:root{--ink:#202c46;--navy:#3563e9;--teal:#3563e9;--paper:#f5f7fc;--line:#e7ebf3;--muted:#748097;--white:#fff;--green:#278a86;font-family:"Segoe UI","Microsoft YaHei UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.65}a{color:var(--navy);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border:1px solid transparent;border-radius:8px;background:var(--navy);color:#fff;padding:10px 20px;font-weight:600;cursor:pointer;line-height:1.5;transition:background .15s,border-color .15s}button:hover,.button:hover{background:#284fc8;text-decoration:none}button:disabled{opacity:.55;cursor:wait}button.secondary,.button.secondary{background:#f3f6ff;color:#3563e9;border-color:#e5ebfc}button.secondary:hover,.button.secondary:hover{background:#e6edff;border-color:#b8c9fa}button.small,.button.small{min-height:34px;font-size:12px;padding:7px 13px}button.link{min-height:0;padding:0;background:transparent;border:0;color:var(--navy);font-weight:500}button.danger{background:#fff0f0;color:#ad3636}button.light,.button.light{background:white;color:#315acb;box-shadow:0 4px 14px #183fab20}.button.light:hover{background:#eef3ff}.icon-button{padding:7px;min-height:34px;background:transparent;color:var(--muted)}.icon-button:hover{background:#f0f4fb}.icon-button svg{width:19px;height:19px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #92b2ff;outline-offset:3px}input,select,textarea{width:100%;border:1px solid #dce3ef;background:#fff;border-radius:8px;padding:11px 13px;color:var(--ink);min-height:44px;transition:border-color .15s}input:hover,select:hover,textarea:hover{border-color:#aebfdc}input:focus,textarea:focus,select:focus{border-color:#6b8fed}input::placeholder,textarea::placeholder{color:#929caf}textarea{resize:vertical;min-height:110px}input[type=checkbox]{width:16px;min-height:16px;height:16px;accent-color:var(--navy)}label{display:block;font-weight:500;font-size:13px;margin-bottom:7px}label input,label select,label textarea{margin-top:8px}label small{font-weight:400;color:var(--muted)}.field{margin-bottom:19px}.hint,.muted{color:var(--muted);font-size:12px}.hint{margin:7px 0 0;line-height:1.8}.loading{padding:100px;text-align:center;color:var(--muted)}h1,h2,h3,p{margin-top:0}h1{font-size:28px;font-weight:650;letter-spacing:-.6px;line-height:1.45}h2{font-size:19px;line-height:1.5;font-weight:650}h3{font-size:16px;line-height:1.6;font-weight:600}p{margin-bottom:16px}svg{flex-shrink:0}.skip-link{position:fixed;top:-100px;z-index:1000;background:#fff;padding:12px 20px}.skip-link:focus{top:5px}.brand{display:flex;gap:11px;align-items:center}.brand img{width:40px;height:40px}.brand strong{display:block;font-size:16px;font-weight:700;letter-spacing:-.3px}.brand span{display:block;margin-top:3px;font-size:10px;letter-spacing:.5px;color:#8b94a6}
/* A quiet navigation rail leaves the courses in focus. */
.sidebar{position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:20;overflow-y:auto;width:240px;padding:32px 20px 18px;background:#fff;border-right:1px solid var(--line)}.sidebar .brand{margin:0 3px 42px}.nav-label{padding:0 15px;font-size:11px;color:#919aab;margin:0 0 12px}.nav{display:flex;flex-direction:column;gap:8px}.nav a{display:flex;align-items:center;gap:14px;padding:13px 17px;border-radius:9px;color:#69758c;font-size:14px;min-height:48px;position:relative}.nav a:hover{background:#f6f8fd;text-decoration:none;color:var(--navy)}.nav a.active{background:#edf2ff;color:var(--navy);font-weight:600}.nav a.active:after{content:'';width:4px;height:18px;border-radius:4px;position:absolute;right:12px;background:var(--navy)}.nav svg{width:20px;height:20px}.nav-separator{height:1px;background:var(--line);margin:18px 14px}.nav .nav-label{margin:2px 0 3px}.sidebar-note{margin:auto 5px 22px;padding:20px 15px;background:#f7f9fe;border:1px solid #edf1fa;border-radius:12px}.sidebar-note>svg{width:25px;height:25px;color:#708ed8;margin-bottom:8px}.sidebar-note