html,body{width:100%;height:100%}input::-ms-clear{display:none}input::-ms-reveal{display:none}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:#0000;font-family:sans-serif;line-height:1.15}@-ms-viewport{width:device-width}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5em;font-weight:500}p{margin-top:0;margin-bottom:1em}abbr[title],abbr[data-original-title]{-webkit-text-decoration:underline dotted;cursor:help;border-bottom:0;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit;margin-bottom:1em}input[type=text],input[type=password],input[type=number],textarea{-webkit-appearance:none}ol,ul,dl{margin-top:0;margin-bottom:1em}ol ol,ul ul,ol ul,ul ol{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}pre,code,kbd,samp{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace;font-size:1em}pre{margin-top:0;margin-bottom:1em;overflow:auto}figure{margin:0 0 1em}img{vertical-align:middle;border-style:none}a,area,button,[role=button],input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{text-align:left;caption-side:bottom;padding-top:.75em;padding-bottom:.3em}input,button,select,optgroup,textarea{color:inherit;font-size:inherit;font-family:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner{border-style:none;padding:0}[type=button]::-moz-focus-inner{border-style:none;padding:0}[type=reset]::-moz-focus-inner{border-style:none;padding:0}[type=submit]::-moz-focus-inner{border-style:none;padding:0}input[type=radio],input[type=checkbox]{box-sizing:border-box;padding:0}input[type=date],input[type=time],input[type=datetime-local],input[type=month]{-webkit-appearance:listbox}textarea{resize:vertical;overflow:auto}fieldset{border:0;min-width:0;margin:0;padding:0}legend{width:100%;max-width:100%;color:inherit;font-size:1.5em;line-height:inherit;white-space:normal;margin-bottom:.5em;padding:0;display:block}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button{height:auto}[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-cancel-button{-webkit-appearance:none}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}mark{background-color:#feffe6;padding:.2em}:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f4f7fb;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{background:radial-gradient(circle at 12% 8%,#1f6feb1f,#0000 30%),radial-gradient(circle at 86% 10%,#14b8a61a,#0000 30%),linear-gradient(#f8fbff 0%,#eef3f8 100%);min-height:100vh}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.page-shell{flex-direction:column;min-height:100vh;display:flex}.page-container{width:min(1200px,100% - 40px);margin:0 auto}.page-container.mobile{width:min(760px,100% - 24px)}.app-card,.panel{background:#ffffffeb;border:1px solid #7a8aa32e;border-radius:8px;box-shadow:0 16px 42px #13264814}.hero-panel,.list-card,.question-card,.stat-card{padding:24px}.card-grid,.content-grid{gap:16px;display:grid}.section-title{color:#172033;margin:0 0 12px;font-size:20px;font-weight:700}.section-subtitle,.muted{color:#667085}.page-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px;display:flex}.page-header h1{color:#121a2b;margin:0;font-size:28px;line-height:1.2}.page-header p{color:#667085;margin:8px 0 0}.toolbar{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.auth-layout{place-items:center;min-height:100vh;padding:28px;display:grid}.auth-box{grid-template-columns:minmax(0,1.1fr) minmax(380px,.9fr);width:min(1080px,100%);min-height:620px;display:grid;overflow:hidden}.auth-visual{color:#fff;background:linear-gradient(#0c2044b8,#0c2044c7),url(/assets/hero-CLDdwZDr.png) 50%/cover;flex-direction:column;justify-content:space-between;padding:48px;display:flex;position:relative}.auth-brand{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1f;border:1px solid #fff3;border-radius:999px;align-items:center;gap:10px;width:fit-content;padding:8px 12px;font-weight:700;display:inline-flex}.brand-mark{color:#062c2d;background:#14b8a6;border-radius:8px;place-items:center;width:28px;height:28px;font-weight:900;display:inline-grid}.auth-visual h1{letter-spacing:0;max-width:560px;margin:0 0 16px;font-size:clamp(34px,4vw,54px);line-height:1.06}.auth-visual p{color:#ffffffd1;max-width:540px;margin:0;font-size:16px}.badge-row{flex-wrap:wrap;gap:8px;margin-top:24px;display:flex}.badge{color:#ffffffe6;background:#ffffff1f;border:1px solid #fff3;border-radius:999px;align-items:center;min-height:30px;padding:6px 12px;font-size:13px;display:inline-flex}.auth-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.auth-metric{background:#ffffff1a;border:1px solid #ffffff29;border-radius:8px;padding:14px}.auth-metric strong{font-size:22px;display:block}.auth-metric span{color:#ffffffb8;font-size:12px}.auth-form{background:#fff;flex-direction:column;justify-content:center;padding:48px;display:flex}.auth-form h2{color:#111827;margin:0;font-size:28px}.auth-form .section-subtitle{margin:8px 0 28px}.topbar{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffdb;border-bottom:1px solid #7a8aa329;align-items:center;min-height:72px;display:flex}.topbar-inner{justify-content:space-between;align-items:center;gap:16px;display:flex}.topbar-title{color:#172033;align-items:center;gap:12px;font-size:16px;font-weight:800;display:flex}.admin-shell{background:#f4f7fb;grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.admin-sider{color:#fff;background:#101827;border-right:1px