:root{--ink:#173047;--ink-strong:#102538;--muted:#66798b;--brand:#147467;--brand-dark:#0d564d;--brand-soft:#e5f3ef;--orange:#e98048;--surface:#fff;--canvas:#f4f7f5;--canvas-warm:#fbfaf6;--line:#dce6e1;--line-strong:#c9d8d1;--shadow:0 18px 50px #193a3517;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{background:var(--canvas);color:var(--ink);text-rendering:optimizelegibility;margin:0;font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,system-ui,-apple-system,sans-serif}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:not-allowed;opacity:.55}:focus-visible{outline-offset:3px;outline:3px solid #14746757}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.page-width{width:min(1180px,100% - 48px);margin-inline:auto}.brand{color:var(--ink-strong);letter-spacing:.04em;align-items:center;gap:10px;font-size:21px;font-weight:760;display:inline-flex}.brand-mark{background:var(--brand);color:#fff;border-radius:12px 12px 12px 4px;place-items:center;width:38px;height:38px;font-family:Georgia,serif;font-size:21px;line-height:1;display:inline-grid}.button,.ghost-button,.text-button{cursor:pointer;border:0;border-radius:12px;min-height:44px}.button{background:var(--brand);color:#fff;justify-content:center;align-items:center;gap:10px;padding:0 22px;font-weight:700;transition:transform .16s,background .16s;display:inline-flex;box-shadow:0 9px 24px #14746733}.button:hover{background:var(--brand-dark);transform:translateY(-1px)}.button-small{border-radius:10px;min-height:40px;padding-inline:17px}.button-light{color:var(--brand-dark);box-shadow:none;background:#fff}.button-light:hover{background:#f6fbf9}.button-full{width:100%}.ghost-button{border:1px solid var(--line-strong);background:var(--surface);padding:0 16px;font-weight:650}.ghost-button:hover{border-color:var(--brand);color:var(--brand-dark)}.text-button{color:var(--brand);background:0 0;padding:0;font-weight:700}.text-link{color:var(--brand-dark);font-weight:700}.text-link:hover,.panel-head>a:hover{text-underline-offset:4px;text-decoration:underline}.eyebrow,.kicker,.card-label{color:var(--brand);letter-spacing:.12em;text-transform:uppercase;font-size:12px;font-weight:760}.kicker-light{color:#bde7de}.status-badge,.outline-badge{white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;min-height:30px;padding:0 12px;font-size:12px;font-weight:700;display:inline-flex}.status-badge{color:#9d4b20;background:#fff0e7}.outline-badge{border:1px solid var(--line-strong);color:var(--muted);background:#fff}.landing-page{background:var(--canvas-warm);min-height:100vh}.landing-header{justify-content:space-between;align-items:center;min-height:82px;display:flex}.landing-nav{align-items:center;gap:30px;font-size:14px;font-weight:650;display:flex}.landing-nav>a:not(.button):hover{color:var(--brand)}.hero{grid-template-columns:minmax(0,1.08fr) minmax(390px,.92fr);align-items:center;gap:80px;min-height:660px;padding-block:56px 88px;display:grid}.hero-copy h1{max-width:720px;color:var(--ink-strong);letter-spacing:-.045em;margin:18px 0 22px;font-size:clamp(42px,5.1vw,70px);line-height:1.08}.hero-copy>p:not(.quiet-note){max-width:610px;color:var(--muted);margin:0;font-size:18px;line-height:1.85}.hero-actions{align-items:center;gap:24px;margin-top:34px;display:flex}.quiet-note{color:#8795a0;margin:18px 0 0;font-size:12px}.hero-panel{border:1px solid var(--line);box-shadow:var(--shadow);background:#ffffffeb;border-radius:28px;padding:30px;position:relative;overflow:hidden}.hero-panel:before{background:var(--brand-soft);content:"";border-radius:50%;width:210px;height:210px;position:absolute;top:-90px;right:-80px}.hero-panel-head,.hero-panel-foot{justify-content:space-between;align-items:flex-start;gap:20px;display:flex;position:relative}.hero-panel h2{margin:7px 0 0;font-size:24px}.path-preview{margin:34px 0;padding:0;list-style:none;position:relative}.path-preview:before{background:var(--line);content:"";width:1px;position:absolute;top:24px;bottom:24px;left:22px}.path-step{align-items:center;gap:18px;padding:15px 0;display:flex;position:relative}.path-step>span{border:1px solid var(--line);color:#8b9a9f;background:#fff;border-radius:15px;flex:0 0 46px;place-items:center;width:46px;height:46px;font-size:12px;font-weight:800;display:grid}.path-step-active>span{border-color:var(--brand);background:var(--brand);color:#fff}.path-step strong{margin-bottom:4px;display:block}.path-step p{color:var(--muted);margin:0;font-size:13px}.hero-panel-foot{border-top:1px solid var(--line);color:var(--muted);align-items:center;padding-top:22px;font-size:13px}.hero-panel-foot strong{color:var(--ink)}.trust-strip{border-block:1px solid var(--line);background:#fff}.trust-grid{grid-template-columns:repeat(3,1fr);display:grid}.trust-grid>div{border-right:1px solid var(--line);align-items:center;gap:15px;min-height:100px;padding:20px 34px;display:flex}.trust-grid>div:first-child{padding-left:0}.trust-grid>div:last-child{border-right:0}.trust-grid strong{color:var(--brand-dark)}.trust-grid span{color:var(--muted);font-size:13px}.content-section{padding-block:110px}.section-intro{max-width:680px}.section-intro h2,.pilot-inner h2{color:var(--ink-strong);letter-spacing:-.03em;margin:14px 0;font-size:clamp(30px,4vw,48px);line-height:1.2}.section-intro p{color:var(--muted);margin:0;line-height:1.8}.feature-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px;display:grid}.feature-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:250px;padding:30px}.feature-number{color:var(--orange);font-family:Georgia,serif;font-size:28px}.feature-card h3{margin:58px 0 10px;font-size:23px}.feature-card p{color:var(--muted);margin:0;line-height:1.75}.pilot-section{background:var(--brand-dark);color:#fff}.pilot-inner{grid-template-columns:1.2fr .8fr auto;align-items:center;gap:52px;min-height:300px;display:grid}.pilot-inner .eyebrow{color:#a8dcd2}.pilot-inner h2{color:#fff;margin-bottom:0;font-size:38px}.pilot-list{flex-direction:column;gap:10px;display:flex}.pilot-list span{color:#d7eee8;border-left:2px