:root{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:#1c2b33;background:#f3f7f6}
*{box-sizing:border-box}body{margin:0} [v-cloak]{display:none}.muted{color:#8a9a9f}.full{width:100%}
.login-page{min-height:100vh;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;padding:8vw;background:radial-gradient(circle at 15% 20%,#d8fff4,transparent 35%),linear-gradient(135deg,#effcf8,#f5f8f8 60%,#dff7f2)}
.login-visual{padding:6vw}.brand-mark{width:86px;height:86px;border-radius:28px;background:#10b894;color:white;display:grid;place-items:center;font-size:54px;box-shadow:0 20px 45px #10b89455}.login-visual h1{font-size:52px;margin:30px 0 10px}.login-visual p{font-size:20px;color:#557078}
.login-card{width:430px;border:0!important;border-radius:22px!important;padding:30px;box-shadow:0 30px 80px #173f3540!important}.login-card h2{margin:0 0 8px;font-size:28px}.login-card .muted{margin:0 0 28px}
.shell{height:100vh}.sidebar{background:linear-gradient(180deg,#102c31,#143b39);color:white;display:flex;flex-direction:column;overflow-y:auto}.logo{height:84px;min-height:84px;display:flex;align-items:center;gap:12px;padding:0 24px;border-bottom:1px solid #ffffff16}.logo>span{background:#13ba96;width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-size:28px}.logo b,.logo small{display:block}.logo small{font-size:9px;letter-spacing:2px;color:#7fb6ae;margin-top:3px}.sidebar .el-menu{border:0;padding:16px 12px}.sidebar .el-menu-item,.sidebar .el-sub-menu__title{border-radius:10px;margin:4px 0}.sidebar .el-menu-item.is-active{background:#13b894!important}.sidebar .el-menu--inline{background:#0d292b!important}.sidebar-foot{margin-top:auto;padding:22px 26px;color:#7fa4a4;font-size:12px;line-height:1.8}
.topbar{height:84px!important;background:#fff;border-bottom:1px solid #e5ecea;display:flex;align-items:center;justify-content:space-between;padding:0 30px!important}.topbar h2{margin:0 0 4px}.top-actions{display:flex;gap:15px;align-items:center}.content{padding:26px!important}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px}.stats-grid .el-card{border:0;border-radius:16px}.stats-grid .el-card__body{display:flex;gap:16px;align-items:center}.stats-grid small,.stats-grid strong,.stats-grid em{display:block}.stats-grid strong{font-size:28px;margin:6px 0}.stats-grid em{font-style:normal;color:#85959a;font-size:12px}.stat-icon{width:54px;height:54px;border-radius:17px;display:grid;place-items:center;color:white;font-size:20px}.green{background:#16b993}.blue{background:#3c8df6}.orange{background:#f4a333}.purple{background:#8d65e8}
.panel{border:0!important;border-radius:15px!important;margin-bottom:22px}.sub-panel{border:1px solid #edf2f0!important;border-radius:14px!important;margin-top:18px;background:#fbfdfc!important}.panel-title,.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px}.toolbar{justify-content:flex-start;margin-bottom:18px;flex-wrap:wrap}.toolbar .el-input{max-width:420px}.el-pagination{margin-top:20px;justify-content:flex-end}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.question-bank-layout{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.catalog-column{background:#f7fbfa;border:1px solid #e6f0ee;border-radius:14px;padding:12px;min-height:320px}.catalog-column h4{margin:2px 0 10px;color:#173b36;display:flex;align-items:center;justify-content:space-between}.catalog-list{display:grid;gap:8px;max-height:420px;overflow:auto;padding-right:2px}.catalog-item{border:1px solid #e3ecea;background:#fff;border-radius:10px;text-align:left;padding:10px 11px;cursor:pointer;color:#22373a;transition:.15s}.catalog-item:hover{border-color:#16b993;box-shadow:0 6px 18px #0bbf9120}.catalog-item.active{border-color:#11b891;background:#eafaf6;color:#07876b}.catalog-item.hidden{opacity:.62;background:#f3f5f5}.catalog-line{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.catalog-item span,.catalog-item small{display:block}.catalog-item span{font-weight:600;line-height:1.35}.catalog-item small{margin-top:5px;color:#809197;font-size:12px}.catalog-item small em{font-style:normal;color:#d46b08;margin-left:6px}.import-help,.import-form{margin-top:14px}.question-list{display:grid;gap:14px;margin-top:18px}.question-list .el-card{border-radius:12px}.question-list h3{font-size:16px}.question-meta{display:flex;gap:12px;color:#829196;font-size:12px}.stem{background:#ecfaf6;padding:12px;border-radius:8px;color:#355b51}.options{white-space:pre-wrap;color:#4f6066}.answer{color:#0f9f80;border-top:1px solid #eef2f1;padding-top:12px}
