:root{color-scheme:light;--ink:#172d3b;--muted:#62747c;--line:#dce5e7;--paper:#fff;--canvas:#f3f6f7;--teal:#087d78;--teal-dark:#05635f;--pale:#e6f3ef;--red:#ae373c;--shadow:0 14px 45px #1837440a;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-size:15px;line-height:1.6}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #3ab5ad;outline-offset:3px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:16px;z-index:100;background:#fff;padding:10px 18px;border-radius:8px}.skip-link:focus{top:12px}
.account-header{min-height:78px;background:#ffffffec;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:15px clamp(20px,4vw,64px);gap:28px}.brand-link{display:flex;align-items:center;gap:12px;color:var(--ink);white-space:nowrap}.brand-link:hover{text-decoration:none}.brand-symbol{height:37px;width:37px;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:800;font-size:20px;border-radius:10px}.brand-word{font-size:17px;letter-spacing:.12em;font-weight:750}.brand-subtitle{border-left:1px solid #cad6db;padding-left:13px;font-size:14px;letter-spacing:0;font-weight:500}.account-nav{display:flex;gap:5px;align-items:center}.account-nav a{color:var(--muted);padding:8px 14px;border-radius:8px;font-size:14px;font-weight:600}.account-nav a[aria-current=page]{background:var(--pale);color:var(--teal-dark)}.account-nav a:hover{background:#edf3f3;text-decoration:none}.account-user{display:flex;align-items:center;gap:17px;font-size:13px;color:var(--muted)}.account-user>span{max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-button{border:0;background:transparent;color:var(--teal);padding:5px;font-weight:600}.text-button:hover{text-decoration:underline}.button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;padding:9px 18px;font-weight:650;font-size:14px;line-height:1.5;text-decoration:none}.button:hover{background:#f5f8f8;text-decoration:none}.button.primary{background:var(--teal);border-color:var(--teal);color:white}.button.primary:hover{background:var(--teal-dark)}.button.danger{color:var(--red);border-color:#edd1d2}.button.full{width:100%}.eyebrow{display:block;color:var(--teal);font-size:11px;font-weight:750;letter-spacing:.17em;margin-bottom:12px}.muted{color:var(--muted)}.fine-print{font-size:12px;color:var(--muted)}.tag{display:inline-flex;align-items:center;background:var(--pale);color:var(--teal-dark);padding:3px 9px;border-radius:5px;font-size:12px;font-weight:650;white-space:nowrap}.tag.neutral{background:#edf1f4;color:#61707e}.tag.disabled{background:#f6ebea;color:#9a4545}.message{font-size:13px;line-height:1.65;margin:12px 0;min-height:0}.message:empty{display:none}.message[data-kind=error]{color:var(--red)}.message[data-kind=success]{color:var(--teal-dark)}.message[data-kind=warning]{color:#886120}.status-banner:not(:empty){padding:12px 16px;border:1px solid var(--line);border-radius:9px;background:white;margin:18px 0}.field{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:650;margin-bottom:19px}.field input,.field select,.search-input{width:100%;min-height:45px;border:1px solid #ccd9dc;border-radius:8px;background:#fff;padding:10px 12px;color:var(--ink);font-size:14px;font-weight:450}.field input::placeholder{color:#94a0a6}.field small{color:var(--muted);font-size:12px;font-weight:400;line-height:1.6}.field input:focus,.field select:focus,.search-input:focus{border-color:var(--teal);outline:2px solid #087d781c;outline-offset:0}.field input:disabled{background:#f5f7f8;color:var(--muted)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:22px}.password-control{position:relative}.password-control input{padding-right:62px}.password-control button{position:absolute;right:9px;top:8px;background:transparent;border:0;color:var(--muted);font-size:12px;padding:6px}.password-control button:hover{color:var(--teal)}
.login-page{min-height:100vh;min-height:100dvh;background:#fff}.login-layout{min-height:100vh;min-height:100dvh;display:grid;grid-template-columns:minmax(440px,1.2fr) minmax(400px,1fr)}.login-story{position:relative;overflow:hidden;display:flex;flex-direction:column;padding:clamp(32px,5vw,80px);background:#152e3b;color:#fff;isolation:isolate}.login-story:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 80% 60%,#217b7950,transparent 60%),linear-gradient(135deg,transparent 50%,#43626c15 50%);pointer-events:none}.login-story .brand-link{color:white}.login-story .brand-symbol{background:#ffffff17;border:1px solid #ffffff32}.login-story .brand-subtitle{color:#b7cdd1;border-color:#ffffff2b}.story-content{margin:auto 0;padding:65px 0 32px;max-width:560px}.story-content .eyebrow{color:#83cabe}.story-content h1{font-size:clamp(32px,3.2vw,48px);font-weight:650;letter-spacing:-.035em;line-height:1.35;margin:0 0 20px}.story-content>p{font-size:15px;line-height:1.9;color:#b8cdd2;max-width:470px}.story-diagram{height:200px;position:relative;margin:35px 0 