solid #7fc6b8;padding-left:16px}.landing-footer{justify-content:space-between;align-items:center;min-height:140px;display:flex}.landing-footer p{color:var(--muted);font-size:13px}.workspace-shell{background:var(--canvas);grid-template-columns:238px minmax(0,1fr);min-height:100vh;display:grid}.skip-link{z-index:100;background:var(--ink);color:#fff;border-radius:8px;padding:10px 14px;position:fixed;top:10px;left:10px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.sidebar{border-right:1px solid var(--line);background:#fff;flex-direction:column;height:100vh;padding:28px 20px 22px;display:flex;position:sticky;top:0}.sidebar-brand{margin:0 12px 38px}.sidebar-nav{flex-direction:column;flex:1;gap:5px;display:flex}.nav-group-label{color:#98a6af;letter-spacing:.12em;margin:0 12px 8px;font-size:11px;font-weight:750}.nav-group-secondary{margin-top:22px}.nav-item{color:#607184;border-radius:12px;align-items:center;gap:12px;min-height:48px;padding:0 12px;font-size:14px;font-weight:650;display:flex}.nav-item:hover{color:var(--ink);background:#f4f8f6}.nav-item-active{background:var(--brand-soft);color:var(--brand-dark)}.nav-mark{border:1px solid var(--line);background:#fff;border-radius:8px;place-items:center;width:26px;height:26px;font-size:11px;font-weight:800;display:grid}.nav-item-active .nav-mark{color:var(--brand-dark);border-color:#b9dcd4}.sidebar-foot{border-top:1px solid var(--line);align-items:center;gap:10px;padding:16px 12px 2px;display:flex}.sidebar-foot div{flex-direction:column;gap:2px;font-size:11px;display:flex}.sidebar-foot span{color:var(--muted)}.status-dot{background:var(--orange);border-radius:50%;width:9px;height:9px}.workspace-main{min-width:0}.workspace-topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f4f7f5e6;justify-content:space-between;align-items:center;height:76px;padding:0 42px;display:flex}.track-selector{align-items:center;gap:12px;font-size:13px;display:flex}.track-selector>span{color:var(--muted)}.topbar-actions{align-items:center;gap:12px;display:flex}.avatar{background:var(--ink);color:#fff;border-radius:50%;place-items:center;width:40px;height:40px;font-size:13px;font-weight:800;display:grid}.workspace-content{width:min(1260px,100% - 72px);margin-inline:auto;padding-block:42px 70px}.page-stack{flex-direction:column;gap:28px;display:flex}.page-heading h1,.training-header h1{color:var(--ink-strong);letter-spacing:-.035em;margin:8px 0 10px;font-size:clamp(30px,4vw,42px)}.page-heading p{max-width:700px;color:var(--muted);margin:0;line-height:1.7}.heading-row{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.panel,.summary-card,.topic-row{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.panel{padding:26px}.panel h2{margin:6px 0 0;font-size:20px}.panel-head{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.panel-head>a{color:var(--brand);font-size:13px;font-weight:700}.panel-actions{gap:8px;display:flex}.dashboard-grid{grid-template-columns:minmax(0,2fr) repeat(2,minmax(160px,.72fr));gap:18px;display:grid}.primary-task-card{background:var(--brand-dark);color:#fff;border-radius:22px;flex-direction:column;align-items:flex-start;min-height:270px;padding:30px;display:flex}.primary-task-card h2{max-width:540px;margin:10px 0;font-size:clamp(23px,2.5vw,31px);line-height:1.3}.primary-task-card p{color:#b9dcd4;margin:0}.primary-task-card .button{margin-top:auto}.task-progress{color:#d4ebe5;align-items:center;gap:12px;width:100%;margin:24px 0 18px;font-size:12px;display:flex}.progress-track{background:#ffffff2e;border-radius:999px;flex:1;height:7px;overflow:hidden}.progress-track span{background:#fff;height:100%;display:block}.summary-card{flex-direction:column;justify-content:space-between;min-height:180px;padding:24px;display:flex}.summary-card p{color:var(--muted);margin:0;font-size:13px}.summary-value{color:var(--ink-strong);margin-block:18px;font-size:30px;display:block}.two-column-grid{grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:18px;display:grid}.empty-mastery{background:var(--canvas);border-radius:15px;align-items:center;gap:18px;margin:28px 0;padding:20px;display:flex}.empty-ring{width:64px;height:64px;color:var(--brand);border:7px solid #d9e8e3;border-radius:50%;flex:0 0 64px;place-items:center;font-weight:800;display:grid}.empty-mastery p{color:var(--muted);margin:6px 0 0;font-size:13px;line-height:1.5}.skill-preview-list{margin:0;padding:0;list-style:none}.skill-preview-list li{border-top:1px solid var(--line);justify-content:space-between;align-items:center;min-height:48px;font-size:13px;display:flex}.skill-preview-list em{color:#8b9a9f;font-style:normal}.mini-timeline{margin:27px 0 0;padding:0;list-style:none}.mini-timeline li{gap:14px;min-height:78px;display:flex;position:relative}.mini-timeline li:not(:last-child):after{background:var(--line);content:"";width:1px;position:absolute;top:34px;bottom:4px;left:14px}.mini-timeline li>span{z-index:1;border:1px solid var(--line);color:#96a3ac;background:#fff;border-radius:9px;place-items:center;width:29px;height:29px;font-size:11px;display:grid}.mini-timeline-active>span{border-color:var(--brand);background:var(--brand);color:#fff}.mini-timeline p{color:var(--muted);margin:5px 0 0;font-size:12px}.training-page{flex-direction:column;gap:26px;display:flex}.training-header{justify-content:space-between;align-items:flex-end;gap:24px;display:flex}.training-header h1{margin-bottom:0;font-size:34px}.training-meta{color:var(--muted);align-items:center;gap:16px;font-size:13px;display:flex}.training-grid{grid-template-columns:minmax(0,1fr) 280px;gap:20px;display:grid}.question-card{border:1px solid var(--line);background:#fff;border-radius:22px;min-height:590px;padding:clamp(26px,4vw,48px)}.question-labels{gap:8px;display:flex}.question-labels span{background:var(--canvas);color:var(--muted);border-radius:999px;padding:6px 10px;font-size:11px}.question-index{color:var(--brand);letter-spacing:.1em;margin:42px 0 10px;font-size:12px;font-weight:800}.math-question{max-width:850px;color:var(--ink-strong);margin:0;font-family:Georgia,Times