strong{display:block;font-size:12px;font-weight:600}.sidebar-note span{display:block;font-size:11px;color:#8a95a8;margin:6px 0 12px}.sidebar-note a{font-size:11px}.sidebar-footer{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding:18px 3px 0}.sidebar-footer strong{display:block;font-size:12px}.sidebar-footer span:not(.avatar){font-size:10px;color:var(--muted)}.sidebar-footer .icon-button{margin-left:auto}.avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#e9efff;color:#5574b4;font-size:12px;font-weight:600;flex-shrink:0}.workspace{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}.topbar{height:76px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 38px;background:#fff;border-bottom:1px solid var(--line);gap:20px}.breadcrumb{font-size:12px;color:#919aab}.breadcrumb span{margin:0 13px;color:#c4cbda}.breadcrumb strong{font-weight:500;color:#657189}.topbar-right{display:flex;align-items:center;gap:20px}.scope{font-size:12px;color:#7d879a}.topbar-divider{height:14px;width:1px;background:var(--line)}.topbar button{font-size:12px}.page{width:100%;max-width:1530px;margin:0 auto;padding:30px 38px 45px;flex:1}.workspace-footer{display:flex;justify-content:space-between;padding:18px 38px;color:#96a0b1;font-size:10px;border-top:1px solid var(--line)}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px}.page-heading h1{margin-bottom:7px}.page-heading p{margin:0;color:var(--muted);font-size:13px}.today{font-size:12px;color:#8791a5;white-space:nowrap}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:28px 0 17px}.section-head h2{margin:0}.section-head p{font-size:12px;margin:6px 0 0;color:var(--muted)}.section-head a{font-size:12px;white-space:nowrap}
/* The open lesson book is the visual identity of the learning space. */
.welcome-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:22px;margin-bottom:24px}.welcome{position:relative;display:flex;align-items:center;background:#3c66df;border-radius:18px;overflow:hidden;min-height:284px;color:#fff}.welcome-text{position:relative;z-index:1;padding:29px 32px;width:62%}.hero-label{display:inline-block;padding:3px 9px;border:1px solid #ffffff3b;border-radius:5px;font-size:10px;color:#e0e9ff;margin-bottom:15px}.welcome h2{font-size:28px;line-height:1.55;font-weight:600;letter-spacing:.2px;margin-bottom:12px}.welcome p{font-size:12px;line-height:1.9;color:#dde7ff;margin-bottom:21px}.welcome .button{font-size:12px;min-height:36px;padding:8px 17px}.hero-art{position:absolute;right:-15px;bottom:7px;width:49%;max-height:280px;object-fit:contain}.path-panel{padding:24px 23px;background:#fff;border-radius:14px;border:1px solid var(--line)}.path-panel h2{font-size:15px;margin:0 0 4px}.path-panel>p{font-size:11px;color:var(--muted);margin-bottom:15px}.path-step{position:relative;display:flex;gap:12px;padding:10px 0;align-items:flex-start}.path-step:not(:last-child):after{content:'';position:absolute;width:1px;background:#e3eafa;left:12px;top:36px;bottom:-9px}.step-dot{width:25px;height:25px;border:1px solid #e2eaff;background:#f4f7ff;color:#6d8acb;border-radius:50%;font-size:11px;display:grid;place-items:center;flex-shrink:0}.path-step strong{display:block;font-size:12px;font-weight:500}.path-step div>span{font-size:10px;color:#919aaa;display:block;margin-top:2px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:22px 0;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:4px}.stat{display:flex;align-items:center;gap:14px;padding:0 23px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat-icon{display:grid;place-items:center;width:43px;height:43px;flex-shrink:0;border-radius:11px}.stat-icon svg{width:21px;height:21px}.stat span{font-size:11px;color:var(--muted)}.stat strong{display:block;font-size:27px;font-weight:600;line-height:1.4;letter-spacing:-.6px;font-variant-numeric:tabular-nums}.stat