:root{
  --blue:#1a5fb4;--blue-d:#14498c;--blue-l:#eef5ff;--accent:#e8590c;
  --ok:#2f9e44;--warn:#e8590c;--danger:#c92a2a;--gray:#868e96;
  --line:#e3e8ef;--bg:#f5f7fa;--card:#fff;--text:#1f2937;--text2:#5b6675;
  --radius:10px;--shadow:0 1px 3px rgba(16,24,40,.06),0 6px 18px rgba(16,24,40,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--blue);text-decoration:none}
.hide{display:none!important}
.muted{color:var(--gray);font-size:13px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
.nowrap{white-space:nowrap}
.mt6{margin-top:6px}.mt10{margin-top:10px}.mt16{margin-top:16px}.mb10{margin-bottom:10px}
.grow{flex:1}
.center{text-align:center}
.row{display:flex;gap:10px;align-items:center}
.right{margin-left:auto}

/* ---------- 家长端（手机优先） ---------- */
.mobile{max-width:520px;margin:0 auto;background:var(--card);min-height:100vh;display:flex;flex-direction:column}
.m-head{background:var(--blue);color:#fff;padding:14px 16px}
.m-head .org{font-size:17px;font-weight:600}
.m-head .sub{font-size:12px;opacity:.88;margin-top:2px}
.m-body{padding:14px 16px;flex:1}
.m-foot{padding:12px 16px 18px;border-top:1px solid var(--line);background:#fff;position:sticky;bottom:0}
.steps{display:flex;gap:6px;margin-bottom:16px}
.steps i{flex:1;height:3px;border-radius:3px;background:#dfe5ee}
.steps i.on{background:var(--blue)}
.step-tip{font-size:12px;color:var(--gray);margin:-8px 0 14px}
label.f{display:block;margin-bottom:16px}
label.f>span{display:block;font-size:14px;margin-bottom:6px;font-weight:500}
label.f .tip{font-weight:400;color:var(--gray);font-size:12px}
label.f .req{color:var(--danger)}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;outline:none}
input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,95,180,.1)}
input.err,select.err{border-color:var(--danger);background:#fffafa}
.errmsg{color:var(--danger);font-size:12.5px;margin-top:5px;display:none}
.errmsg.show{display:block}
.hint{font-size:12.5px;color:var(--gray);margin-top:5px}
.hint.warn{color:var(--warn)}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{border:1px solid var(--line);background:#fff;padding:9px 14px;border-radius:8px;cursor:pointer}
.seg button.on{border-color:var(--blue);background:var(--blue-l);color:var(--blue);font-weight:600}
.prod{border:1.5px solid var(--line);border-radius:10px;padding:13px;margin-bottom:10px;cursor:pointer;background:#fff}
.prod.on{border-color:var(--blue);background:var(--blue-l)}
.prod .top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.prod .name{font-weight:600}
.prod .price{color:var(--accent);font-weight:700;font-size:17px;white-space:nowrap}
.prod .price small{font-size:12px;font-weight:400;color:var(--gray)}
.prod ul{list-style:none;margin-top:8px;display:grid;gap:3px}
.prod li{font-size:12.5px;color:var(--text2)}
.prod li::before{content:"· ";color:var(--ok)}
.card-line{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:10px;background:#fff}
.card-line.info{background:var(--blue-l);border-color:#cfe0fb}
.kv{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px dashed #eef1f5;font-size:14px}
.kv:last-child{border-bottom:0}
.kid{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:10px}
.kid .top{display:flex;justify-content:space-between;gap:10px;align-items:center}
.kid .nm{font-weight:600}
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:12px}
.b-blue{background:#e7f0fe;color:#1a5fb4}.b-green{background:#e6f7ec;color:#2b8a3e}
.b-orange{background:#fff2e8;color:#d9480f}.b-gray{background:#f1f3f5;color:#5b6675}
.b-red{background:#ffeded;color:#c92a2a}.b-purple{background:#f3ecfd;color:#7048e8}
.btn{border:1px solid var(--line);background:#fff;padding:11px 16px;border-radius:8px;cursor:pointer}
.btn:hover{border-color:#c7d2e0}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.btn.primary:hover{background:var(--blue-d)}
.btn.sm{padding:6px 11px;font-size:13px}
.btn.block{display:block;width:100%;text-align:center}
.btn.ghost{border-color:transparent;color:var(--blue);background:transparent}
.btn.danger{color:var(--danger);border-color:#f1c0c0}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.alert{border-radius:8px;padding:11px 13px;font-size:13.5px;margin-bottom:12px;line-height:1.7}
.alert.info{background:var(--blue-l);border:1px solid #cfe0fb;color:#1c4e8a}
.alert.warn{background:#fff8ec;border:1px solid #ffe0b2;color:#8a5000}
.alert.ok{background:#effaf3;border:1px solid #c6eed7;color:#1f6b3a}
.alert.danger{background:#fff5f5;border:1px solid #ffd6d6;color:#9c2222}
details.consent{border:1px solid var(--line);border-radius:8px;background:#fafbfd;margin-bottom:12px}
details.consent summary{padding:11px 13px;cursor:pointer;font-size:13.5px;font-weight:500;color:var(--blue)}
details.consent .body{padding:0 13px 13px;font-size:12.5px;color:#3d4a5c;line-height:1.8;max-height:260px;overflow:auto;white-space:pre-wrap}
.check{display:flex;gap:9px;align-items:flex-start;margin-bottom:11px;font-size:13.5px;line-height:1.6}
.check input{width:17px;height:17px;flex:none;margin-top:2px;accent-color:var(--blue)}
.footlink{text-align:center;font-size:12.5px;color:var(--gray);padding:14px 0 26px}
.footlink a{margin:0 6px}

