@charset "UTF-8";
:root{--bg:#f4f6f7;--surface:#fff;--ink:#172a28;--muted:#788480;--line:#e5eae7;--green:#0b5d49;--light:#e9f3ed;--lime:#d4ed88;--radius:16px;--shadow:0 8px 30px #193d2910;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-size:16px}
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37px}.brandmark{width:42px;height:44px;background:var(--green);border-radius:12px;color:white;font-weight:600;font-family:"Songti SC",serif;font-size:26px;display:grid;place-items:center}.brand strong{font-size:19px;letter-spacing:-.5px;white-space:nowrap}.brand small{display:block;letter-spacing:1.8px;font-size:12px;color:var(--muted);margin-top:5px}.nav-label{font-size:12px;letter-spacing:1.5px;color:#909c97;margin:13px 14px}.nav{display:flex;flex-direction:column;gap:7px}.nav a{display:flex;gap:13px;align-items:center;padding:13px 14px;border-radius:9px;font-size:14px;color:#6a7974}.nav a.active{background:var(--light);color:var(--green);font-weight:650}.nav a.active:after{content:"";height:5px;width:5px;background:var(--green);border-radius:50%;margin-left:auto}.nav a:hover{background:#f0f5f1}.side-guide{margin-top:auto;border:1px solid #e0e9de;padding:17px 14px;border-radius:12px;background:#f8faf4}.side-guide .icon{color:var(--green);margin-bottom:10px}.side-guide h3{font-size:14px;margin-bottom:7px}.side-guide p{font-size:12px;line-height:1.8;color:var(--muted)}.side-guide a{margin-top:13px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--green);font-weight:600}.side-footer{display:flex;align-items:center;gap:9px;font-size:12px;color:#929d97;margin:23px 9px 0}.live-dot{width:6px;height:6px;border-radius:50%;background:#7fa670}.shell{margin-left:226px}.topbar{height:82px;border-bottom:1px solid var(--line);background:#ffffffdf;padding:0 42px;display:flex;align-items:center;justify-content:space-between;gap:24px}.breadcrumb{display:flex;gap:12px;color:#86908d;font-size:13px;align-items:center;white-space:nowrap}.breadcrumb strong{font-weight:500;color:#253e35}.top-actions{display:flex;align-items:center;gap:22px}.search{display:flex;align-items:center;gap:9px;background:#f4f6f5;border:1px solid transparent;padding:10px 14px;border-radius:8px;color:#83918b}.search:focus-within{border-color:#88b89e}.search 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p{font-size:14px;margin-top:10px;color:var(--muted)}.date{font-size:12px;color:#7c8982;display:flex;gap:8px;align-items:center}.feature-row{display:grid;grid-template-columns:minmax(0,2.45fr) minmax(260px,1fr);gap:22px;margin-bottom:30px}.feature{background:#0b4f40;border-radius:var(--radius);color:white;padding:27px 30px;display:flex;justify-content:space-between;position:relative;overflow:hidden;min-height:219px}.feature:after{content:"";position:absolute;inset:auto -70px -140px auto;width:300px;height:300px;border:1px solid #a1c59020;border-radius:50%;pointer-events:none}.feature-copy{z-index:1;max-width:65%}.feature .tag{display:inline-flex;align-items:center;gap:6px;border:1px solid #ffffff30;color:#d3e9ce;border-radius:4px;font-size:12px;letter-spacing:1px;padding:4px 7px;margin-bottom:13px}.feature h2{font-size:26px;line-height:1.5;font-weight:560;letter-spacing:.5px}.feature p{font-size:12px;color:#b1cabf;margin-top:8px;line-height:1.7}.button{border:1px solid 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svg{height:30px;width:30px}.continue-info{flex:1}.continue-info h3{font-size:14px;font-weight:600}.continue-info p{font-size:12px;color:#94a08f;margin-top:7px}.continue-progress{width:170px;margin:0 