/* CampusLife 蓝白风格 */
:root{
  --bg:#f6f8fb;
  --bg-card:#ffffff;
  --bg-hover:#f0f4fa;
  --fg:#17233d;
  --fg-dim:#5b6b85;
  --fg-mute:#93a1b5;
  --line:#e6eaf1;
  --line-strong:#d4dae5;
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#0ea5e9;
  --green:#16a34a;
  --amber:#d97706;
  --red:#dc2626;
  --grad:linear-gradient(135deg,#2563eb,#0ea5e9);
  --radius:14px;
  --shadow:0 1px 3px rgba(23,35,61,.07),0 1px 2px rgba(23,35,61,.04);
  --shadow-lg:0 10px 30px rgba(23,35,61,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:-apple-system,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15px;line-height:1.65;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}

::selection{background:rgba(37,99,235,.18)}

/* ===== 布局 ===== */
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* ===== 顶部栏 ===== */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--fg)}
.brand-logo{
  width:30px;height:30px;border-radius:8px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px;
}
.brand small{color:var(--fg-mute);font-weight:400;font-size:12px;margin-left:2px}

.topnav{display:flex;gap:4px}
.topnav a{
  padding:7px 14px;border-radius:8px;font-size:14px;color:var(--fg-dim);
  transition:color .15s,background .15s;
}
.topnav a:hover{color:var(--fg);background:rgba(37,99,235,.06)}
.topnav a.active{color:var(--blue);background:rgba(37,99,235,.08)}

.topbar-user{display:flex;align-items:center;gap:12px}
@media (max-width:720px){
  .topnav{display:none}
  .topbar-inner{height:52px}
}

/* ===== 用户胶囊 ===== */
.user-pill{
  display:flex;align-items:center;gap:10px;
  padding:5px 12px 5px 5px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg-card);
  font-size:13px;transition:border-color .15s;
}
.user-pill:hover{border-color:var(--line-strong)}
.user-pill .avatar{
  width:26px;height:26px;border-radius:50%;background:var(--grad);
  display:grid;place-items:center;font-weight:700;font-size:12px;color:#fff;
}
.user-pill .meta{display:flex;flex-direction:column;line-height:1.25}
.user-pill .name{font-weight:600}
.user-pill .sub{font-size:11px;color:var(--fg-mute)}
.user-pill .balance{font-size:13px;color:var(--blue);font-variant-numeric:tabular-nums}

/* ===== 身份徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 9px;border-radius:999px;font-size:11px;font-weight:600;letter-spacing:.03em;
}
.badge.vip{color:#92400e;background:linear-gradient(135deg,#fde68a,#fbbf24)}
.badge.std{color:var(--fg-dim);background:#eef1f6}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:10px;font-size:14px;font-weight:600;
  transition:transform .12s,box-shadow .15s,background .15s,border-color .15s,color .15s;
  white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep);box-shadow:0 6px 20px rgba(37,99,235,.28)}
.btn-outline{border:1px solid var(--line-strong);color:var(--fg);background:var(--bg-card)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:8px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;pointer-events:none}

/* ===== 卡片 ===== */
.card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
a.card:hover,.card.hoverable:hover{
  border-color:rgba(37,99,235,.35);
  box-shadow:var(--shadow-lg);
  transform:translateY(-2px);
}
.card-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 22px;border-bottom:1px solid var(--line);
}
.card-head h3{font-size:15px;font-weight:600}
.card-head .sub{font-size:12px;color:var(--fg-mute)}
.card-body{padding:22px}

/* ===== 状态点 ===== */
.dot-ok,.dot-warn{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px;vertical-align:1px}
.dot-ok{background:var(--green);box-shadow:0 0 8px rgba(22,163,74,.5)}
.dot-warn{background:var(--amber)}

/* ===== 表单 ===== */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--fg-dim);margin-bottom:7px}
.field input,.field select{
  width:100%;padding:11px 14px;border-radius:10px;
  background:#fff;border:1px solid var(--line-strong);
  outline:none;transition:border-color .15s,box-shadow .15s;
}
.field input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.field input::placeholder{color:var(--fg-mute)}
.field .hint{font-size:12px;color:var(--fg-mute);margin-top:6px}

