:root{
  --lf-bg:#f4f6f5;
  --lf-surface:#ffffff;
  --lf-sidebar:#17332f;
  --lf-sidebar-hover:#21463f;
  --lf-text:#172522;
  --lf-muted:#64736f;
  --lf-border:#dde6e3;
  --lf-primary:#0d9488;
  --lf-primary-hover:#0f766e;
  --lf-primary-soft:#e7f7f4;
  --lf-primary-foreground:#ffffff;
  --lf-success:#147a54;
  --lf-success-soft:#e8f6ef;
  --lf-warning:#9a6511;
  --lf-warning-soft:#fff4d6;
  --lf-danger:#b43a4d;
  --lf-danger-soft:#fcecef;
  --lf-info:#236b78;
  --lf-info-soft:#e7f4f6;
}
.lfb2b-app,.lfb2b-login{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;color:var(--lf-text);font-size:16px;line-height:1.65}
.lfb2b-app{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100vh;background:var(--lf-bg)}
.lfb2b-sidebar{background:var(--lf-sidebar);color:#fff;padding:20px 14px;display:flex;flex-direction:column;gap:22px}
.lfb2b-brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:19px;font-weight:600}
.lfb2b-brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--lf-primary);color:#fff;font-weight:700}
.lfb2b-nav{display:grid;gap:6px}
.lfb2b-nav a{display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;border-radius:12px;color:#d8e7e2;text-decoration:none}
.lfb2b-nav a:hover{background:var(--lf-sidebar-hover);color:#fff}
.lfb2b-nav a[aria-current=page]{background:var(--lf-primary);color:#fff}
.lfb2b-account-card{margin-top:auto;border-top:1px solid rgba(255,255,255,.14);padding-top:16px;display:grid;gap:4px;color:#d8e7e2}
.lfb2b-account-card strong{color:#fff;font-size:15px}
.lfb2b-account-card span,.lfb2b-account-card a{font-size:14px;color:#d8e7e2}
.lfb2b-main{min-width:0;padding:0 28px 32px}
.lfb2b-topbar{height:70px;margin:0 -28px 24px;padding:0 28px;background:var(--lf-surface);border-bottom:1px solid var(--lf-border);display:flex;align-items:center;justify-content:space-between;gap:16px}
.lfb2b-topbar strong{font-size:20px;font-weight:600;display:block}
.lfb2b-topbar span{font-size:14px;color:var(--lf-muted)}
.lfb2b-health{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--lf-success)}
.lfb2b-health>span{width:9px;height:9px;border-radius:99px;background:var(--lf-success)}
.lfb2b-health.is-warning{color:var(--lf-warning)}.lfb2b-health.is-warning>span{background:var(--lf-warning)}
.lfb2b-nav-toggle{display:none}
.lfb2b-page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}
.lfb2b-page-header h1{font-size:28px;line-height:1.25;font-weight:600;margin:0}
.lfb2b-page-header p{margin:6px 0 0;color:var(--lf-muted)}
.lfb2b-surface{background:var(--lf-surface);border:1px solid var(--lf-border);border-radius:14px;padding:20px;margin-bottom:18px}
.lfb2b-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.lfb2b-section-head h2,.lfb2b-surface h2{font-size:18px;margin:0 0 12px;font-weight:600}
.lfb2b-section-head h2{margin:0}
.lfb2b-btn{min-height:44px;border-radius:12px;border:1px solid transparent;padding:0 16px;font-size:15px;font-weight:500;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background .16s ease,border-color .16s ease,color .16s ease,opacity .16s ease}
.lfb2b-btn-primary{background:var(--lf-primary);color:#fff}.lfb2b-btn-primary:hover{background:var(--lf-primary-hover);color:#fff}
.lfb2b-btn-secondary{background:#fff;color:var(--lf-primary);border-color:#b7ded8}.lfb2b-btn-secondary:hover{background:var(--lf-primary-soft)}
.lfb2b-btn-danger{background:var(--lf-danger-soft);color:var(--lf-danger);border-color:#f3c8d0}
.lfb2b-btn[disabled],.lfb2b-btn.is-loading{opacity:.55;cursor:not-allowed}
.lfb2b-btn:focus-visible,.lfb2b-nav a:focus-visible,input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid rgba(13,148,136,.24);outline-offset:2px}
.lfb2b-alert{border-radius:14px;padding:14px 16px;margin:0 0 18px;display:grid;gap:3px;border:1px solid var(--lf-border)}
