/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.back-to-top {
    position: fixed;
    right: 24px;
    top: 50%;
    bottom: auto;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    background: rgba(26, 26, 26, 0.75);
    backdrop-filter: blur(10px);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1500;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(calc(-50% + 10px)) scale(0.98);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.back-to-top i {
    font-size: 16px;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) scale(1);
}

.back-to-top:hover {
    background: rgba(0, 212, 255, 0.18);
    border-color: rgba(0, 212, 255, 0.35);
    transform: translateY(calc(-50% - 2px)) scale(1.03);
}

.back-to-top:active {
    transform: translateY(-50%) scale(0.98);
}

.back-to-top:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.35), 0 10px 30px rgba(0, 0, 0, 0.35);
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
    overflow: hidden;
    white-space: nowrap;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    white-space: nowrap;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #00d4ff;
    text-decoration: none;
    cursor: pointer;
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 20px;
    white-space: nowrap;
    flex-wrap: nowrap;
    align-items: center;
}

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    position: relative;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link:hover {
    color: #00d4ff;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00d4ff;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* 返回官网特殊样式 */
.nav-website {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    padding: 6px 12px;
    border-radius: 18px;
    margin-left: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 212, 255, 0.3);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-website::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.nav-website:hover::before {
    left: 100%;
}

.nav-website:hover {
    color: #ffffff;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.5);
}

.nav-website::after {
    display: none;
}

.nav-website i {
    margin-right: 6px;
    font-size: 0.9em;
}

/* 英雄区域 */
.hero {
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 25px;
    padding: 8px 16px;
    font-size: 0.9rem;
    color: #00d4ff;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #b0b0b0;
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-wechat {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #07c160;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease;
    cursor: pointer;
}

.btn-wechat .wechat-qr-overlay {
    position: absolute;
    bottom: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%);
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    padding: 10px;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.btn-wechat:hover .wechat-qr-overlay {
    opacity: 1;
    visibility: visible;
}

.btn-wechat .wechat-qr-code {
    width: 200px;
    height: 200px;
    object-fit: contain;
    display: block;
}

/* 图片网格 */
.hero-images {
    animation: fadeInRight 1s ease;
}

.image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.image-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 10px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.image-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.preview-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.image-overlay {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    color: #ffffff;
}

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

.image-overlay i {
    font-size: 2rem;
    color: #00d4ff;
    margin-bottom: 10px;
}

.image-overlay span {
    color: #ffffff;
    font-weight: 500;
}

/* 功能区域 */
.features {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.3);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 255, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
}

.feature-icon i {
    font-size: 2rem;
    color: #ffffff;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 产品优势 */
.advantages {
    padding: 100px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.advantage-item i {
    font-size: 1.5rem;
    color: #00d4ff;
    margin-top: 5px;
    flex-shrink: 0;
}

.advantage-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #ffffff;
}

.advantage-item p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.3);
}

.download-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #b0b0b0;
    margin-bottom: 60px;
}

.download-cards {
    display: flex;
    justify-content: center;
}

.download-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 50px 40px;
    text-align: center;
    backdrop-filter: blur(10px);
    max-width: 500px;
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.download-icon {
    width: 100px;
    height: 100px;
    background: transparent;
    border-radius: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    box-shadow: 
        0 0 30px rgba(0, 212, 255, 0.5),
        0 0 60px rgba(0, 212, 255, 0.3),
        0 0 90px rgba(0, 212, 255, 0.2);
    animation: glow 2s ease-in-out infinite alternate;
}

.download-icon-image {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.download-icon i {
    font-size: 2.5rem;
    color: #ffffff;
}

.download-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
}

.download-info {
    color: #b0b0b0;
    margin-bottom: 10px;
}

/* 安装教程 */
.installation {
    padding: 100px 0;
}

.installation-steps {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.step-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.step-item:hover::before {
    left: 100%;
}

.step-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 255, 0.3);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    flex-shrink: 0;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
    z-index: 1;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    color: #ffffff;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.step-content p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 10px;
}

.step-content code {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    padding: 4px 8px;
    color: #00d4ff;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.step-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    z-index: 1;
}

.step-icon i {
    font-size: 1.2rem;
    color: #00d4ff;
}

.installation-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 15px;
}

.method-option {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
}

.method-option:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.3);
}

.method-option.recommended {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    position: relative;
}

.method-option.recommended:hover {
    background: rgba(0, 212, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.5);
}

.method-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.method-header i {
    font-size: 1.2rem;
    color: #00d4ff;
}

.method-header span {
    color: #ffffff;
    font-weight: 600;
    font-size: 1.1rem;
}

.recommended-badge {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #ffffff;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: auto;
}

.method-option p {
    color: #b0b0b0;
    line-height: 1.6;
    margin: 0;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 15px 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: 0;
    flex-shrink: 0;
}

