:root {
    /* 主题色变量 - 简洁统一色系 */
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #6366f1;
    --accent: #8b5cf6;
    --background: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.85);
    --text: #1e293b;
    --text-light: #64748b;
    --radius: 16px;
    --shadow: rgba(0, 0, 0, 0.08);
    
    /* 暗色主题变量 - 简洁深色系 */
    --dark-primary: #60a5fa;
    --dark-primary-dark: #3b82f6;
    --dark-secondary: #818cf8;
    --dark-accent: #a78bfa;
    --dark-background: #0f172a;
    --dark-card-bg: rgba(30, 41, 59, 0.85);
    --dark-text: #f1f5f9;
    --dark-text-light: #94a3b8;
    
    /* 背景渐变 - 更柔和的渐变 */
    --gradient-light: linear-gradient(135deg, #dbeafe, #ede9fe, #e0e7ff);
    --gradient-dark: linear-gradient(135deg, #1e3a8a, #312e81, #4338ca);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'SF Pro Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

/* 全局主题切换 */
html, body {
    transition: background-color 0.5s ease, color 0.5s ease;
}

body {
    background: var(--gradient-light);
    background-size: 300% 300%;
    animation: gradientShift 20s ease infinite;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px 20px;
    background-attachment: fixed;
    color: var(--text);
}

body.dark-mode {
    background: var(--gradient-dark);
    background-size: 300% 300%;
    animation: gradientShift 20s ease infinite;
    color: var(--dark-text);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
}

/* 毛玻璃卡片 - 改进设计 */
.glass-card {
    position: relative;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 15px 35px var(--shadow), 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.5s ease;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.dark-mode .glass-card {
    background: var(--dark-card-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25), 0 5px 15px rgba(0, 0, 0, 0.1);
}

.glass-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px var(--shadow), 0 8px 20px rgba(0, 0, 0, 0.07);
}

.dark-mode .glass-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* 卡片内容区域 - 改进布局 */
.card-header {
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: border-color 0.5s ease;
    background: rgba(255, 255, 255, 0.1);
}

.dark-mode .card-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.1);
}

.card-header h1 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-dark);
    transition: color 0.5s ease;
    letter-spacing: -0.02em;
}

.dark-mode .card-header h1 {
    color: var(--dark-primary);
}

.subtitle {
    font-size: clamp(0.85rem, 1.5vw, 1rem);
    color: var(--text-light);
    margin-bottom: 0;
    transition: color 0.5s ease;
    max-width: 80%;
    margin: 0 auto;
    line-height: 1.5;
}

.dark-mode .subtitle {
    color: var(--dark-text-light);
}

.card-body {
    padding: 30px;
}

/* 表单元素 - 改进设计 */
.form-container {
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease, background 0.5s ease, box-shadow 0.5s ease;
    display: flex;
    align-items: center;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.dark-mode .input-group {
    background: rgba(30, 41, 59, 0.95);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.input-group:focus-within {
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.15), 0 2px 5px rgba(59, 130, 246, 0.1);
    transform: scale(1.005);
    border-color: var(--primary);
}

.dark-mode .input-group:focus-within {
    box-shadow: 0 6px 16px rgba(96, 165, 250, 0.2), 0 2px 5px rgba(96, 165, 250, 0.1);
    border-color: var(--dark-primary);
}

.input-icon {
    padding: 0 15px;
    color: var(--primary);
    font-size: 20px;
    transition: color 0.5s ease;
}

.dark-mode .input-icon {
    color: var(--dark-primary);
}

.input-group input {
    width: 100%;
    padding: 16px 0;
    border: none;
    background: transparent;
    font-size: 0.95rem;
    color: var(--text);
    outline: none;
    transition: color 0.5s ease;
}

.dark-mode .input-group input {
    color: var(--dark-text);
}

.input-group input::placeholder {
    color: var(--text-light);
    opacity: 0.7;
    transition: color 0.5s ease;
}

.dark-mode .input-group input::placeholder {
    color: var(--dark-text-light);
}

/* 按钮容器居中样式 */
.button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin: 0 auto;
    width: 100%;
    max-width: 300px;
}

/* 统一按钮样式 */
.btn, 
.direct-download a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    gap: 8px;
    padding: 14px 0;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

/* 主按钮样式 - 生成代理链接按钮 */
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.25);
}

.dark-mode .btn-primary {
    background: var(--dark-primary);
    box-shadow: 0 6px 16px rgba(96, 165, 250, 0.25);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

.dark-mode .btn-primary:hover {
    background: var(--dark-primary-dark);
    box-shadow: 0 8px 20px rgba(96, 165, 250, 0.35);
}

/* 直接下载按钮 */
.direct-download {
    width: 100%;
}

.direct-download a {
    background: rgba(255, 255, 255, 0.8);
    color: var(--primary-dark);
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.dark-mode .direct-download a {
    background: rgba(30, 41, 59, 0.8);
    color: var(--dark-primary);
    border: 1px solid rgba(96, 165, 250, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.direct-download a:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
}

.dark-mode .direct-download a:hover {
    background: rgba(30, 41, 59, 0.9);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* 结果容器中的按钮组 */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px auto 0;
    width: 100%;
    max-width: 300px;
}

/* 代理链接按钮 */
.proxy-link-btn {
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.25);
}

