/* ==========================================================================
   Luxmin Pack — pages：多頁共用（頁首、麵包屑、頁尾導覽）與各子頁
   作品總覽（gallery）· 作品細節 · 方案 · 合作 · 404
   ========================================================================== */

/* ─────────── 子頁頁首 ─────────── */
.page-hero { padding-top: clamp(8rem, 17vh, 11.5rem); padding-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.page-hero__title { max-width: 13em; }
.page-hero .lede { margin-top: 1.5rem; }
.page-hero__stats { display: flex; flex-wrap: wrap; gap: 0.6rem 2.5rem; margin-top: 2.4rem; }
.page-hero__stats li { display: flex; align-items: baseline; gap: 0.55rem; font-size: 0.9rem; color: var(--ink-2); }
.page-hero__stats strong { font-size: 1.7rem; font-weight: 600; letter-spacing: -0.04em; color: var(--ink); font-variant-numeric: tabular-nums; }

.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 2rem; font-size: 0.82rem; color: var(--ink-3); }
.crumbs a { color: var(--ink-2); transition: color 0.4s var(--ease-out); }
.crumbs a:hover { color: var(--ink); }
.crumbs [aria-current] { color: var(--ink); }
.crumbs__sep { opacity: 0.5; }

.section--tight { padding-block: clamp(2rem, 4vw, 3rem) var(--section-y); }
.section-head--row { max-width: none; display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem 3rem; }
.section-head--row > div { max-width: 46rem; }

/* ─────────── 頁尾導覽 ─────────── */
.footer__nav { display: flex; flex-wrap: wrap; gap: 0.6rem 1.4rem; font-size: 0.88rem; }
.footer__nav a { transition: color 0.4s var(--ease-out); }
.footer__nav a:hover { color: var(--on-dark); }

/* ─────────── 作品總覽：篩選 ─────────── */
.filters { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; padding-bottom: 1.4rem; box-shadow: inset 0 -1px 0 var(--hair); }
.filters__group { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.filters__label { margin-right: 0.4rem; color: var(--ink-3); }
.filters .chip em { font-style: normal; font-variant-numeric: tabular-nums; }
.filters .chip[disabled] { opacity: 0.35; cursor: default; }
.filters__result { margin-top: 1.2rem; color: var(--ink-3); }

/* ─────────── 作品總覽：格線 ─────────── */
.gallery { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-auto-flow: dense; gap: 1.25rem; margin-top: 1.6rem; }
.tile { position: relative; grid-column: span 4; transition: translate 0.8s var(--ease-out); }
.tile--feature { grid-column: span 6; }
.tile:hover { translate: 0 -4px; }
.tile[hidden] { display: none; }
.tile__core { display: flex; flex-direction: column; padding: 0.5rem 0.5rem 1.3rem; }
.tile__visual { position: relative; aspect-ratio: 16 / 10; overflow: hidden; border-radius: 1.15rem; background: var(--screen); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.5); isolation: isolate; }
.tile--feature .tile__visual { aspect-ratio: 16 / 9.4; }
.tile__visual canvas { width: 100%; height: 100%; }
.tile__visual canvas[data-lab="pinball"] { cursor: pointer; }
.tile__visual--mosaic { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 3px; }
.tile__visual--mosaic img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease-out); }
.tile:hover .tile__visual--mosaic img { transform: scale(1.05); }
.tile__visual--fan { background: radial-gradient(120% 100% at 50% 0%, #2E241A 0%, #15110D 60%, #0E0C0A 100%); }
.tile__visual--fan img {
  position: absolute;
  top: 13%;
  width: 56%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0.55rem;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset, 0 24px 40px -18px rgba(0, 0, 0, 0.85);
  transition: transform 1.1s var(--ease-out);
}
.tile__visual--fan .fan-1 { left: 5%; transform: rotate(-7deg); }
.tile__visual--fan .fan-2 { left: 22%; top: 9%; z-index: 2; }
.tile__visual--fan .fan-3 { left: 39%; transform: rotate(6deg); }
.tile:hover .fan-1 { transform: translateX(-7%) rotate(-10deg); }
.tile:hover .fan-2 { transform: translateY(-3%); }
.tile:hover .fan-3 { transform: translateX(7%) rotate(9deg); }

