#progress-bar{background:linear-gradient(90deg,var(--accent),#00d4ff99);z-index:9999;width:0%;height:3px;transition:width .1s linear;position:fixed;top:0;left:0;box-shadow:0 0 10px #00d4ff80}#art-hero{background-color:#0000;background-image:repeating-linear-gradient(-50deg,#00d4ff06,#00d4ff06 3px,#0000 3px 28px),linear-gradient(145deg,#0c2846 0,#071520 60%,#050d1a 100%);background-position:50%;background-repeat:repeat,repeat;background-size:cover;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;align-items:flex-end;height:68vh;min-height:480px;padding-top:83px;display:flex;position:relative;overflow:hidden}#art-hero.has-img .art-hero-lbl{display:none}#art-hero.has-img .art-hero-vignette{background:linear-gradient(0deg,#050d1af2 0,#050d1a73 50%,#050d1a26 100%)}.art-hero-img{object-fit:cover;z-index:0;width:100%;height:100%;display:block;position:absolute;inset:0}.art-hero-glow,.art-hero-vignette,.art-hero-lbl,.art-hero-content{z-index:1}.art-hero-content{z-index:2}.art-hero-glow{pointer-events:none;background:radial-gradient(at 70% 30%,#00d4ff12 0,#0000 65%);width:60%;height:100%;position:absolute;top:0;right:0}.art-hero-vignette{pointer-events:none;background:linear-gradient(0deg,#050d1aeb 0,#050d1a4d 55%,#0000 100%);position:absolute;inset:0}.art-hero-lbl{color:#ffffff26;letter-spacing:.18em;text-transform:uppercase;white-space:nowrap;font-family:monospace;font-size:11px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.art-hero-content{z-index:2;max-width:860px;padding:0 64px 56px;position:relative}.art-cat{letter-spacing:.22em;text-transform:uppercase;color:var(--accent);align-items:center;gap:10px;margin-bottom:18px;font-size:10px;font-weight:500;display:inline-flex}.art-cat:before{content:"";background:var(--accent);width:24px;height:1px;display:block}.art-hero-title{color:#fff;letter-spacing:-.02em;margin-bottom:24px;font-family:Playfair Display,serif;font-size:clamp(32px,4.5vw,58px);font-weight:900;line-height:1.08}.art-hero-meta{color:#ffffff73;align-items:center;gap:20px;font-size:13px;display:flex}.art-hero-meta .sep{background:#00d4ff80;border-radius:50%;flex-shrink:0;width:3px;height:3px}.art-layout{grid-template-columns:1fr 268px;align-items:start;gap:72px;max-width:1180px;margin:0 auto;padding:72px 64px 100px;display:grid}.toc{position:sticky;top:100px}.toc-label{letter-spacing:.22em;text-transform:uppercase;color:#4a5c7299;margin-bottom:16px;font-size:10px;font-weight:500}.toc-list{flex-direction:column;list-style:none;display:flex}.toc-list a{color:#4a5c72a6;border-left:1px solid #e2e8f0;padding:8px 0 8px 16px;font-size:13px;font-weight:400;text-decoration:none;transition:color .2s,border-color .2s,padding-left .2s;display:block}.toc-list a:hover{color:var(--dark);border-left-color:#00d4ff66}.toc-list a.act{color:var(--accent);border-left-color:var(--accent);padding-left:20px;font-weight:500}.toc-share{border-top:1px solid #e8eef4;margin-top:32px;padding-top:24px}.toc-share-lbl{letter-spacing:.2em;text-transform:uppercase;color:#4a5c7280;margin-bottom:12px;font-size:10px;font-weight:500}.share-btn{background:var(--off);color:var(--muted);cursor:pointer;letter-spacing:.08em;border:0;align-items:center;gap:8px;margin-bottom:6px;margin-right:6px;padding:9px 16px;font-family:DM Sans,sans-serif;font-size:12px;font-weight:500;transition:background .2s,color .2s;display:inline-flex}.share-btn:hover{color:var(--dark);background:#e2edf7}.aff-box{background:linear-gradient(145deg,#f6fcff,#eaf6fb);border:1px solid #00d4ff33;margin-top:28px;padding:22px}.aff-box-lbl{letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:12px;font-size:9px;font-weight:500}.aff-product{color:var(--dark);margin-bottom:6px;font-family:Playfair