small{font-size:10px;font-weight:400;color:#909aab;letter-spacing:0;margin-left:7px}.tone-blue{--tone:#597ed7;--tone-light:#edf2ff;--cover:#e7eeff;background:var(--tone-light);color:var(--tone)}.tone-green{--tone:#448e86;--tone-light:#eaf6f2;--cover:#e0f0eb;background:var(--tone-light);color:var(--tone)}.tone-purple{--tone:#8a75bd;--tone-light:#f1edfb;--cover:#ebe5f7;background:var(--tone-light);color:var(--tone)}.tone-amber{--tone:#b48a42;--tone-light:#fcf5e8;--cover:#f8eedb;background:var(--tone-light);color:var(--tone)}.layout-two{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:25px;align-items:start}.home-aside .section-head{min-height:46px}.subject-list{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 17px}.subject-list a{display:flex;align-items:center;gap:12px;padding:13px 0;color:#536079;font-size:12px;border-bottom:1px solid #f0f2f7}.subject-list a:last-child{border:0}.subject-dot{width:30px;height:32px;display:grid;place-items:center;border-radius:6px}.subject-dot svg{width:17px;height:17px}.subject-count{margin-left:auto;color:#a0a9b9;font-size:11px;white-space:nowrap}.community-card{background:#eef2fc;border:1px solid #e4eaf8;border-radius:12px;padding:23px;margin-top:20px}.community-card>svg{width:25px;height:25px;color:#7f97d6;margin-bottom:11px}.community-card h3{font-size:14px;margin:0 0 10px}.community-card p{font-size:12px;color:#7c8cae;line-height:1.9}.community-card a{font-size:12px}
/* Real subject covers distinguish courses without stock imagery. */
.course-list{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.course-row{display:grid;grid-template-columns:100px minmax(0,1fr);column-gap:18px;padding:20px;border-bottom:1px solid #edf0f6;align-items:start}.course-row:last-child{border-bottom:0}.course-cover{position:relative;background:var(--cover);color:var(--tone);overflow:hidden;border-radius:8px;isolation:isolate}.course-row .course-cover{height:108px;grid-row:1 / 3}.cover-subject{position:relative;z-index:2;font-size:15px;font-weight:600;display:block;padding:15px 12px;line-height:1.4}.cover-type{position:absolute;left:12px;bottom:11px;font-size:9px;color:var(--tone);z-index:2}.cover-mark{position:absolute;right:9px;bottom:24px;color:var(--tone);opacity:.3;transform:rotate(-12deg)}.cover-mark svg{width:48px;height:48px;stroke-width:1}.cover-lines{position:absolute;border:1px solid currentColor;width:170px;height:170px;border-radius:50%;right:-95px;top:-70px;opacity:.13}.cover-lines:before,.cover-lines:after{content:'';position:absolute;border:1px solid currentColor;inset:16px;border-radius:50%}.cover-lines:after{inset:32px}.course-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:10px;color:#8893a6;min-height:18px}.course-info{min-width:0}.course-info h3{font-size:14px;margin:5px 0 6px;line-height:1.65}.course-info h3 a{color:var(--ink)}.course-info p{font-size:11px;color:#748198;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.85}.course-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px}.course-status{display:flex;align-items:center;gap:5px;font-size:10px;color:#76849b;min-width:0}.course-status svg{width:12px;height:12px}.tag{display:inline-block;font-size:10px;padding:2px 7px;border-radius:4px;background:#f0f3f9;color:#8290aa;white-space:nowrap}.tag.required{background:#edf2ff;color:#6a86c7}.tag.approved{background:#eaf5ed;color:#488564}.tag.pending{background:#fcf4e5;color:#a17b37}.tag.revision{background:#fff0eb;color:#af6953}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}.course-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;display:flex;flex-direction:column;transition:border-color .15s,box-shadow .15s;min-width:0}.course-card:hover{border-color:#c4d2f4;box-shadow:0 6px 18px #36507e09}.course-card .course-cover{height:145px;flex-shrink:0}.course-card .cover-subject{font-size:26px;padding:24px}.course-card .cover-type{left:24px;bottom:19px;font-size:11px}.course-card .cover-mark{bottom:10px;right:26px}.course-card .cover-mark svg{width:95px;height:95px}.course-card .cover-lines{width:250px;height:250px;right:-35px;top:-114px}.course-card .course-info{padding:19px 14px 0;flex:1}.course-card h3{font-size:15px;margin-top:8px}.course-card .course-info p{font-size:12px;margin-top:8px;min-height:44px}.course-card .course-bottom{padding:17px 14px 12px;margin-top:4px}.course-card .course-meta{font-size:10px}.course-card .course-status{font-size:10px}.resource-total{font-size:12px;color:#7f8ba2;background:#eaf0fa;border-radius:6px;padding:7px 13px}.library-toolbar{background:white;border:1px solid var(--line);border-radius:12px;padding:0 22px 22px}.tabs{display:flex;align-items:center;gap:25px;overflow:auto;flex-wrap:wrap;border-bottom:1px solid var(--line);margin:0 0 22px}.tabs button{position:relative;background:transparent;color:#8590a5;border:0;padding:15px 3px;border-radius:0;font-size:13px;white-space:nowrap;font-weight:500}.tabs button:hover{color:var(--navy)}.tabs button.selected{color:var(--navy);background:transparent;font-weight:600}.tabs button.selected:after{content:'';position:absolute;bottom:0;height:3px;left:3px;right:3px;background:var(--navy);border-radius:4px 4px 0 0}.filters{display:flex;gap:15px;align-items:center}.search-field{flex:1;position:relative}.search-field svg{position:absolute;left:14px;top:14px;width:18px;height:18px;color:#929eb5}.search-field input{padding-left:43px;background:#f9faff}.filters select{width:210px;background:#f9faff}.result-caption{font-size:12px;color:#8a95a9;margin:22px 0 14px}.footer-note{font-size:11px;color:#78879e;margin-top:25px}
/* Reading, forms and administration share one clear type scale. */
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}.panel h2{margin-bottom:20px}.panel+.panel{margin-top:22px}.empty{padding:48px 25px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:12px;color:#8895ac}.empty-icon{display:grid;place-items:center;width:56px;height:56px;background:#f0f4ff;color:#a2b6df;margin:0 auto 17px;border-radius:16px}.empty-icon svg{width:28px;height:28px}.empty strong{display:block;font-size:16px;font-weight:500;color:#5d6c87;margin-bottom:8px}.empty p{margin:0;font-size:12px}.notice{padding:15px 18px;background:#eef3fc;border:1px solid #e5edf9;border-radius:8px;color:#778bab;font-size:12px;margin:20px 0;line-height:1.9}.notice.warning{background:#fff6e7;color:#94713b;border-color:#f2e2c4}.brief-list{padding:0;list-style:none;margin:0}.brief-list li{font-size:12px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--muted)}.brief-list strong{display:block;margin-bottom:6px;font-size:13px;color:var(--ink)}.read-layout{display:grid;grid-template-columns:minmax(0,1fr) 282px;gap:26px;align-items:start}.reading{background:white;border:1px solid var(--line);border-radius:14px;padding:38px 40px}.reading h1{font-size:26px;margin:18px 0 32px}.article-body{font-size:16px;line-height:2.15;color:#4d5c74;max-width:72ch}.article-body p{margin-bottom:24px}.reading video{width:100%;max-height:500px;background:#152545;border-radius:9px;margin:15px 0}.external-resource{padding:28px;background:#f3f6ff;border:1px solid #e2e9f9;border-radius:10px;margin:25px 0}.external-resource h2{font-size:21px;margin-bottom:12px}.external-resource p{color:#7b8baa;font-size:13px}.sticky{position:sticky;top:24px}.back-link{display:inline-block;font-size:12px;margin-bottom:21px;color:#8090ad}.submission{margin-top:34px;padding-top:28px;border-top:1px solid var(--line)}.submission>p{font-size:13px;color:var(--muted)}.feedback{padding:18px;background:#edf7f1;border-radius:8px;color:#5f8274;font-size:13px;margin:15px 0}.meta-stack{font-size:12px;line-height:2.5;color:var(--muted)}.meta-stack strong{color:#52688b;font-weight:600}.timing{font-size:13px;color:var(--navy);padding:10px 