/* Feedcatch extension guide: existing red brand, one product preview, one install path. */
@font-face{font-family:FeedcatchPretendard;src:url("fonts/PretendardVariable.woff2") format("woff2");font-style:normal;font-weight:100 900;font-display:swap}
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var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:86px;gap:16px}.brand{display:inline-flex;align-items:center;gap:9px;font-size:23px;font-weight:800;line-height:1.3;text-decoration:none}.brand-mark{display:inline-grid;place-items:center;width:29px;height:31px;border-radius:3px;background:var(--brand);color:var(--paper);font-size:27px;font-weight:800;line-height:1}.site-header nav{display:flex;gap:26px}.site-header nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);font-size:14px;font-weight:600;text-decoration:none}.site-header nav a:hover,.text-link:hover,.site-footer a:hover{color:var(--brand-hover);text-decoration:underline;text-underline-offset:5px}.hero{display:grid;grid-template-columns:minmax(0,1.38fr) minmax(0,1fr);align-items:center;gap:64px;padding-top:54px;padding-bottom:52px}.hero-copy 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minmax(0,1fr);gap:21px;padding:28px 0;border-top:1px solid var(--line)}.install-steps>li:last-child{padding-bottom:0}.step-number{color:var(--brand);font-size:24px;font-weight:750;line-height:1.45;font-variant-numeric:tabular-nums}.step-body{max-width:790px;min-width:0}.step-body h3,.data-item h3{font-size:18px;line-height:1.5}.step-body>p,.data-item p,.data-content details p{margin-top:10px;color:var(--muted);word-break:keep-all;overflow-wrap:break-word}.step-body .helper{font-size:14px}.browser-addresses{display:grid;gap:8px;margin:17px 0}.address-row{display:grid;grid-template-columns:72px minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px 14px;background:var(--soft);border-radius:5px;font-size:14px}.address-row>span{font-weight:650}.address-row code{font-size:15px;letter-spacing:0;user-select:all}.address-row button{min-height:36px;padding:5px 10px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font-size:13px;white-space:nowrap}.address-row button:hover{border-color:var(--brand);color:var(--brand)}.key-fields{display:flex;flex-wrap:wrap;gap:7px 22px;list-style:none;margin:16px 0;padding:12px 0;border-block:1px solid var(--line);font-size:15px;font-weight:650}.text-link{display:inline-flex;align-items:center;min-height:44px;margin-top:8px;color:var(--brand);font-size:15px;text-decoration:underline;text-underline-offset:4px}.api-help{margin-top:16px}.api-help summary{font-size:15px}.api-help>div{padding:3px 0 0 18px}.api-help p{margin-top:9px;color:var(--muted);font-size:15px}details summary{min-height:44px;padding:9px 0;font-weight:650;cursor:pointer;list-style-position:inside}details summary:hover{color:var(--brand)}.copy-feedback{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:15;max-width:calc(100% - 32px);border-radius:6px;background:var(--ink);color:var(--paper);font-size:14px;text-align:center;box-shadow:0 4px 15px #17202b20}.copy-feedback:not(:empty){padding:10px 18px}.data-section{padding:64px 0;background:var(--soft);border-block:1px solid var(--line)}.data-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.7fr);gap:64px}.data-item+.data-item{margin-top:28px}.data-item p,.data-content details p{font-size:14px;line-height:1.85}.data-content details{padding:8px 0;border-top:1px solid var(--line)}.data-content details:first-of-type{margin-top:30px}.data-content details p{margin-top:2px;margin-bottom:12px}.data-content summary{font-size:15px}.site-footer{display:flex;flex-wrap:wrap;align-items:center;gap:6px 25px;padding-block:27px;font-size:13px;color:var(--muted)}.site-footer a{display:inline-flex;align-items:center;min-height:38px;text-decoration:none}.site-footer a:last-child{margin-left:auto}