.dark-mode .proxy-link-btn {
    background: var(--dark-primary);
    box-shadow: 0 6px 16px rgba(96, 165, 250, 0.25);
}

.proxy-link-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

.dark-mode .proxy-link-btn:hover {
    background: var(--dark-primary-dark);
    box-shadow: 0 8px 20px rgba(96, 165, 250, 0.35);
}

/* 结果容器 - 改进设计 */
.result-container {
    display: none;
    margin-top: 30px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    animation: fadeIn 0.5s ease;
    transition: background 0.5s ease, box-shadow 0.5s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
    text-align: center;
}

.dark-mode .result-container {
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.result-title {
    font-size: 1.1rem;
    margin-bottom: 18px;
    color: var(--primary-dark);
    transition: color 0.5s ease;
    font-weight: 600;
    text-align: center;
}

.dark-mode .result-title {
    color: var(--dark-primary);
}

.url-copy-container {
    display: flex;
    margin-bottom: 18px;
    width: 100%;
    height: 48px;
}

.url-copy-container input {
    flex: 1;
    padding: 0 14px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px 0 0 8px;
    font-size: 0.9rem;
    outline: none;
    background: white;
    color: var(--text);
    transition: background 0.5s ease, color 0.5s ease, border-color 0.5s ease;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.dark-mode .url-copy-container input {
    background: var(--dark-background);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--dark-text);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .button-container,
    .action-buttons {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .btn, 
    .direct-download a,
    .proxy-link-btn {
        padding: 12px 0;
        font-size: 0.9rem;
    }
    
    .action-buttons {
        gap: 10px;
    }
}

/* 特性网格 - 改进布局 */
.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.grid-item {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 22px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease, background 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05), 0 2px 5px rgba(0, 0, 0, 0.03);
}

.dark-mode .grid-item {
    background: var(--dark-card-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15), 0 2px 5px rgba(0, 0, 0, 0.1);
}

.grid-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08), 0 3px 8px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.dark-mode .grid-item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25), 0 3px 8px rgba(0, 0, 0, 0.15);
    border-color: var(--dark-primary);
}

.grid-item h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    color: var(--primary-dark);
    transition: color 0.5s ease;
    font-weight: 600;
}

.dark-mode .grid-item h3 {
    color: var(--dark-primary);
}

.grid-item p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
    transition: color 0.5s ease;
    line-height: 1.5;
}

.dark-mode .grid-item p {
    color: var(--dark-text-light);
}

/* 卡片底部 - 改进设计 */
.card-footer {
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.5s ease, border-color 0.5s ease;
}

.dark-mode .card-footer {
    background: rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* 主题控制区域 - 改进设计 */
.theme-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-indicator {
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.8;
    transition: color 0.5s ease;
}

.dark-mode .theme-indicator {
    color: var(--dark-text-light);
}

.theme-toggle {
    background: rgba(0, 0, 0, 0.05);
    border: none;
    cursor: pointer;
    color: var(--text);
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, color 0.5s ease, background 0.3s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.dark-mode .theme-toggle {
    color: var(--dark-text);
    background: rgba(255, 255, 255, 0.1);
}

.theme-toggle:hover {
    transform: rotate(15deg);
    background: rgba(59, 130, 246, 0.1);
}

.dark-mode .theme-toggle:hover {
    background: rgba(96, 165, 250, 0.2);
}

/* 响应式布局优化 */
@media (max-width: 768px) {
    .card-header, .card-body, .card-footer {
        padding: 25px;
    }
    
    .action-buttons {
        max-width: 100%;
    }
    
    .btn, .direct-download a {
        width: 100%;
    }
    
    .grid-container {
        grid-template-columns: repeat(auto-fit, minmax(100%, 1fr));
        gap: 15px;
    }
    
    .subtitle {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    .container {
        padding: 0;
    }
    
    .card-header {
        padding: 20px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .card-header h1 {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 0.85rem;
    }
    
    .input-group input {
        padding: 14px 0;
    }
    
    .btn, .direct-download a {
        padding: 14px 20px;
        font-size: 0.9rem;
    }
    
    .grid-item {
        padding: 18px;
    }
    
    .card-footer {
        padding: 15px 20px;
        flex-direction: column;
        gap: 10px;
    }
    
    .theme-controls {
        width: 100%;
        justify-content: center;
    }
    
    .action-buttons {
        gap: 10px;
    }
}

/* 顶部链接容器 */
.top-links {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

/* GitHub链接样式 */
.github-link, .docker-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: white;
    border-radius: 2rem;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.github-link {
    background: var(--primary);
}

.docker-link {
    background: #2496ED; /* Docker官方蓝色 */
}

.github-link:hover, .docker-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.github-link:hover {
    background: var(--primary-dark);
}

.docker-link:hover {
    background: #1d7ac7; /* 深一点的Docker蓝 */
}

.github-icon, .docker-icon {
    width: 20px;
    height: 20px;
}

.dark-mode .github-link {
    background: var(--dark-primary);
}

.dark-mode .github-link:hover {
    background: var(--dark-primary-dark);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .github-text, .docker-text {
        display: none; /* 在小屏幕上只显示图标 */
    }
    
    .github-link, .docker-link {
        padding: 0.5rem;
    }
}