18px;font-size:12px;color:#8a968b}.progress-line{height:4px;border-radius:3px;background:#e8eee6;overflow:hidden;margin:8px 0}.progress-line span{display:block;height:100%;background:#74985c;border-radius:3px}.continue-progress small{font-size:12px}.filters{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:18px}.tabs{display:flex;gap:8px;flex-wrap:wrap}.tabs button{font-size:12px;border:1px solid transparent;padding:8px 14px;border-radius:6px;background:transparent;color:#728174}.tabs button.active{background:#e3ece0;color:#345c30;font-weight:600}.tabs button:hover{background:#eaf0e7}.select-small{background:white;border:1px solid var(--line);border-radius:6px;padding:8px 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svg{width:30px;height:30px}.art-green{background:#e5eddb;color:#426630}.art-blue{background:#e0e9f1;color:#455f77}.art-peach{background:#f1e7dd;color:#926a4c}.art-lilac{background:#e9e5ef;color:#75688a}.art-teal{background:#dcebe7;color:#417b6a}.art-slate{background:#e5e9e8;color:#5c716b}.course-art .type-badge{position:absolute;bottom:11px;right:13px;background:#ffffffb8;backdrop-filter:blur(5px);padding:4px 7px;border-radius:4px;display:flex;align-items:center;gap:4px;font-size:12px;letter-spacing:.5px}.type-badge svg{height:11px;width:11px}.course-body{padding:18px 19px 14px;display:flex;flex-direction:column;flex:1}.course-meta{display:flex;align-items:center;justify-content:space-between;gap:7px;font-size:12px;color:#869687;margin-bottom:10px}.course-meta .level{color:#687d59;background:#f0f4eb;padding:3px 6px;border-radius:3px}.course-card h3{font-size:15px;line-height:1.6;font-weight:600;margin-bottom:8px}.course-card 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minmax(275px,1fr);gap:24px;align-items:start}.player{background:#102f29;color:white;aspect-ratio:16/9;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;position:relative;padding:26px}.player .eyebrow{color:#aac488;margin-top:17px}.play-large{background:#cfe58f;color:#21422e;border:0;display:grid;place-items:center;width:62px;height:62px;border-radius:50%;margin:14px auto}.play-large svg{height:25px;width:25px}.player h2{font-size:23px;margin:8px 0;line-height:1.5;font-weight:550}.player p{font-size:12px;color:#99b9a8;line-height:1.8}.player-controls{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:14px 19px;border-top:1px solid #ffffff18;font-size:12px;color:#b9cbbc}.player video{width:100%;height:100%;position:absolute;inset:0;background:#09261f}.lesson-info,.article,.curriculum{background:white;border:1px solid var(--line);border-radius:12px;padding:26px;margin-top:22px}.lesson-info h2{font-size:20px;line-height:1.6;margin-bottom:11px}.lesson-info p{font-size:14px;color:#81917d;line-height:1.9}.lesson-info .section-heading{margin-bottom:0}.lesson-chips{display:flex;gap:9px;margin:17px 0}.chip{background:#f0f4e9;color:#6c8360;padding:5px 9px;border-radius:4px;font-size:12px}.curriculum{margin-top:0;padding:0;overflow:hidden}.curriculum h3{font-size:16px;padding:22px;border-bottom:1px solid var(--line)}.curriculum h3 small{font-size:12px;display:block;margin-top:8px;color:#93a086;font-weight:400}.lesson{display:flex;gap:12px;text-align:left;border:0;border-bottom:1px solid #f0f3ed;background:white;width:100%;padding:18px 20px;align-items:center;font-size:12px;line-height:1.7}.lesson.active{color:var(--green);background:#eff5e9}.lesson .number{color:#9aab8d;font-size:12px;flex-shrink:0}.lesson .lesson-text{flex:1}.lesson small{color:#95a48a;font-size:12px}.lesson