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4px 22px #08254424}.logo{display:flex;align-items:center;gap:12px;min-width:0}.logo-mark{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:linear-gradient(130deg,#1ec8ba,#267ad7);font-size:27px;box-shadow:inset 0 1px 4px #ffffff70}.logo strong{display:block;font-size:23px;letter-spacing:-.6px}.logo small{display:block;color:#a9c9e3;font-size:11px;margin-top:2px}.top-right{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.stat-top{display:flex;align-items:center;gap:7px;padding:8px 13px;background:#ffffff11;border:1px solid #ffffff1b;border-radius:12px}.stat-top strong{font-size:18px;color:#fce5a5}.student-mini{color:#c7ddf3;font-size:12px;text-align:right;max-width:180px}.student-mini b{color:white;display:block}.shell{display:grid;grid-template-columns:228px minmax(0,1fr);min-height:calc(100vh - 80px)}.sidebar{background:#fff;border-right:1px solid var(--border);padding:18px 12px;display:flex;flex-direction:column;gap:5px;box-shadow:5px 0 24px 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#b5e4d5}.quiz-feedback.error{background:#fff5eb;border-color:#f2d7b0}.market-item{display:flex;flex-direction:column;gap:10px}.item-picture{width:100%;height:106px;border-radius:12px;background:linear-gradient(125deg,#e6f2fd,#f1f5fc);display:grid;place-items:center;font-size:48px}.item-picture>span{filter:drop-shadow(2px 9px 5px #6d91a633)}.market-item h3{margin:0;font-size:15px}.price{font-size:23px;font-weight:900;color:#1471b2;letter-spacing:-.6px}.price small{font-size:11px;color:#7187a0;font-weight:500}.market-item p{font-size:12px;color:#61778e;line-height:1.5;flex:1;margin:0}.market-item .btn{width:100%}.service-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.service-card{display:flex;flex-direction:column;gap:12px}.service-card .n{width:39px;height:39px;display:grid;place-items:center;background:#e0f0ff;color:#136ba6;font-size:20px;font-weight:900;border-radius:12px}.service-card h3{margin:0}.service-card 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#d6aa424d}.hotspot.hazard{background:#b83a3a;box-shadow:0 0 0 6px #dc777744}.hotspot::after{content:attr(data-tip);position:absolute;white-space:nowrap;bottom:calc(100% + 13px);padding:6px 9px;font-size:11px;font-weight:750;color:#173653;background:#fff;border-radius:7px;box-shadow:0 4px 10px #00254035;opacity:0;pointer-events:none}.hotspot:hover:after,.hotspot:focus-visible:after{opacity:1}.hotspot.identified::after{opacity:0}.dust-cloud{position:absolute;border-radius:50%;background:radial-gradient(ellipse at center,#b89963a3,#e7b56554 48%,transparent 76%);transform:translate(-50%,-50%);z-index:1;pointer-events:none;mix-blend-mode:screen;transition:opacity .5s}.dust-cloud.done{opacity:0}.panel-cover{position:absolute;inset:6% 14% 9% 12%;border-radius:13px;background:linear-gradient(140deg,#0e1927f2,#283b4bea 55%,#0e1827f7);box-shadow:inset 0 0 0 10px #56677477,0 8px 20px 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14px;font-size:12px;line-height:1.5;color:#42637f}.report-item{padding:11px;border-bottom:1px solid #e6edf3;display:flex;gap:10px;justify-content:space-between;font-size:12px;line-height:1.5}.report-item:last-child{border-bottom:0}.score-ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#11a78f var(--fill),#e6edf2 var(--fill));margin:auto}.score-ring div{border-radius:50%;width:77px;height:77px;background:white;display:grid;place-items:center;font-size:27px;font-weight:950;color:#16466c}.step-badge{border-radius:9px;background:#e6f1fa;color:#1a6d9f;padding:7px 