.lfb2b-alert strong{font-weight:600}.lfb2b-alert span{color:var(--lf-muted)}
.lfb2b-alert-guide{background:var(--lf-warning-soft);border-color:#f0d38b;color:var(--lf-warning)}
.lfb2b-alert-warning{background:var(--lf-warning-soft);border-color:#f0d38b}
.lfb2b-alert-error{background:var(--lf-danger-soft);border-color:#f3c8d0}
.lfb2b-kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px}
.lfb2b-kpi{background:#fff;border:1px solid var(--lf-border);border-radius:14px;padding:18px}
.lfb2b-kpi span{font-size:29px;font-weight:600;color:var(--lf-primary);display:block;line-height:1.2}.lfb2b-kpi strong{font-size:15px;color:var(--lf-muted);font-weight:500}
.lfb2b-kpi.is-danger span{color:var(--lf-danger)}
.lfb2b-grid-2,.lfb2b-detail-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);gap:18px}
.lfb2b-table-wrap{overflow:auto}.lfb2b-table{width:100%;border-collapse:collapse;min-width:760px}
.lfb2b-table th{text-align:left;color:var(--lf-muted);font-weight:500;background:#f8faf9}.lfb2b-table th,.lfb2b-table td{padding:13px 12px;border-bottom:1px solid var(--lf-border);vertical-align:top}
.lfb2b-table td span{display:block;color:var(--lf-muted);font-size:14px}
.lfb2b-row-action{border:0;background:transparent;color:var(--lf-primary);font-weight:500;cursor:pointer;text-decoration:none;padding:0}
.lfb2b-badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 9px;font-size:13px;font-weight:500;background:var(--lf-info-soft);color:var(--lf-info)}
.lfb2b-badge:before{content:"";width:6px;height:6px;border-radius:99px;background:currentColor}
.lfb2b-badge-new,.lfb2b-badge-pending,.lfb2b-badge-processing{background:var(--lf-warning-soft);color:var(--lf-warning)}
.lfb2b-badge-sent,.lfb2b-badge-active{background:var(--lf-success-soft);color:var(--lf-success)}
.lfb2b-badge-failed,.lfb2b-badge-error,.lfb2b-badge-expired{background:var(--lf-danger-soft);color:var(--lf-danger)}
.lfb2b-empty{text-align:center;padding:34px 18px;border:1px dashed var(--lf-border);border-radius:14px;background:#fbfcfc}.lfb2b-empty-icon{margin:0 auto 10px;width:42px;height:42px;border-radius:12px;background:var(--lf-primary-soft);color:var(--lf-primary);display:grid;place-items:center;font-size:24px}
.lfb2b-empty h2{font-size:18px;margin:0 0 6px}.lfb2b-empty p{color:var(--lf-muted);margin:0 0 14px}
.lfb2b-filterbar,.lfb2b-form-grid{display:grid;grid-template-columns:repeat(3,minmax(160px,1fr));gap:14px;margin-bottom:16px;align-items:end}
.lfb2b-form{display:grid;gap:14px}.lfb2b-form label,.lfb2b-filterbar label{display:grid;gap:6px;font-weight:500}
.lfb2b-form input,.lfb2b-form select,.lfb2b-form textarea,.lfb2b-filterbar input,.lfb2b-filterbar select{width:100%;min-height:44px;box-sizing:border-box;border:1px solid #c9d6d2;border-radius:12px;background:#fff;color:var(--lf-text);font-size:16px;padding:9px 12px}
.lfb2b-form textarea{min-height:120px;resize:vertical}.lfb2b-help{font-size:14px;color:var(--lf-muted);margin:0}
.lfb2b-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.lfb2b-codebox{min-height:90px;background:#10201d;color:#dff6ef;border-radius:12px;padding:12px;white-space:pre-wrap;overflow:auto}
.lfb2b-share-banner{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--lf-warning-soft);border:1px solid #f0d38b;border-radius:14px;padding:16px;margin-bottom:18px}.lfb2b-share-banner div{display:grid;gap:4px}.lfb2b-share-banner code{font-size:15px;color:var(--lf-text);word-break:break-all}.lfb2b-share-banner span{color:var(--lf-warning)}
.lfb2b-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:0;margin:0 0 18px;list-style:none}.lfb2b-steps li{border:1px solid var(--lf-border);border-radius:12px;padding:12px;background:#fff}.lfb2b-steps .is-current{border-color:var(--lf-primary);background:var(--lf-primary-soft)}