svg{width:16px;height:16px}.course-note{padding:21px;font-size:12px;color:#8b9981;line-height:1.8;background:#f7faf3}.article{margin-top:0;padding:34px}.article .eyebrow{margin-bottom:15px}.article h2{font-size:25px;line-height:1.5;margin-bottom:19px}.article h3{font-size:18px;margin:25px 0 13px}.article p{font-size:16px;line-height:1.95;color:#566951;white-space:pre-line}.article blockquote{border-left:3px solid #93b574;margin:20px 0;padding:16px 22px;background:#f4f8ec;font-size:14px;line-height:1.9;color:#5c704f}.login-layout{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;background:white}.login-brand{background:#104f40;padding:55px 65px;color:white;display:flex;flex-direction:column;position:relative;overflow:hidden}.login-brand .brand{padding:0}.login-brand .brandmark{background:#cce58e;color:#244f38}.login-brand .brand small{color:#8eb7a1}.login-statement{margin:auto 0;padding:70px 0}.login-statement .eyebrow{color:#abd580}.login-statement h1{font-size:42px;line-height:1.6;font-weight:500;margin:18px 0 25px;font-family:"Songti SC","STSong",serif}.login-statement p{max-width:360px;font-size:14px;line-height:2;color:#afcdbb}.login-path{margin-top:42px;display:flex;gap:24px;font-size:12px;color:#a2c4ac}.login-path span{border-top:1px solid #85ad9255;padding-top:14px}.login-brand footer{font-size:12px;color:#85ab96}.login-form-wrap{display:flex;justify-content:center;align-items:center;padding:45px}.login-form{width:370px;max-width:100%}.login-form h2{font-size:28px;letter-spacing:-.5px;margin:10px 0}.login-form>p{font-size:14px;color:#8a9883;line-height:1.8;margin:14px 0 30px}.login-form .button{width:100%;padding:13px}.login-meta{font-size:12px;color:#93a186;margin:17px 0;line-height:1.8}.login-form>a{display:block;text-align:center;font-size:12px;color:#768866;margin-top:24px}.login-form .field input{padding:13px}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#839477;margin-bottom:21px}.back-link svg{height:14px;width:14px}
@media(min-width:1600px){.course-art{height:190px}.feature{min-height:240px}.feature h2{font-size:30px}.course-card h3{font-size:17px}.course-card .description{font-size:14px}.content{padding-top:38px}}
@media(max-width:1180px){.sidebar{width:200px;padding-left:14px;padding-right:14px}.brand{gap:8px}.brand strong{font-size:17px}.brand small{font-size:8px}.shell{margin-left:200px}.content{padding:27px}.topbar{padding:0 27px}.search input{width:160px}.feature h2{font-size:23px}.feature{padding:23px}.feature-index{display:none}.feature-copy{max-width:100%}.course-grid{gap:15px}.course-art{padding:20px}.course-art .art-copy{font-size:28px}.art-symbol{width:48px;height:48px}.admin-row{grid-template-columns:minmax(200px,2fr) .7fr .8fr 130px;padding:17px;gap:12px}.admin-date{display:none}.top-actions{gap:13px}.continue-progress{width:135px;margin:0 8px}}
@media(max-width:960px){.sidebar{width:185px}.shell{margin-left:185px}.brand strong{font-size:16px}.brandmark{width:35px;height:38px;font-size:22px}.brand small{font-size:7px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.search{display:none}.feature-row{grid-template-columns:minmax(0,1.4fr) minmax(230px,1fr);gap:15px}.feature h2{font-size:21px}.feature p{font-size:12px}.progress-card{padding:20px}.date{display:none}.continue-progress{display:none}.detail-grid{grid-template-columns:1fr}.curriculum{order:-1}.curriculum h3{padding:16px}.lesson{padding:12px 18px}.course-note{display:none}.login-brand{padding:40px}.login-statement h1{font-size:34px}.admin-metrics{gap:12px}.metric{padding:16px}.admin-row{grid-template-columns:minmax(180px,2fr) .7fr 120px}.admin-type{display:none}}
