* { box-sizing: border-box; }

/* 始终为滚动条预留位置，避免内容变高、滚动条突然出现时整页宽度跳动 */
html { scrollbar-gutter: stable; }

/* 明确撑满视口：防止某些环境下 .wrap 被收缩成"内容宽度"而显得很窄 */
html, body { width: 100%; min-width: 0; }

body {
    display: block;
    margin: 0;
    padding: 0;
    background: #f4f7f9;
    color: #333;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

.topbar {
    background: #2c3e50;
    color: #fff;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar .brand { font-size: 16px; font-weight: bold; letter-spacing: 1px; }
.topbar .nav a {
    color: #cfd8dc;
    text-decoration: none;
    margin-left: 18px;
    font-size: 14px;
}
.topbar .nav a:hover, .topbar .nav a.active { color: #fff; }

/* 内容区：撑满可用宽度，超过 1100px 才居中留白 */
.wrap { width: 100%; max-width: 1100px; margin: 0 auto; padding: 20px; }

.cards { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.card {
    background: #fff;
    border: 1px solid #e3e8ee;
    border-radius: 10px;
    padding: 14px 18px;
    min-width: 160px;
    flex: 1;
}
.card .num { font-size: 24px; font-weight: bold; color: #2c3e50; }
.card .label { font-size: 12px; color: #778; }

.panel {
    background: #fff;
    border: 1px solid #e3e8ee;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 18px;
    /* 宽表格在窄窗口里改为面板内部滚动，既不压扁表格，也不把整页撑宽 */
    overflow-x: auto;
}
.panel h2 { margin: 0 0 14px; font-size: 15px; font-weight: bold; }
.panel h3 { margin: 18px 0 10px; font-size: 14px; font-weight: bold; }

/* 表格：给一个最小宽度，列名不会因为窗口窄而被挤成"一列一字"；
   宽度不足时由外层 .panel 横向滚动，而不是压缩每一列 */
table { width: 100%; min-width: 860px; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 10px; border-bottom: 1px solid #eef1f4; text-align: left; white-space: nowrap; }
/* 备注/说明这类可能较长的列：允许换行，并限制宽度上限 */
td.wrapcell, th.wrapcell { white-space: normal; max-width: 260px; word-break: break-word; }
th { background: #fafbfc; color: #556; font-weight: bold; }
tr:hover td { background: #fafcff; }
td.mono, .mono { font-family: Consolas, "Courier New", monospace; }

.badge {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 10px;
    font-size: 12px;
    background: #eef1f4;
    color: #556;
}
.badge.ok { background: #e6f4ea; color: #1e7e34; }
.badge.warn { background: #fff4e5; color: #a15c00; }
.badge.bad { background: #fdeaea; color: #a32d2d; }

label { display: inline-block; min-width: 90px; color: #556; }
input[type=text], input[type=number], input[type=password], input[type=datetime-local], select {
    padding: 6px 8px;
    border: 1px solid #d5dbe0;
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    /* 窗口很窄时，写死在 style="" 里的宽度也不会溢出面板 */
    max-width: 100%;
}
input:focus, select:focus { outline: none; border-color: #3498db; }

.btn {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid #3498db;
    background: #3498db;
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    text-decoration: none;
    font-family: inherit;
}
.btn:hover { background: #2980b9; border-color: #2980b9; }
.btn.ghost { background: #fff; color: #3498db; }
.btn.ghost:hover { background: #eef6fd; }
.btn.danger { background: #fff; color: #a32d2d; border-color: #e0b4b4; }
.btn.danger:hover { background: #fdeaea; }
.btn.small { padding: 3px 9px; font-size: 12px; }

.form-row { margin-bottom: 10px; }
.form-row-inline { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { min-width: 0; font-size: 12px; color: #667; }

.msg {
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-size: 13px;
}
.msg.ok { background: #e6f4ea; color: #1e7e34; border: 1px solid #b7e0c4; }
.msg.err { background: #fdeaea; color: #a32d2d; border: 1px solid #f2c4c4; }
.msg.info { background: #e8f1fb; color: #185fa5; border: 1px solid #bcd8f2; }

/* 生成的快码：用只读文本框承载，宽度受控不会撑破布局，也方便全选复制 */
.codes-out {
    display: block;
    width: 100%;
    max-width: 100%;
    min-height: 56px;
    box-sizing: border-box;
    background: #fffdf3;
    border: 1px solid #f0e2b0;
    border-radius: 8px;
    padding: 10px 12px;
    font-family: Consolas, monospace;
    font-size: 13px;
    line-height: 1.8;
    color: #6b5900;
    white-space: pre-wrap;
    word-break: break-all;
    margin-top: 10px;
    resize: vertical;
}
.codes-out:focus { outline: none; border-color: #3498db; }

.pager { margin-top: 12px; font-size: 13px; color: #667; }
.pager a { color: #3498db; text-decoration: none; margin-right: 10px; }

.center-box {
    max-width: 420px;
    margin: 60px auto;
    background: #fff;
    border: 1px solid #e3e8ee;
    border-radius: 12px;
    padding: 28px;
}
.center-box h1 { font-size: 18px; margin: 0 0 18px; }
.center-box .field { margin-bottom: 14px; }
.center-box input { width: 100%; }

.hint { font-size: 12px; color: #889; margin-top: 8px; }

/* 窄窗口（半屏 / 笔记本分屏）下的紧凑排版 */
@media (max-width: 760px) {
    .wrap { padding: 12px; }
    .topbar { padding: 10px 14px; }
    .topbar .nav a { margin-left: 12px; }
    .panel { padding: 14px; }
    .card { min-width: 120px; padding: 12px 14px; }
    .card .num { font-size: 20px; }
}