:root{--app-paper:#f6f5f0;--app-ink:#10100e;--app-blue:#244fa5;--app-mint:#73bec0;--app-pink:#d8608c;--app-yellow:#f2e77d;--app-line:rgba(16,16,14,.18);--app-muted:rgba(16,16,14,.62)}*{box-sizing:border-box}html{min-height:100%;background:var(--app-paper)}body{min-width:320px;min-height:100vh;margin:0;background:linear-gradient(rgba(16,16,14,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(16,16,14,.045) 1px,transparent 1px),var(--app-paper);background-size:42px 42px;color:var(--app-ink);font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",sans-serif}.app-nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px clamp(18px,4vw,64px);border-bottom:1px solid var(--app-line);background:rgba(246,245,240,.88);backdrop-filter:blur(16px)}.app-brand{display:inline-flex;align-items:center;gap:9px;color:var(--app-ink);font-weight:900;letter-spacing:-.06em;text-decoration:none;white-space:nowrap}.app-brand img{width:38px;height:38px;object-fit:cover;border:1px solid var(--app-line);background:#fff}.app-nav-links,.app-account{display:flex;align-items:center;gap:14px}.app-nav-links a,.app-account a{color:var(--app-muted);font:11px "SFMono-Regular",Consolas,monospace;text-decoration:none}.app-nav-links a:hover,.app-account a:hover{color:var(--app-blue)}.app-account button{border:0;border-bottom:1px solid var(--app-line);background:transparent;padding:0 0 3px;color:var(--app-muted);font:11px "SFMono-Regular",Consolas,monospace;cursor:pointer}.app-main{width:min(1120px,90vw);margin:0 auto;padding:clamp(54px,8vw,106px) 0}.auth-layout{display:grid;grid-template-columns:minmax(250px,.9fr) minmax(0,1.1fr);gap:clamp(28px,7vw,108px);align-items:start}.app-kicker{margin:0 0 17px;color:var(--app-blue);font:10px "SFMono-Regular",Consolas,monospace;letter-spacing:.12em}.app-title{max-width:10ch;margin:0;font-size:clamp(42px,5.4vw,76px);line-height:1.06;letter-spacing:-.08em}.app-lead{max-width:34ch;margin:20px 0 0;color:var(--app-muted);font-size:15px;line-height:1.8}.app-panel{border:1px solid var(--app-ink);background:rgba(255,255,255,.56);box-shadow:10px 12px 0 rgba(36,79,165,.13);padding:clamp(22px,3vw,42px)}.app-panel h2{margin:0 0 22px;font-size:28px;letter-spacing:-.06em}.form-stack{display:grid;gap:17px}.field{display:grid;gap:7px}.field label{font:10px "SFMono-Regular",Consolas,monospace;letter-spacing:.07em}.field input,.field select,.permissions-input{width:100%;border:1px solid var(--app-line);border-radius:0;background:#fff;padding:13px 14px;color:var(--app-ink);font:15px inherit;outline:none}.field input:focus,.field select:focus,.permissions-input:focus{border-color:var(--app-blue);box-shadow:3px 3px 0 rgba(36,79,165,.15)}.form-note,.system-note{margin:0;color:var(--app-muted);font-size:12px;line-height:1.7}.form-message{min-height:20px;margin:0;color:var(--app-blue);font-size:12px}.button-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.app-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;border:1px solid var(--app-ink);background:var(--app-blue);color:#fff;padding:11px 16px;font-weight:800;text-decoration:none;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.app-button:hover{transform:translateY(-2px);box-shadow:4px 5px 0 rgba(36,79,165,.25)}.app-button:active{transform:scale(.98)}.app-button.secondary{background:transparent;color:var(--app-ink)}.text-link{color:var(--app-ink);font-size:13px;text-underline-offset:4px}.status-card{display:grid;gap:14px}.status-chip{display:inline-flex;align-items:center;width:max-content;border:1px solid var(--app-ink);padding:6px 9px;background:#fff;font:10px "SFMono-Regular",Consolas,monospace;letter-spacing:.07em}.status-pending{background:var(--app-yellow)}.status-active{background:var(--app-mint)}.status-disabled{background:#dfdeda}.status-rejected{background:var(--app-pink)}.status-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border:1px solid var(--app-line);background:var(--app-line)}.status-grid div{background:var(--app-paper);padding:13px}.status-grid span{display:block;color:var(--app-muted);font:10px "SFMono-Regular",Consolas,monospace}.status-grid strong{display:block;margin-top:5px;font-size:14px;overflow-wrap:anywhere}.dashboard-header{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:32px}.dashboard-header .app-title{max-width:none}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(240px,.9fr);gap:20px}.info-panel,.admin-panel{border-top:1px solid var(--app-ink);padding-top:16px}.info-panel h2,.admin-panel h2{margin:0 0 