@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";.exam-ai-floating-trigger{position:fixed;bottom:28px;right:28px;z-index:1000;width:58px;height:58px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#a855f7,#ec4899);box-shadow:0 8px 24px #6366f173;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);border:2px solid rgba(255,255,255,.3)}.exam-ai-floating-trigger:hover{transform:scale(1.1) translateY(-2px);box-shadow:0 12px 32px #a855f799}.exam-ai-trigger-icon{font-size:26px;color:#fff;animation:pulse-glow 2.5s infinite ease-in-out}@keyframes pulse-glow{0%,to{opacity:.9;transform:scale(1)}50%{opacity:1;transform:scale(1.08)}}.exam-ai-badge{position:absolute;top:-4px;right:-4px;background:#10b981;color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:10px;box-shadow:0 2px 6px #0003}.exam-ai-panel{position:fixed;bottom:96px;right:28px;width:440px;height:620px;max-width:calc(100vw - 32px);max-height:calc(100vh - 120px);z-index:1000;background:#ffffffeb;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:20px;border:1px solid rgba(255,255,255,.6);box-shadow:0 20px 48px #00000029,0 0 0 1px #6366f11a;display:flex;flex-direction:column;overflow:hidden;animation:panel-pop-in .3s cubic-bezier(.16,1,.3,1)}@keyframes panel-pop-in{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.exam-ai-header{padding:16px 20px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;display:flex;align-items:center;justify-content:space-between}.exam-ai-header-title{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px}.exam-ai-header-status{font-size:12px;opacity:.85;background:#fff3;padding:2px 8px;border-radius:12px}.exam-ai-close-btn{color:#fff;cursor:pointer;font-size:18px;opacity:.8;transition:opacity .2s}.exam-ai-close-btn:hover{opacity:1}.exam-ai-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:14px;background:#f8fafc}.exam-ai-msg-bubble{max-width:88%;padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.5;word-break:break-word}.exam-ai-msg-user{align-self:flex-end;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;border-bottom-right-radius:4px;box-shadow:0 4px 12px #6366f140}.exam-ai-msg-assistant{align-self:flex-start;background:#fff;color:#1e293b;border-bottom-left-radius:4px;border:1px solid #e2e8f0;box-shadow:0 2px 8px #0000000a}.exam-ai-draft-card{margin-top:10px;background:#f1f5f9;border:1px solid #cbd5e1;border-radius:12px;padding:12px}.exam-ai-draft-header{font-weight:700;font-size:14px;color:#1e293b;margin-bottom:6px;display:flex;align-items:center;gap:6px}.exam-ai-draft-meta{font-size:12px;color:#64748b;margin-bottom:8px;display:flex;gap:12px;flex-wrap:wrap}.exam-ai-draft-questions{max-height:160px;overflow-y:auto;margin-bottom:10px;padding-right:4px}.exam-ai-draft-q-item{font-size:13px;padding:6px 8px;background:#fff;border-radius:6px;margin-bottom:6px;border:1px solid #e2e8f0}.exam-ai-attachment-preview{display:flex;gap:8px;flex-wrap:wrap;padding:8px 16px;background:#f1f5f9;border-top:1px solid #e2e8f0}.exam-ai-chip{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #cbd5e1;padding:4px 10px;border-radius:16px;font-size:12px;color:#334155}.exam-ai-input-area{padding:12px 16px;background:#fff;border-top:1px solid #e2e8f0}.exam-ai-input-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.exam-ai-paste-tip{font-size:11px;color:#94a3b8}/*!
 * Quill Editor v1.3.7
 * https://quilljs.com/
 * Copyright (c) 2014, Jason Chen
 * Copyright (c) 2013, salesforce.com