@media(max-width:850px){.hero{gap:32px;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}.hero-copy h1{font-size:34px;letter-spacing:-1.4px}.hero-description{font-size:16px}.button{font-size:14px;padding-inline:14px}.product-preview{max-width:270px}.data-layout{grid-template-columns:minmax(0,1fr);gap:28px}.feature-list{gap:20px}.feature-list p{font-size:13px}}
@media(max-width:620px){.container{width:calc(100% - 40px)}.header-inner{min-height:72px}.brand{font-size:21px}.brand-mark{width:26px;height:28px;font-size:24px}.site-header nav{gap:18px}.site-header nav a{font-size:12px}.hero{grid-template-columns:minmax(0,1fr);gap:35px;padding-top:40px;padding-bottom:35px}.hero-copy h1{font-size:33px;line-height:1.4;letter-spacing:-1.3px}.hero-description{max-width:350px;margin-top:17px;font-size:16px}.hero-actions{gap:9px;margin-top:24px}.button{font-size:14px;padding-inline:14px;min-height:48px}.requirements{font-size:12px;gap:1px 12px}.beta-note{margin-top:25px;padding-top:17px;font-size:12px}.product-preview{width:100%;max-width:280px}.product-preview figcaption{font-size:11px}.feature-list{grid-template-columns:minmax(0,1fr);gap:19px;padding-block:26px}.feature-list>div{display:grid;grid-template-columns:102px minmax(0,1fr);align-items:baseline;gap:10px}.feature-list h2{font-size:15px}.feature-list p{margin:0;font-size:13px}.guide-section{padding-top:44px;padding-bottom:44px}.section-heading h2{font-size:25px}.section-heading>p{font-size:14px}.install-steps{margin-top:24px}.install-steps>li{grid-template-columns:24px minmax(0,1fr);gap:12px;padding:23px 0}.step-number{font-size:21px}.step-body h3,.data-item h3{font-size:17px}.step-body>p{font-size:14px;line-height:1.9}.step-body .helper{font-size:12px}.address-row{grid-template-columns:minmax(0,1fr) auto;gap:4px 8px;padding:10px}.address-row>span{grid-column:1;font-size:12px}.address-row code{grid-column:1;grid-row:2;font-size:13px}.address-row button{grid-column:2;grid-row:1 / 3;min-height:40px;font-size:12px;padding-inline:8px}.key-fields{font-size:13px;gap:5px 16px}.api-help summary,.api-help p,.text-link{font-size:14px}.data-section{padding:40px 0}.data-item+.data-item{margin-top:23px}.data-item p,.data-content details p{font-size:13px}.data-content summary{font-size:14px}.site-footer{gap:1px 16px;font-size:12px;padding-block:20px}.site-footer a:last-child{margin-left:0;width:100%}}
@media(max-width:359px){.container{width:calc(100% - 32px)}.site-header nav{gap:12px}.hero-copy h1{font-size:29px}.hero-actions{align-items:stretch;flex-direction:column}.button{width:100%}.requirements{flex-direction:column}.feature-list>div{grid-template-columns:91px minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Optional real screenshots keep the mobile reading column compact. */
.guide-shot{margin-top:15px}.guide-shot>summary{font-size:14px;color:var(--brand)}.guide-shot figure{margin:8px 0 0}.guide-image-scroll{max-height:490px;overflow:auto;overscroll-behavior:contain;border:1px solid var(--line);border-radius:6px;background:var(--soft)}.guide-image-scroll:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.guide-image-scroll img{width:auto;min-width:0;max-width:none;height:auto}.guide-shot figcaption{margin-top:9px;color:var(--muted);font-size:12px;line-height:1.8}.help-heading{margin:30px 0 0;font-size:18px;line-height:1.5}.data-content .help-heading+details{margin-top:12px}.help-steps{padding-left:22px;margin:8px 0 14px;color:var(--muted);font-size:14px;line-height:1.9}.help-steps li+li{margin-top:7px}.error-help{margin:4px 0 12px}.error-help>div{padding:10px 0}.error-help>div+div{border-top:1px solid var(--line)}.error-help dt{font-size:14px;font-weight:700}.error-help dd{margin:3px 0 0;color:var(--muted);font-size:14px;line-height:1.9}@media(max-width:620px){.guide-shot>summary{font-size:13px}.guide-image-scroll{max-height:390px}.guide-shot figcaption{font-size:12px}.help-heading{font-size:17px}.help-steps,.error-help dt,.error-help dd{font-size:13px}}