/* 全局样式 */
:root {
    --primary-color: #F3BA2F;
    --secondary-color: #1E2026;
    --background-color: #0B0E11;
    --text-color: #FFFFFF;
    --card-bg: #2B3139;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 2.8rem;
}

h2 {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
}

section {
    padding: 5rem 0;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.primary-btn:hover {
    background-color: #e4ad29;
    transform: translateY(-2px);
}

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

.secondary-btn:hover {
    background-color: rgba(243, 186, 47, 0.1);
    transform: translateY(-2px);
}

.download-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

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

.download-btn svg {
    margin-right: 0.5rem;
}

/* 头部导航栏 */
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    background-color: rgba(11, 14, 17, 0.95);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

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

.logo a {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo svg, .logo-svg {
    margin-right: 0.5rem;
}

.main-nav ul {
    display: flex;
    align-items: center;
}

.main-nav li {
    margin-left: 2rem;
}

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

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

.mobile-menu-toggle span {
    height: 3px;
    width: 25px;
    background-color: var(--text-color);
    margin-bottom: 4px;
    border-radius: 3px;
    transition: var(--transition);
}

/* 英雄区块 */
.hero {
    padding-top: 8rem;
    padding-bottom: 4rem;
    background: linear-gradient(180deg, var(--background-color) 0%, #151921 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    width: 50%;
}

.hero h1 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

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

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

.hero-image {
    width: 40%;
}

/* 特点区块 */
.features {
    background-color: var(--secondary-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    margin-bottom: 1.5rem;
}

/* 下载区块 */
.download {
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--background-color) 100%);
    text-align: center;
}

.download p {
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.download-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.download-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 350px;
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.download-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.download-card p {
    margin-bottom: 1.5rem;
}

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

/* 关于我们区块 */
.about {
    text-align: center;
}

.about p {
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-text {
    font-size: 1rem;
}

/* 页脚 */
footer {
    background-color: var(--secondary-color);
    padding: 4rem 0 2rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

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

.footer-column h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a:hover svg path {
    fill: #ffffff;
}

/* 响应式设计 */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: 2rem;
        max-width: 300px;
    }
    
    .footer-top {
        flex-direction: column;
    }
    
    .footer-links {
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .stats {
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-social {
        margin-top: 1rem;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1.5rem;
    }
}