/* phpStudy 后台设计系统：侧栏布局、卡片、表格、表单、徽章、按钮、Toast、
   深色模式。所有颜色走 CSS 变量；深色模式按系统偏好自动切换，也可手动切换
   （html[data-theme]）。 */
:root{
  --bg:#f2f2f7;--card:#fff;--card-2:#f7f7fa;--text:#1c1c1e;--sub:rgba(0,0,0,.58);--faint:rgba(0,0,0,.36);
  --line:rgba(0,0,0,.09);--line-2:rgba(0,0,0,.05);--hover:rgba(0,0,0,.035);
  --blue:#007aff;--blue-dark:#0062cc;--red:#ff3b30;--green:#34c759;--orange:#ff9500;--purple:#5856d6;
  --tint-blue:rgba(0,122,255,.12);--tint-green:rgba(52,199,89,.14);--tint-red:rgba(255,59,48,.14);--tint-orange:rgba(255,149,0,.16);--tint-gray:rgba(0,0,0,.07);
  --side:#1c1c1e;--side-text:rgba(255,255,255,.72);--side-on:#fff;--side-on-bg:rgba(255,255,255,.12);
  --shadow:0 1px 2px rgba(0,0,0,.04),0 6px 20px rgba(0,0,0,.05);--radius:12px;--input-bg:#fff;--code-bg:#1c1c1e;--code-text:#ebebf5
}
html[data-theme=dark],html:not([data-theme=light]) .dark-auto{color-scheme:dark}
@media (prefers-color-scheme:dark){html:not([data-theme=light]){
  --bg:#000;--card:#1c1c1e;--card-2:#2c2c2e;--text:#f2f2f7;--sub:rgba(255,255,255,.62);--faint:rgba(255,255,255,.38);
  --line:rgba(255,255,255,.1);--line-2:rgba(255,255,255,.06);--hover:rgba(255,255,255,.05);
  --blue:#0a84ff;--blue-dark:#409cff;--red:#ff453a;--green:#30d158;--orange:#ff9f0a;--purple:#5e5ce6;
  --tint-blue:rgba(10,132,255,.2);--tint-green:rgba(48,209,88,.18);--tint-red:rgba(255,69,58,.2);--tint-orange:rgba(255,159,10,.2);--tint-gray:rgba(255,255,255,.1);
  --side:#141416;--shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.35);--input-bg:#2c2c2e;--code-bg:#0e0e10;--code-text:#e5e5ea
}}
html[data-theme=dark]{
  --bg:#000;--card:#1c1c1e;--card-2:#2c2c2e;--text:#f2f2f7;--sub:rgba(255,255,255,.62);--faint:rgba(255,255,255,.38);
  --line:rgba(255,255,255,.1);--line-2:rgba(255,255,255,.06);--hover:rgba(255,255,255,.05);
  --blue:#0a84ff;--blue-dark:#409cff;--red:#ff453a;--green:#30d158;--orange:#ff9f0a;--purple:#5e5ce6;
  --tint-blue:rgba(10,132,255,.2);--tint-green:rgba(48,209,88,.18);--tint-red:rgba(255,69,58,.2);--tint-orange:rgba(255,159,10,.2);--tint-gray:rgba(255,255,255,.1);
  --side:#141416;--shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.35);--input-bg:#2c2c2e;--code-bg:#0e0e10;--code-text:#e5e5ea
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 -apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:22px;font-weight:600;margin:0;letter-spacing:-.01em}
h2{font-size:15px;font-weight:600;margin:0 0 12px}
h3{font-size:13px;font-weight:600;margin:0 0 8px;color:var(--sub)}
code{background:var(--tint-gray);padding:1px 6px;border-radius:5px;font:12px Consolas,"SF Mono",monospace}
pre{background:var(--code-bg);color:var(--code-text);padding:14px 16px;border-radius:10px;font:12px/1.55 Consolas,"SF Mono",monospace;white-space:pre-wrap;word-break:break-all;max-height:62vh;overflow:auto;margin:0}
.sub{color:var(--sub);font-size:12px}
.faint{color:var(--faint);font-size:12px}
.mono{font:12px Consolas,"SF Mono",monospace}
.nowrap{white-space:nowrap}
.right{text-align:right}
.mt{margin-top:16px}.mb{margin-bottom:16px}
svg.i{width:16px;height:16px;vertical-align:-3px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---- 布局 ---- */
.app{display:flex;min-height:100vh}
.side{width:224px;flex:none;background:var(--side);color:var(--side-text);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .brand{display:flex;align-items:center;gap:10px;padding:18px 20px 14px;color:#fff;font-weight:600;font-size:15px}
.side .brand .logo{width:28px;height:28px;border-radius:8px;background:var(--blue);display:grid;place-items:center;font-weight:700;color:#fff;font-size:15px}
.side .brand small{display:block;font-weight:400;font-size:11px;color:var(--side-text)}
.side nav{padding:6px 12px;flex:1;overflow:auto}
.side nav .group{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.35);padding:14px 10px 6px}
.side nav a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--side-text);font-size:13px}
.side nav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.side nav a.on{background:var(--side-on-bg);color:var(--side-on)}
.side nav a .count{margin-left:auto;background:var(--red);color:#fff;font-size:11px;padding:0 7px;border-radius:999px;line-height:18px}
.side .foot{padding:12px 16px;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:10px;font-size:12px}
.side .foot .avatar{width:28px;height:28px;border-radius:50%;background:var(--purple);display:grid;place-items:center;color:#fff;font-weight:600;flex:none}
.side .foot .who{flex:1;min-width:0}
.side .foot .who b{display:block;color:#fff;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side .foot a{color:var(--side-text)}
.side .foot a:hover{color:#fff}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:12px;padding:16px 28px 0}
.topbar .crumbs{color:var(--sub);font-size:12px}
.topbar .grow{flex:1}
.topbar .tools{display:flex;gap:8px;align-items:center}
.page{padding:18px 28px 40px;max-width:1240px;width:100%}
.page-head{display:flex;align-items:flex-end;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.page-head .desc{color:var(--sub);font-size:13px;margin-top:4px}
.page-head .grow{flex:1}
.page-head .acts{display:flex;gap:8px;align-items:center}
.icon-btn{background:transparent;border:0;color:var(--sub);width:32px;height:32px;border-radius:8px;cursor:pointer;display:grid;place-items:center}
.icon-btn:hover{background:var(--hover);color:var(--text)}

