.product-index-guide-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.product-index-guide-button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 12px 22px; border: 1px solid var(--orange); border-radius: 3px; background: var(--orange); color: #fff; font: inherit; font-size: 14px; font-weight: 800; cursor: pointer; box-shadow: 0 14px 32px rgba(0,0,0,.18); transition: transform .2s ease, background-color .2s ease; }
.product-index-guide-button:hover, .product-index-guide-button:focus-visible { transform: translateY(-2px); background: #d94819; }
.product-index-guide-button span:last-child { font-size: 19px; }

.selection-guide-floating { position: fixed; z-index: 55; right: 24px; bottom: 24px; min-height: 52px; display: inline-flex; align-items: center; gap: 10px; padding: 10px 18px 10px 10px; transform: translateY(26px); border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: var(--navy); color: #fff; font: inherit; font-size: 13px; font-weight: 800; opacity: 0; visibility: hidden; pointer-events: none; cursor: pointer; box-shadow: 0 18px 42px rgba(8,17,31,.28); transition: opacity .25s ease, transform .25s ease, visibility .25s ease, background-color .2s ease; }
.selection-guide-floating.is-visible { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
.selection-guide-floating:hover, .selection-guide-floating:focus-visible { background: var(--orange); }
.selection-guide-floating-icon { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: var(--orange); color: #fff; font-family: "Outfit", sans-serif; font-size: 16px; }
.selection-guide-floating:hover .selection-guide-floating-icon { background: rgba(255,255,255,.2); }

body.selection-guide-open { overflow: hidden; }
.selection-guide-modal { position: fixed; z-index: 100; inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; }
.selection-guide-modal[hidden] { display: none; }
.selection-guide-backdrop { position: absolute; inset: 0; background: rgba(3,8,16,.72); backdrop-filter: blur(7px); }
.selection-guide-panel { position: relative; width: min(820px, 100%); max-height: min(800px, calc(100dvh - 48px)); display: flex; flex-direction: column; overflow: hidden; border-top: 5px solid var(--orange); border-radius: 4px; outline: none; background: #f7f7f3; box-shadow: 0 34px 90px rgba(0,0,0,.34); }
.selection-guide-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; padding: 27px 30px 24px; border-bottom: 1px solid #dedfd9; background: #fff; }
.selection-guide-header p { margin: 0 0 5px; color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.selection-guide-header h2 { margin: 0; font-family: "Outfit", "Noto Sans TC", "Noto Sans JP", sans-serif; font-size: clamp(25px, 4vw, 34px); line-height: 1.15; }
.selection-guide-close { width: 42px; height: 42px; display: grid; place-items: center; flex: 0 0 42px; border: 1px solid #d9dad5; border-radius: 50%; background: #fff; color: var(--ink); font-size: 26px; line-height: 1; cursor: pointer; }
.selection-guide-close:hover, .selection-guide-close:focus-visible { border-color: var(--orange); color: var(--orange); }
.selection-guide-progress { padding: 13px 30px; border-bottom: 1px solid #dedfd9; color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.selection-guide-content { min-height: 320px; overflow-y: auto; padding: 30px; }
.selection-guide-question-heading { margin-bottom: 24px; }
.selection-guide-question-heading h3 { margin: 0; font-family: "Outfit", "Noto Sans TC", "Noto Sans JP", sans-serif; font-size: clamp(25px, 4vw, 34px); line-height: 1.25; }
.selection-guide-question-heading p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
.selection-guide-options { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin: 0; padding: 0; border: 0; }
.selection-guide-option { position: relative; min-height: 108px; display: flex; align-items: flex-start; gap: 13px; padding: 18px; border: 1px solid #d8d9d4; border-radius: 4px; background: #fff; cursor: pointer; transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.selection-guide-option:hover { transform: translateY(-2px); border-color: #aeb1aa; box-shadow: 0 12px 28px rgba(20,32,51,.07); }
.selection-guide-option:has(input:checked) { border-color: var(--orange); box-shadow: 0 0 0 2px rgba(241,90,41,.16); }
.selection-guide-option input { width: 19px; height: 19px; flex: 0 0 19px; margin: 2px 0 0; accent-color: var(--orange); }
.selection-guide-option strong { display: block; color: var(--ink); font-size: 15px; line-height: 1.4; }
.selection-guide-option small { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.selection-guide-option.has-image { min-height: 265px; display: grid; grid-template-columns: 19px minmax(0,1fr); grid-template-rows: 155px auto; align-items: start; }
.selection-guide-option.has-image .selection-guide-option-image { width: 100%; height: 145px; display: block; grid-column: 1 / -1; grid-row: 1; object-fit: contain; object-position: center; }
.selection-guide-option.has-image input { grid-column: 1; grid-row: 2; }
.selection-guide-option.has-image .selection-guide-option-copy { min-width: 0; grid-column: 2; grid-row: 2; }
.selection-guide-status { min-height: 22px; margin: 0; padding: 0 30px; color: #a62f20; font-size: 12px; font-weight: 700; }
.selection-guide-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 30px 24px; border-top: 1px solid #dedfd9; background: #fff; }
.selection-guide-button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 11px; padding: 10px 18px; border-radius: 3px; font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.selection-guide-button[hidden] { display: none; }
.selection-guide-button:disabled { opacity: .45; cursor: not-allowed; }
.selection-guide-button-primary { min-width: 160px; border: 1px solid var(--orange); background: var(--orange); color: #fff; }
.selection-guide-footer .selection-guide-button-primary { margin-left: auto; }
.selection-guide-button-primary:not(:disabled):hover, .selection-guide-button-primary:not(:disabled):focus-visible { background: #d94819; }
.selection-guide-button-secondary { border: 1px solid #c7c9c3; background: #fff; color: var(--ink); }
.selection-guide-button-secondary:hover, .selection-guide-button-secondary:focus-visible { border-color: var(--ink); }