@media(max-width:700px){.sidebar{transform:translateX(-100%);width:226px;box-shadow:20px 0 90px #12352920;transition:transform .2s}.sidebar.open{transform:translateX(0)}.shell{margin-left:0}.mobile-menu{display:grid;place-items:center;padding:0}.topbar{height:65px;padding:0 20px;gap:14px}.breadcrumb{flex:1;font-size:12px}.breadcrumb>span:first-child{display:none}.breadcrumb>span:nth-child(2){display:none}.top-actions{gap:8px}.divider,.user .username,.top-actions>.button{display:none}.content{padding:24px 19px}.page-heading h1{font-size:24px}.page-heading p{font-size:12px;line-height:1.7}.page-heading{margin-bottom:21px;align-items:flex-start}.page-heading .button{padding:9px 11px;font-size:12px}.eyebrow{font-size:12px}.feature-row{grid-template-columns:1fr}.feature{min-height:210px}.feature h2{font-size:24px}.feature-index{display:flex;width:31%}.feature-copy{max-width:66%}.feature-index div{font-size:12px;gap:8px}.progress-card{display:none}.continue-card{gap:12px;padding:12px}.continue-art{height:57px;width:60px}.continue-info h3{font-size:12px}.continue-info p{font-size:12px}.continue-card .button{font-size:0;padding:9px}.continue-card .button svg{width:18px;height:18px}.section-heading h2{font-size:17px}.section-heading h2 small{display:none}.filters{align-items:flex-start;gap:9px}.tabs{gap:3px}.tabs button{padding:7px 9px;font-size:12px}.select-small{font-size:12px;padding:7px 5px}.course-grid{gap:13px}.course-art{height:119px;padding:17px}.course-art .art-copy{font-size:23px}.art-copy small{font-size:12px;margin-top:8px}.art-symbol{height:33px;width:33px;border-radius:9px}.art-symbol svg{width:19px;height:19px}.course-body{padding:13px 12px 11px}.course-meta{font-size:12px;gap:2px}.course-meta .level{padding:3px 4px}.course-card h3{font-size:13px;line-height:1.7}.course-card .description{font-size:12px;margin-bottom:12px}.course-bottom{font-size:12px}.course-bottom .arrow{display:none}.bottom-note{font-size:12px}.admin-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.metric strong{font-size:25px}.admin-row{grid-template-columns:minmax(0,1fr) auto;padding:15px 13px;gap:12px}.admin-row.header{display:none}.admin-row>.admin-status{display:none}.admin-course{gap:9px}.admin-course h3{font-size:12px}.mini-art{width:44px;height:44px}.row-actions{flex-direction:column;gap:4px}.row-actions button{font-size:12px;padding:3px}.admin-course small{font-size:12px}.admin-bottom{font-size:12px}.notice{font-size:12px}.dialog-head,.dialog-body{padding:20px}.dialog-footer{padding:17px 20px;flex-wrap:wrap}.field-grid{grid-template-columns:1fr;gap:0}.article{padding:24px}.article h2{font-size:22px}.article p{font-size:15px}.lesson-info{padding:21px}.lesson-info .section-heading{flex-wrap:wrap}.player h2{font-size:18px}.player .eyebrow{margin:0;font-size:12px}.play-large{width:45px;height:45px;margin:8px auto}.player p{font-size:12px}.player-controls{padding:10px;font-size:12px}.login-layout{grid-template-columns:1fr}.login-brand{padding:28px 26px;min-height:auto}.login-brand .brand strong{font-size:19px}.login-brand .brand small{font-size:12px}.login-statement{padding:30px 0 10px}.login-statement h1{font-size:29px;margin:7px 0 11px}.login-statement p,.login-path,.login-brand footer{display:none}.login-form-wrap{padding:32px 26px}.login-form h2{font-size:25px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.brand small{font-size:9px;line-height:1.4;letter-spacing:1.2px}.brand strong{font-size:18px}.brandmark{flex-shrink:0}.feature{min-height:212px;padding:23px 28px}.feature