13px;border-radius:6px;background:#f0f4ff}.table-wrap{overflow:auto;border:1px solid var(--line);background:#fff;border-radius:12px}table{border-collapse:collapse;width:100%;font-size:12px;text-align:left;white-space:nowrap}th,td{padding:17px 20px;border-bottom:1px solid #edf0f5}th{background:#f8faff;color:#8693ab;font-weight:500;font-size:11px}td{color:#53647f}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#fcfdff}td small{display:block;color:#98a3b5;font-size:10px;margin-top:4px}td button.link{font-size:12px}.text-wrap{white-space:normal;min-width:150px;max-width:430px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 23px}.form-grid .full{grid-column:1/-1}.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.check-grid label{display:flex;gap:7px;align-items:center;font-size:11px;font-weight:400}.check-grid input{margin:0;flex-shrink:0}.post{padding:26px;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:20px}.post h3{margin:13px 0}.post-body{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.9;color:#5c6c84}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px}.actions select{max-width:220px}.review-card{margin-bottom:20px}.review-card textarea{margin-top:12px}.password-panel{max-width:550px}.admin-overview{margin-bottom:25px}.no-margin{margin:0}.spaced{margin-top:23px}.form-error{color:#bc4a4a;font-size:12px;min-height:20px;margin-top:12px}#toast{display:none;position:fixed;bottom:28px;left:50%;transform:translateX(-50%);max-width:90vw;z-index:100;padding:13px 23px;background:#263956;color:#fff;box-shadow:0 5px 25px #15233d20;border-radius:9px;font-size:13px}#toast.visible{display:block}dialog{border:1px solid var(--line);border-radius:16px;padding:30px;max-width:680px;width:calc(100% - 36px);color:var(--ink);box-shadow:0 15px 70px #17263d30}dialog::backdrop{background:#1b2e504d;backdrop-filter:blur(3px)}dialog code{display:block;overflow-wrap:anywhere;user-select:all;background:#eef3fd;border-radius:7px;padding:12px;margin:10px 0 20px}
/* The entry experience uses the same learning materials as the workspace. */
.login-layout{display:grid;grid-template-columns:1.05fr 1fr;min-height:100vh;background:#fff;padding:18px;gap:18px}.login-intro{position:relative;background:#eef3ff;border-radius:22px;display:flex;flex-direction:column;justify-content:space-between;padding:32px 42px;overflow:hidden;min-height:690px}.login-intro .brand{margin-bottom:28px}.login-intro .brand strong{font-size:18px}.auth-story{padding:0 20px;position:relative}.auth-story h1{font-size:39px;line-height:1.55;letter-spacing:0;font-weight:650;color:#293f70;margin-bottom:18px}.auth-story>p{color:#7b90b6;font-size:14px;line-height:1.9;margin:0}.auth-art{height:300px;position:relative;margin:0 -30px}.auth-art:before{content:'';position:absolute;background:#dce7ff;width:250px;height:250px;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%)}.auth-art img{position:relative;width:100%;height:100%;object-fit:contain}.login-subjects{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:10px 0 20px}.login-subjects span{font-size:10px;color:#8195bd;border:1px solid #d5e0f7;border-radius:5px;padding:5px 11px}.login-bottom{display:flex;justify-content:space-between;font-size:10px;color:#99a9c6;padding-top:20px}.login-form-wrap{position:relative;display:flex;justify-content:center;align-items:center;padding:45px 45px 75px}.login-form{width:100%;max-width:365px}.auth-symbol{display:grid;place-items:center;width:48px;height:48px;background:#edf2ff;border-radius:13px;color:#6283d8;margin-bottom:25px}.auth-symbol svg{width:25px;height:25px}.login-form h2{font-size:27px;letter-spacing:-.6px;margin-bottom:10px}.login-form>p{color:#929caf;font-size:13px;margin-bottom:32px}.login-form .field{margin-bottom:23px}.login-form label{font-size:12px;color:#687793}.login-form