.mini-stats{display:flex;gap:28px;padding:4px 0 20px;color:#74868b}.mini-stats b{color:#0f9f80;font-size:20px;margin-left:6px}.narrow{max-width:900px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px}.setting-note{margin:5px 0 0;font-weight:normal;font-size:12px}
.login-method-sort{display:grid;gap:12px;margin:18px 0}.login-method-row{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid #e1ece9;border-radius:13px;background:#f9fcfb}.login-method-rank{flex:none;width:34px;height:34px;border-radius:11px;background:#dff7f0;color:#07866b;display:grid;place-items:center;font-weight:800}.login-method-copy{min-width:0;flex:1}.login-method-copy>div{display:flex;align-items:center;gap:9px}.login-method-copy small{display:block;color:#7e908b;margin-top:5px;line-height:1.45}
.file-label{cursor:pointer;color:#0aa481;font-weight:600}.upload-tip{font-size:12px;margin-top:6px}
.wgt-guide{max-width:900px;margin-bottom:18px}.wgt-upload-card{display:flex;align-items:center;gap:16px;padding:20px;border:1px dashed #b9cbc6;border-radius:14px;background:#f8fbfa;margin-bottom:22px}.wgt-upload-card.is-ready{border-style:solid;border-color:#8ed8c5;background:#f0fbf7}.wgt-file-icon{flex:none;width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,#15c39a,#078b6c);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800;letter-spacing:1px;box-shadow:0 8px 22px #0aa47b30}.wgt-upload-copy{min-width:0;flex:1;display:flex;flex-direction:column;gap:7px}.wgt-upload-copy b{font-size:16px;color:#183a32}.wgt-upload-copy span{font-size:12px;color:#7d8e89;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wgt-upload-button{flex:none;padding:10px 18px;border-radius:9px;background:#11ae89;color:#fff;font-size:14px;font-weight:650;cursor:pointer}.wgt-upload-button.disabled{opacity:.55;cursor:not-allowed}.wgt-form{border-top:1px solid #edf2f0;padding-top:20px}.wgt-options{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:4px 0 22px}.wgt-options>div{display:flex;align-items:center;gap:12px;padding:15px;border-radius:12px;background:#f5f9f8;border:1px solid #e8f0ee}.wgt-options span{display:flex;flex-direction:column;gap:4px}.wgt-options b{font-size:14px}.wgt-options small{font-size:12px;color:#81918c}
.cmda-import-line{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}.cmda-import-line .muted{font-size:12px}
.rich-editor-wrap{width:100%;border:1px solid #dcdfe6;border-radius:8px;overflow:hidden;background:#fff}
.rich-toolbar{display:flex;gap:6px;flex-wrap:wrap;padding:8px;border-bottom:1px solid #ebeef5;background:#f7f9fb}
.rich-editor{min-height:260px;padding:16px;line-height:1.75;outline:none;color:#263238}
.rich-editor h2{font-size:22px;color:#0b8f73}.rich-editor img{max-width:100%;height:auto}
.customer-qr{display:block;width:150px;height:150px;object-fit:contain;margin-top:12px;border:1px solid #e5e9e8;border-radius:10px;background:#fff}
.search-detail h4{margin:20px 0 9px}.detail-text{white-space:pre-wrap;line-height:1.7;padding:14px;background:#f6faf9;border-radius:10px}.search-image{display:block;max-width:100%;max-height:480px;object-fit:contain;margin:auto;border:1px solid #e5e9e8;border-radius:10px}.json-view{max-height:360px;overflow:auto;white-space:pre-wrap;word-break:break-word;background:#17211f;color:#d9f5ed;padding:14px;border-radius:10px;font-size:12px;line-height:1.55}
.quill-editor{width:100%;background:#fff}.quill-editor .ql-editor{min-height:220px;font-size:15px;line-height:1.7}.quill-editor .ql-editor img{max-width:100%;height:auto}.ql-toolbar.ql-snow,.ql-container.ql-snow{border-color:#dcdfe6}.ql-toolbar.ql-snow{border-radius:8px 8px 0 0}.ql-container.ql-snow{border-radius:0 0 8px 8px}.splash-preview{display:block;width:180px;height:260px;object-fit:cover;margin-top:12px;border:1px solid #e5e9e8;border-radius:12px;background:#f5f7f6}
@media(max-width:1200px){.question-bank-layout{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1000px){.stats-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1fr}.login-page{grid-template-columns:1fr}.login-visual{display:none}.login-card{width:min(430px,92vw);margin:auto}}

