/* release-site/styles.css */
:root {
    --bg-main: #090a0f;
    --bg-surface: #10121a;
    --bg-surface-elevated: #161924;
    --bg-card: rgba(22, 25, 38, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.18);
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.35);
    
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px -10px var(--primary-glow);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* 背景光效 */
.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    top: -150px;
    left: 20%;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
    top: 400px;
    right: -100px;
}

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* 导航栏 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 10, 15, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-logo {
    display: block;
    border-radius: 8px;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.version-tag {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* 按钮规范 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid transparent;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%);
    color: #ffffff;
    box-shadow: 0 4px 20px -2px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #1d4ed8 100%);
    box-shadow: 0 8px 25px 0 var(--primary-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #1f2333;
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* Hero 区域 */
.hero-section {
    padding: 100px 0 80px;
    text-align: center;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 860px;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.text-gradient {
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #f472b6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin-bottom: 36px;
    line-height: 1.6;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 44px;
}

.feature-tag {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.hero-cta-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.download-sublinks {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.875rem;
}

.sublink {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.sublink:hover {
    color: #60a5fa;
    text-decoration: underline;
}

.divider {
    color: var(--text-muted);
}

.system-note {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 通用 Section */
.section {
    padding: 80px 0;
}

.section-darker {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 56px;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #60a5fa;
    display: block;
    margin-bottom: 8px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

/* 栅格 */
.grid {
    display: grid;
    gap: 24px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

/* 特性卡片 */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.4);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.card-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 步骤卡片 */
.step-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    position: relative;
}

.step-num {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 800;
    color: rgba(59, 130, 246, 0.4);
    margin-bottom: 16px;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.step-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.key-badge {
    display: inline-block;
    padding: 3px 8px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: #e2e8f0;
    background: #1e2230;
    border: 1px solid #334155;
    border-radius: 6px;
    box-shadow: 0 2px 0 #0f172a;
    margin: 0 2px;
}

/* 规格参数 */
.specs-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 44px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.specs-heading {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #60a5fa;
}

.specs-list {
    list-style: none;
}

.specs-list li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.specs-list li:last-child {
    border-bottom: none;
}

.specs-list strong {
    color: var(--text-primary);
    margin-right: 6px;
}

.highlight {
    color: #10b981;
    font-weight: 600;
}

.code-pill {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
}

/* 开源许可 */
.license-box {
    max-width: 820px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 44px;
}

.license-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}

.license-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.license-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.license-callout {
    background: rgba(0, 0, 0, 0.35);
    border-left: 3px solid #3b82f6;
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    color: #cbd5e1;
    margin-bottom: 20px;
}

.link {
    color: #60a5fa;
    text-decoration: none;
}

.link:hover {
    text-decoration: underline;
}

.license-details {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.license-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* 页脚 */
.site-footer {
    padding: 48px 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-main);
}

.footer-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-right {
    display: flex;
    gap: 20px;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--text-primary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.4rem;
    }
    
    .specs-box, .license-box {
        padding: 24px;
    }
}