input{min-height:48px;background:#fcfdff;font-size:13px}.login-form button{width:100%;padding:13px;box-shadow:0 5px 12px #3563e918;margin-top:6px}.login-help{display:flex;gap:12px;align-items:center;margin-top:21px;padding:17px;background:#f7f9fd;border-radius:9px}.login-help svg{color:#8eabdd;width:22px;height:22px}.login-help p{margin:0;font-size:11px;color:#7c8aa3}.login-help p span{color:#9ba6b8}.login-form footer{font-size:10px;color:#9ba6b9;line-height:1.9;margin-top:23px}.auth-copyright{position:absolute;bottom:21px;left:20px;right:20px;text-align:center;font-size:10px;color:#a6aebd}.setup-label{display:inline-block;font-size:11px;color:#688bd7;background:#edf3ff;border-radius:5px;padding:4px 9px;margin-bottom:18px}.setup-layout .login-form{max-width:400px}.setup-layout .login-form>p{margin-bottom:24px}.setup-layout .field{margin-bottom:16px}.setup-layout input{min-height:43px}.auth-fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}
@media(min-width:1550px){.hero-art{width:47%;right:15px}.welcome-text{padding-left:40px}.welcome h2{font-size:32px}.welcome{min-height:300px}.login-intro{padding:45px 70px}.auth-art{height:350px}.auth-story{max-width:660px;margin:auto}.course-row .course-cover{height:108px}}
@media(max-width:1250px){.sidebar{width:214px;padding:27px 16px 17px}.sidebar .brand{gap:9px}.sidebar .brand strong{font-size:14px}.sidebar .brand img{width:33px;height:33px}.sidebar .brand span{font-size:9px}.workspace{margin-left:214px}.page{padding:26px}.topbar{padding:0 26px}.welcome-layout{grid-template-columns:minmax(0,1fr) 240px;gap:17px}.welcome-text{padding:25px;width:67%}.welcome h2{font-size:24px}.hero-art{width:45%;right:-26px}.path-panel{padding:22px 18px}.layout-two{grid-template-columns:minmax(0,1fr) 245px;gap:20px}.stat{padding:0 17px;gap:10px}.stat-icon{width:35px;height:38px}.stat strong{font-size:24px}.course-row{grid-template-columns:82px minmax(0,1fr);padding:17px;gap:0 14px}.course-row .course-cover{height:109px}.cover-subject{font-size:13px;padding:13px 9px}.cover-type{left:9px;font-size:8px}.course-grid{gap:17px}.course-card .cover-subject{font-size:23px;padding:21px}.course-card .course-info{padding:15px 10px 0}.course-card .course-bottom{padding:15px 10px 10px}.course-card .course-bottom .small{padding:6px 9px;font-size:11px}.read-layout{grid-template-columns:minmax(0,1fr) 245px;gap:20px}.reading{padding:30px}.auth-story{padding:0}.auth-story h1{font-size:33px}.login-intro{padding:32px}.auth-art{height:280px}}
@media(max-width:1050px){.welcome-layout{grid-template-columns:1fr}.path-panel{display:none}.welcome{min-height:270px}.hero-art{width:43%;right:5px;bottom:-8px}.welcome h2{font-size:28px}.layout-two{grid-template-columns:1fr}.home-aside{display:none}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.read-layout{grid-template-columns:1fr}.sticky{position:static}.stat{padding:0 15px}.stat-icon{display:none}.course-row{grid-template-columns:96px minmax(0,1fr)}.course-row .course-info p{-webkit-line-clamp:1}.login-intro{padding:27px}.auth-story h1{font-size:28px}.auth-art{height:240px}.login-form-wrap{padding:40px 27px 65px}.login-form h2{font-size:24px}}
@media(max-width:760px){.sidebar{position:relative;width:auto;padding:20px 18px 0;border:0;border-bottom:1px solid var(--line)}.sidebar .brand{margin:0 0 19px}.sidebar .brand img{width:34px;height:34px}.sidebar .brand strong{font-size:16px}.sidebar .brand span{font-size:10px}.sidebar>.nav-label,.nav .nav-label,.nav-separator,.sidebar-footer,.sidebar-note{display:none}.nav{flex-direction:row;gap:8px;overflow:auto;scrollbar-width:none;margin:0 -4px;padding:0 0 12px}.nav a{min-height:37px;padding:8px 11px;gap:7px;white-space:nowrap;font-size:12px;border-radius:6px;flex-shrink:0}.nav svg{width:15px;height:15px}.nav a.active:after{display:none}.workspace{margin-left:0}.topbar{height:49px;padding:0 21px}.breadcrumb{font-size:10px}.breadcrumb