/* 全局样式 */
:root {
    --primary-color: #1890ff;
    --secondary-color: #52c41a;
    --text-color: #333;
    --light-text: #666;
    --background: #fff;
    --dark-background: #1a1a1a;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --gradient-primary: linear-gradient(135deg, #1890ff 0%, #36cfc9 100%);
    --gradient-secondary: linear-gradient(135deg, #52c41a 0%, #73d13d 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.logo img {
    height: 40px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-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 ease, height 0.6s ease;
}

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

.btn-primary:hover {
    background: #40a9ff;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-secondary::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 ease, height 0.6s ease;
}

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* 首页横幅样式 */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
}

.hero-content {
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark-background);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: scaleIn 1s ease-out;
}

.hero p {
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.hero-image {
    max-width: 50%;
}

.hero-image img {
    width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

/* 首页横幅样式补充 */
.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.hero-feature::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.hero-feature:hover::after {
    width: 100%;
}

.hero-feature i {
    font-size: 1.5rem;
}

.live-preview-card {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 280px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    animation: slideInRight 1s ease-out 0.9s backwards;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.live-preview-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.live-preview-header {
    padding: 0.75rem;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.live-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 0, 0, 0.9);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    animation: pulse 2s infinite;
    position: relative;
    overflow: hidden;
}

.live-status::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shine 2s infinite;
}

.live-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
}

.live-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.live-preview-content {
    padding: 0.75rem;
    background: #f8f9fa;
    max-height: 120px;
    overflow-y: auto;
}

.live-comment {
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background: white;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    animation: fadeInUp 0.5s ease-out;
    transition: transform 0.3s ease;
}

.live-comment:hover {
    transform: translateX(5px);
}

.live-comment .user {
    color: var(--primary-color);
    font-weight: 500;
    margin-right: 0.5rem;
}

/* 功能特点样式 */
.features {
    padding: 6rem 2rem;
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-background);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--light-text);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    text-align: center;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-background);
}

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

/* 应用展示样式 */
.showcase {
    padding: 6rem 2rem;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.showcase-content {
    flex: 1;
}

.showcase-content h2 {
    font-size: 2.5rem;
    color: var(--dark-background);
    margin-bottom: 1.5rem;
}

.showcase-content p {
    color: var(--light-text);
    margin-bottom: 2rem;
}

.showcase-list {
    list-style: none;
}

.showcase-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.showcase-list i {
    color: var(--secondary-color);
}

.showcase-image {
    flex: 1;
}

.showcase-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 下载区域样式 */
.download {
    padding: 6rem 2rem;
    background: var(--background);
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.download-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    flex: 1;
    max-width: 300px;
    transition: var(--transition);
}

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

.download-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-background);
}

.download-card p {
    color: var(--light-text);
    margin-bottom: 1.5rem;
}

.download-card.coming-soon {
    opacity: 0.7;
}

/* 关于我们样式 */
.about {
    padding: 6rem 2rem;
    background: #f8f9fa;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 4rem;
    align-items: center;
}

.about-text {
    flex: 1;
}

.about-text p {
    color: var(--light-text);
    margin-bottom: 1.5rem;
}

.about-stats {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--light-text);
}

/* 页脚样式优化 */
.footer {
    background: linear-gradient(to right, #1a1a1a, #2c2c2c);
    padding: 3rem 2rem;
    color: var(--light-text);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-info {
    padding: 1.5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-info p {
    margin: 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.5px;
}

.footer-info a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    position: relative;
}

.footer-info a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.footer-info a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.footer-info a:hover::after {
    width: 80%;
}

@media (max-width: 768px) {
    .footer {
        padding: 2rem 1rem;
    }
    
    .footer-info p {
        font-size: 0.85rem;
    }
    
    .footer-info a {
        padding: 0.2rem 0.6rem;
    }
}

/* 动画 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        margin-bottom: 3rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .showcase {
        flex-direction: column;
        text-align: center;
    }

    .showcase-list {
        display: inline-block;
        text-align: left;
    }

    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .live-preview-card {
        position: relative;
        top: 0;
        right: 0;
        width: 100%;
        max-width: 400px;
        margin: 2rem auto;
    }

    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .download-options {
        flex-direction: column;
        align-items: center;
    }

    .download-card {
        width: 100%;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .hero-features {
        gap: 1rem;
    }

    .hero-feature {
        font-size: 0.9rem;
    }

    .hero-feature i {
        font-size: 1.25rem;
    }

    .live-preview-card {
        max-width: 320px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .live-preview-card {
        max-width: 280px;
    }
}

/* 直播功能展示样式 */
.live-showcase {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.live-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 4rem;
    align-items: center;
}

.live-features {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.live-feature {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    text-align: center;
}

.live-feature:hover {
    transform: translateY(-5px);
}

.live-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.live-icon i {
    font-size: 1.5rem;
    color: white;
}

.live-feature h3 {
    font-size: 1.25rem;
    color: var(--dark-background);
    margin-bottom: 0.5rem;
}

.live-feature p {
    color: var(--light-text);
    font-size: 0.9rem;
}

.live-preview {
    flex: 1;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.live-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.live-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 0, 0, 0.9);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    animation: pulse 2s infinite;
}

.live-overlay i {
    font-size: 1rem;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 0, 0, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 0, 0, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 0, 0);
    }
}

/* Logo样式 */
.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon i {
    font-size: 24px;
    color: white;
}

/* 首页横幅动画 */
.hero-illustration {
    position: relative;
    width: 100%;
    max-width: 600px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drone-animation {
    position: relative;
    width: 120px;
    height: 120px;
    animation: float 6s ease-in-out infinite;
}

