.product-guide{--pg-blue:#006cff;--pg-ink:#0b2a53;--pg-muted:#536b87;--pg-line:#d6e1ee;max-width:1320px;margin:auto;padding:24px 36px 64px;color:var(--pg-ink);font-size:17px;line-height:1.65}.product-guide *{box-sizing:border-box;min-width:0}.product-guide a{color:#005ccc}.pg-crumb{font-size:13px;color:var(--pg-muted);margin-bottom:24px}.pg-hero{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;padding-bottom:32px}.product-guide h1{font-size:clamp(32px,4vw,52px);line-height:1.1;letter-spacing:-.025em;margin:8px 0 20px;max-width:20ch}.pg-scope{color:var(--pg-muted);font-size:13px;font-weight:700;letter-spacing:.04em}.pg-summary{font-size:19px;line-height:1.65;max-width:60ch}.pg-byline,.pg-hero figcaption{font-size:13px;color:var(--pg-muted)}.pg-hero figure{margin:0;background:#f5f8fc;border:1px solid var(--pg-line);padding:18px}.pg-hero img{display:block;object-fit:contain;width:100%;height:300px}.pg-hero figcaption{margin-top:12px}.pg-actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.product-guide .button{background:var(--pg-blue);color:#fff;min-height:44px;padding:10px 18px;border-radius:4px;border:1px solid var(--pg-blue);font-size:15px;display:inline-flex;align-items:center;text-decoration:none;cursor:pointer}.pg-nav{display:flex;gap:8px 22px;flex-wrap:wrap;border-block:1px solid var(--pg-line);padding:18px 0;margin-bottom:30px;font-size:15px}.pg-nav a{font-weight:700;text-decoration:none}.pg-readings{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--pg-line);margin:0 0 24px;padding:12px 0 24px;gap:20px}.pg-readings dt{font-size:13px;color:var(--pg-muted)}.pg-readings dd{font-size:24px;font-weight:700;margin:3px 0}.pg-section{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;padding:34px 0;border-bottom:1px solid var(--pg-line);scroll-margin-top:24px}.pg-section>header h2{font-size:25px;line-height:1.25;margin:0 0 12px}.pg-section>header p{font-size:15px;color:var(--pg-muted)}.pg-section h3{font-size:19px;margin:20px 0 8px;line-height:1.35}.pg-section p{margin:0 0 16px}.pg-section ul,.pg-section ol{padding-left:22px;margin:12px 0}.pg-section li{margin-bottom:10px}.pg-table-wrap{overflow:auto}.product-guide table{width:100%;border-collapse:collapse;font-size:15px;text-align:left;margin:12px 0 20px}.product-guide th,.product-guide td{padding:12px 14px;vertical-align:top;border-bottom:1px solid var(--pg-line);white-space:normal}.product-guide thead{background:#f0f5fb}.product-guide th{font-weight:700}.pg-specs{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;margin:0}.pg-specs div{padding:12px 0;border-bottom:1px solid var(--pg-line)}.pg-specs dt{font-size:14px;color:var(--pg-muted)}.pg-specs dd{font-size:20px;margin:0;font-weight:700}.pg-note{border-left:3px solid var(--pg-blue);padding:12px 18px;background:#f3f7fc;font-size:15px;margin:18px 0}.pg-steps{list-style:none;counter-reset:step;padding:0!important}.pg-steps li{counter-increment:step;padding:12px 0 16px 40px;position:relative;border-bottom:1px solid var(--pg-line)}.pg-steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;color:var(--pg-blue);font-weight:700}.pg-steps strong{display:block;margin-bottom:5px}.pg-brief{background:#f0f6ff;padding:24px;border:1px solid #c9dcf5}.product-guide textarea{width:100%;min-height:220px;padding:14px;background:#fff;color:var(--pg-ink);border:1px solid #b8cbe3;font:inherit;line-height:1.5;resize:vertical}.pg-brief label{display:block;font-weight:700;margin-bottom:10px}.pg-brief small{display:block;margin:10px 0;color:var(--pg-muted)}.pg-brief .pg-actions{margin-top:14px}.product-guide button.pg-secondary{background:#fff;color:#005ccc}.pg-status{margin-top:12px!important;min-height:1.5em;font-size:15px}.product-guide details{border-bottom:1px solid var(--pg-line);padding:14px 0}.product-guide summary{font-weight:700;cursor:pointer;min-height:44px}.pg-sources{padding-top:32px;max-width:950px;font-size:15px}.pg-sources