:root{--bg: #f4f6fb;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #eff4ff;--border: #e5e7eb;--danger: #dc2626;--success: #16a34a;--radius: 12px;--shadow: 0 8px 30px rgba(17, 24, 39, .08);--primary-hover: #1e293b;--accent: #10b981;--accent-strong: #059669;--accent-bg: #ecfdf5;--accent-soft: #bbf7d0;--link: #2563eb;--focus-ring: rgba(16, 185, 129, .16)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:#ffffffe6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid 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.dev-ico{width:34px;height:34px;border-radius:9px;background:var(--surface-3);color:var(--text-2);display:flex;align-items:center;justify-content:center;flex-shrink:0}.acct-root .dev-ico svg{width:17px;height:17px}.acct-root .bind-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}.acct-root .bind-btn{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);font-size:13.5px;cursor:pointer;transition:background .15s,border-color .15s;text-align:left;color:var(--text)}.acct-root .bind-btn:hover{background:var(--surface-2);border-color:var(--accent-strong)}.acct-root .bind-btn .plus{margin-left:auto;color:var(--text-3);display:inline-flex}.acct-root .bind-btn .plus svg{width:16px;height:16px}.acct-root .ico-badge{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:700}