/* ============ 蓝白设计系统（管理端 / 用户端） ============ */
:root{
  /* 主色：默认管理端（蓝） */
  --accent:#3b82f6;
  --accent-strong:#2563eb;
  --accent-soft:rgba(59,130,246,.12);
  --accent-text:#2563eb;
  /* 文字 */
  --text:#1f2a3a;
  --muted:#5b6b82;
  /* 表面 */
  --card-bg:#ffffff;
  --card-border:#e3e9f2;
  --card-shadow:0 8px 26px rgba(31,42,58,.08);
  --field-bg:#f5f8fc;
  --field-border:#d7e0ec;
  --field-text:#1f2a3a;
  --border:#e3e9f2;
  --border-strong:#cdd7e6;
  /* 状态色 */
  --danger:#ef4444;
  --danger-strong:#dc2626;
  --ok:#10b981;
  /* 兼容旧页面里残留的 --primary 引用 */
  --primary:var(--accent);
  --primary-dark:var(--accent-strong);
  --primary-soft:var(--accent-soft);
  /* 圆角 / 字体 */
  --radius:18px;
  --font-body:'Barlow',-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-head:'Instrument Serif',Georgia,"Songti SC",serif;
}
/* 用户端主色：清爽青 */
body.theme-user{
  --accent:#06b6d4;
  --accent-strong:#0891b2;
  --accent-soft:rgba(6,182,212,.12);
  --accent-text:#0891b2;
  --primary:var(--accent);
  --primary-dark:var(--accent-strong);
  --primary-soft:var(--accent-soft);
  /* 查看区禁止选中文本（输入框单独放开，见下方规则） */
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  user-select:none;
}
body.theme-user input,
body.theme-user select,
body.theme-user textarea{
  -webkit-user-select:text;
  -moz-user-select:text;
  -ms-user-select:text;
  user-select:text;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-body);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  background:#eef3f9;
  background-image:
    radial-gradient(40% 40% at 12% 10%, rgba(59,130,246,.10), transparent 60%),
    radial-gradient(42% 42% at 88% 12%, rgba(6,182,212,.08), transparent 60%),
    radial-gradient(46% 46% at 80% 92%, rgba(139,92,246,.07), transparent 60%),
    radial-gradient(40% 40% at 16% 90%, rgba(16,185,129,.06), transparent 60%);
  background-attachment:fixed;
  min-height:100vh;
  position:relative;
}
a{color:var(--accent);text-decoration:none;}

/* ============ 顶栏 ============ */
header{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--border);
  color:var(--text);
  padding:13px 20px;
  display:flex;justify-content:space-between;align-items:center;
  position:sticky;top:0;z-index:50;
  box-shadow:0 2px 10px rgba(31,42,58,.05);
}
header h1{font-size:18px;margin:0;font-weight:600;letter-spacing:.3px;color:var(--text);}
.head-user{font-size:13px;display:flex;align-items:center;gap:10px;}
.head-user .who{opacity:.85;}

/* ============ 容器 ============ */
.container{max-width:880px;margin:26px auto;padding:0 16px 48px;}
.container.narrow{max-width:500px;}

/* ============ 卡片 ============ */
.card{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius);
  box-shadow:var(--card-shadow);
  padding:24px;
  margin-bottom:18px;
  position:relative;
  overflow:hidden;
}
.card > *{position:relative;z-index:1;}
.card h2{margin:0 0 16px;font-size:16px;color:var(--accent-text);display:flex;align-items:center;gap:9px;font-weight:600;}
.card h2 .step{background:var(--accent-soft);color:var(--accent-text);border-radius:9px;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;}

/* ============ 表单 ============ */
.row{display:flex;gap:14px;}
.row > div{flex:1;min-width:0;}
label{display:block;font-size:14px;margin:14px 0 6px;color:#3a4a5e;font-weight:500;}
input,select{
  width:100%;padding:11px 13px;border:1px solid var(--field-border);border-radius:11px;
  font-size:15px;background:var(--field-bg);color:var(--field-text);
  transition:border-color .15s,box-shadow .15s,background .15s;
}
input::placeholder,select::placeholder{color:#9aa6b8;}
input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff;}
.field{position:relative;}
.pwd-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);cursor:pointer;font-size:13px;user-select:none;}
.pwd-toggle:hover{color:var(--text);}

