:root{--bg:#f5f7fb;--surface:#fff;--surface2:#f0f4f8;--text:#132238;--muted:#617083;--line:#d9e2ec;--primary:#3157d5;--primary2:#6d4df4;--success:#16855b;--warn:#b7791f;--danger:#c23a4b;--shadow:0 16px 42px rgba(28,44,74,.09);--radius:20px}
[data-theme="dark"]{--bg:#0f1724;--surface:#162132;--surface2:#1c2a3d;--text:#eef4ff;--muted:#a7b6ca;--line:#304158;--primary:#7895ff;--primary2:#a38cff;--shadow:0 18px 46px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}a{color:inherit}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav{height:70px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:22px;font-weight:900;letter-spacing:-.04em}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:white;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 8px 24px rgba(49,87,213,.28)}.nav-links{display:flex;gap:7px;margin-left:auto}.nav-links a,.icon-btn,.lang-link{border:1px solid transparent;border-radius:11px;padding:9px 12px;text-decoration:none;color:var(--muted);font-weight:700;background:none}.nav-links a:hover,.icon-btn:hover,.lang-link:hover{background:var(--surface2);color:var(--text)}.icon-btn{cursor:pointer;font-size:16px}.mobile-menu{display:none}.hero{padding:76px 0 56px;background:radial-gradient(circle at 85% 20%,rgba(109,77,244,.16),transparent 28%),radial-gradient(circle at 10% 70%,rgba(49,87,213,.12),transparent 25%)}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 11px;border-radius:999px;background:color-mix(in srgb,var(--primary) 10%,var(--surface));color:var(--primary);font-size:13px;font-weight:800;border:1px solid color-mix(in srgb,var(--primary) 22%,var(--line))}.hero h1,.tool-hero h1{font-size:clamp(43px,6.7vw,76px);line-height:1.02;letter-spacing:-.055em;margin:17px 0 18px}.hero p,.tool-hero p{font-size:19px;color:var(--muted);max-width:720px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin:27px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border-radius:13px;border:1px solid var(--line);font-weight:800;text-decoration:none;cursor:pointer;font:inherit}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;border-color:transparent}.btn-secondary{background:var(--surface);color:var(--text)}.btn-danger{background:var(--danger);color:white;border-color:transparent}.btn-small{padding:8px 11px;font-size:13px}.privacy-note{font-size:14px!important}.hero-card,.content-card,.panel,.tool-shell,.category-card,.tool-card,.guide-card,.network-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:26px}.sheet-mock{height:320px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface2)}.mock-bar{height:44px;background:var(--surface);display:flex;align-items:center;gap:8px;padding:0 13px;border-bottom:1px solid var(--line)}.mock-dot{width:9px;height:9px;border-radius:50%;background:var(--primary)}.mock-grid{display:grid;grid-template-columns:44px repeat(4,1fr);grid-auto-rows:39px}.mock-grid span{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px;font-size:12px;color:var(--muted)}.mock-grid span:nth-child(5n+1){background:var(--surface);text-align:center}.section{padding:66px 0}.section.alt{background:var(--surface2)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-head h2{font-size:clamp(30px,4.2vw,48px);letter-spacing:-.045em;margin:0}.section-head p{color:var(--muted);margin:6px 0 0}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.tool-card{padding:20px;text-decoration:none;transition:.18s}.tool-card:hover,.category-card:hover,.guide-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--primary) 55%,var(--line))}.tool-card .tool-icon{font-size:28px}.tool-card h3{font-size:18px;margin:9px 0 6px}.tool-card p,.category-card p,.guide-card p{font-size:14px;color:var(--muted);margin:0}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.category-card{display:flex;gap:17px;padding:22px;text-decoration:none}.cat-icon{font-size:31px}.category-card h3{margin:0 0 5px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px}.content-card,.panel{padding:25px}.content-card h2,.panel h3{margin-top:0}.breadcrumbs{padding:18px 0;color:var(--muted);font-size:13px}.breadcrumbs a{text-decoration:none}.tool-hero{padding:40px 0 30px}.tool-hero h1{font-size:clamp(36px,5vw,60px);margin-bottom:10px}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px}.tool-shell{padding:20px;min-height:560px}.local-badge{display:flex;gap:12px;align-items:flex-start;padding:13px;border-radius:14px;background:color-mix(in srgb,var(--success) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--success) 