/* === manual.css === */
/* 风格参考平台本身：深色左侧导航 + 浅色内容区 + 蓝色主色 */

:root {
    --c-bg: #f4f6fa;
    --c-card: #ffffff;
    --c-sidebar: #1f2a3a;
    --c-sidebar-hover: #2a374b;
    --c-sidebar-active: #2b85ff;
    --c-text: #2c3e50;
    --c-muted: #7a869a;
    --c-border: #e3e7ef;
    --c-primary: #2b85ff;
    --c-primary-dark: #1d6fe6;
    --c-warn: #fa8c16;
    --c-danger: #f5222d;
    --c-success: #52c41a;
    --c-tip-bg: #fffbe6;
    --c-tip-border: #ffe58f;
    --c-warn-bg: #fff1f0;
    --c-warn-border: #ffa39e;
    --c-info-bg: #e6f4ff;
    --c-info-border: #91caff;
    --shadow-card: 0 2px 8px rgba(20, 40, 80, 0.06);
    --radius: 6px;
    --sidebar-w: 240px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    color: var(--c-text);
    background: var(--c-bg);
    font-size: 14px;
    line-height: 1.7;
}

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

img { max-width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-card); }

/* 布局 */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    background: var(--c-sidebar);
    color: #cfd6e4;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    overflow-y: auto;
    padding: 20px 0;
    z-index: 10;
}
.sidebar .brand {
    padding: 0 20px 18px;
    border-bottom: 1px solid #2c384b;
    margin-bottom: 12px;
}
.sidebar .brand h1 {
    font-size: 16px;
    color: #fff;
    margin: 0 0 4px 0;
    font-weight: 600;
}
.sidebar .brand .sub {
    font-size: 12px;
    color: #8a96aa;
}
.sidebar .nav-group { margin-bottom: 4px; }
.sidebar .nav-label {
    padding: 8px 20px;
    color: #8a96aa;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.sidebar .nav a {
    display: block;
    color: #cfd6e4;
    padding: 8px 20px 8px 24px;
    border-left: 3px solid transparent;
    font-size: 13px;
}
.sidebar .nav a:hover {
    background: var(--c-sidebar-hover);
    text-decoration: none;
    color: #fff;
}
.sidebar .nav a.active {
    background: var(--c-sidebar-hover);
    color: #fff;
    border-left-color: var(--c-sidebar-active);
    font-weight: 500;
}
.sidebar .nav .placeholder { color: #6b7689; font-style: italic; }

/* 主区 */
.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-width: 0;
}
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--c-border);
    padding: 14px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.breadcrumb {
    color: var(--c-muted);
    font-size: 13px;
}
.breadcrumb a { color: var(--c-muted); }
.breadcrumb .sep { margin: 0 6px; color: #c4cbd6; }
.breadcrumb .current { color: var(--c-text); font-weight: 500; }
.topbar .status {
    font-size: 12px;
    color: var(--c-muted);
}
.topbar .status .badge {
    display: inline-block;
    background: var(--c-tip-bg);
    color: var(--c-warn);
    border: 1px solid var(--c-tip-border);
    border-radius: 10px;
    padding: 1px 8px;
    font-size: 11px;
    margin-left: 6px;
}

.content-wrap {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 32px 64px;
}
.content h1 {
    font-size: 26px;
    margin: 0 0 12px;
    color: #1a2a3d;
    border-bottom: 2px solid var(--c-primary);
    padding-bottom: 10px;
    display: inline-block;
}
.content .subtitle {
    color: var(--c-muted);
    font-size: 14px;
    margin-bottom: 24px;
}
.content h2 {
    font-size: 18px;
    margin: 32px 0 12px;
    color: #1a2a3d;
    padding-left: 10px;
    border-left: 4px solid var(--c-primary);
}
.content h3 {
    font-size: 15px;
    margin: 20px 0 8px;
    color: #2c3e50;
}
.content p { margin: 8px 0; }
.content ul, .content ol { padding-left: 22px; }
.content li { margin: 4px 0; }

/* 步骤条 */
.steps { counter-reset: step; padding: 0; list-style: none; }
.steps li {
    counter-increment: step;
    position: relative;
    padding: 10px 12px 10px 44px;
    margin: 8px 0;
    background: #fafbfd;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 12px; top: 50%;
    transform: translateY(-50%);
    width: 24px; height: 24px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-size: 12px;
    font-weight: 600;
}

/* 表格 */
table.fields {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    font-size: 13px;
}
table.fields th, table.fields td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--c-border);
    text-align: left;
    vertical-align: top;
}
table.fields th {
    background: #f0f3f8;
    color: #4a5566;
    font-weight: 600;
    width: 110px;
}
table.fields tr:last-child td { border-bottom: none; }
.req { color: var(--c-danger); font-weight: 700; margin-left: 2px; }

/* 提示框 */
.callout {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin: 16px 0;
    font-size: 13px;
    border-left: 4px solid;
}
.callout-tip { background: var(--c-tip-bg); border-color: var(--c-tip-border); }
.callout-warn { background: var(--c-warn-bg); border-color: var(--c-warn-border); }
.callout-info { background: var(--c-info-bg); border-color: var(--c-info-border); }
.callout b { color: #ad6800; }
.callout-warn b { color: #a8071a; }
.callout-info b { color: #0958d9; }

/* 截图框 */
.screenshot {
    background: #fff;
    padding: 8px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    margin: 12px 0;
    text-align: center;
}
.screenshot img { box-shadow: none; }
.screenshot .caption {
    color: var(--c-muted);
    font-size: 12px;
    margin-top: 6px;
    text-align: center;
}

/* 上一章/下一章 */
.pager {
    display: flex;
    justify-content: space-between;
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid var(--c-border);
}
.pager a {
    background: #fff;
    border: 1px solid var(--c-border);
    padding: 10px 16px;
    border-radius: var(--radius);
    color: var(--c-primary);
    font-size: 13px;
    max-width: 45%;
}
.pager a:hover { border-color: var(--c-primary); text-decoration: none; }
.pager .label { color: var(--c-muted); font-size: 11px; display: block; }

/* 主页/封面 */
.hero {
    background: linear-gradient(135deg, #1f2a3a 0%, #2b85ff 100%);
    color: #fff;
    padding: 60px 32px 40px;
    border-radius: 0 0 var(--radius) var(--radius);
    margin: -32px -32px 24px;
}
.hero h1 {
    font-size: 30px;
    margin: 0 0 8px;
    color: #fff;
    border: none;
    padding: 0;
    display: block;
}
.hero .sub { color: #c5d4e8; font-size: 15px; margin-bottom: 16px; }
.hero .meta { color: #8fa6c5; font-size: 12px; }

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin: 16px 0 24px;
}
.module-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 18px 16px;
    transition: all 0.2s;
    color: var(--c-text);
    display: block;
}
.module-card:hover {
    border-color: var(--c-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(43, 133, 255, 0.12);
    text-decoration: none;
}
.module-card .icon { font-size: 22px; }
.module-card .name { font-weight: 600; font-size: 15px; margin: 6px 0 4px; color: #1a2a3d; }
.module-card .desc { color: var(--c-muted); font-size: 12px; }
.module-card .count {
    margin-top: 8px;
    color: var(--c-primary);
    font-size: 12px;
}

.progress-bar {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin: 20px 0;
}
.progress-bar .bar {
    background: #ecf0f6;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 6px;
}
.progress-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, #2b85ff, #5fa8ff);
}

/* 响应式 */
@media (max-width: 800px) {
    .sidebar { position: static; width: 100%; height: auto; }
    .main { margin-left: 0; }
    .layout { flex-direction: column; }
}