/* tm.tmaa.com.cn 极简黑白风 */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --ink: #111;
    --paper: #fff;
    --line: #e5e5e5;
    --muted: #777;
    --hover: #f5f5f5;
}
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--paper); color: var(--ink); font-size: 14px; }
a { color: inherit; text-decoration: none; }
.mono { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 13px; }

/* 布局 */
.shell { display: flex; min-height: 100vh; }
.side { width: 200px; background: #000; color: #fff; display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; }
.brand { display: flex; align-items: center; gap: 10px; padding: 22px 18px; border-bottom: 1px solid #222; }
.brand-dot { width: 10px; height: 10px; background: #fff; border-radius: 50%; animation: pulse 2.4s ease-in-out infinite; flex-shrink: 0; }
@keyframes pulse { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255,255,255,.5); } 50% { opacity: .55; box-shadow: 0 0 0 6px rgba(255,255,255,0); } }
.brand-name { font-weight: 700; letter-spacing: 2px; }
.brand-sub { font-size: 10px; color: #888; letter-spacing: 1px; margin-top: 2px; }
.nav { flex: 1; padding: 12px 0; }
.nav a { display: block; padding: 12px 18px; color: #999; border-left: 3px solid transparent; transition: all .15s; }
.nav a:hover { color: #fff; background: #161616; }
.nav a.on { color: #fff; border-left-color: #fff; background: #161616; }
.side-foot { padding: 16px 18px; border-top: 1px solid #222; display: flex; justify-content: space-between; font-size: 12px; color: #888; }
.side-foot a { color: #fff; }
.main { flex: 1; margin-left: 200px; padding: 28px 32px; max-width: 1280px; }

/* 页头 */
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 2px solid var(--ink); }
.page-head h1 { font-size: 20px; letter-spacing: 1px; }
.head-actions { display: flex; gap: 8px; }

/* 按钮 */
.btn { display: inline-block; background: var(--ink); color: #fff; border: 1px solid var(--ink); padding: 8px 18px; font-size: 13px; cursor: pointer; letter-spacing: 1px; transition: all .15s; }
.btn:hover { background: #333; }
.btn.ghost { background: #fff; color: var(--ink); }
.btn.ghost:hover { background: var(--hover); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn.block { width: 100%; margin-top: 8px; padding: 12px; }

/* 提示 */
.flash { padding: 10px 14px; margin-bottom: 16px; border: 1px solid var(--ink); background: var(--hover); }
.flash.err { border-color: var(--ink); background: #111; color: #fff; }

/* 统计卡 */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.stat { border: 1px solid var(--ink); padding: 18px; transition: all .15s; }
.stat:hover { background: var(--ink); color: #fff; }
.stat-num { font-size: 26px; font-weight: 700; font-family: "SF Mono", Menlo, monospace; }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 4px; }
.stat:hover .stat-label { color: #bbb; }

/* 面板 */
.panel { border: 1px solid var(--line); padding: 18px; margin-bottom: 20px; }
.panel-title { font-weight: 700; margin-bottom: 14px; letter-spacing: 1px; border-left: 4px solid var(--ink); padding-left: 8px; }
.empty { color: var(--muted); padding: 16px 0; text-align: center; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th { text-align: left; font-size: 12px; color: var(--muted); border-bottom: 2px solid var(--ink); padding: 8px 10px; letter-spacing: 1px; }
.tbl td { border-bottom: 1px solid var(--line); padding: 10px; }
.tbl tbody tr[data-href] { cursor: pointer; }
.tbl tbody tr:hover { background: var(--hover); }
.row-danger td { background: #111; color: #fff; }
.row-danger .tag { border-color: #fff; color: #fff; }
.warn { font-weight: 700; }

/* 标签 */
.tag { display: inline-block; border: 1px solid var(--ink); padding: 1px 8px; font-size: 12px; }

/* 条形图 */
.bars { display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: flex; align-items: center; gap: 10px; }
.bar-label { width: 80px; font-size: 12px; text-align: right; }
.bar-track { flex: 1; height: 14px; background: var(--hover); }
.bar-fill { height: 100%; background: var(--ink); transition: width .4s; }
.bar-num { width: 40px; font-family: Menlo, monospace; font-size: 12px; }

/* 筛选 */
.filter { display: flex; gap: 8px; margin-bottom: 14px; align-items: center; }
.filter-sum { margin-left: auto; font-family: Menlo, monospace; font-weight: 700; }

/* 表单 */
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid #ccc; font-size: 14px; font-family: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--ink); }
.form label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 4px; letter-spacing: 1px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.form-actions { margin-top: 18px; display: flex; gap: 8px; }
.inline-form { display: inline; }
.hint { color: var(--muted); font-size: 13px; margin: 6px 0; }
.code { background: var(--hover); border: 1px solid var(--line); padding: 10px; font-family: Menlo, monospace; font-size: 12px; margin: 6px 0; white-space: pre-wrap; }

/* 客户详情 */
.kv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kv span { display: block; font-size: 11px; color: var(--muted); margin-bottom: 2px; }
.remark { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); color: #444; }
.follow-form textarea { margin-bottom: 8px; }
.follow-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.follow-bar label { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.follow-bar input { width: auto; }
.follow-item { border-top: 1px solid var(--line); padding: 10px 0; }
.follow-meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }

/* 分页 */
.pager { display: flex; gap: 6px; margin-top: 14px; }
.pager a { border: 1px solid var(--line); padding: 4px 10px; font-size: 12px; }
.pager a.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 登录页 */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: #000; }
.login-box { width: 360px; background: #fff; padding: 36px; }
.login-brand { font-family: Menlo, monospace; letter-spacing: 3px; font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.login-brand .brand-dot { background: #000; animation: pulse-dark 2.4s ease-in-out infinite; }
@keyframes pulse-dark { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,0,0,.4); } 50% { opacity: .5; box-shadow: 0 0 0 6px rgba(0,0,0,0); } }
.login-title { font-size: 20px; font-weight: 700; margin: 10px 0 20px; }
.login-box label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 4px; }

/* 移动端：侧栏变顶栏 */
@media (max-width: 768px) {
    .shell { flex-direction: column; }
    .side { position: static; width: 100%; flex-direction: row; align-items: center; flex-wrap: wrap; }
    .brand { border-bottom: none; padding: 12px 14px; }
    .nav { display: flex; flex: 1; padding: 0; overflow-x: auto; }
    .nav a { padding: 12px 10px; white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; font-size: 13px; }
    .nav a.on { border-bottom-color: #fff; background: none; }
    .side-foot { display: none; }
    .main { margin-left: 0; padding: 16px; }
    .stat-grid, .grid2, .kv { grid-template-columns: 1fr 1fr; }
}