30px;display:flex;align-items:center;justify-content:center;gap:14px;border:1px solid #ffffff13;border-radius:16px;background:linear-gradient(135deg,#ffffff06,transparent)}.story-node{display:flex;flex-direction:column;gap:12px;align-items:center;color:#c9e0df;font-size:12px}.story-node svg{height:56px;width:56px;padding:13px;background:#ffffff08;border:1px solid #ffffff24;border-radius:13px;fill:none;stroke:#8dcfc5;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.story-node.active svg{background:#267d7340;border-color:#5fbca288}.story-connector{height:1px;background:#89bfb349;width:clamp(20px,4vw,60px);margin-bottom:31px;position:relative}.story-connector:after{content:"";position:absolute;right:0;top:-3px;width:6px;height:6px;border-top:1px solid #89bfb3;border-right:1px solid #89bfb3;transform:rotate(45deg)}.story-footer{display:flex;align-items:center;gap:9px;font-size:11px;letter-spacing:.06em;color:#89a6af}.story-footer:before{content:"";width:6px;height:6px;border-radius:50%;background:#79c0ae}.login-side{display:flex;flex-direction:column;justify-content:center;padding:clamp(30px,6vw,96px);position:relative}.login-form-wrap{max-width:380px;width:100%;margin:auto}.login-form-wrap h2{font-size:29px;letter-spacing:-.03em;margin:0 0 8px;font-weight:650}.login-form-wrap>p{font-size:14px;color:var(--muted);margin:0 0 32px}.login-form-wrap .button.primary{min-height:48px;margin-top:8px}.login-help{margin-top:28px;padding-top:23px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.9}.login-help strong{font-weight:550;color:var(--ink)}.login-footer{max-width:380px;width:100%;margin:30px auto 0;color:#8d9a9f;font-size:11px}.login-side .message{margin-top:17px}
.account-main{max-width:1220px;margin:0 auto;padding:45px clamp(20px,4vw,48px) 70px}.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:31px}.page-heading h1{font-size:30px;line-height:1.3;letter-spacing:-.03em;margin:0 0 10px;font-weight:650}.page-heading p{margin:0;color:var(--muted);font-size:14px}.page-heading .eyebrow{margin-bottom:10px}.settings-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:30px}.settings-sidebar{display:flex;flex-direction:column;gap:5px;align-self:start}.settings-sidebar button{border:0;text-align:left;background:transparent;color:var(--muted);padding:12px 15px;border-radius:9px;font-size:14px;line-height:1.4}.settings-sidebar button[aria-current=page]{background:#e2eeec;color:var(--teal-dark);font-weight:650}.settings-sidebar button:hover{background:#e8efee}.settings-sidebar p{font-size:12px;line-height:1.8;color:#89979d;padding:7px 15px}.panel{background:white;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:28px;margin-bottom:22px}.panel h2{font-size:18px;margin:0 0 6px;font-weight:650}.panel-intro{font-size:13px;color:var(--muted);margin:0 0 25px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px}.section-heading h2{margin:0}.profile-summary{display:flex;align-items:center;gap:18px;padding:3px 0 25px;border-bottom:1px solid var(--line);margin-bottom:25px}.avatar{width:58px;height:58px;display:grid;place-items:center;flex:none;background:var(--pale);color:var(--teal-dark);font-size:23px;border-radius:15px;font-weight:650}.profile-name{font-size:18px;font-weight:650;margin:0 0 4px}.profile-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:12px;flex-wrap:wrap}.profile-details{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:0}.profile-details dt{font-size:12px;color:var(--muted);margin-bottom:4px}.profile-details dd{font-size:14px;margin:0;overflow-wrap:anywhere}.compact-form{max-width:490px}.table-wrap{overflow:auto;margin:0 -4px}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.03em;padding:12px 12px;background:#f7f9fa;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:16px 12px;border-bottom:1px solid #edf1f2;vertical-align:middle}tbody tr:last-child td{border-bottom:0}.user-cell strong{display:block;font-size:14px;font-weight:600}.user-cell small{color:var(--muted)}.user-actions{display:flex;gap:12px;white-space:nowrap}.user-actions button{font-size:12px}.checkbox-field{display:flex;align-items:flex-start;gap:9px;font-size:13px;margin:4px 0 18px}.checkbox-field input{accent-color:var(--teal);margin-top:5px}.notice{padding:12px 14px;background:#fff8e9;border:1px solid #efdfb8;border-radius:8px;color:#7b622c;font-size:12px;margin-bottom:18px}.model-list{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.model-list button{font-size:12px;max-width:100%;overflow-wrap:anywhere;white-space:normal;text-align:left;padding:5px 9px;min-height:34px}.key-state{display:flex;gap:7px;align-items:center;color:var(--muted);font-size:12px;margin:0 0 19px}.key-state:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#a7b4b8}.key-state[data-ready=true]:before{background:#359b7d}.loading{color:var(--muted);padding:24px 0;font-size:13px}.empty-state{text-align:center;padding:45px 