h2{font-size:25px}.pg-sources li{padding:10px 0}.pg-sources p{margin:6px 0}.pg-legacy-note{border-left:3px solid #006cff;background:#f0f6ff;padding:12px 18px;font-size:15px}.product-guide :focus-visible{outline:3px solid #005ccc;outline-offset:4px}.product-guide sup{font-size:12px}.pg-split{display:grid;grid-template-columns:1fr 1fr;gap:24px}@media(max-width:800px){.product-guide{padding:20px 20px 48px;font-size:16px}.pg-hero{gap:24px;grid-template-columns:1fr}.pg-summary{font-size:18px}.pg-hero img{height:230px}.pg-section{grid-template-columns:1fr;gap:12px;padding:26px 0}.pg-section>header p{margin-bottom:8px}.pg-readings{grid-template-columns:1fr 1fr}.pg-readings dd{font-size:22px}.pg-nav{gap:12px 18px}.pg-split{grid-template-columns:1fr}.pg-brief{padding:16px}.pg-specs{gap:0 16px}.product-guide table{min-width:580px}.pg-actions{gap:12px}.pg-actions .button{justify-content:center}.pg-sources a{overflow-wrap:anywhere}}@media print{.masthead,.blue-header,.blue-category-nav,footer,.pg-nav,.pg-actions,.pg-crumb{display:none!important}.product-guide{max-width:none;padding:0;font-size:11pt}.pg-section{display:block;break-inside:avoid}.pg-hero{grid-template-columns:2fr 1fr}.pg-hero img{height:140px}.pg-sources{font-size:9pt}.product-guide textarea{border:0;min-height:0;overflow:visible}.pg-print-brief{white-space:pre-wrap}.pg-brief textarea{display:none}.product-guide details>div{display:block!important}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}}
.product-guide [data-reference-table] label{display:block;font-weight:650;margin:20px 0 10px}.product-guide [data-reference-table] input{display:block;width:100%;min-height:48px;padding:12px 14px;border:1px solid #b8cce2;border-radius:4px;background:#fff;color:#183c69;font:inherit;font-size:16px}.product-guide [data-reference-table] [role=status]{font-size:13px;color:#526e90;margin:10px 0}.product-guide [data-reference-table] tr[hidden]{display:none!important}.product-guide .pg-callout{border-left:3px solid #0875ef;padding:20px;background:#f2f7fd;margin:24px 0}.product-guide .pg-callout p:last-child{margin-bottom:0}@media print{.product-guide [data-reference-table] input,.product-guide [data-reference-table] label,.product-guide [data-reference-table] [role=status]{display:none}.product-guide [data-reference-table] tr[hidden]{display:table-row!important}}
.product-guide .pg-table-hint{font-size:13px;color:#536b87;margin:10px 0 0}.product-guide .pg-table-wrap[tabindex]{overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch}.product-guide .pg-table-hint[hidden]{display:none}@media print{.product-guide .pg-table-hint{display:none!important}.product-guide .pg-table-wrap{overflow:visible}.product-guide table{min-width:0!important}}
.product-guide [data-horey-selection] label{display:block;font-weight:700;margin:18px 0 8px}.product-guide [data-horey-selection] select{width:100%;min-height:48px;background:#fff;border:1px solid #b8cbe3;padding:10px;color:#0b2a53;font:inherit;font-size:16px}.product-guide [data-horey-selection] table{min-width:830px}.product-guide [data-horey-selection] caption{caption-side:top;text-align:left;font-size:13px;color:#536b87;padding:10px 0}.product-guide [data-horey-size][hidden]{display:none!important}@media print{.product-guide [data-horey-selection] select,.product-guide [data-horey-selection] label,.product-guide [data-horey-selection] [role=status]{display:none!important}.product-guide [data-horey-size][hidden]{display:table-row!important}.product-guide [data-horey-selection] table{min-width:0!important;font-size:9pt}}
/* Narrow screens need readable prose in specification cards, not squeezed columns. */
.product-guide .pg-specs dd{overflow-wrap:anywhere}@media(max-width:600px){.product-guide .pg-specs{grid-template-columns:1fr}.product-guide .pg-specs dd{font-size:18px;line-height:1.55}}