 */.ql-container{box-sizing:border-box;font-family:Helvetica,Arial,sans-serif;font-size:13px;height:100%;margin:0;position:relative}.ql-container.ql-disabled .ql-tooltip{visibility:hidden}.ql-container.ql-disabled .ql-editor ul[data-checked]>li:before{pointer-events:none}.ql-clipboard{left:-100000px;height:1px;overflow-y:hidden;position:absolute;top:50%}.ql-clipboard p{margin:0;padding:0}.ql-editor{box-sizing:border-box;line-height:1.42;height:100%;outline:none;overflow-y:auto;padding:12px 15px;tab-size:4;-moz-tab-size:4;text-align:left;white-space:pre-wrap;word-wrap:break-word}.ql-editor>*{cursor:text}.ql-editor p,.ql-editor ol,.ql-editor ul,.ql-editor pre,.ql-editor blockquote,.ql-editor h1,.ql-editor h2,.ql-editor h3,.ql-editor h4,.ql-editor h5,.ql-editor h6{margin:0;padding:0;counter-reset:list-1 list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol,.ql-editor ul{padding-left:1.5em}.ql-editor ol>li,.ql-editor ul>li{list-style-type:none}.ql-editor ul>li:before{content:"•"}.ql-editor ul[data-checked=true],.ql-editor ul[data-checked=false]{pointer-events:none}.ql-editor ul[data-checked=true]>li *,.ql-editor ul[data-checked=false]>li *{pointer-events:all}.ql-editor ul[data-checked=true]>li:before,.ql-editor ul[data-checked=false]>li:before{color:#777;cursor:pointer;pointer-events:all}.ql-editor ul[data-checked=true]>li:before{content:"☑"}.ql-editor ul[data-checked=false]>li:before{content:"☐"}.ql-editor li:before{display:inline-block;white-space:nowrap;width:1.2em}.ql-editor li:not(.ql-direction-rtl):before{margin-left:-1.5em;margin-right:.3em;text-align:right}.ql-editor li.ql-direction-rtl:before{margin-left:.3em;margin-right:-1.5em}.ql-editor ol li:not(.ql-direction-rtl),.ql-editor ul li:not(.ql-direction-rtl){padding-left:1.5em}.ql-editor ol li.ql-direction-rtl,.ql-editor ul li.ql-direction-rtl{padding-right:1.5em}.ql-editor ol li{counter-reset:list-1 list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9;counter-increment:list-0}.ql-editor ol li:before{content:counter(list-0,decimal) ". "}.ql-editor ol li.ql-indent-1{counter-increment:list-1}.ql-editor ol li.ql-indent-1:before{content:counter(list-1,lower-alpha) ". "}.ql-editor ol li.ql-indent-1{counter-reset:list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-2{counter-increment:list-2}.ql-editor ol li.ql-indent-2:before{content:counter(list-2,lower-roman) ". "}.ql-editor ol li.ql-indent-2{counter-reset:list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-3{counter-increment:list-3}.ql-editor ol li.ql-indent-3:before{content:counter(list-3,decimal) ". "}.ql-editor ol li.ql-indent-3{counter-reset:list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-4{counter-increment:list-4}.ql-editor ol li.ql-indent-4:before{content:counter(list-4,lower-alpha) ". "}.ql-editor ol li.ql-indent-4{counter-reset:list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-5{counter-increment:list-5}.ql-editor ol li.ql-indent-5:before{content:counter(list-5,lower-roman) ". "}.ql-editor ol li.ql-indent-5{counter-reset:list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-6{counter-increment:list-6}.ql-editor ol li.ql-indent-6:before{content:counter(list-6,decimal) ". "}.ql-editor ol li.ql-indent-6{counter-reset:list-7 list-8 list-9}.ql-editor ol li.ql-indent-7{counter-increment:list-7}.ql-editor ol li.ql-indent-7:before{content:counter(list-7,lower-alpha) ". "}.ql-editor ol li.ql-indent-7{counter-reset:list-8 list-9}.ql-editor ol li.ql-indent-8{counter-increment:list-8}.ql-editor ol li.ql-indent-8:before{content:counter(list-8,lower-roman) ". "}.ql-editor ol li.ql-indent-8{counter-reset:list-9}.ql-editor ol li.ql-indent-9{counter-increment:list-9}.ql-editor ol li.ql-indent-9:before{content:counter(list-9,decimal) ". "}.ql-editor .ql-indent-1:not(.ql-direction-rtl){padding-left:3em}.ql-editor li.ql-indent-1:not(.ql-direction-rtl){padding-left:4.5em}.ql-editor .ql-indent-1.ql-direction-rtl.ql-align-right{padding-right:3em}.ql-editor li.ql-indent-1.ql-direction-rtl.ql-align-right{padding-right:4.5em}.ql-editor .ql-indent-2:not(.ql-direction-rtl){padding-left:6em}.ql-editor li.ql-indent-2:not(.ql-direction-rtl){padding-left:7.5em}.ql-editor .ql-indent-2.ql-direction-rtl.ql-align-right{padding-right:6em}.ql-editor li.ql-indent-2.ql-direction-rtl.ql-align-right{padding-right:7.5em}.ql-editor .ql-indent-3:not(.ql-direction-rtl){padding-left:9em}.ql-editor li.ql-indent-3:not(.ql-direction-rtl){padding-left:10.5em}.ql-editor .ql-indent-3.ql-direction-rtl.ql-align-right{padding-right:9em}.ql-editor li.ql-indent-3.ql-direction-rtl.ql-align-right{padding-right:10.5em}.ql-editor .ql-indent-4:not(.ql-direction-rtl){padding-left:12em}.ql-editor li.ql-indent-4:not(.ql-direction-rtl){padding-left:13.5em}.ql-editor .ql-indent-4.ql-direction-rtl.ql-align-right{padding-right:12em}.ql-editor li.ql-indent-4.ql-direction-rtl.ql-align-right{padding-right:13.5em}.ql-editor .ql-indent-5:not(.ql-direction-rtl){padding-left:15em}.ql-editor li.ql-indent-5:not(.ql-direction-rtl){padding-left:16.5em}.ql-editor .ql-indent-5.ql-direction-rtl.ql-align-right{padding-right:15em}.ql-editor li.ql-indent-5.ql-direction-rtl.ql-align-right{padding-right:16.5em}.ql-editor .ql-indent-6:not(.ql-direction-rtl){padding-left:18em}.ql-editor li.ql-indent-6:not(.ql-direction-rtl){padding-left:19.5em}.ql-editor .ql-indent-6.ql-direction-rtl.ql-align-right{padding-right:18em}.ql-editor li.ql-indent-6.ql-direction-rtl.ql-align-right{padding-right:19.5em}.ql-editor .ql-indent-7:not(.ql-direction-rtl){padding-left:21em}.ql-editor li.ql-indent-7:not(.ql-direction-rtl){padding-left:22.5em}.ql-editor .ql-indent-7.ql-direction-rtl.ql-align-right{padding-right:21em}.ql-editor li.ql-indent-7.ql-direction-rtl.ql-align-right{padding-right:22.5em}.ql-editor .ql-indent-8:not(.ql-direction-rtl){padding-left:24em}.ql-editor li.ql-indent-8:not(.ql-direction-rtl){padding-left:25.5em}.ql-editor .ql-indent-8.ql-direction-rtl.ql-align-right{padding-right:24em}.ql-editor li.ql-indent-8.ql-direction-rtl.ql-align-right{padding-right:25.5em}.ql-editor .ql-indent-9:not(.ql-direction-rtl){padding-left:27em}.ql-editor li.ql-indent-9:not(.ql-direction-rtl){padding-left:28.5em}.ql-editor .ql-indent-9.ql-direction-rtl.ql-align-right{padding-right:27em}.ql-editor li.ql-indent-9.ql-direction-rtl.ql-align-right{padding-right:28.5em}.ql-editor .ql-video{display:block;max-width:100%}.ql-editor .ql-video.ql-align-center{margin:0 auto}.ql-editor .ql-video.ql-align-right{margin:0 0 0 auto}.ql-editor .ql-bg-black{background-color:#000}.ql-editor .ql-bg-red{background-color:#e60000}.ql-editor .ql-bg-orange{background-color:#f90}.ql-editor .ql-bg-yellow{background-color:#ff0}.ql-editor .ql-bg-green{background-color:#008a00}.ql-editor .ql-bg-blue{background-color:#06c}.ql-editor .ql-bg-purple{background-color:#93f}.ql-editor .ql-color-white{color:#fff}.ql-editor .ql-color-red{color:#e60000}.ql-editor .ql-color-orange{color:#f90}.ql-editor .ql-color-yellow{color:#ff0}.ql-editor .ql-color-green{color:#008a00}.ql-editor .ql-color-blue{color:#06c}.ql-editor .ql-color-purple{color:#93f}.ql-editor .ql-font-serif{font-family:Georgia,Times New Roman,serif}.ql-editor .ql-font-monospace{font-family:Monaco,Courier New,monospace}.ql-editor .ql-size-small{font-size:.75em}.ql-editor .ql-size-large{font-size:1.5em}.ql-editor .ql-size-huge{font-size:2.5em}.ql-editor .ql-direction-rtl{direction:rtl;text-align:inherit}.ql-editor .ql-align-center{text-align:center}.ql-editor .ql-align-justify{text-align:justify}.ql-editor .ql-align-right{text-align:right}.ql-editor.ql-blank:before{color:#0009;content:attr(data-placeholder);font-style:italic;left:15px;pointer-events:none;position:absolute;right:15px}.ql-snow.ql-toolbar:after,.ql-snow .ql-toolbar:after{clear:both;content:"";display:table}.ql-snow.ql-toolbar