/* ---- 卡片 / 网格 ---- */
.card{background:var(--card);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);margin-bottom:16px}
.card.tight{padding:0;overflow:hidden}
.card.tight .card-head{padding:14px 20px;border-bottom:1px solid var(--line)}
details.retention summary{cursor:pointer;list-style:none;margin:0}
details.retention summary::-webkit-details-marker{display:none}
details.retention:not([open]) summary{border-bottom:0}
details.retention .sub b{color:var(--text);font-weight:600}
.retention-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ret{display:flex;flex-direction:column;gap:4px}
.ret .label{font-size:12px;color:var(--sub)}
.ret b{font-size:26px;font-weight:600;letter-spacing:-.02em}
.ret i{display:block;height:6px;border-radius:3px;background:var(--tint-gray);overflow:hidden}
.ret i s{display:block;height:100%;background:var(--blue);border-radius:3px}
.ret .faint{font-size:11px}
/* ---- 硬件 ---- */
.hw-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;padding:6px 20px 14px}
.hw-grid dl{margin:0;display:grid;grid-template-columns:64px 1fr;gap:10px 12px;align-content:start}
.hw-grid dt{color:var(--faint);font-size:11px;letter-spacing:.04em;text-transform:uppercase;padding-top:3px}
.hw-grid dd{margin:0;font-size:13px;min-width:0;overflow-wrap:anywhere}
.hw-grid .cell-sub{display:block;color:var(--sub);font-size:12px;margin-top:2px}
.hw-grid i.vol{display:inline-block;width:80px;height:6px;border-radius:3px;background:var(--tint-gray);vertical-align:middle;margin-left:6px;overflow:hidden}
.hw-grid i.vol s{display:block;height:100%;background:var(--blue);border-radius:3px}
.hw-grid i.vol s.bad{background:var(--red)}
.hw-siblings{padding:10px 20px;border-top:1px solid var(--line);font-size:12px;color:var(--sub);display:flex;gap:6px;align-items:center;flex-wrap:wrap}
@media (max-width:900px){.hw-grid{grid-template-columns:1fr}}
.grid.hw-cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.five{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.hw-grid.one{grid-template-columns:1fr}
.table.dense{table-layout:fixed}
.table.dense td{padding:6px 14px;font-size:12px}
.table.dense th{position:static}
.table td.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.app-cats{display:flex;gap:6px;flex-wrap:wrap;padding:10px 20px;border-bottom:1px solid var(--line)}
.sw-cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.sw-cat{padding:12px 14px;border:1px solid var(--line);border-radius:10px}
.sw-cat .head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.sw-cat .head b{font-size:20px;font-weight:600;margin-left:auto}
.sw-cat ul{list-style:none;margin:0;padding:0;font-size:12px;color:var(--sub)}
.sw-cat li{display:flex;justify-content:space-between;gap:8px;padding:2px 0}
.sw-cat li span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.env-strip{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:var(--sub);margin-top:12px}
.env-strip b{color:var(--text);font-weight:600}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.card-head h2{margin:0}
.card-head .grow{flex:1}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:16px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(380px,1fr))}
.grid .card{margin:0}
.stat{display:flex;flex-direction:column;gap:4px;min-height:92px}
.stat .label{color:var(--sub);font-size:12px;display:flex;align-items:center;gap:6px}
.stat b{font-size:28px;font-weight:600;letter-spacing:-.02em;line-height:1.1}
.stat .delta{font-size:12px;color:var(--sub)}
.stat .delta.up{color:var(--green)}.stat .delta.down{color:var(--red)}
.stat svg.spark{width:100%;height:34px;margin-top:auto}
.stat svg.spark .line{fill:none;stroke:var(--blue);stroke-width:2;stroke-linejoin:round}
.grid.kpis .stat{min-height:150px}
.grid.kpis .stat b{font-size:32px}
.grid.mini{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
.stat.mini{flex-direction:row;align-items:center;justify-content:space-between;min-height:0;padding:12px 18px;color:inherit}
.stat.mini b{font-size:20px}
.stat.mini b.warn{color:#a05e00}.stat.mini b.bad{color:var(--red)}
a.stat.mini:hover{text-decoration:none;box-shadow:0 2px 10px rgba(0,0,0,.08)}