.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px}
.chart-card{border:0;border-radius:15px;overflow:hidden;transition:box-shadow .25s ease,transform .25s ease}
.chart-card:hover{box-shadow:0 10px 30px rgba(15,70,58,.10);transform:translateY(-2px)}
.chart-card.wide{grid-column:1/-1}
.chart-card .el-card__body{padding:18px 20px 14px}
.chart-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:12px;flex-wrap:wrap}
.chart-title{display:flex;gap:18px;flex-wrap:wrap}
.chart-legend{display:flex;align-items:center;gap:7px;font-size:13px;color:#3c5157;font-weight:600}
.chart-legend i{width:10px;height:10px;border-radius:3px;display:inline-block}
.chart-total{font-size:12px;color:#8a9aa0}
.chart-total b{color:#14352e;font-size:17px;margin-left:5px;font-weight:700}
.chart-wrap{position:relative}
.chart-svg{display:block;width:100%;height:140px}
.chart-gridline{stroke:#edf3f1;stroke-width:1;vector-effect:non-scaling-stroke}
.chart-line{stroke-width:2.5;stroke-linecap:round;stroke-dasharray:2000;stroke-dashoffset:2000;animation:drawLine 1.5s cubic-bezier(.4,0,.2,1) forwards}
.chart-area{opacity:0;animation:areaIn .9s ease .55s forwards}
@keyframes drawLine{to{stroke-dashoffset:0}}
@keyframes areaIn{to{opacity:1}}
.chart-dots{position:absolute;inset:0}
.chart-dot{position:absolute;width:9px;height:9px;border-radius:50%;transform:translate(-50%,-50%);border:2px solid #fff;box-shadow:0 1px 5px rgba(18,58,48,.28);cursor:pointer;transition:transform .16s ease}
.chart-dot:hover{transform:translate(-50%,-50%) scale(1.6);z-index:3}
.chart-dot em{position:absolute;bottom:15px;left:50%;transform:translateX(-50%);background:#163730;color:#fff;font-style:normal;font-size:11px;line-height:1;padding:5px 9px;border-radius:7px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .16s ease;box-shadow:0 4px 12px rgba(10,40,32,.25)}
.chart-dot:hover em{opacity:1}
.chart-dates{display:flex;justify-content:space-between;padding:9px 2.5% 2px}
.chart-dates span{font-size:11px;color:#94a4a9}
@media(max-width:1000px){.chart-grid{grid-template-columns:1fr}.chart-card.wide{grid-column:auto}}

