:root{--c1:#1e3c72;--c2:#2a6fd6;--accent:#2a6fd6;--soft:#e8f0ff;--ink:#1f2933;--mute:#6b7785;--line:#e3e8ee;--bg:#f4f6f9;--danger:#d33a3a;--ok:#1a9d6b}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}
button,input,textarea,select{font:inherit;color:inherit}
input[type=text],input[type=password],textarea,select{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;font-size:16px}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}
textarea{resize:vertical;min-height:90px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:15px;white-space:nowrap}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.08);color:#fff}
.btn.danger{color:var(--danger)}
.btn.danger:hover{border-color:var(--danger);color:var(--danger)}
.btn.sm{padding:5px 11px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.toast{position:fixed;left:50%;top:22px;transform:translateX(-50%);background:#1f2933;color:#fff;padding:10px 20px;border-radius:10px;z-index:99;max-width:90vw;font-size:15px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.toast.err{background:var(--danger)}

/* ========== 后台 ========== */
.wrap{max-width:1080px;margin:0 auto;padding:20px 16px 60px}
.topbar{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.topbar h1{font-size:21px;margin:0;flex:1}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}
.login{max-width:360px;margin:14vh auto;text-align:center}
.login h1{font-size:22px}
.login .card{text-align:left}
.srow{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.srow:last-child{border-bottom:0}
.srow .t{flex:1;min-width:200px}
.srow .t b{display:block;font-size:17px;cursor:pointer}
.srow .t b:hover{color:var(--accent)}
.srow .t span{font-size:13px;color:var(--mute)}
.pill{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;background:#eef1f5;color:var(--mute)}
.pill.open{background:#dcf5ea;color:var(--ok)}
.pill.closed{background:#fde8e8;color:var(--danger)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;overflow-x:auto}
.tab{padding:10px 18px;border:0;background:none;cursor:pointer;border-bottom:3px solid transparent;color:var(--mute);font-size:16px;white-space:nowrap}
.tab.on{color:var(--accent);border-color:var(--accent);font-weight:600}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;color:var(--mute);margin-bottom:5px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:640px){.row2{grid-template-columns:1fr}}
.q{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px;background:#fbfcfd}
.q .qh{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.q .no{font-weight:700;color:var(--accent)}
.q .ty{font-size:12px;padding:2px 9px;border-radius:99px;background:var(--soft);color:var(--accent)}
.q .sp{flex:1}
.addbar{display:flex;gap:8px;flex-wrap:wrap}
.hint{font-size:13px;color:var(--mute)}
.swatches{display:flex;gap:10px;flex-wrap:wrap}
.sw{width:74px;cursor:pointer;text-align:center;font-size:13px}
.sw i{display:block;height:38px;border-radius:10px;border:3px solid transparent;margin-bottom:4px}
.sw.on i{border-color:#111}
.postergrid{display:grid;grid-template-columns:minmax(260px,1fr) 340px;gap:20px;align-items:start}
@media(max-width:820px){.postergrid{grid-template-columns:1fr}}
.postergrid canvas{width:100%;max-width:340px;height:auto;border-radius:14px;box-shadow:0 8px 28px rgba(0,0,0,.18);display:block}
.linkbox{display:flex;gap:8px}
.linkbox input{flex:1}
.statq{margin-bottom:22px}
.statq h4{margin:0 0 8px;font-size:16px}
.bar{display:flex;align-items:center;gap:10px;margin:5px 0;font-size:14px}
.bar .lab{width:38%;min-width:90px;overflow:hidden;text-overflow:ellipsis}
.bar .trk{flex:1;background:#eef1f5;border-radius:6px;height:18px;overflow:hidden}
.bar .trk i{display:block;height:100%;background:var(--accent);border-radius:6px}
.bar .num{width:70px;text-align:right;color:var(--mute)}
.tblwrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f7f9fb;white-space:nowrap}
.texts{max-height:160px;overflow:auto;background:#f7f9fb;border-radius:8px;padding:8px 12px;font-size:14px}
.texts div{padding:3px 0;border-bottom:1px dashed var(--line)}

/* ========== 学员填写页 ========== */
.sv-head{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;padding:34px 20px 54px}
.sv-head .in{max-width:640px;margin:0 auto}
.sv-head .org{font-size:14px;opacity:.9;margin-bottom:6px}
.sv-head h1{margin:0 0 8px;font-size:25px;line-height:1.35}
.sv-head p{margin:0;opacity:.92;white-space:pre-wrap;font-size:15px}
.sv-body{max-width:640px;margin:-34px auto 0;padding:0 14px 50px}
.sv-card{background:#fff;border-radius:16px;padding:18px;margin-bottom:14px;box-shadow:0 4px 18px rgba(20,30,50,.07)}
.sv-card.err{outline:2px solid var(--danger)}
.sv-card h3{margin:0 0 12px;font-size:17px;line-height:1.5}
.sv-card h3 .req{color:var(--danger);margin-left:3px}
.sv-card h3 .tp{font-size:12px;color:var(--mute);font-weight:400;margin-left:6px}
.opt{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;margin-bottom:9px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.opt input{margin-top:5px;accent-color:var(--accent);width:18px;height:18px;flex:none}
.opt.on{border-color:var(--accent);background:var(--soft)}
.rate{display:flex;gap:7px;flex-wrap:wrap}
.rate button{flex:1;min-width:40px;height:44px;border:1.5px solid var(--line);border-radius:10px;background:#fff;font-size:16px;cursor:pointer}
.rate button.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}
.rate-lab{display:flex;justify-content:space-between;font-size:12px;color:var(--mute);margin-top:5px}
.submit{width:100%;padding:14px;font-size:17px;border-radius:12px;border:0;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}
.submit:disabled{opacity:.6}
.msg{text-align:center;padding:60px 24px}
.msg .big{font-size:54px}
.msg h2{margin:10px 0 6px}
.msg p{color:var(--mute)}
.ferr{color:var(--danger);font-size:14px;margin-top:6px}