New Roman,Songti SC,serif;font-size:clamp(22px,2.5vw,30px);font-weight:600;line-height:1.75}.paper-hint{color:var(--muted);margin:20px 0 0}.option-reveal{margin-top:32px}.option-reveal summary{cursor:pointer;border:1px solid var(--line-strong);border-radius:12px;align-items:center;min-height:44px;padding:0 16px;font-weight:700;display:inline-flex}.answer-options{border:0;gap:10px;margin:20px 0 0;padding:0;display:grid}.answer-options label{cursor:pointer;border:1px solid var(--line);border-radius:12px;align-items:center;gap:12px;min-height:54px;padding:10px 15px;display:flex}.answer-options label:has(input:checked){border-color:var(--brand);background:var(--brand-soft)}.answer-options input{width:18px;height:18px;accent-color:var(--brand)}.question-actions{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;margin-top:34px;padding-top:22px;display:flex}.integration-note{color:#89979f;font-size:12px;line-height:1.5}.question-tools{flex-direction:column;gap:14px;display:flex}.tool-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:22px}.tool-card h2{margin:8px 0 10px;font-size:18px}.tool-card p{color:var(--muted);margin:0;font-size:13px;line-height:1.7}.tool-card-muted{background:#edf4f1}.tool-actions{grid-template-columns:1fr 1fr;gap:8px;display:grid}.tool-actions button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:11px;min-height:44px;font-size:13px;font-weight:650}.tool-actions button:last-child{grid-column:1/-1}.compact-select{color:var(--muted);align-items:center;gap:10px;font-size:12px;display:flex}.compact-select select,.form-field input,.form-field select{border:1px solid var(--line-strong);min-height:46px;color:var(--ink);background:#fff;border-radius:11px;padding:0 13px}.progress-summary{justify-content:space-between;align-items:center;display:flex}.progress-summary strong{margin-top:8px;font-size:22px;display:block}.progress-summary p{color:var(--muted);margin:7px 0 0;font-size:13px}.progress-legend{color:var(--muted);gap:18px;font-size:12px;display:flex}.progress-legend span{align-items:center;gap:7px;display:flex}.legend-dot{border-radius:50%;width:9px;height:9px;display:inline-block}.legend-ready{background:var(--orange)}.legend-empty{background:#cbd6d1}.topic-list{gap:12px;display:grid}.topic-row{grid-template-columns:60px minmax(0,1fr) auto;align-items:center;gap:20px;padding:22px 24px;display:grid}.topic-number{color:#a1b0b5;font-family:Georgia,serif;font-size:20px}.topic-main h2{margin:4px 0;font-size:18px}.topic-main p{color:var(--muted);margin:0;font-size:12px}.topic-state{background:var(--canvas);color:#7e8d96;border-radius:999px;padding:7px 11px;font-size:11px;font-weight:750}.topic-state-ready{color:#9d4b20;background:#fff0e7}.knowledge-grid{grid-template-columns:minmax(0,1fr) 330px;gap:20px;display:grid}.knowledge-path{margin:28px 0 0;padding:0;list-style:none}.knowledge-node{gap:16px;min-height:92px;display:flex;position:relative}.knowledge-node:not(:last-child):after{background:var(--line);content:"";width:2px;position:absolute;top:39px;bottom:4px;left:17px}.knowledge-node>span{z-index:1;border:2px solid var(--line);color:#8c9aa2;background:#fff;border-radius:12px;flex:0 0 36px;place-items:center;width:36px;height:36px;font-size:12px;font-weight:800;display:grid}.knowledge-node-current>span{border-color:var(--orange);color:#9d4b20;background:#fff0e7}.knowledge-node-ready>span{border-color:var(--brand);background:var(--brand);color:#fff}.knowledge-node p{color:var(--muted);margin:6px 0 0;font-size:12px}.node-detail>p{color:var(--muted);line-height:1.7}.detail-list{margin:24px 0}.detail-list>div{border-top:1px solid var(--line);justify-content:space-between;align-items:center;min-height:44px;font-size:13px;display:flex}.detail-list dt{color:var(--muted)}.detail-list dd{margin:0;font-weight:650}.review-tabs{gap:6px;padding-bottom:3px;display:flex;overflow-x:auto}.review-tab{cursor:pointer;min-height:44px;color:var(--muted);white-space:nowrap;background:0 0;border:0;border-radius:11px;align-items:center;gap:8px;padding:0 15px;font-weight:650;display:flex}.review-tab span{background:#e6ece9;border-radius:999px;place-items:center;min-width:22px;height:22px;font-size:10px;display:grid}.review-tab-active{background:var(--brand);color:#fff}.review-tab-active span{background:#ffffff2e}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:340px;display:flex}.empty-state-mark{background:var(--brand-soft);width:64px;height:64px;color:var(--brand);border-radius:20px;place-items:center;font-size:28px;display:grid}.empty-state h2{margin-top:18px}.empty-state p{max-width:450px;color:var(--muted);margin:10px 0 22px;line-height:1.7}.history-placeholder>p{border-top:1px solid var(--line);color:var(--muted);margin:26px 0 0;padding-top:20px;font-size:13px}.plan-grid{grid-template-columns:minmax(0,1fr) 330px;gap:20px;display:grid}.plan-form{flex-direction:column;gap:20px;display:flex}.plan-form fieldset{border:0;margin:0;padding:0}.plan-form legend,.form-field>span{color:var(--muted);margin-bottom:8px;font-size:12px;font-weight:650;display:block}.segmented-options{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.segmented-options label{cursor:pointer;border:1px solid var(--line);border-radius:11px;align-items:center;gap:8px;min-height:46px;padding:0 12px;display:flex}.segmented-options label:has(input:checked){border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark)}.segmented-options input{accent-color:var(--brand)}.form-field input,.form-field select{width:100%}.plan-form .button{align-self:flex-start}.plan-preview ul{margin:26px 0;padding:0;list-style:none}.plan-preview li{border-top:1px solid var(--line);justify-content:space-between;align-items:center;min-height:50px;font-size:13px;display:flex}.plan-preview li span{color:var(--muted)}.budget-note{background:var(--brand-soft);border-radius:13px;padding:17px}.budget-note p{color:var(--muted);margin:6px 0 