.tile__body { flex: 1; display: flex; flex-direction: column; gap: 0.55rem; padding: 1.2rem 1rem 0; }
.tile__meta { display: flex; align-items: center; justify-content: space-between; color: var(--lux); }
.tile__status { padding: 0.22rem 0.5rem; border-radius: 0.35rem; background: var(--ink); color: var(--paper); letter-spacing: 0.1em; }
.tile__status--soon { background: transparent; color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--hair-2); }
.tile__name { font-size: 1.32rem; font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; }
.tile--feature .tile__name { font-size: clamp(1.5rem, 2.1vw, 1.95rem); }
.tile__name span { margin-left: 0.45rem; font-size: 0.72em; font-weight: 300; color: var(--ink-3); letter-spacing: 0; }
.tile__desc { max-width: 34em; font-size: 0.92rem; line-height: 1.75; color: var(--ink-2); }
.tile__tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-top: 0.15rem; }
.tile__tags li { padding: 0.16rem 0.55rem; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--hair-2); font-size: 0.72rem; color: var(--ink-2); }
.tile__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem 1rem; margin-top: auto; padding-top: 1rem; }
.tile__price { font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.tile__price small { margin-right: 0.3rem; font-size: 0.72rem; font-weight: 500; color: var(--ink-3); }
.tile__note { font-size: 0.85rem; color: var(--ink-3); white-space: nowrap; }
.tile__foot > .tile__go { margin-left: auto; }
.tile__go {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  flex: none;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  transition: transform 0.6s var(--ease-spring);
}
.tile__go svg, .tile__cta svg { width: 0.9rem; height: 0.9rem; fill: none; stroke: currentColor; stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }
.tile:hover .tile__go { transform: translate(3px, -1px) scale(1.06); }
.tile__cover { position: absolute; inset: 0; z-index: 3; border-radius: var(--radius-xl); }
.tile__cover:focus-visible { outline-offset: 4px; border-radius: var(--radius-xl); }
.tile__cta {
  position: relative;
  z-index: 4;
  margin-left: auto;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.3rem 0.3rem 0.3rem 0.95rem;
  border-radius: 999px;
  background: rgba(92, 52, 36, 0.05);
  box-shadow: inset 0 0 0 1px var(--hair);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background-color 0.4s var(--ease-out);
}
.tile__cta:hover { background: rgba(92, 52, 36, 0.09); }
.tile__cta .tile__go { width: 1.9rem; height: 1.9rem; }
.tile.is-flash .tile__core { animation: tile-flash 1.6s var(--ease-out); }
@keyframes tile-flash { 0%, 100% { box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.9), var(--shadow-float); } 30% { box-shadow: inset 0 0 0 2px var(--lux), var(--shadow-float); } }

/* 只剩一件主打時橫向鋪滿 */
.tile.is-solo { grid-column: 1 / -1; }
.tile.is-solo .tile__core { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
.tile.is-solo .tile__body { padding: 1.4rem 1.6rem 0.4rem; }

.gallery__empty { margin-top: 1.6rem; padding: 4rem 1.5rem; border-radius: var(--radius-xl); box-shadow: inset 0 0 0 1px var(--hair); text-align: center; }
.gallery__empty p { color: var(--ink-2); }
.gallery__empty .btn { margin-top: 1.4rem; }

.custom-band .bezel__core { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem 3rem; padding: clamp(1.8rem, 4vw, 3rem); }
.custom-band h2 { font-size: clamp(1.5rem, 2.4vw, 2.1rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; }
.custom-band p { margin-top: 0.6rem; max-width: 32em; color: var(--ink-2); }

/* ─────────── 作品細節 ─────────── */
.detail-hero { padding-top: clamp(7.5rem, 15vh, 10rem); padding-bottom: clamp(3rem, 6vw, 5rem); }
.detail-hero__grid { display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: clamp(2.5rem, 5vw, 5.5rem); align-items: center; }
.detail-hero__code { color: var(--lux); }
.detail-hero__name { margin-top: 0.8rem; font-size: clamp(2.5rem, 1.2rem + 4vw, 4.6rem); font-weight: 700; line-height: 1.1; letter-spacing: -0.035em; }
.detail-hero__name span { display: block; margin-top: 0.4rem; font-size: 0.36em; font-weight: 300; letter-spacing: -0.01em; color: var(--ink-3); }
.detail-hero .lede { margin-top: 1.4rem; }
.price-chip { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 0.2rem 0.6rem; margin-top: 1.8rem; padding: 0.6rem 1.1rem; border-radius: 1rem; box-shadow: inset 0 0 0 1px var(--hair-2); }
.price-chip .mono { color: var(--ink-3); }
.price-chip strong { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.price-chip span:last-child { font-size: 0.88rem; color: var(--ink-2); }
.detail-hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem 1.6rem; margin-top: 2rem; }

