/* CSS变量定义 */
:root {
    --primary-color: #00ffaa;
    --secondary-color: #00d4ff;
    --accent-color: #8a2be2;
    --gradient-primary: linear-gradient(135deg, #00ffaa 0%, #00d4ff 50%, #8a2be2 100%);
    --gradient-secondary: linear-gradient(135deg, #00d4ff 0%, #00ffaa 100%);
    --gradient-soft: linear-gradient(135deg, rgba(0, 255, 170, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
    --text-dark: #ffffff;
    --text-light: #a0a0a0;
    --text-white: #ffffff;
    --bg-light: #0f0f23;
    --bg-white: #1a1a2e;
    --bg-dark: #16213e;
    --shadow-soft: 0 4px 20px rgba(0, 255, 170, 0.15);
    --shadow-medium: 0 8px 30px rgba(0, 255, 170, 0.25);
    --shadow-strong: 0 12px 40px rgba(0, 255, 170, 0.35);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 255, 170, 0.2);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-name {
    height: 80px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

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

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

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

.cta-button {
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* 英雄区样式 */
.hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: stretch;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.85) 0%, 
        rgba(0, 0, 0, 0.75) 50%, 
        rgba(0, 0, 0, 0.8) 100%);
    z-index: -1;
}

.hero-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(0, 255, 170, 0.1) 0%, 
        rgba(0, 212, 255, 0.08) 50%, 
        rgba(138, 43, 226, 0.12) 100%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    color: var(--text-white);
    width: 100%;
    height: 100vh;
    position: relative;
    z-index: 2;
}

.hero-text-content {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    padding: 0 20px;
}

.hero-logos {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 64px;
    animation: fadeInUp 1s ease-out 0.2s both;
    position: absolute;
    top: 30vh;
    transform: translateX(-50%);
    z-index: 3;
    width: 100%;
    text-align: center;
}

.hero-logo {
    height: 200px;
    width: auto;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
    display: block;
    margin: 0 auto;
}


.hero-slogan {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #fff3e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-actions {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.primary-button {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
    margin-bottom: 10px;
}

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

.secondary-button {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
}

.secondary-button:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.scroll-indicator {
    display: none;
}

/* 功能区样式 */
.features {
    min-height: 100vh;
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.features-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

.features-nav {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
}

.nav-indicators {
    display: flex;
    flex-direction: row;
    gap: 15px;
    align-items: center;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.nav-dot.active {
    background: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.6);
}

.nav-dot:hover {
    background: rgba(0, 255, 170, 0.7);
}

.features-showcase {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.feature-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1200px;
    width: 100%;
    padding: 0 100px;
    align-items: center;
}

.feature-text {
    color: var(--text-white);
}

.feature-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 32px;
    color: var(--text-light);
}

.feature-highlights {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.highlight-item {
    font-size: 1rem;
    color: var(--text-light);
    padding-left: 20px;
    position: relative;
}

.highlight-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 255, 170, 0.5);
}

.feature-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 40px;
    padding: 20px;
    box-shadow: 
        0 0 50px rgba(0, 255, 170, 0.25),
        inset 0 0 30px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    border: 2px solid rgba(0, 255, 170, 0.3);
}

.feature-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

.phone-ui {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    pointer-events: none;
    z-index: 2;
    border-radius: 30px;
    overflow: hidden;
}

.status-bar {
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 2px;
    margin-bottom: 10px;
    opacity: 0.6;
    width: 60%;
}

.chat-avatars {
    display: none;
}

.avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 170, 0.4);
}

.avatar-1 { background: linear-gradient(45deg, #00ffaa, #00d4ff); }
.avatar-2 { background: linear-gradient(45deg, #00d4ff, #8a2be2); }
.avatar-3 { background: linear-gradient(45deg, #8a2be2, #ff6b35); }
.avatar-4 { background: linear-gradient(45deg, #ff6b35, #00ffaa); }

.features-controls {
    display: flex;
    align-items: center;
    gap: 30px;
}

.prev-btn, .next-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: rgba(0, 0, 0, 0.8);
    color: var(--primary-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.prev-btn:hover, .next-btn:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.6);
    transform: scale(1.1);
}

/* CTA区域样式 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-white) 100%);
    color: var(--text-white);
    text-align: center;
    border-top: 1px solid rgba(0, 255, 170, 0.2);
    border-bottom: 1px solid rgba(0, 255, 170, 0.2);
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-main-button {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border: none;
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
}

.cta-main-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

/* 页脚样式 */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(0, 255, 170, 0.2);
}

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-name {
    height: 32px;
    width: auto;
}

.footer-slogan {
    color: var(--accent-color);
    font-weight: 500;
    margin-top: 8px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 170, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 255, 170, 0.2);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}
.footer-bottom p a{
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
}
.footer-bottom p a img{
    width: 20px;
    height: 20px;
    vertical-align: middle;
}
/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .feature-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 60px;
        text-align: center;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .hero-text-content {
        bottom: 30px;
        max-width: 600px;
    }
    
    .hero-logos {
        top: 25vh;
        gap: 12px;
    }
    
    .hero-logo {
        height: 100px;
    }
    
    .hero-name {
        height: 60px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-slogan {
        font-size: 2.5rem;
    }
    
    .hero-logos {
        gap: 10px;
        top: 20vh;
    }
    
    .hero-logo {
        height: 80px;
    }
    
    .hero-name {
        height: 50px;
    }
    
    .hero-text-content .hero-actions {
        justify-content: center;
    }
    
    .hero-text-content .primary-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .feature-content {
        padding: 0 40px;
        gap: 30px;
    }
    
    .feature-title {
        font-size: 2.5rem;
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
    
    .features-controls {
        gap: 20px;
    }
    
    .nav-indicators {
        gap: 12px;
    }
    
    .nav-dot {
        width: 10px;
        height: 10px;
    }
    
    .prev-btn, .next-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .hero-text-content {
        bottom: 25px;
        max-width: 500px;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-slogan {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .feature-content {
        padding: 0 20px;
        gap: 20px;
    }
    
    .feature-title {
        font-size: 2rem;
    }
    
    .feature-description {
        font-size: 1rem;
    }
    
    .phone-mockup {
        width: 180px;
        height: 360px;
        padding: 15px;
    }
    
    .features-controls {
        gap: 15px;
    }
    
    .nav-indicators {
        gap: 10px;
    }
    
    .nav-dot {
        width: 8px;
        height: 8px;
    }
    
    .prev-btn, .next-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .hero-text-content {
        bottom: 20px;
        max-width: 350px;
        padding: 0 15px;
    }
    
    .hero-logos {
        top: 15vh;
        gap: 8px;
    }
    
    .hero-logo {
        height: 70px;
    }
    
    .hero-name {
        height: 45px;
    }
    
    .hero-slogan {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}

/* AOS动画覆盖 */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition-property: opacity, transform;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}