/* ============ 按钮 ============ */
button{
  background:linear-gradient(135deg,var(--accent),var(--accent-strong));
  color:#fff;border:none;padding:11px 20px;border-radius:11px;
  font-size:14px;font-weight:600;cursor:pointer;margin-top:14px;
  transition:background .15s,transform .06s,box-shadow .15s;
  box-shadow:0 8px 20px rgba(37,99,235,.28);
}
button:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(37,99,235,.36);}
button:active{transform:translateY(1px);}
button:disabled{background:#c3ccd9;color:#fff;box-shadow:none;cursor:not-allowed;transform:none;}
button.ghost{
  background:#fff;color:var(--text);
  border:1px solid var(--border);box-shadow:none;
}
button.ghost:hover{background:#f1f5fb;border-color:var(--border-strong);transform:translateY(-1px);}
button.ghost.danger-text{color:var(--danger-strong);}
button.ghost.danger-text:hover{color:#fff;background:linear-gradient(135deg,var(--danger),var(--danger-strong));border-color:transparent;box-shadow:0 8px 20px rgba(220,38,38,.26);}
button.danger{background:linear-gradient(135deg,var(--danger),var(--danger-strong));box-shadow:0 8px 20px rgba(220,38,38,.26);}
button.danger:hover{box-shadow:0 12px 26px rgba(220,38,38,.34);}
button.block{width:100%;}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;}
.btn-row button{margin-top:14px;}

/* ============ 表格 ============ */
table{width:100%;border-collapse:collapse;margin-top:6px;font-size:14px;}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);}
th{color:var(--muted);font-weight:600;font-size:13px;}
tr:last-child td{border-bottom:none;}
.pill{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;background:var(--accent-soft);color:var(--accent-text);font-weight:500;border:1px solid var(--border);}
.pill.none{background:#f1f5fb;color:var(--muted);border-color:var(--border);}
.pill.src{background:#f1f5fb;color:var(--muted);border-color:var(--border);}

/* ============ 用户端：手机通讯录样式（紧凑横向排列） ============ */
.contact{display:flex;align-items:center;gap:20px;padding:14px 10px;border-bottom:1px solid var(--border);}
.contact:last-child{border-bottom:none;}
.contact:hover{background:rgba(6,182,212,.04);}
/* 三列：批次 / 姓名+电话 / 状态 */
.c-col-batch{flex:none;min-width:78px;text-align:center;}
.c-batch-tag{display:inline-block;font-size:12px;color:#fff;background:var(--accent);padding:3px 9px;border-radius:999px;font-weight:600;}
.c-col-info{flex:1;min-width:0;display:flex;align-items:center;gap:12px;}
.c-name-text{font-weight:600;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text);width:76px;flex:none;}
.c-phone-text{color:var(--accent-text);font-weight:700;letter-spacing:.6px;font-size:18px;white-space:nowrap;font-family:ui-monospace,Menlo,Consolas,monospace;flex:1;}
.c-phone-text.copied{color:var(--ok);}
.c-col-action{flex:none;min-width:96px;text-align:center;}
.view-btn{background:var(--accent-soft);color:var(--accent-text);border:1px solid var(--accent-soft);padding:6px 14px;margin:0;font-size:13px;font-weight:600;border-radius:9px;box-shadow:none;display:inline-block;}
.view-btn:hover{background:rgba(59,130,246,.18);transform:none;}
.viewed-badge{font-size:14px;color:var(--ok);font-weight:700;line-height:1.4;display:inline-flex;align-items:center;justify-content:center;min-width:86px;}
.viewed-badge .exp{color:var(--muted);font-weight:500;font-size:12px;margin-left:3px;}