.play { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.play::before { content: ""; position: absolute; top: 1.35rem; left: 1.4rem; right: 1.4rem; height: 1px; background: linear-gradient(90deg, var(--hair-2), var(--hair-2) 60%, transparent); }
.play__step { position: relative; }
.play__num { display: grid; place-items: center; width: 2.7rem; height: 2.7rem; border-radius: 50%; background: var(--paper); box-shadow: inset 0 0 0 1px var(--hair-2), var(--shadow-float); font-family: var(--font-mono); font-size: 0.8rem; font-weight: 500; }
.play__step:first-child .play__num { background: var(--ink); color: var(--paper); box-shadow: none; }
.play__step h3 { margin-top: 1.4rem; font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }
.play__step p { margin-top: 0.4rem; max-width: 22em; color: var(--ink-2); }

/* 簽名牆主題：第一張大圖，其餘 4 欄 */
.themes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.8rem; }
.theme-card { position: relative; display: block; width: 100%; overflow: hidden; border-radius: 1rem; aspect-ratio: 1568 / 744; background: var(--screen); box-shadow: var(--shadow-float); cursor: zoom-in; }
.theme-card:first-child { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.theme-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.3s var(--ease-out); }
.theme-card:hover img { transform: scale(1.05); }
.theme-card__cap { position: absolute; left: 0.6rem; bottom: 0.55rem; padding: 0.25rem 0.6rem; border-radius: 999px; background: rgba(8, 8, 9, 0.62); color: var(--on-dark); font-size: 0.74rem; }
.theme-card:first-child .theme-card__cap { left: 1rem; bottom: 0.9rem; font-size: 0.85rem; }

.theme-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.theme-group .bezel__core { height: 100%; padding: 1.5rem; }
.theme-group h3 { display: flex; align-items: baseline; justify-content: space-between; font-size: 1.05rem; font-weight: 700; }
.theme-group h3 .mono { color: var(--ink-3); }
.theme-group p { margin-top: 0.3rem; font-size: 0.85rem; color: var(--ink-3); }
.theme-group ul { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 1rem; }
.theme-group li { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.28rem 0.7rem 0.28rem 0.55rem; border-radius: 999px; background: rgba(92, 52, 36, 0.04); box-shadow: inset 0 0 0 1px var(--hair); font-size: 0.8rem; }
.theme-group li::before { content: ""; width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--c, var(--ink-3)); }

.motions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.6rem; }
.motions li { padding: 0.5rem 0.9rem; border-radius: 0.8rem; background: var(--paper); box-shadow: inset 0 0 0 1px var(--hair), var(--shadow-float); font-size: 0.86rem; color: var(--ink-2); }
.motions b { color: var(--ink); font-weight: 600; }

/* 拍立得牆版型 */
/* 三種版型並排比較，各自維持整面牆的 4:3，不裁切 */
.preset-shots { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.preset-shot { position: relative; margin: 0; }
.preset-shot img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 1.1rem; box-shadow: var(--shadow-device); }
.preset-shot figcaption { position: absolute; left: 0.8rem; bottom: 0.8rem; display: flex; gap: 0.6rem; align-items: baseline; padding: 0.35rem 0.8rem; border-radius: 999px; background: rgba(8, 8, 9, 0.66); color: var(--on-dark); font-size: 0.85rem; }
.preset-shot figcaption em { font-style: normal; font-size: 0.72rem; color: var(--on-dark-3); }

.table-wrap { margin-top: 2rem; overflow-x: auto; border-radius: var(--radius-lg); box-shadow: inset 0 0 0 1px var(--hair); }
.data-table { width: 100%; min-width: 40rem; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 0.9rem 1.2rem; text-align: left; vertical-align: top; box-shadow: inset 0 -1px 0 var(--hair); }
.data-table thead th { font-size: 0.86rem; font-weight: 700; letter-spacing: 0.02em; color: var(--ink); background: rgba(92, 52, 36, 0.045); }
.table-hint { display: none; margin-top: 0.8rem; color: var(--ink-3); }
.data-table tbody th { font-weight: 700; white-space: nowrap; }
.data-table td { color: var(--ink-2); }
.data-table tr:last-child th, .data-table tr:last-child td { box-shadow: none; }
.data-table .is-hl { color: var(--ink); font-weight: 600; }