10px;font-size:12px;font-weight:800}.finish{background:linear-gradient(120deg,#e4faee,#ebf6ff);border:1px solid #bcded5;border-radius:14px;padding:17px}.finish h3{color:#136a63}.profile-screen{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:#0e294a}.profile-left{color:#fff;padding:clamp(30px,7vw,90px);display:flex;flex-direction:column;justify-content:center;background:linear-gradient(160deg,#0b2a4e,#105e78)}.profile-left h1{font-size:clamp(36px,4vw,59px)}.profile-left p{line-height:1.7;color:#d6eefa;max-width:480px}.profile-img{max-width:580px;width:100%;border-radius:20px;box-shadow:0 14px 45px #001b3580;margin-top:24px}.profile-right{padding:30px;display:flex;align-items:center;justify-content:center}.profile-form{width:min(450px,100%);background:#fff;border-radius:20px;padding:30px;display:grid;gap:15px;box-shadow:0 10px 45px #00152545}.profile-form h2{margin:0}.profile-form p{margin:0 0 6px;font-size:13px;line-height:1.6;color:#6f8296}.footer-row{margin-top:26px;padding:12px 0;border-top:1px solid var(--border);font-size:11px;color:#8797a8;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}#toast{position:fixed;right:20px;bottom:20px;background:#102f51;color:white;padding:14px 18px;border-radius:13px;box-shadow:0 10px 30px #071c3a5c;font-size:13px;font-weight:650;max-width:min(430px,calc(100vw - 40px));opacity:0;transform:translateY(15px);transition:.2s;pointer-events:none;z-index:50}#toast.show{opacity:1;transform:translateY(0)}.drag-ghost{pointer-events:none;position:fixed;z-index:100;display:flex;align-items:center;justify-content:center;background:#e5f5ff;border:2px solid #21a3b8;border-radius:100px;width:62px;height:62px;font-size:33px;box-shadow:0 7px 20px #032a5b55;transform:translate(-50%,-50%)}.intro-points{display:grid;gap:12px;margin-top:17px}.intro-point{display:flex;gap:11px;font-size:13px;line-height:1.55;color:#557086}.intro-point b{color:#203f5a}.subnav{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-bottom:15px}.subnav .btn{background:#fff;color:#4a6b84;border-color:#d6e4ef}.subnav .btn.active{background:#1479bf;color:white}.faq{line-height:1.65;color:#587086;font-size:13px}.test-row{border-bottom:1px solid #e4edf4;padding:10px 0;display:flex;gap:15px;justify-content:space-between;align-items:center;font-size:13px}.test-row:last-child{border:none}.locked{opacity:.65}.v0-note{background:#f3f6f9;border:1px dashed #d0dce6;border-radius:13px;padding:16px;font-size:13px;color:#617b92;line-height:1.65}@media(max-width:1200px){.work-layout{grid-template-columns:minmax(0,1fr)}.quiz-layout{grid-template-columns:minmax(0,1fr)}.hero-picture{max-width:300px}}@media(max-width:900px){.shell{grid-template-columns:1fr}.sidebar{position:sticky;top:0;display:flex;flex-direction:row;overflow-x:auto;padding:7px;gap:4px;border-bottom:1px solid #dce6f0;border-right:0}.nav{flex:none;width:auto;padding:10px 12px;white-space:nowrap}.nav span{font-size:17px;width:auto}.sidebar-foot{display:none}.content{padding:18px 15px 35px}.topbar{padding:10px 13px;min-height:67px}.logo strong{font-size:18px}.logo-mark{width:40px;height:40px}.top-right{gap:5px}.stat-top{padding:6px 9px;font-size:12px}.stat-top strong{font-size:15px}.student-mini{display:none}.hero{grid-template-columns:1fr}.hero-picture{display:none}.grid4{grid-template-columns:repeat(2,minmax(0,1fr))}.service-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){.logo small{display:none}.logo strong{font-size:16px}.topbar{gap:8px}.top-right{gap:5px}.top-right .stat-top:last-of-type{display:none}.stat-top{padding:6px 