:root{--bg: #ffffff;--surface: #f5f5f7;--fg: #1d1d1f;--muted: #6e6e73;--border: #d2d2d7;--accent: #0071e3;--accent-secondary: #2997ff;--accent-hover: color-mix(in oklch, var(--accent) 90%, white);--accent-active: color-mix(in oklch, var(--accent) 78%, black);--accent-soft: color-mix(in oklch, var(--accent) 15%, transparent);--accent-halo: color-mix(in oklch, var(--accent) 35%, transparent);--fg-soft: color-mix(in oklch, var(--fg) 6%, transparent);--link-text: color-mix(in oklch, var(--accent) 72%, black);--error: oklch(.628 .222 25.5);--error-soft: color-mix(in oklch, var(--error) 15%, transparent);--success: oklch(.726 .191 148.5);--success-soft: color-mix(in oklch, var(--success) 15%, transparent);--success-text: oklch(.5 .13 150);--success-border: color-mix(in oklch, var(--success-text) 35%, transparent);--warn: oklch(.77 .165 65);--warn-soft: color-mix(in oklch, var(--warn) 15%, transparent);--warn-text: oklch(.56 .14 60);--warn-border: color-mix(in oklch, var(--warn-text) 35%, transparent);--font-display: "SF Pro Display", "SF Pro Icons", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Helvetica, Arial, sans-serif;--font-body: "SF Pro Text", "SF Pro Icons", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Helvetica, Arial, sans-serif;--font-mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Monaco, Consolas, monospace;--radius: 8px;--radius-btn: 5px;--radius-card: 18px;--radius-pill: 980px;--shadow-card: 0 12px 32px rgba(0, 0, 0, .08);--shadow-dialog: 0 24px 64px rgba(29, 29, 31, .16);--sidebar-w: 236px;--ease: cubic-bezier(.28, 0, .22, 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h1{font-size:24px;font-weight:700;letter-spacing:-.015em;line-height:1.15}.auth-head p{font-size:14px;color:var(--muted);margin:8px 0 0}.auth-head .mark{margin:0 auto 18px}.auth-head .tagline{margin-top:14px}.panel-title{display:flex;align-items:center;gap:12px}.panel-title .tick{width:40px;height:40px;border-radius:var(--radius);background:var(--success-soft);color:var(--success-text);display:grid;place-items:center;flex:none}.panel-title .tick svg{width:20px;height:20px}.panel-title h2{font-size:20px;font-weight:700;letter-spacing:-.01em}.panel-title p{margin:2px 0 0;font-size:14px;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:600;letter-spacing:-.005em;white-space:nowrap;transition:background .15s var(--ease),border-color .15s var(--ease),color .15s var(--ease),box-shadow .15s var(--ease)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:var(--shadow-card)}.btn-primary:active{background:var(--accent-active);border-color:var(--accent-active)}.btn-secondary{background:transparent;border-color:var(--accent);color:var(--link-text)}.btn-secondary:hover{background:var(--accent-soft)}.btn-secondary:active{background:color-mix(in oklch,var(--accent) 22%,transparent)}.btn-ghost{background:transparent;border-color:transparent;color:var(--fg);padding-inline:12px}.btn-ghost:hover{background:var(--fg-soft)}.btn-danger{background:transparent;border-color:transparent;color:var(--error);padding-inline:12px}.btn-danger:hover{background:var(--error-soft)}.btn-sm{height:36px;padding-inline:14px;font-size:14px}.btn-block{width:100%}.btn[disabled]{background:var(--surface);border-color:var(--border);color:var(--muted);cursor:not-allowed}.btn-arrow svg{width:15px;height:15px;transition:transform .15s var(--ease)}.btn-arrow:hover svg{transform:translate(2px)}.btn svg.ic{width:18px;height:18px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field>label{font-size:13px;color:var(--muted);font-weight:500}.field>label b.req{color:var(--error);font-weight:400;margin-left:2px}.input-wrap{position:relative;display:flex;align-items:center}.input,select.input{width:100%;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-btn);background:#fff;color:var(--fg);font-size:15px;transition:border-color .15s var(--ease),box-shadow .15s var(--ease);-webkit-appearance:none;-moz-appearance:none;appearance:none}.input::placeholder{color:var(--muted);opacity:.8}.input:hover{border-color:color-mix(in oklch,var(--muted) 45%,transparent)}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-halo)}.input.invalid{border-color:var(--error)}.input.invalid:focus{box-shadow:0 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10px;border-radius:999px;background:var(--fg-soft);font-size:12px;color:var(--muted)}.demo-tag svg{width:12px;height:12px}.content{width:100%;max-width:1200px;margin:0 auto;padding:26px 28px 64px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:18px 20px}.stat-card .k{font-size:13px;color:var(--muted)}.stat-card .v{font-family:var(--font-display);font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:1.2;margin-top:6px}.stat-card .d{display:inline-flex;align-items:center;gap:4px;font-size:12px;margin-top:8px}.stat-card .d svg{width:12px;height:12px}.stat-card .d.up{color:var(--success-text)}.stat-card .d.mid{color:var(--warn-text)}.stat-card .d.flat{color:var(--muted)}.panel{background:#fff;border:1px solid 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