18px;color:var(--muted);font-size:14px}.empty-state strong{display:block;font-size:17px;margin:8px 0;color:var(--ink);font-weight:600}.empty-icon{height:48px;width:48px;margin:0 auto 15px;display:grid;place-items:center;border-radius:13px;background:var(--pale);color:var(--teal);font-size:25px}.course-toolbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:23px}.course-toolbar .search-input{max-width:360px}.course-count{font-size:13px;color:var(--muted)}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.course-card{display:flex;flex-direction:column;min-width:0;background:white;border:1px solid var(--line);border-radius:13px;overflow:hidden;box-shadow:var(--shadow)}.course-cover{height:112px;display:flex;align-items:center;justify-content:space-between;padding:23px;background:linear-gradient(120deg,#e0eeeb,#eef3f5);border-bottom:1px solid #e0e9e9}.course-cover svg{height:59px;width:59px;fill:none;stroke:#4c8c82;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}.course-cover .tag{background:#ffffffb0}.course-body{padding:21px;display:flex;flex-direction:column;flex:1}.course-card h2{font-size:17px;line-height:1.65;margin:0 0 12px;font-weight:650;overflow-wrap:anywhere}.course-card p{color:var(--muted);font-size:12px;margin:0 0 19px}.course-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto}.course-bottom small{color:#7a8c93;font-size:11px}.course-bottom .button{min-height:38px;padding:7px 12px;font-size:12px}.course-footer{font-size:12px;color:var(--muted);margin:26px 0 0}
.account-dialog{border:1px solid var(--line);padding:0;border-radius:15px;width:min(520px,calc(100vw - 32px));max-height:calc(100dvh - 40px);box-shadow:0 30px 100px #102c4050;color:var(--ink)}.account-dialog::backdrop{background:#152d3b66;backdrop-filter:blur(3px)}.dialog-inner{padding:28px}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:10px}.dialog-heading h2{font-size:20px;margin:0}.dialog-close{font-size:24px;color:var(--muted);border:0;background:transparent;padding:0 6px;line-height:1.4}.account-dialog .form-actions{justify-content:flex-end}.account-dialog .panel-intro{margin-bottom:23px}.dialog-danger-label{font-size:13px;color:var(--muted);line-height:1.8}.dialog-target{color:var(--ink);font-weight:600;overflow-wrap:anywhere}.mobile-brand{display:none}
@media(min-width:1500px){.login-story{padding:76px 90px}.story-content{max-width:620px}.story-diagram{height:230px}}
@media(max-width:1050px){.account-header{gap:16px;padding:16px 25px;flex-wrap:wrap}.brand-subtitle{display:none}.account-nav{gap:0}.account-nav a{padding:8px 11px}.account-user{gap:10px}.settings-layout{grid-template-columns:160px minmax(0,1fr);gap:20px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.login-layout{grid-template-columns:minmax(340px,1fr) minmax(340px,1fr)}.login-story{padding:35px}.login-side{padding:40px}.story-content h1{font-size:35px}}
@media(max-width:720px){.login-layout{display:block;min-height:100dvh}.login-story{display:none}.login-side{min-height:100dvh;padding:28px 25px}.mobile-brand{display:flex;margin-bottom:55px}.login-form-wrap{max-width:420px}.login-footer{max-width:420px}.login-form-wrap h2{font-size:27px}.account-header{padding:14px 20px;gap:13px}.brand-word{font-size:15px}.brand-symbol{width:32px;height:32px;font-size:18px;border-radius:8px}.account-nav{order:3;width:100%;border-top:1px solid #eaf0f1;padding-top:10px;margin-bottom:-5px}.account-nav a{flex:1;text-align:center;font-size:13px}.account-user{margin-left:auto;font-size:11px}.account-user>span{max-width:160px}.account-user .text-button{font-size:12px}.account-main{padding:29px 18px 50px}.page-heading{gap:14px;align-items:flex-start;margin-bottom:24px}.page-heading h1{font-size:26px}.page-heading p{font-size:13px}.page-heading .button{white-space:nowrap;font-size:12px;padding:8px 11px;min-height:38px}.settings-layout{display:block}.settings-sidebar{flex-direction:row;gap:4px;overflow:auto;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:12px}.settings-sidebar button{white-space:nowrap;font-size:13px;padding:10px 14px}.settings-sidebar p{display:none}.panel{padding:21px;border-radius:12px}.panel h2{font-size:17px}.section-heading{gap:10px}.section-heading .button{font-size:12px;padding:8px 12px}.field-row{grid-template-columns:1fr;gap:0}.profile-details{gap:19px;grid-template-columns:1fr}.course-grid{grid-template-columns:1fr}.course-toolbar{gap:12px}.course-toolbar .search-input{max-width:none;min-width:0}.course-count{white-space:nowrap;font-size:12px}.course-cover{height:100px}.course-card h2{font-size:18px}.course-body{padding:21px}.profile-name{font-size:17px}.avatar{width:50px;height:50px;border-radius:12px}.dialog-inner{padding:23px}.account-dialog .form-actions .button{flex:1}th,td{padding:12px 8px}.table-wrap{margin:0 -7px}.login-help{margin-top:28px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}