/* AI 路由服务 - 前端样式 */
/* 暗色主题，简洁现代 */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #818cf8;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;
    --border: #334155;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* 导航栏 */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}
.logo-icon { font-size: 22px; }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-admin {
    padding: 6px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    color: var(--text-primary) !important;
}

/* 公告栏 */
.announcement {
    background: linear-gradient(90deg, rgba(99,102,241,0.15), rgba(99,102,241,0.05));
    border-bottom: 1px solid rgba(99,102,241,0.2);
    padding: 10px 20px;
    text-align: center;
    font-size: 14px;
    color: var(--accent-light);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 80px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.hero-content { max-width: 640px; margin: 0 auto; }
.hero h1 { font-size: 36px; margin-bottom: 12px; }
.hero-desc { color: var(--text-secondary); font-size: 18px; margin-bottom: 32px; }
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 32px;
}
.stat { text-align: center; }
.stat-value { display: block; font-size: 28px; font-weight: 800; color: var(--accent-light); }
.stat-label { font-size: 13px; color: var(--text-muted); }
.hero-actions { display: flex; gap: 16px; justify-content: center; }

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-tertiary); }
.btn-block { display: block; width: 100%; }

/* 功能特性 */
.features { padding: 64px 0; }
.section-title { text-align: center; font-size: 28px; margin-bottom: 8px; }
.section-subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 40px; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform 0.2s, border-color 0.2s;
}
.feature-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.feature-icon { font-size: 32px; margin-bottom: 12px; }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 14px; }

/* 通用 Section */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-secondary); }

/* 卡片 */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 560px;
    margin: 0 auto;
}

/* 表单 */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--text-secondary); }
.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--accent); }

/* 申请结果 */
.apply-result {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-primary);
    border: 1px solid var(--success);
    border-radius: var(--radius);
}
.result-success { border-color: var(--success); }
.result-error { border-color: var(--error); }
.result-token {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 16px;
    background: var(--bg-tertiary);
    padding: 12px 16px;
    border-radius: 8px;
    word-break: break-all;
    margin: 12px 0;
    color: var(--accent-light);
    font-weight: 600;
}
.result-info { display: flex; justify-content: space-between; margin: 8px 0; font-size: 14px; }
.result-info span:first-child { color: var(--text-secondary); }
.result-info span:last-child { color: var(--text-primary); font-weight: 600; }

/* 查询结果 */
.check-result {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-primary);
    border-radius: var(--radius);
}
.usage-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin: 12px 0;
    overflow: hidden;
}
.usage-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--accent-light));
    border-radius: 4px;
    transition: width 0.5s;
}
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}
.status-active { background: rgba(74,222,128,0.15); color: var(--success); }
.status-expired { background: rgba(248,113,113,0.15); color: var(--error); }
.status-disabled { background: rgba(251,191,36,0.15); color: var(--warning); }

/* API 文档 */
.docs-content { max-width: 720px; margin: 0 auto; }
.doc-step {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
}
.step-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}
.step-body { flex: 1; }
.step-body h3 { margin-bottom: 8px; }
.step-body p { color: var(--text-secondary); margin-bottom: 12px; }

/* 代码块 */
.code-block {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    margin: 8px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.code-block code {
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
    color: var(--accent-light);
    word-break: break-all;
}
pre {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    margin-top: 12px;
}
pre code {
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    white-space: pre;
}
.copy-btn {
    flex-shrink: 0;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}
.copy-btn:hover { background: var(--accent); color: #fff; }

/* 标签栏 */
.tab-bar { display: flex; gap: 4px; margin-top: 12px; border-bottom: 1px solid var(--border); }
.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
.tab-btn.active { color: var(--accent-light); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* 参数表 */
.doc-params { margin-top: 40px; }
.params-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.params-table th, .params-table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.params-table th { color: var(--text-secondary); }
.params-table td code { color: var(--accent-light); font-family: monospace; }

/* 联系方式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}
.contact-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: transform 0.2s;
}
.contact-card:hover { transform: translateY(-2px); }
.contact-icon { font-size: 32px; margin-bottom: 12px; }
.contact-card h3 { margin-bottom: 8px; }
.contact-card p { color: var(--text-secondary); margin-bottom: 12px; word-break: break-all; }

/* 页脚 */
.footer {
    padding: 32px 20px;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 14px;
}
.footer-sub { margin-top: 4px; font-size: 12px; }

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }

/* 响应式 */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 26px; }
    .hero-stats { gap: 24px; }
    .stat-value { font-size: 22px; }
    .hero-actions { flex-direction: column; }
    .doc-step { flex-direction: column; gap: 12px; }
    .feature-grid { grid-template-columns: 1fr; }
}