:root{--bg:#05070a;--bg-elev:#0b0f14;--bg-elev-2:#121820;--border:#1e2731;--border-strong:#2a3644;--text:#e7edf3;--text-dim:#8892a0;--text-muted:#5b6675;--accent:#7cf5d6;--accent-dim:#2a6a5a;--danger:#ff5c7a;--font-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);min-height:100vh;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit}::selection{background:var(--accent);color:#05070a}.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--border);background:rgba(5,7,10,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:-webkit-sticky;position:sticky;top:0;z-index:20}.nav-logo{height:22px;width:auto;filter:invert(1) brightness(1.1)}.nav-right{display:flex;align-items:center;gap:16px;font-size:13px}.nav-btn,.nav-right{color:var(--text-dim)}.nav-btn{background:transparent;border:1px solid var(--border-strong);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:12px;transition:all .15s}.nav-btn:hover{color:var(--text);border-color:var(--accent-dim)}.page{max-width:1100px;margin:0 auto;padding:48px 32px 96px}.page-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:32px}.page-title{font-size:28px;font-weight:600;letter-spacing:-.02em;margin:0}.page-subtitle{color:var(--text-muted);font-size:13px;font-family:var(--font-mono)}.plist{list-style:none;padding:0;margin:0;border-top:1px solid var(--border)}.plist-item{display:grid;grid-template-columns:1fr auto auto;align-items:center;grid-gap:24px;gap:24px;padding:20px 8px;border-bottom:1px solid var(--border);transition:background .15s;cursor:pointer}.plist-item:hover{background:var(--bg-elev)}.plist-item-main{min-width:0}.plist-item-title{font-size:16px;font-weight:500;margin:0 0 4px;color:var(--text)}.plist-item-desc{color:var(--text-dim);font-size:13px;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.plist-item-meta{color:var(--text-muted);font-size:12px;font-family:var(--font-mono);white-space:nowrap}.plist-item-arrow{color:var(--text-muted);transition:transform .15s,color .15s}.plist-item:hover .plist-item-arrow{color:var(--accent);transform:translateX(4px)}.empty{padding:64px 16px;text-align:center;color:var(--text-muted);border:1px dashed var(--border-strong);border-radius:8px}.empty code{color:var(--accent);background:var(--bg-elev);padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-size:12px}.login-wrap{position:relative;min-height:100vh;overflow:hidden}.login-canvas{position:fixed;inset:0;z-index:0;width:100%;height:100%}.login-overlay{position:fixed;inset:0;z-index:1;background:radial-gradient(circle at 50% 40%,rgba(5,7,10,.4) 0,rgba(5,7,10,.85) 60%,rgba(5,7,10,.98) 100%);pointer-events:none}.login-card{position:relative;z-index:2;max-width:380px;margin:0 auto;padding:40px 32px;min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center}.login-logo{height:32px;width:auto;margin-bottom:12px;filter:invert(1) brightness(1.15)}.login-tag{color:var(--text-muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:40px}.login-form{width:100%;display:flex;flex-direction:column;gap:12px}.login-input{width:100%;padding:14px 16px;background:rgba(11,15,20,.7);border:1px solid var(--border-strong);border-radius:8px;color:var(--text);font-family:var(--font-mono);font-size:14px;outline:none;transition:border-color .15s,box-shadow .15s;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.login-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,245,214,.12)}.login-btn{width:100%;padding:14px 16px;background:var(--accent);color:#05070a;border:none;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;transition:transform .05s,opacity .15s}.login-btn:hover{opacity:.92}.login-btn:active{transform:translateY(1px)}.login-btn:disabled{opacity:.5;cursor:not-allowed}.login-error{color:var(--danger);font-size:12px;font-family:var(--font-mono);min-height:16px;text-align:center}.viewer{display:grid;grid-template-columns:1fr 0;height:calc(100vh - 55px);transition:grid-template-columns .25s ease}.viewer.with-chat{grid-template-columns:1fr 420px}.viewer-frame{border:none;width:100%;height:100%;background:#fff}.viewer-toolbar{position:fixed;bottom:20px;right:20px;z-index:30;display:flex;gap:8px}.viewer-toolbar.with-chat{right:440px}.tool-btn{background:var(--bg-elev-2);border:1px solid var(--border-strong);color:var(--text);padding:10px 14px;border-radius:8px;cursor:pointer;font-size:13px;display:inline-flex;align-items:center;gap:6px;box-shadow:0 4px 12px rgba(0,0,0,.35);transition:all .15s}.tool-btn:hover{border-color:var(--accent);color:var(--accent)}.tool-btn.primary{background:var(--accent);color:#05070a;border-color:var(--accent)}.tool-btn.primary:hover{color:#05070a;opacity:.9}.chat{border-left:1px solid var(--border);background:var(--bg-elev);display:flex;flex-direction:column;height:100%;overflow:hidden}.chat-header{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.chat-header h3{margin:0;font-size:13px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-dim)}.chat-close{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:18px;padding:0 4px}.chat-body{flex:1 1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.chat-msg{padding:10px 12px;border-radius:8px;font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.chat-msg.user{background:var(--bg-elev-2);border:1px solid var(--border);align-self:flex-end;max-width:85%}.chat-msg.assistant{color:var(--text-dim);align-self:flex-start;max-width:100%}.chat-msg.system{color:var(--text-muted);text-align:center;padding:4px}.chat-diff-note,.chat-msg.system{font-family:var(--font-mono);font-size:11px}.chat-diff-note{color:var(--accent);padding:6px 10px;background:rgba(124,245,214,.06);border:1px solid var(--accent-dim);border-radius:6px;align-self:flex-start}.chat-input-wrap{border-top:1px solid var(--border);padding:12px;display:flex;gap:8px;align-items:flex-end}.chat-input{flex:1 1;background:var(--bg-elev-2);border:1px solid var(--border-strong);color:var(--text);padding:10px 12px;border-radius:8px;font-family:inherit;font-size:13px;resize:none;outline:none;max-height:160px;min-height:40px}.chat-input:focus{border-color:var(--accent)}.chat-send{background:var(--accent);color:#05070a;border:none;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600;font-size:13px}.chat-send:disabled{opacity:.5;cursor:not-allowed}.upload{position:relative}.upload-btn{border-color:var(--accent-dim);color:var(--accent)}.upload-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);background:rgba(124,245,214,.05)}.upload-toast{position:absolute;top:calc(100% + 8px);right:0;min-width:300px;max-width:420px;padding:12px 32px 12px 14px;border-radius:8px;font-size:13px;line-height:1.5;z-index:30;background:var(--bg-elev-2);border:1px solid var(--border-strong);box-shadow:0 8px 24px rgba(0,0,0,.45)}.upload-toast code{font-family:var(--font-mono);font-size:12px;color:var(--accent);background:rgba(124,245,214,.08);padding:1px 6px;border-radius:4px}.upload-toast.error{border-color:rgba(255,92,122,.4);color:var(--danger)}.upload-toast.success{border-color:var(--accent-dim);color:var(--accent)}.upload-toast.warn{border-color:rgba(255,200,100,.35);color:#ffd39a}.upload-toast-close{position:absolute;top:6px;right:8px;background:transparent;border:none;color:inherit;cursor:pointer;font-size:16px;opacity:.6}.upload-toast-close:hover{opacity:1}