Display,serif;font-size:15px;font-weight:700;line-height:1.3}.aff-desc{color:var(--muted);margin-bottom:14px;font-size:12px;font-weight:300;line-height:1.6}.aff-btn{text-align:center;background:var(--accent);color:var(--deep);letter-spacing:.1em;text-transform:uppercase;padding:11px 16px;font-size:12px;font-weight:500;text-decoration:none;transition:opacity .2s;display:block}.aff-btn:hover{opacity:.85}.aff-hint{color:#4a5c7273;text-align:center;margin-top:8px;font-size:10px}.art-body{min-width:0}.art-intro{color:var(--muted);border-bottom:1px solid #e8eef4;margin-bottom:44px;padding-bottom:36px;font-size:20px;font-weight:300;line-height:1.8}.fish-box{background:linear-gradient(145deg,#071825,#0a2540);border:1px solid #00d4ff2e;margin:44px 0;padding:0;position:relative;overflow:hidden}.fish-box:before{content:"";background:linear-gradient(90deg,var(--accent),#00d4ff4d);height:2px;position:absolute;top:0;left:0;right:0}.fish-box-head{border-bottom:1px solid #00d4ff1a;justify-content:space-between;align-items:center;padding:28px 32px 22px;display:flex}.fish-box-name{color:#fff;font-family:Playfair Display,serif;font-size:22px;font-weight:700}.fish-box-lat{color:#ffffff61;margin-top:3px;font-size:13px;font-style:italic}.fish-box-diff{flex-direction:column;align-items:flex-end;gap:4px;display:flex}.diff-lbl{letter-spacing:.2em;text-transform:uppercase;color:#ffffff4d;font-size:9px}.diff-dots{gap:4px;display:flex}.diff-dot{background:#ffffff26;border-radius:50%;width:8px;height:8px}.diff-dot.on{background:var(--accent)}.fish-box-grid{grid-template-columns:repeat(3,1fr);display:grid}.fish-param{border-bottom:1px solid #00d4ff14;border-right:1px solid #00d4ff14;padding:20px 32px}.fish-param:nth-child(3n){border-right:none}.fish-param:nth-child(n+4){border-bottom:none}.param-lbl{letter-spacing:.2em;text-transform:uppercase;color:#ffffff47;margin-bottom:5px;font-size:9px}.param-val{color:#fff;font-size:15px;font-weight:500}.param-val em{color:var(--accent);font-style:normal}.art-section{margin-bottom:48px}.art-h2{color:var(--dark);margin:52px 0 18px;padding-top:8px;font-family:Playfair Display,serif;font-size:30px;font-weight:700;line-height:1.2}.art-p{color:#2d3e52;margin-bottom:22px;font-size:17px;font-weight:300;line-height:1.85}.art-p strong{color:var(--dark);font-weight:500}.callout{border-left:2px solid var(--accent);background:#00d4ff0a;margin:32px 0;padding:20px 26px}.callout p{color:var(--muted);margin:0;font-size:16px;line-height:1.75}.art-img-ph{aspect-ratio:16/9;background:repeating-linear-gradient(45deg,#d6e2ec,#d6e2ec 10px,#e3edf5 10px 22px);justify-content:center;align-items:center;width:100%;margin:36px 0;display:flex}.art-img-ph span{color:#32507859;letter-spacing:.1em;text-transform:uppercase;font-family:monospace;font-size:11px}.tip-list{flex-direction:column;gap:12px;margin:20px 0 32px;list-style:none;display:flex}.tip-list li{color:#2d3e52;gap:14px;font-size:16px;font-weight:300;line-height:1.65;display:flex}.tip-list li:before{content:"";background:var(--accent);border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:8px;display:block}.tool-cta-inline{background:linear-gradient(135deg,#050d1a,#0a2540);border:1px solid #00d4ff33;align-items:center;gap:20px;margin:36px 0;padding:24px 28px;display:flex}.tool-cta-inline-text{flex:1}.tool-cta-inline-label{letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;font-size:10px;font-weight:500}.tool-cta-inline-title{color:#fff;font-family:Playfair Display,serif;font-size:18px;font-weight:700;line-height:1.3}.tool-cta-inline-btn{border:1px solid var(--accent);color:var(--accent);letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;background:0 0;align-items:center;gap:10px;padding:13px 24px;font-size:12px;font-weight:500;text-decoration:none;transition:background .3s,color .3s;display:inline-flex}.tool-cta-inline-btn:hover{background:var(--accent);color:var(--deep)}.art-body>p:first-of-type{color:var(--muted);border-bottom:1px