:root{--blue:#3656db;--muted:#60718a;--line:#dfe7f1;background:#f5f7fb;color:#202d43;font-family:"Microsoft YaHei","Segoe UI",sans-serif}header{height:76px;padding:0 36px;gap:22px}.header-note{display:flex;align-items:center;gap:7px}.status-dot{width:7px;height:7px;background:#40886b;border-radius:50%}.brand-mark{background:linear-gradient(140deg,#5575eb,#3656db);box-shadow:0 3px 10px #3656db20}.layout{max-width:1520px;grid-template-columns:212px 1fr}.local-note{margin-top:55px}.nav-button{padding:13px 15px}.nav-button.active{box-shadow:inset 3px 0 #3656db;border-radius:7px}.nav-button:last-child{margin-top:18px;border-top:1px solid var(--line);border-radius:0;font-size:13px;color:#7b8297}main{padding:35px 36px 0}.intro{padding:10px 0 2px}h1{font-size:30px;letter-spacing:0}.intro h1 span{color:#3656db}.eyebrow{font-size:12px;letter-spacing:1px;color:#667a9c}.sub{line-height:1.8}.trust-row{display:flex;gap:18px;font-size:12px;color:#67778d;margin-top:18px;flex-wrap:wrap}.intro-badge{background:#ebf0fc;border:0;border-radius:12px;padding:17px 22px;margin:0;color:#7283a1}.intro-badge b{font-size:17px;color:#3a5689}.search{margin:25px 0 17px;box-shadow:0 2px 5px #22304804}.quick-filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:25px}.quick-filters button{border:0;border-radius:7px;padding:8px 13px;background:transparent;font-size:13px;color:#6a7990}.quick-filters button.active{background:#e9eefb;color:#3656db;font-weight:600}#clear-history{margin-left:auto;font-size:12px}.section-title{margin-bottom:15px}.tool-grid{gap:14px}.tool-card{position:relative;padding:0;min-height:153px;box-shadow:0 2px 3px #20365902;transition:border-color .15s,box-shadow .15s}.tool-card:hover{transform:none;box-shadow:0 6px 18px #20365908;border-color:#b6c6e4}.tool-open{display:block;border:0;background:transparent;text-align:left;padding:20px;width:100%;height:100%;color:inherit;border-radius:13px}.card-top{justify-content:flex-start;gap:11px;margin-bottom:15px}.tool-icon{width:36px;height:36px;border-radius:10px}.tool-icon svg{width:21px;height:21px}.tag{font-size:11px;background:transparent;padding:0;color:#8291a6}.tool-card h3{font-size:16px;margin-bottom:7px}.tool-card p{font-size:13px;line-height:1.8}.star-button{position:absolute;right:10px;top:13px;border:0;background:transparent;color:#8a9ab1;padding:8px;font-size:17px;border-radius:7px}.star-button[aria-pressed=true]{color:#aa7627;background:#fff6df}.ai-notice{font-size:12px;color:#7b879a;margin:23px 0 0;padding:14px 16px;border:1px dashed #dbe2ed;border-radius:8px;line-height:1.8}.bottom-note{background:#ecf1f7;padding:17px;margin-top:18px}.work-surface{max-width:1030px;padding:24px}.drop{padding:24px 16px}.preview-area:empty{display:none}.preview-area{margin-top:18px}.file-list,.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.file-tile,.page-tile{border:1px solid var(--line);background:#fafbfd;border-radius:9px;padding:10px;min-width:0}.file-tile img,.page-tile canvas{display:block;max-width:100%;height:125px;object-fit:contain;margin:auto}.page-tile canvas{height:auto;max-height:185px}.file-name{font-size:12px;line-height:1.6;word-break:break-all;margin:8px 0}.tile-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.tile-actions button{font-size:12px;border:1px solid #d7e0ed;border-radius:5px;background:#fff;color:#486388;padding:6px 9px}.tile-actions span{font-size:12px;color:#64758f}.preview-hint{font-size:12px;color:#6a7d96;line-height:1.8}.preview-error{color:#af4545}.csv-preview{overflow:auto;max-height:250px;border:1px