:root{
  --bg:#f6f7fb;
  --surface:#ffffff;
  --surface-2:#f9fafc;
  --text:#141821;
  --muted:#667085;
  --line:#e7eaf0;
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-soft:#eaf1ff;
  --success:#16a34a;
  --warning:#f59e0b;
  --danger:#ef4444;
  --radius:18px;
  --shadow:0 18px 50px rgba(18,31,56,.08);
  --shadow-sm:0 10px 26px rgba(18,31,56,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0}
.hidden{display:none!important}.mobile-only{display:none!important}.desktop-only{display:inline-flex!important}
.auth-screen{min-height:100vh;display:grid;grid-template-columns:minmax(360px,520px) 1fr;background:radial-gradient(circle at top right,#dbeafe,transparent 34%),linear-gradient(135deg,#f8fbff,#eef4ff);padding:48px;gap:32px;align-items:center}
.auth-panel{background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.8);border-radius:32px;padding:42px;box-shadow:var(--shadow);max-width:500px}
.brand-mark{width:54px;height:54px;border-radius:16px;background:#101828;color:white;display:grid;place-items:center;font-weight:900;letter-spacing:.04em;margin-bottom:20px}
h1{font-size:36px;line-height:1.12;margin:0 0 12px}h2,h3,p{margin-top:0}.auth-panel p{color:var(--muted);line-height:1.8}
.form-stack{display:grid;gap:14px;margin:28px 0 12px}.form-stack label{display:grid;gap:8px;color:#344054;font-size:14px;font-weight:650}
input,select,textarea{width:100%;border:1px solid var(--line);background:white;border-radius:14px;padding:12px 14px;outline:none;color:var(--text);transition:.18s;min-height:46px}
textarea{min-height:110px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgba(37,99,235,.10)}
.primary-btn,.secondary-btn,.ghost-btn,.danger-btn{height:42px;border-radius:13px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:760;transition:.18s;white-space:nowrap}
.primary-btn{background:var(--primary);color:white;box-shadow:0 8px 18px rgba(37,99,235,.22)}.primary-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}
.secondary-btn{background:var(--primary-soft);color:#1d4ed8}.secondary-btn:hover{background:#dbeafe}.ghost-btn{background:#f2f4f7;color:#344054}.ghost-btn:hover{background:#e7eaf0}.danger-btn{background:#fee2e2;color:#b91c1c}.full{width:100%}
.auth-panel small{display:block;color:var(--muted);line-height:1.8;margin-top:18px}.auth-preview{display:flex;align-items:center;justify-content:center}.phone-frame{width:min(100%,360px);background:#111827;border-radius:38px;padding:22px;display:grid;gap:12px;box-shadow:0 30px 70px rgba(15,23,42,.24)}.preview-card{height:70px;border-radius:22px;background:#1f2937;color:#cbd5e1;display:flex;align-items:center;padding:0 20px;font-weight:800}.preview-card.active{background:linear-gradient(135deg,#2563eb,#7c3aed);color:white}
.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--line);padding:22px 16px;display:flex;flex-direction:column;gap:18px}.side-brand{height:48px;display:flex;align-items:center;gap:10px;padding:0 8px}.side-brand span{width:38px;height:38px;border-radius:12px;background:#111827;color:#fff;display:grid;place-items:center;font-weight:900}.side-brand b{font-size:17px}.nav-list{display:grid;gap:6px}.nav-item{height:46px;padding:0 12px;border-radius:14px;display:flex;align-items:center;gap:12px;color:#344054;text-decoration:none;font-weight:760}.nav-item:hover,.nav-item.active{background:var(--primary-soft);color:#1d4ed8}.nav-ico{font-size:18px;width:24px;text-align:center}.side-card{margin-top:auto;background:#f8fafc;border:1px solid var(--line);border-radius:18px;padding:16px}.side-card p{color:var(--muted);font-size:13px;margin-bottom:4px}.side-card b{display:block;font-size:18px;margin-bottom:8px}.side-card span{color:var(--muted);font-size:12px;line-height:1.6}
