.hero{position:relative;isolation:isolate;background:linear-gradient(90deg,rgba(243,241,233,.98) 0%,rgba(243,241,233,.9) 47%,rgba(243,241,233,.18) 100%),url('assets/optimized/trimmer-head-spool-macro-v2.webp') right 48%/cover no-repeat;border-bottom:1px solid var(--rule)}.hero-copy,.hero-plate{position:relative;z-index:1}
.guide-library{max-width:1200px;margin:0 auto 78px;padding:30px 0;border-block:1px solid var(--rule)}.guide-library h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.1;letter-spacing:-.03em;margin:0 0 19px}.guide-library-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px}.guide-library-card{display:flex;gap:13px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--rule);text-decoration:none}.guide-library-card strong{display:block;font-size:1rem;line-height:1.25;color:var(--forest)}.guide-library-card small{display:block;margin-top:5px;color:var(--muted);font-size:.76rem;line-height:1.45}.guide-library-card .guide-icon{flex:0 0 32px;height:32px;display:grid;place-items:center;border:1px solid #aeb9ae;border-radius:50%;color:var(--forest)}.guide-library-card svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.guide-library-card:hover strong{text-decoration:underline;text-decoration-thickness:2px}
@media(max-width:700px){.hero{background:linear-gradient(180deg,rgba(243,241,233,.86),rgba(243,241,233,.98) 56%),url('assets/optimized/trimmer-head-spool-macro-v2.webp') 74% center/cover no-repeat}.guide-library{width:calc(100% - 36px);margin-bottom:48px}.guide-library-grid{grid-template-columns:1fr}}
.guide-library-card .guide-icon{width:58px;height:58px;flex:0 0 58px;border:0;border-radius:0;background-image:url('assets/trimmer-reference-icons.png');background-repeat:no-repeat;background-size:300% 200%;text-indent:-9999px;overflow:hidden}
.guide-library-card:nth-child(1) .guide-icon{background-position:50% 0}
.guide-library-card:nth-child(1) .guide-icon{background-image:url('assets/cutting-head-mark.png');background-size:contain;background-position:center}
.guide-library-card:nth-child(2) .guide-icon{background-position:0 100%}
.guide-library-card:nth-child(3) .guide-icon{background-position:50% 100%}
.guide-library-card:hover .guide-icon{transform:translateY(-2px);transition:transform 180ms ease-out}
.guide-library-card .guide-icon{transition:transform 180ms ease-out}
.guide-library-card:hover .guide-icon{transform:none}
@media(hover:hover) and (pointer:fine){.guide-library-card:hover .guide-icon{transform:translateY(-2px)}}
@media(prefers-reduced-motion:reduce){.guide-library-card .guide-icon{transition:none}.guide-library-card:hover .guide-icon{transform:none}}

.model-use-note{margin:18px 0 12px;padding:15px 17px;background:#e7eee4;border:1px solid #b8c8b6;border-left:4px solid #396b50}.model-use-note h4{margin:0 0 8px;color:#173f34;font-size:1rem}.model-use-note p{margin:7px 0 0;max-width:78ch;color:#43544a;font-size:.82rem}.model-use-note .model-use-scope{font-size:.75rem;color:#5b655d}.model-use-sources{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px!important}.model-use-sources a{color:#174d3d;font-weight:650;font-size:.76rem}
.sku-field{grid-column:1/-1}