button,.ql-snow .ql-toolbar button{background:none;border:none;cursor:pointer;display:inline-block;float:left;height:24px;padding:3px 5px;width:28px}.ql-snow.ql-toolbar button svg,.ql-snow .ql-toolbar button svg{float:left;height:100%}.ql-snow.ql-toolbar button:active:hover,.ql-snow .ql-toolbar button:active:hover{outline:none}.ql-snow.ql-toolbar input.ql-image[type=file],.ql-snow .ql-toolbar input.ql-image[type=file]{display:none}.ql-snow.ql-toolbar button:hover,.ql-snow .ql-toolbar button:hover,.ql-snow.ql-toolbar button:focus,.ql-snow .ql-toolbar button:focus,.ql-snow.ql-toolbar button.ql-active,.ql-snow .ql-toolbar button.ql-active,.ql-snow.ql-toolbar .ql-picker-label:hover,.ql-snow .ql-toolbar .ql-picker-label:hover,.ql-snow.ql-toolbar .ql-picker-label.ql-active,.ql-snow .ql-toolbar .ql-picker-label.ql-active,.ql-snow.ql-toolbar .ql-picker-item:hover,.ql-snow .ql-toolbar .ql-picker-item:hover,.ql-snow.ql-toolbar .ql-picker-item.ql-selected,.ql-snow .ql-toolbar .ql-picker-item.ql-selected{color:#06c}.ql-snow.ql-toolbar button:hover .ql-fill,.ql-snow .ql-toolbar button:hover .ql-fill,.ql-snow.ql-toolbar button:focus .ql-fill,.ql-snow .ql-toolbar button:focus .ql-fill,.ql-snow.ql-toolbar button.ql-active .ql-fill,.ql-snow .ql-toolbar button.ql-active .ql-fill,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-fill,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-fill,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-fill,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-fill,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-fill,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-fill,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-fill,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-fill,.ql-snow.ql-toolbar button:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar button:focus .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:focus .ql-stroke.ql-fill,.ql-snow.ql-toolbar button.ql-active .ql-stroke.ql-fill,.ql-snow .ql-toolbar button.ql-active .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke.ql-fill{fill:#06c}.ql-snow.ql-toolbar button:hover .ql-stroke,.ql-snow .ql-toolbar button:hover .ql-stroke,.ql-snow.ql-toolbar button:focus .ql-stroke,.ql-snow .ql-toolbar button:focus .ql-stroke,.ql-snow.ql-toolbar button.ql-active .ql-stroke,.ql-snow .ql-toolbar button.ql-active .ql-stroke,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke,.ql-snow.ql-toolbar button:hover .ql-stroke-miter,.ql-snow .ql-toolbar button:hover .ql-stroke-miter,.ql-snow.ql-toolbar button:focus .ql-stroke-miter,.ql-snow .ql-toolbar button:focus .ql-stroke-miter,.ql-snow.ql-toolbar button.ql-active .ql-stroke-miter,.ql-snow .ql-toolbar button.ql-active .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke-miter{stroke:#06c}@media (pointer: coarse){.ql-snow.ql-toolbar button:hover:not(.ql-active),.ql-snow .ql-toolbar button:hover:not(.ql-active){color:#444}.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-fill,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-fill,.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke.ql-fill{fill:#444}.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke,.