*{box-sizing:border-box}
:root{--deep-blue:#0a1628;--ocean:#0f2847;--teal:#0d9488;--cyan:#06b6d4;--coral:#f4724c;--gold:#f0a500;--surface:#ffffff;--surface-alt:#f5f8fc;--text:#1a1f2e;--muted:#5a6275;--muted2:#8890a4;--line:#e5ecf4;--line2:#d7e1ec;--accent:#0d9488;--danger:#e05a4f;--shadow-sm:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.06);--shadow-md:0 4px 16px rgba(0,0,0,.06),0 2px 6px rgba(0,0,0,.04);--shadow-lg:0 12px 40px rgba(0,0,0,.08),0 4px 12px rgba(0,0,0,.04);--radius:16px}
html,body{margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(160deg,#f0f5fb 0%,#e8f0f8 30%,#f8fafc 60%,#fefefe 100%);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:inherit}
.sidebar{width:264px;position:fixed;left:0;top:0;height:100vh;display:flex;flex-direction:column;background:#ffffff;border-right:1px solid var(--line);padding:16px 14px;overflow-y:auto;z-index:20}
.brand{display:flex;align-items:center;gap:7px;padding:2px 8px 14px;border-bottom:1px solid var(--line);min-width:0}
.brand-logo{flex:0 0 auto;line-height:0}
.brand-logo img{width:30px;height:30px;border-radius:8px;display:block;object-fit:contain}
.brand-name{color:var(--deep-blue);font-size:13.5px;font-weight:700;text-decoration:none;white-space:nowrap}
.brand-sep{color:#c2ccd9;font-size:12px}
.brand-page{color:var(--teal);font-size:13.5px;font-weight:700;text-decoration:none;white-space:nowrap}
.brand-name:hover,.brand-page:hover{opacity:.8}
.search{margin:12px 4px 4px}
.search input{width:100%;background:var(--surface);border:1px solid var(--line2);border-radius:9px;padding:8px 11px;font-size:12.5px;color:var(--text);outline:none;font-family:inherit}
.search input:focus{border-color:rgba(13,148,136,.5);box-shadow:0 0 0 3px rgba(13,148,136,.1)}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.nav-group{display:flex;flex-direction:column;gap:3px;margin-top:10px}
.nav-label{color:var(--muted2);font-size:10px;letter-spacing:1.5px;text-transform:uppercase;padding:0 10px 3px}
.nav-item{display:flex;align-items:center;width:100%;border:1px solid transparent;background:none;color:var(--muted);padding:8px 10px;border-radius:9px;cursor:pointer;font-size:13px;text-align:left;text-decoration:none;font-family:inherit}
.nav-item:hover{background:#f1f6fb;color:var(--deep-blue)}
.nav-item.active{background:rgba(13,148,136,.08);border-color:rgba(13,148,136,.22);color:var(--deep-blue);font-weight:600}
.nav-empty{padding:16px 10px;color:var(--muted2);font-size:12.5px;text-align:center}
.main{display:flex;flex-direction:column;margin-left:264px;min-height:100vh}
.main-inner{width:100%;max-width:1000px;margin:0 auto;padding:34px 34px 28px;flex:1;display:flex;flex-direction:column}
.head{margin-bottom:20px}
.head h1{margin:0 0 6px;font-size:24px;letter-spacing:-.4px;font-weight:700;color:var(--deep-blue)}
.head p{margin:0;color:var(--muted);font-size:13px;line-height:1.65;max-width:640px}
.hero{padding:4px 0 10px}
.hero h1{margin:0 0 10px;font-size:30px;line-height:1.2;letter-spacing:-.8px;font-weight:700;color:var(--deep-blue)}
.hero p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.7;max-width:600px}
.group-block{margin-top:24px}
.group-head{margin-bottom:10px}
.group-head h2{font-size:14.5px;margin:0;font-weight:700;color:var(--deep-blue)}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.tool-card{display:flex;flex-direction:column;gap:6px;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-decoration:none;color:var(--text);box-shadow:var(--shadow-sm)}
.tool-card:hover{border-color:rgba(13,148,136,.4);box-shadow:var(--shadow-md)}
.tool-card b{font-size:13.5px;color:var(--deep-blue)}
.tool-card .desc{font-size:12px;color:var(--muted);line-height:1.55}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-md)}
.drop{border:1.5px dashed var(--line2);border-radius:12px;padding:28px 20px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;cursor:pointer;background:#f8fbfe;color:var(--text)}
.drop:hover,.drop.over{border-color:var(--teal);background:#f0fdfa}
.drop-ico{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-size:23px;line-height:1;color:var(--teal);background:rgba(13,148,136,.08);border:1px solid rgba(13,148,136,.2);margin-bottom:2px}
.drop b{font-size:13.5px;font-weight:600;color:var(--deep-blue)}
.drop small{color:var(--muted2);font-size:12px}
.opts{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-top:16px}
.field{display:flex;flex-direction:column;gap:6px;min-width:150px;flex:1}
.field>span{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:8px}
.field>span b{color:var(--teal);font-weight:600}
select,input[type=text],input[type=number],input[type=password],input[type=datetime-local],textarea{width:100%;background:var(--surface);border:1px solid var(--line2);border-radius:9px;color:var(--text);padding:9px 11px;font-size:13px;font-family:inherit;outline:none}
select:focus,input:focus,textarea:focus{border-color:rgba(13,148,136,.55);box-shadow:0 0 0 3px rgba(13,148,136,.1)}