solid var(--line);border-radius:8px}.csv-preview table{border-collapse:collapse;min-width:100%;font-size:13px}.csv-preview th,.csv-preview td{border:1px solid #e2e8f0;padding:8px 12px;text-align:left;white-space:pre-wrap;min-width:80px}.csv-preview th{background:#f0f4fa}.comparison{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:12px}.comparison figure{margin:0;border:1px solid var(--line);border-radius:8px;background:repeating-conic-gradient(#f0f2f6 0 25%,#fff 0 50%) 50%/18px 18px;padding:12px;min-width:0}.comparison img{width:100%;height:200px;object-fit:contain;background:transparent}.comparison figcaption{font-size:12px;text-align:center;color:#687a93;line-height:1.7;margin-top:7px;background:#ffffffdd;padding:5px;border-radius:5px}.output-item{padding:15px}.output-item a{padding:8px 12px;border:1px solid #cedafa;border-radius:6px;background:#f3f6ff;white-space:nowrap}.run-summary{font-size:12px;color:#6e7c91;margin-top:10px}.error-list{padding:14px;background:#fff5ed;color:#9b532b;font-size:13px;line-height:1.8;border-radius:8px}button:disabled{cursor:not-allowed}.hint input[type=checkbox]{margin-right:8px}.loading-line{font-size:13px;color:#6f83a2;padding:18px 0}.work-heading{margin-bottom:20px}footer{line-height:1.7;flex-wrap:wrap}#message{word-break:break-word}.tool-open:focus-visible{outline-offset:-4px}.help-note{font-size:12px;color:#708096;margin-top:12px;line-height:1.8}.help-note strong{font-weight:500;color:#455e85}
@media(min-width:1450px){.tool-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1050px){.layout{grid-template-columns:178px 1fr}main{padding:29px 24px 0}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.intro-badge{display:none}h1{font-size:26px}}
@media(max-width:650px){header{height:auto;min-height:66px;padding:12px 16px;display:grid;grid-template-columns:1fr auto auto;gap:8px}.brand{font-size:22px;gap:8px}.brand-mark{width:33px;height:33px;font-size:20px}.brand-sub,.header-note{display:none}#home-top{margin:0;padding:8px 5px;font-size:12px;white-space:nowrap}#bookmark{padding:8px 9px;font-size:12px;white-space:nowrap}.layout{display:block}aside{padding:10px 12px}.nav-button{padding:9px 11px;flex-shrink:0}.nav-button:last-child{margin:0;border:0;font-size:13px}.nav-button.active{box-shadow:none}.local-note{display:none}main{padding:24px 16px 0}.intro{padding:0}h1{font-size:25px}.trust-row{gap:12px;font-size:11px;margin-top:14px}.sub{font-size:13px;max-width:350px}.search{margin:21px 0 12px}.quick-filters{gap:2px;margin-bottom:22px}.quick-filters button{padding:8px 10px;font-size:12px}#clear-history{padding:8px 2px;font-size:11px}.tool-grid{gap:10px}.tool-open{padding:16px 13px}.tool-card{min-height:158px}.tool-card h3{font-size:15px}.tool-card p{font-size:12px}.card-top{gap:8px;margin-bottom:14px}.tag{font-size:10px}.star-button{right:3px;top:8px;font-size:15px;padding:6px}.tool-icon{width:30px;height:30px}.tool-icon svg{width:18px;height:18px}.work-surface{padding:16px}.work-heading h1{font-size:23px}.comparison img{height:145px}.comparison{gap:7px}.comparison figure{padding:7px}.file-list,.page-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.file-tile img{height:100px}.bottom-note{padding:15px}.bottom-note strong{font-size:12px}.bottom-note p{font-size:11px}.field{min-width:125px}.intro h1{letter-spacing:-.5px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}