/* ---- 表格 ---- */
.table{width:100%;border-collapse:collapse}
.table th{text-align:left;font-weight:500;font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--faint);padding:10px 14px;border-bottom:1px solid var(--line);white-space:nowrap;background:var(--card);position:sticky;top:0}
.table td{padding:11px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.table tbody tr:hover td{background:var(--hover)}
.table tr:last-child td{border-bottom:0}
.table .num{text-align:right;font-variant-numeric:tabular-nums}
.table th a{color:inherit}
.table th a.sorted{color:var(--blue)}
.table .row-acts{white-space:nowrap;text-align:right}
.table .row-acts .btn{padding:4px 10px;font-size:12px}
.table .cell-main{font-weight:500}
.table .cell-sub{display:block;color:var(--sub);font-size:12px;margin-top:1px}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar .grow{flex:1}
.toolbar input[type=search],.toolbar input[type=text]{width:240px}
.toolbar select{width:auto}
.pager{display:flex;align-items:center;gap:6px;padding:12px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--sub)}
.pager .grow{flex:1}
.pager a,.pager span.cur{display:inline-block;min-width:28px;padding:4px 8px;text-align:center;border-radius:6px;color:var(--text)}
.pager a:hover{background:var(--hover);text-decoration:none}
.pager span.cur{background:var(--blue);color:#fff}
.pager a.off{opacity:.35;pointer-events:none}
.empty{color:var(--faint);padding:38px 20px;text-align:center}
.empty svg.i{width:28px;height:28px;display:block;margin:0 auto 10px;stroke-width:1.5}