textarea{resize:vertical;min-height:110px;line-height:1.6;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
select{appearance:none;-webkit-appearance:none;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,#8890a4 50%),linear-gradient(135deg,#8890a4 50%,transparent 50%);background-position:calc(100% - 17px) calc(50% - 2px),calc(100% - 12px) calc(50% - 2px);background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:32px}
input::placeholder,textarea::placeholder{color:#a7b1c0}
input[type=range]{width:100%;height:22px;appearance:none;-webkit-appearance:none;background:transparent;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:4px;background:linear-gradient(90deg,var(--teal),var(--cyan))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:#ffffff;margin-top:-6px;border:2px solid var(--surface);box-shadow:0 0 0 1px rgba(13,148,136,.5),0 2px 4px rgba(10,22,40,.15)}
input[type=range]:disabled{opacity:.4;cursor:not-allowed}
input[type=checkbox]{width:16px;height:16px;accent-color:var(--teal);cursor:pointer}
input[type=color]{width:100%;background:var(--surface);border:1px solid var(--line2);border-radius:9px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border-radius:9px;border:1px solid var(--line2);background:var(--surface);color:var(--deep-blue);font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;text-decoration:none;white-space:nowrap;box-shadow:var(--shadow-sm)}
.btn:hover{border-color:#c7d5e4;background:var(--surface-alt)}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn.primary{border-color:transparent;background:linear-gradient(135deg,#0d9488,#06b6d4);color:#ffffff;box-shadow:0 6px 16px rgba(13,148,136,.2)}
.btn.primary:hover{filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--muted);box-shadow:none;border-color:transparent}
.btn.ghost:hover{color:var(--deep-blue);background:var(--surface-alt)}
.hint{margin-top:12px;font-size:12px;color:var(--muted);line-height:1.6}
.hint.err{color:var(--danger)}
.hint b{color:var(--deep-blue);font-weight:600}
.results{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.thumb{aspect-ratio:4/3;background:#f3f7fb repeating-conic-gradient(#eaf1f8 0 25%,#f8fbfe 0 50%) 50%/16px 16px;display:grid;place-items:center;overflow:hidden}
.thumb img{max-width:100%;max-height:100%;object-fit:contain;display:block}
.card-body{padding:9px 10px;display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line)}
.card-body b{font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--deep-blue)}
.card-body span{font-size:11px;color:var(--muted2);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.card-body .dl{align-self:flex-start;margin-top:2px;font-size:11.5px;color:var(--teal);text-decoration:none;border:1px solid rgba(13,148,136,.25);padding:3px 9px;border-radius:7px}
.card-body .dl:hover{background:rgba(13,148,136,.08)}
.actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;align-items:center}
.kv{display:flex;justify-content:space-between;gap:14px;padding:10px 2px;border-bottom:1px solid var(--line);font-size:13px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted);flex:0 0 auto}
.kv b{font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;text-align:right;word-break:break-all;color:var(--deep-blue)}
.copy-row{display:flex;gap:10px;align-items:center;margin-top:10px}
.copy-row input{flex:1}
.swatch{width:100%;height:80px;border-radius:12px;border:1px solid var(--line2);margin-bottom:14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.chip{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:7px 10px}
.chip input{margin:0}
.opts .chip{margin-top:0}
.output-box{background:#f8fafc;border:1px solid var(--line2);border-radius:9px;padding:12px;min-height:100px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.65;white-space:pre-wrap;word-break:break-all;overflow:auto;max-height:420px;color:#23324a}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:var(--surface);border:1px solid rgba(13,148,136,.4);color:var(--deep-blue);font-size:12.5px;padding:9px 18px;border-radius:9px;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;z-index:50}
.toast.show{opacity:1}
.foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);color:var(--muted2);font-size:11.5px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--teal)}
@media(max-width:900px){.sidebar{position:relative;width:100%;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:12px 14px}.main{margin-left:0;min-height:auto}.brand{border-bottom:0;padding:0 4px 6px}.search{margin:8px 0 2px}.nav{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;margin-top:4px}.nav-group{flex-direction:row;margin:0;gap:6px;flex:0 0 auto}.nav-label{display:none}.nav-item{flex:0 0 auto;width:auto;white-space:nowrap;padding:7px 10px}.main-inner{padding:22px 16px 24px}.head h1{font-size:21px}.hero h1{font-size:25px}.results{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.panel{padding:15px}.opts .field{min-width:100%}.split{grid-template-columns:1fr}}