/* ===== 首页 ===== */
.hero{padding:72px 0 48px;text-align:center}
.hero h1{font-size:clamp(28px,4.5vw,44px);font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--fg)}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--fg-dim);margin-top:14px;font-size:16px}
.hero-actions{margin-top:28px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.mods{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;
  padding-bottom:72px;
}
.mod-card{display:block;padding:26px;position:relative}
.mod-card .ico{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;margin-bottom:16px;
}
.mod-card .ico svg{width:22px;height:22px}
.ico.cyan{background:rgba(37,99,235,.10);color:var(--blue)}
.ico.violet{background:rgba(14,165,233,.10);color:var(--cyan)}
.mod-card h2{font-size:19px;font-weight:700;margin-bottom:4px}
.mod-card .zh{font-size:13px;color:var(--fg-mute);margin-bottom:12px}
.mod-card p{font-size:13.5px;color:var(--fg-dim);line-height:1.7;margin-bottom:16px}
.mod-card .go{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--blue);
}
.mod-card .go .arr{transition:transform .15s}
.mod-card:hover .go .arr{transform:translateX(3px)}
.mod-card .tagline{position:absolute;top:22px;right:22px}

/* ===== 数据格 ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:22px}
.stat{
  background:var(--bg-card);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;box-shadow:var(--shadow);
}
.stat .label{font-size:12px;color:var(--fg-mute);margin-bottom:6px}
.stat .value{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;color:var(--fg)}
.stat .value.cyan{color:var(--blue)}
.stat .value .unit{font-size:13px;color:var(--fg-mute);font-weight:400;margin-left:2px}
.stat .sub{font-size:12px;color:var(--fg-mute);margin-top:5px}

/* ===== 列表行 ===== */
.rows{display:flex;flex-direction:column}
.row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 22px;border-bottom:1px solid var(--line);font-size:14px;
}
.row:last-child{border-bottom:0}
.row .k{color:var(--fg-dim)}
.row .v{font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:8px}

/* ===== 页签 ===== */
.tabs{
  display:flex;gap:4px;padding:4px;
  background:#e9edf4;border:1px solid var(--line);
  border-radius:11px;margin-bottom:24px;
}
.tabs button{
  flex:1;padding:9px;border-radius:8px;font-size:14px;color:var(--fg-dim);
  transition:background .15s,color .15s;
}
.tabs button.active{background:#fff;color:var(--blue);font-weight:600;box-shadow:var(--shadow)}
.tabs button:not(.active):hover{color:var(--fg)}

/* ===== Toast ===== */
.toast-wrap{position:fixed;bottom:24px;right:24px;z-index:9000;display:flex;flex-direction:column;gap:10px;max-width:320px}
.toast{
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:10px;font-size:14px;color:var(--fg);
  background:#fff;border:1px solid var(--line-strong);
  box-shadow:var(--shadow-lg);
  transform:translateX(120%);transition:transform .3s cubic-bezier(.2,.8,.2,1);
}
.toast.show{transform:translateX(0)}
.toast.ok{border-color:rgba(22,163,74,.45)}
.toast.err{border-color:rgba(220,38,38,.45)}
.toast .ico{flex-shrink:0;width:17px;height:17px}
.toast.ok .ico{color:var(--green)}
.toast.err .ico{color:var(--red)}
@media (max-width:600px){.toast-wrap{left:16px;right:16px;bottom:16px}}

/* ===== 页脚 ===== */
.footer{
  border-top:1px solid var(--line);
  padding:28px 0;text-align:center;
  font-size:12.5px;color:var(--fg-mute);
  background:#fff;
}

/* ===== 空态 ===== */
.empty{padding:40px 20px;text-align:center;color:var(--fg-mute);font-size:13.5px}

/* ===== 说明块 ===== */
.note{
  padding:14px 16px;border-radius:10px;font-size:13px;line-height:1.7;
  background:rgba(37,99,235,.05);border:1px solid rgba(37,99,235,.16);
  color:var(--fg-dim);
}
.note b{color:var(--fg)}
.note code{
  font-family:Consolas,monospace;font-size:12px;
  background:rgba(37,99,235,.08);padding:1px 6px;border-radius:4px;
}
.steps{counter-reset:s;list-style:none}
.steps li{
  counter-increment:s;position:relative;
  padding:0 0 16px 38px;font-size:13.5px;color:var(--fg-dim);line-height:1.7;
}
.steps li::before{
  content:counter(s);
  position:absolute;left:0;top:1px;
  width:24px;height:24px;border-radius:50%;
  background:rgba(37,99,235,.10);color:var(--blue);
  display:grid;place-items:center;font-size:12px;font-weight:700;
}
.steps li b{color:var(--fg)}

/* ===== 页面容器 ===== */
.page{padding:36px 0 64px}
.page-head{margin-bottom:26px}
.page-head h1{font-size:24px;font-weight:700}
.page-head p{color:var(--fg-dim);font-size:14px;margin-top:5px}