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke-miter,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke-miter{stroke:#444}}.ql-snow,.ql-snow *{box-sizing:border-box}.ql-snow .ql-hidden{display:none}.ql-snow .ql-out-bottom,.ql-snow .ql-out-top{visibility:hidden}.ql-snow .ql-tooltip{position:absolute;transform:translateY(10px)}.ql-snow .ql-tooltip a{cursor:pointer;text-decoration:none}.ql-snow .ql-tooltip.ql-flip{transform:translateY(-10px)}.ql-snow .ql-formats{display:inline-block;vertical-align:middle}.ql-snow .ql-formats:after{clear:both;content:"";display:table}.ql-snow .ql-stroke{fill:none;stroke:#444;stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.ql-snow .ql-stroke-miter{fill:none;stroke:#444;stroke-miterlimit:10;stroke-width:2}.ql-snow .ql-fill,.ql-snow .ql-stroke.ql-fill{fill:#444}.ql-snow .ql-empty{fill:none}.ql-snow .ql-even{fill-rule:evenodd}.ql-snow .ql-thin,.ql-snow .ql-stroke.ql-thin{stroke-width:1}.ql-snow .ql-transparent{opacity:.4}.ql-snow .ql-direction svg:last-child{display:none}.ql-snow .ql-direction.ql-active svg:last-child{display:inline}.ql-snow .ql-direction.ql-active svg:first-child{display:none}.ql-snow .ql-editor h1{font-size:2em}.ql-snow .ql-editor h2{font-size:1.5em}.ql-snow .ql-editor h3{font-size:1.17em}.ql-snow .ql-editor h4{font-size:1em}.ql-snow .ql-editor h5{font-size:.83em}.ql-snow .ql-editor h6{font-size:.67em}.ql-snow .ql-editor a{text-decoration:underline}.ql-snow .ql-editor blockquote{border-left:4px solid #ccc;margin-bottom:5px;margin-top:5px;padding-left:16px}.ql-snow .ql-editor code,.ql-snow .ql-editor pre{background-color:#f0f0f0;border-radius:3px}.ql-snow .ql-editor pre{white-space:pre-wrap;margin-bottom:5px;margin-top:5px;padding:5px 10px}.ql-snow .ql-editor code{font-size:85%;padding:2px 4px}.ql-snow .ql-editor pre.ql-syntax{background-color:#23241f;color:#f8f8f2;overflow:visible}.ql-snow .ql-editor img{max-width:100%}.ql-snow .ql-picker{color:#444;display:inline-block;float:left;font-size:14px;font-weight:500;height:24px;position:relative;vertical-align:middle}.ql-snow .ql-picker-label{cursor:pointer;display:inline-block;height:100%;padding-left:8px;padding-right:2px;position:relative;width:100%}.ql-snow .ql-picker-label:before{display:inline-block;line-height:22px}.ql-snow .ql-picker-options{background-color:#fff;display:none;min-width:100%;padding:4px 8px;position:absolute;white-space:nowrap}.ql-snow .ql-picker-options .ql-picker-item{cursor:pointer;display:block;padding-bottom:5px;padding-top:5px}.ql-snow .ql-picker.ql-expanded .ql-picker-label{color:#ccc;z-index:2}.ql-snow .ql-picker.ql-expanded .ql-picker-label .ql-fill{fill:#ccc}.ql-snow .ql-picker.ql-expanded .ql-picker-label .ql-stroke{stroke:#ccc}.ql-snow .ql-picker.ql-expanded .ql-picker-options{display:block;margin-top:-1px;top:100%;z-index:1}.ql-snow .ql-color-picker,.ql-snow .ql-icon-picker{width:28px}.ql-snow .ql-color-picker .ql-picker-label,.ql-snow .ql-icon-picker .ql-picker-label{padding:2px 4px}.ql-snow .ql-color-picker .ql-picker-label svg,.ql-snow .ql-icon-picker .ql-picker-label svg{right:4px}.ql-snow .ql-icon-picker .ql-picker-options{padding:4px 0}.ql-snow .ql-icon-picker .ql-picker-item{height:24px;width:24px;padding:2px 4px}.ql-snow .ql-color-picker .ql-picker-options{padding:3px 5px;width:152px}.ql-snow .ql-color-picker .ql-picker-item{border:1px solid transparent;float:left;height:16px;margin:2px;padding:0;width:16px}.ql-snow .ql-picker:not(.ql-color-picker):not(.ql-icon-picker) svg{position:absolute;margin-top:-9px;right:0;top:50%;width:18px}.ql-snow .ql-picker.ql-header .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-font .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-size .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-label]:not([data-label=""]):before{content:attr(data-label)}.ql-snow .ql-picker.ql-header{width:98px}.ql-snow .ql-picker.ql-header .ql-picker-label:before,.ql-snow .ql-picker.ql-header .ql-picker-item:before{content:"Normal"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]:before{content:"Heading 1"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]:before{content:"Heading 2"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]:before{content:"Heading 3"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]:before{content:"Heading 