@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap";:root{--bg: #FAFAFC;--bg-grad-1: #F4F6FB;--bg-grad-2: #FAFAFC;--surface: #FFFFFF;--surface-2: #FFFFFF;--surface-3: #F4F6FB;--surface-soft: #F8FAFC;--border: #E7EBF2;--border-strong: #D5DCE8;--text: #0F172A;--text-dim: #64748B;--text-faint: #94A3B8;--primary: #2563EB;--primary-hover: #1D4ED8;--primary-dark: #1E40AF;--accent: #2563EB;--accent-grad: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);--accent-2: #10B981;--accent-2-grad: linear-gradient(135deg, #34D399 0%, #10B981 100%);--orange: #F97316;--orange-grad: linear-gradient(135deg, #FB923C 0%, #F97316 100%);--warn: #F59E0B;--warn-grad: linear-gradient(135deg, #FBBF24 0%, #F59E0B 100%);--danger: #EF4444;--danger-grad: linear-gradient(135deg, #F87171 0%, #EF4444 100%);--cyan: #0EA5E9;--purple: #6366F1;--primary-soft: rgba(37, 99, 235, .1);--primary-soft-strong: rgba(37, 99, 235, .16);--radius: 16px;--radius-sm: 12px;--radius-lg: 20px;--clay: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 16px rgba(15, 23, 42, .06);--clay-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 2px 8px rgba(15, 23, 42, .05);--clay-pressed: inset 0 1px 2px rgba(15, 23, 42, .06);--clay-accent: 0 4px 14px rgba(37, 99, 235, .28);--ring: 0 0 0 3px rgba(37, 99, 235, .16)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}html,body{max-width:100%;overflow-x:clip}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);font-size:14px;line-height:1.55;background:var(--bg);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:99px;border:2px solid 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.15s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:var(--ring)}input::placeholder{color:var(--text-faint)}label{display:block;font-size:12.5px;color:var(--text-dim);margin-bottom:7px;margin-top:14px;font-weight:600}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.spacer{flex:1}.tabs{display:inline-flex;gap:4px;background:var(--surface-3);border-radius:12px;padding:4px;border:1px solid var(--border)}.tab{padding:7px 15px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:600;color:var(--text-dim);transition:all .15s}.tab:hover{color:var(--primary)}.tab.active{background:var(--surface);color:var(--primary);box-shadow:var(--clay-sm)}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;width:100%;padding:20px;background:radial-gradient(900px 500px at 12% -10%,rgba(37,99,235,.1),transparent 60%),radial-gradient(700px 500px at 100% 0%,rgba(249,115,22,.07),transparent 55%),var(--bg)}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:38px;width:100%;max-width:430px;box-shadow:var(--clay)}.login-card .brand{justify-content:center;padding:0 0 6px;font-size:24px}.login-logo{display:flex;justify-content:center;margin-bottom:18px}.login-logo img{height:38px;width:auto}.login-card h1{font-size:21px;margin-bottom:6px;text-align:center;color:var(--text);font-weight:800}.login-card p{color:var(--text-dim);margin-bottom:18px;text-align:center}.error-text{color:var(--danger);font-size:13px;margin-top:12px;text-align:center}.loading{color:var(--text-dim);padding:60px 20px;text-align:center}.chart-box{position:relative;height:290px}.toast{position:fixed;bottom:90px;right:24px;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent-2);padding:14px 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860px){.app{flex-direction:column}.sidebar{display:none}.main{padding:18px 16px 110px;max-width:100%}.page-title{font-size:22px}.topbar{display:flex;align-items:center;gap:12px;padding:14px 18px;position:sticky;top:0;z-index:40;background:#ffffffe6;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.topbar .brand{padding:0;font-size:17px}.topbar .brand-logo{width:30px;height:30px;border-radius:9px;font-size:14px}.topbar .brand-img{height:22px}.topbar .spacer{flex:1}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:100;padding:8px 8px calc(8px + env(safe-area-inset-bottom));background:#fffffff5;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-top:1px solid var(--border);box-shadow:0 -4px 20px #0f172a0f;justify-content:space-around;gap:4px}.bn-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:7px 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h3{margin:4px 0 8px;font-size:18px;color:var(--text)}.tut-step-body p{margin:6px 0;color:#334155}.tut-step-body a{color:var(--primary);word-break:break-word}.tut-step-body .codeblock{max-width:100%;min-width:0}.tut-img{margin-top:14px;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;background:var(--surface-soft);box-shadow:var(--clay-sm);display:inline-block;max-width:100%}.tut-img img{display:block;max-width:100%;max-height:420px;width:auto;height:auto;object-fit:contain}@media (max-width: 640px){.tut-step{grid-template-columns:1fr;gap:12px;padding:16px}.tut-step-num{width:44px;height:44px;font-size:17px;border-radius:12px}.tut-img img{max-height:360px}}