:root{--ink:#272741;--muted:#7c7d91;--purple:#7661ba;--line:#eeedf4;--bg:#f8f9fc;--mint:#e8f6ee;--pink:#fbecf0}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Tahoma,Arial,sans-serif;color:var(--ink);font-size:15px;line-height:1.8}button,input,select{font:inherit}a{color:inherit;text-decoration:none}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b89ce9;outline-offset:3px}.sidebar{width:252px;background:#fff;border-left:1px solid var(--line);position:fixed;right:0;top:0;bottom:0;display:flex;flex-direction:column;padding:32px 23px;z-index:20}.brand{display:flex;gap:12px;align-items:center;font-size:30px;font-weight:800;color:#67529f;line-height:1.4}.brandmark{background:#ede8fa;border-radius:19px 19px 7px 19px;display:grid;place-items:center;width:48px;height:52px;font-size:34px}.brand small{display:block;color:var(--muted);font-size:9px;font-weight:400;margin-top:3px}.student{display:flex;align-items:center;gap:10px;padding:20px 10px;margin:26px 0 22px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px}.student>span,.avatar{width:36px;height:36px;background:#f8e9dc;color:#9a7155;border-radius:50%;display:grid;place-items:center;font-weight:bold}.student small{display:block;font-size:10px;color:var(--muted)}.online{width:6px;height:6px;border-radius:50%;background:#8fbca4;margin-right:auto}nav{display:grid;gap:9px}nav a{display:flex;align-items:center;gap:13px;color:#868397;padding:10px 13px;border-radius:11px;font-size:20px}nav a span{font-size:12px}nav a.active{background:#f0ecfa;color:#7560ac;font-weight:bold}nav b{font-size:10px;background:#e3daf6;padding:0 6px;border-radius:5px;margin-right:auto}.side-note{background:#f8f6fc;border:1px solid #eeebf6;border-radius:14px;padding:17px;margin-top:auto}.side-note>span{color:#ab93c9;font-size:27px;display:block}.side-note strong{font-size:12px}.side-note p{font-size:10px;color:var(--muted);margin-bottom:0}.local-note{font-size:9px;color:#a09aad;text-align:center;margin-top:15px}.main{margin-right:252px}header{height:83px;border-bottom:1px solid var(--line);background:#ffffffc9;display:flex;align-items:center;justify-content:space-between;padding:0 42px;font-size:12px;color:var(--muted)}.header-left{display:flex;align-items:center;gap:20px}.grade{padding-left:20px;border-left:1px solid var(--line);font-size:11px}.avatar{height:33px;width:33px}#menu{display:none}main{padding:30px 42px;max-width:1500px;margin:auto;min-height:calc(100vh - 150px)}h1,h2,h3,p{margin-top:0}h1{font-size:27px;margin-bottom:6px;line-height:1.5}h2{font-size:19px;margin-bottom:3px}h3{font-size:15px;margin-bottom:8px}.muted{color:var(--muted)}.intro p{font-size:12px}.hero{background:#eee9fa;border:1px solid #e5def4;border-radius:22px;display:flex;justify-content:space-between;align-items:center;padding:33px 35px;margin:24px 0;min-height:210px;overflow:hidden}.eyebrow{color:#8b73b0;font-size:11px;letter-spacing:.3px;margin-bottom:10px}.hero h2{font-size:25px;margin-bottom:9px}.hero p{font-size:12px;color:#82758f;max-width:440px}.btn{background:var(--purple);border:0;color:white;padding:10px 22px;border-radius:9px;display:inline-flex;align-items:center;gap:15px;font-size:12px}.btn.secondary{background:white;border:1px solid #dfd8ee;color:#78629d}.hero-art{width:185px;height:150px;position:relative;flex-shrink:0;display:grid;place-items:center}.hero-art .book{width:110px;height:130px;border-radius:8px 18px 18px 8px;transform:rotate(-12deg);background:#a88ac9;border:6px solid #fff9;box-shadow:14px 17px 0 #d9cce9;color:#fff;font-size:58px;display:grid;place-items:center}.star{position:absolute;color:#b594ce;font-size:30px;left:7px;top:2px}.star:last-child{left:auto;right:0;top:auto;bottom:0;color:#caac8b}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0 30px}.