.contact-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.website-link {
    cursor: pointer;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.website-link:hover {
    background: rgba(0, 212, 255, 0.2);
    border: 1px solid rgba(0, 212, 255, 0.5);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(0, 212, 255, 0.3);
}

.bilibili-link {
    cursor: pointer;
    background: rgba(255, 102, 153, 0.1);
    border: 1px solid rgba(255, 102, 153, 0.3);
}

.bilibili-link:hover {
    background: rgba(255, 102, 153, 0.2);
    border: 1px solid rgba(255, 102, 153, 0.5);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(255, 102, 153, 0.3);
}

.bilibili-link i {
    color: #ff6699 !important;
}

/* 邮箱按钮样式 */
.contact-item:nth-child(1) {
    background: rgba(234, 67, 53, 0.1);
    border: 1px solid rgba(234, 67, 53, 0.3);
}

.contact-item:nth-child(1):hover {
    background: rgba(234, 67, 53, 0.2);
    border: 1px solid rgba(234, 67, 53, 0.5);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(234, 67, 53, 0.3);
}

.contact-item:nth-child(1) i {
    color: #ea4335 !important;
}

/* 微信按钮样式 */
.contact-item:nth-child(2) {
    background: rgba(7, 193, 96, 0.1);
    border: 1px solid rgba(7, 193, 96, 0.3);
}

.contact-item:nth-child(2):hover {
    background: rgba(7, 193, 96, 0.2);
    border: 1px solid rgba(7, 193, 96, 0.5);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(7, 193, 96, 0.3);
}

.contact-item:nth-child(2) i {
    color: #07c160 !important;
}

/* QQ按钮样式 */
.contact-item:nth-child(3) {
    background: rgba(18, 183, 245, 0.1);
    border: 1px solid rgba(18, 183, 245, 0.3);
}

.contact-item:nth-child(3):hover {
    background: rgba(18, 183, 245, 0.2);
    border: 1px solid rgba(18, 183, 245, 0.5);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(18, 183, 245, 0.3);
}

.contact-item:nth-child(3) i {
    color: #12b7f5 !important;
}

.contact-item i {
    font-size: 1.5rem;
    color: #00d4ff;
}

.contact-item span {
    font-weight: 500;
    color: #ffffff;
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.5);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    color: #b0b0b0;
    margin-bottom: 10px;
}

/* 动画 */
@keyframes glow {
    from {
        box-shadow: 
            0 0 30px rgba(0, 212, 255, 0.5),
            0 0 60px rgba(0, 212, 255, 0.3),
            0 0 90px rgba(0, 212, 255, 0.2);
    }
    to {
        box-shadow: 
            0 0 40px rgba(0, 212, 255, 0.7),
            0 0 80px rgba(0, 212, 255, 0.5),
            0 0 120px rgba(0, 212, 255, 0.3);
    }
}

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

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

/* 图片模态框 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #ffffff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
}

.modal-close:hover {
    color: #00d4ff;
}

.modal-image {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-caption {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    text-align: center;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 20px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* 常见问题 */
.faq {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.3);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question h3 {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: #00d4ff;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    background: rgba(0, 0, 0, 0.2);
}

.faq-item.active .faq-answer {
    padding: 0 30px 25px;
}

.faq-answer p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 10px;
}

/* 更新日志 */
.changelog {
    padding: 100px 0;
}

.changelog-timeline {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.changelog-item {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.version-badge-large {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    white-space: nowrap;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
    flex-shrink: 0;
}

.changelog-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(10px);
    flex: 1;
    transition: all 0.3s ease;
}

.changelog-content:hover {
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.changelog-content h3 {
    color: #00d4ff;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.changelog-content ul {
    list-style: none;
    padding: 0;
}

.changelog-content li {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 12px;
    position: relative;
    padding-left: 20px;
}

.changelog-content li::before {
    content: '•';
    color: #00d4ff;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 依赖下载 */
.dependencies {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.3);
}

.dependencies-content {
    max-width: 1000px;
    margin: 0 auto;
}

.important-notice {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
    backdrop-filter: blur(10px);
}

.notice-icon {
    flex-shrink: 0;
}

.notice-icon i {
    font-size: 2rem;
    color: #ffc107;
}

.notice-text h3 {
    color: #ffc107;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.notice-text p {
    color: #ffffff;
    line-height: 1.6;
    margin: 0;
}

.dependencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.dependency-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.dependency-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.dependency-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dependency-header i {
    font-size: 2rem;
    color: #00d4ff;
}

.dependency-header h3 {
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.dependency-content {
    margin-bottom: 25px;
}

.dependency-content p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 8px;
}

.dependency-content strong {
    color: #ffffff;
}

.dependency-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.dependency-actions .btn {
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

