/* 苕沂云端知识库 - 全局样式 */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-muted: #64748b;
    --sidebar-width: 280px;
    --header-height: 56px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ── Header ── */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary) !important;
}
.nav { display: flex; gap: 20px; }
.nav a {
    color: var(--text-muted);
    font-size: 14px;
}
.nav a:hover { color: var(--primary); }

/* ── Header Search ── */
.header-search {
    flex: 1;
    max-width: 320px;
    margin: 0 20px;
    display: flex;
    gap: 0;
}
.header-search-input {
    flex: 1;
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-right: none;
    border-radius: 20px 0 0 20px;
    outline: none;
    background: #f1f5f9;
    color: var(--text);
    transition: all 0.2s;
    font-family: inherit;
    min-width: 0;
}
.header-search-input:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.header-search-input::placeholder { color: var(--text-muted); }
.header-search-btn {
    padding: 6px 16px;
    font-size: 13px;
    background: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
    border-radius: 0 20px 20px 0;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
    font-family: inherit;
}
.header-search-btn:hover { background: var(--primary-hover); }

@media (max-width: 768px) {
    .header-search { display: none; }
}

/* ── Main ── */
.main { min-height: calc(100vh - var(--header-height) - 60px); }

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 20px 0;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

/* ── Hero ── */
.hero {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}
.hero h1 { font-size: 36px; margin-bottom: 12px; }
.hero-desc { font-size: 18px; opacity: 0.9; }

/* ── Product Grid ── */
.product-grid { padding: 24px 0; }
.product-grid h2 { margin-bottom: 16px; font-size: 22px; }
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    transition: box-shadow 0.2s, transform 0.2s;
    display: block;
    color: var(--text) !important;
}
.product-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transform: translateY(-2px);
    text-decoration: none;
}
.product-icon { font-size: 28px; margin-bottom: 8px; }
.product-card h3 { font-size: 16px; margin-bottom: 4px; }
.product-card p { color: var(--text-muted); font-size: 13px; }

/* ── Doc Layout ── */
.doc-layout {
    display: flex;
    min-height: calc(100vh - var(--header-height) - 60px);
}

.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    padding: 20px 0;
}
.sidebar-header {
    padding: 0 20px 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}
.sidebar-header h2 { font-size: 16px; }

.sidebar-nav { padding: 0 12px; }

.catalog-list { list-style: none; }
.catalog-item { margin-bottom: 4px; }
.catalog-name {
    display: block;
    padding: 6px 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: default;
}
.article-list { list-style: none; margin-bottom: 4px; }
.article-link {
    display: block;
    padding: 6px 8px 6px 20px;
    font-size: 14px;
    color: var(--text);
    border-radius: 4px;
}
.article-link:hover {
    background: #f1f5f9;
    text-decoration: none;
}
.article-link.active {
    background: #eff6ff;
    color: var(--primary);
    font-weight: 600;
}

.doc-content {
    flex: 1;
    padding: 40px 48px;
    max-width: 900px;
}
.doc-content h1 { font-size: 28px; margin-bottom: 12px; }
.doc-meta {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.empty-doc {
    text-align: center;
    padding: 80px 0;
    color: var(--text-muted);
}

/* ── Markdown Body ── */
.markdown-body { line-height: 1.8; }
.markdown-body h1 { font-size: 26px; margin: 28px 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.markdown-body h2 { font-size: 22px; margin: 24px 0 12px; }
.markdown-body h3 { font-size: 18px; margin: 20px 0 10px; }
.markdown-body h4 { font-size: 16px; margin: 16px 0 8px; }
.markdown-body p { margin-bottom: 12px; }
.markdown-body ul, .markdown-body ol { margin: 8px 0; padding-left: 24px; }
.markdown-body li { margin-bottom: 4px; }
.markdown-body pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.5;
    margin: 16px 0;
}
.markdown-body code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
}
.markdown-body pre code { background: none; padding: 0; }
/* Quill 富文本内容对齐支持 */
.markdown-body .ql-align-center { text-align: center; }
.markdown-body .ql-align-right { text-align: right; }
.markdown-body .ql-align-justify { text-align: justify; }
.markdown-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 8px 16px;
    margin: 16px 0;
    background: #f8fafc;
    color: var(--text-muted);
}
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    table-layout: fixed;
}
.markdown-body th, .markdown-body td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
    overflow: hidden;
}
.markdown-body th { background: #f8fafc; font-weight: 600; }
.markdown-body img { max-width: 100%; border-radius: 4px; }

/* ── Login ── */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}
.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
    width: 360px;
}
.login-box h1 { text-align: center; margin-bottom: 24px; font-size: 22px; }

/* ── Forms ── */
.form { max-width: 720px; }
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
}
.form-group small { display: block; color: var(--text-muted); font-size: 12px; margin-top: 4px; }
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-group textarea.code-editor {
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    font-size: 13px;
    line-height: 1.5;
}
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* ── Buttons ── */
.btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    color: var(--text);
    text-decoration: none !important;
}
.btn:hover { background: #f1f5f9; }
.btn-primary {
    background: var(--primary);
    color: #fff !important;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff !important; border-color: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-block { width: 100%; text-align: center; }
.btn-sm {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    cursor: pointer;
    text-decoration: none !important;
    color: var(--text);
}
.btn-sm:hover { background: #f1f5f9; }

/* ── Table ── */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.table th, .table td {
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.table th { background: #f8fafc; font-weight: 600; }
.table .actions { white-space: nowrap; display: flex; gap: 6px; }
.table .empty { text-align: center; padding: 40px; color: var(--text-muted); }

/* ── Dashboard ── */
.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 24px 0 16px;
}
.page-toolbar h1 { font-size: 22px; margin: 0; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
}
.stat-number { font-size: 36px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* ── Alert ── */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* ── Error Page ── */
.error-page { text-align: center; padding: 80px 0; }
.error-page h1 { font-size: 64px; color: var(--primary); }
.error-page p { font-size: 18px; color: var(--text-muted); margin-bottom: 24px; }

/* ── Empty ── */
.empty { text-align: center; padding: 40px; color: var(--text-muted); }

/* ── Responsive ── */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .doc-content { padding: 24px; }
    .grid { grid-template-columns: 1fr; }
}