span{margin:0 7px}.scope,.topbar-divider{display:none}.topbar-right{gap:10px}.topbar button{font-size:10px}.page{padding:24px 18px 35px}.page-heading{align-items:flex-start;gap:12px;margin-bottom:22px}h1{font-size:24px}.page-heading p{font-size:12px}.today{font-size:10px;margin-top:9px}.home-heading{display:block}.home-heading .today{display:block;margin-top:12px}.welcome{min-height:262px;border-radius:14px}.welcome-text{width:72%;padding:25px 23px}.welcome h2{font-size:25px}.welcome p{font-size:11px}.hero-art{width:49%;right:-36px;bottom:7px;opacity:.9}.hero-label{font-size:9px}.welcome-layout{margin-bottom:18px}.stats{grid-template-columns:1fr 1fr;padding:0;border-radius:10px;margin:0}.stat{padding:18px;gap:13px;border-bottom:1px solid var(--line)}.stat-icon{display:grid;width:37px;height:37px}.stat:nth-child(2){border-right:0}.stat:nth-child(n+3){border-bottom:0}.stat strong{font-size:24px}.stat span{font-size:10px}.section-head{margin:26px 0 16px}.section-head h2{font-size:18px}.section-head p{font-size:11px;max-width:230px}.section-head a{font-size:11px}.course-row{padding:16px 13px;grid-template-columns:78px minmax(0,1fr);gap:0 13px}.course-row .course-cover{height:110px}.course-info h3{font-size:13px}.course-info p{font-size:10px}.course-meta{font-size:9px;gap:5px}.tag{font-size:9px;padding:1px 5px}.course-status{font-size:9px;gap:3px}.course-bottom{gap:6px;padding-top:10px}.course-bottom .small{font-size:10px;padding:6px 8px;min-height:31px}.course-status svg{display:none}.course-grid{grid-template-columns:1fr;gap:18px}.course-card .course-cover{height:142px}.course-card .cover-subject{font-size:26px;padding:24px}.course-card .course-info{padding:17px 15px 0}.course-card .course-info p{font-size:12px;min-height:0}.course-card .course-bottom{padding:20px 15px 13px}.course-card .course-bottom .small{font-size:12px;padding:8px 15px}.course-card .course-status{font-size:11px}.course-card .course-meta{font-size:11px}.resource-total{font-size:10px;padding:6px 8px;white-space:nowrap}.library-toolbar{padding:0 16px 18px}.tabs{gap:20px;flex-wrap:nowrap}.tabs button{font-size:12px;padding:14px 1px}.filters{gap:10px;flex-direction:column;align-items:stretch}.filters select{width:100%}.result-caption{margin:18px 0 12px}.panel,.post{padding:22px}.reading{padding:24px 21px}.reading h1{font-size:23px;margin:16px 0 24px}.article-body{font-size:15px;line-height:2.1}.external-resource{padding:22px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.check-grid{grid-template-columns:1fr 1fr}.table-wrap{border-radius:9px}th,td{padding:14px 15px}.workspace-footer{padding:17px 20px;font-size:9px;gap:20px}.workspace-footer span{display:none}.login-layout{grid-template-columns:1fr;padding:0;gap:0}.login-intro{min-height:0;padding:25px 27px 30px;border-radius:0}.login-intro .brand{margin-bottom:29px}.login-intro .brand strong{font-size:16px}.auth-story h1{font-size:27px;margin-bottom:11px;line-height:1.55}.auth-story>p{font-size:12px}.auth-art{position:absolute;height:165px;width:200px;right:-27px;bottom:-30px;margin:0;opacity:.7;pointer-events:none}.auth-art:before{width:120px;height:120px}.auth-story h1,.auth-story>p{position:relative;z-index:1}.login-subjects,.login-bottom{display:none}.login-form-wrap{padding:35px 29px 75px}.auth-symbol{display:none}.login-form h2{font-size:24px}.login-form>p{margin-bottom:28px;font-size:12px}.login-form{max-width:430px}.login-form footer{font-size:10px}.setup-layout .login-intro{padding-bottom:25px}.setup-layout .auth-story{display:none}.setup-layout .login-intro .brand{margin:0}.setup-layout .login-form-wrap{padding-top:30px}.auth-copyright{font-size:9px}.setup-layout .login-form{max-width:430px}.auth-fields{gap:12px}.home-aside{display:block}.home-aside .section-head{min-height:0}.community-card{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}