.modes { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 1rem; border-radius: var(--radius-xl); box-shadow: inset 0 0 0 1px var(--hair); overflow: hidden; }
.mode { padding: 1.6rem 1.5rem; }
.mode + .mode { box-shadow: inset 1px 0 0 var(--hair); }
.mode .mono { color: var(--ink-3); }
.mode h3 { margin-top: 0.7rem; font-size: 1.15rem; font-weight: 700; }
.mode p { margin-top: 0.35rem; font-size: 0.9rem; color: var(--ink-2); }
.mode--default { background: var(--ink); color: var(--paper); }
.mode--default .mono { color: var(--lux-soft); }
.mode--default p { color: rgba(255, 250, 246, 0.65); }

.detail-spec { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.detail-spec .spec { margin-top: 0; }
.needs__title { margin-top: 2.4rem; font-size: 1.05rem; font-weight: 700; }
.needs { display: grid; gap: 0.7rem; margin-top: 1rem; }
.plan .text-link { align-self: center; font-size: 0.85rem; color: var(--ink-2); }
.needs li { display: flex; gap: 0.75rem; font-size: 0.92rem; color: var(--ink-2); }
.needs li::before { content: ""; flex: none; width: 0.4rem; height: 0.4rem; margin-top: 0.65em; border-radius: 50%; background: var(--lux); }

.next-pack { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); align-items: center; gap: 2rem; padding: 0.5rem; border-radius: var(--radius-xl); background: rgba(92, 52, 36, 0.035); box-shadow: inset 0 0 0 1px var(--hair); transition: translate 0.8s var(--ease-out); }
.next-pack:hover { translate: 0 -4px; }
.next-pack__text { padding: 1.5rem 1.5rem 1.5rem 2rem; }
.next-pack__text .mono { color: var(--ink-3); }
.next-pack__text strong { display: block; margin-top: 0.6rem; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; letter-spacing: -0.03em; }
.next-pack__text p { margin-top: 0.4rem; color: var(--ink-2); }
.next-pack__img { overflow: hidden; border-radius: calc(var(--radius-xl) - 0.5rem); aspect-ratio: 16 / 9; background: var(--screen); }
.next-pack__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.3s var(--ease-out); }
.next-pack:hover .next-pack__img img { transform: scale(1.04); }

/* 燈箱 */
.lightbox { width: min(92vw, 78rem); max-width: none; max-height: 92dvh; padding: 0; border: 0; background: transparent; overflow: visible; }
.lightbox::backdrop { background: rgba(10, 10, 10, 0.82); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.lightbox[open] { animation: lb-in 0.5s var(--ease-out); }
@keyframes lb-in { from { opacity: 0; transform: scale(0.97); } }
.lightbox__fig img { width: 100%; max-height: 82dvh; object-fit: contain; border-radius: 1rem; }
.lightbox__fig figcaption { margin-top: 0.9rem; text-align: center; color: var(--on-dark-2); }
.lightbox__btn, .lightbox__close { position: absolute; display: grid; place-items: center; width: 3rem; height: 3rem; border-radius: 50%; background: rgba(255, 255, 255, 0.1); color: var(--on-dark); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16); transition: background-color 0.4s var(--ease-out), transform 0.4s var(--ease-out); }
.lightbox__btn:hover, .lightbox__close:hover { background: rgba(255, 255, 255, 0.18); }
.lightbox__btn:active, .lightbox__close:active { transform: scale(0.95); }
.lightbox__btn svg, .lightbox__close svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.lightbox__prev { left: -4rem; top: 40%; }
.lightbox__next { right: -4rem; top: 40%; }
.lightbox__close { right: 0; top: -3.8rem; }