/* ---------- 后台 / 代理端（桌面） ---------- */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.top-in{max-width:1320px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px}
.brand .mk{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--blue),#3b82f6);color:#fff;display:grid;place-items:center;font-size:13px}
.nav{display:flex;gap:4px;margin-left:auto;background:var(--bg);padding:3px;border-radius:9px;flex-wrap:wrap}
.nav button{border:0;background:transparent;padding:7px 13px;border-radius:7px;cursor:pointer;color:var(--text2);font-size:13.5px}
.nav button.on{background:#fff;color:var(--blue);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.07)}
.shell{max-width:1320px;margin:0 auto;padding:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:16px}
.card h3{font-size:15px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.card h3 .sub{font-size:12.5px;color:var(--gray);font-weight:400}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}
.kpi .k{font-size:12.5px;color:var(--text2)}
.kpi .v{font-size:23px;font-weight:700;letter-spacing:-.4px;margin-top:4px}
.kpi .v small{font-size:13px;font-weight:500;color:var(--gray)}
.kpi .d{font-size:12px;color:var(--gray);margin-top:2px}
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-weight:600;color:var(--text2);font-size:12.5px;padding:9px 10px;border-bottom:1px solid var(--line);background:#fafbfd;white-space:nowrap}
td{padding:10px;border-bottom:1px solid #f0f3f7;vertical-align:middle}
tr:hover td{background:#fafbfd}
.filters{display:flex;gap:9px;flex-wrap:wrap;align-items:flex-end;margin-bottom:14px}
.filters .fi{display:flex;flex-direction:column;gap:4px}
.filters .fi span{font-size:12.5px;color:var(--text2)}
.filters select,.filters input{padding:8px 10px;font-size:13.5px;min-width:120px}
.filters .fi.kw input{min-width:220px}
.mask{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:80;padding:18px}
.modal{background:#fff;border-radius:12px;max-width:780px;width:100%;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.modal-h{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.modal-h b{font-size:15.5px}
.modal-h .x{margin-left:auto;border:0;background:transparent;font-size:22px;cursor:pointer;color:var(--gray);line-height:1}
.modal-b{padding:16px 18px;overflow:auto}
.modal-f{padding:12px 18px;border-top:1px solid var(--line);display:flex;gap:9px;justify-content:flex-end;background:#fafbfd;border-radius:0 0 12px 12px}
#toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%);z-index:120;display:grid;gap:8px;justify-items:center;pointer-events:none}
.toast{background:#1f2937;color:#fff;padding:10px 16px;border-radius:9px;font-size:13.5px;box-shadow:0 8px 24px rgba(0,0,0,.24)}
.toast.ok{background:#1f7a3f}.toast.err{background:#b02020}
.login{max-width:400px;margin:54px auto}
.login h2{font-size:19px;margin-bottom:6px}
.bar{height:8px;border-radius:5px;background:#eef1f5;overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),#4d94f5)}
.barlist{display:grid;gap:9px}
.barlist .it{display:grid;grid-template-columns:84px 1fr 76px;gap:10px;align-items:center;font-size:13px;color:var(--text2)}
.copy{display:flex;gap:8px;align-items:center;background:#f7f9fc;border:1px dashed #c9d5e5;border-radius:8px;padding:9px 11px}
.copy .u{flex:1;font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#2b4a75}
.pricegrid input{width:110px;padding:7px 9px;text-align:right}

/* 高清推广海报 */
.promotion-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.promotion-controls h2{font-size:34px;line-height:1.35;margin:12px 0 18px;color:#123d36}
.promotion-eyebrow{font-size:12px;letter-spacing:2px;color:#58726a}
.promotion-preview{background:#e8ece7;border-radius:16px;padding:16px;text-align:center;min-height:220px}
.promotion-preview img{width:100%;height:auto;display:block;border-radius:8px;box-shadow:0 8px 24px #18392a1c;margin-top:12px}
.promotion-preview img[hidden]{display:none}
.promotion-preview [role=status]{font-size:12px;color:#52675f}
@media(max-width:640px){.promotion-layout{grid-template-columns:1fr;gap:20px}.promotion-controls h2{font-size:27px}.promotion-preview{max-width:360px;margin:auto}.nav{flex-wrap:wrap}}
@media(max-width:640px){.promotion-preview{order:-1;max-width:240px;padding:12px}.promotion-controls h2{display:none}.promotion-controls>p.muted{margin:10px 0}.promotion-layout{gap:18px}}