.hub-icon[data-v-ef3395ab]{display:inline-block;flex:0 0 auto;vertical-align:middle}.hub-icon--tile[data-v-ef3395ab]{overflow:visible;filter:drop-shadow(0 4px 5px rgb(38 57 96 / 11%))}@media(prefers-reduced-motion:reduce){.hub-icon--tile[data-v-ef3395ab]{animation:none!important;transition:none!important}}:root{--hub-purple: #7654e8;--hub-ink: #272939;--hub-muted: #858797;--hub-line: #ececf3;--hub-bg: #f6f7fb;--hub-lilac: #f0ebff}.learning-shell{min-height:100vh;background:var(--hub-bg);color:var(--hub-ink);font:14px/1.65 Segoe UI,Microsoft YaHei,sans-serif;display:block!important}.learning-shell *{box-sizing:border-box}.learning-shell button,.learning-shell input,.learning-shell textarea,.learning-shell select{font:inherit}.learning-shell button{cursor:pointer;transition:.16s;border:1px solid var(--hub-line);border-radius:9px;background:#fff;color:var(--hub-ink);padding:9px 15px;display:inline-flex;align-items:center;justify-content:center;gap:7px}.learning-shell button:hover{border-color:#cbbcfb;color:var(--hub-purple);background:#faf8ff}.learning-shell button:disabled{cursor:not-allowed;opacity:.5}.learning-shell button:focus-visible,.learning-shell a:focus-visible,.learning-shell input:focus-visible,.learning-shell select:focus-visible,.learning-shell textarea:focus-visible{outline:3px solid #b6a1fc;outline-offset:2px}.learning-shell .primary{background:var(--hub-purple);color:#fff;border-color:var(--hub-purple)}.learning-shell .primary:hover{background:#6543d6;color:#fff}.learning-shell .soft{background:var(--hub-lilac);color:var(--hub-purple);border-color:transparent}.learning-shell .danger{color:#c14052}.learning-shell a{color:var(--hub-purple);text-decoration:none}.learning-shell h1,.learning-shell h2,.learning-shell h3,.learning-shell p{margin:0}.learning-shell h1{font-size:25px;letter-spacing:-.6px;line-height:1.4}.learning-shell h2{font-size:18px;line-height:1.5}.learning-shell h3{font-size:15px}.learning-shell small,.learning-shell .muted{color:var(--hub-muted)}.learning-shell small{font-size:12px}.learning-shell .hub-sidebar{width:237px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--hub-line);padding:28px 18px 15px;z-index:30;display:flex;flex-direction:column;overflow:auto}.learning-shell .hub-brand{border:0;background:transparent;justify-content:flex-start;text-align:left;gap:11px;padding:0 10px 26px}.hub-brand b{display:block;font-size:19px;letter-spacing:.5px}.hub-brand small{display:block;font-size:10px;letter-spacing:1.3px;margin-top:2px}.hub-logo{background:var(--hub-purple);color:#fff;font-size:25px;font-weight:900;width:43px;height:43px;display:grid;place-items:center;border-radius:13px;box-shadow:0 6px 15px #7654e828}.learning-shell .nav-caption{font-size:10px;letter-spacing:1.6px;color:#a5a5b5;padding:15px 17px 8px}.hub-sidebar nav section+section{margin-top:9px}.hub-sidebar nav button{display:flex;width:100%;background:none;border:none;justify-content:flex-start;padding:11px 16px;margin:3px 0;color:#838393;font-size:13px}.hub-sidebar nav button.active{background:var(--hub-lilac);color:var(--hub-purple);font-weight:600}.hub-sidebar nav button i{width:5px;height:5px;background:var(--hub-purple);border-radius:50%;margin-left:auto}.hub-sidebar nav button svg{margin-right:8px}.sidebar-note{margin:28px 8px 18px;background:#f8f6fe;border-radius:13px;padding:15px;text-align:left;color:var(--hub-purple)}.sidebar-note b,.sidebar-note small{display:block;font-size:11px;margin-top:7px}.learning-shell .hub-account{border-top:1px solid var(--hub-line);border-radius:0;border-width:1px 0 0;margin-top:auto;justify-content:flex-start;text-align:left;padding:17px 5px 0}.hub-account b,.hub-account small{display:block;font-size:12px}.hub-account svg{margin-left:auto}.avatar,.topbar-avatar{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:12px;background:#eee8ff;color:var(--hub-purple);font-weight:700}.learning-shell .hub-main{margin-left:237px;min-height:100vh;display:flex;flex-direction:column}.learning-shell .hub-topbar{height:77px;padding:0 34px;background:#fff;border-bottom:1px solid var(--hub-line);display:flex;align-items:center;gap:22px;position:sticky;top:0;z-index:20}.topbar-title{font-size:12px;color:#9696a5;display:flex;gap:8px;align-items:center}.topbar-title b{font-weight:500;color:#575869}.topbar-search{margin-left:auto;background:#f7f7fa;display:flex;align-items:center;gap:10px;padding:5px 12px;border-radius:7px;color:#b1afbf;width:255px}.learning-shell .topbar-search input{padding:4px 0;border:0;background:none;font-size:12px;width:100%;outline:none}.topbar-search kbd{background:#fff;border:1px solid #e5e4ed;border-radius:3px;padding:0 3px;font-size:11px}.learning-shell .icon-button{padding:7px;border:0;background:none}.learning-shell .mobile-toggle{display:none}.learning-shell .hub-content{padding:29px 34px 38px;max-width:1640px;width:100%;margin:0 auto;flex:1;min-width:0}.hub-footer{padding:15px 34px;color:#a3a4b4;font-size:11px;display:flex;justify-content:space-between;border-top:1px solid var(--hub-line)}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}.page-heading p{font-size:12px;color:var(--hub-muted);margin-top:7px}.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--hub-purple);margin-bottom:6px!important}.hub-card{background:#fff;border:1px solid #eeeef5;border-radius:15px;padding:23px;min-width:0}.hub-card+.hub-card{margin-top:18px}.card-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:19px}.hub-grid{display:grid;gap:20px}.hub-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.hub-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.hub-split{display:grid;grid-template-columns:minmax(0,1fr) 295px;gap:24px;align-items:start}.hub-split.wide{grid-template-columns:300px minmax(0,1fr)}.hub-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.hub-row.between{justify-content:space-between}.hub-stack{display:grid;gap:16px}.hub-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:20px}.hub-alert{border:1px solid #efdfb0;background:#fffcf4;color:#876a2e;padding:11px 15px;border-radius:9px;margin:12px 0;font-size:13px;white-space:pre-wrap}.hub-alert.error{background:#fff1f2;color:#b33c50;border-color:#f4d8dd}.hub-alert.success{background:#edf9f5;color:#31866d;border-color:#d2eee2}.hub-empty{padding:42px 20px;text-align:center;color:#9494a6;border:1px dashed #dedee9;border-radius:12px;background:#fbfbfe}.hub-empty strong{display:block;color:#606175;margin-bottom:6px}.hub-tag{display:inline-flex;align-items:center;border-radius:5px;font-size:10px;letter-spacing:.3px;padding:3px 8px;background:#f1edff;color:#795cce;white-space:nowrap}.hub-tag.green{background:#e8f7f1;color:#34866c}.hub-tag.orange{background:#fff3e3;color:#b98439}.hub-tag.gray{background:#f0f1f5;color:#858598}.hub-tag.red{background:#fdeef0;color:#bf5767}.hub-tabs{display:flex;gap:7px;margin-bottom:23px;flex-wrap:wrap}.hub-tabs button{background:#fff;border-color:transparent;color:#8d8c9d;font-size:13px}.hub-tabs button.active{background:var(--hub-purple);color:#fff}.hub-field{display:flex;flex-direction:column;gap:7px;color:#6b6d7e;font-size:12px;min-width:0}.learning-shell input:not([type=checkbox]):not([type=radio]),.learning-shell select,.learning-shell textarea{border:1px solid #e4e4ef;border-radius:8px;padding:10px 12px;background:#fff;color:#3a3b4d;width:100%;min-width:0}.learning-shell textarea{resize:vertical;min-height:95px;line-height:1.7}.learning-shell input[type=checkbox],.learning-shell input[type=radio]{accent-color:var(--hub-purple);width:16px;height:16px;flex-shrink:0}.learning-shell .filter-bar{display:flex;gap:12px;align-items:end;flex-wrap:wrap;background:#fff;padding:18px;border-radius:13px;border:1px solid var(--hub-line);margin-bottom:22px}.filter-bar .hub-field{min-width:115px;flex:1}.filter-bar .search-field{flex:2}.filter-bar button{min-height:43px}.learning-shell .hub-check{display:flex;gap:9px;align-items:center;font-size:13px;cursor:pointer}.question-card{margin-bottom:15px}.question-stem{white-space:pre-wrap;font-size:15px;line-height:1.9;margin:16px 0!important;overflow-wrap:anywhere}.question-options{display:grid;gap:8px}.question-option{background:#f8f8fc;border:1px solid transparent;border-radius:8px;padding:11px 15px;display:flex;gap:11px;align-items:flex-start;cursor:pointer;white-space:pre-wrap}.question-option.selected{background:#f1ecff;border-color:#bfaefa}.question-option b{min-width:20px;color:#8a76c3}.question-explanation{background:#f7f5fc;border-left:3px solid #bfa6fb;padding:15px 18px;margin-top:18px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px}.question-explanation strong{display:block;margin-bottom:5px}.hub-resource{padding:0;overflow:hidden;display:flex;flex-direction:column}.resource-cover{height:133px;background:#ece7fa;display:flex;align-items:center;justify-content:space-between;padding:26px;color:#795ebe;position:relative;overflow:hidden}.resource-cover:after{content:"";height:150px;width:150px;border:26px solid #ffffff45;border-radius:50%;position:absolute;right:-28px;bottom:-74px}.resource-cover.video{background:#e5effb;color:#5d8fbf}.resource-cover.textbook{background:#e4f2ec;color:#448c73}.resource-cover.template{background:#fff0df;color:#bf8c4e}.resource-cover b{font-size:27px;line-height:1.3;letter-spacing:2px;max-width:70%;font-weight:600}.resource-cover small{display:block;color:inherit;letter-spacing:1px;font-size:10px;margin-top:7px}.resource-body{padding:20px;flex:1;display:flex;flex-direction:column;gap:10px}.resource-body h3{line-height:1.65}.resource-body p{font-size:12px;color:#9492a3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resource-body .hub-row{margin-top:auto}.resource-body button{font-size:12px;padding:6px 11px}.hub-progress{height:5px;border-radius:9px;background:#eeebf6;overflow:hidden}.hub-progress i{display:block;background:var(--hub-purple);height:100%;border-radius:9px}.hub-modal{position:fixed;inset:0;background:#22203970;z-index:80;display:grid;place-items:center;padding:25px}.hub-dialog{background:#fff;width:min(820px,100%);max-height:90vh;overflow:auto;border-radius:17px;padding:28px;box-shadow:0 20px 90px #1c163b30}.hub-dialog.large{width:min(1100px,100%)}.hub-dialog>header{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.hub-dialog>header button{border:0;padding:5px 12px;font-size:20px}.hub-dialog .sticky-actions{position:sticky;bottom:-28px;background:#fff;padding:18px 0;border-top:1px solid var(--hub-line);margin-bottom:-28px}.learning-shell table{width:100%;border-collapse:collapse;font-size:12px}.learning-shell th{text-align:left;background:#fafafe;color:#9695a6;font-weight:500;padding:13px 15px;border-bottom:1px solid var(--hub-line)}.learning-shell td{padding:16px 15px;border-bottom:1px solid #f2f2f7}.learning-shell td button{padding:5px 9px;font-size:11px}.table-wrap{overflow:auto}.hub-list-item{display:flex;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid #f0eff7;min-width:0}.hub-list-item:last-child{border:0}.hub-list-item>div{min-width:0;flex:1}.hub-list-item p{font-size:12px;color:#9292a4;margin-top:4px}.hub-list-item button{font-size:12px;padding:7px 11px}.hub-list-icon{width:40px;height:40px;background:#f1edfc;color:var(--hub-purple);border-radius:12px;display:grid;place-items:center;flex-shrink:0}.hub-richtext{white-space:pre-wrap;line-height:2;font-size:15px;overflow-wrap:anywhere}.hub-pagination{display:flex;justify-content:center;gap:15px;align-items:center;margin-top:24px;font-size:12px}.hub-loading{color:var(--hub-purple);padding:30px;text-align:center}.learning-shell .content-card,.learning-shell .panel,.learning-shell .homework-list,.learning-shell .homework-detail{background:#fff;border-color:var(--hub-line);border-radius:14px}.learning-shell .hero{background:transparent;color:var(--hub-ink);box-shadow:none;padding:0;margin-bottom:23px;min-height:auto}.learning-shell .hero-art{display:none}.learning-shell .hero h1{font-size:25px}.learning-shell .metric-grid article{background:#fff;border:1px solid var(--hub-line);border-radius:13px;box-shadow:none}.learning-shell .metric-grid strong{color:var(--hub-purple)}.learning-shell .primary-button,.learning-shell button.primary-button{background:var(--hub-purple);border-color:var(--hub-purple);color:#fff}.learning-shell .module-card{box-shadow:none;border:1px solid var(--hub-line)}.learning-shell .toast{position:fixed;bottom:30px;right:35px;z-index:100;background:#3e325f;color:#fff;padding:12px 23px;border-radius:10px;box-shadow:0 5px 25px #0002;max-width:85vw}.learning-shell .nav-scrim{display:none}.learning-shell .content-preview-card{border-color:var(--hub-line)}@media(min-width:1650px){.learning-shell .hub-content{padding:36px 48px}.hub-split{grid-template-columns:minmax(0,1fr) 330px}}@media(max-width:1200px){.learning-shell .hub-sidebar{width:212px;padding-inline:12px}.learning-shell .hub-main{margin-left:212px}.learning-shell .hub-content{padding:24px}.hub-split{grid-template-columns:minmax(0,1fr) 255px;gap:18px}.hub-grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-shell .hub-topbar{padding:0 24px}.sidebar-note{display:none}.hub-brand b{font-size:17px}}@media(max-width:960px){.hub-split,.hub-split.wide{grid-template-columns:1fr}.hub-split>.hub-rail{display:grid;grid-template-columns:1fr 1fr;gap:16px}.hub-rail .hub-card+.hub-card{margin-top:0}.learning-shell .topbar-search{width:190px}.topbar-title>span{display:none}.hub-card{padding:19px}}@media(max-width:700px){.learning-shell .hub-sidebar{transform:translate(-100%);transition:.2s;width:235px}.learning-shell.nav-open .hub-sidebar{transform:translate(0)}.learning-shell .nav-scrim{display:block;position:fixed;inset:0;background:#26213a65;z-index:29;border:0;border-radius:0}.learning-shell .hub-main{margin-left:0}.learning-shell .mobile-toggle{display:flex}.learning-shell .hub-topbar{height:63px;padding:0 17px;gap:12px}.learning-shell .hub-content{padding:22px 16px}.hub-grid.two,.hub-grid.three,.hub-split>.hub-rail{grid-template-columns:1fr}.page-heading{align-items:flex-start;gap:12px}.page-heading h1{font-size:22px}.page-heading>button{font-size:12px;white-space:nowrap}.hub-modal{padding:12px}.hub-dialog{padding:20px}.hub-card{padding:18px}.hub-dialog .sticky-actions{bottom:-20px;margin-bottom:-20px}.learning-shell .topbar-search{width:auto;max-width:250px}.learning-shell .topbar-search input{font-size:11px}.filter-bar .hub-field{min-width:calc(50% - 12px)}.hub-footer{padding:14px 18px}}.learning-shell .page-heading h1{font-size:25px;line-height:1.4}.learning-shell .hub-topbar{box-shadow:none}@media(max-width:760px){.learning-shell .page-heading h1{font-size:22px}}:root{--hub-purple: #2463eb;--hub-ink: #18243d;--hub-muted: #65738a;--hub-line: #dfe6f0;--hub-bg: #f3f6fc;--hub-lilac: #eaf1ff;--hub-glass: rgba(255, 255, 255, .78);--hub-shadow: 0 8px 30px #24447107, 0 1px 2px #24447105}.learning-shell{background:linear-gradient(125deg,#eaf1ff 0,#f5f7fc 38% 78%,#fff5ed);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}.learning-shell button{border-radius:12px;transition:background .