/* VIP通知弹窗 */
.vip-notice-modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.vip-notice-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.95) 0%, rgba(45, 45, 45, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    width: 90%;
    backdrop-filter: blur(20px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    animation: slideInUp 0.4s ease;
}

.vip-notice-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.vip-notice-header i {
    font-size: 2rem;
    color: #ffd700;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
}

.vip-notice-header h3 {
    color: #ffffff;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, #ffffff 0%, #ffd700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vip-notice-body {
    margin-bottom: 30px;
}

.vip-notice-body p {
    color: #e0e0e0;
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.vip-notice-body strong {
    color: #00d4ff;
    font-weight: 600;
}

.vip-notice-body .website-link {
    color: #00d4ff;
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
}

.vip-notice-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.vip-upgrade-btn {
    background: linear-gradient(135deg, #ffd700 0%, #ffb300 100%);
    color: #000000;
    font-weight: 700;
    padding: 15px 30px;
    border-radius: 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.vip-upgrade-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;
}

.vip-upgrade-btn:hover::before {
    left: 100%;
}

.vip-upgrade-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 215, 0, 0.6);
    background: linear-gradient(135deg, #ffe135 0%, #ffc107 100%);
}

.vip-upgrade-btn i {
    color: #000000;
    font-size: 1.1rem;
}

/* 动画关键帧 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* 中等屏幕优化 */
@media (max-width: 1200px) and (min-width: 1025px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 0.85rem;
    }
    
    .nav-website {
        padding: 5px 10px;
        font-size: 0.8rem;
        margin-left: 8px;
    }
    
    .nav-container {
        padding: 0 10px;
    }
}

/* 较小屏幕优化 */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-menu {
        gap: 12px;
    }
    
    .nav-link {
        font-size: 0.8rem;
    }
    
    .nav-website {
        padding: 4px 8px;
        font-size: 0.75rem;
        margin-left: 6px;
    }
    
    .nav-container {
        padding: 0 8px;
        max-width: 100%;
    }
    
    .nav-logo span {
        font-size: 1.2rem;
    }
}

/* 移动端导航菜单样式 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle:hover {
    color: #00d4ff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        padding: 10px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-website {
        margin-left: 0;
        margin-top: 10px;
        text-align: center;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        padding: 0 20px;
    }
    
    .contact-item {
        padding: 15px 25px;
        font-size: 1rem;
        min-width: 200px;
        justify-content: center;
    }
    
    .contact-item span {
        display: block;
    }
    
    .contact-item i {
        margin-right: 10px;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }

    .back-to-top {
        right: 16px;
        top: 50%;
        bottom: auto;
        width: 44px;
        height: 44px;
    }
    
    /* VIP通知弹窗移动端适配 */
    .vip-notice-content {
        padding: 30px 20px;
        margin: 20px;
        width: calc(100% - 40px);
    }
    
    .vip-notice-header h3 {
        font-size: 1.5rem;
    }
    
    .vip-notice-body p {
        font-size: 1rem;
    }
    
    .vip-notice-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .vip-upgrade-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

/* 粒子效果优化 */
canvas {
    will-change: transform;
    transform: translateZ(0);
}

/* 提高性能的GPU加速 */
.hero, .features, .advantages, .download, .installation, .faq, .dependencies, .changelog, .contact {
    transform: translateZ(0);
    will-change: transform;
}

/* 优化鼠标悬停效果 */
.btn, .feature-card, .advantage-item, .download-card, .contact-item {
    will-change: transform, box-shadow;
}

/* 禁用在低性能设备上的复杂动画 */
@media (prefers-reduced-motion: reduce) {
    canvas {
        display: none !important;
    }
    
    .btn, .feature-card, .advantage-item, .download-card, .contact-item {
        transition: none !important;
        animation: none !important;
    }
}

/* 移动设备优化 - 降低粒子效果透明度 */
@media (max-width: 768px) {
    canvas {
        opacity: 0.3 !important;
    }
}

.wechat-qr-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wechat-qr-modal-content {
    position: relative;
    background-color: rgba(0,0,0,0.7);
    padding: 30px;
    border-radius: 20px;
    max-width: 80%;
    max-height: 80%;
    text-align: center;
    box-shadow: 0 15px 50px rgba(0,0,0,0.3);
    transform: scale(0.7);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.wechat-qr-modal.show .wechat-qr-modal-content {
    transform: scale(1);
    opacity: 1;
}

.wechat-qr-close {
    color: rgba(255,255,255,0.6);
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 36px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.wechat-qr-close:hover {
    color: white;
    transform: rotate(90deg);
    opacity: 1;
}

.wechat-qr-code {
    max-width: 100%;
    max-height: 60vh;
    object-fit: contain;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.wechat-qr-code:hover {
    transform: scale(1.05);
}