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:flex;align-items:center;gap:16px}.stat .icon{font-size:21px;background:#f4f0fb;padding:8px 12px;border-radius:11px;color:#9881bd}.stat:nth-child(2) .icon{background:#eff8f2;color:#83a58e}.stat:nth-child(3) .icon{background:#fcf2e8;color:#bc9876}.stat strong{font-size:21px;display:block;line-height:1.3}.stat small{font-size:10px;color:var(--muted)}.section-head{display:flex;align-items:center;justify-content:space-between;margin:27px 0 18px;gap:15px}.section-head p{color:var(--muted);font-size:11px;margin:0}.section-head a{font-size:11px;color:#8b76af}.subjects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.subject{display:block;background:white;border:1px solid var(--line);border-radius:16px;padding:21px;transition:transform .2s,box-shadow .2s;min-height:180px}.subject:hover{transform:translateY(-4px);box-shadow:0 12px 30px #3c31500b}.subject-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.subject-icon{width:47px;height:47px;display:grid;place-items:center;border-radius:13px;background:var(--tint);color:var(--color);font-size:25px}.subject-arrow{color:#c4bfce}.subject h3{margin-bottom:2px}.subject p{font-size:10px;color:var(--muted);margin-bottom:16px}.subject-bottom{border-top:1px solid var(--line);padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:10px;color:#9a91a7}.tiny-progress{width:64px;height:4px;background:#eeecf3;border-radius:8px;overflow:hidden}.tiny-progress i{display:block;height:100%;background:var(--color)}.below{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;margin-top:28px}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}.schedule-list{display:grid;gap:10px;margin-top:18px}.schedule-row{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding-bottom:9px;font-size:12px}.schedule-row:last-child{border:0}.number{width:27px;height:27px;display:grid;place-items:center;border-radius:8px;background:#f6f4fa;color:#8e79ad;font-size:10px}.schedule-row small{color:var(--muted);margin-right:auto;font-size:10px}.day-tabs{display:flex;gap:7px;flex-wrap:wrap}.day-tabs button,.filter{background:white;border:1px solid var(--line);border-radius:9px;padding:7px 16px;color:#888095;font-size:11px}.day-tabs button.active{background:#eee8fa;color:#785eaa;border-color:#ddd0f0}.search{width:100%;background:#fff;border:1px solid #e8e5ee;border-radius:11px;padding:12px 17px;margin:14px 0 22px;color:var(--ink)}.subject-hero{background:var(--tint);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;align-items:center;gap:20px;margin:15px 0 25px}.subject-hero .subject-icon{background:white}.subject-hero h1{font-size:24px}.subject-hero p{margin:0;font-size:12px;color:var(--muted)}.lesson-list{display:grid;gap:12px}.lesson-card{display:flex;align-items:center;gap:18px;background:white;border:1px solid var(--line);border-radius:13px;padding:18px}.lesson-card h3{margin:0}.lesson-card p{font-size:11px;color:var(--muted);margin:4px 0 0}.lesson-card .lesson-state{margin-right:auto;font-size:11px;color:#927da9}.back{display:inline-block;font-size:11px;color:#8d7aa5;margin-bottom:10px}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:22px}.lesson-title{font-size:26px;margin:15px 0 8px}.source{font-size:10px;color:#8a8293;margin:10px 0 22px}.summary{background:#f0ecf9;border-right:3px solid #b8a2d4;padding:21px 24px;border-radius:10px;font-size:14px;line-height:2.2;margin:20px 0}.keypoints{padding-right:22px;margin:15px 0 25px}.keypoints li{padding:6px 0;font-size:14px}.example{background:#faf7f0;padding:20px;border-radius:12px;margin:20px 0;font-size:13px}.example strong{display:block;color:#ac8856;font-size:12px;margin-bottom:6px}.quiz{margin-top:28px}.question{margin:18px 0;padding:22px;background:white;border:1px solid var(--line);border-radius:14px}.question>p{font-weight:bold;font-size:14px}.options{display:grid;gap:9px}.option{text-align:right;background:#fff;border:1px solid #e9e6ee;padding:11px 15px;border-radius:9px;font-size:13px;color:var(--ink)}.option:hover:not(:disabled){background:#f7f3fc;border-color:#baa2d7}.option.correct{background:#eef8f1;border-color:#9ccaaa}.option.wrong{background:#fff0ef;border-color:#e0a09b}.option:disabled{cursor:default;color:var(--ink)}.feedback{font-size:12px;margin-top:12px;padding:12px;background:#f8f7fb;border-radius:8px}.lesson-aside{position:sticky;top:20px;align-self:start}.lesson-aside