4"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]:before{content:"Heading 5"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]:before{content:"Heading 6"}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]:before{font-size:2em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]:before{font-size:1.5em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]:before{font-size:1.17em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]:before{font-size:1em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]:before{font-size:.83em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]:before{font-size:.67em}.ql-snow .ql-picker.ql-font{width:108px}.ql-snow .ql-picker.ql-font .ql-picker-label:before,.ql-snow .ql-picker.ql-font .ql-picker-item:before{content:"Sans Serif"}.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=serif]:before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]:before{content:"Serif"}.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=monospace]:before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]:before{content:"Monospace"}.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]:before{font-family:Georgia,Times New Roman,serif}.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]:before{font-family:Monaco,Courier New,monospace}.ql-snow .ql-picker.ql-size{width:98px}.ql-snow .ql-picker.ql-size .ql-picker-label:before,.ql-snow .ql-picker.ql-size .ql-picker-item:before{content:"Normal"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=small]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]:before{content:"Small"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=large]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]:before{content:"Large"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=huge]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]:before{content:"Huge"}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]:before{font-size:10px}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]:before{font-size:18px}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]:before{font-size:32px}.ql-snow .ql-color-picker.ql-background .ql-picker-item{background-color:#fff}.ql-snow .ql-color-picker.ql-color .ql-picker-item{background-color:#000}.ql-toolbar.ql-snow{border:1px solid #ccc;box-sizing:border-box;font-family:Helvetica Neue,Helvetica,Arial,sans-serif;padding:8px}.ql-toolbar.ql-snow .ql-formats{margin-right:15px}.ql-toolbar.ql-snow .ql-picker-label{border:1px solid transparent}.ql-toolbar.ql-snow .ql-picker-options{border:1px solid transparent;box-shadow:#0003 0 2px 8px}.ql-toolbar.ql-snow .ql-picker.ql-expanded .ql-picker-label,.ql-toolbar.ql-snow .ql-picker.ql-expanded .ql-picker-options{border-color:#ccc}.ql-toolbar.ql-snow .ql-color-picker .ql-picker-item.ql-selected,.ql-toolbar.ql-snow .ql-color-picker .ql-picker-item:hover{border-color:#000}.ql-toolbar.ql-snow+.ql-container.ql-snow{border-top:0px}.ql-snow .ql-tooltip{background-color:#fff;border:1px solid #ccc;box-shadow:0 0 5px #ddd;color:#444;padding:5px 12px;white-space:nowrap}.ql-snow .ql-tooltip:before{content:"Visit URL:";line-height:26px;margin-right:8px}.ql-snow .ql-tooltip input[type=text]{display:none;border:1px solid #ccc;font-size:13px;height:26px;margin:0;padding:3px 5px;width:170px}.ql-snow .ql-tooltip a.ql-preview{display:inline-block;max-width:200px;overflow-x:hidden;text-overflow:ellipsis;vertical-align:top}.ql-snow .ql-tooltip a.ql-action:after{border-right:1px solid #ccc;content:"Edit";margin-left:16px;padding-right:8px}.ql-snow .ql-tooltip a.ql-remove:before{content:"Remove";margin-left:8px}.ql-snow .ql-tooltip a{line-height:26px}.ql-snow .ql-tooltip.ql-editing a.ql-preview,.ql-snow .ql-tooltip.ql-editing