:root{--blue:#647fe5;--ink:#1f2a44;--muted:#718096;--bg:#f3f6fd;--card:#fff;--line:#e4e9f2;--green:#19a974;--orange:#e59c36;--danger:#d9534f}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink)}a{text-decoration:none;color:inherit}.btn{border:0;border-radius:8px;padding:10px 18px;cursor:pointer;font-size:14px}.btn-primary{background:var(--blue);color:#fff}.btn-success{background:var(--green);color:#fff}.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn-danger{background:var(--danger);color:#fff}.muted{color:var(--muted)}.container{max-width:1160px;margin:0 auto;padding:0 24px}.public-home{min-height:100vh;display:flex;flex-direction:column;background:#f4f7ff}.hero{flex:1;display:flex;align-items:center;justify-content:center;text-align:center}.hero h1{font-family:Georgia,"Songti SC",serif;font-size:54px;letter-spacing:4px;margin:0 0 30px;color:#10184d}.hero .btn{min-width:160px;background:#f6be38;color:#573900;border-radius:24px}.footer{padding:18px;text-align:center;background:#202020;color:#7d7d7d;font-size:13px}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:430px;background:#fff;border-radius:8px;box-shadow:0 8px 36px rgba(30,55,100,.12);overflow:hidden}.auth-head{height:170px;background:#899fe1 url('/assets/login-head.svg') center/cover no-repeat;display:flex;align-items:flex-end;justify-content:center;padding-bottom:0}.auth-avatar{width:96px;height:96px;margin-bottom:-44px;border-radius:50%;border:5px solid #fff;background:#ddd url('/assets/avatar.svg') center/cover}.auth-form{padding:62px 30px 34px}.auth-form h2{text-align:center;margin:0 0 24px}.field{margin:13px 0}.field label{display:block;font-size:13px;color:#667085;margin-bottom:6px}.field input,.field textarea,.field select{width:100%;padding:11px 12px;border:1px solid #d9dfeb;border-radius:7px;font-size:14px;outline:none}.field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(100,127,229,.12)}.auth-form .btn{width:100%;margin-top:12px}.check{font-size:13px;color:#687386;display:flex;gap:7px;align-items:center;margin:12px 0}.topbar{height:64px;background:#273444;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px}.brand{font-size:21px;font-weight:600;letter-spacing:1px}.admin-layout{display:flex;min-height:calc(100vh - 64px)}.sidebar{width:250px;background:#1f2937;color:#d8e0ee;padding:18px 0}.side-group{padding:9px 22px;color:#95b6f7;font-size:13px}.side-item{display:block;padding:9px 26px;font-size:14px}.side-item:hover,.side-item.active{background:#34475c;color:#fff}.admin-main{flex:1;padding:26px;overflow:auto}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px}.stat strong{display:block;font-size:28px;margin-top:8px}.panel{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:20px}.panel-head{padding:17px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.panel-body{padding:20px}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px}.toolbar input{padding:9px 12px;border:1px solid var(--line);border-radius:7px;min-width:220px}.table{width:100%;border-collapse:collapse;font-size:13px}.table th,.table td{padding:12px 10px;border-bottom:1px solid #edf0f5;text-align:left}.table th{background:#f7f9fc;color:#5d6b82}.tag{display:inline-block;padding:3px 8px;border-radius:12px;font-size:12px;background:#e7efff;color:#4c6bd8}.tag.green{background:#e8f8ef;color:#18864f}.tag.orange{background:#fff3de;color:#a4660c}.actions{display:flex;gap:6px}.actions button{padding:4px 8px;border:0;border-radius:5px;cursor:pointer;background:#edf2ff;color:#4e68c9}.live-shell{min-height:100vh;background:#fff}.live-video{height:300px;background:#dfe8fb url('/assets/meeting-cover.svg') center/cover;display:flex;align-items:center;justify-content:center;color:#fff;position:relative}.live-video .countdown{font-size:30px;background:rgba(20,28,50,.58);padding:14px 20px;border-radius:10px}.live-content{max-width:880px;margin:0 auto;padding:0 18px 100px}.live-tabs{display:flex;border-bottom:1px solid var(--line)}.live-tabs button{flex:1;padding:14px;border:0;background:#fff;color:#7b8799;cursor:pointer}.live-tabs button.active{color:var(--blue);border-bottom:2px solid var(--blue)}.live-card{padding:18px 0}.comment-list{max-height:330px;overflow:auto}.comment{padding:9px 0;border-bottom:1px solid #f0f1f4}.comment b{margin-right:6px}.comment-box{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:12px;display:flex;gap:8px;max-width:880px;margin:0 auto}.comment-box input{flex:1;padding:10px;border:1px solid var(--line);border-radius:7px}@media(max-width:800px){.stats{grid-template-columns:repeat(2,1fr)}.sidebar{width:190px}.admin-main{padding:16px}.table{min-width:760px}.panel-body{overflow:auto}.hero h1{font-size:38px}.auth-card{width:100%;max-width:430px}}