/* ─────────── 方案 ─────────── */
.compare .data-table { min-width: 36rem; }

/* ─────────── 合作 ─────────── */
/* width 不能省：容器裡只有絕對定位的子元素，加上 margin-inline:auto 會讓 grid 不再拉伸，寬度會縮成 0 */
.triad { position: relative; width: 100%; aspect-ratio: 1 / 0.86; max-width: 34rem; margin-inline: auto; }
.triad__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.triad__svg path { fill: none; stroke: var(--hair-2); stroke-width: 1.2; stroke-dasharray: 4 6; }
.triad__svg .triad__flow { stroke: var(--lux); stroke-dasharray: 2 14; stroke-width: 2; stroke-linecap: round; animation: triad-flow 2.4s linear infinite; }
@keyframes triad-flow { to { stroke-dashoffset: -32; } }
.triad__node { position: absolute; display: grid; place-items: center; gap: 0.2rem; width: 9.5rem; padding: 1rem 0.8rem; border-radius: 1.4rem; background: var(--paper); box-shadow: inset 0 0 0 1px var(--hair), var(--shadow-float); text-align: center; translate: -50% -50%; }
.triad__node strong { font-size: 1rem; font-weight: 700; }
.triad__node span { font-size: 0.78rem; color: var(--ink-3); }
.triad__node--us { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-device); }
.triad__node--us span { color: rgba(255, 250, 246, 0.6); }
.triad__label { position: absolute; padding: 0.22rem 0.6rem; border-radius: 999px; background: var(--bg); box-shadow: inset 0 0 0 1px var(--hair-2); font-size: 0.74rem; color: var(--ink-2); translate: -50% -50%; white-space: nowrap; }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(3rem, 6vw, 6rem); align-items: center; }
.kit { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.kit li .bezel__core { height: 100%; padding: 1.4rem 1.5rem; }
.kit h3 { font-size: 1.05rem; font-weight: 700; }
.kit p { margin-top: 0.35rem; font-size: 0.9rem; color: var(--ink-2); }
.kit .mono { color: var(--lux); }

/* ─────────── 404 ─────────── */
.notfound { min-height: 100dvh; display: grid; place-items: center; padding: 8rem var(--gutter) 4rem; text-align: center; }
.notfound__code { font-family: var(--font-mono); font-size: clamp(4rem, 14vw, 9rem); font-weight: 500; letter-spacing: -0.06em; line-height: 1; color: var(--ink); }
.notfound__code span { color: var(--lux); }
.notfound h1 { margin-top: 1.5rem; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; letter-spacing: -0.02em; }
.notfound p { margin-top: 0.8rem; color: var(--ink-2); }
.notfound__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.7rem; margin-top: 2.2rem; }

/* ─────────── 響應式 ─────────── */
@media (max-width: 1100px) {
  .detail-hero__grid { grid-template-columns: 1fr; }
  .themes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .theme-card:first-child { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 1568 / 744; }
  .theme-groups { grid-template-columns: 1fr; }
  .detail-spec { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .tile--feature, .tile.is-solo { grid-column: 1 / -1; }
  .tile { grid-column: span 6; }
  .tile.is-solo .tile__core { display: flex; }
  .play { grid-template-columns: 1fr; gap: 1.6rem; }
  .play::before { top: 1.35rem; bottom: 1.35rem; left: 1.35rem; right: auto; width: 1px; height: auto; background: var(--hair-2); }
  .play__step { display: grid; grid-template-columns: 2.7rem 1fr; column-gap: 1.2rem; }
  .play__step h3 { margin-top: 0.4rem; }
  .play__step p { grid-column: 2; }
  .modes { grid-template-columns: 1fr; }
  .mode + .mode { box-shadow: inset 0 1px 0 var(--hair); }
  .preset-shots { grid-template-columns: 1fr; }
  .table-hint { display: block; }
  .next-pack { grid-template-columns: 1fr; }
  .next-pack__text { padding: 1.4rem 1.2rem 0.6rem; }
  .lightbox__prev { left: 0.5rem; top: auto; bottom: -4rem; }
  .lightbox__next { right: 0.5rem; top: auto; bottom: -4rem; }
}

@media (max-width: 640px) {
  .tile { grid-column: 1 / -1; }
  .themes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kit { grid-template-columns: 1fr; }
  .triad__node { width: 7.6rem; padding: 0.8rem 0.5rem; }
  .triad__node strong { font-size: 0.9rem; }
  .filters { align-items: flex-start; }
}

@media (max-width: 420px) {
  /* 節點是絕對定位（left 86%），太窄時右邊那顆會凸出容器 */
  .triad { width: calc(100% - 2.5rem); }
  .triad__node { width: 6.9rem; padding: 0.7rem 0.4rem; }
  .triad__node span { font-size: 0.72rem; }
}

@media (prefers-reduced-motion: reduce) {
  .triad__svg .triad__flow { animation: none; }
}