a.ql-remove{display:none}.ql-snow .ql-tooltip.ql-editing input[type=text]{display:inline-block}.ql-snow .ql-tooltip.ql-editing a.ql-action:after{border-right:0px;content:"Save";padding-right:0}.ql-snow .ql-tooltip[data-mode=link]:before{content:"Enter link:"}.ql-snow .ql-tooltip[data-mode=formula]:before{content:"Enter formula:"}.ql-snow .ql-tooltip[data-mode=video]:before{content:"Enter video:"}.ql-snow a{color:#06c}.ql-container.ql-snow{border:1px solid #ccc}:root{--primary: #4f46e5;--primary-light: #818cf8;--primary-dark: #3730a3;--bg-dark: #0f172a;--bg-card: #1e293b;--bg-surface: #f8fafc;--text-primary: #1e293b;--text-secondary: #64748b;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);--shadow-card: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-elevated: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-surface);color:var(--text-primary)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--gradient-dark);position:relative;overflow:hidden}.login-container:before{content:"";position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(79,70,229,.15) 0%,transparent 70%);top:-200px;right:-100px;border-radius:50%}.login-container:after{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(118,75,162,.15) 0%,transparent 70%);bottom:-150px;left:-100px;border-radius:50%}.login-card{width:420px;background:#1e293bcc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:48px 40px;position:relative;z-index:1;box-shadow:var(--shadow-elevated)}.login-card h1{color:#fff;font-size:28px;font-weight:700;text-align:center;margin-bottom:8px;letter-spacing:-.02em}.login-card .subtitle{color:#ffffff80;text-align:center;font-size:14px;margin-bottom:36px}.login-card .ant-input-affix-wrapper{background:#ffffff0d!important;border:1px solid rgba(255,255,255,.1)!important;height:48px;border-radius:12px!important;padding:0 16px!important}.login-card .ant-input-affix-wrapper .ant-input{background:transparent!important;border:none!important;color:#fff!important;height:100%!important;box-shadow:none!important}.login-card .ant-input-affix-wrapper-focused,.login-card .ant-input-affix-wrapper:hover{border-color:var(--primary-light)!important}.login-card .ant-input::placeholder{color:#ffffff4d!important}.login-captcha-row{display:flex;align-items:center;gap:12px;width:100%}.login-captcha-box{width:126px;height:48px;border-radius:12px;overflow:hidden;cursor:pointer;background:#ffffff0f;border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .25s ease;-webkit-user-select:none;user-select:none}.login-captcha-box:hover{border-color:var(--primary-light)!important;box-shadow:0 0 12px #6366f159;transform:translateY(-1px)}.login-captcha-img{width:100%;height:100%;object-fit:fill;display:block}.login-captcha-loading{display:flex;align-items:center;justify-content:center;width:100%;height:100%}.login-captcha-fallback{color:#fff9;font-size:12px;display:flex;align-items:center;gap:4px}.login-card .ant-btn-primary{height:48px;border-radius:12px;font-size:16px;font-weight:600;background:var(--gradient-primary)!important;border:none!important;box-shadow:0 4px 15px #4f46e566;transition:all .3s ease}.login-card .ant-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #4f46e599}.dashboard-layout{min-height:100vh}.dashboard-layout .ant-layout-sider{background:linear-gradient(180deg,#1e293b,#0f172a)!important;box-shadow:4px 0 10px #0000001a}.dashboard-layout .ant-menu.ant-menu-dark{background:transparent!important}.dashboard-layout .ant-menu-dark .ant-menu-item{margin:4px 12px;border-radius:10px;height:44px;line-height:44px}.dashboard-layout .ant-menu-dark .ant-menu-item-selected{background:linear-gradient(135deg,#4f46e54d,#764ba24d)!important;border:1px solid