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease}.learning-shell button:hover{border-color:#aebfea;color:#194bbd;background:#f1f6ff}.learning-shell button:active:not(:disabled){transform:translateY(1px)}.learning-shell :is(button,a,input,select,textarea):focus-visible{outline:3px solid #477cf0;outline-offset:3px}.learning-shell :is(.primary,.primary-button,button.primary-button){color:#fff;background:linear-gradient(#3275f8,#225ae0);border:1px solid #2158d4;box-shadow:inset 0 1px #ffffff59,0 4px 10px #2463eb22}.learning-shell :is(.primary,.primary-button,button.primary-button):hover{color:#fff;background:linear-gradient(#2469ed,#194fce);border-color:#194fce;box-shadow:inset 0 1px #ffffff50,0 5px 14px #2463eb30}.learning-shell .soft{background:#eaf1ff;border-color:#d4e2ff;color:#1e53bd}.learning-shell .hub-sidebar{inset:14px auto 14px 14px;width:224px;border:1px solid #ffffffd9;border-radius:26px;padding:24px 12px 16px;background:var(--hub-glass);backdrop-filter:blur(28px) saturate(155%);-webkit-backdrop-filter:blur(28px) saturate(155%);box-shadow:inset 0 1px #fff,0 10px 36px #2943770a,0 0 0 1px #26487c06;scrollbar-width:thin}.learning-shell .hub-brand{padding:0 9px 18px;gap:10px}.learning-shell .hub-sidebar{overflow:hidden}.learning-shell .hub-sidebar nav{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}.learning-shell .hub-sidebar :is(.hub-brand,.sidebar-note,.hub-account){flex-shrink:0}.hub-brand b{font-size:17px;letter-spacing:-.3px}.hub-brand small{color:#65738a;font-size:10px;letter-spacing:.4px}.hub-logo{width:41px;height:41px;border-radius:14px;background:linear-gradient(150deg,#5c96ff,#225fe6 70%);border:1px solid #ffffff9c;box-shadow:inset 0 2px 1px #ffffff6e,inset 0 -3px 4px #0c39ab35,0 4px 9px #2362d62b;font-size:24px}.learning-shell .nav-caption{color:#596b85;font-size:11px;letter-spacing:.3px;padding:12px 13px 7px}.hub-sidebar nav section+section{margin-top:5px}.learning-shell .hub-sidebar nav button{border:1px solid transparent;background:transparent;color:#4b5970;font-size:13px;border-radius:14px;padding:8px 10px;gap:11px;margin:2px 0;min-height:46px}.hub-sidebar nav button svg{margin-right:0;flex-shrink:0}.learning-shell .hub-sidebar nav button:hover{background:#ffffffb3;border-color:#ffffffdc}.learning-shell .hub-sidebar nav button.active{background:#ffffffeb;border-color:#fff;box-shadow:0 3px 11px #2543700b,inset 0 1px #fff;color:#164dbd;font-weight:700}.learning-shell .hub-sidebar nav button i{width:4px;height:15px;border-radius:4px}.learning-shell .sidebar-note{margin:20px 12px 17px;padding:14px 0 0;border-top:1px solid #dce5f1;background:transparent;border-radius:0;color:#667389}.sidebar-stage{font-size:12px;font-weight:650}.sidebar-note small{margin-top:3px;font-size:10px}.learning-shell .hub-account{background:transparent;padding:15px 6px 0;gap:9px;min-height:58px}.learning-shell .hub-account>span:nth-child(2){min-width:0}.learning-shell .hub-account b{overflow-wrap:anywhere;font-size:12px}.learning-shell .hub-account small{font-size:10px}.learning-shell :is(.avatar,.topbar-avatar){background:linear-gradient(150deg,#ffe6ba,#ffb273);color:#6d360c;border-radius:50%;border:2px solid white;box-shadow:0 2px 8px #aa63241a}.learning-shell .hub-main{margin-left:250px}.learning-shell .hub-topbar{height:62px;margin:14px 26px 0;padding:0 20px;border:1px solid #ffffffdb;border-radius:22px;top:14px;gap:14px;background:var(--hub-glass);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%);box-shadow:inset 0 1px #fff,0 6px 20px #203c6207}.topbar-title{color:#596b85;font-size:12px}.topbar-title b{color:#33435c;font-weight:600}.learning-shell .topbar-search{border:1px solid #e2e8f1;border-radius:13px;background:#f5f8fcbf;color:#596b85;min-width:0;width:235px}.learning-shell .hub-topbar .topbar-search input:not([type]){background:transparent;border:0;border-radius:0;padding:5px 0}.learning-shell .topbar-search:focus-within{border-color:#5786ed;box-shadow:0 0 0 3px #2463eb12}.learning-shell .topbar-search input:focus-visible{outline:0}.learning-shell .surface-toggle{padding:7px 10px;font-size:11px;min-height:36px;color:#48617f;border:1px solid #ffffff;background:#ffffff91;box-shadow:inset 0 1px #fff,0 2px 6px #203c6208;white-space:nowrap}.learning-shell .hub-topbar>.icon-button{padding:3px;flex-shrink:0}.learning-shell .hub-content{padding:30px 26px 38px}.learning-shell .hub-content .page-heading{margin-bottom:25px}.learning-shell .hub-content .page-heading h1{color:var(--hub-ink);font-size:28px;line-height:1.4;letter-spacing:-.7px;font-weight:750}.learning-shell .hub-content .page-heading p{font-size:13px;color:#65738a}.learning-shell .eyebrow{display:none}.learning-shell :is(.hub-card,.content-card,.panel,.homework-list,.homework-detail){border-radius:20px;border:1px solid #e3e9f2;background:#fff;box-shadow:var(--hub-shadow)}.learning-shell .hub-card h2{font-size:17px}.learning-shell .hub-grid>.hub-card{margin-top:0}.learning-shell .filter-bar{border-radius:18px;background:#ffffffed;border-color:#e3e9f2;box-shadow:var(--hub-shadow)}.learning-shell :is(input:not([type=checkbox]):not([type=radio]),textarea,select){border-color:#dce4f0;border-radius:11px;color:#253750;background:#fff}.learning-shell .hub-field{color:#4c5d75;font-size:13px}.learning-shell .hub-tabs{padding:5px;background:#e7edf6;border:1px solid #dde5f0;border-radius:15px;width:fit-content;max-width:100%;gap:3px}.learning-shell .hub-tabs button{background:transparent;color:#5f6e84;border:1px solid transparent;padding:8px 13px}.learning-shell .hub-tabs button.active{background:#fff;border-color:#fff;color:#1e58d0;box-shadow:0 2px 7px #2b477419;font-weight:650}.learning-shell .hub-tag{background:#eaf1ff;color:#2453ae;font-size:11px;border-radius:7px;letter-spacing:0}.learning-shell .hub-tag.green{color:#10765b;background:#dff6ed}.learning-shell .hub-tag.orange{color:#9b4c13;background:#fff0dc}.learning-shell .hub-tag.gray{color:#5e6d83;background:#f0f3f8}.learning-shell .hub-tag.red{color:#b23451;background:#ffe7ed}.learning-shell .hub-empty{background:#f9fbff;color:#687890;border-color:#d4dfed;border-radius:18px}.learning-shell .hub-empty strong{color:#384d6a}.learning-shell .question-option{border-radius:12px;background:#f5f8fd}.learning-shell .question-option:hover{background:#eef4ff}.learning-shell .question-option.selected{background:#eaf2ff;border-color:#6d98f4}.learning-shell .question-option b{color:#285ba9}.learning-shell .question-explanation{background:#eff8f4;border-color:#17a77a;border-radius:0 12px 12px 0}.learning-shell .hub-resource{padding:0}.learning-shell .resource-cover{background:#fff0e5;color:#804725;height:134px;padding:25px}.learning-shell .resource-cover:after{display:none}.learning-shell .resource-cover.video{background:#e0f5ed;color:#12654e}.learning-shell .resource-cover.textbook{background:#e5efff;color:#254f9a}.learning-shell .resource-cover.ppt{background:#eee8ff;color:#603c9d}.learning-shell .resource-cover.tone-blue{background:#e5efff;color:#254f9a}.learning-shell .resource-cover.tone-violet{background:#eee8ff;color:#603c9d}.learning-shell .resource-cover.tone-rose{background:#ffebf1;color:#9f3755}.learning-shell .resource-cover.tone-orange{background:#ffecd9;color:#98491c}.learning-shell .resource-cover.tone-teal{background:#dff5f0;color:#136b61}.learning-shell .resource-cover.tone-green{background:#e8f4da;color:#456b1b}.learning-shell .resource-cover.tone-amber{background:#fff3d2;color:#81551b}.learning-shell .resource-cover.tone-cyan{background:#e0f4ff;color:#226886}.learning-shell .resource-cover b{font-size:24px;letter-spacing:-1px;font-weight:750}.learning-shell .resource-cover small{font-size:11px;letter-spacing:.3px}.learning-shell .resource-body p{color:#63728b;font-size:13px}.learning-shell .resource-body>small{font-size:11px}.learning-shell .hub-list-icon{background:transparent;border-radius:13px}.learning-shell .hub-progress{background:#e5ecf7;height:7px}.learning-shell .hub-progress i{background:linear-gradient(90deg,#2471fa,#39b0fa)}.learning-shell .hub-modal{background:#172b4e3d;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}.learning-shell .hub-dialog{border-radius:26px;border:1px solid #ffffffd4;background:#fffffff7;box-shadow:0 24px 90px #162c5740,inset 0 1px #fff}.learning-shell th{color:#607089;background:#f5f8fc}.learning-shell td{border-color:#eaf0f6}.learning-shell .hub-footer{border:0;color:#596b85;font-size:11px}.learning-shell .hub-content .prep-banner{background:#e2f4f0;border:1px solid #cfebe2;border-radius:20px;color:#174f42}.learning-shell .hub-content .prep-banner h2{color:#164b3f}.learning-shell .hub-content .prep-banner p{color:#477365}.learning-shell .hub-content .schedule-prep p{color:#61718a}.learning-shell .hub-content .chapter-choices{background:#f5f8fd;border-radius:14px}.learning-shell .hub-content .exam-preview{background:#edf8f2;border-color:#b5ddca;border-radius:16px}.learning-shell .hub-content .exam-step b{background:#eaf1ff;color:#225dc7}.learning-shell .hub-content .answer-map button.filled{background:#e5f4ed;color:#187052;border-color:#b6dacc}.learning-shell .hub-content .answer-map button.current{background:#2463eb;color:#fff;border-color:#2463eb}.learning-shell .hub-content .report-banner{background:#e7f0ff;border-color:#d4e4ff;border-radius:21px}.learning-shell .hub-content .report-banner p{color:#4f6a91}.learning-shell .hub-content .topic-row p{color:#61718a}.learning-shell .hub-content .chat-layout{border-color:#dde6f1;border-radius:24px;box-shadow:var(--hub-shadow)}.learning-shell .hub-content .chat-sidebar{border-color:#e4ebf4}.learning-shell .hub-content .chat-panel>header h2{color:var(--hub-ink)}.learning-shell .hub-content .chat-search{background:#f3f7fd;color:#596b85}.learning-shell .hub-content .chat-sidebar button.active,.learning-shell .hub-content .chat-sidebar .conversation.selected{background:#eef4ff}.learning-shell .hub-content .chat-messages{background:#f3f6fc}.learning-shell .hub-content .chat-bubble{color:#2b405d;border:1px solid #e0e7f1;border-radius:4px 17px 17px}.learning-shell .hub-content .chat-message.mine .chat-bubble{background:#2869eb;border-color:#2869eb;color:#fff;border-radius:17px 4px 17px 17px}.learning-shell .hub-content .chat-welcome{background:#f5f8fe;color:#526985}.learning-shell .hub-content .chat-welcome h2{color:#314969}.learning-shell .hub-content .attach-button{color:#3164aa}.learning-shell .hub-content .chat-composer{border-color:#e0e8f3}.learning-shell .hub-content .help-tip b{color:#b65323;font-weight:700}.learning-shell .hub-content .help-tip p{color:#5e708a}.learning-shell .hub-content .feedback-block>b{color:#2453ae}.learning-shell .hub-content .feedback-block>p{color:#5c6f89}.learning-shell .hub-content .report-banner h2{color:var(--hub-ink)}.learning-shell .hub-content .report-score small{color:#865b1b}.learning-shell .hub-content .chat-context{background:#e9f0fa;color:#526985}.learning-shell .hub-content .chat-sidebar .conversation{color:var(--hub-ink);border-bottom-color:#e8edf5}.learning-shell .hub-content .chat-sidebar .conversation small,.learning-shell .hub-content .chat-message small,.learning-shell .hub-content .chat-composer small{color:#5c6f89}.learning-shell .hub-content .unread{background:#2463eb;color:#fff}.learning-shell .hub-content .records-stats b{color:#2463eb}.learning-shell .hub-content .records-stats span,.learning-shell .hub-content .selection-dock>span{color:#5c6f89}.learning-shell .vivid-dashboard .calendar-card{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}.learning-shell[data-surface=solid] :is(.hub-sidebar,.hub-topbar,.surface-toggle,.hub-dialog){background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none;border-color:#dce5f0}.learning-shell[data-surface=solid] .hub-modal{backdrop-filter:none;-webkit-backdrop-filter:none}.learning-shell[data-surface=solid] .vivid-dashboard :is(.action-route,.dashboard-date){background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){.learning-shell :is(.hub-sidebar,.hub-topbar){background:#fafcff}}@media(hover:hover){.learning-shell .hub-sidebar nav button:hover>svg{transform:translateY(-1px)}}@media(min-width:1650px){.learning-shell .hub-content{padding:36px 42px}.learning-shell .hub-topbar{margin-inline:42px}}@media(max-width:1200px){.learning-shell .hub-sidebar{width:210px;inset-inline-start:10px;padding-inline:10px}.learning-shell .hub-main{margin-left:230px}.learning-shell .hub-content{padding:26px 20px}.learning-shell .hub-topbar{margin-inline:20px;padding:0 14px}.learning-shell .hub-brand{padding-inline:5px;gap:8px}.hub-brand b{font-size:16px}.learning-shell .hub-sidebar nav button{padding-inline:8px;gap:9px}.learning-shell .hub-topbar .topbar-search{width:195px}}@media(max-width:760px){.learning-shell .hub-content .page-heading h1{font-size:24px}.learning-shell .hub-content .page-heading p{font-size:12px}.learning-shell .surface-toggle span{display:none}.learning-shell .surface-toggle{padding:8px}}@media(max-width:700px){.learning-shell .hub-sidebar{width:246px;inset:10px auto 10px 10px;transform:translate(calc(-100% - 12px));border-radius:24px;background:#f9fbfff2;visibility:hidden}.learning-shell.nav-open .hub-sidebar{transform:translate(0);visibility:visible}.learning-shell .hub-main{margin-left:0}.learning-shell .hub-topbar{margin:10px 12px 0;top:10px;height:58px;padding:0 10px;gap:6px;border-radius:19px}.learning-shell .hub-topbar .topbar-search{width:auto;flex:1;padding:4px 8px;gap:5px}.learning-shell :is(input:not([type=checkbox]):not([type=radio]),select,textarea),.learning-shell .hub-topbar .topbar-search input{font-size:16px}.learning-shell .topbar-search kbd,.learning-shell .topbar-avatar{display:none}.learning-shell .hub-content{padding:23px 16px 30px}.learning-shell .hub-topbar .mobile-toggle{padding:7px}.learning-shell .hub-content .page-heading{flex-wrap:wrap;gap:14px}.learning-shell .hub-tabs button{padding:7px 10px;font-size:12px}.learning-shell .hub-dialog{border-radius:22px}.learning-shell .nav-scrim{background:#102d5047}.learning-shell .hub-footer{gap:10px;font-size:10px}}@media(prefers-reduced-motion:reduce){.learning-shell *,.learning-shell *:before,.learning-shell *:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}.learning-shell button:active:not(:disabled),.learning-shell .hub-sidebar nav button:hover>svg{transform:none}}@media(prefers-reduced-transparency:reduce){.learning-shell :is(.hub-sidebar,.hub-topbar,.hub-dialog){background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}.learning-shell .hub-modal{backdrop-filter:none;-webkit-backdrop-filter:none}.learning-shell .vivid-dashboard :is(.action-route,.dashboard-date){background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}}.learning-shell{background:radial-gradient(circle at 92% -8%,rgba(46,107,255,.14),transparent 24rem),radial-gradient(circle at 8% 100%,rgba(54,211,167,.08),transparent 22rem),#f7f9fc}.learning-shell .hub-sidebar{background:linear-gradient(164deg,#142348,#1b2f64 58%,#213b75);border:0;box-shadow:0 18px 42px #12234b3d,inset -1px 0 #ffffff14}.learning-shell .hub-brand,.learning-shell .hub-brand b,.learning-shell .hub-brand small,.learning-shell .hub-account,.learning-shell .hub-account b,.learning-shell .hub-account small{color:#f8fbff}.learning-shell .hub-brand small,.learning-shell .hub-account small{color:#e9f1ffad}.learning-shell .hub-logo{background:linear-gradient(145deg,#4e86ff,#2e6bff 60%,#36d3a7 140%);border-color:#ffffff3d;box-shadow:0 8px 20px #1562eb61,inset 0 1px #ffffff73}.learning-shell .nav-caption{color:#e1ebff85;letter-spacing:.08em}.learning-shell .hub-sidebar nav button{color:#f1f6ffb8}.learning-shell .hub-sidebar nav button:hover{color:#fff;background:#ffffff1a;border-color:#ffffff14}.learning-shell .hub-sidebar nav button.active{color:#fff;background:linear-gradient(90deg,#2e6bffeb,#3d82ff9e);border-color:#ffffff26;box-shadow:0 8px 18px #0f276447,inset 0 1px #ffffff2e}.learning-shell .hub-sidebar nav button i{background:#36d3a7;box-shadow:0 0 0 4px #36d3a726}.learning-shell .sidebar-note{color:#e1ebffc2;border-top-color:#ffffff24}.learning-shell .hub-account{border-top-color:#ffffff24}.learning-shell .hub-topbar{background:#ffffffe6;border-color:#fffffff5;box-shadow:0 10px 28px #1b366012,inset 0 1px #fff}.learning-shell .topbar-title{color:#7a88a0}.learning-shell .topbar-title b{color:#17213b}.learning-shell .topbar-search{background:#f1f5fb;border-color:#e0e8f3}.learning-shell .topbar-search:focus-within{border-color:#2e6bff;box-shadow:0 0 0 4px #2e6bff1f}.learning-shell .surface-toggle{color:#234fba;background:#eef4ff;border-color:#dfeaff}.learning-shell .hub-content .page-heading h1{color:#17213b;font-size:clamp(28px,3vw,38px);letter-spacing:-1.1px}.learning-shell .hub-content .page-heading p{color:#63708a}.learning-shell .hub-card{box-shadow:0 10px 28px #1b36600f,inset 0 1px #fff}.learning-shell .hub-card:hover{border-color:#cbdaf2;box-shadow:0 16px 34px #1b36601a,inset 0 1px #fff}.learning-shell .vivid-dashboard .dashboard-action{border-color:#ffffffe6;box-shadow:0 14px 28px #2b508e1f,inset 0 1px #ffffffc7}.learning-shell .vivid-dashboard .metric-card{border-color:#ffffffeb;box-shadow:0 8px 20px #1b36600f}.learning-shell .vivid-dashboard .metric-card:hover{transform:translateY(-3px);box-shadow:0 14px 26px #1b36601f}.learning-shell .vivid-dashboard .dashboard-shortcut:focus-visible,.learning-shell .vivid-dashboard .dashboard-resource:focus-visible{outline:3px solid #36d3a7;outline-offset:3px}@media(max-width:700px){.learning-shell .hub-sidebar{background:linear-gradient(164deg,#142348,#1b2f64 58%,#213b75)}}.learning-shell .desktop-toggle[data-v-7a96bc38]{display:inline-flex;min-width:44px;min-height:44px;align-items:center;justify-content:center}@media(min-width:701px){.learning-shell.desktop-nav-collapsed .hub-sidebar[data-v-7a96bc38]{display:none}.learning-shell.desktop-nav-collapsed .hub-main[data-v-7a96bc38]{margin-left:0;width:100%}}@media(max-width:700px){.learning-shell .desktop-toggle[data-v-7a96bc38]{display:none}}.learning-shell.classroom-focus .topbar-search[data-v-7a96bc38],.learning-shell.classroom-focus .hub-footer[data-v-7a96bc38]{display:none}.hub-login-page[data-v-d1530885]{--login-blue: #2463eb;min-height:100vh;display:grid;grid-template-columns:1.08fr 1fr;background:radial-gradient(ellipse at 12% 70%,#dcecff 0,transparent 46%),radial-gradient(ellipse at 94% 18%,#e4f6f2 0,transparent 36%),#f5f8fd;color:#1e304a;font-family:PingFang SC,Microsoft YaHei,sans-serif}.hub-login-story[data-v-d1530885]{position:relative;padding:42px 8% 30px 