/* 翻页条 */
.pager{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:12px;flex-wrap:wrap;}
.pager .info{font-size:13px;color:var(--muted);}
.pager .nav{display:flex;gap:8px;}

/* 分类 Tab */
.tabs{display:flex;gap:8px;margin:0 0 14px;}
.tab{background:#f1f5fb;color:var(--muted);border:1px solid var(--border);padding:8px 16px;margin-top:0;font-weight:500;font-size:13px;}
.tab:hover{background:#e9eff7;}
.tab.active{background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(37,99,235,.25);}
.tab.active:hover{background:linear-gradient(135deg,var(--accent),var(--accent-strong));}
.tab .badge{display:inline-block;min-width:18px;padding:0 5px;margin-left:4px;border-radius:999px;background:rgba(31,42,58,.10);color:var(--text);font-size:11px;font-weight:700;}
.tab.active .badge{background:rgba(255,255,255,.25);color:#fff;}

/* 防复制提示条 */
.guard-note{font-size:12px;color:var(--muted);background:#f1f5fb;border:1px dashed var(--border);border-radius:11px;padding:9px 12px;margin:0 0 14px;display:flex;align-items:center;gap:6px;}

/* 统计条 */
.stat{font-size:13px;color:var(--muted);margin-bottom:6px;background:#f1f5fb;border:1px solid var(--border);border-radius:11px;padding:10px 14px;}

/* 空状态 */
.empty{text-align:center;color:var(--muted);padding:42px 20px;}
.empty .ico{font-size:40px;margin-bottom:10px;opacity:.6;}
.empty .tip{font-size:13px;margin-top:6px;}

/* ============ Toast ============ */
.toast-wrap{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;}
.toast{padding:11px 18px;border-radius:11px;color:#fff;font-size:14px;box-shadow:0 10px 28px rgba(0,0,0,.22);animation:toastIn .22s ease;max-width:90vw;background:rgba(31,42,58,.94);border:1px solid rgba(255,255,255,.12);}
.toast.ok{background:rgba(16,120,90,.95);}
.toast.err{background:rgba(170,40,40,.95);}
.toast.info{background:rgba(40,52,74,.95);}
@keyframes toastIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}

/* ============ 确认弹层 / 弹窗 ============ */
.mask{position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9998;animation:fadeIn .15s;}
.modal{
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;padding:24px;max-width:340px;width:90%;
  box-shadow:0 24px 60px rgba(31,42,58,.25);
  position:relative;overflow:hidden;color:var(--text);
}
.modal h3{margin:0 0 8px;font-size:16px;color:var(--text);}
.modal p{margin:0 0 20px;font-size:14px;color:var(--muted);}
.modal .btn-row{justify-content:flex-end;}
/* 改密码弹层 */
.modal.pwd-modal{max-width:370px;width:92%;}
.modal.pwd-modal h3{margin-bottom:2px;}
.modal.pwd-modal .hint{font-size:12px;color:var(--muted);margin:2px 0 6px;}
.modal.pwd-modal label{margin-top:12px;}
.modal.pwd-modal .err{color:var(--danger);font-size:12px;min-height:16px;margin:8px 0 0;}
.modal.pwd-modal .btn-row{margin-top:4px;}
/* 批量创建用户弹层 */
.modal.bulk-modal{max-width:480px;width:94%;}
.modal.bulk-modal h3{margin-bottom:2px;}
.modal.bulk-modal .hint{font-size:12px;color:var(--muted);margin:2px 0 10px;line-height:1.6;}
.modal.bulk-modal textarea{width:100%;min-height:150px;resize:vertical;font-size:13px;line-height:1.7;padding:11px 13px;border:1px solid var(--field-border);border-radius:11px;color:var(--field-text);background:var(--field-bg);font-family:ui-monospace,Menlo,Consolas,monospace;}
.modal.bulk-modal textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff;}
.modal.bulk-modal .err{color:var(--danger);font-size:12px;min-height:16px;margin:8px 0 0;}
.bulk-result{margin-top:12px;font-size:13px;background:var(--field-bg);border:1px solid var(--border);border-radius:11px;padding:12px 14px;line-height:1.7;color:var(--text);}
.bulk-result .ok-line{color:var(--ok);font-weight:600;margin-bottom:6px;}
.bulk-result .skip-line{color:var(--muted);margin-top:6px;}
.bulk-result .err-line{color:var(--danger);margin-top:6px;}
.bulk-result .kv{display:flex;flex-direction:column;gap:5px;margin-top:4px;}
.bulk-result .kv>div{display:flex;justify-content:space-between;gap:12px;background:var(--field-bg);border:1px solid var(--border);border-radius:8px;padding:6px 10px;}
.bulk-result .kv .k{font-weight:600;color:var(--text);}
.bulk-result .kv .v{color:var(--accent-text);font-family:ui-monospace,Menlo,Consolas,monospace;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}