16px;font-size:22px;letter-spacing:-.05em}.permission-list{display:flex;flex-wrap:wrap;gap:8px}.permission-tag{border:1px solid var(--app-line);background:#fff;padding:6px 8px;font:10px "SFMono-Regular",Consolas,monospace}.table-wrap{overflow:auto;border:1px solid var(--app-line);background:#fff}.admin-table{width:100%;min-width:760px;border-collapse:collapse;font-size:13px}.admin-table th,.admin-table td{padding:13px 12px;border-bottom:1px solid var(--app-line);text-align:left;vertical-align:top}.admin-table th{background:rgba(36,79,165,.06);font:10px "SFMono-Regular",Consolas,monospace;letter-spacing:.07em}.admin-table tr:last-child td{border-bottom:0}.table-actions{display:flex;gap:6px;flex-wrap:wrap}.table-actions button,.permission-save{border:1px solid var(--app-line);background:var(--app-paper);padding:6px 8px;color:var(--app-ink);font-size:11px;cursor:pointer}.table-actions button:hover,.permission-save:hover{border-color:var(--app-blue);background:rgba(36,79,165,.08)}.role-select{border:1px solid var(--app-line);background:#fff;padding:6px;font:11px inherit}.permission-editor{display:grid;grid-template-columns:minmax(150px,.7fr) minmax(160px,1fr) auto;gap:10px;align-items:center;border-bottom:1px solid var(--app-line);padding:12px 0}.permission-editor:last-child{border-bottom:0}.legal-copy{max-width:720px;font-size:15px;line-height:1.9}.legal-copy h2{margin:38px 0 12px;font-size:24px;letter-spacing:-.05em}.legal-copy p{margin:0 0 15px}.empty-state{border:1px dashed var(--app-line);padding:22px;color:var(--app-muted);font-size:13px}.footer-note{margin-top:42px;color:var(--app-muted);font:10px/1.7 "SFMono-Regular",Consolas,monospace}@media(max-width:760px){.app-nav{min-height:68px;padding:10px 16px}.app-nav-links{display:none}.app-account{gap:10px}.app-main{width:min(100% - 32px,640px);padding:48px 0 70px}.auth-layout,.dashboard-grid{grid-template-columns:1fr;gap:32px}.app-title{font-size:clamp(40px,13vw,64px)}.app-panel{padding:22px 18px}.dashboard-header{display:grid;align-items:start}.status-grid{grid-template-columns:1fr}.permission-editor{grid-template-columns:1fr}.app-brand img{width:34px;height:34px}}

/* Account routes use the same readable Chinese sans-serif typography system. */
:root{--yulang-auth-sans:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei UI","Microsoft YaHei","PingFang SC",Arial,sans-serif}
body,body *{font-family:var(--yulang-auth-sans)!important}
body{font-weight:400;letter-spacing:0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.app-title{font-weight:800!important;line-height:1.13!important;letter-spacing:-.04em!important;text-wrap:balance}
.app-panel h2,.info-panel h2,.admin-panel h2,.legal-copy h2{font-weight:800!important;line-height:1.2!important;letter-spacing:-.035em!important}
.app-lead,.legal-copy,.system-note,.form-note{font-size:15px!important;line-height:1.8!important;letter-spacing:.01em!important}
.app-kicker,.field label,.app-nav-links a,.app-account,.status-chip,.permission-tag,.admin-table th,.footer-note{font-size:11px!important;line-height:1.55!important;letter-spacing:.045em!important;font-weight:600!important}
.field input,.field select,.permissions-input,.admin-table,.table-actions button,.permission-save,.role-select{letter-spacing:0!important}
.app-brand,.app-button{font-weight:800!important;letter-spacing:-.02em!important}
@media(max-width:760px){.app-title{line-height:1.16!important;letter-spacing:-.03em!important}.app-lead,.legal-copy{font-size:14px!important;line-height:1.78!important}}

/* Class centre: 与浪编辑网格的登录后延展 */
.class-main{max-width:1440px;margin:0 auto;padding:36px clamp(20px,4vw,72px) 72px}.class-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;padding:0 0 28px;border-bottom:1px solid var(--app-line)}.class-header .app-title{max-width:680px}.class-grid{display:grid;grid-template-columns:minmax(250px,.72fr) minmax(0,2fr);min-height:620px;border-bottom:1px solid var(--app-line)}.class-sidebar{border-right:1px solid var(--app-line);padding:28px 22px 28px 0}.class-sidebar-head{display:flex;align-items:baseline;justify-content:space-between;padding:0 0 20px;border-bottom:1px solid var(--app-line)}.class-sidebar-head h2{margin:0;font-size:18px;letter-spacing:-.04em}.class-sidebar-head strong{font-family:monospace!important;font-size:30px;color:var(--app-blue)}.class-sidebar-note{margin:16px 0 22px;color:var(--app-muted);font-size:13px;line-height:1.7}.class-nav-item{width:100%;display:grid;gap:5px;text-align:left;background:none;border:0;border-bottom:1px solid var(--app-line);padding:18px 