:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f1f3f9;--border: #e4e7ef;--border-strong: #d0d5e0;--text: #101828;--text-2: #475467;--text-3: #98a2b3;--primary: #4f46e5;--primary-strong: #4338ca;--primary-soft: #eef2ff;--accent: #f59e0b;--accent-soft: #fffaeb;--success: #12b76a;--success-soft: #ecfdf3;--danger: #f04438;--danger-soft: #fef3f2;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);--shadow-md: 0 4px 12px rgba(16, 24, 40, .08);--font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;--mono: "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-strong)}img{max-width:100%}.container{max-width:1080px;margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;z-index:50;background:#ffffffeb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header .container{display:flex;align-items:center;gap:28px;height:60px}.logo{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}.logo:hover{color:var(--text)}.logo-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center}.logo small{font-size:12px;font-weight:500;color:var(--text-3)}.site-nav{display:flex;gap:4px;margin-left:auto;flex-wrap:nowrap}.site-nav a{padding:6px 12px;border-radius:8px;color:var(--text-2);font-size:14px;font-weight:500;white-space:nowrap}.site-nav a:hover{background:var(--surface-2);color:var(--text)}.site-nav a.active{background:var(--primary-soft);color:var(--primary-strong)}.nav-toggle{display:none;margin-left:auto;border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:6px 10px;font-size:14px;color:var(--text-2);cursor:pointer}@media (max-width: 860px){.nav-toggle{display:block}.site-nav{display:none;position:absolute;top:60px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--border);flex-direction:column;padding:10px 20px 16px;gap:2px}.site-nav.open{display:flex}.site-nav a{padding:10px 12px}}.site-footer{margin-top:64px;background:var(--surface);border-top:1px solid var(--border);padding:36px 0 28px;color:var(--text-2);font-size:13.5px}.footer-grid{display:flex;gap:48px;flex-wrap:wrap}.footer-brand{max-width:300px}.footer-brand p{margin-top:10px;color:var(--text-3);font-size:13px}.footer-col h4{font-size:13px;color:var(--text);margin-bottom:10px}.footer-col a{display:block;color:var(--text-2);padding:3px 0;font-size:13.5px}.footer-col a:hover{color:var(--primary)}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--text-3);font-size:12.5px}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:500;line-height:1.6}.badge-local{background:var(--success-soft);color:#05603a}.badge-cloud{background:var(--primary-soft);color:var(--primary-strong)}.badge-free{background:var(--accent-soft);color:#b54708}.badge-new{background:var(--danger-soft);color:#b42318}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 18px;border-radius:10px;font-size:14px;font-weight:500;font-family:var(--font);border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-strong);color:#fff}.btn-secondary{background:var(--surface);border-color:var(--border-strong);color:var(--text)}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.btn-ghost{background:transparent;color:var(--text-2)}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-danger{background:var(--surface);border-color:var(--border-strong);color:var(--danger)}.btn-danger:hover{border-color:var(--danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:5px 12px;font-size:13px;border-radius:8px}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap}.hero{padding:64px 0 40px;text-align:center}.hero h1{font-size:34px;font-weight:700;letter-spacing:-.5px}.hero h1 em{font-style:normal;color:var(--primary)}.hero p{margin:14px auto 0;max-width:620px;color:var(--text-2);font-size:16px}.hero-badges{margin-top:18px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.home-section{margin-top:44px}.home-section>header{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}.home-section h2{font-size:19px;font-weight:700}.home-section .section-desc{color:var(--text-3);font-size:13.5px}.tool-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.tool-card{display:flex;gap:13px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;transition:border-color .15s,box-shadow .15s;color:var(--text)}.tool-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);color:var(--text)}.tool-icon{width:42px;height:42px;border-radius:11px;flex:none;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font-size:20px}.tool-card-body{min-width:0}.tool-card-body h3{font-size:15px;font-weight:600}.tool-card-body p{font-size:13px;color:var(--text-3);margin-top:2px}.tool-card-tags{margin-top:8px;display:flex;gap:6px;flex-wrap:wrap}.tool-page{padding:36px 0 8px}.tool-hero{margin-bottom:22px}.tool-hero h1{font-size:27px;font-weight:700;letter-spacing:-.4px}.tool-hero .tool-desc{color:var(--text-2);margin-top:8px;max-width:720px;font-size:15px}.tool-hero .tool-badges{margin-top:12px;display:flex;gap:6px;flex-wrap:wrap}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm)}.panel+.panel{margin-top:14px}.panel-title{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:12px;display:flex;align-items:center;gap:8px}.panel-title .spacer{margin-left:auto}.dropzone{border:1.5px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--surface);padding:40px 20px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone.dragover{border-color:var(--primary);background:var(--primary-soft)}.dropzone .dz-icon{font-size:30px}.dropzone .dz-title{font-weight:600;margin-top:8px}.dropzone .dz-hint{color:var(--text-3);font-size:13px;margin-top:4px}.file-list{display:flex;flex-direction:column;gap:8px}.file-row{display:flex;align-items:center;gap:10px;background:var(--surface-2);border-radius:var(--radius-md);padding:9px 12px;font-size:13.5px}.file-row .f-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-row .f-size{color:var(--text-3);font-size:12.5px;white-space:nowrap}.file-row .f-actions{display:flex;gap:4px}.icon-btn{border:none;background:transparent;cursor:pointer;color:var(--text-3);padding:3px 6px;border-radius:6px;font-size:13px}.icon-btn:hover{background:var(--surface);color:var(--text)}.icon-btn:disabled{opacity:.35;cursor:not-allowed}.result-list{display:flex;flex-direction:column;gap:8px}.result-row{display:flex;align-items:center;gap:10px;background:var(--success-soft);border-radius:var(--radius-md);padding:10px 12px;font-size:13.5px}.result-row .r-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.result-row .r-meta{color:var(--text-3);font-size:12.5px;white-space:nowrap}.result-empty{color:var(--text-3);font-size:13.5px;text-align:center;padding:18px 0}.progress{height:8px;background:var(--surface-2);border-radius:999px;overflow:hidden}.progress>div{height:100%;background:var(--primary);border-radius:999px;transition:width .3s;width:0}.progress-label{display:flex;justify-content:space-between;font-size:12.5px;color:var(--text-2);margin-bottom:6px}.field{margin-bottom:14px}.field>label{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:6px}.field .hint{font-size:12px;color:var(--text-3);margin-top:4px}.fields{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.field-label{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:6px}.field-hint{display:block;font-size:12px;color:var(--text-3);margin-top:4px}.fields select,.fields input[type=number]{width:100%;padding:8px 10px;border:1px solid var(--border-strong);border-radius:var(--radius-md);background:var(--surface);color:var(--text);font-size:14px}.input,.select,.textarea{width:100%;padding:8px 11px;border:1px solid var(--border-strong);border-radius:var(--radius-md);font-size:14px;font-family:var(--font);color:var(--text);background:var(--surface)}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.textarea{min-height:120px;resize:vertical;font-family:var(--mono);font-size:13px}.field-row{display:flex;gap:12px;flex-wrap:wrap}.field-row>*{flex:1;min-width:160px}input[type=range]{width:100%;accent-color:var(--primary)}input[type=color]{width:42px;height:32px;border:1px solid var(--border-strong);border-radius:8px;padding:2px;background:var(--surface);cursor:pointer}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:16px;flex-wrap:wrap}.tabs button{border:none;background:transparent;cursor:pointer;padding:8px 14px;font-size:14px;font-weight:500;color:var(--text-2);border-bottom:2px solid transparent;margin-bottom:-1px;font-family:var(--font)}.tabs button:hover{color:var(--text)}.tabs button.active{color:var(--primary);border-bottom-color:var(--primary)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;align-items:center}.actions .grow{flex:1}.toast-wrap{position:fixed;top:72px;right:20px;z-index:100;display:flex;flex-direction:column;gap:8px}.toast{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:10px 16px;font-size:13.5px;max-width:340px;animation:toast-in .18s ease-out}.toast-success{border-left-color:var(--success)}.toast-error{border-left-color:var(--danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}.tool-seo{margin-top:40px;color:var(--text-2);font-size:14.5px}.tool-seo h2{font-size:19px;color:var(--text);margin:26px 0 10px}.tool-seo h3{font-size:15.5px;color:var(--text);margin:18px 0 8px}.tool-seo p{margin-bottom:10px}.tool-seo ul,.tool-seo ol{padding-left:22px;margin-bottom:12px}.tool-seo li{margin-bottom:5px}.tool-seo details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;margin-bottom:8px}.tool-seo summary{cursor:pointer;font-weight:600;color:var(--text);font-size:14px}.tool-seo details[open] summary{margin-bottom:8px}.canvas-stage{background:repeating-conic-gradient(var(--surface-2) 0% 25%,var(--surface) 0% 50%) 0 0 / 18px 18px;border-radius:var(--radius-md);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;padding:16px;overflow:auto;min-height:200px}.canvas-stage canvas{max-width:100%;height:auto;box-shadow:var(--shadow-md);border-radius:4px}.annot-tools{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.annot-tools .tool-btn{border:1px solid var(--border-strong);background:var(--surface);border-radius:8px;padding:5px 11px;font-size:13px;cursor:pointer;color:var(--text-2);font-family:var(--font)}.annot-tools .tool-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.calc{max-width:340px;margin:0 auto}.calc-screen{background:var(--text);color:#fff;border-radius:var(--radius-md);padding:18px 16px;text-align:right;font-family:var(--mono)}.calc-screen .calc-expr{font-size:13px;color:#98a2b3;min-height:20px;word-break:break-all}.calc-screen .calc-value{font-size:30px;font-weight:600;margin-top:4px;word-break:break-all}.calc-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.calc-keys button{border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-md);padding:13px 