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#ffffff07;border-radius:100%;width:390px;height:390px;right:110px;bottom:-360px}.hero h2{font-size:30px;line-height:1.22;margin:5px 0 11px;max-width:470px}.hero p{color:#b8c6d6;font-size:13px;max-width:490px}.hero .hero-mark{width:188px;height:188px;opacity:.95;position:relative;z-index:1;filter:drop-shadow(0 10px 40px #f2692d22)}.hero .hero-mark path.light{fill:#ffbc76}.hero-actions{display:flex;gap:10px;margin-top:20px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:21px 0 30px}.stat{background:white;border:1px solid var(--line);border-radius:15px;padding:19px 20px;display:flex;align-items:center;gap:14px}.stat-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:#fff3eb;color:#e9693f;font-size:22px}.stat:nth-child(2) .stat-icon{color:#517ba9;background:#ecf3fa}.stat:nth-child(3) .stat-icon{color:#8d6fba;background:#f4effa}.stat:nth-child(4) .stat-icon{color:#4b9c7c;background:#ecf7f1}.stat 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#d8dfe5;border-radius:8px;font-weight:800;font-size:12px}.quiz-status{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:19px}.notice{background:#fff9ed;border:1px solid #f9e5c0;padding:14px 17px;border-radius:11px;color:#876837;font-size:12px;line-height:1.6;margin-bottom:19px}.notice.blue{background:#eef5fc;border-color:#d3e5f5;color:#486988}.notice.red{background:#fff0ef;border-color:#f6d5d2;color:#a14949}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-bottom:20px;overflow:auto}.tab{background:none;border:0;padding:14px 12px;font-weight:800;color:#8b98a8;white-space:nowrap;border-bottom:2px solid transparent}.tab.active{border-color:var(--orange);color:#293948}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:#f7f8fa}.auth-left{background:linear-gradient(150deg,#111b2a,#233750);color:white;padding:9vh 8vw;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.auth-left:after{content:'';position:absolute;right:-180px;bottom:-220px;border:100px solid #ffffff08;width:480px;height:480px;border-radius:100%}.auth-logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px}.auth-logo img{height:47px}.auth-left h1{font-size:clamp(36px,4vw,56px);max-width:520px}.auth-left p{color:#b3c1d2;max-width:480px}.auth-right{display:flex;align-items:center;justify-content:center;padding:40px}.auth-form{width:min(100%,405px)}.auth-form h2{font-size:31px;margin-bottom:9px}.auth-form p{color:#8b99a8;font-size:13px;margin-bottom:30px}.auth-form .btn{width:100%;margin-top:6px}.auth-footer{font-size:12px;margin-top:21px;text-align:center;color:#8697a7}.auth-footer button{background:none;border:0;color:#df6845;font-weight:800}.modal-backdrop{position:fixed;inset:0;background:#132030b3;z-index:100;display:grid;place-items:center;padding:20px}.modal{background:white;border-radius:18px;padding:25px;width:min(100%,570px);max-height:90vh;overflow:auto;box-shadow:0 20px 80px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:21px}.modal-header h2{margin:0}.close{background:#f0f3f5;border:0;border-radius:9px;padding:8px 11px;font-size:18px}#toast{position:fixed;right:22px;bottom:22px;z-index:200;background:#1d3044;color:white;border-radius:12px;padding:14px 19px;max-width:420px;box-shadow:0 14px 36px 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@media(max-width:1100px){.app-shell{grid-template-columns:206px 1fr}.stats{grid-template-columns:repeat(2,1fr)}.cols{grid-template-columns:1fr}.feature-grid{grid-template-columns:repeat(2,1fr)}.hero .hero-mark{width:130px}}@media(max-width:780px){.app-shell{display:block;padding-bottom:71px}.sidebar{display:none}.mobile-brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:13px}.mobile-brand img{height:34px}.topbar{height:68px;padding:0 19px}.breadcrumbs{display:none}.content{padding:25px 16px 55px}.page-head{margin-bottom:19px}.page-head h1{font-size:27px}.hero{padding:23px 21px;min-height:221px}.hero h2{font-size:23px;max-width:280px}.hero .hero-mark{width:95px;height:110px;margin-right:-15px}.hero p{max-width:260px}.hero-actions{flex-wrap:wrap}.stats{gap:9px;margin:15px 0 24px}.stat{padding:13px 12px;gap:8px}.stat-icon{width:35px;height:35px;font-size:17px}.stat .num{font-size:17px}.stat .label{font-size:10px}.course-layout{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr 1fr;gap:9px}.feature{padding:14px}.feature p{font-size:11px}.panel{padding:15px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:45;display:flex;justify-content:space-around;background:white;border-top:1px solid var(--line);padding:7px 4px max(7px,env(safe-area-inset-bottom));box-shadow:0 -6px 21px #101d2a08}.bottom-nav button{border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;color:#8593a2;font-size:10px;font-weight:700;min-width:58px;padding:2px}.bottom-nav button.active{color:#e9653c}.bottom-nav button span{font-size:21px}.auth-wrap{grid-template-columns:1fr}.auth-left{display:none}.auth-right{padding:45px 20px}.chat-box{min-height:65vh}.chat-messages{max-height:56vh}.modal{padding:18px}.filterbar{flex-wrap:wrap}.filterbar .input{max-width:100%}.course-card{align-items:flex-start}.course-symbol{width:44px;height:44px}.course-end{align-self:center}.data-table{min-width:680px}.user-menu .user-info{display:none}}