8px}.grid2,.grid3,.grid4,.service-cards{grid-template-columns:1fr}.hero{padding:22px 20px;min-height:0}.card{padding:15px}.hotspot{width:29px;height:29px;border-width:2px;font-size:12px;box-shadow:0 0 0 3px #168bd23b}.page-head{margin-bottom:15px}.pc-stage{border-radius:9px}.content{padding:13px 10px 32px}.work-panel{padding:9px}.profile-screen{grid-template-columns:1fr}.profile-left{padding:30px 25px 15px}.profile-left h1{font-size:28px}.profile-left p{font-size:13px}.profile-img{display:none}.profile-right{padding:20px 15px}.profile-form{padding:22px}.logo-mark{display:none}.pill{font-size:10px}.work-panel h3{font-size:15px}}@media print{.topbar,.sidebar,.actions,.btn,#toast{display:none!important}.shell{display:block}.content{max-width:none;padding:0}.card{box-shadow:none}body{background:#fff}}
/* v0.2: 15 cases, OS simulation, security console and mobile layout */
.service-cards.expanded{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.service-cards.expanded .service-card{min-height:245px;display:flex;flex-direction:column;align-items:flex-start}
.service-cards.expanded .service-card p{flex:1}
.service-cards.expanded .service-card .btn{width:100%;white-space:normal}
.case-top{width:100%;display:flex;align-items:center;justify-content:space-between;gap:6px}
.case-layout{align-items:start}
.case-client{background:#f3f8fd;border:1px solid #dceaf5;border-radius:13px;padding:14px 17px}
.case-client h3{margin:0 0 7px;font-size:16px}
.case-client p{font-size:14px;line-height:1.65;margin:0}
.case-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:13px 0}
.case-metrics>div{background:#f7f9fc;border:1px solid #dde7f2;padding:10px;border-radius:11px;min-width:0}
.case-metrics small{display:block;font-size:11px;color:#64748b;margin-bottom:3px}
.case-metrics b{font-size:13px;overflow-wrap:anywhere}
.case-step{margin-bottom:14px}
.case-step h3{font-size:20px;margin:13px 0 5px;color:#12304f}
.case-step p{margin:0;font-size:14px;line-height:1.6}
.case-options{display:grid;gap:9px;margin-top:12px}
.case-option{width:100%;display:flex;align-items:center;gap:12px;text-align:left;min-height:61px;padding:12px;border:1px solid #d5e2ef;border-radius:11px;background:#fff;color:#173450;line-height:1.4;font-size:14px}
.case-option:hover:not(:disabled){border-color:#3b9eeb;background:#f0f8ff}
.case-option.case-done{background:#e9f8f2;border-color:#9bd4b7;opacity:1;color:#086b58}
.case-option .letter{flex:none;display:grid;place-items:center;background:#edf4fd;border-radius:9px;color:#1461a1;width:32px;height:32px;font-size:12px;font-weight:800}
.case-option.case-done .letter{background:#bff0d8;color:#076848}
.case-counter{font-size:12px;color:#436078;margin-top:10px;font-weight:600}
.case-task textarea{min-height:155px}
.case-log{border-top:1px solid #e5ecf2;margin-top:12px;padding-top:12px;display:grid;gap:8px}
.case-log>div{font-size:12px;line-height:1.5;color:#396078}
.case-budget{background:#edf7fe;border:1px solid #dceaf8;padding:11px 14px;border-radius:11px;display:grid;gap:5px}
.case-budget>div,.budget-line{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px}
.virtual-head{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#132f50;color:white;padding:12px 14px;border-radius:11px 11px 0 0}
.virtual-head b{font-size:14px}.virtual-head span{color:#c4dbf0;font-size:11px;text-align:right}
.case-pc{border:1px solid #dbe5ef;border-radius:0 0 12px 12px;overflow:hidden}
.case-pc .hotspot{z-index:5}
.peripheral-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:16px;background:#eaf1f8;border:1px solid #dbe5ef;border-radius:0 0 13px 13px}
