:root{--bg:#f5f7fb;--surface:#fff;--ink:#162033;--muted:#768198;--line:#e8ebf2;--blue:#4f6cf7;--blue-dark:#3857e8;--green:#2bb673;--orange:#ee9b3e;--purple:#8a65dd;--shadow:0 12px 32px rgba(37,51,91,.07);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-size:14px}button,input,select{font:inherit}button{cursor:pointer;border:0}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(79,108,247,.24);outline-offset:2px}.app-shell{min-height:100vh;display:flex}.sidebar{width:248px;background:#0d1526;color:#fff;padding:25px 18px 18px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0}.brand{display:flex;align-items:center;gap:11px;padding:0 10px 30px}.brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(135deg,#6178ff,#9d6ae5);display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 8px 20px #172b7f}.brand strong{font-size:16px;display:block;letter-spacing:.02em}.brand span{display:block;font-size:11px;color:#8d99b3;margin-top:3px}.goal-card{background:linear-gradient(135deg,#1e2b52,#16213c);border:1px solid rgba(255,255,255,.08);border-radius:17px;padding:17px 16px;margin:0 2px 28px}.goal-label{color:#9ba8c6;font-size:11px;letter-spacing:.12em}.goal-score{font-size:34px;line-height:1;margin:11px 0 9px;font-weight:800}.goal-score small{font-size:13px;font-weight:500;color:#aeb8cf}.goal-meta{display:flex;gap:13px;color:#c3cbe0;font-size:11px}.goal-bar{height:5px;border-radius:5px;background:#303e61;margin:17px 0 9px;overflow:hidden}.goal-bar i{display:block;height:100%;background:#6f83ff;border-radius:5px}.goal-card p{margin:0;color:#8f9bb7;font-size:10px}.nav-list{display:grid;gap:5px}.nav-item{background:transparent;color:#aeb8cf;text-align:left;padding:12px 13px;border-radius:11px;display:flex;align-items:center;gap:12px;transition:.18s}.nav-item span{width:16px;text-align:center;font-size:17px}.nav-item:hover{background:#172440;color:#fff}.nav-item.active{background:#253561;color:#fff;box-shadow:inset 3px 0 #7a8cff}.sidebar-footer{margin-top:auto}.mini-tip{display:flex;gap:10px;align-items:flex-start;padding:13px 11px;border-top:1px solid rgba(255,255,255,.1);color:#9eaac3}.mini-tip>span{color:#8b9aff;font-size:18px}.mini-tip b{display:block;font-size:11px;color:#d7def0;margin-bottom:4px}.mini-tip small{display:block;font-size:10px;line-height:1.5}.ghost-button{background:transparent;color:#71809d;font-size:11px;padding:9px 11px}.ghost-button:hover{color:#c6d0e8}.main-content{margin-left:248px;width:calc(100% - 248px);padding:27px 43px 50px;max-width:1540px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:28px}.eyebrow,.panel-kicker{font-size:10px;letter-spacing:.16em;color:#a4aec1;font-weight:700}.topbar h1{margin:5px 0 0;font-size:27px;letter-spacing:-.03em}.top-actions{display:flex;align-items:center;gap:13px}.streak-pill{display:flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:8px 13px;color:#78849b;font-size:12px}.streak-pill b{color:#273550}.flame{color:#f29d40}.avatar{width:34px;height:34px;border-radius:50%;color:#fff;background:#263553;font-size:12px}.secondary-button,.primary-button{border-radius:9px;padding:10px 14px;font-weight:700;font-size:12px}.secondary-button{color:#54627a;background:#fff;border:1px solid var(--line)}.secondary-button:hover{border-color:#c8d0e3;color:var(--blue)}.primary-button{background:var(--blue);color:#fff;box-shadow:0 6px 14px rgba(79,108,247,.23)}.primary-button:hover{background:var(--blue-dark);transform:translateY(-1px)}.view{display:none}.active-view{display:block}.welcome-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.welcome-row h2{font-size:19px;margin:0 0 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small{color:#8d98ab}.session-progress{height:6px;background:#e8ebf3;border-radius:5px;overflow:hidden;flex:1;margin:0 20px}.session-progress i{display:block;background:var(--blue);height:100%;transition:.2s}.timer-badge{background:#fff1ef;color:#dc6659;border:1px solid #f7d7d3;border-radius:7px;padding:8px 10px;font-weight:800;font-size:13px;min-width:65px;text-align:center}.timer-badge.normal{background:#f3f5ff;color:var(--blue);border-color:#dfe4ff}.question-card{background:#fff;border-radius:17px;box-shadow:var(--shadow);padding:29px 31px}.question-meta{display:flex;gap:8px;align-items:center;margin-bottom:18px}.tag{font-size:10px;padding:5px 7px;border-radius:5px;background:#eef1ff;color:#6170de}.tag.muted{background:#f4f5f8;color:#929bad}.question-card h2{font-size:21px;line-height:1.55;margin:0 0 25px;letter-spacing:-.02em}.options-list{display:grid;gap:10px}.option{display:flex;align-items:flex-start;gap:11px;padding:14px 15px;border:1px solid 