0;font-size:16px;cursor:pointer;font-family:var(--font);color:var(--text)}.calc-keys button:hover{background:var(--surface-2)}.calc-keys button.op{color:var(--primary);font-weight:600}.calc-keys button.eq{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}.calc-keys button.eq:hover{background:var(--primary-strong)}.calc-history{margin-top:14px;font-size:13px;color:var(--text-3);max-height:120px;overflow:auto}.calc-history div{padding:3px 0;border-bottom:1px dashed var(--border);font-family:var(--mono)}#all-tools{scroll-margin-top:72px}.hub-page .hero{padding:52px 0 24px}.hub-page .hero h1{font-size:32px}.hub-page .hero p{max-width:780px;font-size:15px}.hub-jump{margin-top:20px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.hub-jump a{padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text-2);font-size:13px;text-decoration:none;transition:border-color .15s,color .15s}.hub-jump a:hover{border-color:var(--primary);color:var(--primary)}.home-section{scroll-margin-top:76px}.section-count{margin-left:auto;flex:none;font-size:12px;color:var(--text-3);border:1px solid var(--border);border-radius:999px;padding:2px 10px}.lang-btn{flex:none;padding:6px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px;font-weight:600;cursor:pointer;transition:border-color .15s,color .15s}.lang-btn:hover{border-color:var(--primary);color:var(--primary)}.bg-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px;max-height:360px;overflow:auto;padding:2px}.bg-card{cursor:pointer;border:2px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--surface-2);transition:border-color .15s,box-shadow .15s,transform .15s}.bg-card:hover{border-color:var(--primary);box-shadow:0 2px 10px #4f46e51f;transform:translateY(-1px)}.bg-card.active{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.bg-card img{display:block;width:100%;height:82px;object-fit:cover}.bg-name{padding:5px 7px;font-size:12px;line-height:1.25;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.comp-canvas{display:block;width:100%;height:auto;max-height:60vh;object-fit:contain;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface-2);touch-action:none;cursor:grab}.comp-canvas:active{cursor:grabbing}.sim-list{display:flex;flex-direction:column;gap:10px}.sim-card{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface)}.sim-card:hover{border-color:var(--primary);background:var(--surface-2)}.sim-card p{font-size:13px;line-height:1.45;color:var(--text-2)}.sim-bar{display:inline-block;width:96px;height:6px;border-radius:3px;background:var(--surface-2);overflow:hidden;vertical-align:middle}.sim-bar-in{display:block;height:100%;background:var(--primary);border-radius:3px}.sim-card p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.label-maker{display:grid;grid-template-columns:300px minmax(0,1fr) 290px;gap:14px;align-items:start}@media (max-width: 1080px){.label-maker{grid-template-columns:1fr}}.label-main{min-width:0}.label-canvas-wrap{background:repeating-conic-gradient(#dcdce4,#dcdce4 25%,#f2f2f6 0%,#f2f2f6 50%) 50% / 20px 20px;border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;display:flex;justify-content:center}.label-canvas{width:100%;max-width:560px;height:auto;border:1px solid var(--border);box-shadow:0 2px 10px #00000014;touch-action:none;cursor:crosshair}.label-props{min-height:60px}.prop-title{font-weight:600;font-size:13px;color:var(--text-2);margin:4px 0 6px}.prop-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.prop-row{display:flex;align-items:center;gap:6px;font-size:13px}.prop-row>span{color:var(--text-2);white-space:nowrap}.prop-col{display:flex;flex-direction:column;gap:4px;font-size:13px;margin-top:8px}.prop-col>span{color:var(--text-2)}.label-side .btn-row{gap:8px!important}.label-side .panel-title+.btn-row{margin-top:2px}.label-side .prop-title{margin-top:14px!important}.label-fold{margin-top:12px;border-top:1px solid var(--border);padding-top:8px}.label-fold>summary{cursor:pointer;font-weight:600;font-size:13px;color:var(--text-2);list-style:none;display:flex;align-items:center;gap:6px}.label-fold>summary::-webkit-details-marker{display:none}.label-fold>summary:before{content:"▸";font-size:11px;transition:transform .15s}.label-fold[open]>summary:before{content:"▾"}.label-fold>summary:hover{color:var(--primary)}.hint-warn{color:#b54708;background:var(--accent-soft, #fff4e5);border:1px solid #f0c088;border-radius:6px;padding:6px 8px;margin-top:8px}.beauty-grid{display:grid;grid-template-columns:280px minmax(0,1fr) 300px;gap:14px;align-items:start}@media (max-width: 1080px){.beauty-grid{grid-template-columns:1fr}}.beauty-main{min-width:0}.beauty-canvas-wrap{background:repeating-conic-gradient(#dcdce4,#dcdce4 25%,#f2f2f6 0%,#f2f2f6 50%) 50% / 20px 20px;border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;display:flex;justify-content:center;align-items:center;min-height:320px}.beauty-canvas{max-width:100%;max-height:70vh;width:auto;height:auto;border:1px solid var(--border);box-shadow:0 2px 10px #00000014;touch-action:none;cursor:crosshair}.beauty-slider{margin-bottom:10px}.beauty-slider .prop-row{justify-content:space-between;margin-bottom:2px}.beauty-slider input[type=range]{accent-color:var(--primary)}.hint-slot{transition:color .2s}.beauty-grid .btn-ghost{border:1px solid var(--border)}