.9;
    animation: float-dot-enhanced 6s ease-in-out infinite;
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.7);
}

/* 增强的应用图标动画 */
@keyframes pulse-glow-enhanced {
    0%, 100% {
        box-shadow: 
            0 25px 70px rgba(0, 0, 0, 0.4),
            0 0 0 1px rgba(255, 255, 255, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.25),
            0 0 60px rgba(99, 102, 241, 0.4),
            0 0 0 0 rgba(99, 102, 241, 0.6);
    }
    50% {
        box-shadow: 
            0 25px 70px rgba(0, 0, 0, 0.4),
            0 0 0 1px rgba(255, 255, 255, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.25),
            0 0 80px rgba(99, 102, 241, 0.6),
            0 0 0 30px rgba(99, 102, 241, 0);
    }
}

/* 增强的点动画 */
@keyframes float-dot-enhanced {
    0%, 100% { 
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(-1 * var(--radius))) rotate(calc(-1 * var(--angle))) scale(1);
        opacity: 0.8;
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
    }
    50% { 
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(-1 * var(--radius))) rotate(calc(-1 * var(--angle))) scale(1.5);
        opacity: 1;
        box-shadow: 0 0 30px rgba(99, 102, 241, 0.8);
    }
}

/* 星光闪烁效果 */
@keyframes starlight {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* 背景装饰星光 */
.apps-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(139, 92, 246, 0.8), transparent),
        radial-gradient(1px 1px at 90% 40%, rgba(99, 102, 241, 0.8), transparent),
        radial-gradient(1px 1px at 60% 10%, rgba(217, 70, 239, 0.8), transparent),
        radial-gradient(2px 2px at 80% 90%, rgba(255, 255, 255, 0.6), transparent);
    background-size: 550px 550px, 350px 350px, 250px 250px, 200px 200px, 150px 150px;
    animation: starlight 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

/* 增强轨道旋转 */
.apps-grid:hover .app-orbit-1 {
    animation: enhanced-orbit-rotation 25s linear infinite;
}

.apps-grid:hover .app-orbit-2 {
    animation: enhanced-orbit-rotation 35s linear infinite reverse;
}

@keyframes enhanced-orbit-rotation {
    from {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-160px) rotate(calc(-1 * var(--angle)));
    }
    to {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 360deg)) translateY(-160px) rotate(calc(-1 * (var(--angle) + 360deg)));
    }
}

/* 客服按钮 */
.customer-service {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #00BFFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(0, 191, 255, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
}

.customer-service:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 191, 255, 0.6);
}

.cs-icon svg {
    width: 24px;
    height: 24px;
}

/* 响应式设计 */
@media (max-width: 960px) {
    .nav {
        padding: 16px 30px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .nav-user {
        font-size: 14px;
        gap: 6px;
    }
    
    .user-text {
        font-size: 14px;
    }
}

@media (max-width: 1200px) {
    .hero-section {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .features {
        justify-content: center;
        gap: 20px;
		
    }
    
    .hero-main-image {
        max-height: 400px;
    }
    
    .fast-connect-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .fast-connect-title {
        font-size: 40px;
    }
    
    .global-coverage-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .global-coverage-title {
        font-size: 40px;
    }
    
    .security-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .security-title {
        font-size: 40px;
    }
    
    .free-trial-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .free-trial-title {
        font-size: 40px;
    }
    
    .cross-platform-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .cross-platform-title {
        font-size: 40px;
    }
    
    .customer-support-container {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }
    
    .customer-support-title {
        font-size: 40px;
    }
    
    .testimonials-title {
        font-size: 40px;
    }
    
    .testimonials-carousel {
        gap: 20px;
    }
    
    .testimonials-wrapper {
        width: min(400px, 85vw);
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 12px 20px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-user {
        font-size: 14px;
        gap: 6px;
        white-space: nowrap;
    }
    
    .user-text {
        display: none;
    }
    
    .user-icon svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 600px) {
    .download-section-container {
        padding: 0 16px;
    }
    
    .download-buttons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 0;
        justify-items: center;
        align-items: center;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .download-platform-btn {
        min-width: min(150px, 40vw);
        font-size: 14px;
        padding: 12px 16px;
        width: 100%;
        max-width: 150px;
        justify-self: center;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 12px 16px;
    }
    
    .logo-text {
        font-size: 20px;
    }
    
    .logo-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .nav-user {
        font-size: 12px;
        gap: 4px;
    }
    
    .user-text {
        display: none;
    }
    
    .user-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .hero-section {
        padding: 40px 20px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .features {

        align-items: center;
        gap: 20px;
    }
    
    .feature-circle {
        width: 100px;
        height: 100px;
        padding: 5px;
    }
    