11%;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh;box-sizing:border-box}.hub-login-brand[data-v-d1530885]{display:flex;align-items:center;gap:13px;font-size:19px;font-weight:750}.hub-login-brand>b[data-v-d1530885]{position:relative;background:linear-gradient(145deg,#4b85ff,#1758e8);color:#fff;width:45px;height:45px;border-radius:15px;display:grid;place-items:center;font-size:23px;border:1px solid #ffffffa8;box-shadow:inset 0 1px 1px #ffffff80,0 5px 12px #2463eb24}.hub-login-brand>b>span[data-v-d1530885]{position:absolute;right:-3px;top:-3px;width:12px;height:12px;border-radius:50%;border:3px solid #f5f8fd;background:#ff713d}.hub-login-brand small[data-v-d1530885]{display:block;font-size:11px;color:#596b85;font-weight:400;margin-top:5px}.hub-login-intro[data-v-d1530885]{padding:48px 0 22px;max-width:530px}.hub-login-eyebrow[data-v-d1530885]{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:#526984;font-weight:600}.hub-login-eyebrow i[data-v-d1530885]{width:7px;height:7px;border-radius:50%;background:#16b89a;box-shadow:0 0 0 4px #16b89a14}.hub-login-intro h1[data-v-d1530885]{font-size:clamp(31px,3.5vw,52px);line-height:1.45;letter-spacing:-2px;margin:16px 0 15px;font-weight:800}.hub-login-intro>p[data-v-d1530885]{line-height:1.9;color:#5c6f89;font-size:14px;max-width:360px;margin:0}.hub-login-art[data-v-d1530885]{position:relative;isolation:isolate;margin-top:26px;padding:39px 14px 45px;max-width:415px}.hub-login-tray[data-v-d1530885]{position:relative;display:flex;justify-content:space-around;gap:20px;padding:28px 24px 23px;border:1px solid #fff;border-radius:34px;background:linear-gradient(145deg,#ffffffdb,#ffffff59);box-shadow:inset 0 1px 2px #fff,0 17px 38px #1c4b9410,0 2px 2px #31599209;backdrop-filter:blur(24px) saturate(135%);-webkit-backdrop-filter:blur(24px) saturate(135%);transform:rotate(-4deg)}.hub-login-app[data-v-d1530885]{display:flex;flex-direction:column;align-items:center;gap:12px;transform:rotate(4deg)}.hub-login-app-2[data-v-d1530885]{transform:rotate(4deg) translateY(-10px)}.hub-login-app>span[data-v-d1530885]{font-size:12px;font-weight:600;color:#3f526b;white-space:nowrap}.hub-art-orbit[data-v-d1530885]{position:absolute;z-index:-1;border-radius:50%}.hub-art-orbit-one[data-v-d1530885]{width:136px;height:136px;background:linear-gradient(145deg,#ffb182,#ff713d);right:-4px;top:0;box-shadow:inset 0 2px 5px #ffffff80}.hub-art-orbit-two[data-v-d1530885]{width:82px;height:82px;background:linear-gradient(145deg,#7ae6d4,#10b6a3);left:-7px;bottom:27px;box-shadow:inset 0 2px 4px #ffffff90}.hub-login-art-note[data-v-d1530885]{position:relative;width:max-content;max-width:100%;display:flex;align-items:center;gap:11px;padding:10px 15px 10px 10px;margin:13px 0 0 43px;border:1px solid #fff;border-radius:20px;background:#ffffffdb;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 10px 25px #385d8b0d,inset 0 1px #fff;font-size:11px;color:#536984}.hub-note-dot[data-v-d1530885]{width:6px;height:6px;border-radius:50%;background:#16b89a;margin-left:4px}.hub-art-spark[data-v-d1530885]{position:absolute;width:12px;height:12px;background:#2463eb;clip-path:polygon(50% 0,65% 35%,100% 50%,65% 65%,50% 100%,35% 65%,0 50%,35% 35%)}.hub-art-spark-one[data-v-d1530885]{top:4px;left:62px}.hub-art-spark-two[data-v-d1530885]{bottom:26px;right:11px;background:#ff713d;width:18px;height:18px}.hub-login-footer[data-v-d1530885]{font-size:11px;color:#5c6f89;margin:0}.hub-login-form-wrap[data-v-d1530885]{display:grid;place-items:center;padding:45px 10% 45px 4%;box-sizing:border-box}.hub-login-glass[data-v-d1530885]{width:100%;max-width:454px;padding:8px;box-sizing:border-box;border:1px solid #ffffffeb;border-radius:32px;background:#ffffff5c;box-shadow:0 24px 70px #2346720b,inset 0 1px #fff;backdrop-filter:blur(24px) saturate(140%);-webkit-backdrop-filter:blur(24px) saturate(140%)}.hub-login-form[data-v-d1530885]{padding:32px;border:1px solid #fff;border-radius:25px;background:#fffffff5;box-shadow:0 2px 6px #224b7405}.hub-login-form-heading[data-v-d1530885]{display:flex;align-items:center;gap:11px;font-size:12px;font-weight:600;color:#5c6f89}.hub-login-form h2[data-v-d1530885]{font-size:25px;margin:23px 0 10px;letter-spacing:-.5px;font-weight:750}.hub-login-form-intro[data-v-d1530885]{color:#5c6f89;font-size:12px;line-height:1.8;margin:0 0 26px}.hub-login-form label[data-v-d1530885]{display:block;margin:20px 0;font-size:12px;font-weight:600;color:#455a72}.hub-login-form input[data-v-d1530885]{display:block;box-sizing:border-box;width:100%;margin-top:9px;border:1px solid #dce5ef;border-radius:12px;background:#f7f9fc;padding:14px;color:#1e304a;font:inherit;font-size:14px;font-weight:400;outline:none;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}.hub-login-form input[data-v-d1530885]::placeholder{color:#596b85}.hub-login-form input[data-v-d1530885]:focus{background:#fff;border-color:var(--login-blue);box-shadow:0 0 0 3px #2463eb12}.hub-password[data-v-d1530885]{position:relative}.hub-password input[data-v-d1530885]{padding-right:64px}.hub-password button[data-v-d1530885]{position:absolute;right:5px;top:3px;min-width:48px;min-height:44px;padding:7px;border:0;border-radius:9px;background:none;color:var(--login-blue);font-size:12px;cursor:pointer}.hub-login-submit[data-v-d1530885]{margin-top:8px;border:1px solid #1758dd;border-radius:13px;padding:15px 18px;width:100%;background:linear-gradient(180deg,#3575fb,#2463eb);color:#fff;box-shadow:inset 0 1px #ffffff4d,0 5px 12px #2463eb20;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font:inherit;font-size:14px;font-weight:600;transition:transform .15s ease,box-shadow .15s ease}.hub-login-submit>span[data-v-d1530885]{font-size:20px;font-weight:400;line-height:1}.hub-login-submit[data-v-d1530885]:hover:not(:disabled){box-shadow:inset 0 1px #ffffff4d,0 7px 18px #2463eb30;transform:translateY(-1px)}.hub-login-submit[data-v-d1530885]:active:not(:disabled){transform:translateY(0)}.hub-login-submit[data-v-d1530885]:disabled{opacity:.6;cursor:wait}.hub-login-submit[data-v-d1530885]:focus-visible,.hub-password button[data-v-d1530885]:focus-visible{outline:3px solid #ff9b70;outline-offset:3px}.hub-login-help[data-v-d1530885]{margin:22px 0 0;color:#5c6f89;font-size:11px;line-height:1.9}.hub-login-registration[data-v-d1530885]{display:block;margin-top:17px;color:var(--login-blue);font-size:12px;font-weight:650;text-align:center;text-decoration:none}.hub-login-registration[data-v-d1530885]:hover{text-decoration:underline}.hub-login-registration[data-v-d1530885]:focus-visible{outline:3px solid #ff9b7040;outline-offset:4px}.hub-login-error[data-v-d1530885]{background:#fff2ed;color:#a3361c;font-size:12px;line-height:1.7;padding:11px 13px;border-radius:10px;margin-bottom:10px}@media(max-width:1000px){.hub-login-story[data-v-d1530885]{padding-left:8%}.hub-login-form-wrap[data-v-d1530885]{padding-right:6%}.hub-login-tray[data-v-d1530885]{gap:13px;padding:27px 16px 23px}.hub-login-form[data-v-d1530885]{padding:28px}.hub-login-art-note[data-v-d1530885]{margin-left:13px}}@media(max-width:760px){.hub-login-page[data-v-d1530885]{grid-template-columns:1fr;align-content:start;background:radial-gradient(ellipse at 90% 10%,#deeee9 0,transparent 38%),radial-gradient(ellipse at 2% 50%,#ddeaff 0,transparent 50%),#f5f8fd}.hub-login-story[data-v-d1530885]{min-height:0;padding:25px 24px 0}.hub-login-brand[data-v-d1530885]{font-size:17px;gap:11px}.hub-login-brand>b[data-v-d1530885]{width:40px;height:40px;border-radius:13px;font-size:21px}.hub-login-intro[data-v-d1530885]{padding:23px 0 0;max-width:none}.hub-login-eyebrow[data-v-d1530885],.hub-login-footer[data-v-d1530885],.hub-login-art[data-v-d1530885]{display:none}.hub-login-intro h1[data-v-d1530885]{font-size:29px;letter-spacing:-1px;margin:0 0 7px}.hub-login-intro>p[data-v-d1530885]{font-size:12px;line-height:1.8;max-width:320px}.hub-login-form-wrap[data-v-d1530885]{padding:25px 16px 24px}.hub-login-glass[data-v-d1530885]{max-width:454px;padding:6px;border-radius:27px}.hub-login-form[data-v-d1530885]{padding:23px 20px;border-radius:21px}.hub-login-form h2[data-v-d1530885]{font-size:23px;margin-top:20px}.hub-login-form-intro[data-v-d1530885]{margin-bottom:21px}.hub-login-form label[data-v-d1530885]{margin:17px 0}.hub-login-form input[data-v-d1530885]{font-size:16px}.hub-password button[data-v-d1530885]{top:4px}.hub-login-help[data-v-d1530885]{margin-top:19px}}@media(prefers-reduced-motion:reduce){.hub-login-form input[data-v-d1530885],.hub-login-submit[data-v-d1530885]{transition:none}.hub-login-submit[data-v-d1530885]:hover:not(:disabled){transform:none}}@media(prefers-reduced-transparency:reduce){.hub-login-tray[data-v-d1530885],.hub-login-glass[data-v-d1530885],.hub-login-art-note[data-v-d1530885]{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}}.homework-tabs[data-v-5ebb9b28]{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.homework-tabs a[data-v-5ebb9b28]{min-height:44px;padding:12px 18px;background:#fff;border:1px solid #dce5f3;border-radius:12px;text-decoration:none;color:#47617f}.homework-tabs a.router-link-exact-active[data-v-5ebb9b28]{background:#eaf2ff;color:#1558bd;border-color:#1558bd}.homework-tabs a[data-v-5ebb9b28]:focus-visible{outline:2px solid #1558bd;outline-offset:2px}.assessment-tabs[data-v-5acc6761]{display:flex;flex-wrap:wrap;gap:8px;padding:8px;margin-bottom:20px;background:#fff;border:1px solid #dce5f3;border-radius:16px}.assessment-tabs a[data-v-5acc6761]{flex:1;min-width:140px;min-height:44px;display:flex;align-items:center;justify-content:center;padding:10px 16px;color:#47617f;border-radius:10px;text-decoration:none;font-weight:600}.assessment-tabs a.router-link-exact-active[data-v-5acc6761]{color:#1558bd;background:#eaf2ff}.assessment-tabs a[data-v-5acc6761]:focus-visible{outline:2px solid #1558bd;outline-offset:2px}.vivid-dashboard[data-v-7fff64be]{--action-ink: #79341e;--action-accent: #c74720;--action-bg: #fff0df;--action-tint: #ffd3ad}.vivid-dashboard.teacher[data-v-7fff64be]{--action-ink: #153d73;--action-accent: #2463eb;--action-bg: #edf5ff;--action-tint: #c6e4ff}.account-card .account-values[data-v-7fff64be]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}.account-values div[data-v-7fff64be]{display:grid;gap:5px;padding:12px;border-radius:14px;background:color-mix(in srgb,var(--action-bg) 70%,white)}.account-values small[data-v-7fff64be]{color:var(--muted, #6b7890)}.account-values strong[data-v-7fff64be]{color:var(--action-ink);font-size:20px}@media(max-width:700px){.account-card .account-values[data-v-7fff64be]{grid-template-columns:1fr}}.vivid-dashboard.admin[data-v-7fff64be]{--action-ink: #125745;--action-accent: #087b5f;--action-bg: #eafff5;--action-tint: #b8efd9}.dashboard-heading[data-v-7fff64be]{margin-bottom:24px}.dashboard-greeting[data-v-7fff64be]{display:flex;align-items:center;gap:9px;color:#5e6d85;font-size:13px;margin-bottom:5px}.greeting-dot[data-v-7fff64be]{height:7px;width:7px;border-radius:50%;background:#19b17c;box-shadow:0 0 0 4px #e1f7ed}.learning-shell .dashboard-heading h1[data-v-7fff64be]{font-size:29px;letter-spacing:-1px;color:#18243d}.dashboard-date[data-v-7fff64be]{display:flex;align-items:center;gap:8px;color:#60718e;font-size:12px;padding:9px 12px;border:1px solid #ffffff;background:#ffffffb8;border-radius:13px;box-shadow:0 2px 10px #1e427805;white-space:nowrap}.dashboard-action[data-v-7fff64be]{display:grid;grid-template-columns:minmax(0,1fr) 145px;gap:20px;padding:26px;border-radius:25px;background:radial-gradient(ellipse at 98% 4%,var(--action-tint),transparent 70%),var(--action-bg);border:1px solid #ffffff;box-shadow:inset 0 1px #ffffffef,0 6px 20px #254c7709;color:var(--action-ink);min-width:0}.action-copy[data-v-7fff64be]{align-self:center;min-width:0}.action-label[data-v-7fff64be]{display:flex;align-items:center;gap:6px;font-weight:700;font-size:11px;color:var(--action-ink)}.action-label>span[data-v-7fff64be]{height:6px;width:6px;background:currentColor;border-radius:50%}.learning-shell .dashboard-action h2[data-v-7fff64be]{font-size:clamp(21px,1.8vw,27px);line-height:1.42;letter-spacing:-.6px;margin:10px 0 9px;color:var(--action-ink)}.dashboard-action p[data-v-7fff64be]{font-size:12px;line-height:1.85;max-width:330px;color:var(--action-ink);opacity:.85}.learning-shell .action-button[data-v-7fff64be]{margin-top:20px;font-size:12px;font-weight:650;border:1px solid #ffffff45;border-radius:13px;background:var(--action-accent);color:#fff;padding:10px 15px;box-shadow:inset 0 1px #ffffff30,0 5px 12px #173d6e15}.learning-shell .action-button[data-v-7fff64be]:hover{background:var(--action-ink);color:#fff;transform:translateY(-1px)}.action-route[data-v-7fff64be]{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:15px 10px;border:1px solid #ffffffcc;border-radius:21px;background:linear-gradient(150deg,#ffffffbd,#ffffff56);box-shadow:inset 0 1px #fff,0 9px 24px #154f6510;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.action-route ol[data-v-7fff64be]{display:grid;gap:9px;list-style:none;padding:0;margin:13px 0 0;font-size:11px}.action-route li[data-v-7fff64be]{display:flex;align-items:center;gap:8px;white-space:nowrap}.action-route li>span[data-v-7fff64be]{height:17px;width:17px;background:#ffffffb5;border:1px solid #ffffff;border-radius:50%;display:grid;place-items:center;color:var(--action-accent);font-size:9px;font-weight:750}.dashboard-metrics[data-v-7fff64be]{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.dashboard-metrics.compact[data-v-7fff64be]{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-card[data-v-7fff64be]{position:relative;padding:17px;background:#ffffffce;border:1px solid #fff;border-radius:20px;box-shadow:0 4px 18px #21417205}.metric-symbol[data-v-7fff64be]{color:#2463eb;background:#eaf1ff;display:grid;place-items:center;width:30px;height:30px;border-radius:9px;margin-bottom:11px}.metric-1 .metric-symbol[data-v-7fff64be]{color:#d96517;background:#fff0de}.metric-2 .metric-symbol[data-v-7fff64be]{color:#09866b;background:#e1f8ec}.metric-3 .metric-symbol[data-v-7fff64be]{color:#cf4472;background:#ffeaf1}.metric-card strong[data-v-7fff64be]{font-size:27px;line-height:1.15;letter-spacing:-.8px;font-weight:750;color:#18243d;display:block;font-variant-numeric:tabular-nums}.learning-shell .metric-card small[data-v-7fff64be]{display:block;font-size:11px;margin-top:8px;color:#64738d}.vivid-dashboard .hub-stack>.hub-card[data-v-7fff64be]{margin-top:0}.vivid-dashboard .hub-card[data-v-7fff64be]{border-radius:23px}.learning-shell .vivid-dashboard .card-heading h2[data-v-7fff64be]{font-size:17px;letter-spacing:-.3px}.learning-shell .section-note[data-v-7fff64be]{font-size:11px;color:#596b85;margin-top:4px;line-height:1.6}.shortcut-grid[data-v-7fff64be]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.learning-shell .dashboard-shortcut[data-v-7fff64be]{position:relative;display:flex;align-items:center;gap:14px;justify-content:flex-start;padding:17px 15px;border:1px solid #e6eefb;background:linear-gradient(135deg,#f1f6ff,#fcfdff);border-radius:18px;text-align:left;min-width:0;transition:transform .18s ease,box-shadow .18s ease}.learning-shell .dashboard-shortcut.green[data-v-7fff64be]{background:linear-gradient(135deg,#ebfaf1,#fcfffd);border-color:#e0f2e6}.learning-shell .dashboard-shortcut.orange[data-v-7fff64be]{background:linear-gradient(135deg,#fff2e4,#fffdfa);border-color:#faebd8}.learning-shell .dashboard-shortcut.rose[data-v-7fff64be]{background:linear-gradient(135deg,#fff0f2,#fffdfd);border-color:#fae6ea}.learning-shell .dashboard-shortcut.amber[data-v-7fff64be]{background:linear-gradient(135deg,#fff8df,#fffffb);border-color:#f4ebcd}.learning-shell .dashboard-shortcut.cyan[data-v-7fff64be]{background:linear-gradient(135deg,#eaf9fd,#fcfeff);border-color:#ddeff4}.learning-shell .dashboard-shortcut[data-v-7fff64be]:hover{transform:translateY(-3px);box-shadow:0 9px 20px #1f437811,inset 0 1px #fff;color:#18243d;border-color:#baceef}.shortcut-copy[data-v-7fff64be]{min-width:0;flex:1}.shortcut-copy b[data-v-7fff64be]{display:block;color:#25334a;font-size:14px;margin-bottom:3px;font-weight:720}.learning-shell .shortcut-copy small[data-v-7fff64be]{font-size:11px;color:#596b85;display:block;line-height:1.6}.shortcut-arrow[data-v-7fff64be]{color:#99a7bc;flex-shrink:0}.continue-item[data-v-7fff64be]{display:flex;gap:12px;align-items:center;padding:14px 0}.continue-item+.continue-item[data-v-7fff64be]{border-top:1px solid #edf1f7}.continue-item>div[data-v-7fff64be]{flex:1;min-width:0}.learning-shell .continue-item h3[data-v-7fff64be]{font-size:13px;line-height:1.5;overflow-wrap:anywhere}.continue-item p[data-v-7fff64be]{font-size:11px;color:#596b85;margin-top:4px}.learning-shell .continue-item button[data-v-7fff64be]{white-space:nowrap;font-size:11px;padding:7px 10px}.resource-grid[data-v-7fff64be]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.learning-shell .dashboard-resource[data-v-7fff64be]{display:flex;align-items:stretch;gap:13px;padding:12px;background:#fff;text-align:left;border:1px solid #eaf0f7;border-radius:17px;min-width:0}.learning-shell .dashboard-resource[data-v-7fff64be]:hover{background:#f9fbff;border-color:#b9cdf2;transform:translateY(-2px)}.dashboard-cover[data-v-7fff64be]{width:68px;min-height:92px;flex-shrink:0;border-radius:11px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;background:#eef4ff}.dashboard-resource.video .dashboard-cover[data-v-7fff64be]{background:#e6f8f0}.dashboard-resource.ppt .dashboard-cover[data-v-7fff64be]{background:#fff1df}.dashboard-resource.article .dashboard-cover[data-v-7fff64be]{background:#fff2e8}.resource-kind[data-v-7fff64be]{font-size:9px;color:#596b85;letter-spacing:1px}.resource-copy[data-v-7fff64be]{display:flex;flex-direction:column;justify-content:center;min-width:0;flex:1}.resource-copy b[data-v-7fff64be]{font-size:12px;line-height:1.65;color:#25334a;font-weight:600;overflow-wrap:anywhere}.resource-copy>span[data-v-7fff64be]{display:flex;align-items:center;gap:7px;font-size:10px;margin-top:9px;color:#366fcb}.dashboard-rail[data-v-7fff64be]{display:grid;gap:18px}.vivid-dashboard .dashboard-rail>.hub-card[data-v-7fff64be]{margin-top:0}.vivid-dashboard .calendar-card[data-v-7fff64be]{padding:21px 18px 18px;background:linear-gradient(150deg,#fffffff2,#ffffffbc);border:1px solid #fff;box-shadow:0 7px 24px #264b8508;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.calendar-label[data-v-7fff64be]{display:flex;align-items:center;gap:10px;margin-bottom:18px}.learning-shell .calendar-label h2[data-v-7fff64be]{font-size:16px}.calendar-label span[data-v-7fff64be]{font-size:10px;color:#5c6f89}.calendar-month[data-v-7fff64be]{margin-bottom:11px}.learning-shell .calendar-month h3[data-v-7fff64be]{font-size:12px;font-weight:650}.calendar-month>div[data-v-7fff64be]{display:flex;gap:6px}.learning-shell .calendar-month button[data-v-7fff64be]{border:1px solid #e7edf6;background:#fff;width:25px;height:25px;padding:0;border-radius:9px;font-size:21px;color:#526988}.calendar-week[data-v-7fff64be],.calendar-days[data-v-7fff64be]{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));text-align:center;gap:3px}.calendar-week[data-v-7fff64be]{font-size:10px;color:#5c6f89;padding-bottom:7px}.learning-shell .calendar-days button[data-v-7fff64be]{min-height:32px;padding:4px 0;border:1px solid transparent;border-radius:10px;font-size:11px;position:relative;background:transparent;color:#526681;font-weight:600}.learning-shell .calendar-days button[data-v-7fff64be]:hover{background:#edf4ff;border-color:#d7e5ff}.learning-shell .calendar-days button.muted[data-v-7fff64be]{color:#667387}.learning-shell .calendar-days button.selected[data-v-7fff64be]{background:linear-gradient(160deg,#4288ff,#245ce4);color:#fff;box-shadow:inset 0 1px #ffffff50,0 4px 8px #2463eb35;border-color:#4281e6}.calendar-days button.event[data-v-7fff64be]:after{content:"";position:absolute;bottom:3px;left:calc(50% - 1.5px);width:3px;height:3px;border-radius:50%;background:#f58a3b}.calendar-days button.selected.event[data-v-7fff64be]:after{background:#fff}.daily-heading[data-v-7fff64be]{padding-top:16px;margin-top:16px;border-top:1px solid #eaf0f8;margin-bottom:10px}.learning-shell .daily-heading h3[data-v-7fff64be]{font-size:12px}.learning-shell .daily-heading button[data-v-7fff64be]{font-size:10px;padding:4px 0}.calendar-empty[data-v-7fff64be]{display:flex;gap:9px;color:#8ea2bc;align-items:flex-start;padding:11px 0 2px}.calendar-empty p[data-v-7fff64be]{font-size:11px;color:#566c88}.learning-shell .calendar-empty small[data-v-7fff64be]{display:block;font-size:10px;color:#5c6f89;margin-top:3px;line-height:1.7}.daily-lesson[data-v-7fff64be]{border-left:3px solid #4287fb;background:#f1f7ff;border-radius:0 12px 12px 0;padding:12px;margin-top:11px}.learning-shell .daily-lesson h3[data-v-7fff64be]{font-size:12px;margin:5px 0 10px}.daily-lesson small[data-v-7fff64be]{font-size:10px}.learning-shell .daily-lesson button[data-v-7fff64be]{font-size:10px;padding:5px 9px}.plan-mini+.plan-mini[data-v-7fff64be]{margin-top:18px}.learning-shell .plan-mini h3[data-v-7fff64be]{font-size:12px}.plan-mini small[data-v-7fff64be]{font-size:10px}.plan-mini .hub-progress[data-v-7fff64be]{margin-top:9px;background:#eaf4f0;height:6px}.plan-mini .hub-progress i[data-v-7fff64be]{background:linear-gradient(90deg,#0fbb82,#43d3ad)}.learning-shell .plan-button[data-v-7fff64be]{width:100%;margin-top:20px;font-size:11px}.dashboard-help[data-v-7fff64be]{border:1px solid #fff;border-radius:23px;background:linear-gradient(145deg,#fff5e7,#ffead8);padding:23px;box-shadow:inset 0 1px #fff,0 5px 18px #b5601705}.teacher .dashboard-help[data-v-7fff64be]{background:linear-gradient(145deg,#edf8ff,#dfedff)}.admin .dashboard-help[data-v-7fff64be]{background:linear-gradient(145deg,#ecfaf2,#d9f6e8)}.learning-shell .dashboard-help h2[data-v-7fff64be]{font-size:17px;line-height:1.5;margin:15px 0 8px;letter-spacing:-.3px}.dashboard-help p[data-v-7fff64be]{font-size:11px;color:#675b49;line-height:1.85}.teacher .dashboard-help p[data-v-7fff64be]{color:#526981}.admin .dashboard-help p[data-v-7fff64be]{color:#436c5c}.learning-shell .dashboard-help button[data-v-7fff64be]{width:100%;font-size:11px;font-weight:650;color:#81541f;background:#ffffffb5;border:1px solid #fff;margin-top:17px;border-radius:12px}.teacher .dashboard-help button[data-v-7fff64be]{color:#2964bd}.admin .dashboard-help button[data-v-7fff64be]{color:#0d805b}@media(min-width:1400px){.student .shortcut-grid[data-v-7fff64be]{grid-template-columns:repeat(3,minmax(0,1fr))}.student .dashboard-shortcut[data-v-7fff64be]{flex-direction:column;align-items:flex-start;gap:13px;min-height:157px}.student .shortcut-arrow[data-v-7fff64be]{position:absolute;top:20px;right:14px}}@media(max-width:1200px)and (min-width:961px){.dashboard-action[data-v-7fff64be]{grid-template-columns:minmax(0,1fr) 116px;padding:20px;gap:12px}.dashboard-action p[data-v-7fff64be]{font-size:11px}.action-route[data-v-7fff64be]{padding-inline:6px}.dashboard-metrics[data-v-7fff64be]{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-card[data-v-7fff64be]{padding:15px}.learning-shell .dashboard-shortcut[data-v-7fff64be]{flex-direction:column;align-items:flex-start;gap:12px}.shortcut-arrow[data-v-7fff64be]{position:absolute;top:18px;right:14px}.resource-grid[data-v-7fff64be]{grid-template-columns:1fr}}@media(max-width:960px){.dashboard-action[data-v-7fff64be]{grid-template-columns:minmax(0,1fr) 145px}.dashboard-rail[data-v-7fff64be]{align-items:start}.dashboard-date[data-v-7fff64be]{font-size:11px}}@media(max-width:700px){.dashboard-heading[data-v-7fff64be]{align-items:flex-start;gap:7px;margin-bottom:18px}.dashboard-greeting[data-v-7fff64be]{font-size:11px}.learning-shell .dashboard-heading h1[data-v-7fff64be]{font-size:25px;letter-spacing:-.6px}.dashboard-date[data-v-7fff64be]{font-size:10px;padding:7px 8px;margin-top:3px;gap:5px}.dashboard-date svg[data-v-7fff64be]{width:14px}.dashboard-action[data-v-7fff64be]{padding:21px;grid-template-columns:1fr;gap:18px;border-radius:22px}.learning-shell .dashboard-action h2[data-v-7fff64be]{font-size:25px}.dashboard-action p[data-v-7fff64be]{max-width:none}.learning-shell .action-button[data-v-7fff64be]{margin-top:17px}.action-route[data-v-7fff64be]{flex-direction:row;justify-content:flex-start;padding:12px;border-radius:16px;gap:15px}.action-route[data-v-7fff64be] .hub-icon-tile{width:42px!important;height:42px!important}.action-route ol[data-v-7fff64be]{flex:1;display:flex;justify-content:space-between;gap:6px;margin:0}.action-route li[data-v-7fff64be]{flex-direction:column;gap:5px;font-size:9px}.dashboard-metrics[data-v-7fff64be]{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.metric-card[data-v-7fff64be]{padding:12px 8px;border-radius:15px}.metric-symbol[data-v-7fff64be]{width:26px;height:26px;border-radius:8px;margin-bottom:10px}.metric-symbol svg[data-v-7fff64be]{width:16px;height:16px}.metric-card strong[data-v-7fff64be]{font-size:24px}.learning-shell .metric-card small[data-v-7fff64be]{font-size:10px;line-height:1.6;margin-top:6px}.vivid-dashboard .hub-card[data-v-7fff64be]{padding:18px;border-radius:21px}.learning-shell .vivid-dashboard .card-heading h2[data-v-7fff64be]{font-size:16px}.learning-shell .section-note[data-v-7fff64be]{font-size:10px}.shortcut-grid[data-v-7fff64be]{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.learning-shell .dashboard-shortcut[data-v-7fff64be]{flex-direction:column;align-items:flex-start;gap:13px;padding:15px 13px;border-radius:16px}.shortcut-copy b[data-v-7fff64be]{font-size:13px}.learning-shell .shortcut-copy small[data-v-7fff64be]{font-size:10px}.shortcut-arrow[data-v-7fff64be]{position:absolute;right:12px;top:17px}.resource-grid[data-v-7fff64be]{grid-template-columns:1fr;gap:10px}.resource-cover[data-v-7fff64be]{width:64px;min-height:80px}.resource-copy b[data-v-7fff64be]{font-size:12px}.continue-item[data-v-7fff64be]{gap:9px;flex-wrap:wrap}.continue-item>div[data-v-7fff64be]{min-width:175px}.continue-item>button[data-v-7fff64be]{margin-left:51px}.learning-shell .calendar-card[data-v-7fff64be]{padding:21px}.calendar-week[data-v-7fff64be]{gap:5px}.learning-shell .calendar-days button[data-v-7fff64be]{min-height:37px;font-size:12px}.dashboard-help[data-v-7fff64be]{padding:23px}}@media(prefers-reduced-motion:reduce){.learning-shell .dashboard-shortcut[data-v-7fff64be],.learning-shell .dashboard-resource[data-v-7fff64be],.learning-shell .action-button[data-v-7fff64be]{transition:none;transform:none}}.textbook-cover-preview[data-v-dafdd9f2]{position:absolute;inset:0;box-sizing:border-box;z-index:2;pointer-events:none;opacity:0;padding:12px;background:linear-gradient(145deg,#e8eef7,#f7f9fc);transition:opacity .18s ease}.textbook-cover-preview.ready[data-v-dafdd9f2]{opacity:1}.textbook-cover-preview canvas[data-v-dafdd9f2],.textbook-cover-preview img[data-v-dafdd9f2]{display:block;width:100%;height:100%;object-fit:contain;object-position:center;filter:drop-shadow(0 10px 18px rgb(35 50 80 / 18%))}.hub-split.textbook-detail[data-v-3d3c9c4f]{grid-template-columns:minmax(0,1fr)}.resource-title-row[data-v-3d3c9c4f]{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:16px 0 8px}.resource-title-row h1[data-v-3d3c9c4f]{margin:0}.favorite-button[data-v-3d3c9c4f]{flex:0 0 auto;border-color:#dfe3ef;color:#545c76;background:#fff}.favorite-button.active[data-v-3d3c9c4f]{border-color:#ffd489;color:#a65f00;background:#fff7e7}.preview-state-card[data-v-3d3c9c4f]{display:flex;align-items:center;gap:14px;margin-top:18px;padding:20px;border:1px solid #dce4f1;border-radius:16px;color:#40516c;background:#f7f9fd}.preview-state-card div[data-v-3d3c9c4f]{flex:1}.preview-state-card p[data-v-3d3c9c4f]{margin:5px 0 0;color:#718099;font-size:12px}.textbook-reader[data-v-3d3c9c4f]{margin-top:18px;overflow:hidden;border:1px solid #dfe5f2;border-radius:18px;background:#edf1f8;box-shadow:0 18px 48px #232d4f1f}.reader-toolbar[data-v-3d3c9c4f]{display:flex;min-height:48px;align-items:center;justify-content:space-between;gap:12px;padding:7px 10px;color:#fff;background:linear-gradient(115deg,#253467,#5b53d6)}.reader-controls[data-v-3d3c9c4f],.page-control[data-v-3d3c9c4f]{display:flex;align-items:center;gap:9px}.reader-controls[data-v-3d3c9c4f]{flex-wrap:nowrap;justify-content:flex-end}.reader-controls button[data-v-3d3c9c4f],.reader-controls select[data-v-3d3c9c4f],.page-control input[data-v-3d3c9c4f],.toc-toggle[data-v-3d3c9c4f]{min-height:32px;border:1px solid rgb(255 255 255 / 26%);border-radius:9px;color:#fff;background:#ffffff1f}.reader-controls button[data-v-3d3c9c4f]{padding:5px 10px;white-space:nowrap}.toc-toggle[data-v-3d3c9c4f]{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;white-space:nowrap}.reader-controls button[data-v-3d3c9c4f]:hover:not(:disabled),.reader-controls button[data-v-3d3c9c4f]:focus-visible,.reader-controls select[data-v-3d3c9c4f]:focus-visible,.page-control input[data-v-3d3c9c4f]:focus-visible,.toc-toggle[data-v-3d3c9c4f]:focus-visible{outline:2px solid #ffd567;outline-offset:2px;background:#ffffff38}.reader-controls button[data-v-3d3c9c4f]:disabled{opacity:.42}.reader-controls select option[data-v-3d3c9c4f]{color:#252846}.page-control[data-v-3d3c9c4f]{font-size:12px;white-space:nowrap}.textbook-reader .page-control input[data-v-3d3c9c4f]{width:52px;height:32px;min-height:32px;padding:4px 6px;color:#283158;background:#fff;text-align:center}.textbook-reader .reader-controls select[data-v-3d3c9c4f]{width:126px;height:32px;min-height:32px;padding:4px 28px 4px 9px;color:#283158;background:#fff}.reader-layout[data-v-3d3c9c4f]{display:grid;grid-template-columns:minmax(176px,220px) minmax(0,1fr);min-height:680px}.reader-layout.collapsed[data-v-3d3c9c4f]{grid-template-columns:minmax(0,1fr)}.reader-layout[data-v-3d3c9c4f] .pdf-stage{width:100%;height:680px}.reader-toc[data-v-3d3c9c4f]{overflow-y:auto;max-height:680px;padding:22px 13px;border-right:1px solid #dce2ef;background:#fff}.reader-toc p[data-v-3d3c9c4f]{margin:0 9px 13px;color:#868da3;font-size:11px;font-weight:800;letter-spacing:.14em}.reader-toc button[data-v-3d3c9c4f]{display:flex;width:100%;align-items:flex-start;justify-content:space-between;gap:10px;margin:3px 0;padding:10px 9px;border:0;border-radius:10px;color:#343950;background:transparent;text-align:left}.reader-toc button[data-v-3d3c9c4f]:hover,.reader-toc button[data-v-3d3c9c4f]:focus-visible{color:#3346bd;background:#f0f2ff}.reader-toc button.active[data-v-3d3c9c4f]{color:#3448c7;font-weight:700}.reader-toc small[data-v-3d3c9c4f]{color:#9da3b6;font-variant-numeric:tabular-nums}.textbook-fields[data-v-3d3c9c4f],.hub-grid.three[data-v-3d3c9c4f]{align-items:start}.textbook-card .resource-cover[data-v-3d3c9c4f]{height:310px;padding:0;border-bottom:1px solid #e2e8f2;background:linear-gradient(145deg,#edf3fb,#f8faff)}.textbook-card .resource-body[data-v-3d3c9c4f]{gap:12px}.textbook-card .resource-body h3[data-v-3d3c9c4f]{margin-bottom:0;font-size:17px;line-height:1.5}.textbook-name[data-v-3d3c9c4f]{display:grid!important;grid-template-columns:42px minmax(0,1fr);gap:8px;margin:0;color:#33435c!important;-webkit-line-clamp:initial!important}.textbook-name span[data-v-3d3c9c4f],.textbook-specs dt[data-v-3d3c9c4f]{color:#8a96a9;font-size:11px;font-weight:650}.textbook-specs[data-v-3d3c9c4f]{display:grid;gap:0;margin:0;border-top:1px solid #edf0f5}.textbook-specs div[data-v-3d3c9c4f]{display:grid;grid-template-columns:42px minmax(0,1fr);gap:8px;padding:8px 0;border-bottom:1px solid #edf0f5}.textbook-specs dd[data-v-3d3c9c4f]{min-width:0;margin:0;color:#34445d;font-size:12px;line-height:1.55}.toc-field textarea[data-v-3d3c9c4f]{min-height:126px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.textbook-reader[data-v-3d3c9c4f]:fullscreen{width:100vw;height:100vh;border:0;border-radius:0}.textbook-reader:fullscreen .reader-layout[data-v-3d3c9c4f],.textbook-reader[data-v-3d3c9c4f]:fullscreen .pdf-stage,.textbook-reader:fullscreen .reader-toc[data-v-3d3c9c4f]{height:calc(100vh - 48px);max-height:none}@media(max-width:900px){.reader-toolbar[data-v-3d3c9c4f]{overflow-x:auto}.reader-controls[data-v-3d3c9c4f]{width:auto;justify-content:flex-start}.reader-layout[data-v-3d3c9c4f]{grid-template-columns:1fr}.reader-toc[data-v-3d3c9c4f]{display:flex;max-height:126px;gap:4px;overflow-x:auto;border-right:0;border-bottom:1px solid #dce2ef}.reader-toc p[data-v-3d3c9c4f]{display:none}.reader-toc button[data-v-3d3c9c4f]{min-width:170px}}.question-tag-picker[data-v-d2050bf9]{min-width:0;border:1px solid #dfe6f0;border-radius:12px;padding:14px;margin:0;color:#18243d;font-size:14px}legend[data-v-d2050bf9]{padding:0 6px;font-weight:600}legend small[data-v-d2050bf9]{margin-left:12px;color:#596981;font-size:12px;font-weight:400}.selected-tags[data-v-d2050bf9]{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.selected-tags button[data-v-d2050bf9]{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:8px 12px;background:#eaf1ff;border:1px solid #bdd0f7;border-radius:8px;color:#194fbd;font:inherit;white-space:normal;text-align:left;overflow-wrap:anywhere}.tag-search[data-v-d2050bf9]{display:flex;flex-direction:column;gap:6px;font-size:13px}.tag-search input[data-v-d2050bf9]{width:100%;min-width:0;padding:9px 12px;min-height:44px;border:1px solid #cbd6e6;border-radius:8px;background:#fff;font:inherit;color:inherit}.tag-options[data-v-d2050bf9]{max-height:240px;overflow-y:auto}.tag-group[data-v-d2050bf9]{margin-top:14px}.tag-group strong[data-v-d2050bf9]{display:block;font-size:13px;color:#596981;margin-bottom:7px}.tag-group>div[data-v-d2050bf9]{display:flex;flex-wrap:wrap;gap:8px}.tag-group label[data-v-d2050bf9]{display:flex;flex-direction:row;align-items:center;gap:8px;min-height:44px;padding:8px 12px;border:1px solid #dfe6f0;border-radius:8px;cursor:pointer;max-width:100%}.tag-group label.checked[data-v-d2050bf9]{background:#eef4ff;border-color:#a8c1f4}.tag-group input[data-v-d2050bf9]{width:18px;height:18px;min-height:18px;flex:0 0 auto;accent-color:#2463eb}.tag-group