:root {
    --primary-color: #7c3aed;
    --primary-light: #8b5cf6;
    --primary-dark: #6d28d9;
    --accent-color: #10b981;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

@font-face {
    font-family: 'iconfont';
    src: url('iconfont.ttf?t=1755907346437') format('truetype');
}

.iconfont {
    font-family: "iconfont" !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
}

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

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

/* 导航栏样式 */
.nav_bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    z-index: 1000;
    transition: var(--transition);
}

.nav_bar.scrolled {
    height: 60px;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
}

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

.nav_buttons {
    display: flex;
    gap: 20px;
}

.nav_button {
    font-size: 24px;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav_button:hover {
    color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.1);
}

/* Language switcher styles */
.language-switcher {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    width: auto;
    height: 40px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border: 2px solid transparent;
    background: transparent;
    font-family: 'Inter', sans-serif;
}

.language-switcher:hover {
    color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.1);
    border-color: var(--primary-color);
}

/* 主内容区样式 */
.hero_section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 60px;
    position: relative;
    overflow: hidden;
}

.hero_content {
    text-align: center;
    max-width: 800px;
    z-index: 2;
}

.hero_logos {
    position: relative;
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.hero_logo {
    position: absolute;
    transition: var(--transition);
    height: 150px;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.1));
}

.hero_logo:nth-child(1) {
    transform: translateX(-20px) rotate(-5deg);
}

.hero_logo:nth-child(2) {
    z-index: 2;
    height: 180px;
}

.hero_logo:nth-child(3) {
    transform: translateX(20px) rotate(5deg);
}

.hero_logos:hover .hero_logo:nth-child(1) {
    transform: translateX(-100px) rotate(-10deg);
}

.hero_logos:hover .hero_logo:nth-child(3) {
    transform: translateX(100px) rotate(10deg);
}

.hero_title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero_subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero_buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

button {
    height: 55px;
    min-width: 180px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.white_button {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background-color: var(--bg-white);
}

.white_button:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.green_button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 背景装饰元素 */
.bg_decoration {
    position: absolute;
    z-index: 1;
}

.bg_decoration:nth-child(1) {
    top: 10%;
    left: 5%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(124, 58, 237, 0.1), rgba(16, 185, 129, 0.1));
    filter: blur(40px);
}

.bg_decoration:nth-child(2) {
    bottom: 15%;
    right: 10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(124, 58, 237, 0.1), rgba(16, 185, 129, 0.1));
    filter: blur(50px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero_title {
        font-size: 2.5rem;
    }

    .hero_subtitle {
        font-size: 1.1rem;
    }

    .hero_logo {
        height: 120px;
    }

    .hero_logo:nth-child(2) {
        height: 140px;
    }

    .hero_logos {
        height: 160px;
    }

    .hero_logo:nth-child(1) {
        transform: translateX(-60px) rotate(-5deg);
    }

    .hero_logo:nth-child(3) {
        transform: translateX(60px) rotate(5deg);
    }

    .nav_bar {
        padding: 0 20px;
    }
}

@media (max-width: 576px) {
    .hero_buttons {
        flex-direction: column;
        align-items: center;
    }

    button {
        width: 100%;
        max-width: 300px;
    }

    .hero_logo:nth-child(1),
    .hero_logo:nth-child(3) {
        display: none;
    }

    .hero_title {
        font-size: 2rem;
    }
}

/* 动画效果 */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero_logo:nth-child(2) {
    animation: float 5s ease-in-out infinite;
}

.developers_section {
    padding: 40px 0;
}

.section_title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--primary-color);
    position: relative;
}

.section_title:after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 15px auto;
    border-radius: 2px;
}

/* 主要开发者卡片 */
.main_developers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.developer_card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.card_header {
    padding: 30px 30px 20px;
    text-align: center;
    background: linear-gradient(to bottom, var(--primary-light), var(--primary-dark));
    color: white;
}

.developer_avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.3);
    margin: 0 auto 15px;
    object-fit: cover;
}

.developer_name {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.developer_role {
    font-size: 1rem;
    opacity: 0.9;
}

.card_body {
    padding: 25px;
}

.developer_bio {
    margin-bottom: 20px;
    color: var(--text-light);
}

.developer_skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.skill_tag {
    padding: 5px 12px;
    background: rgba(124, 58, 237, 0.1);
    color: var(--primary-dark);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.social_links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social_link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

/* 贡献者部分 */
.contributors_section {
    padding: 40px 0;
}

.contributors_grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
}

.contributor_card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contributor_card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contributor_avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.contributor_name {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

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

/* 页脚 */
.footer {
    background: var(--text-color);
    color: white;
    text-align: center;
    padding: 40px 0;
    margin-top: 80px;
}

.footer_text {
    opacity: 0.8;
    margin-top: 15px;
}

.download_dropdown {
    position: relative;
    display: inline-block;
}

.download_dropdown .green_button {
    position: relative;
    z-index: 2;
}

.download_dropdown .dropdown_content {
    display: none;
    position: absolute;
    left: 0;
    top: 110%;
    background: #fff;
    min-width: 150px;
    box-shadow: 0 6px 24px rgba(124, 58, 237, 0.10), 0 1.5px 6px rgba(16, 185, 129, 0.08);
    z-index: 10;
    border-radius: 10px;
    overflow: hidden;
    padding: 6px 0;
    animation: dropdown-fade-in 0.25s;
    border: 1px solid #f0f0f0;
}

@keyframes dropdown-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.download_dropdown .dropdown_content a {
    color: var(--primary-color);
    padding: 12px 28px;
    text-decoration: none;
    display: block;
    font-weight: 600;
    font-size: 1rem;
    background: none;
    border: none;
    transition: background 0.18s, color 0.18s;
    border-left: 3px solid transparent;
}

.download_dropdown .dropdown_content a:hover {
    background: linear-gradient(90deg, #f3f4f6 60%, #e0f7ef 100%);
    color: var(--accent-color);
    border-left: 3px solid var(--accent-color);
}

.download_dropdown:hover .dropdown_content,
.download_dropdown:focus-within .dropdown_content {
    display: block;
}

@media (max-width: 576px) {
    .download_dropdown .dropdown_content {
        left: 50%;
        transform: translateX(-50%);
        min-width: 140px;
    }
}