0;font-size:12px;line-height:1.6}.admin-stats{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.admin-stats .summary-card{min-height:150px}.admin-table-wrap{margin-top:24px;overflow-x:auto}.admin-table{border-collapse:collapse;width:100%;font-size:13px}.admin-table th{border-bottom:1px solid var(--line);color:var(--muted);text-align:left;white-space:nowrap;padding:12px 14px;font-weight:650}.admin-table td{padding:30px 14px}.table-empty{color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex}.admin-module-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.admin-module-grid .panel{flex-direction:column;min-height:210px;display:flex}.admin-module-grid p{color:var(--muted);font-size:13px;line-height:1.7}.admin-module-grid .text-button{align-self:flex-start;margin-top:auto}.auth-page{background:radial-gradient(circle at 20% 20%, #e1f0eb 0, transparent 32%), var(--canvas-warm);place-items:center;min-height:100vh;padding:80px 24px 40px;display:grid}.auth-brand{position:absolute;top:28px;left:36px}.auth-card{border:1px solid var(--line);width:min(460px,100%);box-shadow:var(--shadow);background:#fff;border-radius:24px;padding:38px}.auth-card h1{color:var(--ink-strong);margin:10px 0 8px;font-size:32px}.auth-card>p{color:var(--muted);margin:0 0 28px;font-size:13px;line-height:1.7}.auth-card form{flex-direction:column;gap:18px;display:flex}.code-field{grid-template-columns:1fr auto;align-items:end;gap:10px;display:grid}.auth-terms{text-align:center;margin:20px 0 0!important;font-size:11px!important}@media (width<=1050px){.hero{grid-template-columns:1fr .88fr;gap:40px}.workspace-shell{grid-template-columns:208px minmax(0,1fr)}.workspace-content{width:min(100% - 44px,1260px)}.dashboard-grid{grid-template-columns:1.5fr .75fr}.dashboard-grid .summary-card:last-child{grid-column:2}.primary-task-card{grid-row:span 2}.training-grid{grid-template-columns:minmax(0,1fr) 240px}.pilot-inner{grid-template-columns:1fr .7fr}.pilot-inner .button{grid-column:1/-1;justify-self:start;margin-bottom:38px}}@media (width<=820px){.page-width{width:min(100% - 32px,1180px)}.landing-nav>a:not(.button){display:none}.hero{grid-template-columns:1fr;gap:45px;min-height:auto;padding-block:72px}.hero-copy h1{font-size:clamp(42px,10vw,62px)}.trust-grid{grid-template-columns:1fr;padding-block:10px}.trust-grid>div{border-right:0;border-bottom:1px solid var(--line);min-height:70px;padding-inline:0}.trust-grid>div:last-child{border-bottom:0}.feature-grid{grid-template-columns:1fr}.feature-card{min-height:210px}.feature-card h3{margin-top:35px}.pilot-inner{flex-direction:column;justify-content:center;align-items:flex-start;min-height:440px;display:flex}.pilot-inner .button{margin:0}.workspace-shell{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);height:auto;padding:15px 18px 0;position:static}.sidebar-brand{margin:0 0 14px}.sidebar-nav{scrollbar-width:none;flex-direction:row;padding-bottom:12px;overflow-x:auto}.sidebar-nav::-webkit-scrollbar{display:none}.nav-group-label,.sidebar-foot{display:none}.nav-item{flex:none;min-height:42px;padding-inline:10px}.nav-mark{display:none}.workspace-topbar{height:62px;padding-inline:20px}.workspace-content{width:min(100% - 32px,1260px);padding-block:30px 50px}.two-column-grid,.knowledge-grid,.plan-grid{grid-template-columns:1fr}.training-header{flex-direction:column;align-items:flex-start}.training-grid{grid-template-columns:1fr}.question-tools{grid-template-columns:1fr 1fr;display:grid}.tool-actions{grid-area:1/1/auto/-1}.admin-stats,.admin-module-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=580px){.landing-header{min-height:72px}.landing-nav{gap:10px}.landing-nav>a:not(.button){display:none}.landing-nav .button{padding-inline:13px;font-size:12px}.hero{padding-block:48px 64px}.hero-copy h1{font-size:41px}.hero-copy>p:not(.quiet-note){font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .text-link{align-items:center;min-height:44px;display:flex}.hero-panel{border-radius:22px;padding:22px}.hero-panel-head{flex-direction:column;align-items:flex-start}.content-section{padding-block:78px}.pilot-inner h2{font-size:31px}.landing-footer{flex-direction:column;justify-content:center;align-items:flex-start;gap:15px}.workspace-topbar{gap:10px}.track-selector>span,.outline-badge{display:none}.track-selector strong{font-size:12px}.page-heading h1{font-size:34px}.heading-row{flex-direction:column;align-items:flex-start}.dashboard-grid{grid-template-columns:1fr 1fr}.primary-task-card{grid-area:auto/1/auto/-1}.dashboard-grid .summary-card:last-child{grid-column:auto}.summary-card{min-height:145px;padding:18px}.summary-value{font-size:24px}.panel{padding:20px}.question-card{min-height:540px;padding:24px 20px}.training-meta{flex-wrap:wrap;width:100%}.training-meta .ghost-button{margin-left:auto}.question-actions{flex-direction:column;align-items:stretch}.question-actions .button{width:100%}.question-tools{display:flex}.topic-row{grid-template-columns:42px 1fr;gap:10px;padding:18px}.topic-state{grid-column:2;justify-self:start}.progress-summary{flex-direction:column;align-items:flex-start;gap:20px}.progress-legend{flex-wrap:wrap}.segmented-options{grid-template-columns:1fr}.admin-stats,.admin-module-grid{grid-template-columns:1fr 1fr}.admin-module-grid .panel{min-height:220px}.auth-page{padding-inline:16px}.auth-brand{top:20px;left:20px}.auth-card{padding:28px 22px}.code-field{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}.study-shell{--study-blue:#2788e4;--study-blue-active:#5799e3;--study-notice:#b0e8f3;--study-green:#7aaa61;--study-yellow:#f1cf63;--study-text:#5d5d5d;min-height:100vh;color:var(--study-text);background:#ececec;font-family:Roboto,Helvetica Neue,Arial,Microsoft YaHei,sans-serif}.study-header{background:#fff;border-bottom:1px solid #c8c8c8;height:62px;box-shadow:0 1px 5px #00000029}.study-header-inner{justify-content:space-between;align-items:center;width:min(1080px,100% - 40px);height:100%;margin-inline:auto;display:flex;position:relative}.study-product{white-space:nowrap;align-items:baseline;gap:10px;display:flex}.study-slogan{color:#51a54a;font-size:20px;font-weight:500}.study-product