span[data-v-d2050bf9]{overflow-wrap:anywhere}.question-tag-picker p[data-v-d2050bf9]{margin:12px 0 0;font-size:13px;color:#596981}.question-tag-picker[data-v-d2050bf9] :is(input,button):focus-visible{outline:3px solid #477cf0;outline-offset:3px}@media(max-width:700px){.tag-search input[data-v-d2050bf9]{font-size:16px}}.question-content[data-v-0b783015]{white-space:pre-wrap;overflow-wrap:anywhere}.missing-media[data-v-0b783015]{color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:4px;padding:1px 4px;font-size:.9em}.question-content img[data-v-0b783015]{max-width:100%;height:auto;vertical-align:middle;object-fit:contain;background:#fff}.question-content[data-v-0b783015] math{display:inline math;vertical-align:middle;max-width:100%;overflow-x:auto}.question-figures[data-v-808bdaee]{display:flex;flex-wrap:wrap;gap:12px;margin:14px 0}.question-figures img[data-v-808bdaee]{max-width:100%;max-height:420px;object-fit:contain;height:auto;background:#fff}.question-metadata[data-v-808bdaee]{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.question-metadata span[data-v-808bdaee]{padding:5px 9px;border-radius:6px;background:#edf3ff;color:#2754a2;font-size:13px;overflow-wrap:anywhere}.private-questions[data-v-fe7517b5]{margin:24px 0}.private-questions details[data-v-fe7517b5]{padding:18px 0}.private-questions summary[data-v-fe7517b5]{min-height:44px;cursor:pointer}.private-editor[data-v-fe7517b5]{padding:20px;background:#f7f5fc;border:1px solid #e4ddf0;border-radius:12px;margin:20px 0}.private-editor label[data-v-fe7517b5]{margin-bottom:14px}.private-item[data-v-fe7517b5]{border-top:1px solid #e8e3ef;padding:18px 0}.private-item>p[data-v-fe7517b5]{margin:12px 0;white-space:pre-wrap;overflow-wrap:anywhere}.library-tags[data-v-edade262]{margin-bottom:20px}.library-tags summary[data-v-edade262]{min-height:44px;padding:10px 0;cursor:pointer;color:#2158bd}.library-tags>button[data-v-edade262]{margin-top:12px}.selection-dock[data-v-edade262]{position:sticky;bottom:15px;background:#fff;box-shadow:0 7px 30px #5745781c;border:1px solid #e8e2f5;border-radius:12px;display:flex;align-items:center;justify-content:flex-end;gap:20px;padding:16px 22px;margin-top:23px}.selection-dock>span[data-v-edade262]{margin-right:auto;color:#8f83a3}.study-report[data-v-fe09ca93]{--report-accent: #5b43a6;--report-soft: #f2effa;background:#fff;border:1px solid #e6e1f0;border-radius:20px;padding:28px;color:#272438;margin:20px 0}.report-quick[data-v-fe09ca93]{--report-accent: #0e7668;--report-soft: #eef8f5}.report-lesson[data-v-fe09ca93]{--report-accent: #245ca5;--report-soft: #eef4fc}.report-review[data-v-fe09ca93]{--report-accent: #8b5414;--report-soft: #fbf5ea}.report-tools[data-v-fe09ca93]{display:flex;gap:16px;justify-content:flex-end;align-items:center;margin-bottom:24px;flex-wrap:wrap}.report-tools label[data-v-fe09ca93]{display:flex;gap:10px;align-items:center}.report-tools select[data-v-fe09ca93],.report-tools button[data-v-fe09ca93]{min-height:44px;padding:8px 12px;border:1px solid #d8d1e5;border-radius:8px;background:#fff;color:#373044}.report-masthead[data-v-fe09ca93]{background:none;color:#292336;box-shadow:none;padding:0 0 24px;display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid #e6e1f0}.report-masthead h2[data-v-fe09ca93]{font-size:26px;margin:8px 0}.report-masthead p[data-v-fe09ca93]{margin:6px 0;color:#625b72}.report-kicker[data-v-fe09ca93]{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--report-accent)!important}.report-status[data-v-fe09ca93]{padding:10px 14px;border-radius:99px;background:var(--report-soft);color:var(--report-accent);font-size:13px;white-space:nowrap}.report-stats[data-v-fe09ca93]{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.report-stats>div[data-v-fe09ca93]{background:var(--report-soft);padding:18px;border-radius:12px}.report-stats span[data-v-fe09ca93]{font-size:13px;color:#625b72}.report-stats strong[data-v-fe09ca93]{display:block;font-size:25px;margin-top:10px;color:var(--report-accent)}.report-note[data-v-fe09ca93],.report-caption[data-v-fe09ca93]{color:#655f70;font-size:13px;line-height:1.7}.report-grid[data-v-fe09ca93]{display:grid;grid-template-columns:1.3fr 1fr;gap:20px;margin-top:22px}.report-panel[data-v-fe09ca93]{padding:22px;border:1px solid #e6e1f0;border-radius:14px;min-width:0}.report-panel h3[data-v-fe09ca93]{margin:0 0 8px;font-size:17px}.report-topic[data-v-fe09ca93]{display:block;width:100%;background:transparent;text-align:left;border:0;padding:14px 0;cursor:pointer;color:inherit;min-height:44px}.topic-line[data-v-fe09ca93]{display:flex;justify-content:space-between;gap:12px;font-size:14px}.report-track[data-v-fe09ca93]{display:block;height:8px;border-radius:5px;background:#eeebf2;margin:10px 0;overflow:hidden}.report-track>span[data-v-fe09ca93]{display:block;height:100%;background:var(--report-accent)}.report-topic small[data-v-fe09ca93]{color:#655f70}.report-stack[data-v-fe09ca93]{display:flex;gap:3px;height:28px;border-radius:8px;overflow:hidden;margin:24px 0}.report-legend[data-v-fe09ca93]{display:flex;justify-content:space-between;margin:16px 0;font-size:14px}.report-legend i[data-v-fe09ca93]{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:10px}.report-columns[data-v-fe09ca93]{height:215px;display:flex;gap:12px;margin-top:24px}.report-columns button[data-v-fe09ca93]{border:0;display:flex;align-items:center;flex-direction:column;flex:1;background:transparent;gap:6px;color:#4f465f;min-width:0;padding:0;cursor:pointer}.column-space[data-v-fe09ca93]{height:130px;width:32px;background:#f3f0f7;display:flex;align-items:flex-end;border-radius:6px;overflow:hidden}.column-space i[data-v-fe09ca93]{width:100%;background:var(--report-accent)}.report-columns small[data-v-fe09ca93]{font-size:11px}.report-actions[data-v-fe09ca93]{padding-left:20px}.report-actions li[data-v-fe09ca93]{padding:8px 0;line-height:1.6}.report-actions p[data-v-fe09ca93]{margin:4px 0;color:#625b72;font-size:14px}button[data-v-fe09ca93]:focus-visible,select[data-v-fe09ca93]:focus-visible{outline:3px solid #8d77bc;outline-offset:3px}@media(max-width:720px){.study-report[data-v-fe09ca93]{padding:16px}.report-grid[data-v-fe09ca93]{grid-template-columns:1fr}.report-stats[data-v-fe09ca93]{grid-template-columns:repeat(2,1fr)}.report-masthead[data-v-fe09ca93]{align-items:flex-start;flex-direction:column}.topic-line[data-v-fe09ca93]{flex-wrap:wrap}.report-tools[data-v-fe09ca93]{justify-content:flex-start}}@media print{.report-tools[data-v-fe09ca93]{display:none}.study-report[data-v-fe09ca93]{border:0;padding:0;-webkit-print-color-adjust:exact;print-color-adjust:exact}.report-panel[data-v-fe09ca93]{break-inside:avoid}.report-grid[data-v-fe09ca93]{grid-template-columns:1fr 1fr}}.answer-photos[data-v-47f8a304]{margin:18px 0}.answer-photos small[data-v-47f8a304]{font-weight:400;color:#655c71}.answer-photo-list[data-v-47f8a304]{display:flex;flex-wrap:wrap;gap:14px}.answer-photo-list figure[data-v-47f8a304]{margin:0;width:180px}.answer-photo-list img[data-v-47f8a304]{width:100%;max-height:240px;object-fit:contain;border:1px solid #ddd4eb;border-radius:8px}.answer-photo-list figcaption[data-v-47f8a304]{display:flex;justify-content:space-between;align-items:center;font-size:13px}.answer-photo-list button[data-v-47f8a304]{min-height:44px}.chapter-choices[data-v-089e0227]{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px;background:#faf9fe;padding:18px;border-radius:11px}.exam-preview[data-v-089e0227]{border:1px solid #dcd1f7;border-radius:12px;padding:20px;margin-top:25px;background:#fcfaff}.exam-preview>p[data-v-089e0227]{font-size:12px;margin:8px 0}.exam-step[data-v-089e0227]{display:flex;gap:13px;align-items:center;margin-top:23px;font-size:12px}.exam-step b[data-v-089e0227]{width:29px;height:29px;border-radius:50%;background:#f0eafa;color:#9a7dc5;display:grid;place-items:center;flex-shrink:0}.answer-map[data-v-089e0227]{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.answer-map button[data-v-089e0227]{padding:8px 0;font-size:12px}.answer-map button.filled[data-v-089e0227]{background:#f0eaff;color:#8c65c8;border-color:#e1d4ff}.answer-map button.current[data-v-089e0227]{background:var(--hub-purple);color:#fff}.report-banner[data-v-089e0227]{display:flex;justify-content:space-between;gap:20px;background:#efe9fb;border:1px solid #e5daf9;border-radius:16px;padding:29px;margin-bottom:23px}.report-banner h2[data-v-089e0227]{font-size:23px;margin:13px 0 9px}.report-banner p[data-v-089e0227]{font-size:12px;color:#92849f;max-width:600px}.report-score[data-v-089e0227]{min-width:130px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--hub-purple)}.report-score b[data-v-089e0227]{font-size:46px;line-height:1.2}.report-score span[data-v-089e0227]{font-size:11px}.report-score small[data-v-089e0227]{font-size:10px;color:#a4874c;margin-top:9px}.topic-row[data-v-089e0227]{margin-bottom:24px}.topic-row[data-v-089e0227]:last-child{margin-bottom:0}.topic-row .hub-progress[data-v-089e0227]{margin:10px 0}.topic-row p[data-v-089e0227]{font-size:12px;color:#9290a3}.review-question[data-v-089e0227]{border-bottom:1px solid #eeedf5;padding:17px 0}.review-question summary[data-v-089e0227]{display:flex;justify-content:space-between;cursor:pointer;font-size:13px;gap:10px}@media(max-width:700px){.chapter-choices[data-v-089e0227]{grid-template-columns:1fr}.report-banner[data-v-089e0227]{padding:20px;display:block}.report-score[data-v-089e0227]{align-items:flex-start;margin-top:20px}.report-banner h2[data-v-089e0227]{font-size:21px}}.quick-selection[data-v-cd06afb9],.selected-preview[data-v-cd06afb9]{margin:16px 0}.quick-selection input[data-v-cd06afb9]{max-width:120px}.quick-selection button[aria-pressed=true][data-v-cd06afb9]{background:#eee8fb;border-color:#8870ae;color:#503a82}.selected-question[data-v-cd06afb9]{padding:16px 0;border-top:1px solid #e1dcec}.inline-answer[data-v-cd06afb9]{border-top:2px solid #ded7ef;padding-top:24px;margin-top:24px}.lesson-activities[data-v-cd06afb9]{margin-top:24px}.activity-composer[data-v-cd06afb9]{background:#f7f5fc;padding:20px;border:1px solid #ded7ef;border-radius:12px;margin:18px 0}.activity-pool[data-v-cd06afb9]{max-height:330px;overflow:auto;margin:16px 0}.activity-pool label[data-v-cd06afb9]{display:flex;gap:12px;padding:14px;border-bottom:1px solid #e1dcec;font-size:14px;line-height:1.6;cursor:pointer}.activity-pool input[data-v-cd06afb9]{min-width:20px;min-height:20px;align-self:flex-start}.activity-item[data-v-cd06afb9]{border-top:1px solid #e8e3ef;padding:20px 0}.activity-item h3[data-v-cd06afb9]{margin:8px 0}.activity-item details[data-v-cd06afb9]{margin-top:14px}.activity-question[data-v-cd06afb9]{padding:12px 0;display:flex;gap:16px;justify-content:space-between;align-items:flex-start}.activity-question p[data-v-cd06afb9]{white-space:pre-wrap;overflow-wrap:anywhere;flex:1}.activity-question button[data-v-cd06afb9]{flex-shrink:0}summary[data-v-cd06afb9]{cursor:pointer;min-height:44px;padding:12px 0}@media(max-width:640px){.activity-composer[data-v-cd06afb9]{padding:12px}.activity-question[data-v-cd06afb9]{flex-direction:column}}.prep-tabs[data-v-61220ba2]{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.prep-tabs button[data-v-61220ba2]{flex:1;min-height:52px;min-width:130px;font-size:16px}.prep-tabs button[aria-selected=true][data-v-61220ba2]{background:#eee8fb;color:#503a82;border-color:#8870ae}.prep-legend[data-v-61220ba2]{display:flex;flex-wrap:wrap;gap:18px;margin:20px 0 14px;font-size:13px;color:#655c78}.legend-draft[data-v-61220ba2]:before,.legend-ready[data-v-61220ba2]:before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:7px;background:#bb4268}.legend-ready[data-v-61220ba2]:before{background:#25835a}.prep-calendar[data-v-61220ba2]{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;align-items:stretch}.prep-day[data-v-61220ba2]{min-width:0;min-height:390px;padding:12px 10px;border:1px solid #e9dff0;border-radius:15px;background:#fff}.prep-day.is-today[data-v-61220ba2]{border-color:#9374ba;box-shadow:inset 0 3px #9374ba}.prep-day>h2[data-v-61220ba2]{display:flex;justify-content:space-between;gap:5px;font-size:14px;margin:0;color:#44365f}.prep-day>h2 span[data-v-61220ba2]{font-size:12px;font-weight:400;color:#756b87}.prep-day-count[data-v-61220ba2]{font-size:12px;color:#756b87;margin:5px 0 10px}.prep-day>.muted[data-v-61220ba2]{font-size:12px;text-align:center}.prep-day-courses[data-v-61220ba2]{display:grid;gap:9px}.prep-calendar .schedule-prep[data-v-61220ba2]{display:flex;flex-direction:column;align-items:flex-start;gap:5px;width:100%;min-width:0;padding:11px 9px;border:1px solid transparent;border-radius:11px;text-align:left;white-space:normal;line-height:1.65;color:#453553;box-shadow:none}.schedule-prep strong[data-v-61220ba2]{font-size:13px;font-weight:500;overflow-wrap:anywhere}.prep-calendar .prep-ready[data-v-61220ba2]{background:#edf8f1}.prep-calendar .prep-draft[data-v-61220ba2]{background:#fff0f5}.prep-calendar .prep-cancelled[data-v-61220ba2]{background:#f2f1f4}.prep-calendar .schedule-prep[data-v-61220ba2]:hover:not(:disabled){border-color:#ad8fbf;transform:translateY(-1px)}.prep-calendar .schedule-prep[data-v-61220ba2]:focus-visible{outline:3px solid #7856a3;outline-offset:2px}.prep-time[data-v-61220ba2]{font-size:13px;font-weight:700;color:#aa365a}.prep-ready .prep-time[data-v-61220ba2],.prep-ready .prep-state[data-v-61220ba2]{color:#226946}.prep-student[data-v-61220ba2],.prep-duration[data-v-61220ba2]{font-size:12px;color:#71617e}.prep-state[data-v-61220ba2]{font-size:12px;font-weight:600;color:#a2395d}.prep-card-action[data-v-61220ba2]{font-size:12px;color:#60408d}@media(max-width:760px){.prep-calendar[data-v-61220ba2]{grid-template-columns:repeat(2,minmax(0,1fr))}.prep-day[data-v-61220ba2]{min-height:180px}}@media(max-width:420px){.prep-calendar[data-v-61220ba2]{grid-template-columns:1fr}}.prep-metadata-filters[data-v-61220ba2]{display:grid;grid-template-columns:2fr 2fr 1fr;gap:12px;margin:16px 0}.prep-tag-filter[data-v-61220ba2]{margin:14px 0}.prep-tag-filter summary[data-v-61220ba2]{min-height:44px;padding:10px 0;color:#2158bd;cursor:pointer}.prep-tag-filter>button[data-v-61220ba2]{margin-top:12px}@media(max-width:700px){.prep-metadata-filters[data-v-61220ba2]{grid-template-columns:1fr}}.prep-banner[data-v-61220ba2]{background:#eee8fb;border-radius:15px;padding:28px;display:flex;gap:25px;align-items:center;justify-content:space-between;margin-bottom:23px;color:#6d519e}.prep-banner h2[data-v-61220ba2]{font-size:20px}.prep-banner p[data-v-61220ba2]{font-size:12px;margin-top:10px;color:#9b86b5}.schedule-prep h2[data-v-61220ba2]{margin:18px 0 13px}.schedule-prep p[data-v-61220ba2]{font-size:12px;color:#9993a8;display:flex;gap:8px;margin-top:7px;align-items:center}.prep-section[data-v-61220ba2]{border-top:1px solid #edebf4;margin-top:25px;padding-top:22px}.prep-section>p[data-v-61220ba2]{font-size:12px;padding:10px 0}.prep-picked[data-v-61220ba2]{display:flex;gap:10px;align-items:center;padding:10px 0;font-size:12px;border-bottom:1px solid #f4f2f8}.prep-picked>span[data-v-61220ba2]:nth-child(2){flex:1;white-space:pre-wrap;max-height:100px;overflow:auto}.prep-context-card[data-v-61220ba2]{border-color:#dfe6fb;background:linear-gradient(180deg,#fbfcff,#fff)}.prep-context-caption[data-v-61220ba2]{font-size:12px;line-height:1.65;margin:11px 0 14px}.prep-context-stats[data-v-61220ba2]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-bottom:14px}.prep-context-stats span[data-v-61220ba2]{background:#f3f6ff;border-radius:9px;color:#66708b;font-size:11px;line-height:1.45;padding:9px 7px;text-align:center}.prep-context-stats strong[data-v-61220ba2]{color:#315fd1;display:block;font-size:18px;line-height:1.15}.prep-context-details[data-v-61220ba2]{border-top:1px solid #edf0f8;padding:10px 0}.prep-context-details summary[data-v-61220ba2]{color:#303a59;cursor:pointer;font-size:12px;font-weight:600}.prep-context-details ul[data-v-61220ba2]{list-style:none;margin:8px 0 0;padding:0}.prep-context-details li[data-v-61220ba2]{align-items:flex-start;border-bottom:1px solid #f2f3f8;display:flex;font-size:11px;gap:8px;justify-content:space-between;padding:8px 0}.prep-context-details li span[data-v-61220ba2]{color:#656c80;flex:1;line-height:1.45;max-height:34px;overflow:hidden}.prep-context-details li b[data-v-61220ba2]{color:#315fd1;font-size:11px;white-space:nowrap}.prep-context-details .muted[data-v-61220ba2]{font-size:11px;margin:8px 0 2px}@media(max-width:430px){.prep-context-stats[data-v-61220ba2]{grid-template-columns:1fr}}.plan-task[data-v-61220ba2]{padding:14px 0;border-bottom:1px solid #f0edf6}.plan-task>small[data-v-61220ba2]{margin-left:25px;font-size:10px}.plan-task>.icon-button[data-v-61220ba2]{font-size:11px;margin-left:25px}.plan-task-editor[data-v-61220ba2]{display:grid;gap:12px;background:#fcfbfe}.feedback-block[data-v-61220ba2]{padding-top:15px}.feedback-block>b[data-v-61220ba2]{font-size:12px;color:#9777bd}.feedback-block>p[data-v-61220ba2]{white-space:pre-wrap;font-size:13px;margin-top:7px;color:#777386}.records-stats[data-v-1ff6fea8]{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.records-stats .hub-card[data-v-1ff6fea8]{margin:0;padding:22px}.records-stats b[data-v-1ff6fea8]{display:block;font-size:31px;color:#8c6bc4;margin:7px 0}.records-stats span[data-v-1ff6fea8]{font-size:12px;color:#8f849e}.records-stats small[data-v-1ff6fea8]{font-size:10px}.grade-chart[data-v-1ff6fea8]{width:100%;height:auto;max-height:300px}@media(max-width:850px){.records-stats[data-v-1ff6fea8]{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.records-stats[data-v-1ff6fea8]{gap:12px}.records-stats .hub-card[data-v-1ff6fea8]{padding:17px}.records-stats b[data-v-1ff6fea8]{font-size:27px}}.chat-layout[data-v-98a41989]{display:grid;grid-template-columns:290px minmax(0,1fr);border-radius:15px;overflow:hidden;border:1px solid #eae6f3;background:#fff;min-height:620px;height:calc(100vh - 210px);max-height:920px}.chat-sidebar[data-v-98a41989]{overflow:auto;border-right:1px solid #eeeaf5;background:#fff}.chat-search[data-v-98a41989]{display:flex;align-items:center;gap:10px;margin:19px;background:#f8f6fc;border-radius:9px;padding:0 12px;color:#ad9cbf}.chat-search input[data-v-98a41989]{border:0!important;background:transparent!important;font-size:12px!important}.chat-sidebar>.nav-caption[data-v-98a41989]{padding:0 20px 10px}.learning-shell .conversation[data-v-98a41989]{display:flex;width:100%;align-items:center;border:0;gap:12px;border-radius:0;padding:19px;text-align:left;background:#fff;border-bottom:1px solid #f8f5fb}.conversation.selected[data-v-98a41989]{background:#f1ecfb}.conversation>span[data-v-98a41989]:nth-child(2){flex:1;min-width:0}.conversation b[data-v-98a41989]{font-size:12px;font-weight:600;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conversation small[data-v-98a41989]{font-size:10px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:4px}.unread[data-v-98a41989]{background:#ad86e1;color:#fff;font-size:9px;border-radius:20px;min-width:17px;padding:1px 4px;text-align:center;font-style:normal}.chat-panel[data-v-98a41989]{display:flex;flex-direction:column;min-width:0;height:100%;overflow:hidden}.chat-panel>header[data-v-98a41989]{padding:19px 24px;display:flex;justify-content:space-between;align-items:center;background:#fff;gap:20px}.chat-panel>header h2[data-v-98a41989]{font-size:15px}.chat-panel>header small[data-v-98a41989]{font-size:10px}.chat-panel>header button[data-v-98a41989]{font-size:10px;padding:6px 10px}.chat-messages[data-v-98a41989]{flex:1;overflow:auto;min-height:150px;padding:24px;background:#f7f5fc}.chat-context[data-v-98a41989]{font-size:11px;background:#efeaf7;color:#a08eb6;padding:13px 17px;border-radius:9px;white-space:pre-wrap;margin-bottom:20px!important}.chat-message[data-v-98a41989]{display:flex;gap:10px;margin-bottom:25px;align-items:flex-start}.chat-message>div[data-v-98a41989]{max-width:80%}.chat-message .avatar[data-v-98a41989]{width:30px;height:30px;border-radius:50%;font-size:12px}.chat-message small[data-v-98a41989]{font-size:9px;display:block;margin-bottom:5px}.chat-bubble[data-v-98a41989]{background:#fff;border-radius:0 11px 11px;padding:12px 16px;color:#736780;font-size:13px;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 2px 7px #41315203}.chat-message.mine[data-v-98a41989]{flex-direction:row-reverse}.chat-message.mine>div>small[data-v-98a41989]{text-align:right}.chat-message.mine .chat-bubble[data-v-98a41989]{background:#aa8cda;color:#fff;border-radius:11px 0 11px 11px}.chat-attachment[data-v-98a41989]{display:flex;margin-top:8px;max-width:100%;font-size:12px!important;overflow-wrap:anywhere}.chat-composer[data-v-98a41989]{padding:15px 23px 20px;border-top:1px solid #f0ebf5}.chat-composer small[data-v-98a41989]{font-size:9px}.chat-composer textarea[data-v-98a41989]{border:0!important;min-height:85px;max-height:120px;padding:12px 0!important;font-size:12px!important;resize:none}.attach-button[data-v-98a41989]{position:relative;display:flex;align-items:center;gap:7px;overflow:hidden;cursor:pointer;color:#a38ebb;font-size:11px}.attach-button input[data-v-98a41989]{position:absolute;opacity:0;inset:0;width:100%;cursor:pointer}.chat-welcome[data-v-98a41989]{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:#faf8fe;color:#b4a0ca;text-align:center;padding:30px}.chat-welcome h2[data-v-98a41989]{font-size:20px;color:#95819f}.chat-welcome p[data-v-98a41989]{font-size:12px}.help-tip[data-v-98a41989]{display:flex;gap:17px;margin-top:24px}.help-tip b[data-v-98a41989]{color:#c3a7dc;font-size:24px;font-weight:400}.help-tip p[data-v-98a41989]{font-size:12px;color:#9a8ca8}.history-button[data-v-98a41989]{margin:0 auto 20px;display:block!important;font-size:11px!important}@media(max-width:1100px){.chat-layout[data-v-98a41989]{grid-template-columns:230px minmax(0,1fr)}}@media(max-width:800px){.chat-layout[data-v-98a41989]{grid-template-columns:1fr;height:auto}.chat-sidebar[data-v-98a41989]{max-height:220px;border-bottom:1px solid #ece8f4;border-right:0}.chat-panel[data-v-98a41989]{height:650px}.chat-composer[data-v-98a41989]{padding:13px 16px}.chat-messages[data-v-98a41989]{padding:20px 16px}.chat-composer .hub-row>small[data-v-98a41989]{max-width:55%}.chat-welcome[data-v-98a41989]{min-height:350px}}@media(max-width:700px){.chat-search input[data-v-98a41989],.chat-composer textarea[data-v-98a41989]{font-size:16px!important}}.portfolio-page[data-v-1eeadcfb]{color:#193b57;display:grid;gap:20px}.portfolio-heading[data-v-1eeadcfb],.portfolio-profile[data-v-1eeadcfb],.portfolio-section-heading[data-v-1eeadcfb]{display:flex;justify-content:space-between;align-items:center;gap:16px}.portfolio-heading h1[data-v-1eeadcfb]{font-size:27px;color:#193b57;margin:4px 0 8px}.portfolio-heading p[data-v-1eeadcfb],.portfolio-profile p[data-v-1eeadcfb]{color:#637e93;font-size:13px;margin:0;line-height:1.65}.portfolio-heading .portfolio-eyebrow[data-v-1eeadcfb]{color:#2879c9;font-size:11px;font-weight:750;letter-spacing:.1em}.portfolio-select[data-v-1eeadcfb]{display:flex;align-items:center;gap:14px;padding:16px}.portfolio-select label[data-v-1eeadcfb]{flex-shrink:0;white-space:nowrap;font-size:13px;font-weight:700;color:#234862}.portfolio-select span[data-v-1eeadcfb]{font-size:12px;color:#6b8294}.portfolio-select select[data-v-1eeadcfb],.portfolio-filters select[data-v-1eeadcfb],.portfolio-filters input[data-v-1eeadcfb]{border:1px solid #dbe7f0;background:#fff;color:#254962;border-radius:11px;padding:10px 12px;font:inherit;font-size:13px;min-width:0}.portfolio-profile[data-v-1eeadcfb]{justify-content:flex-start;padding:2px}.portfolio-profile h2[data-v-1eeadcfb]{font-size:18px;color:#193b57;margin:0 0 5px}.portfolio-badge[data-v-1eeadcfb]{margin-left:auto;background:#e5f4fc;color:#2877a9;border:1px solid #d5eaf6;border-radius:20px;font-size:11px;padding:7px 11px}.portfolio-stats[data-v-1eeadcfb]{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.portfolio-stats article[data-v-1eeadcfb]{display:flex;align-items:center;gap:12px;padding:16px 12px}.portfolio-stats>.hub-card[data-v-1eeadcfb],.portfolio-next-grid>.hub-card[data-v-1eeadcfb]{margin:0}.portfolio-stats strong[data-v-1eeadcfb]{display:block;font-size:24px;line-height:1.2;color:#204965;font-variant-numeric:tabular-nums}.portfolio-stats span[data-v-1eeadcfb]{display:block;font-size:11px;color:#6a8298;margin-top:5px}.portfolio-section-heading h2[data-v-1eeadcfb]{color:#21435e;font-size:17px;margin:0}.portfolio-section-heading>span[data-v-1eeadcfb]{font-size:12px;color:#7890a3}.portfolio-next-grid[data-v-1eeadcfb]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:12px}.portfolio-next-card[data-v-1eeadcfb]{display:flex;text-align:left;align-items:center;gap:12px;padding:18px;color:#244660;cursor:pointer;font:inherit}.portfolio-next-card>span[data-v-1eeadcfb]{flex:1;min-width:0}.portfolio-next-card strong[data-v-1eeadcfb]{display:block;font-size:14px;color:#244660}.portfolio-next-card small[data-v-1eeadcfb]{display:block;color:#647e94;font-size:12px;line-height:1.7;margin-top:7px}.portfolio-method[data-v-1eeadcfb]{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;background:#f3f9ff;color:#3b76a4}.portfolio-method strong[data-v-1eeadcfb]{font-size:13px;color:#315f84}.portfolio-method p[data-v-1eeadcfb]{font-size:12px;line-height:1.8;color:#628199;margin:5px 0 0}.portfolio-timeline[data-v-1eeadcfb]{padding:22px}.portfolio-filters[data-v-1eeadcfb]{display:grid;grid-template-columns:160px 150px 1fr;gap:12px;margin-top:20px}.portfolio-scope[data-v-1eeadcfb]{font-size:11px;color:#7990a3;line-height:1.7;margin:12px 0 24px}.portfolio-events[data-v-1eeadcfb]{list-style:none;padding:0;margin:0}.portfolio-events>li[data-v-1eeadcfb]{display:flex;gap:15px;padding:0 0 25px;margin-bottom:24px;border-bottom:1px solid #e9f0f6}.portfolio-events>li[data-v-1eeadcfb]:last-child{margin-bottom:0;border-bottom:0;padding-bottom:0}.portfolio-event-content[data-v-1eeadcfb]{flex:1;min-width:0}.portfolio-event-meta[data-v-1eeadcfb]{display:flex;gap:10px;flex-wrap:wrap;font-size:11px;line-height:1.6;color:#708ba0}.portfolio-event-meta span[data-v-1eeadcfb]:first-child{color:#3a7eae;font-weight:650}.portfolio-event-meta time[data-v-1eeadcfb]{margin-left:auto;font-variant-numeric:tabular-nums}.portfolio-event-content h3[data-v-1eeadcfb]{color:#234762;font-size:14px;line-height:1.7;margin:7px 0;overflow-wrap:anywhere}.portfolio-event-content>p[data-v-1eeadcfb]{color:#657e93;font-size:13px;line-height:1.8;white-space:pre-wrap;margin:0;overflow-wrap:anywhere}.portfolio-event-bottom[data-v-1eeadcfb]{display:flex;align-items:center;gap:12px;margin-top:10px}.portfolio-state[data-v-1eeadcfb]{font-size:11px;color:#438077;padding:4px 8px;background:#edf9f5;border-radius:6px}.portfolio-link[data-v-1eeadcfb]{font:inherit;font-size:12px;display:flex;align-items:center;gap:6px;color:#2f7cbd;background:none;border:0;padding:5px;cursor:pointer}.portfolio-event-content details[data-v-1eeadcfb]{font-size:12px;color:#496c88;margin-top:12px}.portfolio-event-content summary[data-v-1eeadcfb]{cursor:pointer;padding:5px 0;color:#457497}.portfolio-event-content dl[data-v-1eeadcfb]{display:grid;grid-template-columns:95px 1fr;gap:10px;background:#f7fafc;border-radius:10px;padding:14px;margin:6px 0 0}.portfolio-event-content dt[data-v-1eeadcfb]{color:#66859b}.portfolio-event-content dd[data-v-1eeadcfb]{color:#395c76;margin:0;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.portfolio-empty[data-v-1eeadcfb]{text-align:center;padding:36px 20px;color:#688094;font-size:13px}.portfolio-empty h3[data-v-1eeadcfb]{color:#31536c;font-size:16px}.portfolio-empty p[data-v-1eeadcfb]{color:#788fa2;line-height:1.8}.portfolio-error[data-v-1eeadcfb]{border:1px solid #edc8c6;border-radius:12px;background:#fff5f4;color:#ab4640;padding:15px;font-size:13px}.portfolio-note[data-v-1eeadcfb]{margin:0;color:#8b7352;font-size:12px;line-height:1.8}button[data-v-1eeadcfb]:focus-visible,select[data-v-1eeadcfb]:focus-visible,input[data-v-1eeadcfb]:focus-visible,summary[data-v-1eeadcfb]:focus-visible{outline:3px solid #86befe;outline-offset:3px}@media(max-width:1150px){.portfolio-stats[data-v-1eeadcfb]{grid-template-columns:repeat(3,minmax(0,1fr))}.portfolio-next-grid[data-v-1eeadcfb]{grid-template-columns:1fr}.portfolio-next-card[data-v-1eeadcfb]{padding:15px}.portfolio-next-card small[data-v-1eeadcfb]{margin-top:4px}}@media(max-width:620px){.portfolio-heading[data-v-1eeadcfb]{align-items:flex-start}.portfolio-heading h1[data-v-1eeadcfb]{font-size:23px}.portfolio-heading>.hub-btn[data-v-1eeadcfb]{padding:8px;white-space:nowrap}.portfolio-stats[data-v-1eeadcfb]{grid-template-columns:repeat(2,minmax(0,1fr))}.portfolio-stats article[data-v-1eeadcfb]{padding:14px 10px}.portfolio-badge[data-v-1eeadcfb]{display:none}.portfolio-select[data-v-1eeadcfb]{flex-wrap:wrap}.portfolio-select select[data-v-1eeadcfb]{flex:1}.portfolio-select span[data-v-1eeadcfb]{width:100%}.portfolio-filters[data-v-1eeadcfb]{grid-template-columns:1fr 1fr}.portfolio-filters input[data-v-1eeadcfb]{grid-column:1/-1}.portfolio-timeline[data-v-1eeadcfb]{padding:16px}.portfolio-event-meta time[data-v-1eeadcfb]{margin-left:0;width:100%}.portfolio-event-content dl[data-v-1eeadcfb]{grid-template-columns:1fr;gap:5px}.portfolio-event-content dd[data-v-1eeadcfb]{margin-bottom:8px}.portfolio-event-icon .hub-icon[data-v-1eeadcfb]{width:32px;height:32px}.portfolio-events>li[data-v-1eeadcfb]{gap:10px}.portfolio-section-heading>span[data-v-1eeadcfb]{font-size:11px}}@media(prefers-reduced-motion:reduce){[data-v-1eeadcfb]{animation:none!important;transition:none!important}}.reviews-layout[data-v-4e4d34a4]{display:grid;grid-template-columns:270px minmax(0,1fr);align-items:start;gap:20px}.review-queue h2[data-v-4e4d34a4]{margin-bottom:15px}.learning-shell .review-queue-item[data-v-4e4d34a4]{display:flex;flex-direction:column;align-items:flex-start;gap:5px;text-align:left;width:100%;margin-top:10px;min-width:0;border-radius:14px;padding:13px}.review-queue-item b[data-v-4e4d34a4]{font-size:13px;overflow-wrap:anywhere}.review-queue-item span[data-v-4e4d34a4],.review-queue-item small[data-v-4e4d34a4]{font-size:11px;color:#526782}.learning-shell .review-queue-item.selected[data-v-4e4d34a4]{background:#edf5ff;border-color:#94b8ef;color:#214c85}.review-entry[data-v-4e4d34a4]{padding:23px 0;border-top:1px solid #e8eef6;margin-top:20px}.student-answer[data-v-4e4d34a4]{background:#f3f7fc;border-radius:13px;padding:16px;margin-top:16px}.review-overview[data-v-4e4d34a4]{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:16px 0}.review-overview>div[data-v-4e4d34a4]{display:grid;gap:5px;min-height:72px;align-content:center;padding:12px 14px;border:1px solid #e1e9f5;border-radius:12px;background:#f8fbff}.review-overview span[data-v-4e4d34a4]{color:#63758e;font-size:12px}.review-overview strong[data-v-4e4d34a4]{color:#173f77;font-size:22px}.ai-review-suggestion[data-v-4e4d34a4]{margin-top:12px;padding:14px 16px;border:1px solid #cfe0ff;border-radius:13px;background:#f4f8ff}.ai-review-suggestion strong[data-v-4e4d34a4]{color:#24599d;font-size:12px}.ai-review-suggestion p[data-v-4e4d34a4]{margin:7px 0 4px;line-height:1.7;white-space:pre-wrap}.ai-review-suggestion small[data-v-4e4d34a4]{color:#6c7e96}.review-error[data-v-4e4d34a4]{display:flex;align-items:center;justify-content:space-between;gap:14px}.review-error button[data-v-4e4d34a4]{flex:0 0 auto;min-height:40px}.student-answer strong[data-v-4e4d34a4],.review-comment strong[data-v-4e4d34a4]{font-size:12px}.student-answer p[data-v-4e4d34a4],.review-comment p[data-v-4e4d34a4]{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:8px;line-height:1.8}.review-mark-fields[data-v-4e4d34a4]{display:grid;grid-template-columns:160px minmax(0,1fr);gap:18px;margin-top:18px}.review-mark-fields textarea[data-v-4e4d34a4]{min-height:108px}.review-toolbar[data-v-4e4d34a4]{display:flex;gap:10px;align-items:center;justify-content:flex-end;flex-wrap:wrap;padding-top:18px;border-top:1px solid #e8eef6}.review-toolbar span[data-v-4e4d34a4]{margin-right:auto;color:#5b6e87;font-size:12px}.review-award[data-v-4e4d34a4]{display:flex;gap:12px;align-items:center;margin:16px 0 12px!important;color:#225db5}.review-award span[data-v-4e4d34a4]{font-size:12px}.review-comment[data-v-4e4d34a4]{border-left:3px solid #3c7cde;padding:5px 0 5px 14px}.review-detail[data-v-4e4d34a4]{margin-top:0!important}@media(max-width:1050px){.reviews-layout[data-v-4e4d34a4]{grid-template-columns:1fr}.review-queue[data-v-4e4d34a4]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.review-queue>h2[data-v-4e4d34a4],.review-queue>.hub-empty[data-v-4e4d34a4],.review-queue>.hub-pagination[data-v-4e4d34a4]{grid-column:1 / -1}.learning-shell .review-queue-item[data-v-4e4d34a4]{margin-top:0}}@media(max-width:700px){.review-queue[data-v-4e4d34a4]{grid-template-columns:1fr}.review-mark-fields[data-v-4e4d34a4]{grid-template-columns:1fr;gap:12px}.review-toolbar span[data-v-4e4d34a4]{width:100%}.review-toolbar>button[data-v-4e4d34a4]{flex:1}.review-detail .card-heading[data-v-4e4d34a4]{align-items:flex-start;flex-wrap:wrap}.review-overview[data-v-4e4d34a4]{grid-template-columns:repeat(2,minmax(0,1fr))}.review-error[data-v-4e4d34a4]{align-items:flex-start;flex-direction:column}}.classroom-card h2[data-v-df7fee09],.record-heading h2[data-v-df7fee09]{margin:15px 0 10px}.classroom-card p[data-v-df7fee09],.record-heading p[data-v-df7fee09]{margin-bottom:10px}.classroom-card.is-ready[data-v-df7fee09]{border-color:#53a983;background:#f3fbf6}.classroom-filters[data-v-df7fee09]{margin:20px 0}.classroom-filters