rgba(79,70,229,.3)}.sider-logo{height:64px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:700;letter-spacing:-.02em;border-bottom:1px solid rgba(255,255,255,.06)}.sider-logo .logo-icon{font-size:24px;margin-right:10px;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.dashboard-header{background:#fff!important;padding:0 24px!important;display:flex;align-items:center;justify-content:space-between;box-shadow:0 1px 4px #0000000d;height:64px!important}.header-right{display:flex;align-items:center;gap:16px}.dashboard-content{margin:24px;padding:24px;background:#fff;border-radius:16px;min-height:calc(100vh - 112px);box-shadow:var(--shadow-card)}.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:24px}.stat-card{background:#fff;border-radius:16px;padding:24px;box-shadow:var(--shadow-card);border:1px solid rgba(0,0,0,.04);transition:all .3s ease;position:relative;overflow:hidden}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-elevated)}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px}.stat-card:nth-child(1):before{background:var(--gradient-primary)}.stat-card:nth-child(2):before{background:linear-gradient(135deg,#10b981,#059669)}.stat-card:nth-child(3):before{background:linear-gradient(135deg,#f59e0b,#d97706)}.stat-card:nth-child(4):before{background:linear-gradient(135deg,#ef4444,#dc2626)}.stat-card .stat-value{font-size:32px;font-weight:700;color:var(--text-primary);margin-bottom:4px}.stat-card .stat-label{font-size:14px;color:var(--text-secondary)}.stat-card .stat-icon{position:absolute;top:20px;right:20px;font-size:40px;opacity:.1}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-header h2{font-size:22px;font-weight:700;color:var(--text-primary)}.ant-table-wrapper{border-radius:12px;overflow:hidden}.ant-table-thead>tr>th{background:#f8fafc!important;font-weight:600;color:var(--text-secondary)!important;font-size:13px;text-transform:uppercase;letter-spacing:.05em}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fadeInUp .5s ease-out}@keyframes pulse-glow{0%,to{box-shadow:0 0 5px #4f46e533}50%{box-shadow:0 0 20px #4f46e54d}}@media (max-width: 768px){.stat-cards{grid-template-columns:1fr 1fr}.dashboard-content{margin:12px;padding:16px}}@media print{body{background:#fff!important;color:#000!important}.no-print,.ant-layout-sider,.ant-layout-header,.dashboard-header,.page-header{display:none!important}.ant-layout,.dashboard-layout{background:#fff!important}.dashboard-content{margin:0!important;padding:0!important;height:auto!important;overflow:visible!important}.print-area{width:100%;margin:0;padding:0}.print-card{border:1px solid #ddd!important;box-shadow:none!important;margin-bottom:20px!important;page-break-inside:avoid}.print-option{border:1px solid rgba(0,0,0,.1)}.print-answer-block{border:1px solid #ddd!important;margin-bottom:8px}}.rich-text-content{max-width:100%;overflow-wrap:break-word;word-break:break-word}.rich-text-content table{width:100%;border-collapse:collapse;margin:12px 0;overflow-x:auto;display:block}.rich-text-content th,.rich-text-content td{border:1px solid #d9d9d9;padding:8px 12px}.rich-text-content th{background-color:#fafafa;font-weight:600}.rich-text-content img{max-width:100%;max-height:480px;width:auto;height:auto;border-radius:4px;margin:6px 4px;display:inline-block;vertical-align:middle;box-shadow:0 1px 3px #0000001a;object-fit:contain}.rich-text-content p{margin-bottom:8px}.rich-text-content p:last-child{margin-bottom:0}.ant-modal-body img{max-width:100%;height:auto}.rich-text-content .fill-in-blank,.rich-text-content u,.rich-text-content ins{display:inline-block;min-width:48px;border-bottom:1.5px solid var(--text-primary, #1e293b);text-align:center;margin:0 3px;padding:0 4px;text-decoration:none!important;vertical-align:baseline;white-space:pre-wrap;font-weight:500}