:root{--bg: #f4f5f9;--panel: #ffffff;--ink: #1f2430;--ink-soft: #5b6478;--muted: #98a1b3;--line: #e6e8ef;--accent: #4f46e5;--accent-soft: #eef0ff;--ok: #16a34a;--err: #dc2626;--radius: 12px;--shadow: 0 1px 3px rgba(20, 24, 40, .06), 0 6px 18px rgba(20, 24, 40, .05)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--line);flex:0 0 auto}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px}.brand-logo{font-size:20px}.header-actions{display:flex;gap:10px}.btn{border:1px solid transparent;border-radius:9px;padding:8px 14px;font-size:13px;cursor:pointer;transition:.15s;font-weight:600}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:not(:disabled):hover{background:#4338ca}.btn-ghost{background:var(--accent-soft);color:var(--accent)}.btn-ghost:not(:disabled):hover{background:#e3e6ff}.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}.btn-outline:not(:disabled):hover{border-color:var(--accent);color:var(--accent)}.btn-del{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:14px;padding:4px 6px;border-radius:6px}.btn-del:hover{background:#fde8e8;color:var(--err)}.block{display:block;width:100%;margin-top:10px;text-align:center}.main{flex:1 1 auto;display:grid;grid-template-columns:300px 1fr 340px;gap:14px;padding:14px;min-height:0}.col-left,.col-center,.col-right{min-height:0;overflow:auto}.col-center{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column}.col-right{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.upload-zone{background:var(--panel);border:1.5px dashed #c7cbe0;border-radius:var(--radius);padding:22px 16px;text-align:center;cursor:pointer;transition:.15s;box-shadow:var(--shadow)}.upload-zone.drag{border-color:var(--accent);background:var(--accent-soft)}.upload-icon{font-size:26px;color:var(--accent)}.upload-title{font-weight:600;margin-top:6px}.upload-hint{color:var(--muted);font-size:12px;margin-top:4px}.section-title{font-weight:700;font-size:13px;color:var(--ink-soft);margin-bottom:10px;text-transform:uppercase;letter-spacing:.04em}.project-list{margin-top:14px}.project-item{display:flex;align-items:center;justify-content:space-between;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px;cursor:pointer;transition:.15s}.project-item:hover{border-color:var(--accent)}.project-item.active{border-color:var(--accent);background:var(--accent-soft)}.project-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.project-sub{color:var(--muted);font-size:11px;margin-top:2px}.field{display:block;margin-bottom:12px}.field-label{display:block;font-size:12px;color:var(--ink-soft);margin-bottom:5px;font-weight:600}.field select,.field input{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;background:#fff;color:var(--ink)}.field select:focus,.field input:focus{outline:none;border-color:var(--accent)}.field-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.field-hint{color:var(--muted);font-size:11.5px;line-height:1.5;margin:4px 0 10px}.switch{position:relative;display:inline-block;width:42px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;top:0;right:0;bottom:0;left:0;background:#cdd2e0;border-radius:24px;transition:.2s}.slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}.switch input:checked+.slider{background:var(--accent)}.switch input:checked+.slider:before{transform:translate(18px)}.radio-group{display:flex;flex-direction:column;gap:8px;margin:6px 0 12px}.radio{display:flex;align-items:center;gap:8px;font-size:13px}.actions{margin-top:16px;border-top:1px solid var(--line);padding-top:14px}.progress{margin-top:10px;background:#eef0f6;border-radius:8px;height:22px;position:relative;overflow:hidden}.progress-bar{height:100%;background:var(--accent);transition:width .3s}.progress-text{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:11px;color:#2a2f3d}.translated-note{margin-top:8px;color:var(--ok);font-size:12px}.preview-panel{display:flex;flex-direction:column;min-height:0;flex:1}.preview-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}.slide-counter{color:var(--muted);font-size:12px}.slide-strip{display:flex;gap:8px;padding:12px 16px;overflow-x:auto;border-bottom:1px solid var(--line)}.slide-chip{flex:0 0 auto;width:38px;height:38px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer;font-weight:600;color:var(--ink-soft)}.slide-chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.slide-canvas{padding:18px 20px;overflow:auto;flex:1}.para-block{border-left:3px solid var(--line);padding:8px 12px;margin-bottom:14px;background:#fbfbfe;border-radius:0 8px 8px 0}.para-src{margin-bottom:6px}.para-tgt{margin-top:2px}.tag{display:inline-block;font-size:10px;font-weight:700;color:var(--muted);background:#eef0f6;border-radius:4px;padding:1px 6px;margin-right:8px;vertical-align:middle}.tag.tgt{color:var(--accent);background:var(--accent-soft)}.para-text{vertical-align:middle;line-height:1.6}.para-pending{color:var(--muted);font-size:12px;font-style:italic}.muted{color:var(--muted)}.center{text-align:center;margin-top:40px}.empty-center{margin:auto;text-align:center;color:var(--ink-soft)}.empty-icon{font-size:48px}.empty-center h2{margin:10px 0 6px}.empty-center p{color:var(--muted)}.toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%);padding:10px 18px;border-radius:10px;font-size:13px;font-weight:600;box-shadow:var(--shadow);z-index:50}.toast.ok{background:#ecfdf3;color:var(--ok);border:1px solid #bbf7d0}.toast.err{background:#fef2f2;color:var(--err);border:1px solid #fecaca}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#14182866;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.modal{background:#fff;border-radius:14px;width:100%;max-width:440px;box-shadow:var(--shadow);overflow:hidden}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}.modal-head h3{margin:0;font-size:15px}.modal-body{padding:18px;max-height:70vh;overflow:auto}.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 18px;border-top:1px solid var(--line)}@media (max-width: 900px){.main{grid-template-columns:1fr;overflow:auto}.col-left{order:1}.col-right{order:2}.col-center{order:3;min-height:60vh}.app{height:auto;min-height:100vh}}