solid #7a8aa32e;flex-direction:column;height:100vh;padding:22px 16px;display:flex;position:sticky;top:0}.admin-logo{align-items:center;gap:12px;padding:6px 8px 24px;display:flex}.admin-logo strong{font-size:17px;display:block}.admin-logo span{color:#ffffff8f;font-size:12px}.admin-nav{gap:8px;display:grid}.admin-nav-item{color:#ffffffad;border-radius:8px;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:10px;padding:11px 10px;transition:background .18s,color .18s;display:grid}.admin-nav-item:hover,.admin-nav-item.router-link-active{color:#fff;background:#ffffff1a}.admin-nav-icon{background:#ffffff1a;border-radius:8px;place-items:center;width:34px;height:34px;display:grid}.admin-nav-item strong{font-size:14px;display:block}.admin-nav-item span{color:#ffffff75;font-size:12px;display:block}.admin-user{background:#ffffff14;border-radius:8px;margin-top:auto;padding:14px}.admin-user strong{display:block}.admin-main{min-width:0}.admin-header{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffdb;border-bottom:1px solid #7a8aa329;justify-content:space-between;align-items:center;gap:16px;min-height:72px;padding:0 28px;display:flex}.admin-content{padding:28px}.menu-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.stat-card{transition:transform .18s,box-shadow .18s}.stat-card:hover{transform:translateY(-2px);box-shadow:0 20px 48px #1326481f}.stat-label{color:#667085;font-size:13px}.stat-value{color:#111827;margin-top:8px;font-size:28px;font-weight:800}.exam-option{background:#fff;border:1px solid #7a8aa32e;border-radius:8px;padding:18px;transition:transform .18s,box-shadow .18s}.exam-option:hover{transform:translateY(-2px);box-shadow:0 14px 30px #1326481a}.question-title{color:#121a2b;margin:0 0 14px;font-size:18px;font-weight:700}.question-card-mobile{padding:20px 18px}.exam-taking-grid{gap:14px}.topbar-title{align-items:center;gap:10px;font-size:18px;font-weight:800;line-height:1.2;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:14px;font-weight:800;display:inline-flex}.logout-button{color:#667085;flex-shrink:0}.result-score{justify-content:space-between;align-items:center;gap:12px;display:flex}.report-panel{overflow:hidden}.markdown-report{color:#263044;font-size:15px;line-height:1.85}.markdown-report>:first-child{margin-top:0}.markdown-report>:last-child{margin-bottom:0}.markdown-report h1,.markdown-report h2,.markdown-report h3,.markdown-report h4{color:#111827;margin:24px 0 12px;line-height:1.35}.markdown-report h1{border-bottom:1px solid #7a8aa32e;padding-bottom:12px;font-size:26px}.markdown-report h2{font-size:22px}.markdown-report h3{font-size:18px}.markdown-report p{margin:10px 0}.markdown-report ul,.markdown-report ol{margin:10px 0 14px;padding-left:24px}.markdown-report li{margin:6px 0}.markdown-report strong{color:#111827;font-weight:800}.markdown-report blockquote{color:#344054;background:#4f46e50f;border-left:4px solid #4f46e5;border-radius:6px;margin:16px 0;padding:12px 16px}.markdown-report table{border-collapse:collapse;border-radius:8px;width:100%;margin:16px 0;font-size:14px;overflow:hidden}.markdown-report th,.markdown-report td{text-align:left;vertical-align:top;border:1px solid #7a8aa32e;padding:10px 12px}.markdown-report th{color:#111827;background:#f3f6fb;font-weight:800}.markdown-report code{color:#4338ca;background:#eef2ff;border-radius:5px;padding:2px 6px;font-size:.92em}.markdown-report pre{color:#f8fafc;background:#111827;border-radius:8px;padding:14px;overflow:auto}.markdown-report pre code{color:inherit;background:0 0;padding:0}@media (width<=960px){.auth-layout{padding:16px}.auth-box{grid-template-columns:1fr;min-height:0}.auth-visual{display:none}.auth-form{padding:28px 20px}.auth-form h2{font-size:24px}.auth-form .section-subtitle{margin-bottom:20px}.page-container,.page-container.mobile{width:min(100%,100% - 16px)}.topbar{min-height:64px;padding:10px 0}.topbar-inner{flex-direction:column;align-items:flex-start}.page-header{flex-direction:column;align-items:flex-start;margin-bottom:18px}.hero-panel,.list-card,.question-card,.stat-card{padding:18px}.mobile-only{display:block}}@media (width<=640px){.auth-layout{padding:12px}.auth-form{padding:22px 16px}.auth-form h2{font-size:22px}.auth-form .section-subtitle{margin-bottom:16px}.page-header h1{font-size:22px}.toolbar{width:100%}.toolbar .ant-btn{flex:1}.topbar-title{font-size:16px}.brand-mark{width:26px;height:26px;font-size:13px}.auth-metrics{grid-template-columns:1fr}.badge-row{margin-top:18px}.markdown-report{font-size:14px}.markdown-report h1{font-size:22px}.markdown-report h2{font-size:19px}}.grading-overlay{z-index:9999;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffeb;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.grading-card{background:#fff;border-radius:12px;flex-direction:column;align-items:center;gap:16px;padding:48px 40px;display:flex;box-shadow:0 20px 60px #1326481f}.grading-text{color:#172033;font-size:20px;font-weight:700}.grading-sub{color:#667085;font-size:14px}