/* ======== 公共变量 ======== */
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #263348;
    --border: rgba(148, 163, 184, 0.1);
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

/* ======== 基础样式 ======== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-light); }

/* ======== 导航 ======== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 64px;
    display: flex; align-items: center; justify-content: space-between;
}

.nav-brand {
    font-size: 1.3rem; font-weight: 700;
    color: var(--text);
}
.nav-brand span { color: var(--primary-light); }

.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* 语言切换 */
.lang-switch {
    color: var(--text-muted) !important;
    font-size: 0.8rem !important;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}
.lang-switch:hover {
    color: var(--accent-light) !important;
    border-color: var(--accent-light);
}

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 24px; border: none; border-radius: 8px;
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    transition: all 0.2s; text-decoration: none;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

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

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }

/* ======== Hero ======== */
.hero {
    padding: 160px 24px 100px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(79, 70, 229, 0.15);
    color: var(--accent-light);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text) 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ======== 区域 ======== */
.section {
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 48px;
    font-size: 1.05rem;
}

/* ======== 卡片 ======== */
.card-grid {
    display: grid;
    gap: 24px;
}

.card-grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card-grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s;
}

.card:hover {
    border-color: rgba(79, 70, 229, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.card-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.card-icon.purple { background: rgba(79, 70, 229, 0.15); color: var(--primary-light); }
.card-icon.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-light); }
.card-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.card-icon.amber { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }

/* ======== 步骤 ======== */
.steps { counter-reset: step; }
.step {
    display: flex; gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: none; }

.step-num {
    width: 48px; height: 48px; min-width: 48px;
    border-radius: 50%;
    background: rgba(79, 70, 229, 0.15);
    color: var(--primary-light);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; font-weight: 700;
}

.step-content h4 { font-size: 1.1rem; margin-bottom: 4px; }
.step-content p { color: var(--text-secondary); font-size: 0.95rem; }

/* ======== 代码块 ======== */
.code-block {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 20px 0;
    width: 100%;
}

.code-block .code-header {
    background: rgba(255,255,255,0.03);
    padding: 10px 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
}

.code-block .copy-btn {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    font-size: 0.8rem; padding: 4px 8px; border-radius: 4px;
}
.code-block .copy-btn:hover { background: rgba(255,255,255,0.05); color: var(--text); }

.code-block pre {
    padding: 20px;
    overflow-x: auto;
    font-size: 0.88rem;
    line-height: 1.7;
}

.code-block code {
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, monospace;
    color: #c9d1d9;
}

/* ======== 统计 ======== */
.stats {
    display: flex; gap: 32px; justify-content: center; flex-wrap: wrap;
    margin-top: 48px;
}

.stat {
    text-align: center;
    padding: 24px 36px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.stat .num {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat .label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }

/* ======== 开源卡片 ======== */
.open-source-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.os-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    transition: all 0.3s;
}

.os-card:hover {
    border-color: rgba(79, 70, 229, 0.3);
    transform: translateY(-2px);
}

.os-card .os-icon { font-size: 2rem; margin-bottom: 12px; }
.os-card h4 { margin-bottom: 8px; }
.os-card p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; }

.os-card code {
    background: #0d1117;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #c9d1d9;
    display: inline-block;
}

/* ======== Footer ======== */
.footer {
    text-align: center;
    padding: 48px 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer a { color: var(--text-secondary); }
.footer a:hover { color: var(--text); }
.footer .divider { margin: 0 12px; color: var(--border); }

/* ======== 表单页 ======== */
.auth-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
    background: var(--bg);
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 540px;
    box-shadow: var(--shadow);
}

.auth-card .brand {
    text-align: center; margin-bottom: 36px;
}

.auth-card .brand h1 {
    font-size: 1.6rem; font-weight: 700; color: var(--text);
}
.auth-card .brand h1 span { color: var(--primary-light); }
.auth-card .brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 4px; }

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block; margin-bottom: 6px;
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    background: rgba(255,255,255,0.06);
}

.form-control::placeholder { color: var(--text-muted); }

.form-control-full {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
    margin-top: 8px;
}

.btn-full { width: 100%; }

.alert {
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: none;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

.auth-footer {
    text-align: center; margin-top: 24px;
    color: var(--text-muted); font-size: 0.9rem;
}

/* ======== Dashboard ======== */
.dash-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 24px 48px;
}

.dash-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap; gap: 16px;
}

.dash-header h2 { font-size: 1.5rem; }

.dash-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-bottom: 40px;
}

.dash-stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.dash-stat .stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.dash-stat .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
}