.main{min-width:0}.topbar{position:sticky;top:0;z-index:10;height:82px;background:rgba(246,247,251,.85);backdrop-filter:blur(16px);border-bottom:1px solid rgba(231,234,240,.8);display:flex;align-items:center;justify-content:space-between;padding:0 28px;gap:16px}.eyebrow{text-transform:uppercase;color:var(--primary);font-size:12px;font-weight:900;letter-spacing:.08em}.topbar h2{font-size:22px;margin:2px 0 0}.top-actions{display:flex;align-items:center;gap:10px}.icon-btn{width:42px;height:42px;border-radius:12px;background:#fff;border:1px solid var(--line)}.view{padding:26px 28px 110px;max-width:1320px;margin:0 auto;width:100%}
.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:4px 0 16px}.section-title h3{font-size:20px;margin:0}.section-title p{color:var(--muted);margin:6px 0 0;line-height:1.7}.muted{color:var(--muted)}.tiny{font-size:12px;color:var(--muted)}
.metric{display:flex;flex-direction:column;gap:8px}.metric b{font-size:28px}.metric span{color:var(--muted);font-size:13px}.metric em{font-style:normal;color:var(--success);font-size:12px;font-weight:800}.flow-row{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.flow-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;min-height:118px}.flow-step.done{border-color:#bbf7d0;background:#f0fdf4}.flow-step.current{border-color:#bfdbfe;background:#eff6ff}.flow-step .num{width:30px;height:30px;border-radius:10px;background:#111827;color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:10px}.flow-step.done .num{background:var(--success)}.flow-step.current .num{background:var(--primary)}.flow-step b{display:block;margin-bottom:6px}.flow-step span{font-size:12px;color:var(--muted);line-height:1.55}.quick-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quick-card{padding:16px;border-radius:17px;background:#fff;border:1px solid var(--line);text-align:left;box-shadow:var(--shadow-sm)}.quick-card b{display:block;margin:8px 0 4px}.quick-card span{font-size:12px;color:var(--muted);line-height:1.6}.quick-card:hover{border-color:#bfdbfe;transform:translateY(-1px);transition:.18s}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-grid .wide{grid-column:1/-1}.checkbox-row{display:flex;flex-wrap:wrap;gap:8px}.pill,.status{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:780;background:#f2f4f7;color:#344054}.status.ok{background:#dcfce7;color:#15803d}.status.warn{background:#fef3c7;color:#b45309}.status.info{background:#dbeafe;color:#1d4ed8}.status.bad{background:#fee2e2;color:#b91c1c}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.tabs{display:flex;gap:8px;overflow:auto;padding-bottom:4px}.tab{height:38px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#344054;font-weight:760}.tab.active{background:#111827;color:#fff;border-color:#111827}.list{display:grid;gap:12px}.list-item{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}.item-main{min-width:0}.item-main b{display:block;margin-bottom:6px}.item-main p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.item-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}.data-table{width:100%;border-collapse:collapse;min-width:720px}.data-table th,.data-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}.data-table th{color:#667085;background:#f8fafc;font-size:12px}.data-table tr:last-child td{border-bottom:0}
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.video-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}.video-card video{width:100%;aspect-ratio:16/9;object-fit:cover;background:#111827;display:block}.video-body{padding:14px}.video-body h4{margin:0 0 8px;font-size:16px}.video-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.video-actions{display:flex;gap:8px}.video-actions button{flex:1}.project-card{display:grid;gap:12px}.progress-line{height:8px;background:#eef2f7;border-radius:999px;overflow:hidden}.progress-line span{display:block;height:100%;background:linear-gradient(90deg,#2563eb,#22c55e);border-radius:999px}.wizard{display:grid;grid-template-columns:260px 