.selection-guide-results-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.selection-guide-results-heading p:first-child { margin: 0 0 6px; color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.selection-guide-results-heading h3 { margin: 0; font-family: "Outfit", "Noto Sans TC", "Noto Sans JP", sans-serif; font-size: clamp(25px, 4vw, 34px); line-height: 1.2; }
.selection-guide-results-heading p:last-child { max-width: 500px; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.selection-guide-restart { flex: 0 0 auto; white-space: nowrap; }
.selection-guide-results { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.selection-guide-result-card { min-width: 0; overflow: hidden; border: 1px solid #d8d9d4; border-top: 4px solid var(--navy); border-radius: 3px; background: #fff; }
.selection-guide-result-card:first-child { border-top-color: var(--orange); }
.selection-guide-result-image { width: 100%; height: 190px; min-width: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 24px 28px; background: #f2f2ee; }
.selection-guide-result-image img { position: static !important; display: block !important; width: auto !important; height: auto !important; max-width: calc(100% - 56px) !important; max-height: 132px !important; margin: auto !important; object-fit: contain !important; object-position: center !important; transform: none !important; }
.selection-guide-result-copy { padding: 20px; }
.selection-guide-result-rank { display: inline-block; margin-bottom: 8px; color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.selection-guide-result-code { margin: 0 0 3px; color: var(--muted); font-family: "Outfit", sans-serif; font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.selection-guide-result-copy h4 { margin: 0; font-size: 21px; line-height: 1.3; }
.selection-guide-result-type { margin: 7px 0 18px; color: var(--muted); font-size: 12px; }
.selection-guide-result-link { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 13px; border: 1px solid var(--navy); color: var(--navy); font-size: 12px; font-weight: 800; text-decoration: none; }
.selection-guide-result-link:hover, .selection-guide-result-link:focus-visible { border-color: var(--orange); background: var(--orange); color: #fff; }
.selection-guide-empty { margin: 0; padding: 24px; border-left: 4px solid var(--orange); background: #fff; color: var(--muted); }
.selection-guide-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

@media (max-width: 760px) {
    .product-index-guide-actions { margin-top: 24px; }
    .product-index-guide-button { min-height: 48px; padding: 10px 18px; }
    /* 手機版社群按鈕留在左側；指南縮為右下圓形按鈕，避免窄螢幕互相遮擋。 */
    .selection-guide-floating { right: 14px; bottom: max(14px, env(safe-area-inset-bottom)); left: auto; width: 52px; max-width: none; justify-content: center; padding: 9px; transform: translateY(26px); }
    .selection-guide-floating > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
    .selection-guide-floating.is-visible { transform: translateY(0); }
    .selection-guide-modal { align-items: flex-end; padding: 0; }
    .selection-guide-panel { width: 100%; max-height: 94dvh; border-radius: 12px 12px 0 0; }
    .selection-guide-header { padding: 21px 18px 18px; }
    .selection-guide-header h2 { font-size: 25px; }
    .selection-guide-progress { padding: 11px 18px; }
    .selection-guide-content { min-height: 280px; padding: 22px 18px; }
    .selection-guide-options, .selection-guide-results { grid-template-columns: 1fr; }
    .selection-guide-option { min-height: 0; }
    .selection-guide-option.has-image { min-height: 230px; grid-template-rows: 125px auto; }
    .selection-guide-option.has-image .selection-guide-option-image { height: 115px; }
    .selection-guide-status { padding-inline: 18px; }
    .selection-guide-footer { padding: 14px 18px max(18px, env(safe-area-inset-bottom)); }
    .selection-guide-results-heading { align-items: flex-start; flex-direction: column; }
    .selection-guide-result-image { height: 180px; }
    .selection-guide-result-image img { max-height: 122px !important; }
}

@media (prefers-reduced-motion: reduce) {
    .product-index-guide-button, .selection-guide-floating, .selection-guide-option { transition: none; }
}

@media print {
    .product-index-guide-actions, .selection-guide-floating, .selection-guide-modal { display: none !important; }
}