:root{--bg:#f4f6fa;--surface:#fff;--surface-2:#fafbfd;--border:#d3deef;--border-strong:#b3c6e6;--line:#e6ecf5;--text:#1b2430;--text-2:#46566b;--muted:#7a899e;--accent:#1f63d6;--accent-hover:#1a55ba;--accent-soft:#eaf1fc;--green:#15803d;--green-soft:#e6f4ec;--red:#c0392b;--red-soft:#fae9e7;--amber:#9a6700;--amber-soft:#fbf2dc;--header-h:56px;--sidebar-w:232px}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:14px;line-height:1.5}a{color:var(--accent);text-decoration:none}h2{letter-spacing:-.01em;margin:0;font-size:20px;font-weight:600}h3{text-transform:uppercase;letter-spacing:.05em;color:var(--text-2);margin:28px 0 12px;font-size:14px;font-weight:600}.muted{color:var(--muted);font-size:13px}.app{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid 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.5s}.update-banner{background:var(--accent-soft);border:1px solid var(--accent);color:var(--accent);justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;padding:10px 16px;font-size:14px;font-weight:600;display:flex}.update-banner a{color:inherit;text-decoration:underline}.portal-wrap{background:linear-gradient(135deg,#eef2ff 0%,#f7f9fc 50%,#ecfdf5 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.portal-card{border:1px solid var(--border);background:#fff;border-radius:16px;width:100%;max-width:400px;padding:34px;box-shadow:0 12px 40px #1118271a}.portal-card h2{margin:0 0 4px}.portal-card label{font-size:13px}.portal-card input,.portal-card .btn{border-radius:10px}.portal-page{background:#f4f6fb;min-height:100vh}.portal-hero{background:linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);color:#fff;padding:22px 0 0;box-shadow:0 4px 20px 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var(--border);color:var(--muted);background:#f7f9fc;border-radius:999px;padding:3px 10px;font-size:11.5px}.feature-pill[data-on="1"]{background:var(--green-soft);color:var(--green);border-color:#bfe0cb}.portal-page .badge{border-radius:999px}.chat{max-width:720px}.chat-box{border:1px solid var(--border);background:#fff;border-radius:16px;flex-direction:column;gap:12px;height:52vh;min-height:320px;padding:18px;display:flex;overflow-y:auto;box-shadow:0 4px 14px #1118270d}.chat-empty{color:var(--muted);margin:auto}.chat-msg{flex-direction:column;max-width:78%;display:flex}.chat-msg.me{align-self:flex-end;align-items:flex-end}.chat-msg.them{align-self:flex-start;align-items:flex-start}.chat-bubble{white-space:pre-wrap;word-break:break-word;border-radius:16px;padding:10px 14px;font-size:14px;line-height:1.45}.chat-msg.me .chat-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.chat-msg.them .chat-bubble{color:var(--text);background:#eef1f6;border-bottom-left-radius:4px}.chat-meta{color:var(--muted);margin-top:3px;font-size:10.5px}.chat-input{gap:10px;margin-top:14px;display:flex}.chat-input input{border-radius:12px;flex:1}.chat-input .btn{border-radius:12px}.support-layout{grid-template-columns:300px 1fr;gap:16px;display:grid}.support-list{background:var(--surface);border:1px solid var(--border);max-height:70vh;overflow-y:auto}.support-item{text-align:left;border:none;border-bottom:1px solid var(--border);cursor:pointer;background:0 0;width:100%;padding:12px 14px;font-family:inherit;display:block}.support-item:hover{background:var(--surface-2)}.support-item.on{background:var(--accent-soft)}.support-item-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.support-badge{background:var(--red);color:#fff;text-align:center;border-radius:999px;min-width:18px;padding:1px 7px;font-size:11px;font-weight:700}.support-preview{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:3px;font-size:12.5px;overflow:hidden}.support-time{color:var(--muted);margin-top:3px;font-size:11px}.support-chat-wrap{background:var(--surface);border:1px solid var(--border);padding:16px}.support-conv-head{border-bottom:1px solid var(--border);flex-direction:column;gap:2px;margin-bottom:6px;padding-bottom:12px;display:flex}.nav a .nav-badge{background:var(--red);color:#fff;border-radius:999px;margin-left:auto;padding:1px 7px;font-size:10.5px;font-weight:700}.nav a{align-items:center;display:flex}.portal-tabs .tab-dot{color:#fff;text-align:center;background:#ef4444;border-radius:999px;min-width:18px;margin-left:7px;padding:0 6px;font-size:11px;font-weight:700;display:inline-block}.mod-banner{background:var(--red-soft);color:var(--red);border:1px solid #f0c9c4;align-items:center;gap:10px;margin-bottom:10px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.mod-bar{border-top:1px solid var(--border);align-items:center;gap:8px;margin-top:8px;padding:8px 0;display:flex}.chat-blocked{background:var(--red-soft);color:var(--red);border:1px solid #f0c9c4;margin-bottom:10px;padding:10px 12px;font-size:13px;font-weight:600}.chat-msg.system{align-self:center;max-width:90%}.chat-msg.system .chat-bubble{background:var(--amber-soft);color:var(--amber);text-align:center;border:1px solid #ecddae;font-size:12.5px}.chat-msg.system .chat-meta{text-align:center}