1fr;gap:18px}.wizard-steps{display:grid;gap:10px;align-content:start}.wizard-step{display:flex;align-items:center;gap:10px;padding:12px;border-radius:14px;border:1px solid var(--line);background:#fff;color:#344054;font-weight:760}.wizard-step.active{border-color:#bfdbfe;background:#eff6ff;color:#1d4ed8}.wizard-step.done{border-color:#bbf7d0;background:#f0fdf4;color:#15803d}.video-pick{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.video-pick label{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}.video-pick input{display:none}.video-pick input:checked + .pick-body{outline:3px solid #bfdbfe}.pick-body video{width:100%;aspect-ratio:16/9;object-fit:cover;background:#111827}.pick-body div{padding:10px;font-weight:800}.empty{padding:38px;text-align:center;color:var(--muted);background:#fff;border:1px dashed #cbd5e1;border-radius:18px}.split-layout{display:grid;grid-template-columns:1fr 360px;gap:18px}.drawer{position:fixed;inset:0;background:rgba(15,23,42,.58);z-index:50;display:flex;align-items:center;justify-content:center;padding:22px}.modal{width:min(960px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:24px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.modal-body{padding:20px}.modal video{width:100%;border-radius:18px;background:#111827}.close-btn{width:38px;height:38px;border-radius:12px;background:#f2f4f7}.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#111827;color:white;padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);z-index:99;font-weight:760}.upload-box{border:1px dashed #cbd5e1;border-radius:16px;padding:18px;background:#f8fafc}.upload-box input{background:#fff}.kbd{font-family:ui-monospace,Menlo,monospace;background:#f2f4f7;border:1px solid #e4e7ec;border-radius:7px;padding:1px 6px;color:#344054}.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.role-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:16px;text-align:left}.role-card.active{border-color:#93c5fd;background:#eff6ff}.mobile-nav{display:none}
@media (max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.video-grid{grid-template-columns:repeat(2,1fr)}.flow-row{grid-template-columns:repeat(3,1fr)}.quick-actions{grid-template-columns:repeat(2,1fr)}.split-layout{grid-template-columns:1fr}.wizard{grid-template-columns:1fr}.wizard-steps{grid-template-columns:repeat(5,1fr);overflow:auto}.wizard-step{min-width:150px}}
@media (max-width:760px){.desktop-only{display:none!important}.mobile-only{display:inline-flex!important}.auth-screen{grid-template-columns:1fr;padding:18px}.auth-preview{display:none}.auth-panel{border-radius:24px;padding:26px}h1{font-size:28px}.app-shell{display:block}.sidebar{position:fixed;z-index:40;left:0;top:0;bottom:0;width:280px;height:auto;transform:translateX(-105%);transition:.22s;box-shadow:var(--shadow)}.sidebar.open{transform:translateX(0)}.topbar{height:72px;padding:0 14px}.topbar h2{font-size:18px}.view{padding:16px 14px 92px}.grid-2,.grid-3,.grid-4,.video-grid,.form-grid,.quick-actions,.flow-row,.role-grid,.video-pick{grid-template-columns:1fr}.flow-step{min-height:auto}.card{padding:15px;border-radius:16px}.section-title{align-items:flex-start;flex-direction:column}.list-item{align-items:flex-start;flex-direction:column}.item-actions{width:100%;display:grid;grid-template-columns:1fr 1fr}.item-actions button{width:100%}.wizard-steps{display:flex}.mobile-nav{position:fixed;left:0;right:0;bottom:0;height:70px;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);z-index:30;padding-bottom:env(safe-area-inset-bottom)}.mobile-nav a{display:grid;place-items:center;text-decoration:none;color:#667085;font-size:11px;font-weight:800}.mobile-nav a.active{color:#1d4ed8}.mobile-nav span{font-size:18px}.modal{border-radius:20px}.drawer{align-items:flex-end;padding:0}.modal{max-height:94vh;border-radius:24px 24px 0 0}.toast{bottom:84px;width:max-content;max-width:92%}}