[data-tysang-depth]>label{display:block;font-weight:700;margin:18px 0 8px}[data-tysang-depth]>select{font:inherit;font-size:16px;min-height:48px;padding:10px 12px;max-width:100%;width:360px;color:#0b2a53;background:#fff;border:1px solid #b8cbe3}@media print{[data-tysang-depth]>label,[data-tysang-depth]>select,[data-tysang-depth]>.pg-status{display:none!important}[data-drill-diameter][hidden]{display:table-row!important}}
[data-jingye-sizes]>label{display:block;font-weight:700;margin:18px 0 8px}[data-jingye-sizes]>select{font:inherit;font-size:16px;min-height:48px;padding:10px 12px;max-width:100%;width:360px;color:#0b2a53;background:#fff;border:1px solid #b8cbe3}[data-jingye-sizes]>[role=status]{font-size:13px;color:#536b87}@media print{[data-jingye-sizes]>label,[data-jingye-sizes]>select,[data-jingye-sizes]>[role=status]{display:none!important}[data-fitting][hidden]{display:table-row!important}}
/* Catalogue identifiers remain intact; captions start with the visible columns. */
.product-guide table caption{text-align:left;caption-side:top;line-height:1.5;padding:10px 0;white-space:normal}.product-guide table :is(th,td){word-break:normal;overflow-wrap:normal}.product-guide [data-reference-table] tbody td:first-child,.product-guide [data-jingye-sizes] tbody td:first-child{white-space:nowrap}.product-guide table th:first-child{min-width:110px}
.product-guide [data-reference-table] tbody :is(th,td):first-child,.product-guide [data-jingye-sizes] tbody :is(th,td):first-child{white-space:nowrap}.product-guide [data-jingye-sizes] tbody td:nth-child(2){white-space:nowrap}

/* Opt-in: configuration records preserve a complete order code on phones. */
@media(max-width:600px){.product-guide .pg-table-wrap:has(.pg-mobile-records){overflow:visible}.product-guide .pg-table-wrap:has(.pg-mobile-records):before{display:none}.product-guide table.pg-mobile-records{display:block;min-width:0;width:100%}.product-guide .pg-mobile-records caption{display:block;text-align:left;margin-bottom:14px;font-weight:600}.product-guide .pg-mobile-records thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.product-guide .pg-mobile-records tbody{display:block}.product-guide .pg-mobile-records tr{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--pg-line);margin-bottom:16px;background:white}.product-guide .pg-mobile-records th,.product-guide .pg-mobile-records td{display:block;border:0;padding:12px 14px;font-size:15px}.product-guide .pg-mobile-records th{grid-column:1/-1;background:#edf4fc;overflow-wrap:anywhere}.product-guide .pg-mobile-records td:first-of-type{grid-column:1/-1;padding-bottom:0}.product-guide .pg-mobile-records td:before{content:attr(data-label);display:block;font-size:12px;color:var(--pg-muted);font-weight:700;margin-bottom:4px}}

/* Selected two-column joint checks remain fully readable on narrow screens. */
@media(max-width:600px){.product-guide table.pg-fit-checks{min-width:0;table-layout:fixed}.product-guide table.pg-fit-checks th:first-child{width:34%;min-width:0}.product-guide table.pg-fit-checks :is(th,td){padding:12px 9px;font-size:14px;overflow-wrap:anywhere}}

/* Xuansheng: two configuration columns become full-width labelled comparisons. */
@media(max-width:600px){.product-guide .xs-comparison td{grid-column:1/-1!important;padding:12px 14px!important}.product-guide .xs-comparison td+td{border-top:1px solid #d6e1ee}}

/* Opt-in long decision records use the full mobile width for every labelled value. */
@media(max-width:600px){.product-guide .pg-stacked-records td{grid-column:1/-1;padding:12px 14px!important}.product-guide .pg-stacked-records td+td{border-top:1px solid var(--pg-line)}}
/* 2026-11-04 touch targets >=44px on tablets and phones (spacing only, look unchanged). */
@media (max-width:1024px){.pg-actions a:not(.button),.pg-nav a{display:inline-flex;align-items:center;min-height:44px}}