solid #e8eef4;margin-bottom:44px;padding-bottom:36px;font-size:20px;font-weight:300;line-height:1.8}.art-body h2{color:var(--dark);margin:52px 0 18px;padding-top:8px;font-family:Playfair Display,serif;font-size:30px;font-weight:700;line-height:1.2}.art-body p{color:#2d3e52;margin-bottom:22px;font-size:17px;font-weight:300;line-height:1.85}.art-body p strong{color:var(--dark);font-weight:500}.art-body a{color:#0a76a6;border-bottom:1px solid #0a76a659;text-decoration:none;transition:color .2s,border-color .2s}.art-body a:hover{color:#085a82;border-bottom-color:#085a82}.art-body ul{flex-direction:column;gap:12px;margin:20px 0 32px;padding:0;list-style:none;display:flex}.art-body ul li{color:#2d3e52;padding-left:20px;font-size:16px;font-weight:300;line-height:1.65;position:relative}.art-body ul li:before{content:"";background:var(--accent);border-radius:50%;flex-shrink:0;width:6px;height:6px;position:absolute;top:9px;left:0}.art-body ul li strong{color:var(--dark);font-weight:500}.art-body blockquote{border-left:2px solid var(--accent);background:#00d4ff0a;margin:32px 0;padding:20px 26px}.art-body blockquote p{color:var(--muted);margin:0;font-size:16px;line-height:1.75}.art-body blockquote.product-card{border:1px solid #00d4ff2e;border-left:3px solid var(--accent);background:linear-gradient(145deg,#f8fcff 0,#eef7fc 100%);border-radius:8px;grid-template-columns:170px 1fr;align-items:start;gap:24px;margin:36px 0;padding:24px 28px;display:grid;box-shadow:0 1px 3px #001e3c0a}.art-body blockquote.product-card:not(:has(.product-card-img)){grid-template-columns:1fr}.art-body blockquote.product-card .product-card-img{object-fit:contain;background:#fff;border:1px solid #001e3c0f;border-radius:6px;width:100%;max-width:170px;height:170px;padding:10px}.art-body blockquote.product-card p{color:var(--dark);margin:0;font-size:15px;line-height:1.7}.art-body blockquote.product-card p>strong:first-child{color:var(--dark);letter-spacing:-.01em;margin-bottom:6px;font-family:Playfair Display,serif;font-size:17px;font-weight:700;display:block}.art-body .shop-btn{letter-spacing:.01em;white-space:nowrap;border-radius:5px;margin-top:12px;margin-right:8px;padding:8px 16px;font-size:13px;font-weight:600;transition:transform .15s,box-shadow .15s;display:inline-block;text-decoration:none!important}.art-body .shop-btn:hover{transform:translateY(-1px);box-shadow:0 3px 10px #001e3c24}.art-body .shop-btn-zooroyal{background:#6cbf3f;color:#fff!important}.art-body .shop-btn-zooroyal:hover{background:#5fa936}.art-body .shop-btn-amazon{background:#f90;color:#1a1a1a!important}.art-body .shop-btn-amazon:hover{background:#e88800}.art-body .shop-btn-aquasabi{background:#0a2540;color:#fff!important}.art-body .shop-btn-aquasabi:hover{background:#143656}.art-body table{border-collapse:collapse;width:100%;margin:28px 0 36px;font-size:14px}.art-body th{background:var(--deep);color:#ffffffbf;letter-spacing:.14em;text-transform:uppercase;text-align:left;border-bottom:1px solid #00d4ff26;padding:12px 16px;font-size:10px;font-weight:500}.art-body td{color:#2d3e52;vertical-align:top;border-bottom:1px solid #e8eef4;padding:12px 16px;font-weight:300;line-height:1.5}.art-body tr:last-child td{border-bottom:none}.art-body tr:nth-child(2n) td{background:var(--off)}.art-body ol{counter-reset:ol-counter;flex-direction:column;gap:10px;margin:20px 0 32px;padding:0;list-style:none;display:flex}.art-body ol li{color:#2d3e52;counter-increment:ol-counter;gap:16px;font-size:16px;font-weight:300;line-height:1.65;display:flex}.art-body ol li:before{content:counter(ol-counter);background:var(--accent);width:24px;min-width:24px;height:24px;color:var(--deep);border-radius:50%;justify-content:center;align-items:center;margin-top:2px;font-size:11px;font-weight:700;display:flex}.faq-item{border-bottom:1px