.drone-animation i {
    font-size: 80px;
    color: var(--primary-color);
    filter: drop-shadow(0 4px 8px rgba(24, 144, 255, 0.3));
}

.connection-dots {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border: 2px dashed var(--primary-color);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.connection-dots span {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
}

.connection-dots span:nth-child(1) { top: -4px; left: 50%; }
.connection-dots span:nth-child(2) { top: 50%; right: -4px; }
.connection-dots span:nth-child(3) { bottom: -4px; left: 50%; }

.control-panel {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 1s ease-out 1.2s backwards;
    backdrop-filter: blur(10px);
}

.panel-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    transition: transform 0.3s ease;
}

.panel-item:hover {
    transform: translateY(-3px);
}

.panel-item i {
    font-size: 24px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.panel-item:hover i {
    transform: scale(1.2);
}

.panel-item span {
    font-size: 14px;
    color: var(--light-text);
}

/* 应用预览样式 */
.showcase-illustration {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-preview {
    width: 300px;
    height: 500px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
}

.app-header {
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
}

.app-status-bar {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.app-status-bar i {
    font-size: 18px;
}

.app-content {
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.preview-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.preview-item:hover {
    transform: translateY(-5px);
    background: var(--gradient-primary);
    color: white;
}

.preview-item i {
    font-size: 24px;
    margin-bottom: 0.5rem;
}

/* 直播界面样式 */
.live-interface {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.live-header {
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.live-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 0, 0, 0.9);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    animation: pulse 2s infinite;
}

.live-stats {
    display: flex;
    gap: 1rem;
}

.live-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.live-comments {
    padding: 1rem;
    background: #f8f9fa;
    height: 200px;
    overflow-y: auto;
}

.comment {
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background: white;
    border-radius: var(--border-radius);
}

.comment .user {
    color: var(--primary-color);
    font-weight: 500;
    margin-right: 0.5rem;
}

.live-controls {
    padding: 1rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    background: white;
    border-top: 1px solid #eee;
}

.control-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.control-btn:hover {
    transform: scale(1.1);
}

/* 动画 */
@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 0, 0, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(255, 0, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 0, 0, 0); }
}

/* 响应式设计补充 */
@media (max-width: 1024px) {
    .hero-illustration {
        height: 300px;
    }

    .app-preview {
        width: 280px;
        height: 460px;
    }
}

@media (max-width: 768px) {
    .hero-illustration {
        height: 250px;
    }

    .drone-animation i {
        font-size: 60px;
    }

    .connection-dots {
        width: 150px;
        height: 150px;
    }

    .app-preview {
        width: 240px;
        height: 400px;
    }

    .live-interface {
        margin-top: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-illustration {
        height: 200px;
    }

    .control-panel {
        flex-direction: column;
        gap: 1rem;
    }

    .app-preview {
        width: 200px;
        height: 360px;
    }
}

/* 数据统计展示样式 */
.stats-showcase {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 30px;
    color: white;
}

.stat-info {
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--light-text);
    font-size: 0.9rem;
}

.stat-chart {
    width: 40px;
    height: 100px;
    background: #f8f9fa;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.chart-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gradient-primary);
    border-radius: 20px;
    transition: height 1s ease;
}

/* FAQ样式 */
.faq {
    padding: 6rem 2rem;
    background: var(--background);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--dark-background);
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--light-text);
    margin: 0;
}

/* 用户反馈样式 */
.feedback {
    padding: 6rem 2rem;
    background: #f8f9fa;
}

.feedback-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.feedback-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.feedback-preview {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.preview-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.preview-header h3 {
    font-size: 1.5rem;
    color: var(--dark-background);
    margin: 0;
}

.preview-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.preview-item {
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.preview-rating {
    color: #ffc107;
    margin-bottom: 1rem;
}

.preview-item p {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-style: italic;
}

.preview-author {
    color: var(--light-text);
    font-size: 0.9rem;
}

/* 全局动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* 优化首页横幅样式 */
.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-content h1 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: scaleIn 1s ease-out;
}

.hero-features {
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.hero-feature {
    position: relative;
    overflow: hidden;
}

.hero-feature::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.hero-feature:hover::after {
    width: 100%;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.btn-primary, .btn-secondary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before, .btn-secondary::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 ease, height 0.6s ease;
}

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

/* 优化直播预览卡片 */
.live-preview-card {
    animation: slideInRight 1s ease-out 0.9s backwards;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.live-preview-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.live-status {
    position: relative;
    overflow: hidden;
}

.live-status::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shine 2s infinite;
}

@keyframes shine {
    to {
        left: 100%;
    }
}

.live-comment {
    animation: fadeInUp 0.5s ease-out;
    transition: transform 0.3s ease;
}

.live-comment:hover {
    transform: translateX(5px);
}

/* 优化控制面板 */
.control-panel {
    animation: fadeInUp 1s ease-out 1.2s backwards;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
}

.panel-item {
    position: relative;
    transition: transform 0.3s ease;
}

.panel-item:hover {
    transform: translateY(-3px);
}

.panel-item i {
    transition: transform 0.3s ease;
}

.panel-item:hover i {
    transform: scale(1.2);
}

/* 优化导航栏 */
.navbar {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a {
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

/* 优化滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-primary);
}

/* 优化移动端菜单 */
@media (max-width: 768px) {
    .nav-links {
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
    }

    .nav-links a {
        padding: 1rem;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .menu-toggle {
        transition: transform 0.3s ease;
    }

    .menu-toggle.active {
        transform: rotate(90deg);
    }
}

/* 优化加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}