/* ---- 徽章 / 状态点 ---- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:500;background:var(--tint-gray);color:var(--sub);white-space:nowrap}
.badge.ok{background:var(--tint-green);color:#1f8a3a}.badge.warn{background:var(--tint-orange);color:#a05e00}.badge.err{background:var(--tint-red);color:#c8281e}.badge.info{background:var(--tint-blue);color:var(--blue-dark)}
html[data-theme=dark] .badge.ok,.dark .badge.ok{color:#5ee28a}html[data-theme=dark] .badge.warn{color:#ffbf5c}html[data-theme=dark] .badge.err{color:#ff7b73}
@media (prefers-color-scheme:dark){html:not([data-theme=light]) .badge.ok{color:#5ee28a}html:not([data-theme=light]) .badge.warn{color:#ffbf5c}html:not([data-theme=light]) .badge.err{color:#ff7b73}}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--faint);vertical-align:1px}
.dot.on{background:var(--green)}.dot.warn{background:var(--orange)}.dot.err{background:var(--red)}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:8px;border:0;background:var(--tint-gray);color:var(--text);font:inherit;font-size:13px;cursor:pointer;line-height:1.3;white-space:nowrap}
.btn:hover{text-decoration:none;filter:brightness(.96)}
.btn.primary{background:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue-dark);filter:none}
.btn.danger{background:var(--red);color:#fff}
.btn.ghost{background:transparent;color:var(--sub)}.btn.ghost:hover{color:var(--blue);background:var(--tint-blue);filter:none}
.btn.sm{padding:4px 10px;font-size:12px}
.btn[disabled]{opacity:.45;cursor:default}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.menu{position:relative;display:inline-block}
.menu summary{list-style:none;cursor:pointer}
.menu summary::-webkit-details-marker{display:none}
.menu .items{position:absolute;right:0;top:calc(100% + 4px);background:var(--card);border-radius:10px;box-shadow:var(--shadow),0 0 0 1px var(--line);min-width:150px;padding:6px;z-index:20}
.menu .items a,.menu .items button{display:block;width:100%;text-align:left;padding:7px 10px;border-radius:7px;color:var(--text);background:none;border:0;font:inherit;cursor:pointer}
.menu .items a:hover,.menu .items button:hover{background:var(--hover);text-decoration:none}
.menu .items .danger{color:var(--red)}
.menu .items hr{border:0;border-top:1px solid var(--line);margin:6px 0}

/* ---- 表单 ---- */
label{display:block;font-size:12px;color:var(--sub);margin:0 0 5px}
.field{margin-bottom:14px}
.field .hint{font-size:12px;color:var(--faint);margin-top:4px}
input[type=text],input[type=search],input[type=password],input[type=number],input[type=url],input[type=email],input[type=datetime-local],input[type=date],select,textarea{width:100%;padding:8px 11px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--input-bg);color:var(--text)}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px var(--tint-blue)}
textarea{min-height:120px;resize:vertical}
textarea.code{font:12px/1.5 Consolas,"SF Mono",monospace;min-height:200px}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0 18px}
.check{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);margin:8px 0}
.check input{width:16px;height:16px;accent-color:var(--blue)}
.actions{margin-top:18px;display:flex;gap:8px;justify-content:flex-end;align-items:center}
.actions .grow{flex:1}
.form-split{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:start}
@media (max-width:980px){.form-split{grid-template-columns:1fr}}
.seg{display:inline-flex;background:var(--tint-gray);border-radius:999px;padding:3px}
.seg a,.seg span{padding:4px 12px;border-radius:999px;font-size:12px;color:var(--text)}
.seg a.on,.seg span.on{background:var(--blue);color:#fff}
.seg a:hover{text-decoration:none}