/* ============ 加载动画 ============ */
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.55);border-top-color:#fff;border-radius:50%;display:inline-block;vertical-align:-3px;margin-right:7px;animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

.hidden{display:none!important;}

/* ============ 响应式 ============ */
@media (max-width:600px){
  .container{margin:16px auto;padding:0 12px 36px;}
  .card{padding:18px 16px;}
  .row{flex-direction:column;gap:0;}
  header h1{font-size:17px;}
  .pager{font-size:13px;}
  .pager .nav button{padding:9px 14px;}
  td,th{padding:10px 6px;font-size:13px;}
  /* 通讯录条目移动端适配 */
  .contact{gap:10px;padding:10px 4px;}
  .c-col-batch{min-width:60px;}
  .c-batch-tag{font-size:10px;padding:2px 6px;}
  .c-col-info{gap:8px;}
  .c-name-text{font-size:14px;width:60px;}
  .c-phone-text{font-size:15px;}
  .c-col-action{min-width:74px;}
  /* 左右分栏移动端适配 */
  .split-panel{flex-direction:column;min-height:auto;}
  .sidebar{width:100%;flex-direction:row;flex-wrap:wrap;padding:10px 14px;border-right:none;border-bottom:1px solid var(--border);}
  .sidebar-brand{border:none;padding:8px 6px 0;}
  .sb-text{font-size:15px;}
  .sidebar-nav{flex-direction:row;gap:6px;padding:8px 0 0;overflow-x:auto;}
  .side-item{white-space:nowrap;padding:7px 12px;font-size:13px;border-radius:9px;}
  .si-icon{display:none;}
  .sidebar-footer{display:none;}/* 移动端底部操作收进顶栏菜单 */
  .content-area{padding:16px 16px 32px;}
}

/* ============ 顶部汉堡菜单（移动端） ============ */
.nav-toggle{display:none;}
.head-menu{display:flex;align-items:center;gap:10px;}
@media (max-width:600px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;margin:0;padding:0;border-radius:10px;font-size:18px;background:#fff;border:1px solid var(--border);color:var(--text);}
  .head-user{position:relative;}
  .head-menu{display:none;position:absolute;right:10px;top:calc(100% + 8px);flex-direction:column;align-items:stretch;gap:8px;min-width:150px;padding:12px;background:#fff;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 16px 40px rgba(31,42,58,.18);z-index:60;}
  .head-menu.open{display:flex;}
  .head-menu button{margin:0;width:100%;text-align:center;}
}