solid #e8eef4}.faq-item:first-child{border-top:1px solid #e8eef4}.faq-btn{cursor:pointer;text-align:left;width:100%;color:var(--dark);background:0 0;border:0;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;font-family:DM Sans,sans-serif;font-size:16px;font-weight:500;line-height:1.4;display:flex}.faq-btn:hover{color:var(--accent)}.faq-icon{width:24px;min-width:24px;height:24px;color:var(--muted);border:1px solid #dde4ee;border-radius:50%;justify-content:center;align-items:center;font-size:14px;transition:transform .3s,background .2s,border-color .2s;display:flex}.faq-item.open .faq-icon{color:var(--accent);background:#00d4ff14;border-color:#00d4ff4d;transform:rotate(45deg)}.faq-body{max-height:0;transition:max-height .38s cubic-bezier(.4,0,.2,1);overflow:hidden}.faq-body-inner{color:#2d3e52;padding:0 0 20px;font-size:16px;font-weight:300;line-height:1.8}.faq-body-inner a{color:#0a76a6;border-bottom:1px solid #0a76a659;text-decoration:none}.faq-body-inner a:hover{color:#085a82}#related{background:var(--off);padding:80px 64px}.rel-title{color:var(--dark);margin-bottom:36px;font-family:Playfair Display,serif;font-size:28px;font-weight:700}.rel-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.rel-card{background:var(--white);cursor:pointer;color:inherit;text-decoration:none;transition:transform .4s cubic-bezier(.25,.46,.45,.94),box-shadow .4s;display:block;overflow:hidden;box-shadow:0 2px 12px #0000000d}.rel-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px #002d5a17}.rel-img{aspect-ratio:16/10;background:repeating-linear-gradient(45deg,#d6e2ec,#d6e2ec 10px,#e3edf5 10px 22px);justify-content:center;align-items:center;width:100%;display:flex;position:relative;overflow:hidden}.rel-img span{color:#3250784d;letter-spacing:.1em;text-transform:uppercase;z-index:1;font-family:monospace;font-size:9px;position:relative}.rel-img-inner{width:100%;height:100%;transition:transform .55s cubic-bezier(.25,.46,.45,.94)}.rel-card:hover .rel-img-inner{transform:scale(1.05)}.rel-body{padding:22px 24px 20px}.rel-tag{letter-spacing:.15em;text-transform:uppercase;color:var(--accent);background:#00d4ff12;margin-bottom:10px;padding:3px 9px;font-size:10px;font-weight:500;display:inline-block}.rel-title-card{color:var(--dark);margin-bottom:10px;font-family:Playfair Display,serif;font-size:17px;font-weight:700;line-height:1.35}.rel-meta{color:#4a5c7280;font-size:12px}@media (width<=768px){#art-hero{align-items:flex-end;height:56vh;min-height:360px}.art-hero-content{max-width:100%;padding:0 20px 36px}.art-hero-title{margin-bottom:16px;font-size:clamp(26px,7vw,40px)}.art-hero-meta{flex-wrap:wrap;gap:12px;font-size:12px}.art-layout{grid-template-columns:1fr;gap:0;padding:40px 20px 64px}.toc{display:none}.fish-box-grid{grid-template-columns:1fr 1fr}.fish-param{padding:14px 18px}.fish-box-head{padding:20px 18px 16px}.fish-box-name{font-size:18px}.art-body h2{margin:40px 0 14px;font-size:24px}.art-body>p:first-of-type{margin-bottom:32px;padding-bottom:28px;font-size:17px}.art-body p{font-size:16px}.art-body table{-webkit-overflow-scrolling:touch;white-space:nowrap;display:block;overflow-x:auto}.art-body blockquote{margin:24px 0;padding:16px 18px}.art-body blockquote.product-card{grid-template-columns:1fr;padding:18px 18px 20px}.art-body blockquote.product-card .product-card-img{max-width:140px;height:140px;margin:0 auto}#related{padding:48px 20px}.rel-grid{grid-template-columns:1fr;gap:14px}.rel-title{font-size:22px}}@media (width<=480px){.fish-box-grid{grid-template-columns:1fr}.art-hero-title{font-size:clamp(22px,7vw,32px)}}.rel-img img{object-fit:cover;width:100%;height:100%;transition:transform .5s cubic-bezier(.25,.46,.45,.94);display:block;position:absolute;inset:0}.rel-card:hover .rel-img img{transform:scale(1.04)}