/* Global Styles */
:root {
    --primary-color: #4a90e2;
    --secondary-color: #6c5ce7;
    --accent-color: #00d2d3;
    --text-color: #2d3436;
    --light-text: #636e72;
    --background: #ffffff;
    --card-bg: #f8f9fa;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: transform 0.3s ease, background-color 0.3s ease, padding 0.3s ease;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
    transition: var(--transition);
}

.logo span {
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

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

/* Hero Section */
.hero-section {
    min-height: 100vh;
    padding: 8rem 2rem 4rem;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(5px);
}

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

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn:hover::after {
    animation: ripple 1s ease-out;
}

.hero-image {
    position: relative;
    perspective: 1000px;
}

.image-container {
    position: relative;
    transform-style: preserve-3d;
    animation: float 6s ease-in-out infinite;
}

.image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    bottom: -20px;
    left: -20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    transform: translateZ(-20px);
    animation: rotate 20s linear infinite;
}

.image-decoration::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    position: relative;
    z-index: 1;
    transform: translateZ(0) translateY(calc(30px + 10vh)) scale(1.265);
    transition: transform 0.3s ease;
}

.hero-image:hover img {
    transform: translateZ(20px) translateY(calc(30px + 10vh)) scale(1.32);
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotateX(0) rotateY(0); }
    25% { transform: translateY(-10px) rotateX(2deg) rotateY(2deg); }
    50% { transform: translateY(0) rotateX(0) rotateY(0); }
    75% { transform: translateY(10px) rotateX(-2deg) rotateY(-2deg); }
}

@keyframes rotate {
    from { transform: translateZ(-20px) rotate(0deg); }
    to { transform: translateZ(-20px) rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
}

/* Feature Cards */
.features-section {
    padding: 6rem 2rem;
    background: var(--background);
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

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

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease, color 0.3s ease;
}

.feature-card h3 {
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--light-text);
    position: relative;
    z-index: 1;
}

/* Screenshots Section */
.screenshots-section {
    padding: 6rem 2rem;
    background: var(--card-bg);
}

.screenshots-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 0 1rem;
}

.screenshot-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    aspect-ratio: 16/22.5;
}

.screenshot-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
    transform: translateY(100%);
    transition: var(--transition);
    transition: transform 0.3s ease;
}

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

.screenshot-card:hover .screenshot-overlay {
    transform: translateY(0);
}

.screenshot-card:hover img {
    transform: scale(1.1);
}

/* Download Section */
.download-section {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    position: relative;
    overflow: hidden;
}

.download-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    margin-top: 2rem;
}

.version-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
}

.download-buttons .btn {
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 50px;
}

/* Contact Section */
.contact-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--card-shadow);
}

.contact-form .form-control {
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid #eee;
    transition: var(--transition);
}

.contact-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(74, 144, 226, 0.25);
}

/* Footer */
.footer {
    background-color: #000000;
    padding: 2rem 0;
    text-align: center;
}

.footer-bottom {
    color: #ffffff;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

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

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 3rem 0;
}

/* Animations */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .image-decoration {
        display: none;
    }

    .hero-image img {
        max-width: 100%;
    }

    .floating-badge {
        right: 50%;
        transform: translateX(50%);
    }

    .feature-card {
        margin-bottom: 2rem;
    }

    .download-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .download-buttons .btn {
        width: 100%;
    }

    .contact-card {
        padding: 2rem;
    }

    .feature-card:hover {
        transform: translateY(-5px);
    }
    
    .screenshot-card:hover {
        transform: translateY(-5px);
    }
    
    .btn:hover {
        transform: translateY(-2px);
    }
}

/* Section Headers */
.section-header {
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header .lead {
    color: #666;
    font-size: 1.2rem;
}

/* 动画相关样式 */
.ripple {
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 1001;
    transition: width 0.1s ease;
}

.parallax {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* 图片加载动画 */
img {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

img.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* 功能图标动画 */
.feature-icon {
    transition: transform 0.3s ease, color 0.3s ease;
}

/* 截图卡片动画 */
.screenshot-overlay {
    transition: transform 0.3s ease;
}

/* 页面加载动画 */
body {
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

/* 动画性能优化 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (min-width: 1200px) {
    .screenshots-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1199px) and (min-width: 768px) {
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}