/* v15.4 accessible hotspots + comparison; isolated from legacy styling */
.v154-expert-section{margin-top:20px;padding:20px;border:1px solid #c9e3dc;border-radius:17px;background:linear-gradient(160deg,#f1faf7,#fff);color:#173a45}
.v154-expert-top{display:flex;align-items:start;justify-content:space-between;gap:12px}
.v154-expert-top h3{font-size:17px;color:#143644;margin:0 0 7px}
.v154-expert-top p{font-size:12px;line-height:1.6;color:#587780;margin:0}
.v154-small-tag{border:1px solid #b5d8d0;border-radius:99px;padding:5px 9px;font-weight:800;font-size:10px;color:#0b796d;white-space:nowrap}
.v154-hotspot-list{display:flex;gap:9px;flex-wrap:wrap;margin:15px 0 13px}
.v154-hotspot-row{background:#fff;border:1px solid #c2dbd4;border-radius:999px;padding:7px 11px 7px 7px;display:inline-flex;align-items:center;gap:7px;min-height:43px;color:#244b52;cursor:pointer;font:inherit;font-size:13px;font-weight:750}
.v154-hotspot-row[aria-pressed="true"]{border-color:#087a70;background:#e2f4ef;color:#085d56}
.v154-hotspot-num{width:27px;height:27px;background:#0e7d73;color:#fff;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:850}
.v154-hotspot-answer{min-height:92px;background:#fff;border:1px solid #e1eeea;border-radius:12px;padding:15px;font-size:13px;line-height:1.7;color:#365a62}
.v154-hotspot-answer strong{font-size:15px;color:#143b48}
.v154-hotspot-answer p{margin:6px 0}
.v154-hotspot-answer small{display:block;color:#75858b;font-size:11px}
.v154-hotspot-hint{color:#5d7278;font-size:11px;line-height:1.6;margin:11px 0 0}
.v154-hotspot-pin{width:38px;height:38px;min-width:38px;border:3px solid #fff;background:#0d8175;color:#fff;border-radius:50%;font-size:15px;font-weight:900;box-shadow:0 3px 12px #123a4080;cursor:pointer;display:grid;place-items:center;transition:transform .15s}
.v154-hotspot-pin[aria-pressed="true"],.v154-hotspot-pin:hover{background:#0c4d55;transform:scale(1.14)}
.v154-hotspot-pin:focus-visible,.v154-hotspot-row:focus-visible,.v154-compare-main :is(button,select,a,input):focus-visible{outline:3px solid #e99b36;outline-offset:3px}
.v154-cross-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:13px 0}
.v154-cross-actions a{display:inline-flex;gap:7px;align-items:center;font-weight:800;font-size:13px;border:1px solid #a2cfc5;padding:12px 18px;border-radius:12px;color:#0a7065;background:#eff8f5;text-decoration:none}
.v154-cross-actions a:hover{background:#e0f2ec}
.v154-home-compare{margin-top:16px;padding:17px 19px;border-radius:16px;background:linear-gradient(125deg,#e3f3ee,#f6fbf8);display:flex;align-items:center;gap:16px;justify-content:space-between}
.v154-home-compare strong{display:block;font-size:16px;color:#12444a}.v154-home-compare span{display:block;font-size:12px;color:#52777d;margin-top:5px}
.v154-home-compare a{color:#fff;background:#0f7a71;padding:11px 17px;border-radius:10px;font-weight:800;font-size:13px;text-decoration:none;white-space:nowrap}
.v154-compare-main{background:#f6faf9;min-height:85vh;color:#123443}
.v154-compare-hero{background:linear-gradient(105deg,#0f3543,#126b65);color:#fff;padding:52px 0 43px}
.v154-compare-hero .v154-breadcrumb{font-size:12px;color:#d3eeeb;margin:0 0 16px}
.v154-compare-hero .v154-breadcrumb a{color:#fff;text-decoration:underline}
.v154-compare-hero h1{font-size:clamp(30px,4vw,50px);color:#fff;letter-spacing:-.055em;margin:12px 0 14px;line-height:1.2}
.v154-compare-hero p{font-size:15px;color:#e4f5f1;max-width:720px;line-height:1.8;margin:0}
.v154-compare-wrap{padding:28px 0 65px}
.v154-tools{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:13px;margin-bottom:18px}
.v154-tools .v154-primary{border:0;background:#0e7e74;color:#fff;font:inherit;font-size:14px;font-weight:850;border-radius:12px;min-height:46px;padding:12px 18px;cursor:pointer}
.v154-tools .v154-primary:disabled{opacity:.5;cursor:wait}
.v154-tools label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:750;color:#2c5860;cursor:pointer}