h2{font-size:24px;line-height:1.3}.feature .tag{margin-bottom:10px}.feature .button{margin-top:12px;padding:8px 12px}.feature-index{width:32%}.feature-index div{font-size:12px}.button,.tabs button,.select-small,.field,.row-actions button{font-size:14px}.course-card h3{font-size:16px}.course-card .description{font-size:14px}.course-meta,.course-bottom{font-size:12px}.course-bottom>span:nth-child(2){font-size:12px}.course-bottom .arrow{display:none}.admin-course h3{font-size:15px}.admin-row{font-size:14px}.section-heading a{font-size:14px}.continue-info h3{font-size:15px}.course-art{height:150px}.tabs button{min-height:38px}.icon-button{width:38px;height:38px}.field input,.field select,.field textarea{font-size:16px}.notice{font-size:13px}.topbar .user,.search input{font-size:14px}.brand{gap:10px;padding-left:4px;padding-right:0}.mobile-search{margin-bottom:18px}
@media(max-width:1180px){.brand{gap:7px}.brand strong{font-size:16px}.brand small{font-size:8px}.brandmark{width:35px;height:38px}.feature{padding:22px}.feature-copy{max-width:100%}.course-bottom{flex-wrap:wrap;row-gap:7px}.admin-course h3{font-size:14px}.feature h2{font-size:23px}}
@media(max-width:960px){.mobile-search{display:flex!important;background:white;border-color:var(--line)}.mobile-search input{width:100%}.feature-row{grid-template-columns:1fr}.feature-index{display:flex}.feature-copy{max-width:66%}.progress-card{display:none}.admin-row{grid-template-columns:minmax(180px,2fr) .7fr 130px}.brand strong{font-size:15px}.brand small{font-size:7px}}
@media(max-width:700px){.admin-row{grid-template-columns:minmax(0,1fr) auto}.admin-row .row-actions button{font-size:12px}.feature-copy{max-width:100%}.feature-index{display:none}.feature{min-height:230px}.feature h2{font-size:26px}.filters{flex-wrap:wrap}.filters .search{width:100%}.filters .search input{width:100%}.tabs button,.select-small{font-size:13px}.course-art{height:125px}.course-card h3{font-size:15px}.course-card .description{font-size:13px}.page-heading .button{font-size:13px}.course-meta{flex-wrap:wrap}.continue-info h3{font-size:13px}.continue-card .button{font-size:0}.brand strong{font-size:18px}.brand small{font-size:9px}.course-bottom{row-gap:8px}.field input,.field select{min-height:44px}.admin-metrics .metric strong{font-size:27px}.lesson{font-size:14px}.player{aspect-ratio:auto;min-height:250px}.player h2{font-size:21px}.player-controls span:last-child{max-width:55%;text-align:right}}
@media(max-width:520px){.course-grid{grid-template-columns:1fr}.course-art{height:166px;padding:26px}.course-art .art-copy{font-size:33px}.art-copy small{font-size:13px}.art-symbol{height:60px;width:60px;border-radius:15px}.art-symbol svg{height:29px;width:29px}.course-body{padding:20px}.course-card h3{font-size:17px}.course-card .description{font-size:14px}.course-meta{font-size:12px}.course-bottom{flex-wrap:nowrap}.continue-info h3{font-size:14px}.continue-art{width:52px}.course-bottom>span:nth-child(2){font-size:12px}.admin-metrics{gap:10px}.metric{padding:16px}.admin-course{gap:10px}.mini-art{display:none}.admin-course h3{font-size:14px}.admin-row{padding:18px 15px}.login-brand .brandmark{width:40px;height:43px}.login-form .field{font-size:14px}.login-form>p{font-size:14px}.login-meta{font-size:12px}}
.login-layout>section{min-width:0}.login-form{min-width:0}
.dialog form{display:flex;flex-direction:column;max-height:90vh}.dialog-body{overflow-y:auto}.dialog-head,.dialog-footer{flex-shrink:0}
@media(max-width:700px){.sidebar{box-shadow:none}.sidebar.open{box-shadow:20px 0 90px #12352920}}