strong{color:#515151;font-size:16px;font-weight:400}.study-header-actions{color:#676767;align-items:center;gap:13px;font-size:14px;display:flex}.subject-switch{color:#2979bb;font-size:16px}.subject-switch:hover{text-decoration:underline}.user-menu{align-items:center;gap:5px;min-height:44px;display:flex}.user-avatar{color:#b8bec2;background:#eceeef;place-items:center;width:31px;height:31px;font-size:27px;display:grid}.phone-icon{color:#818181;font-size:23px}.study-surface{background:#fff;border-radius:6px 6px 0 0;width:calc(100% - 40px);max-width:1400px;min-height:calc(100vh - 70px);margin:8px auto 0;overflow:hidden;box-shadow:0 0 18px #00000047}.study-tabs{background:linear-gradient(90deg, var(--study-blue), #1f7bd5);color:#fff;border-radius:2px 2px 0 0;justify-content:center;align-items:stretch;width:min(1110px,100%);height:74px;margin-inline:auto;display:flex}.study-tab{color:#ffffffe6;justify-content:center;align-items:center;gap:7px;width:96px;min-height:74px;font-size:18px;font-weight:500;display:flex}.study-tab svg{font-size:29px}.study-tab:hover{background:#ffffff14}.study-tab-active{background:var(--study-blue-active);color:#fff}.study-notice{background:var(--study-notice);color:#4c4c4c;justify-content:center;align-items:center;width:min(1110px,100%);min-height:34px;margin-inline:auto;display:flex;position:relative;box-shadow:0 2px 4px #0000002e}.study-notice p{margin:0;font-size:15px}.study-notice strong{color:#333}.study-notice button{cursor:pointer;color:#8b43a0;background:0 0;border:0;place-items:center;width:44px;height:34px;display:grid;position:absolute;right:68px}.workspace-content{width:min(1110px,100%);min-height:calc(100vh - 178px);margin-inline:auto;padding:0}.workspace-content>.page-stack,.workspace-content>.training-page{padding:36px 42px 60px}.module-overview{background:#fff;min-height:calc(100vh - 178px);display:flow-root;position:relative}.ability-overview{grid-template-columns:226px 432px 154px;align-items:start;column-gap:3px;width:818px;margin:31px auto 0;display:grid}.ability-copy{color:#565656;text-align:right;flex-direction:column;justify-self:start;align-items:flex-end;gap:5px;font-size:16px;line-height:1.25;display:flex}.ability-copy strong{white-space:nowrap;font-weight:500}.ability-track{background:#fff;border:1px solid #8d9ba9;height:17px;margin-top:4px;display:flex;overflow:hidden}.ability-mastered{background:var(--study-green);width:70.5%}.ability-to-improve{background:var(--study-yellow);border-left:1px solid #bb9a3d;width:29.5%}.ability-help{color:#626262;text-align:center;flex-direction:column;align-items:center;gap:2px;font-size:13px;line-height:1.35;display:flex}.ability-help svg{color:#4f55a6;flex:none;font-size:20px}.resume-message{color:#666;text-align:center;white-space:nowrap;font-size:25px;line-height:1.5;position:absolute;top:229px;left:50%;transform:translate(-50%)}.resume-message p{margin:0}.enter-test{color:#fff;background:#2175d2;border-radius:32px;width:213px;height:60px;font-size:24px;display:flex;position:absolute;bottom:33px;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 2px 5px #0000003d}.enter-test>span:first-child{flex:1;justify-content:center;align-items:center;padding-left:14px;display:flex}.enter-test-arrow{background:#999;place-items:center;width:55px;font-size:24px;display:grid}.enter-test:hover{background:#3476c6}.enter-test:hover .enter-test-arrow{background:#969696}@media (width>=601px) and (width<=900px){.ability-overview{grid-template-columns:205px minmax(0,1fr) 140px;width:calc(100% - 48px)}.ability-track{width:100%}.ability-help{font-size:12px}}@media (width>=601px) and (width<=700px){.study-slogan{display:none}.study-header-inner{padding-inline:30px 20px}}@media (width<=600px){.study-shell{background:#fff}.study-header{height:78px;box-shadow:0 2px 7px #0003}.study-header-inner{align-items:flex-start;width:100%;padding:18px 7px 0 30px}.study-slogan{display:none}.study-product strong{font-size:16px}.study-header-actions{gap:8px;margin-top:-7px;position:static}.subject-switch{font-size:16px;position:absolute;top:42px;left:47px}.user-menu{font-size:14px}.user-avatar{width:30px;height:30px}.phone-icon{font-size:22px}.study-surface{width:100%;min-height:calc(100vh - 84px);box-shadow:none;border-radius:0;margin-top:6px;padding-top:10px;overflow:visible}.study-tabs{border-radius:2px 2px 0 0;width:calc(100% - 30px);height:88px;box-shadow:0 2px 5px #0000002e}.study-tab{flex-direction:column;gap:5px;width:64px;min-height:88px;font-size:17px}.study-tab svg{font-size:28px}.study-notice{text-align:center;width:calc(100% - 30px);min-height:76px;padding:8px 20px 20px}.study-notice p{max-width:330px;font-size:16px;line-height:1.45}.study-notice button{bottom:1px;left:7px;right:auto}.workspace-content{width:100%;min-height:calc(100vh - 258px)}.workspace-content>.page-stack,.workspace-content>.training-page{padding:28px 18px 48px}.module-overview{min-height:calc(100vh - 258px)}.ability-overview{grid-template-columns:96px minmax(120px,1fr) 46px;align-items:start;column-gap:7px;width:calc(100% - 64px);margin-top:30px}.ability-copy{text-align:center;align-items:center;gap:0;font-size:16px;line-height:1.45}.ability-copy strong{white-space:normal}.ability-track{width:176px;height:16px;margin-top:1px;transform:translate(6px)}.ability-help{text-align:center;flex-direction:column;align-items:flex-start;gap:2px;font-size:14px;line-height:1.45;transform:translate(6px)}.ability-help svg{align-self:center;font-size:18px}.resume-message{font-size:21px;line-height:1.55;top:307px}.enter-test{width:215px;height:60px;font-size:24px;bottom:32px}}.subject-switch{cursor:pointer;background:0 0;border:0;min-height:44px}.account-menu-wrap{position:relative}.user-menu{cursor:pointer;color:inherit;background:0 0;border:0}.study-account-popover{z-index:40;background:#fff;border:1px solid #d8d8d8;border-radius:2px;width:190px;position:absolute;top:47px;right:0;overflow:hidden;box-shadow:0 