:root{--bg:#efe8df;--bg-strong:#e3d7c8;--panel:#fffbf6e0;--panel-border:#4954511f;--text:#1e2a2e;--muted:#6b7778;--accent:#2f6f6b;--accent-soft:#dceae7;--accent-strong:#174945;--secondary:#c97d55;--shadow:0 18px 60px #322b1e14;font-family:PingFang SC,Hiragino Sans GB,Noto Sans SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body{height:100%;color:var(--text);background:radial-gradient(circle at 0 0,#c97d5526,#0000 28%),radial-gradient(circle at 100% 0,#2f6f6b2e,#0000 22%),linear-gradient(#f4efe6 0%,#ece3d6 100%);margin:0;overflow:hidden}button,textarea{font:inherit}button{cursor:pointer}.shell{flex-direction:column;height:100vh;display:flex;overflow:hidden}.topbar{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid #49545114;justify-content:space-between;align-items:center;padding:18px 22px;display:flex}.topbar-left{align-items:center;gap:14px;display:flex}.topbar h1,.sidebar-header h2,.debug-header h2,.empty-state h2{margin:0;font-size:18px}.mode-chip,.eyebrow{color:var(--muted);margin:4px 0 0;font-size:12px}.mode-chip{background:var(--accent-soft);color:var(--accent-strong);border-radius:999px;align-items:center;padding:4px 10px;display:inline-flex}.topbar-actions,.toggle-row{align-items:center;gap:10px;display:flex}.workspace{flex:1;grid-template-columns:280px minmax(0,1fr) 330px;gap:18px;min-height:0;padding:18px;display:grid;overflow:hidden}.sidebar,.chat-column,.debug-panel{background:var(--panel);border:1px solid var(--panel-border);height:100%;min-height:0;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:26px}.sidebar.collapsed{width:88px}.sidebar{flex-direction:column;padding:18px 14px;display:flex;overflow:hidden}.sidebar-header{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.session-list{flex-direction:column;flex:1;gap:12px;min-height:0;display:flex;overflow:auto}.session-card{text-align:left;background:#ffffffbd;border:1px solid #2f6f6b14;border-radius:18px;padding:14px;transition:transform .18s,border-color .18s;position:relative}.session-card:hover{transform:translateY(-1px)}.session-card.active{background:linear-gradient(#dceae7f2,#fffffff2);border-color:#2f6f6b66}.session-card-top,.session-card-meta{justify-content:space-between;align-items:center;gap:10px;display:flex}.session-card p,.debug-item p,.plan-card-header p,.detail-card p{color:var(--muted);margin:8px 0 0;font-size:13px;line-height:1.5}.session-card-meta,.message-time,.detail-meta,.detail-card-top span{color:var(--muted);font-size:12px}.session-card-delete{color:#9a5136;margin-top:10px;font-size:12px;display:inline-block}.chat-column{flex-direction:column;min-height:0;display:flex;overflow:hidden}.chat-scroll{flex:1;min-height:0;padding:22px;overflow:auto}.message-row{flex-direction:column;gap:8px;margin-bottom:18px;display:flex}.message-row.user{align-items:flex-end}.message-label{color:var(--muted);font-size:12px}.message-bubble{background:#ffffffeb;border:1px solid #49545114;border-radius:22px;width:min(100%,860px);padding:16px 18px}.message-row.user .message-bubble{color:#f5efe8;background:linear-gradient(#2f6f6b,#245552)}.message-bubble p,.message-bubble ul,.message-bubble ol,.message-bubble h2,.message-bubble h3{margin-top:0}.message-bubble ul,.message-bubble ol{padding-left:20px}.plan-card{background:radial-gradient(circle at 100% 0,#2f6f6b2e,#0000 28%),linear-gradient(#fbf7f0 0%,#f3ebdf 100%);border:1px solid #2f6f6b29;border-radius:24px;width:min(100%,860px);margin-top:6px;padding:18px}.plan-card-header,.plan-card-stats,.plan-card-actions,.detail-card-top{justify-content:space-between;gap:16px;display:flex}.plan-card-header h3{margin:0}.plan-card-version{color:var(--accent-strong);background:#2f6f6b1a;border-radius:999px;padding:8px 12px;font-size:13px}.plan-card-route{margin:14px 0}.plan-card-preview-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.preview-tile{flex-direction:column;gap:8px;display:flex}.preview-tile img,.detail-card img{object-fit:cover;border-radius:16px;width:100%;height:92px}.preview-tile span{font-size:12px}.plan-card-stats{margin-top:16px}.plan-card-stats div{flex-direction:column;gap:4px;display:flex}.plan-card-stats span{color:var(--muted);font-size:12px}.plan-card-actions{margin-top:16px}.composer{border-top:1px solid #49545114;flex-shrink:0;padding:16px 22px 22px}.quick-intents{flex-wrap:wrap;gap:10px;margin-bottom:14px;display:flex}.intent-chip,.toggle,.version-pill,.ghost-button,.secondary-button,.primary-button{border:none;border-radius:999px;padding:10px 14px;transition:transform .16s,background .16s}.intent-chip,.ghost-button,.secondary-button,.version-pill{color:var(--accent-strong);background:#2f6f6b14}.toggle.active,.primary-button{background:var(--accent);color:#f8f1e9}.toggle{color:var(--accent-strong);background:#2f6f6b1a}.primary-button:hover,.secondary-button:hover,.ghost-button:hover,.toggle:hover,.intent-chip:hover,.version-pill:hover{transform:translateY(-1px)}.secondary-button.narrow{width:fit-content;padding-inline:12px}.composer-row{grid-template-columns:minmax(0,1fr) 