/* ============ 多用户分配区域（上传 + 二次分配弹层） ============ */
.assign-area{border:1px solid var(--border);border-radius:11px;padding:10px 12px;background:#fafbfd;max-height:420px;overflow-y:auto;}
.assign-area::-webkit-scrollbar{width:5px;}
.assign-area::-webkit-scrollbar-thumb{background:#d1d9e6;border-radius:4px;}
.assign-header{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--border);margin-bottom:6px;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;}
.assign-col-user{flex:1;}
.assign-col-share{width:110px;text-align:center;font-weight:600;color:var(--accent-text);}
.assign-count-row{margin-bottom:10px;}
.assign-count-label{display:block;font-size:13px;margin-bottom:6px;color:#3a4a5e;font-weight:500;}
.assign-count-row input[type="number"]{width:100%;padding:10px 12px;border:1px solid var(--field-border);border-radius:10px;font-size:14px;background:var(--card-bg);color:var(--field-text);transition:border-color .15s,box-shadow .15s;}
.assign-count-row input[type="number"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.assign-row{display:flex;align-items:center;gap:8px;padding:5px 0;border-bottom:1px solid rgba(227,233,242,.45);}
.assign-row:last-child{border-bottom:none;}
.assign-check{display:flex;align-items:center;gap:7px;flex:1;cursor:pointer;font-size:14px;font-weight:500;color:var(--text);user-select:none;}
.assign-check input[type="checkbox"]{width:17px;height:17px;accent-color:var(--accent);cursor:pointer;flex:none;margin:0;}
.assign-share{width:110px;text-align:center;font-size:14px;font-weight:600;color:var(--accent-text);}
.assign-hint{font-size:12px!important;color:var(--muted)!important;line-height:1.5;}
.assign-total{text-align:right;font-size:12px;color:var(--muted);margin-top:6px;padding-top:6px;border-top:1px solid var(--border);font-weight:600;}
/* 分配区域分页 */
.assign-pager{display:flex;align-items:center;justify-content:center;gap:12px;margin:10px 0 4px;padding:8px 0;border-top:1px solid rgba(227,233,242,.5);}
.pager-btn{padding:5px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;}
.pager-btn:hover:not(.disabled){background:var(--accent-soft);color:var(--accent-text);border-color:var(--accent);}
.pager-btn.disabled{opacity:.4;cursor:not-allowed;}
.pager-info{font-size:13px;color:var(--muted);font-weight:500;}
.pill-count{font-weight:400;color:var(--muted);margin-left:3px;font-size:11px;}
/* 分配弹层 */
.modal.assign-modal{max-width:480px;width:94%;}
.modal.assign-modal h3{margin-bottom:2px;}
.modal.assign-modal .hint{font-size:12px;color:var(--muted);margin:2px 0 10px;line-height:1.6;}
.modal.assign-modal .err{color:var(--danger);font-size:12px;min-height:16px;margin:8px 0 0;}

/* ============ 用户端：AI 论文拟题 ============ */
.seg{display:flex;gap:8px;margin:0 0 16px;}
.seg-btn{background:#f1f5fb;color:var(--muted);border:1px solid var(--border);padding:9px 16px;margin-top:0;font-weight:500;font-size:13px;flex:1;}
.seg-btn:hover{background:#e9eff7;}
.seg-btn.active{background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(37,99,235,.25);}
.topic-item{display:flex;gap:10px;align-items:flex-start;padding:13px 4px;border-bottom:1px solid var(--border);}
.topic-item:last-child{border-bottom:none;}
.topic-idx{flex:none;width:24px;height:24px;border-radius:50%;background:var(--accent-soft);color:var(--accent-text);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:1px;}
.topic-body{flex:1;min-width:0;}
.topic-text{flex:1;min-width:0;font-size:15px;line-height:1.5;color:var(--text);word-break:break-word;}
.topic-type{font-size:12px;line-height:1.4;color:var(--muted);margin-top:4px;font-weight:500;}
.copy-btn{background:var(--accent-soft);color:var(--accent-text);border:1px solid var(--accent-soft);padding:5px 13px;margin-top:0;font-size:12px;font-weight:600;border-radius:9px;box-shadow:none;flex:none;}
.copy-btn:hover{opacity:.85;transform:none;}
.allow-copy{-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;user-select:text;}