5px 18px #0003}.study-account-popover>a,.study-account-popover>button{cursor:pointer;color:#555;text-align:left;background:#fff;border:0;border-bottom:1px solid #ededed;align-items:center;gap:12px;width:100%;min-height:43px;padding:0 18px;font-size:14px;display:flex}.study-account-popover>:last-child{border-bottom:0}.study-account-popover>a:hover,.study-account-popover>button:hover{background:#f3f6f8}.study-account-popover svg{color:#777;font-size:20px}.study-modal-backdrop{z-index:100;background:#00000094;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.study-subject-modal{color:#555;text-align:center;background:#fff;border-radius:4px;width:min(500px,100%);padding:36px 42px 31px;position:relative;box-shadow:0 10px 38px #00000052}.study-subject-modal h2{color:#444;margin:0 0 25px;font-size:22px;font-weight:500}.study-subject-modal p{margin:0 0 28px;font-size:17px}.study-modal-close{cursor:pointer;color:#999;background:0 0;border:0;place-items:center;width:36px;height:36px;font-size:20px;display:grid;position:absolute;top:8px;right:8px}.study-modal-confirm{cursor:pointer;color:#fff;background:#64af55;border:0;border-radius:3px;min-width:105px;min-height:42px;font-size:17px}.workspace-content>.reference-panel{background:#fff;border:1px solid #ececec;border-radius:3px;width:100%;min-height:482px;margin:58px 0 30px;box-shadow:0 2px 4px #0000003b}.section-tabs{justify-content:center;align-items:stretch;min-height:88px;display:flex}.section-tab{cursor:pointer;color:#555;background:#fff;border:0;flex-direction:column;justify-content:center;align-items:center;gap:7px;width:110px;min-height:88px;font-size:14px;font-weight:400;display:flex}.section-tab svg{font-size:28px}.section-tab:hover{background:#f5f8fc}.section-tab-active{color:#fff;background:#3e7fd0;box-shadow:0 7px 17px #2d58933b}.section-tab-active:hover{background:#3e7fd0}.category-progress{width:min(770px,76.4% - 28px);margin:22px 0 40px min(262px,23.6%)}.category-progress-row{color:#999;grid-template-columns:minmax(200px,1fr) 62px minmax(180px,300px) 28px;align-items:center;min-height:64px;display:grid}.category-progress-row h2{margin:0;font-size:20px;font-weight:400}.category-level{white-space:nowrap;align-self:center;font-size:15px}.category-bar{background:#fff;border:1px solid #758ba2;height:16px;display:flex;overflow:hidden}.category-bar i{height:100%;display:block}.category-mastered{width:var(--mastered);background:#82ad62}.category-improving{width:var(--improving);background:linear-gradient(90deg,#f3cd53,#fff8dc)}.category-chevron{color:#666;justify-self:end;font-size:24px}.task-progress-view{color:#484848;text-align:center;width:min(640px,100% - 48px);margin:12px auto 55px}.task-progress-view>label{font-size:17px;display:block}.task-progress-view>p{margin:5px 0 4px;font-size:16px}.task-progress-view>select{text-align:center;background:#fff;border:0;border-bottom:1px solid #aaa;width:112px;min-height:38px;font-size:18px}.task-progress-view section{text-align:left;border-top:1px solid #ddd;margin-top:5px;padding:17px 0 20px}.task-progress-view section h2{text-align:center;margin:0 0 12px;font-size:17px}.task-progress-view ul{margin:0;padding-left:20px}.task-progress-view li{font-size:16px;line-height:1.6}.task-progress-view li button{cursor:pointer;color:#4b68bd;background:0 0;border:0}.daily-progress-view{padding:40px 0 70px}.daily-progress-card{text-align:center;background:#fbedd8;border:3px solid #4c8a89;width:min(870px,100% - 80px);min-height:440px;margin-inline:auto;padding:21px 20px 30px}.daily-progress-card h2{margin:0 0 7px;font-size:20px}.daily-progress-card>nav{grid-template-columns:repeat(3,1fr);display:grid}.daily-progress-card>nav button{cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;min-height:43px;font-size:18px}.daily-progress-card>nav .is-active{border-bottom-color:#dc3f62}.daily-progress-card>p{background:#f5f47b;margin:115px 0 20px;display:inline-block}.daily-chart{border-top:1px solid #ddd6c7;padding-top:18px}.daily-chart h3{margin:0 0 16px;font-size:18px}.daily-chart-grid{border-bottom:1px solid #aaa;align-items:flex-end;gap:24px;height:130px;padding:0 35px;display:flex}.daily-chart-grid i{background:#69a85d;flex:1}.daily-chart-days{color:#777;grid-template-columns:repeat(7,1fr);padding:5px 35px 0;font-size:12px;display:grid}.knowledge-map{padding:49px 55px 54px}.knowledge-map h1{color:#555;text-align:center;border-bottom:1px solid #eee;margin:0;padding:0 0 16px;font-size:20px;font-weight:400}.knowledge-flow{color:#202020;grid-template-columns:130px 70px minmax(0,1fr);align-items:center;width:calc(100% - 195px);margin:26px 0 0 195px;font-size:17px;display:grid}.knowledge-root{text-align:center;transform:translateY(-32px)}.knowledge-arrow{color:#4b70bd;justify-self:center;font-size:74px;transform:rotate(90deg)}.knowledge-branches{gap:4px;display:grid}.knowledge-branch{grid-template-columns:70px 102px 67px minmax(0,1fr);align-items:center;gap:8px;display:grid}.knowledge-branch>strong{font-weight:500}.knowledge-branch>svg{color:#4b70bd;font-size:62px}.knowledge-branch p{margin:0;line-height:1.35}.knowledge-formula{font-family:Georgia,Times New Roman,serif;font-size:23px}.review-section-tabs{gap:0}.smart-review{padding:40px 20px 50px}.smart-review h1{color:#df834b;text-align:center;margin:0 0 20px;font-size:26px;font-weight:500}.smart-review-list{border-top:1px solid #ddd}.smart-review-row{cursor:pointer;color:#777;text-align:left;background:#fff;border:0;grid-template-columns:54px minmax(0,1fr) 34px;align-items:center;width:100%;min-height:56px;font-size:18px;display:grid}.smart-review-row:hover{background:#fafafa}.smart-review-row>svg{color:#111;font-size:24px}.review-folder{color:#fff;background:#cfcfcf;border-radius:50%;place-items:center;width:40px;height:40px;font-size:25px;display:grid}.bookmark-view{min-height:75px;padding:32px 20px 2px}.bookmark-view button{cursor:pointer;color:#fff;background:#45acbc;border:0;border-radius:3px;min-width:98px;min-height:42px;position:relative}.bookmark-view