/* API Key 卡片 */
.key-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 32px;
}

.key-card .key-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px;
}

.key-card .key-value {
    background: #0d1117;
    padding: 14px 18px;
    border-radius: 8px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    color: var(--accent-light);
    word-break: break-all;
    border: 1px solid var(--border);
}

/* 经验表格 */
.doc-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.doc-table th,
.doc-table td {
    padding: 14px 18px;
    text-align: left;
    font-size: 0.9rem;
}

.doc-table th {
    background: rgba(255,255,255,0.03);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-table td { border-top: 1px solid var(--border); color: var(--text-secondary); }

.doc-table tr:hover td { background: rgba(255,255,255,0.02); }

.doc-table .title-link { color: var(--text); font-weight: 500; }
.doc-table .title-link:hover { color: var(--accent-light); }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-active { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-completed { background: rgba(79, 70, 229, 0.15); color: var(--primary-light); }
.badge-broken { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-deprecated { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

/* 操作按钮组 */
.actions { display: flex; gap: 8px; }

.pagination {
    display: flex; justify-content: center; gap: 8px;
    margin-top: 24px;
}

.pagination button {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.pagination button:hover { border-color: var(--primary); color: var(--text); }
.pagination button.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* 搜索框 */
.search-box {
    display: flex; gap: 10px;
    margin-bottom: 24px;
}

.search-box input {
    flex: 1;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.9rem;
}

.search-box input:focus { outline: none; border-color: var(--primary-light); }

/* Toast */
.toast {
    position: fixed; top: 80px; right: 24px;
    z-index: 1000;
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    transform: translateX(120%);
    transition: transform 0.3s;
    max-width: 400px;
}

.toast.show { transform: translateX(0); }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6); z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
}
.modal-overlay.hidden { display: none; }

.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 740px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 36px;
    box-shadow: var(--shadow);
}

.modal-box h3 { font-size: 1.3rem; margin-bottom: 20px; }

.modal-box .modal-meta {
    display: flex; gap: 16px; flex-wrap: wrap;
    margin-bottom: 20px;
    font-size: 0.85rem;
}

.modal-box .modal-meta span {
    padding: 4px 12px;
    background: rgba(255,255,255,0.04);
    border-radius: 6px;
    color: var(--text-secondary);
}

.modal-box .modal-content {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    line-height: 1.8;
    white-space: pre-wrap;
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-height: 400px;
    overflow-y: auto;
}

.modal-box .modal-actions {
    display: flex; gap: 10px; justify-content: flex-end;
}

.form-row { display: flex; gap: 16px; margin-bottom: 16px; }
.form-row .form-group { flex: 1; }

.form-group textarea.form-control {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

/* 表格内小选择框 */
.select-sm {
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.8rem;
    cursor: pointer;
    width: 110px;
}
.select-sm:focus { outline: none; border-color: var(--primary-light); }
.select-sm option { background: var(--bg-card); color: var(--text); }

.doc-table .col-id { width: 55px; }
.doc-table .col-title { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-table .col-type { width: 140px; }
.doc-table .col-status { width: 90px; }
.doc-table .col-time { width: 100px; }
.doc-table .col-actions { width: 260px; }

/* Docker 部署指引步骤 */
.docker-step {
    display: flex; gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}
.docker-step:last-child { border-bottom: none; }

.docker-step-num {
    width: 40px; height: 40px; min-width: 40px;
    border-radius: 50%;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; font-weight: 700;
    margin-top: 2px;
}

.docker-step-body { flex: 1; }
.docker-step-body h4 { font-size: 1.05rem; margin-bottom: 6px; }
.docker-step-body p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }
.docker-step-body a { font-weight: 500; }

.os-card-clickable { cursor: pointer; }
.os-card-clickable:hover { border-color: var(--primary-light); }

.docker-guide .code-block { margin: 8px 0; }
.docker-guide .code-block pre { padding: 14px 18px; }
.docker-guide .code-block code { font-size: 0.82rem; }

/* 响应式 */
@media (max-width: 768px) {
    .hero { padding: 120px 20px 60px; }
    .hero h1 { font-size: 1.8rem; }
    .section { padding: 48px 20px; }
    .section-title { font-size: 1.5rem; }
    .auth-card { padding: 36px 24px; }
    .doc-table { display: block; overflow-x: auto; }
    .nav-links { gap: 12px; }
    .nav-links a.hide-mobile { display: none; }
    .stats { gap: 16px; }
}