/* ============ 用户端左右分栏布局 ============ */
.split-panel{display:flex;min-height:calc(100vh - 64px);margin-top:0;}
/* ---- 左侧导航栏（功能分区） ---- */
.sidebar{
  width:200px;flex:none;
  background:#ffffff;
  border-right:1px solid var(--border-strong);
  box-shadow:6px 0 24px rgba(31,42,58,.06);
  display:flex;flex-direction:column;padding:0 0 20px;
}
.sidebar-brand{
  display:flex;align-items:center;gap:8px;padding:18px 12px 12px;border-bottom:1px solid var(--border);
}
.sb-icon{font-size:24px;}
.sb-text{font-family:var(--font-head);font-size:17px;font-weight:700;color:var(--text);letter-spacing:.5px;}
/* 导航项 */
.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding:10px 8px;}
.side-item{
  display:flex;align-items:center;gap:8px;
  width:100%;padding:9px 10px;margin:0;
  background:transparent;border:1px solid transparent;border-radius:12px;
  color:var(--muted);font-size:13.5px;font-weight:500;font-family:var(--font-body);
  cursor:pointer;transition:all .2s ease;text-align:left;
}
.side-item:hover{background:var(--accent-soft);color:var(--accent-text);}
.side-item.active{
  background:linear-gradient(135deg,var(--accent),var(--accent-strong));
  color:#fff;border-color:transparent;
  box-shadow:0 6px 20px rgba(6,182,212,.28);
}
.si-icon{font-size:17px;flex:none;width:22px;text-align:center;}
.si-label{flex:1;}
/* 底部用户区 */
.sidebar-footer{margin-top:auto;padding:14px 10px;border-top:1px solid var(--border);}
.sb-user{font-size:13px;font-weight:600;color:var(--text);padding:0 0 8px;}
.sb-action{width:100%;margin:3px 0 !important;padding:8px 14px !important;font-size:13px;border-radius:10px !important;}
.danger-outline{color:var(--danger);border-color:var(--danger);background:transparent;}
.danger-outline:hover{background:#fef2f2;color:var(--danger-strong);}
/* ---- 右侧内容区 ---- */
.content-area{
  flex:1;min-width:0;
  padding:28px 36px 40px;
  overflow-y:auto;
  /* 不再限制子元素 max-width，让内容区自适应撑满可用空间 */
}
.view-section.hidden{display:none!important;}
.view-section.active{display:block;}
.sec-header h2{
  margin:0 0 10px;font-size:19px;font-weight:700;color:var(--text);font-family:var(--font-head);
}

/* User viewport lock - 2026-07-20 */
body.theme-user{height:100vh;height:100dvh;min-height:0;overflow:hidden;display:flex;flex-direction:column;}
body.theme-user>header{flex:0 0 auto;}
body.theme-user .split-panel{flex:1 1 auto;height:auto;min-height:0;overflow:hidden;margin-top:0;}
body.theme-user .sidebar{height:auto;min-height:0;overflow:hidden;}
body.theme-user .content-area{height:auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;}
/* select-all-strong */ .select-all-users-btn{background:#2563eb!important;color:#fff!important;border:1px solid #1d4ed8!important;padding:7px 17px!important;font-size:13px!important;font-weight:700!important;border-radius:9px!important;box-shadow:0 4px 12px #2563eb44!important;cursor:pointer!important}


/* assign-layout-v2 */
.assign-area{border:0!important;background:transparent!important;padding:0!important;max-height:none!important;overflow:visible!important;display:flex;flex-direction:column;gap:14px;}
.assign-count-panel{border:1px solid var(--border);border-radius:12px;padding:14px 16px;background:#fff;box-shadow:0 6px 18px rgba(31,42,58,.06);}
.assign-count-panel .assign-count-row{margin:0;}
.assign-users-panel{border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:#fafbfd;height:clamp(500px,62vh,680px);overflow-y:auto;}
.assign-users-panel::-webkit-scrollbar{width:7px;}
.assign-users-panel::-webkit-scrollbar-thumb{background:#c5cfdd;border-radius:6px;}
.assign-users-panel .assign-header{position:sticky;top:-12px;z-index:2;background:#fafbfd;padding-top:12px;}