.lfb2b-token-list{display:flex;flex-wrap:wrap;gap:8px}.lfb2b-token-list button{border:1px solid var(--lf-border);border-radius:999px;background:#fff;padding:7px 10px;cursor:pointer}
.lfb2b-detail-list{display:grid;gap:12px;margin:0}.lfb2b-detail-list div{display:grid;grid-template-columns:120px 1fr;gap:12px}.lfb2b-detail-list dt{color:var(--lf-muted)}.lfb2b-detail-list dd{margin:0}
.lfb2b-status-list,.lfb2b-follow-list{display:grid;gap:12px;padding:0;margin:0;list-style:none}.lfb2b-status-list li,.lfb2b-follow-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--lf-border);padding-bottom:12px}
.lfb2b-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.lfb2b-mini-card{border:1px solid var(--lf-border);border-radius:14px;padding:16px}.lfb2b-mini-card h3{font-size:17px;margin:10px 0 6px}.lfb2b-mini-card p{color:var(--lf-muted)}
.lfb2b-tabs{display:flex;gap:8px;margin-bottom:14px}.lfb2b-tabs button{border:1px solid var(--lf-border);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer}.lfb2b-tabs .is-active{background:var(--lf-primary);border-color:var(--lf-primary);color:#fff}
.lfb2b-mobile-list{display:none}.lfb2b-lead-card{background:#fff;border:1px solid var(--lf-border);border-radius:14px;padding:14px;margin-bottom:10px}.lfb2b-lead-card div{display:flex;justify-content:space-between;gap:10px}.lfb2b-lead-card p{color:var(--lf-muted);margin:8px 0}
.lfb2b-login{min-height:100vh;background:var(--lf-bg);display:grid;place-items:center;padding:24px}.lfb2b-login-card{width:min(440px,100%);background:#fff;border:1px solid var(--lf-border);border-radius:18px;padding:30px}.lfb2b-login-card h1{font-size:27px;margin:18px 0 8px}.lfb2b-login-card p{color:var(--lf-muted)}.lfb2b-login-card label{display:block;margin:12px 0 6px}.lfb2b-login-card input[type=text],.lfb2b-login-card input[type=password]{width:100%;min-height:46px;border:1px solid #c9d6d2;border-radius:12px;padding:9px 12px;font-size:16px}.lfb2b-login-card input[type=submit]{width:100%;min-height:46px;border:0;border-radius:12px;background:var(--lf-primary);color:#fff;font-size:16px;font-weight:600;cursor:pointer}.lfb2b-forgot{display:inline-block;margin-top:12px;color:var(--lf-primary)}
.lfb2b-toast{position:fixed;right:22px;bottom:22px;background:#10201d;color:#fff;border-radius:12px;padding:12px 16px;box-shadow:0 10px 24px rgba(0,0,0,.16);z-index:99}
.lfb2b-modal{position:fixed;inset:0;background:rgba(23,37,34,.36);display:grid;place-items:center;padding:20px;z-index:100}.lfb2b-modal-dialog{background:#fff;border-radius:16px;max-width:420px;width:100%;padding:22px;box-shadow:0 18px 44px rgba(0,0,0,.18)}
.lfb2b-toast[hidden],.lfb2b-modal[hidden]{display:none}
@media (prefers-reduced-motion:reduce){.lfb2b-btn{transition:none}}
@media (max-width:900px){.lfb2b-app{grid-template-columns:1fr}.lfb2b-sidebar{display:none}.lfb2b-app.is-nav-open .lfb2b-sidebar{display:flex;position:fixed;inset:0 auto 0 0;width:260px;z-index:80}.lfb2b-nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--lf-border);border-radius:12px;background:#fff}.lfb2b-main{padding:0 18px 24px}.lfb2b-topbar{margin:0 -18px 20px;padding:0 18px}.lfb2b-grid-2,.lfb2b-detail-grid{grid-template-columns:1fr}.lfb2b-kpi-grid,.lfb2b-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lfb2b-filterbar,.lfb2b-form-grid{grid-template-columns:1fr 1fr}.lfb2b-page-header{flex-direction:column}.lfb2b-share-banner{align-items:flex-start;flex-direction:column}}
@media (max-width:560px){.lfb2b-topbar{height:auto;min-height:68px}.lfb2b-topbar>div:first-of-type span,.lfb2b-health{display:none}.lfb2b-kpi-grid,.lfb2b-filterbar,.lfb2b-form-grid,.lfb2b-steps,.lfb2b-card-grid{grid-template-columns:1fr}.lfb2b-table-wrap{display:none}.lfb2b-mobile-list{display:block}.lfb2b-detail-list div{grid-template-columns:1fr}.lfb2b-page-header h1{font-size:24px}.lfb2b-surface{padding:16px}.lfb2b-actions .lfb2b-btn{width:100%}}