/* ---- 上传区 ---- */
.drop{border:1.5px dashed var(--line);border-radius:10px;padding:26px;text-align:center;color:var(--sub);transition:.15s;background:var(--card-2)}
.drop.over{border-color:var(--blue);background:var(--tint-blue);color:var(--blue)}
.drop input{display:none}
.progress{height:6px;background:var(--tint-gray);border-radius:3px;overflow:hidden;margin-top:12px}
.progress i{display:block;height:100%;background:var(--blue);width:0;transition:width .15s}

/* ---- 图表（SVG） ---- */
.chart{width:100%;height:auto;display:block}
.chart .grid-line{stroke:var(--line);stroke-width:1}
.chart .axis{fill:var(--faint);font-size:10px}
.chart .line{fill:none;stroke:var(--blue);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.chart .area{fill:var(--blue);opacity:.08}
.chart .pt{fill:var(--blue)}
.chart .bar{fill:var(--blue);opacity:.85}
.chart .bar:hover{opacity:1}
.bars{display:flex;flex-direction:column;gap:7px}
.bar-row{display:grid;grid-template-columns:150px 1fr 44px;align-items:center;gap:10px;font-size:12px}
.bar-row span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-row i{display:block;height:8px;border-radius:4px;background:var(--blue)}
.bar-row .num{text-align:right;color:var(--sub);font-variant-numeric:tabular-nums}
.legend{display:flex;gap:14px;font-size:12px;color:var(--sub)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}

/* ---- 时间线 ---- */
.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 14px 14px}
.timeline li::before{content:"";position:absolute;left:-23px;top:5px;width:8px;height:8px;border-radius:50%;background:var(--faint)}
.timeline li.error::before{background:var(--red)}.timeline li.install::before{background:var(--green)}.timeline li.service_start::before{background:var(--blue)}
.timeline .when{font-size:11px;color:var(--faint)}
.timeline pre{margin-top:6px;max-height:160px;font-size:11px}

/* ---- Toast / 提示 ---- */
.toasts{position:fixed;right:20px;bottom:20px;display:flex;flex-direction:column;gap:8px;z-index:50}
.toast{background:var(--card);color:var(--text);padding:11px 14px;border-radius:10px;box-shadow:var(--shadow),0 0 0 1px var(--line);display:flex;align-items:center;gap:9px;min-width:240px;animation:toast-in .2s ease-out}
.toast.ok{border-left:4px solid var(--green)}.toast.err{border-left:4px solid var(--red)}
@keyframes toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.notice-bar{display:flex;gap:10px;align-items:center;padding:10px 14px;border-radius:10px;background:var(--tint-orange);color:#7a4600;font-size:13px;margin-bottom:16px}
.dialog{position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;place-items:center;z-index:60}
.dialog.open{display:grid}
.dialog .box{background:var(--card);border-radius:14px;padding:22px 24px;width:420px;max-width:92vw;box-shadow:var(--shadow)}
.dialog .box h2{margin-bottom:6px}
.dialog .box p{color:var(--sub);margin:0 0 18px}

/* ---- 登录页 ---- */
.auth{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth .card{width:380px;max-width:100%;padding:28px}
.auth .brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-weight:600;font-size:16px}
.auth .brand .logo{width:34px;height:34px;border-radius:9px;background:var(--blue);display:grid;place-items:center;color:#fff;font-weight:700}
.auth .error{background:var(--tint-red);color:#c8281e;padding:9px 12px;border-radius:8px;font-size:13px;margin-bottom:12px}

/* ---- 响应式 ---- */
@media (max-width:860px){
  .app{flex-direction:column}
  .side{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;align-items:center}
  .side nav{display:flex;gap:2px;padding:4px 8px;overflow-x:auto;flex:1}
  .side nav .group{display:none}
  .side nav a{white-space:nowrap}
  .side .foot{border:0;padding:8px 12px}
  .topbar,.page{padding-left:16px;padding-right:16px}
  .form-split{grid-template-columns:1fr}
  .bar-row{grid-template-columns:100px 1fr 40px}
}
@media print{.side,.topbar,.toasts{display:none}.page{padding:0}.card{box-shadow:none;border:1px solid #ddd}}