button[aria-pressed=true][data-v-df7fee09]{background:#eee8fb;color:#503a82;border-color:#8870ae}.record-heading[data-v-df7fee09]{margin-bottom:20px}.account-page[data-v-82b79fb9]{max-width:1180px}.account-balance-grid[data-v-82b79fb9]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:18px}.balance-main[data-v-82b79fb9],.balance-item[data-v-82b79fb9]{display:grid;gap:8px;min-height:136px;align-content:center}.balance-main[data-v-82b79fb9]{background:linear-gradient(135deg,#eaf3ff,#f8fbff)}.balance-main span[data-v-82b79fb9],.balance-item span[data-v-82b79fb9]{color:#58708e}.balance-main strong[data-v-82b79fb9]{color:#135dc7;font-size:34px}.balance-item strong[data-v-82b79fb9]{color:#163c73;font-size:25px}.balance-main small[data-v-82b79fb9],.balance-item small[data-v-82b79fb9],.transaction-row small[data-v-82b79fb9]{color:#7b8aa1}.withdrawal-card[data-v-82b79fb9]{padding:22px;margin-bottom:18px}.withdrawal-summary[data-v-82b79fb9]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0}.withdrawal-summary>div[data-v-82b79fb9]{display:grid;gap:5px;min-height:84px;align-content:center;padding:13px 15px;border:1px solid #e0e9f5;border-radius:13px;background:#f8fbff}.withdrawal-summary span[data-v-82b79fb9],.withdrawal-history small[data-v-82b79fb9],.withdrawal-history p[data-v-82b79fb9],.bank-binding>p[data-v-82b79fb9],.withdrawal-form>div p[data-v-82b79fb9],.form-hint[data-v-82b79fb9]{color:#6d7f96;font-size:12px}.withdrawal-summary strong[data-v-82b79fb9]{color:#173f77;font-size:21px}.withdrawal-workspace[data-v-82b79fb9]{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:16px;align-items:start}.withdrawal-form[data-v-82b79fb9],.bank-binding[data-v-82b79fb9]{padding:18px;border:1px solid #e1e9f4;border-radius:15px;background:#fff}.withdrawal-form[data-v-82b79fb9]{display:grid;gap:14px}.withdrawal-form h3[data-v-82b79fb9],.withdrawal-history h3[data-v-82b79fb9]{margin:0}.withdrawal-form textarea[data-v-82b79fb9]{min-height:76px}.bank-binding summary[data-v-82b79fb9]{min-height:44px;display:flex;align-items:center;color:#214f8b;font-weight:700;cursor:pointer}.bank-binding form[data-v-82b79fb9]{display:grid;gap:12px;margin-top:14px}.amount-input[data-v-82b79fb9]{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;border:1px solid #ced9e8;border-radius:11px;overflow:hidden;background:#fff}.amount-input[data-v-82b79fb9]:focus-within{border-color:#4b83d2;box-shadow:0 0 0 3px #4b83d224}.amount-input>span[data-v-82b79fb9]{padding-left:13px;color:#49627f}.amount-input input[data-v-82b79fb9]{min-width:0;border:0;box-shadow:none}.amount-input button[data-v-82b79fb9]{min-height:42px;margin-right:4px;white-space:nowrap}.withdrawal-submit[data-v-82b79fb9]{min-height:46px}.field-error[data-v-82b79fb9]{margin:-5px 0 0;color:#b63f3f;font-size:12px}.withdrawal-history[data-v-82b79fb9]{margin-top:22px;border-top:1px solid #e6edf6;padding-top:18px}.withdrawal-history article[data-v-82b79fb9]{padding:15px 0;border-top:1px solid #edf1f7}.withdrawal-record-main[data-v-82b79fb9]{display:flex;justify-content:space-between;gap:14px}.withdrawal-record-main>div[data-v-82b79fb9]{display:grid;gap:4px}.withdrawal-record-main>div>span[data-v-82b79fb9]{color:#405b7b;font-size:13px}.withdrawal-status[data-v-82b79fb9]{align-self:flex-start;padding:5px 9px;border-radius:999px;background:#eaf2ff;color:#235caa;font-size:12px;white-space:nowrap}.status-paid[data-v-82b79fb9]{background:#e8f7ef;color:#18764f}.status-rejected[data-v-82b79fb9],.status-failed[data-v-82b79fb9],.status-cancelled[data-v-82b79fb9]{background:#fff0ed;color:#b34536}.withdrawal-history article>p[data-v-82b79fb9]{margin:9px 0 0}.withdrawal-load-error[data-v-82b79fb9]{display:flex;align-items:center;justify-content:space-between;gap:12px}.withdrawal-dialog dl[data-v-82b79fb9]{display:grid;gap:0;margin:18px 0;border:1px solid #e0e8f3;border-radius:13px;overflow:hidden}.withdrawal-dialog dl>div[data-v-82b79fb9]{display:grid;grid-template-columns:100px minmax(0,1fr);gap:14px;padding:12px 14px;border-top:1px solid #e8eef6}.withdrawal-dialog dl>div[data-v-82b79fb9]:first-child{border-top:0}.withdrawal-dialog dt[data-v-82b79fb9]{color:#6b7d94}.withdrawal-dialog dd[data-v-82b79fb9]{margin:0;color:#173f77;font-weight:700}.transaction-card[data-v-82b79fb9]{padding:22px}.transaction-list[data-v-82b79fb9]{display:grid}.transaction-row[data-v-82b79fb9]{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-top:1px solid #edf1f7}.transaction-row>div[data-v-82b79fb9]{display:grid;gap:5px}.transaction-row b[data-v-82b79fb9]{align-self:center;white-space:nowrap}.transaction-row b small[data-v-82b79fb9]{display:block;font-size:12px;font-weight:400;margin-top:4px}.positive[data-v-82b79fb9]{color:#159466}.negative[data-v-82b79fb9]{color:#c64d4d}.hub-alert button[data-v-82b79fb9]{margin-left:8px}@media(max-width:760px){.account-balance-grid[data-v-82b79fb9],.withdrawal-summary[data-v-82b79fb9],.withdrawal-workspace[data-v-82b79fb9]{grid-template-columns:1fr}.withdrawal-record-main[data-v-82b79fb9]{align-items:flex-start}.withdrawal-dialog dl>div[data-v-82b79fb9]{grid-template-columns:1fr;gap:3px}.transaction-row[data-v-82b79fb9]{align-items:flex-start}}.settings-page[data-v-793321d2]{max-width:1180px}.settings-grid[data-v-793321d2]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.setting-card[data-v-793321d2]{padding:22px}.setting-card dl[data-v-793321d2]{display:grid;gap:0;margin:8px 0 0}.setting-card dl div[data-v-793321d2]{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-top:1px solid #edf1f7}.setting-card dt[data-v-793321d2]{color:#7b8aa1}.setting-card dd[data-v-793321d2]{margin:0;text-align:right;color:#203657}.device-status[data-v-793321d2]{min-height:52px;padding:14px;border-radius:12px;background:#f5f8fc;color:#546882}.device-status[data-state=ready][data-v-793321d2]{color:#14845c;background:#edfaf4}.device-status[data-state=blocked][data-v-793321d2]{color:#b64e4e;background:#fff2f2}.setting-hint[data-v-793321d2]{display:block;margin-top:12px;color:#8390a4}@media(max-width:760px){.settings-grid[data-v-793321d2]{grid-template-columns:1fr}.setting-card dl div[data-v-793321d2]{display:grid;gap:5px}.setting-card dd[data-v-793321d2]{text-align:left}}.whiteboard[data-v-ad488fd2]{--board-primary: #5f55c8;--board-border: #dce1ee;--board-muted: #606b82;min-width:0;border:1px solid var(--board-border);border-radius:20px;background:#f7f8fc;overflow:hidden}.whiteboard-head[data-v-ad488fd2]{min-height:58px;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border-bottom:1px solid var(--board-border)}.whiteboard-head>div[data-v-ad488fd2]:first-child{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.permission[data-v-ad488fd2]{padding:4px 9px;border-radius:999px;background:#eef0f5;color:#566074;font-size:12px}.permission.writable[data-v-ad488fd2]{background:#e6f7f0;color:#147257}.sync-state[data-v-ad488fd2]{color:var(--board-muted);font-size:12px}.board-error[data-v-ad488fd2],.board-loading[data-v-ad488fd2]{margin:12px;padding:10px 12px;border-radius:10px}.board-error[data-v-ad488fd2]{color:#9c3142;background:#fff0f2}.board-error button[data-v-ad488fd2]{border:0;background:transparent;color:#713ec1;text-decoration:underline;cursor:pointer}.board-loading[data-v-ad488fd2]{color:var(--board-muted);background:#fff}.whiteboard-body[data-v-ad488fd2]{min-height:520px;display:grid;grid-template-columns:112px minmax(0,1fr)}.page-rail[data-v-ad488fd2]{padding:12px 10px;display:flex;flex-direction:column;gap:9px;background:#f0f2f8;border-right:1px solid var(--board-border);overflow-y:auto}.page-item[data-v-ad488fd2],.add-page[data-v-ad488fd2]{width:100%;min-height:52px;border:1px solid #d7dcea;border-radius:12px;background:#fff;color:#3e4658;cursor:pointer}.page-item[data-v-ad488fd2]{padding:8px;display:grid;grid-template-columns:24px minmax(0,1fr);align-items:center;gap:6px;text-align:left}.page-item>span[data-v-ad488fd2]{display:grid;place-items:center;width:24px;height:24px;border-radius:7px;background:#eef0f6;font-weight:700}.page-item small[data-v-ad488fd2]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-item.active[data-v-ad488fd2]{border-color:var(--board-primary);box-shadow:0 0 0 2px #5f55c821}.page-item.active>span[data-v-ad488fd2]{background:var(--board-primary);color:#fff}.board-workspace[data-v-ad488fd2]{min-width:0;display:flex;flex-direction:column}.toolbar[data-v-ad488fd2]{padding:8px 12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fff;border-bottom:1px solid var(--board-border)}.tool-group[data-v-ad488fd2]{display:flex;gap:6px;flex-wrap:wrap}.toolbar button[data-v-ad488fd2],.teacher-board-actions button[data-v-ad488fd2]{min-height:44px;padding:8px 12px;border:1px solid #d7dcea;border-radius:10px;background:#fff;color:#353d50;cursor:pointer}.toolbar button[aria-pressed=true][data-v-ad488fd2]{border-color:var(--board-primary);background:#eeecff;color:#493eaf;font-weight:700}.toolbar button[data-v-ad488fd2]:disabled,.teacher-board-actions button[data-v-ad488fd2]:disabled,.add-page[data-v-ad488fd2]:disabled{opacity:.45;cursor:not-allowed}.toolbar button[data-v-ad488fd2]:focus-visible,.teacher-board-actions button[data-v-ad488fd2]:focus-visible,.page-item[data-v-ad488fd2]:focus-visible,.add-page[data-v-ad488fd2]:focus-visible,input[data-v-ad488fd2]:focus-visible{outline:3px solid rgb(53 110 230 / 35%);outline-offset:2px}.color-control[data-v-ad488fd2],.width-control[data-v-ad488fd2]{min-height:44px;display:flex;align-items:center;gap:7px;color:var(--board-muted);font-size:12px}.color-control input[data-v-ad488fd2]{width:38px;height:38px;padding:3px;border:1px solid #d7dcea;border-radius:9px;background:#fff}.width-control input[data-v-ad488fd2]{width:90px}.canvas-frame[data-v-ad488fd2]{position:relative;margin:14px;flex:1;min-height:420px;aspect-ratio:16 / 10;border:1px solid #cfd5e3;border-radius:14px;background:#fff;overflow:hidden;box-shadow:0 10px 30px #25304b1a;touch-action:none}.canvas-frame.readonly[data-v-ad488fd2]{cursor:default}.canvas-frame>img[data-v-ad488fd2],.question-paper[data-v-ad488fd2],.blank-paper[data-v-ad488fd2],.canvas-frame>canvas[data-v-ad488fd2]{position:absolute;inset:0;width:100%;height:100%}.canvas-frame>img[data-v-ad488fd2]{object-fit:contain;background:#fff;-webkit-user-select:none;user-select:none;pointer-events:none}.question-paper[data-v-ad488fd2]{padding:clamp(32px,6vw,72px);overflow:auto;background:#fff;color:#20283b;line-height:1.8}.question-number[data-v-ad488fd2]{margin:0 0 16px;color:#6656c7;font-size:13px;font-weight:700}.question-stem[data-v-ad488fd2]{display:block;font-size:clamp(16px,2vw,24px);font-weight:600}.question-options[data-v-ad488fd2]{margin:20px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px;list-style:none}.question-options li[data-v-ad488fd2]{display:flex;gap:8px}.blank-paper[data-v-ad488fd2]{background-color:#fff;background-image:linear-gradient(#edf0f6 1px,transparent 1px),linear-gradient(90deg,#edf0f6 1px,transparent 1px);background-size:24px 24px}.canvas-frame>canvas[data-v-ad488fd2]{cursor:crosshair}.canvas-frame>canvas.eraser[data-v-ad488fd2]{cursor:cell}.background-label[data-v-ad488fd2]{position:absolute;top:10px;left:12px;padding:4px 8px;border-radius:7px;background:#232b3eb3;color:#fff;font-size:12px;pointer-events:none}.teacher-board-actions[data-v-ad488fd2]{padding:10px 12px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--board-border);background:#fff}.background-actions[data-v-ad488fd2]{display:flex;gap:8px;flex-wrap:wrap}.teacher-board-actions button.danger[data-v-ad488fd2]{color:#a73749;border-color:#edc9d0}.student-permission[data-v-ad488fd2]{min-height:44px;display:flex;align-items:center;gap:8px;color:#343d51}.student-permission input[data-v-ad488fd2]{width:19px;height:19px}.question-picker[data-v-ad488fd2]{margin:0 12px 12px;padding:12px;max-height:320px;overflow-y:auto;border:1px solid var(--board-border);border-radius:14px;background:#fff}.question-picker-head[data-v-ad488fd2]{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.question-picker-head button[data-v-ad488fd2],.question-choice[data-v-ad488fd2]{min-height:44px;border:1px solid #d7dcea;border-radius:10px;background:#fff;color:#353d50;cursor:pointer}.question-picker-head button[data-v-ad488fd2]{padding:8px 14px}.question-choice[data-v-ad488fd2]{width:100%;margin-top:8px;padding:10px 12px;display:flex;gap:8px;text-align:left}.question-choice span[data-v-ad488fd2]{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.sr-only[data-v-ad488fd2]{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:760px){.whiteboard-body[data-v-ad488fd2]{grid-template-columns:1fr}.page-rail[data-v-ad488fd2]{flex-direction:row;border-right:0;border-bottom:1px solid var(--board-border);overflow-x:auto}.page-item[data-v-ad488fd2],.add-page[data-v-ad488fd2]{min-width:104px}.canvas-frame[data-v-ad488fd2]{min-height:300px;margin:8px}.whiteboard-head[data-v-ad488fd2],.teacher-board-actions[data-v-ad488fd2]{align-items:flex-start}}@media(prefers-reduced-motion:reduce){[data-v-ad488fd2],[data-v-ad488fd2]:before,[data-v-ad488fd2]:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}.classroom-panel[data-v-e8c0bea9]{max-width:1400px;margin:0 auto}.classroom-heading[data-v-e8c0bea9]{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.classroom-heading h1[data-v-e8c0bea9]{margin:4px 0 10px;font-size:28px}.classroom-meta[data-v-e8c0bea9]{color:#71738b;font-size:14px}.classroom-back[data-v-e8c0bea9]{color:#6656c7;white-space:nowrap;text-decoration:none}.classroom-status[data-v-e8c0bea9]{display:flex;justify-content:space-between;gap:12px;padding:16px 0;font-size:14px;color:#72788f}.classroom-status .live[data-v-e8c0bea9]{color:#14866a}.classroom-stage[data-v-e8c0bea9]{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:16px;align-items:start}.video-sidebar[data-v-e8c0bea9]{display:grid;gap:12px}.remote-stage[data-v-e8c0bea9]{position:relative;min-height:150px;border-radius:18px;background:#202638;overflow:hidden}.remote-grid[data-v-e8c0bea9]{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));min-height:inherit}.remote-grid[data-v-e8c0bea9] .remote-stream{width:100%;min-height:150px}.video-placeholder[data-v-e8c0bea9]{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;color:#c9d0e2;text-align:center;padding:16px}.video-placeholder>span[data-v-e8c0bea9]{display:grid;place-items:center;width:48px;height:48px;background:#675f99;color:#fff;border-radius:16px;font-size:22px}.video-placeholder p[data-v-e8c0bea9]{font-size:14px;color:#979fb5}.local-stage[data-v-e8c0bea9]{position:relative;height:190px;border-radius:18px;background:#353c50;overflow:hidden}.local-video[data-v-e8c0bea9]{position:absolute;inset:0}.local-placeholder[data-v-e8c0bea9]{position:absolute;inset:0;display:grid;place-items:center;color:#bfc7db;font-size:13px}.video-label[data-v-e8c0bea9]{position:absolute;bottom:10px;left:12px;color:#fff;font-size:12px}.classroom-controls[data-v-e8c0bea9]{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;padding:24px 0}.classroom-controls button[data-v-e8c0bea9],.classroom-error button[data-v-e8c0bea9]{border:1px solid #dcdbea;border-radius:12px;padding:12px 20px;background:#fff;color:#44475d;cursor:pointer}.classroom-controls .primary[data-v-e8c0bea9]{background:#7260d8;color:#fff;border-color:#7260d8}.classroom-controls .leave[data-v-e8c0bea9]{color:#b74153;border-color:#efc5cc}.classroom-controls button[data-v-e8c0bea9]:disabled{opacity:.5;cursor:not-allowed}.classroom-controls button[aria-pressed=true][data-v-e8c0bea9]{background:#eeebff;border-color:#9d90dc}.classroom-error[data-v-e8c0bea9]{background:#fff1f1;color:#a93444;padding:14px;border-radius:12px}.classroom-notice[data-v-e8c0bea9]{background:#fff5dc;color:#846322;padding:12px 16px;border-radius:12px}.classroom-media[data-v-e8c0bea9]{margin-top:8px;padding:22px;border:1px solid #e4e1ef;border-radius:20px;background:#fff;box-shadow:0 12px 30px #4a41630a}.media-heading[data-v-e8c0bea9]{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.media-heading h2[data-v-e8c0bea9]{margin:3px 0 0;font-size:20px}.media-heading>span[data-v-e8c0bea9]{padding:7px 10px;border-radius:99px;color:#6656c7;background:#f0edff;font-size:12px;font-weight:800}.recording-banner[data-v-e8c0bea9]{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:16px;padding:16px;border:1px solid #eaddeb;border-radius:15px;background:#fff8fb}.recording-banner.active[data-v-e8c0bea9]{border-color:#f3b7c1;background:#fff1f3}.recording-banner b[data-v-e8c0bea9]{color:#5f2d3c}.recording-banner p[data-v-e8c0bea9]{margin:5px 0 0;color:#82727c;font-size:13px;line-height:1.55}.record-button[data-v-e8c0bea9]{min-width:120px;min-height:44px;border:0;border-radius:12px;color:#fff;background:#d75569;font-weight:800;cursor:pointer}.record-button.stop[data-v-e8c0bea9]{color:#a93648;background:#fff;border:1px solid #e6a3ad}.record-button[data-v-e8c0bea9]:disabled{cursor:not-allowed;opacity:.5}.media-status[data-v-e8c0bea9]{margin:10px 0 0;color:#665f79;font-size:13px}.recording-list[data-v-e8c0bea9]{display:grid;gap:10px;margin-top:14px}.recording-card[data-v-e8c0bea9]{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:14px;border:1px