/* 印刷範例：沿用 AI 印前助手的藍灰、米白色系，採影像主導的作品集版型。 */
.portfolio-page{background:#f4f2ee;color:var(--c-dark);overflow:hidden}
.portfolio-hero{position:relative;min-height:calc(100svh - 71px);display:flex;align-items:flex-end;isolation:isolate;overflow:hidden}
.portfolio-hero-media,.portfolio-hero-shade{position:absolute;inset:0;width:100%;height:100%}
.portfolio-hero-media{object-fit:cover;object-position:center;z-index:-2;animation:portfolioHeroScale 1.4s cubic-bezier(.2,.7,.2,1) both}
.portfolio-hero-shade{z-index:-1;background:linear-gradient(90deg,rgba(22,27,31,.86) 0%,rgba(22,27,31,.48) 42%,rgba(22,27,31,.05) 78%),linear-gradient(0deg,rgba(22,27,31,.58),transparent 55%)}
.portfolio-hero-copy{width:min(1240px,100%);margin:0 auto;padding:64px 34px 76px;color:#fff;animation:portfolioCopyIn .8s .15s cubic-bezier(.2,.7,.2,1) both}
.portfolio-hero-copy>span,.portfolio-kicker{display:block;color:#bda98e;font-size:12px;font-weight:900;letter-spacing:.18em}
.portfolio-hero-copy h1{max-width:760px;margin:17px 0 22px;font-size:clamp(48px,6.7vw,92px);line-height:1.03;letter-spacing:-.045em;font-weight:950}
.portfolio-hero-copy p{max-width:590px;margin:0 0 30px;color:rgba(255,255,255,.84);font-size:18px;line-height:1.75}
.portfolio-hero-copy a{display:inline-flex;align-items:center;gap:12px;min-height:48px;padding:0 19px;border:1px solid rgba(255,255,255,.68);border-radius:999px;color:#fff;font-weight:900;transition:.22s ease}
.portfolio-hero-copy a:hover{background:#fff;color:#222327;transform:translateY(-2px)}
.portfolio-gallery-section,.portfolio-cta{width:min(1240px,calc(100% - 36px));margin-inline:auto}
.portfolio-gallery-section{padding:92px 0 110px;scroll-margin-top:80px}
.portfolio-gallery-head{display:flex;align-items:end;justify-content:space-between;gap:32px}
.portfolio-gallery-head h2{margin:12px 0 0;font-size:clamp(38px,5vw,64px);letter-spacing:-.04em}
.portfolio-gallery-head>p{margin:0 0 7px;color:#68737c;font-weight:800}
.portfolio-filters{display:flex;gap:9px;overflow-x:auto;padding:24px 0 13px;margin-bottom:34px;border-bottom:1px solid #d9d3cb;scrollbar-width:thin}
.portfolio-filters button{appearance:none;min-height:46px;flex:0 0 auto;border:1px solid #d7d0c7;border-radius:999px;background:transparent;color:#59646d;padding:0 17px;font:inherit;font-size:14px;font-weight:900;cursor:pointer;transition:.2s ease}
.portfolio-filters button:hover{border-color:var(--c-main);color:var(--c-main)}
.portfolio-filters button.active{background:#27343d;border-color:#27343d;color:#fff}
.portfolio-filters button:focus-visible,.portfolio-image-button:focus-visible,.portfolio-lightbox button:focus-visible{outline:3px solid rgba(71,102,125,.35);outline-offset:3px}
.portfolio-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px 24px}
.portfolio-work{display:block;width:100%;margin:0;opacity:0;transform:translateY(24px);transition:opacity .48s ease,transform .48s ease}
.portfolio-work.is-visible{opacity:1;transform:none}
.portfolio-work[hidden]{display:none}
.portfolio-image-button{position:relative;display:block;width:100%;padding:0;border:0;background:#ded9d2;overflow:hidden;cursor:zoom-in}
.portfolio-image-button img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;transition:transform .55s cubic-bezier(.2,.7,.2,1),filter .3s ease}
.portfolio-image-button>span{position:absolute;right:14px;bottom:14px;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.9);color:#27343d;opacity:0;transform:translateY(8px);transition:.22s ease}
.portfolio-image-button:hover img{transform:scale(1.025);filter:saturate(1.04)}
.portfolio-image-button:hover>span{opacity:1;transform:none}
.portfolio-work figcaption{padding:16px 2px 0}
.portfolio-work figcaption>div{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.portfolio-work figcaption span{color:#8c765d;font-size:12px;font-weight:900;letter-spacing:.08em}
.portfolio-work h3{margin:0;font-size:19px;line-height:1.4;text-align:right}
.portfolio-work figcaption p{margin:7px 0 0;color:#737c83;font-size:14px;line-height:1.65}
.portfolio-cta{padding:100px 34px 112px;text-align:center;border-top:1px solid #d9d3cb}
.portfolio-cta h2{margin:15px auto 14px;font-size:clamp(36px,5vw,62px);letter-spacing:-.04em}
.portfolio-cta p{max-width:620px;margin:0 auto 28px;color:#657079;font-size:17px;line-height:1.75}
.portfolio-cta>div{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.portfolio-lightbox{width:min(1100px,calc(100% - 30px));max-height:92svh;padding:0;border:0;background:#171a1d;color:#fff;box-shadow:0 28px 90px rgba(0,0,0,.48)}
.portfolio-lightbox::backdrop{background:rgba(14,17,19,.88);backdrop-filter:blur(8px)}
.portfolio-lightbox img{display:block;width:100%;max-height:82svh;object-fit:contain}
.portfolio-lightbox>button{position:fixed;right:max(24px,calc((100vw - 1100px)/2 + 16px));top:24px;z-index:2;width:48px;height:48px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#222;cursor:pointer}
.portfolio-lightbox p{margin:0;padding:15px 20px;font-weight:800}
.portfolio-lightbox[open]{animation:portfolioLightboxIn .22s ease both}
@keyframes portfolioHeroScale{from{transform:scale(1.055);filter:brightness(.84)}to{transform:scale(1);filter:brightness(1)}}
@keyframes portfolioCopyIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes portfolioLightboxIn{from{opacity:0;transform:scale(.98)}to{opacity:1;transform:none}}
@media(max-width:820px){.portfolio-hero{min-height:calc(92svh - 71px)}.portfolio-hero-shade{background:linear-gradient(0deg,rgba(22,27,31,.88),rgba(22,27,31,.1) 72%)}.portfolio-hero-copy{padding:44px 24px 52px}.portfolio-hero-copy h1{font-size:clamp(44px,12vw,66px)}.portfolio-gallery-section{padding-top:66px}.portfolio-gallery-head{align-items:start;flex-direction:column;gap:10px}.portfolio-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 20px}}
@media(max-width:560px){.portfolio-hero{min-height:calc(88svh - 71px)}.portfolio-hero-media{object-position:58% center}.portfolio-hero-copy p{font-size:16px}.portfolio-gallery-section,.portfolio-cta{width:min(100% - 28px,1240px)}.portfolio-grid{grid-template-columns:1fr}.portfolio-work figcaption>div{display:block}.portfolio-work h3{margin-top:4px;text-align:left}.portfolio-cta{padding-inline:0}.portfolio-filters{margin-right:-14px;padding-right:14px}}
@media(prefers-reduced-motion:reduce){.portfolio-hero-media,.portfolio-hero-copy,.portfolio-lightbox[open]{animation:none}.portfolio-work{opacity:1;transform:none;transition:none}.portfolio-image-button img,.portfolio-hero-copy a{transition:none}}