112px;gap:12px;display:grid}.composer textarea,.drawer-input textarea{resize:none;background:#ffffffeb;border:1px solid #4954511f;border-radius:18px;outline:none;width:100%;min-height:84px;padding:14px 16px}.composer-send{border-radius:18px}.error-bar{color:#8d4223;background:#c97d5524;border-radius:16px;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;padding:10px 14px;display:flex}.debug-panel{flex-direction:column;min-height:0;padding:18px;display:flex}.debug-list{flex-direction:column;flex:1;gap:10px;min-height:0;margin-top:18px;display:flex;overflow:auto}.debug-item{background:#ffffffd9;border:1px solid #49545114;border-radius:18px;padding:14px}.debug-item.tool{border-left:4px solid var(--secondary)}.debug-item.thinking{border-left:4px solid var(--accent)}.debug-item-top{justify-content:space-between;gap:10px;font-size:13px;display:flex}.debug-item-actions{align-items:center;gap:8px;display:flex}.debug-copy{color:var(--accent-strong);background:#2f6f6b14;border:none;border-radius:999px;padding:4px 10px;font-size:12px}.drawer-backdrop{pointer-events:none;background:#131c1f00;transition:background .24s;position:fixed;inset:0}.drawer-backdrop.open{pointer-events:auto;background:#131c1f47}.drawer-panel{background:linear-gradient(#fbf7ef 0%,#f0e7db 100%);border:1px solid #49545114;border-radius:28px 28px 0 0;flex-direction:column;width:min(1024px,100vw - 22px);max-height:92vh;transition:transform .28s;display:flex;position:absolute;bottom:0;left:50%;transform:translate(-50%,104%);box-shadow:0 -24px 70px #1716122e}.drawer-panel.open{transform:translate(-50%)}.drawer-header,.drawer-input{border-bottom:1px solid #49545114;align-items:center;gap:14px;padding:18px 22px;display:flex}.drawer-version-strip{gap:10px;margin-left:auto;display:flex}.version-pill.active{background:var(--accent);color:#fbf4ec}.drawer-content{flex-direction:column;gap:16px;padding:18px 22px 12px;display:flex;overflow:auto}.drawer-card{background:#ffffffb3;border:1px solid #49545114;border-radius:22px;padding:18px}.drawer-section-title{margin-bottom:14px;font-weight:700}.detail-list{flex-direction:column;gap:14px;display:flex}.detail-card{border-top:1px solid #49545114;grid-template-columns:180px minmax(0,1fr);gap:16px;padding:14px 0;display:grid}.detail-card:first-of-type{border-top:none}.detail-card-body{flex-direction:column;gap:8px;display:flex}.detail-meta,.tag-row{flex-wrap:wrap;gap:10px;display:flex}.tag-chip{color:var(--accent-strong);background:#2f6f6b14;border-radius:999px;padding:6px 10px;font-size:12px}.drawer-input{border-top:1px solid #49545114;border-bottom:none}.drawer-input textarea{min-height:64px}.drawer-compare-summary{margin:0 0 12px}.quality-score-row{align-items:center;gap:16px;margin-bottom:14px;display:flex}.quality-score-badge{background:#2f6f6b1a;border-radius:18px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-width:92px;padding:14px 12px;display:flex}.quality-score-badge strong{font-size:30px;line-height:1}.quality-score-badge span{color:var(--muted);font-size:12px}.quality-metric-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:12px;display:grid}.quality-metric{background:#f7f4ece6;border-radius:16px;padding:12px}.quality-metric span{color:var(--muted);font-size:12px;display:block}.quality-metric strong{margin-top:6px;font-size:22px;display:block}.drawer-diff-group{flex-direction:column;gap:10px;margin-top:12px;display:flex}.drawer-active-version{color:var(--muted);margin-top:12px;font-size:13px}.drawer-loading,.empty-state{text-align:center;color:var(--muted);padding:28px}.empty-state{background:#ffffff8f;border:1px dashed #2f6f6b38;border-radius:24px}.route-map{width:100%;height:auto;display:block}.auth-shell{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{width:min(460px,100%);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffbf6eb;border:1px solid #4954511f;border-radius:28px;padding:32px}.auth-loading-card{text-align:center}.auth-card h1{margin:10px 0 0;font-size:34px}.auth-hint{color:var(--muted);margin:12px 0 0;line-height:1.6}.auth-form{flex-direction:column;gap:16px;margin-top:24px;display:flex}.auth-field{flex-direction:column;gap:8px;font-size:14px;display:flex}.auth-field input{width:100%;font:inherit;background:#ffffffeb;border:1px solid #4954511f;border-radius:18px;outline:none;padding:14px 16px}.auth-error{color:#8d4223;background:#c97d5524;border-radius:16px;padding:10px 14px}.auth-submit{justify-content:center;width:100%}@media (max-width:1180px){.workspace{grid-template-columns:240px minmax(0,1fr)}.debug-panel{display:none}}@media (max-width:860px){html,body{overflow:auto}.shell{height:auto;min-height:100vh}.workspace{grid-template-columns:1fr;overflow:visible}.sidebar{height:auto;min-height:auto}.chat-column,.debug-panel{height:auto}.detail-card{grid-template-columns:1fr}.plan-card-preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.composer-row{grid-template-columns:1fr}.drawer-panel{width:calc(100vw - 10px)}.quality-metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}