solid #ece9f4;border-radius:14px;background:#fbfaff}.recording-card>div[data-v-e8c0bea9]{display:grid;gap:4px}.recording-card span[data-v-e8c0bea9],.recording-card small[data-v-e8c0bea9]{color:#827d92;font-size:12px}.recording-card>button[data-v-e8c0bea9],.summary-review button[data-v-e8c0bea9]{min-height:44px;padding:9px 14px;border:1px solid #d9d2ef;border-radius:11px;color:#5f50c4;background:#fff;font-weight:800;cursor:pointer}.recording-card>button[data-v-e8c0bea9]:disabled,.summary-review button[data-v-e8c0bea9]:disabled{cursor:not-allowed;opacity:.5}.recording-card>video[data-v-e8c0bea9],.recording-card>p[data-v-e8c0bea9]{grid-column:1 / -1}.recording-card>video[data-v-e8c0bea9]{width:100%;max-height:580px;border-radius:12px;background:#151515}.summary-review[data-v-e8c0bea9]{display:grid;gap:12px;margin-top:14px;padding:16px;border:1px solid #e1dcf0;border-radius:15px;background:#f8f6ff}.summary-review>div[data-v-e8c0bea9]:first-child{display:flex;align-items:center;justify-content:space-between;gap:12px}.summary-review small[data-v-e8c0bea9]{color:#817a91}.summary-review details summary[data-v-e8c0bea9]{display:flex;align-items:center;min-height:44px;color:#5e50c6;font-weight:800;cursor:pointer}.summary-review label[data-v-e8c0bea9]{display:grid;gap:8px;color:#5e596d;font-size:13px;font-weight:800}.summary-review textarea[data-v-e8c0bea9]{width:100%;padding:12px;border:1px solid #d9d2ef;border-radius:11px;color:#343044;background:#fff;font:inherit;line-height:1.6;resize:vertical}.transcript-text[data-v-e8c0bea9]{max-height:300px;overflow:auto;margin:0;padding:12px;border-radius:10px;color:#5e596d;background:#fff;white-space:pre-wrap;line-height:1.7}.summary-actions[data-v-e8c0bea9]{display:flex;gap:10px;flex-wrap:wrap}.recording-card button[data-v-e8c0bea9]:focus-visible,.record-button[data-v-e8c0bea9]:focus-visible,.summary-review button[data-v-e8c0bea9]:focus-visible,.summary-review textarea[data-v-e8c0bea9]:focus-visible,.summary-review summary[data-v-e8c0bea9]:focus-visible{outline:3px solid #988ae2;outline-offset:2px}@media(max-width:850px){.classroom-stage[data-v-e8c0bea9]{grid-template-columns:1fr}.local-stage[data-v-e8c0bea9]{width:200px;height:140px}.video-sidebar[data-v-e8c0bea9]{grid-template-columns:minmax(0,1fr) 200px}.remote-stage[data-v-e8c0bea9],.remote-grid[data-v-e8c0bea9] .remote-stream{min-height:140px}.classroom-heading[data-v-e8c0bea9]{align-items:flex-start}.recording-banner[data-v-e8c0bea9]{align-items:stretch;flex-direction:column}.record-button[data-v-e8c0bea9]{width:100%}}@media(max-width:560px){.video-sidebar[data-v-e8c0bea9]{grid-template-columns:1fr}.local-stage[data-v-e8c0bea9]{width:100%}.classroom-media[data-v-e8c0bea9]{padding:16px}.media-heading[data-v-e8c0bea9],.summary-review>div[data-v-e8c0bea9]:first-child{align-items:flex-start;flex-direction:column}.recording-card[data-v-e8c0bea9]{grid-template-columns:1fr}.recording-card>button[data-v-e8c0bea9]{width:100%}}.homework-page[data-v-f72a8e5e]{max-width:1400px;margin:0 auto}.page-heading[data-v-f72a8e5e]{margin-bottom:24px}.page-heading h1[data-v-f72a8e5e]{font-size:28px;margin:0}.homework-workbench[data-v-f72a8e5e]{display:grid;grid-template-columns:minmax(280px,.85fr) minmax(340px,1.15fr);gap:22px;align-items:start}.content-card[data-v-f72a8e5e]{background:#fff;border:1px solid #ebe8f3;border-radius:20px;padding:24px;margin-bottom:22px;box-shadow:0 8px 24px #4a387006;min-width:0}h2[data-v-f72a8e5e]{font-size:18px;margin:0 0 18px}h3[data-v-f72a8e5e]{font-size:15px}label[data-v-f72a8e5e]{display:grid;gap:8px;font-size:14px;margin:14px 0;color:#56576c}input[data-v-f72a8e5e],select[data-v-f72a8e5e],textarea[data-v-f72a8e5e]{width:100%;font:inherit;padding:10px 12px;border:1px solid #dedbe9;border-radius:10px;background:#fff;min-width:0}textarea[data-v-f72a8e5e]{resize:vertical;line-height:1.6}input[type=checkbox][data-v-f72a8e5e]{width:auto}.option-row[data-v-f72a8e5e]{display:flex;flex-wrap:wrap;gap:16px}.option-row label[data-v-f72a8e5e]{display:flex;align-items:center}button[data-v-f72a8e5e]{cursor:pointer;padding:10px 16px;border-radius:10px;border:1px solid #dcd5ef;color:#6550ae;background:#f7f5ff;font:inherit}button[data-v-f72a8e5e]:disabled,input[data-v-f72a8e5e]:disabled,textarea[data-v-f72a8e5e]:disabled,select[data-v-f72a8e5e]:disabled{opacity:.55;cursor:not-allowed}.action-row[data-v-f72a8e5e],.attachment-row[data-v-f72a8e5e]{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}.section-title[data-v-f72a8e5e]{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:14px}.section-title h2[data-v-f72a8e5e]{margin-bottom:0}.schedule-row[data-v-f72a8e5e]{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:16px 12px;border:1px solid #edeaf4;border-radius:12px;margin:12px 0;cursor:pointer}.schedule-row.active[data-v-f72a8e5e]{background:#f5f2ff;border-color:#bcb0e5}.schedule-row>div[data-v-f72a8e5e]{display:grid;gap:8px;flex:1;min-width:160px}.schedule-row span[data-v-f72a8e5e],.schedule-row time[data-v-f72a8e5e]{font-size:12px;color:#838198}.schedule-row em[data-v-f72a8e5e]{font-size:12px;color:#7660af;font-style:normal}.state-card[data-v-f72a8e5e]{padding:14px 18px;border:1px solid #dfd9ee;border-radius:12px;background:#f5f1ff;margin:18px 0}.state-card.error[data-v-f72a8e5e]{color:#b24550;background:#fff2f1;border-color:#efc9cb}.empty[data-v-f72a8e5e],.note[data-v-f72a8e5e]{color:#7e7b8c;line-height:1.8;white-space:pre-wrap}.homework-detail dl[data-v-f72a8e5e],.result-panel dl[data-v-f72a8e5e]{display:flex;gap:20px;flex-wrap:wrap}dt[data-v-f72a8e5e]{color:#898493;font-size:12px}dd[data-v-f72a8e5e]{margin:6px 0 0;font-size:14px}.review-panel[data-v-f72a8e5e],.result-panel[data-v-f72a8e5e]{margin:18px 0;padding:18px;border:1px solid #e8e4ef;border-radius:14px;background:#fdfcfe}.review-panel p[data-v-f72a8e5e]{white-space:pre-wrap;line-height:1.7}.review-panel>div[data-v-f72a8e5e]:first-child{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}.review-panel span[data-v-f72a8e5e]{font-size:13px;color:#8b8396}.homework-groups[data-v-f72a8e5e]{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}.homework-groups article[data-v-f72a8e5e]{display:grid;gap:10px;padding:12px;background:#f7f5fc;border-radius:12px;text-align:center}.homework-groups strong[data-v-f72a8e5e]{font-size:12px;color:#838091}.homework-groups span[data-v-f72a8e5e]{font-size:20px}@media(max-width:960px){.homework-workbench[data-v-f72a8e5e]{grid-template-columns:1fr}.content-card[data-v-f72a8e5e]{padding:18px}}:root{--brand-primary: #2e6bff;--brand-primary-hover: #1e58d8;--brand-primary-light: #eaf0ff;--brand-primary-subtle: #f4f7ff;--page-bg: #f7f9fc;--card-bg: #ffffff;--surface-raised: #ffffff;--surface-soft: #f7f5ff;--surface-tint: #f2efff;--border-color: #dfe7f2;--border-subtle: rgba(60, 60, 67, .1);--text-heading: #17213b;--text-primary: #1b2945;--text-secondary: #63708a;--text-muted: #8a96aa;--success: #22b889;--warning: #e4a52c;--danger: #ef6262;--shadow-sm: 0 8px 22px rgba(27, 54, 96, .06);--shadow-md: 0 18px 42px rgba(27, 54, 96, .12);--radius-sm: 12px;--radius-md: 18px;--radius-lg: 26px;--el-color-primary: var(--brand-primary);--el-color-primary-light-3: #998efc;--el-color-primary-light-5: #b6aefd;--el-color-primary-light-7: #d3cefe;--el-color-primary-light-8: #e2dffe;--el-color-primary-light-9: #f1efff;--el-color-primary-dark-2: #574ac9;--el-color-success: var(--success);--el-color-warning: var(--warning);--el-color-danger: var(--danger);--el-border-color: var(--border-color);--el-text-color-primary: var(--text-primary);--el-text-color-regular: var(--text-secondary);--el-bg-color: var(--card-bg);--el-fill-color-light: var(--page-bg)}:root{font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif;color:#2d3150;background:#fffaff;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 85% -12%,#ffe3e8,transparent 28rem),linear-gradient(180deg,#fffaff,#f3f8ff)}button,input{font:inherit}.teaching-shell{min-height:100vh;display:grid;grid-template:72px 1fr/260px minmax(0,1fr)}header{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:0 28px;color:#fff;background:linear-gradient(110deg,#6352df,#7a69ed 55%,#54b9c2);box-shadow:0 10px 30px #6151d533}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}.brand>b,.logo{display:grid;place-items:center;width:40px;height:40px;border-radius:14px;color:#6454dc;background:#fff;font-size:22px;font-weight:900}.brand span{display:grid;gap:2px}.brand small{opacity:.76}.account{display:flex;align-items:center;gap:14px}.account button{border:1px solid #ffffff66;border-radius:11px;padding:8px 13px;color:#fff;background:#ffffff12}.teaching-shell aside{display:flex;flex-direction:column;justify-content:space-between;padding:18px 14px;background:#ffffffd9;border-right:1px solid #ece3f7}.teaching-shell nav{display:grid;gap:6px}.nav-item{display:flex;align-items:flex-start;gap:10px;padding:11px;border-radius:15px;color:#77758d;text-decoration:none;transition:.18s}.nav-item i{font-style:normal;font-size:20px}.nav-item span{display:grid;gap:3px;font-weight:800}.nav-item small{font-size:11px;font-weight:500;color:#a49eb2}.nav-item.router-link-active,.nav-item:hover{color:#5d4bd1;background:#f6eefe;transform:translate(2px)}.learning-tip{padding:12px;color:#9c94aa;font-size:12px;line-height:1.5}.teaching-shell main{min-width:0;padding:36px clamp(18px,4vw,64px) 60px}.hero{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:28px 32px;border:1px solid #f0dcef;border-radius:28px;background:linear-gradient(135deg,#fff,#fff1f6 55%,#effcff);box-shadow:0 18px 45px #ce80b21a}.eyebrow{margin:0 0 8px;color:#ed6f91;font-size:12px;font-weight:900;letter-spacing:.1em}.hero h1,.page-heading h1{margin:0;color:#39345e;font-size:clamp(26px,4vw,42px);line-height:1.2}.hero span,.page-heading>span{display:block;margin-top:10px;color:#817b94}.hero-art{display:flex;gap:8px;align-items:end}.hero-art span{display:grid;place-items:center;width:54px;height:54px;border-radius:20px;color:#fff;background:#f08aa5;font-size:20px;font-weight:900;box-shadow:0 10px 20px #ee7f9e44}.hero-art span:nth-child(2){margin-bottom:20px;background:#5fc7bf}.hero-art span:nth-child(3){margin-bottom:8px;background:#f4b256}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.metric-grid article,.module-card,.content-card{border:1px solid #f0e3f1;border-radius:18px;background:#fff;box-shadow:0 8px 24px #b56a9c0d}.metric-grid article{display:grid;gap:7px;padding:18px}.metric-grid small,.metric-grid span{color:#89839e}.metric-grid strong{font-size:30px;color:#e47799}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}.module-card{display:flex;align-items:center;gap:13px;padding:18px;color:inherit;text-decoration:none;transition:.18s}.module-card:hover{transform:translateY(-2px);box-shadow:0 15px 28px #b56a9c16}.module-card i{display:grid;place-items:center;width:40px;height:40px;border-radius:15px;color:#fff;background:#ee7f9e;font-style:normal;font-size:20px}.module-card:nth-child(2n) i{background:#5fc7bf}.module-card div{display:grid;gap:4px;flex:1}.module-card span{color:#89839e;font-size:13px}.module-card>b{color:#e47799}.page-heading{margin-bottom:22px}.content-card{padding:26px}.content-preview-card{display:grid;gap:14px;margin-top:18px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-title strong{color:#3b3563}.section-title small,.preview-row small,.preview-note,.muted{color:#89839e}.preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.preview-grid>div{display:grid;gap:4px;padding:14px;border-radius:14px;background:#fff7fb}.preview-grid b{color:#e47799;font-size:24px}.preview-grid span{color:#89839e;font-size:12px}.account-preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-items:stretch}.account-preview-grid>div{display:grid;gap:4px;padding:14px;border-radius:14px;background:#f7f5ff}.account-preview-grid b{color:#5d4bd1;font-size:22px}.account-preview-grid span{color:#89839e;font-size:12px}.inline-link{align-self:center;color:#5d4bd1;font-weight:800;text-decoration:none}.preview-list{display:grid;gap:8px}.preview-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid #f1e8f1}.preview-row span{display:grid;gap:4px}.preview-row em{color:#e47799;font-style:normal;white-space:nowrap}.preview-note{font-size:12px}.empty-module{text-align:center}.empty-art{font-size:42px;color:#ed7898}.empty-module p{color:#89839e}.empty-module a,.state-card a{color:#e05d83;font-weight:800}.login-page{display:grid;place-items:center;min-height:100vh;grid-template-columns:minmax(0,1fr) minmax(320px,420px);gap:60px;padding:8vw;background:radial-gradient(circle at 18% 20%,#ffdfe9,transparent 30rem),#fffaff}.login-page section{max-width:560px}.login-page section p{color:#e56c8d;font-weight:800}.login-page h1{margin:18px 0 12px;color:#39345e;font-size:clamp(34px,6vw,62px);line-height:1.08}.login-page small{color:#89839e}.login-page form{display:grid;gap:16px;padding:28px;border:1px solid #f0e3f1;border-radius:24px;background:#fffffff0;box-shadow:0 20px 50px #b56a9c1c}.login-page form h2{margin:0;color:#39345e}.login-page label{display:grid;gap:7px;color:#77708d;font-size:13px}.login-page input{width:100%;border:1px solid #ead9ed;border-radius:12px;padding:12px;background:#fff}.login-page button{border:0;border-radius:12px;padding:12px;color:#fff;background:#e47799;font-weight:800}.error{color:#d34f67}.state-page{display:grid;place-items:center;min-height:100vh}.state-card{padding:32px;border:1px solid #f0e3f1;border-radius:22px;background:#fff;text-align:center}.emoji{font-size:40px}.calendar-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}.calendar-toolbar>div{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.calendar-toolbar button,.section-title button,.preview-row button,.assessment-composer button{border:1px solid #eadcf0;border-radius:10px;padding:7px 10px;color:#5d4bd1;background:#fff;cursor:pointer}.calendar-toolbar button.active,.primary-action{color:#fff;background:#6352df;border-color:#6352df}.calendar-grid{display:grid;gap:8px}.calendar-week,.calendar-month{grid-template-columns:repeat(7,minmax(0,1fr))}.calendar-day{min-height:150px;padding:10px;border:1px solid #f0e3f1;border-radius:14px;background:#fff;overflow:hidden}.calendar-day>header{display:flex;justify-content:space-between;gap:4px;padding:0;color:#3b3563;background:none;box-shadow:none}.calendar-day>header small{color:#a49eb2}.calendar-event{display:grid;gap:3px;margin-top:8px;padding:8px;border-radius:10px;color:#39345e;background:#fff1f6;font-size:12px}.calendar-event b{color:#e47799}.calendar-event small{color:#89839e}.calendar-event em{color:#5d4bd1;font-style:normal}.calendar-empty{margin:22px 0 0;color:#b8b0c2;font-size:12px;text-align:center}.homework-process{border-bottom:1px solid #f1e8f1;padding-bottom:10px}.submission-history{margin:0 12px 8px;padding:9px 12px;border-radius:10px;background:#fff8fb}.history-row{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed #f0dce8;color:#6f6980;font-size:12px}.history-row:last-child{border-bottom:0}.history-row i{color:#9b8fa4;font-style:normal}.assessment-composer{display:grid;gap:10px;padding-top:12px}.assessment-composer input,.assessment-composer select{width:100%;border:1px solid #ead9ed;border-radius:10px;padding:10px;background:#fff}.question-picker{display:grid;gap:6px;max-height:260px;overflow:auto;padding:10px;border:1px solid #f0e3f1;border-radius:12px}.question-picker-toolbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding-bottom:8px;border-bottom:1px solid #f0e3f1}.question-picker-toolbar select{min-width:0;padding:8px;border:1px solid #ead9ed;border-radius:8px;background:#fff}.question-picker-summary{grid-column:1 / -1;color:#89839e;font-size:12px}.question-picker label{display:grid;grid-template-columns:auto 1fr;gap:6px;padding:7px;border-radius:8px;color:#5a5470;font-size:13px}.question-picker label:hover{background:#fff1f6}.question-picker small{grid-column:2;color:#9a92a7;font-size:11px}@media(max-width:760px){.teaching-shell{display:block}header{position:sticky;top:0;z-index:5;padding:12px 16px}.teaching-shell aside{position:sticky;top:64px;z-index:4;overflow:auto;padding:8px;border-right:0;border-bottom:1px solid #ece3f7}.question-picker-toolbar{grid-template-columns:1fr 1fr}.teaching-shell aside nav{display:flex;min-width:max-content}.nav-item{padding:8px 10px}.nav-item small,.learning-tip{display:none}.teaching-shell main{padding:20px 14px 36px}.hero{padding:22px;align-items:flex-start}.hero-art{display:none}.metric-grid,.module-grid,.preview-grid,.account-preview-grid{grid-template-columns:1fr}.account span{display:none}.calendar-toolbar{align-items:flex-start;flex-direction:column}.calendar-week,.calendar-month{display:flex;overflow-x:auto;padding-bottom:8px}.calendar-day{min-width:132px}.calendar-month .calendar-day{min-width:120px}.history-row{display:grid;gap:3px}.login-page{grid-template-columns:1fr;padding:28px 18px}.login-page h1{font-size:38px}}