button span{background:#4d56af;border-radius:50%;place-items:center;width:22px;height:22px;font-size:12px;display:grid;position:absolute;top:-14px;right:-10px}.test-history-view{padding:50px 20px 45px}.test-filter-tabs{min-height:88px}.test-question-list{color:#aaa;margin-top:22px;font-family:Georgia,Songti SC,serif;font-size:18px}.test-question-list p{margin:0;padding:13px 20px}.plan-modal-screen{min-height:1px}.full-plan{z-index:80;background:#fff;border-radius:5px;padding:83px 16px 18px;position:fixed;inset:31px 32px;overflow:auto;box-shadow:0 16px 44px #00000057}.plan-modal-screen:before{z-index:79;content:"";background:#00000094;position:fixed;inset:0}.full-plan-close{color:#999;place-items:center;width:40px;height:40px;font-size:22px;display:grid;position:absolute;top:8px;right:12px}.full-plan-card{color:#555;text-align:center;border:1px solid #e5e5e5;border-radius:4px;min-height:468px;padding:20px 116px 22px}.full-plan-card>h1{color:#222;border-bottom:2px solid #d33c62;margin:0;padding-bottom:9px;font-size:20px;font-weight:500}.full-plan-card>p{text-align:left}.full-plan-card>p strong{color:#c93457}.plan-callout{color:#dea13b;margin:12px 0 45px;font-size:20px;font-weight:700;text-align:center!important}.milestone-grid{grid-template-columns:repeat(4,1fr);gap:24px;margin-top:15px;display:grid}.milestone-grid article{min-width:0}.milestone-grid h2{margin:0 0 2px;font-size:19px}.milestone-grid h3{color:#777;min-height:38px;margin:0;font-size:17px;font-weight:500}.milestone-stars{color:#3eb7c1;height:46px;font-size:31px}.milestone-grid select{max-width:100%;height:28px}.milestone-grid article>p{min-height:45px;margin:3px 0 2px;font-size:15px;line-height:1.45}.milestone-arrow{color:#111;font-size:30px}.plan-return{color:#fff;background:#64af55;border-radius:28px;justify-content:center;align-items:center;min-width:104px;min-height:52px;font-size:20px;display:inline-flex;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}.test-workspace{background:#e8e8e8;min-height:calc(100vh - 62px)}.reference-test-page{color:#777;background:#e8e8e8;min-height:calc(100vh - 62px);padding-bottom:100px}.test-toolbar{background:#fff;grid-template-columns:40% 20% 40%;align-items:center;height:92px;display:grid}.test-toolbar>button,.test-toolbar>a{color:#888;background:0 0;border:0;justify-self:center;font-size:18px}.test-toolbar>button{cursor:pointer}.test-toolbar>a{transform:translate(-22px)}.test-toolbar>div{flex-direction:column;align-items:center;line-height:1.2;display:flex}.test-toolbar strong{color:#777;font-size:22px;font-weight:400}.test-toolbar span{color:#999;font-size:14px}.test-question-layout{background:#fff;grid-template-columns:535px minmax(0,485px);justify-content:center;gap:60px;width:calc(100% - 40px);min-height:calc(100vh - 254px);margin:0 auto;padding:62px 50px 130px;display:grid;transform:translate(-12px);box-shadow:0 0 18px #0000003d}.test-question-card{background:#ededed;border-radius:6px;align-self:start;min-height:175px;padding:37px 44px 28px;position:relative}.test-question-card>p{margin:0 0 12px;font-family:Georgia,Songti SC,serif;font-size:16px;line-height:1.65}.test-question-card>button{cursor:pointer;color:#5661a9;background:0 0;border:0;font-size:12px;font-weight:700}.test-star{color:#d7d7d7;font-size:30px;position:absolute;top:6px;right:18px}.test-answer-area{align-self:start;font-size:14px;line-height:1.75}.test-answer-area>p{margin:5px 0 9px}.test-answer-area em{color:#d75a5a;font-style:normal}.test-options{margin-top:32px}.test-options summary,.no-idea{cursor:pointer;color:#5684a7;background:#fff;border:1px solid #5088ad;border-radius:4px;justify-content:center;align-items:center;width:100%;min-height:44px;list-style:none;display:flex}.test-options fieldset{border:0;gap:7px;margin:12px 0 0;padding:0;display:grid}.test-options label{border:1px solid #ddd;align-items:center;gap:8px;min-height:39px;padding:7px 10px;display:flex}.no-idea{margin-top:12px}.test-submit-bar{z-index:30;background:#dedede;justify-content:flex-end;align-items:center;gap:80px;height:100px;padding-right:calc(14% + 12px);display:flex;position:fixed;bottom:0;left:0;right:0}.test-submit-bar button{cursor:pointer;color:#fff;background:#67b85c;border:0;border-radius:3px;min-width:138px;min-height:52px;font-size:21px}.test-submit-bar a{color:#4a83b3;font-size:20px}.public-auth-shell{color:#555;background:#e9e9e9;grid-template-rows:62px minmax(0,1fr) 78px;min-height:100vh;font-family:Roboto,Helvetica Neue,Arial,Microsoft YaHei,sans-serif;display:grid}.public-auth-header{background:#fff;border-bottom:1px solid #ccc;justify-content:space-between;align-items:center;height:62px;padding-inline:max(50% - 540px,28px);display:flex;box-shadow:0 1px 5px #00000029}.public-auth-brand{align-items:baseline;gap:11px;display:flex}.public-auth-brand span{color:#51a54a;font-size:20px;font-weight:500}.public-auth-brand strong{color:#515151;font-size:16px;font-weight:400}.public-auth-account{align-items:center;gap:4px;font-size:13px;display:flex}.public-auth-shell>main{align-items:flex-start;display:flex}.public-auth-card{background:#fff;border-radius:5px;width:calc(100% - 40px);max-width:1400px;min-height:443px;margin:8px auto 0;box-shadow:0 5px 17px #00000042}.public-auth-card h1{color:#5d83a2;text-align:center;margin:0 0 15px;font-size:27px;font-weight:400}.login-auth-card{grid-template-columns:430px 430px;justify-content:center;gap:70px;padding:20px 0 50px;display:grid}.login-auth-card>*{transform:translate(35px)}.social-login{text-align:center;border-right:1px solid #e1e8ee;height:264px;padding:0 48px 0 0}.social-login>p{color:#d99b37;margin:5px 0 33px;font-size:16px;font-weight:700}.social-button{cursor:pointer;color:#444;background:#fff;border-radius:3px;align-items:center;width:380px;max-width:100%;height:45px;padding:0 14px;display:flex}.social-button+.social-button{margin-top:19px}.social-button svg{width:43px;font-size:36px}.social-button span{text-align:center;flex:1}.qq-button{border:1px solid #4795cc}.qq-button svg{color:#1b1d27}.wechat-button{border:1px solid #72bd55}.wechat-button svg{color:#55b43d}.mobile-login,.register-form,.reset-form{flex-direction:column;display:flex}.login-auth-card>.mobile-login{width:380px;padding-left:0;transform:translate(108px)}.mobile-login h1{margin-bottom:43px}.mobile-login label,.register-form label,.reset-form label{flex-direction:column;margin-bottom:17px;display:flex}.mobile-login label>span,.register-form label>span,.reset-form label>span{color:#a5a5a5;justify-content:space-between;margin-bottom:5px;font-size:14px;display:flex}.mobile-login label a{color:#ad6cb1}.mobile-login input,.register-form input,.reset-form input{background:#fff;border:1px solid #c9c9c9;border-radius:0;width:380px;max-width:100%;height:47px;padding:0 10px}.mobile-login label:first-of-type input{border-color:#2677b1;box-shadow:0 0 9px #2677b161}.auth-primary-button,.auth-secondary-button{border:1px solid #c9c9c9;border-radius:2px;justify-content:center;align-items:center;width:380px;max-width:100%;min-height:47px;font-size:19px;display:flex}.auth-primary-button{color:#fff;background:#4a82b3;border-color:#4a82b3}.auth-secondary-button{color:#444;background:#fff;margin-top:12px}.public-auth-footer{justify-content:space-between;align-items:center;width:min(1090px,100% - 40px);margin-inline:auto;font-size:12px;display:flex}.public-auth-footer nav{gap:25px;display:flex}.public-auth-footer p{color:#8c8c8c;margin:0}.register-auth-card{grid-template-columns:430px 430px;justify-content:center;gap:48px;padding:20px 0 22px;display:grid}.register-auth-card>*{transform:translate(25px)}.register-form{border-right:1px solid #e1e8ee;padding-right:48px}.register-form label{margin-bottom:12px}.register-form input{height:47px}.register-form label:first-of-type input{border-color:#2677b1;box-shadow:0 0 9px #2677b161}.send-code{cursor:pointer;color:#fff;background:#4c83b3;border:0;border-radius:3px;align-self:flex-start;min-height:35px;margin:-2px 0 14px;padding:0 12px}.register-form>p{color:#aaa;margin:8px 0 0;font-size:12px}.register-social{padding-left:0}.register-social h1{margin-bottom:72px}.reset-auth-card{justify-content:center;padding:0 0 50px;display:flex}.reset-form{width:380px;padding-top:0}.reset-form h1{margin-top:0}.study-shell .page-stack{color:#666}.study-shell .page-heading h1,.study-shell .panel h2{color:#555}.study-shell .eyebrow,.study-shell .card-label{color:#3d7fc8}.study-shell .button{box-shadow:none;background:#3e7fc7}@media (width<=760px){.workspace-content>.reference-panel{width:calc(100% - 30px);margin:29px auto 20px}.progress-section-tabs{grid-template-columns:repeat(3,110px);justify-content:center;display:grid}.progress-section-tabs .section-tab{justify-self:center;width:100px}.progress-section-tabs .section-tab:nth-child(4){grid-column:2}.category-progress{width:calc(100% - 14px);margin:20px 0 40px 15px}.category-progress-row{grid-template-rows:22px 22px;grid-template-columns:minmax(125px,145px) minmax(0,1fr) 18px;column-gap:3px;min-height:58px}.category-progress-row h2{grid-row:1/3;font-size:17px}.category-level{grid-area:1/2;font-size:15px}.category-bar{grid-area:2/2;width:100%;height:16px}.category-progress .category-bar{width:calc(100% - 3px)}.category-chevron{grid-area:1/3/3;font-size:20px}.daily-progress-card{width:calc(100% - 30px);padding-inline:10px}.daily-progress-card>p{margin-top:75px}.knowledge-map{padding:24px 18px 38px}.knowledge-flow{flex-direction:column;align-items:stretch;gap:12px;width:100%;margin:12px 0 0;display:flex}.knowledge-root{font-size:18px;font-weight:600;transform:none}.knowledge-arrow{align-self:center;transform:rotate(180deg)}.knowledge-branches{gap:12px}.knowledge-branch{grid-template-columns:58px minmax(75px,.8fr) 44px minmax(130px,1.4fr);gap:3px;font-size:13px}.knowledge-branch>svg{font-size:38px}.knowledge-formula{font-size:18px}.review-section-tabs .section-tab{width:100px}.smart-review{padding:30px 12px}.smart-review h1{font-size:21px}.smart-review-row{grid-template-columns:46px minmax(0,1fr) 25px;padding-block:7px;font-size:15px;line-height:1.45}.test-filter-tabs .section-tab{width:96px}.test-history-view{padding-inline:5px}.test-question-list p{padding-inline:8px;font-size:16px}.full-plan{padding:50px 8px 8px;inset:10px}.full-plan-card{padding:18px 14px 24px}.plan-callout{margin-bottom:24px;font-size:17px}.plan-return{margin:26px auto 0;position:static;transform:none}.milestone-grid{grid-template-columns:1fr;gap:25px}.milestone-grid article{border-top:1px solid #eee;padding-top:18px}.test-toolbar{height:82px}.test-question-layout{grid-template-columns:1fr;gap:30px;width:100%;min-height:calc(100vh - 224px);padding:32px 18px 130px;transform:none}.test-question-card{padding:38px 24px 24px}.test-submit-bar{justify-content:center;gap:34px;height:80px;padding:0}.test-submit-bar button{min-width:125px;min-height:48px;font-size:18px}.test-submit-bar a{font-size:17px}.public-auth-shell{grid-template-rows:76px minmax(0,1fr) auto}.public-auth-header{height:76px;padding-inline:20px}.public-auth-brand{flex-direction:column;align-items:flex-start;gap:2px}.public-auth-brand span{display:none}.public-auth-brand strong{font-size:16px}.public-auth-card{width:calc(100% - 20px);min-height:0;margin-top:10px}.login-auth-card,.register-auth-card{flex-direction:column;gap:28px;padding:25px 20px 32px;display:flex}.login-auth-card>*{transform:none}.login-auth-card>.mobile-login{width:auto;transform:none}.mobile-login h1{margin-bottom:15px}.register-auth-card>*{transform:none}.social-login,.register-form{border-bottom:1px solid #e1e8ee;border-right:0;padding:0 0 28px}.mobile-login{padding:0}.social-button,.mobile-login input,.register-form input,.reset-form input,.auth-primary-button,.auth-secondary-button{width:100%}.register-social h1{margin-bottom:25px}.reset-auth-card{padding:20px}.reset-form{width:100%}.public-auth-footer{flex-direction:column;align-items:flex-start;gap:18px;padding:24px 0}.public-auth-footer nav{flex-wrap:wrap;gap:12px 20px}}