30%,var(--line));margin-bottom:16px}.local-badge span{font-size:13px;color:var(--muted)}.dropzone{border:2px dashed color-mix(in srgb,var(--primary) 45%,var(--line));border-radius:17px;padding:28px;text-align:center;background:color-mix(in srgb,var(--primary) 4%,var(--surface));cursor:pointer}.dropzone.drag{background:color-mix(in srgb,var(--primary) 13%,var(--surface))}.file-input{display:none}.toolbar{display:flex;gap:8px;flex-wrap:wrap;padding:11px 0}.sheet-tabs{display:flex;gap:6px;overflow:auto;padding:8px 0}.sheet-tab{border:1px solid var(--line);background:var(--surface);padding:8px 12px;border-radius:10px;cursor:pointer;white-space:nowrap}.sheet-tab.active{background:var(--primary);color:#fff;border-color:transparent}.grid-wrap{border:1px solid var(--line);border-radius:14px;overflow:hidden;min-height:360px}.statusbar{display:flex;gap:18px;flex-wrap:wrap;padding:10px 2px;color:var(--muted);font-size:13px}.operation-panel{margin-top:15px;padding:17px;border:1px solid var(--line);border-radius:15px;background:var(--surface2)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:13px;font-weight:800}.field input,.field select,.field textarea{width:100%;padding:10px 11px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--text);font:inherit}.field textarea{min-height:110px;resize:vertical}.result-box{margin-top:13px;padding:13px;background:var(--surface);border:1px solid var(--line);border-radius:12px;white-space:pre-wrap;overflow:auto;max-height:330px}.progress{height:9px;border-radius:999px;background:var(--line);overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--primary2));width:0}.notice{padding:12px;border-radius:12px;background:color-mix(in srgb,var(--warn) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--warn) 30%,var(--line));font-size:13px}.success{color:var(--success)}.danger{color:var(--danger)}.chip-row{display:flex;gap:6px;flex-wrap:wrap}.chip{font-size:12px;padding:5px 8px;border-radius:999px;background:var(--surface2);border:1px solid var(--line)}.ad-slot{min-height:110px;margin:25px 0;border:1px dashed var(--line);border-radius:16px;display:grid;place-items:center;color:var(--muted);font-size:12px;background:var(--surface)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.guide-card{padding:19px;text-decoration:none}.network-footer{margin-top:55px;background:#0f1a2a;color:#ecf2ff;padding:52px 0}.network-footer p{color:#aab8ce}.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.network-card{padding:13px;background:#17243a;border-color:#2d405d;color:#fff;text-decoration:none;box-shadow:none}.network-card small{display:block;color:#9eb0c8}.footer-bottom{margin-top:25px;padding-top:18px;border-top:1px solid #30425e;display:flex;justify-content:space-between;gap:15px;color:#aab8ce;font-size:13px}.faq details{padding:13px 0;border-bottom:1px solid var(--line)}.faq summary{font-weight:800;cursor:pointer}.chart-wrap{height:420px;margin-top:15px}.tabulator{border:none!important;background:var(--surface)!important;color:var(--text)!important}.tabulator .tabulator-header,.tabulator-row,.tabulator .tabulator-footer{background:var(--surface)!important;color:var(--text)!important;border-color:var(--line)!important}.tabulator-row:nth-child(even){background:var(--surface2)!important}.tabulator-cell,.tabulator-col{border-color:var(--line)!important}.tabulator .tabulator-header .tabulator-col{background:var(--surface)!important}.tabulator .tabulator-header .tabulator-col.tabulator-sortable:hover{background:var(--surface2)!important}
@media(max-width:900px){.hero-grid,.content-grid,.tool-layout{grid-template-columns:1fr}.tool-grid{grid-template-columns:1fr 1fr}.network-grid{grid-template-columns:1fr 1fr}.side-panel{display:grid;grid-template-columns:1fr 1fr;gap:12px}.nav-links{display:none}.nav-links.mobile-open{display:flex;position:absolute;top:62px;left:10px;right:10px;flex-direction:column;padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.mobile-menu{display:block;margin-left:auto}.hero{padding-top:48px}.sheet-mock{height:270px}}
@media(max-width:580px){.container{width:min(100% - 20px,1180px)}.tool-grid,.category-grid,.guide-grid,.network-grid,.side-panel,.form-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.tool-hero h1{font-size:36px}.hero-card,.content-card,.panel,.tool-shell{padding:16px}.nav{height:62px}.nav .lang-link{padding:7px}.toolbar{overflow-x:auto;flex-wrap:nowrap}.toolbar .btn{white-space:nowrap}.grid-wrap{min-height:330px}.footer-bottom{flex-direction:column}.section{padding:46px 0}}