/* 全局样式 */
:root {
    --primary-color: #8c52ff;
    --secondary-color: #5e17eb;
    --accent-color: #ffd700;
    --text-color: #333333;
    --light-text: #ffffff;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --gray-bg: #f0f2f5;
    --border-radius: 12px;
    --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}

.primary-btn {
    background: var(--primary-color);
    color: var(--light-text);
    border: 2px solid var(--primary-color);
}

.primary-btn:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-btn:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-3px);
}

/* 导航栏 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

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

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

nav {
    display: flex;
    align-items: center;
}

.desktop-menu {
    display: flex;
}

.desktop-menu li {
    margin: 0 15px;
}

.desktop-menu a {
    font-weight: 500;
    position: relative;
}

.desktop-menu a:hover {
    color: var(--primary-color);
}

.desktop-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

.desktop-menu a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 2px 0;
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: white;
    padding: 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
}

.mobile-menu li {
    margin: 10px 0;
}

.mobile-menu a {
    font-weight: 500;
}

.mobile-menu a:hover {
    color: var(--primary-color);
}

/* 英雄区域 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e7ec 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/pattern.png');
    opacity: 0.05;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-content h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    max-width: 500px;
    animation: float 3s ease-in-out infinite;
}

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

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.about-image img:hover {
    transform: scale(1.05);
}

/* 特点 */
.features {
    padding: 100px 0;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: 50%;
    color: white;
}

.feature-icon i {
    font-size: 40px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* 社区 */
.community {
    padding: 100px 0;
    background-color: white;
}

.community-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.community-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.community-btn {
    display: flex;
    align-items: center;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.community-btn i {
    font-size: 1.5rem;
    margin-right: 10px;
}

.community-btn.telegram {
    background: #0088cc;
    color: white;
}

.community-btn.twitter {
    background: #1da1f2;
    color: white;
}

.community-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

/* 页脚 */
footer {
    background: var(--dark-bg);
    color: var(--light-text);
    padding: 70px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-text);
}

.footer-links {
    display: flex;
    gap: 50px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-column ul li {
    margin-bottom: 10px;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.footer-social i {
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 3.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .desktop-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 50px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text {
        margin-bottom: 30px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
        margin-top: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .community-buttons {
        flex-direction: column;
        gap: 15px;
    }
}