a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:12px}.lesson-aside a.active{color:#8262ac;font-weight:bold}.complete{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap;margin-top:25px}.complete small{color:var(--muted);font-size:10px}.notice{background:#fff8e9;border:1px solid #f0e5cc;padding:18px 22px;border-radius:12px;color:#9c8050;font-size:12px;margin:20px 0}.week-table{overflow:auto;background:white;border:1px solid var(--line);border-radius:14px;margin-top:20px}table{border-collapse:collapse;width:100%;min-width:800px;font-size:11px}th,td{padding:16px 11px;border:1px solid var(--line);text-align:center}th{background:#f5f2fa;color:#8b74a8}td a:hover{color:var(--purple)}.progress-row{display:flex;gap:18px;align-items:center;margin-bottom:17px}.progress-row>div:nth-child(2){flex:1}.progress-track{height:6px;background:#f0edf5;border-radius:10px;overflow:hidden;margin-top:8px}.progress-track span{display:block;background:#b7a0d6;height:100%}.progress-row small{color:var(--muted);font-size:10px}.resource{display:flex;gap:13px;border-bottom:1px solid var(--line);padding:15px 0}.resource strong{font-size:12px}.resource small{display:block;color:var(--muted);font-size:10px}.resource>span{color:#a58bbf}footer{display:flex;justify-content:space-between;color:#aaa3b6;font-size:11px;border-top:1px solid var(--line);margin:15px 42px 0;padding:19px 0}footer span{font-size:10px}#toast{position:fixed;bottom:25px;left:30px;background:#544269;color:white;padding:12px 24px;border-radius:12px;z-index:30;font-size:13px;display:none}.empty{text-align:center;padding:45px;color:var(--muted)}.results{background:#edf7f0;padding:20px;border-radius:12px;font-size:13px}.plan-item{display:flex;gap:12px;align-items:start;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.plan-item b{color:#ab96c7}.plan-item small{display:block;color:var(--muted);font-size:10px}.pill{font-size:10px;background:#f7f0dd;color:#a58b51;padding:3px 9px;border-radius:6px}.hidden{display:none!important}@media(min-width:1550px){main{padding-top:40px}.subjects{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:1100px){.sidebar{width:213px;padding:25px 16px}.main{margin-right:213px}main{padding:25px}.subjects{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-layout{grid-template-columns:minmax(0,1fr)}.lesson-aside{display:none}.hero-art{width:140px}.stat{padding:14px;gap:10px}.stat .icon{padding:5px 9px}.stat strong{font-size:18px}header{padding:0 25px}}@media(max-width:740px){.sidebar{transform:translateX(100%);transition:transform .2s}.sidebar.open{transform:translateX(0);box-shadow:-30px 0 100px #2a1e3c33}.main{margin:0}header{height:65px;padding:0 20px;gap:12px}#menu{display:block;background:transparent;border:0;font-size:20px;color:#8c77a7}#breadcrumb{margin-left:auto}.grade{display:none}main{padding:22px 18px}.hero{padding:25px 22px;min-height:210px}.hero h2{font-size:21px}.hero-art{width:75px;transform:scale(.7);transform-origin:left center}.hero p{max-width:240px}.hero .btn{padding:8px 13px}.stats{gap:8px}.stat{display:block;text-align:center;padding:13px 6px}.stat .icon{display:none}.stat strong{font-size:20px}.stat small{font-size:9px}.subjects{gap:11px}.subject{padding:17px;min-height:175px}.subject h3{font-size:13px}.subject p{font-size:10px;min-height:35px}.subject-icon{width:40px;height:40px;font-size:21px}.below{grid-template-columns:1fr}.section-head{align-items:end}.section-head h2{font-size:17px}.panel{padding:19px}.lesson-title{font-size:23px}.summary{padding:18px}.question{padding:17px}.subject-hero{padding:20px 15px}.subject-hero h1{font-size:20px}.lesson-card{padding:16px 12px;gap:12px}.lesson-card h3{font-size:13px}.lesson-card .lesson-state{font-size:10px}footer{margin:15px 18px 0}.hero-art .book{box-shadow:10px 12px 0 #d9cce9}.intro h1{font-size:24px}}
