:root {
    --bg: #f4f6fa;
    --card: #ffffff;
    --line: #e3e8f0;
    --text: #1f2733;
    --muted: #8a93a3;
    --primary: #2f6bff;
    --primary-d: #1f51d6;
    --warn: #f0883e;
    --sidebar: #1f2733;
    --sidebar-w: 200px;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }

/* 顶栏 */
.topbar {
    height: 52px;
    background: var(--sidebar);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}
.topbar .brand { font-weight: 600; }
.topbar .user { display: flex; align-items: center; gap: 12px; font-size: 13px; }

/* 侧边栏 */
.sidebar {
    position: fixed;
    top: 52px;
    left: 0;
    width: var(--sidebar-w);
    bottom: 0;
    background: var(--sidebar);
    padding-top: 10px;
}
.sidebar a {
    display: block;
    color: #c5cdda;
    padding: 12px 20px;
    font-size: 14px;
}
.sidebar a:hover { background: #2a3543; color: #fff; }
.sidebar a.active { background: var(--primary); color: #fff; }

/* 内容区 */
.content {
    margin-left: var(--sidebar-w);
    padding: 24px 28px;
    max-width: 1100px;
}
.page-title { font-size: 20px; margin: 0 0 18px; }

/* 卡片 */
.cards { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px 22px;
    min-width: 180px;
    flex: 1;
}
.card-num { font-size: 28px; font-weight: 700; color: var(--primary); }
.card-label { color: var(--muted); margin-top: 6px; font-size: 13px; }

/* 面板 */
.panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 20px;
}
.panel h3 { margin: 0 0 12px; font-size: 15px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 13px; }
.tbl th { color: var(--muted); font-weight: 600; background: #fafbfd; }
.tbl-sm th, .tbl-sm td { padding: 5px 8px; }
.empty { color: var(--muted); }

/* 接口卡片 */
.api-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .api-grid { grid-template-columns: 1fr; } }
.api-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 16px 18px;
}
.api-head { display: flex; align-items: center; gap: 10px; }
.api-path { font-family: monospace; font-size: 13px; }
.api-name { font-weight: 600; margin: 10px 0 6px; }
.api-summary { color: #445; font-size: 13px; line-height: 1.6; margin: 0 0 12px; }
.api-block { margin-bottom: 12px; }
.api-block-title { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.method {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
}
.method-GET { background: #2f9e44; }
.method-POST { background: #2f6bff; }
.code {
    background: #0f1726;
    color: #d6e2ff;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
}
.notes { font-size: 13px; color: #445; min-height: 20px; }

/* 按钮 */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text);
    font-size: 13px;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); color: #fff; }
.btn-warn { background: var(--warn); border-color: var(--warn); color: #fff; }
.btn-warn:hover { color: #fff; }

/* 表单 */
label { display: block; margin-bottom: 14px; font-size: 13px; color: #445; }
input, textarea {
    width: 100%;
    margin-top: 6px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
}
.edit-form { max-width: 640px; }
.actions { display: flex; gap: 10px; }

/* 提示 */
.flash { margin-bottom: 16px; }
.flash-item {
    background: #fff4e5;
    border: 1px solid #ffd8a8;
    color: #b5560a;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
}
.muted { color: var(--muted); }

/* 登录 */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 80vh; }
.login-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 32px 36px;
    width: 340px;
}
.login-card h2 { margin: 0 0 20px; text-align: center; }
.login-card .hint { color: var(--muted); font-size: 12px; margin-top: 14px; text-align: center; }

/* 设置 */
.key-box { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.key-box code { background: #0f1726; color: #d6e2ff; padding: 8px 12px; border-radius: 6px; font-size: 13px; }