/* ===== 登录页 ===== */
.auth-body{
  min-height:100vh;display:grid;place-items:center;padding:24px;
  background:
    radial-gradient(50% 40% at 70% 20%,rgba(37,99,235,.07),transparent),
    radial-gradient(40% 35% at 25% 80%,rgba(14,165,233,.06),transparent),
    var(--bg);
}
.auth-box{width:100%;max-width:400px}
.auth-box .brand{justify-content:center;margin-bottom:26px}
.auth-title{text-align:center;margin-bottom:22px}
.auth-title h1{font-size:21px;font-weight:700}
.auth-title p{font-size:13px;color:var(--fg-mute);margin-top:4px}
.auth-foot{margin-top:18px;text-align:center;font-size:12px;color:var(--fg-mute)}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{
  text-align:left;font-weight:600;color:var(--fg-mute);font-size:12.5px;
  padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;
  background:#fafbfd;
}
.tbl td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tr:hover td{background:#f7f9fc}
.tbl .num{font-variant-numeric:tabular-nums}
.tbl .mini{font-size:12px;color:var(--fg-mute)}
.tbl input,.tbl select{
  padding:6px 10px;border-radius:7px;font-size:13px;
  background:#fff;border:1px solid var(--line-strong);outline:none;color:inherit;
}
.tbl input:focus{border-color:var(--blue)}

/* 状态徽章 */
.st{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;white-space:nowrap}
.st.run{color:var(--blue);background:rgba(37,99,235,.09)}
.st.done{color:var(--green);background:rgba(22,163,74,.09)}
.st.pause{color:var(--amber);background:rgba(217,119,6,.09)}
.st.fail{color:var(--red);background:rgba(220,38,38,.09)}
.st.off{color:var(--fg-mute);background:#eef1f6}

/* 小按钮 */
.btn-tiny{
  padding:4px 10px;font-size:12px;border-radius:6px;
  border:1px solid var(--line-strong);color:var(--fg-dim);background:#fff;
  transition:all .15s;white-space:nowrap;
}
.btn-tiny:hover{color:var(--blue);border-color:var(--blue)}
.btn-tiny.danger:hover{color:var(--red);border-color:var(--red)}

/* 工具栏 */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar .search{
  flex:1;min-width:200px;max-width:340px;
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:9px;
  background:#fff;border:1px solid var(--line-strong);
}
.toolbar .search input{
  flex:1;background:none;border:0;outline:none;font-size:13.5px;color:inherit;
}
.toolbar .spacer{flex:1}

/* 分页 */
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:14px;font-size:13px;color:var(--fg-mute)}
.pager button{
  padding:5px 12px;border-radius:7px;border:1px solid var(--line-strong);
  color:var(--fg-dim);font-size:13px;background:#fff;
}
.pager button:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}
.pager button:disabled{opacity:.4;cursor:default}

/* 弹窗 */
.modal-mask{
  position:fixed;inset:0;z-index:8000;
  background:rgba(15,23,42,.4);backdrop-filter:blur(3px);
  display:grid;place-items:center;padding:20px;
}
.modal{
  width:100%;max-width:520px;max-height:86vh;overflow-y:auto;
  background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:24px;
  box-shadow:0 30px 90px rgba(23,35,61,.25);
}
.modal h3{font-size:17px;margin-bottom:18px}
.modal .actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}

/* 侧栏布局(管理后台) */
.shell{display:grid;grid-template-columns:200px 1fr;min-height:calc(100vh - 60px)}
.sidenav{
  border-right:1px solid var(--line);padding:20px 12px;
  display:flex;flex-direction:column;gap:2px;
}
.sidenav a{
  display:flex;align-items:center;gap:10px;
  padding:9px 14px;border-radius:9px;font-size:14px;color:var(--fg-dim);
  transition:background .15s,color .15s;cursor:pointer;
}
.sidenav a:hover{color:var(--fg);background:rgba(37,99,235,.05)}
.sidenav a.active{color:var(--blue);background:rgba(37,99,235,.09)}
.sidenav .sep{margin:14px 10px 6px;font-size:11px;color:var(--fg-mute)}
.shell-main{padding:28px 32px;min-width:0}
@media (max-width:800px){
  .shell{grid-template-columns:1fr}
  .sidenav{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);padding:10px}
  .sidenav .sep{display:none}
  .shell-main{padding:20px 16px}
}

/* 管理端统计 */
.astats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:22px}

/* 选择课程块 */
.pick-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.pick{
  border:1px solid var(--line-strong);border-radius:11px;padding:13px 15px;
  cursor:pointer;transition:border-color .15s,background .15s;background:#fff;
}
.pick:hover{border-color:var(--blue)}
.pick.on{border-color:var(--blue);background:rgba(37,99,235,.05)}
.pick .nm{font-size:13.5px;font-weight:600;display:flex;align-items:center;gap:8px}
.pick .ck{
  width:16px;height:16px;border-radius:5px;border:1.5px solid #c3cbd9;
  display:grid;place-items:center;font-size:11px;color:transparent;flex-shrink:0;background:#fff;
}
.pick.on .ck{background:var(--blue);border-color:var(--blue);color:#fff}