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16px;border-radius:8px;color:#fff;background:var(--blue);font-size:12px;font-weight:700}.answer-button:disabled{background:#d5d9e3;cursor:not-allowed}.explanation{margin-top:17px;padding:14px 15px;border-radius:10px;background:#f7f9ff;color:#66738d;font-size:11px;line-height:1.65}.result-card{background:#fff;border-radius:17px;padding:35px;text-align:center;box-shadow:var(--shadow)}.result-icon{font-size:38px;color:#efad55}.result-card h2{margin:7px 0;font-size:23px}.result-score{font-size:46px;font-weight:800;color:var(--blue);margin:12px 0 5px}.result-sub{color:#8f9bad;font-size:12px}.result-metrics{display:flex;justify-content:center;gap:40px;margin:25px 0;border-top:1px solid #eef0f4;border-bottom:1px solid #eef0f4;padding:17px}.result-metrics b{display:block;font-size:18px}.result-metrics span{font-size:10px;color:#8f99aa}.bank-actions{display:flex;gap:9px}.upload-button{display:inline-flex;align-items:center;padding:10px 14px;border-radius:9px;background:var(--blue);color:#fff;font-size:12px;font-weight:700;cursor:pointer}.upload-button input{display:none}.bank-info{background:#263653;color:#fff;border-radius:15px;padding:20px 25px;display:grid;grid-template-columns:1fr 1.3fr 1fr 1.5fr;align-items:center;margin-bottom:20px}.bank-info div{border-right:1px solid rgba(255,255,255,.12);padding-left:25px}.bank-info div:first-child{padding-left:0}.bank-info div:last-child{border:0}.bank-info b{font-size:21px;margin-right:7px}.bank-info span{font-size:11px;color:#aeb9ce}.bank-format{display:flex;align-items:center;gap:8px}.bank-format code{font-size:10px;color:#cbd5ff;background:#3a4a72;padding:4px 6px;border-radius:4px}.table-toolbar{display:flex;justify-content:space-between;gap:12px;margin-bottom:17px}.search-box{display:flex;align-items:center;gap:8px;flex:1;border:1px solid var(--line);border-radius:8px;padding:0 10px;color:#9aa4b5}.search-box input{border:0;outline:0;padding:10px 0;width:100%;font-size:12px}.table-toolbar select,.panel-header select{border:1px solid var(--line);border-radius:8px;color:#65728a;background:#fff;padding:0 10px;font-size:11px}.question-table{width:100%;border-collapse:collapse}.question-table th{color:#99a3b4;font-size:10px;font-weight:600;text-align:left;padding:0 10px 12px;border-bottom:1px solid var(--line)}.question-table td{padding:13px 10px;border-bottom:1px solid #f0f2f6;font-size:11px;color:#627087}.question-table td:first-child{color:#25334d;font-weight:600;max-width:470px}.question-table tr:last-child td{border-bottom:0}.type-pill{font-size:10px;padding:4px 6px;border-radius:4px;background:#f2f4f8;color:#7d889a}.status-dot{display:inline-flex;align-items:center;gap:5px;font-size:10px}.status-dot i{width:6px;height:6px;border-radius:50%;background:#d9dee8}.status-dot.good i{background:var(--green)}.status-dot.warn i{background:var(--orange)}.format-details{margin-top:14px;color:#7b879a;font-size:11px}.format-details pre{white-space:pre-wrap;background:#1b263c;color:#d7def1;border-radius:9px;padding:14px;overflow:auto;font-size:11px;line-height:1.6}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:#17243c;color:#fff;padding:11px 17px;border-radius:8px;font-size:12px;opacity:0;pointer-events:none;transition:.25s;z-index:5}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1050px){.sidebar{width:210px}.main-content{margin-left:210px;width:calc(100% - 210px);padding:25px}.stats-grid{grid-template-columns:repeat(2,1fr)}.mode-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.sidebar{position:static;width:100%;height:auto;padding:14px;display:block}.app-shell{display:block}.brand{padding-bottom:14px}.goal-card{display:none}.nav-list{display:flex;overflow:auto}.nav-item{white-space:nowrap;padding:9px 11px}.sidebar-footer{display:none}.main-content{margin:0;width:100%;padding:20px 14px 40px}.topbar{margin-bottom:20px}.top-actions .secondary-button{display:none}.topbar h1{font-size:22px}.streak-pill{display:none}.welcome-row,.section-heading{display:block}.welcome-row .primary-button,.section-heading .primary-button{margin-top:15px}.stats-grid,.dashboard-grid,.bottom-grid,.mode-grid{grid-template-columns:1fr}.quick-actions{grid-template-columns:1fr}.bank-info{grid-template-columns:repeat(2,1fr);gap:18px}.bank-info div{border:0;padding:0}.bank-format{grid-column:span 2}.question-card{padding:21px 17px}.question-card h2{font-size:18px}.question-footer{display:block}.answer-actions{margin-top:13px;justify-content:flex-end}.review-summary{padding:17px}.review-summary div{padding-left:13px}.review-summary strong{font-size:21px}.table-toolbar{display:block}.table-toolbar select{height:38px;margin-top:9px}.question-table-wrap{overflow-x:auto}.question-table{min-width:650px}}