.peripheral-item{display:flex;flex-direction:column;align-items:center;background:white;border:1px solid #dbe4ee;border-radius:12px;padding:14px 6px;gap:5px}
.peripheral-item>span{font-size:50px;line-height:1.2}.peripheral-item>b{font-size:15px}.peripheral-item>small{font-size:11px;color:#667994}
.budget-board{padding:18px;background:#ecf4fc;border:1px solid #dbe8f5;border-radius:0 0 13px 13px}
.budget-hero{background:#1268b0;color:white;border-radius:12px;padding:18px;text-align:center;margin-bottom:14px}.budget-hero b{font-size:28px;display:block}.budget-hero small{font-size:12px}
.budget-line{background:white;border:1px solid #dfe7f1;border-radius:8px;padding:11px 12px;margin-bottom:7px}
.privacy-board{padding:30px 20px;text-align:center;border:1px solid #d8e2ef;background:linear-gradient(#f1f7fe,#e7f0fb);border-radius:0 0 13px 13px}
.privacy-symbol{font-size:68px}.privacy-board h3{margin:12px 0}.privacy-board p{line-height:1.7;font-size:13px}
.os-frame{display:grid;grid-template-columns:84px minmax(0,1fr);min-height:362px;border:1px solid #cfdfec;background:#f9fbfe}
.os-side{background:#e5f0fb;display:flex;flex-direction:column;gap:2px;align-items:center;padding:13px 4px;text-align:center;border-right:1px solid #cbdeed}
.os-side span{font-size:22px;margin-top:3px}.os-side small{font-size:10px;color:#46627e;margin-bottom:7px}
.os-main{min-width:0}.os-nav{padding:14px;background:#eef4fc;border-bottom:1px solid #cbd8e7;font-size:12px;font-weight:700;display:flex;justify-content:space-between;gap:10px}.os-nav span{letter-spacing:5px;color:#8196b0}
.sim-inside{padding:11px 13px 16px}.window-title{font-size:14px;font-weight:700;color:#1b3c5b;margin:6px 0 12px}
.sys-line{display:flex;gap:12px;justify-content:space-between;border-bottom:1px solid #e5ebf3;padding:12px 3px;font-size:12px;align-items:center}
.sys-line span{min-width:0;overflow-wrap:anywhere}.sys-line small{font-size:10px;color:#526f8b;white-space:normal;text-align:right}
.drive-bar{background:#d8e5f0;border-radius:20px;height:17px;overflow:hidden;margin-bottom:8px}.drive-bar>div{background:#e09b30;height:100%;border-radius:20px;transition:width .3s}
.sim-alert{background:#e9f5fc;border-left:3px solid #0e89ce;border-radius:7px;padding:12px;margin-top:15px;font-size:12px;color:#295574}
.av-status{background:#e5f7ed;border:1px solid #c5e6d3;padding:13px;border-radius:12px;display:flex;gap:11px;align-items:center}.av-status>span{font-size:34px}.av-status small{display:block;color:#32745b;font-size:11px;margin-top:4px}
.av-threats{border-radius:8px;border:1px solid #f5d39f;background:#fff7e8;margin-top:14px;padding:8px}.av-threats>div{border-bottom:1px solid #f2dbb5;padding:8px;font-size:12px}.av-threats>div:last-child{border:0}
.os-taskbar{background:#123a64;color:#d7e8ff;border-radius:0 0 12px 12px;padding:9px 13px;font-size:11px;display:flex;justify-content:space-between;gap:6px}
.report-case h3{margin:0}.report-case .btn{width:100%}
@media(max-width:1180px){.service-cards.expanded{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.service-cards.expanded{grid-template-columns:1fr}.service-cards.expanded .service-card{min-height:0}.case-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.case-metrics>div{padding:8px 6px}.case-metrics b{font-size:11px}.case-option{font-size:13px;padding:10px}.virtual-head{padding:10px}.os-frame{grid-template-columns:55px minmax(0,1fr);min-height:310px}.os-side span{font-size:18px}.os-side small{font-size:8px}.sys-line{font-size:11px}.sys-line small{font-size:9px}.case-client p{font-size:13px}.virtual-head b{font-size:12px}}