14px;color:var(--app-ink);cursor:pointer;transition:background .22s ease,padding-left .22s ease}.class-nav-item:hover,.class-nav-item:focus-visible,.class-nav-item.is-active{background:var(--app-blue);color:#fff;padding-left:20px;outline:none}.class-nav-item span,.class-nav-item em{font-family:monospace!important;font-size:11px;font-style:normal;letter-spacing:.06em}.class-nav-item strong{font-size:15px;letter-spacing:-.03em;line-height:1.35}.class-nav-item em{color:var(--app-mint)}.class-nav-item em.pending{color:var(--app-yellow)}.class-detail{position:relative;padding:48px clamp(26px,5vw,86px);overflow:hidden}.class-detail::before{content:"";position:absolute;right:-10%;top:-19%;width:45%;aspect-ratio:1;border:1px solid rgba(36,79,165,.24);border-radius:50%;box-shadow:0 0 0 54px rgba(115,190,192,.12),0 0 0 109px rgba(242,231,125,.11);pointer-events:none}.class-detail>*{position:relative}.class-detail-meta{display:flex;gap:16px;color:var(--app-muted);font-family:monospace!important;font-size:12px;padding-bottom:22px}.class-detail h1{margin:0;max-width:680px;font-size:clamp(40px,5.6vw,84px);line-height:.98;letter-spacing:-.075em}.class-detail>p{max-width:430px;margin:30px 0 44px;color:var(--app-muted);line-height:1.8}.class-course-rail{display:grid;grid-template-columns:repeat(3,1fr);max-width:760px;border-top:1px solid var(--app-ink);border-bottom:1px solid var(--app-ink)}.class-course-rail div{min-height:104px;padding:16px 18px 15px 0;display:grid;align-content:space-between;gap:14px;border-right:1px solid var(--app-line)}.class-course-rail div+div{padding-left:18px}.class-course-rail div:last-child{border-right:0}.class-course-rail b{font-family:monospace!important;font-size:13px;color:var(--app-blue)}.class-course-rail span{font-size:14px;font-weight:700;line-height:1.35}.class-detail-action{margin-top:34px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}.class-detail-action small{max-width:280px;color:var(--app-muted);line-height:1.6}.class-joined{display:inline-flex;align-items:center;min-height:46px;padding:0 20px;background:var(--app-mint);color:var(--app-ink);font-size:14px;font-weight:800}.app-button[disabled]{opacity:.58;cursor:default;transform:none}.admin-class-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--app-line);background:var(--app-line);margin-top:18px}.admin-class-card{display:grid;align-content:space-between;min-height:170px;padding:21px;background:var(--app-paper)}.admin-class-card p,.admin-class-card span{margin:0;font-family:monospace!important;font-size:11px;color:var(--app-muted)}.admin-class-card h2{margin:22px 0;font-size:20px;letter-spacing:-.045em}.admin-class-card strong{color:var(--app-blue);font-size:13px}.empty-state{text-align:center;color:var(--app-muted);padding:40px!important}@media(max-width:760px){.class-main{padding-top:22px}.class-header{align-items:flex-start;flex-direction:column;padding-bottom:20px}.class-grid{grid-template-columns:1fr}.class-sidebar{border-right:0;border-bottom:1px solid var(--app-line);padding:22px 0}.class-sidebar-note{margin-bottom:16px}.class-detail{padding:35px 0}.class-detail h1{font-size:clamp(42px,13vw,64px)}.class-course-rail{grid-template-columns:1fr}.class-course-rail div,.class-course-rail div+div{min-height:auto;padding:16px 0;border-right:0;border-bottom:1px solid var(--app-line)}.class-course-rail div:last-child{border-bottom:0}.admin-class-grid{grid-template-columns:1fr}.class-detail::before{width:65%;right:-25%;top:-9%}}@media(prefers-reduced-motion:reduce){.class-nav-item{transition:none}}.app-icp-footer{padding:22px 16px 30px;text-align:center;color:var(--app-muted);font-size:12px}.app-icp-footer a{color:inherit;text-decoration:none;border-bottom:1px solid transparent;padding-bottom:2px}.app-icp-footer a:hover,.app-icp-footer a:focus-visible{color:var(--app-blue);border-bottom-color:currentColor;outline:none}

/* Mobile touch target fixes */
.admin-entry{margin-top:28px;padding-top:22px;border-top:1px solid var(--app-ink)}.admin-entry-label{margin:0 0 14px;color:var(--app-blue);font:10px "SFMono-Regular",Consolas,monospace;letter-spacing:.1em}.admin-entry-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:15px}.admin-entry-links a{color:var(--app-ink);font-size:12px;text-underline-offset:4px}.admin-entry-links a:hover,.admin-entry-links a:focus-visible{color:var(--app-blue)}[hidden]{display:none!important}
@media(max-width:760px){.app-account a,.text-link{display:inline-flex;align-items:center;min-height:44px;padding:8px 4px}.app-account{margin-right:-4px}}