    .feature-number {
        font-size: 36px;
    }
    
    .feature-unit {
        font-size: 16px;
    }
    
    .feature-circle-large {
        width: 140px;
        height: 140px;
        padding: 20px;
    }
    
    .feature-number-small {
        font-size: 32px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-main-image {
        max-height: 300px;
    }
    
    .apps-section {
        padding: 80px 0;
    }
    
    .apps-title {
        font-size: 32px;
        margin-bottom: 60px;
    }
    
    .apps-grid {
        width: min(350px, 85vw);
        height: min(350px, 85vw);
    }
    
    .app-orbit-1 {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-80px) rotate(calc(-1 * var(--angle)));
    }
    
    .app-orbit-2 {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-120px) rotate(calc(-1 * var(--angle)));
    }
    
    .fast-connect-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .fast-connect-title {
        font-size: 32px;
    }
    
    .fast-connect-description {
        font-size: 16px;
    }
    
    .fast-connect-image {
        max-width: 90%;
    }
    
    .global-coverage-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .global-coverage-title {
        font-size: 32px;
    }
    
    .global-coverage-description {
        font-size: 16px;
    }
    
    .global-coverage-image {
        max-width: 90%;
    }
    
    .security-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .security-title {
        font-size: 32px;
    }
    
    .security-description {
        font-size: 16px;
    }
    
    .security-image {
        max-width: 90%;
    }
    
    .free-trial-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .free-trial-title {
        font-size: 32px;
    }
    
    .free-trial-description {
        font-size: 16px;
    }
    
    .free-trial-image {
        max-width: 90%;
    }
    
    .cross-platform-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .cross-platform-title {
        font-size: 32px;
    }
    
    .cross-platform-description {
        font-size: 16px;
    }
    
    .cross-platform-image {
        max-width: 90%;
    }
    
    .customer-support-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .customer-support-title {
        font-size: 32px;
    }
    
    .customer-support-description {
        font-size: 16px;
    }
    
    .customer-support-image {
        max-width: 90%;
    }
    
    .testimonials-title {
        font-size: 32px;
    }
    
    .testimonials-subtitle {
        font-size: 16px;
        min-height: 80px;
    }
    
    .testimonials-carousel {
        flex-direction: column;
        gap: 30px;
    }
    
    .testimonials-wrapper {
        width: min(300px, 80vw);
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .carousel-btn i {
        font-size: 16px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .contact-icons {
        justify-content: center;
    }
    
    .download-section-container {
        padding: 0 12px;
    }
    
    .download-buttons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0;
        justify-items: center;
        align-items: center;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .download-platform-btn {
        min-width: min(140px, 38vw);
        font-size: 13px;
        padding: 12px 14px;
        width: 100%;
        max-width: 140px;
        justify-self: center;
    }
}

@media (max-width: 360px) {
    .download-section-container {
        padding: 0 16px;
    }
    
    .download-platform-btn {
        min-width: min(200px, 50vw);
        font-size: 14px;
        padding: 14px 20px;
        gap: 10px;
        width: 100%;
        max-width: 250px;
        justify-self: center;
    }
    
    .download-buttons-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0;
        justify-items: center;
        align-items: center;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .apps-grid {
        width: min(280px, 75vw);
        height: min(280px, 75vw);
    }
    
    .testimonials-wrapper {
        width: min(250px, 70vw);
    }
    
    .nav {
        padding: 12px 12px;
    }
}

/* 动画效果 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-main-image {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.hero-content > * {
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.3s; }
.hero-content > *:nth-child(4) { animation-delay: 0.4s; }

/* 应用图标特定颜色 */
.app-icon.youtube {
    background: linear-gradient(135deg, #FF0000, #CC0000);
}

.app-icon.facebook {
    background: linear-gradient(135deg, #1877F2, #0C5AA6);
}

.app-icon.instagram {
    background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045);
}

.app-icon.netflix {
    background: linear-gradient(135deg, #E50914, #B2070F);
}

.app-icon.twitch {
    background: linear-gradient(135deg, #9146FF, #6441A5);
}

.app-icon.dribbble {
    background: linear-gradient(135deg, #EA4C89, #C73650);
}

.app-icon.google {
    background: linear-gradient(135deg, #4285F4, #34A853, #FBBC04, #EA4335);
}

.app-icon.discord {
    background: linear-gradient(135deg, #5865F2, #4752C4);
}

.app-icon.behance {
    background: linear-gradient(135deg, #1769FF, #0D47A1);
}

.app-icon.chatgpt {
    background: linear-gradient(135deg, #10A37F, #0D8A6B);
}

.app-icon.spotify {
    background: linear-gradient(135deg, #1DB954, #1ED760);
}

.app-icon.github {
    background: linear-gradient(135deg, #24292e, #1B1F23);
}

/* 滑入动画 */
@keyframes slideInFromLeft {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    0% {
        opacity: 0;
        transform: translateX(30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}