.v154-tools label input{width:18px;height:18px;accent-color:#0e7e74}
.v154-tools .v154-secondary{border:1px solid #bed8d2;border-radius:12px;background:#fff;padding:12px 14px;cursor:pointer;font:inherit;font-size:13px;font-weight:750;color:#285761}
.v154-compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}
.v154-compare-panel{min-width:0;background:#fff;border:1px solid #dbe8e5;border-radius:20px;padding:20px;box-shadow:0 9px 29px rgba(12,56,64,.055)}
.v154-compare-panel label{display:block;font-size:13px;font-weight:800;color:#294e55;margin-bottom:8px}
.v154-compare-panel select{display:block;width:100%;min-height:46px;padding:11px 33px 11px 12px;border:1px solid #bed7d1;border-radius:12px;background:#fff;color:#123841;font:inherit;font-size:14px}
.v154-model-surface{margin:15px 0 11px;height:360px;position:relative;display:grid;place-items:center;border-radius:14px;overflow:hidden;background:radial-gradient(circle at 50% 35%,#fff,#e9f5f1)}
.v154-model-surface>img{width:78%;max-height:82%;height:auto;object-fit:contain}
.v154-model-mount{position:absolute;inset:0;pointer-events:none}
.v154-model-mount.is-active{pointer-events:auto}
.v154-model-mount model-viewer{display:block;width:100%;height:100%;--poster-color:transparent;background:transparent}
.v154-model-surface img[hidden]{display:none}
.v154-compare-panel h2{font-size:24px;letter-spacing:-.04em;color:#133641;margin:12px 0 5px}
.v154-compare-panel .v154-cat{margin:0;color:#0c8175;font-size:12px;font-weight:850}
.v154-compare-panel .v154-meta{font-size:13px;line-height:1.7;color:#536e76;margin:9px 0 12px}
.v154-compare-panel .v154-view-status{font-size:12px;color:#456f73;line-height:1.5;margin:0 0 11px;min-height:34px}
.v154-compare-panel .v154-detail{display:inline-block;color:#0b766b;font-size:13px;font-weight:800;text-decoration:underline;text-underline-offset:3px}
.v154-warning{border-left:3px solid #0f8c80;border-radius:9px;background:#e9f5f1;padding:13px 16px;margin:18px 0 22px;color:#3b5e66;font-size:13px;line-height:1.7}
.v154-warning[hidden]{display:none}
.v154-compare-status{font-size:12px;color:#5a7580;margin:0 0 15px;min-height:20px}
.v154-compare-summary{background:#fff;border:1px solid #dcebe7;border-radius:17px;padding:20px;overflow-x:auto}
.v154-compare-summary h2{font-size:22px;letter-spacing:-.05em;color:#143941;margin:0 0 13px}
.v154-compare-summary table{width:100%;border-collapse:collapse;min-width:500px}
.v154-compare-summary caption{position:absolute;width:1px;height:1px;clip:rect(0 0 0 0);overflow:hidden;white-space:nowrap}
.v154-compare-summary th,.v154-compare-summary td{padding:13px 11px;border-bottom:1px solid #e4eeeb;text-align:left;font-size:13px;color:#345b62}
.v154-compare-summary thead th{background:#eff7f4;color:#18464d;font-size:13px;font-weight:850}
.v154-compare-summary tbody th{font-weight:800;color:#1c444c;width:22%}
.v154-compare-disclaimer{margin-top:17px;font-size:12px;color:#687e84;line-height:1.75}
@media(max-width:750px){.v154-home-compare{display:block}.v154-home-compare a{display:inline-block;margin-top:13px}.v154-compare-main .wrap{padding-inline:16px}.v154-tools{align-items:stretch}.v154-tools .v154-primary{width:100%}.v154-compare-grid{display:grid;grid-template-columns:none;grid-auto-columns:minmax(280px,87%);grid-auto-flow:column;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;gap:12px}.v154-compare-panel{scroll-snap-align:start;padding:13px}.v154-model-surface{height:285px}.v154-compare-panel h2{font-size:21px}.v154-compare-hero{padding:35px 0}.v154-compare-hero p{font-size:13px}.v154-compare-summary{padding:14px}.v154-hotspot-row{min-height:46px}.v154-expert-top{display:block}.v154-small-tag{display:inline-block;margin-top:9px}}
@media(prefers-reduced-motion:reduce){.v154-hotspot-pin{transition:none;transform:none!important}.v154-compare-grid{scroll-behavior:auto}}