/* Article category tree */
.article-category-block{margin-bottom:18px;border:1px solid #e8f0ee;border-radius:10px;padding:14px 16px;background:#fafcfb}
.category-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:8px;border-bottom:1px solid #edf3f1}
.category-info{display:flex;align-items:center;gap:4px}

/* ========== Mobile Responsive ========== */
.hamburger{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:#2c3e44;padding:4px 8px;border-radius:6px;line-height:1}
.hamburger:active{background:#e8f0ee}
.sidebar-overlay{display:none}
.hide-mobile{display:inline}

@media(max-width:768px){
  /* Hamburger visible */
  .hamburger{display:block}
  .hide-mobile{display:none!important}

  /* Sidebar as drawer */
  .shell{position:relative}
  .sidebar{position:fixed!important;left:-260px;top:0;bottom:0;width:260px!important;z-index:2001;transition:left .3s ease;box-shadow:none}
  .sidebar.sidebar-open{left:0;box-shadow:4px 0 24px rgba(0,0,0,.25)}
  .sidebar-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:2000}

  /* Topbar compact */
  .topbar{height:56px!important;padding:0 12px!important}
  .topbar h2{font-size:16px!important;margin:0!important}
  .top-actions{gap:8px}
  .top-actions span{display:none}

  /* Content padding */
  .content{padding:12px!important}

  /* Stats grid */
  .stats-grid{grid-template-columns:1fr 1fr!important;gap:10px!important}
  .stats-grid .el-card__body{padding:12px!important;gap:10px!important}
  .stats-grid strong{font-size:20px!important}
  .stat-icon{width:40px!important;height:40px!important;font-size:16px!important;border-radius:12px!important}

  /* Content grid single column */
  .content-grid{grid-template-columns:1fr!important;gap:14px!important}
  .form-grid{grid-template-columns:1fr!important}
  .settings-grid{grid-template-columns:1fr!important}
  .wgt-upload-card{align-items:flex-start;flex-wrap:wrap}.wgt-upload-copy{min-width:180px}.wgt-upload-button{width:100%;text-align:center}.wgt-options{grid-template-columns:1fr!important}

  /* Question bank layout */
  .question-bank-layout{grid-template-columns:1fr 1fr!important;gap:8px!important}
  .catalog-column{min-height:200px!important;padding:8px!important}

  /* Tables scrollable */
  .el-table{font-size:13px!important}
  .el-table .el-table__body-wrapper{overflow-x:auto!important;-webkit-overflow-scrolling:touch}
  .el-table .cell{padding:0 6px!important}

  /* Panels */
  .panel{margin-bottom:14px!important}
  .panel-title{flex-wrap:wrap;gap:8px}
  .panel-title .el-button{font-size:12px!important;padding:6px 10px!important}

  /* Toolbar */
  .toolbar{gap:8px!important}
  .toolbar .el-input{max-width:100%!important}

  /* Pagination */
  .el-pagination{flex-wrap:wrap;justify-content:center!important;gap:4px}
  .el-pagination .el-pager li{min-width:28px!important;height:28px!important;line-height:28px!important;font-size:12px!important}

  /* Dialogs near fullscreen */
  .el-dialog{width:95vw!important;max-width:95vw!important;margin:5vh auto!important}
  .el-dialog__body{padding:12px 16px!important;max-height:70vh;overflow-y:auto}
  .el-dialog__header{padding:12px 16px!important}
  .el-dialog__footer{padding:10px 16px!important}

  /* Quill editor */
  .quill-editor .ql-editor{min-height:150px!important;font-size:14px!important}

  /* Charts */
  .chart-grid{grid-template-columns:1fr!important;gap:12px!important}
  .chart-svg{height:110px!important}

  /* Article category blocks */
  .article-category-block{padding:10px 12px!important}
  .category-header{flex-direction:column;align-items:flex-start;gap:6px}

  /* Mini stats */
  .mini-stats{flex-wrap:wrap;gap:14px!important}

  /* Splash preview */
  .splash-preview{width:120px!important;height:180px!important}

  /* Customer QR */
  .customer-qr{width:120px!important;height:120px!important}

  /* Narrow panels */
  .narrow{max-width:100%!important}

  /* Login page mobile */
  .login-page{padding:5vw!important}
  .login-card{width:92vw!important;padding:20px!important}
  .login-card h2{font-size:22px!important}

  /* Search detail */
  .search-image{max-height:280px!important}
  .json-view{max-height:240px!important;font-size:11px!important}

  /* CMDA import */
  .cmda-import-line{flex-direction:column;align-items:stretch!important}

  /* Form items */
  .el-form-item{margin-bottom:14px!important}
  .el-form-item__label{font-size:13px!important}

  /* Buttons in tables */
  .el-table .el-button--small{padding:4px 8px!important;font-size:12px!important}

  /* Tags */
  .el-tag{font-size:11px!important}
}

@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr!important}
  .question-bank-layout{grid-template-columns:1fr!important}
  .topbar h2{font-size:14px!important}
  .el-dialog{width:98vw!important;margin:2vh auto!important}
  .el-dialog__body{max-height:75vh}
}