:root{--bg:#F3F0E9;--bg2:#EAE6DD;--ink:#383A38;--mute:#6b6c68;--line:#B8B3AA;--wood:#725B49;--dark:#383A38;--on-dark:#F3F0E9;color-scheme:light;
--serif:"Montserrat","jf-kinxuan","JF Kin Xuan","金萱","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;--sans:"Helvetica Neue","Avenir","Montserrat","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#272927;--bg2:#2f312f;--ink:#EDE9E1;--mute:#a7a39a;--line:#5a5c58;--wood:#c2a186;--dark:#1f201f;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#272927;--bg2:#2f312f;--ink:#EDE9E1;--mute:#a7a39a;--line:#5a5c58;--wood:#c2a186;--dark:#1f201f;color-scheme:dark}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{background:var(--bg);color:var(--ink);font:300 16px/1.85 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--wood);outline-offset:3px}
h1,h2,h3{font-family:var(--serif);font-weight:300;line-height:1.35}
h2{font-size:clamp(26px,3.4vw,40px);letter-spacing:.04em}
h3{font-size:19px;font-weight:400;letter-spacing:.06em}
.wrap{max-width:1240px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
section{padding:clamp(72px,10vw,140px) 0}
.note{font-size:12px;color:var(--wood);border:1px solid var(--wood);padding:1px 8px;display:inline-block;line-height:1.7;letter-spacing:.04em}
/* header */
header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--serif);font-size:17px;letter-spacing:.28em;font-weight:600}
.logo small{display:block;font:300 11px/1 var(--sans);letter-spacing:.2em;color:var(--mute);margin-top:3px}
nav ul{display:flex;gap:34px;list-style:none;padding:0;font-size:14px;letter-spacing:.12em;align-items:center}
nav a:hover{color:var(--wood)}
.cta-s{border:1px solid var(--ink);padding:6px 16px}
.menu{display:none;background:none;border:1px solid var(--line);color:var(--ink);padding:8px 14px;font:inherit;font-size:14px;cursor:pointer}
/* hero */
.hero{padding:0;display:grid;grid-template-columns:1fr;position:relative;min-height:calc(100svh - 64px)}
.ph{position:relative;overflow:hidden;background:var(--c1)}
.ph::after{content:"示意圖 Placeholder";position:absolute;right:12px;bottom:10px;font-size:11px;letter-spacing:.08em;color:#F3F0E9;background:rgba(56,58,56,.7);padding:2px 8px}
.p1{--c1:#cfc9bd;background:linear-gradient(100deg,transparent 0 58%,#e9e4d8 58% 74%,transparent 74%),linear-gradient(180deg,#bfb8aa 0 66%,#8d7867 66% 100%)}
.p1::before{content:"";position:absolute;left:12%;top:14%;width:26%;height:52%;background:#f3f0e9;opacity:.85;box-shadow:inset 0 0 0 10px #a49d90}
.p2{background:linear-gradient(90deg,#8a8378 0 38%,#c9c3b7 38% 100%)}
.p2::before{content:"";position:absolute;left:46%;top:18%;width:34%;height:64%;background:#725B49}
.p3{background:linear-gradient(160deg,#d8d3c8 0 55%,#a8a196 55% 100%)}
.p3::before{content:"";position:absolute;left:14%;bottom:0;width:44%;height:48%;background:#383A38}
.p4{background:linear-gradient(180deg,#e6e1d6 0 70%,#725B49 70% 100%)}
.p4::before{content:"";position:absolute;left:20%;top:0;width:3px;height:70%;background:#383A38;box-shadow:120px 0 0 #383A38,240px 0 0 #383A38}
.p5{background:linear-gradient(120deg,#b8b3aa 0 45%,#d9d4c9 45% 100%)}
.p5::before{content:"";position:absolute;right:16%;top:22%;width:30%;height:56%;border:3px solid #383A38}
.hero .ph{position:absolute;inset:0}
.hero .shade{position:absolute;inset:0;background:linear-gradient(0deg,rgba(40,42,40,.78),rgba(40,42,40,.1) 60%)}
.hero .txt{position:relative;align-self:end;padding:clamp(32px,6vw,88px) 0;color:#F3F0E9}
.hero .wrap{width:100%}
.hero h1{font-size:clamp(34px,6.2vw,84px);letter-spacing:.06em;font-weight:300;max-width:12em}
.hero .zh{margin:20px 0 32px;font-family:var(--serif);font-size:clamp(16px,1.6vw,20px);letter-spacing:.14em}
.hero .name{font-size:13px;letter-spacing:.34em;margin-bottom:20px;display:block}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;font-size:15px;letter-spacing:.14em;border:1px solid currentColor;transition:background .25s,color .25s}
.btn.fill{background:#F3F0E9;color:#383A38;border-color:#F3F0E9}
.btn.fill:hover{background:transparent;color:#F3F0E9}
.btn.line:hover{background:#F3F0E9;color:#383A38}
.hero-note{position:absolute;top:16px;left:0;right:0;z-index:2}
/* philosophy */
.phil{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,7vw,110px)}
.phil p{max-width:34em;color:var(--mute)}
.phil p+p{margin-top:1.2em}
.pts{margin-top:48px;display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}
.pts div{padding:22px 20px 0 0;font-size:15px}
.pts b{display:block;font:400 16px var(--serif);margin-bottom:6px;letter-spacing:.06em}
/* projects */
.head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:48px;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:28px}
.card{display:block;grid-column:span 4}
.card.big{grid-column:span 7}.card.mid{grid-column:span 5}
.card .ph{aspect-ratio:4/5;transition:filter .4s}
.card.big .ph{aspect-ratio:16/11}
.card.mid .ph{aspect-ratio:5/4.4}
.card.wide{grid-column:span 12}.card.wide .ph{aspect-ratio:21/9}
.card:hover .ph{filter:brightness(.92)}
.card h3{margin-top:14px}
.meta{font-size:13px;color:var(--mute);letter-spacing:.06em}
/* services */
.dark{background:var(--dark);color:var(--on-dark)}
.dark .meta{color:#b8b3aa}
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:0 clamp(32px,7vw,110px);margin-top:48px}
.svc article{padding:28px 0;border-top:1px solid #5a5c58}
.svc p{margin-top:8px;font-size:15px;color:#c9c5bc;max-width:30em}
.svc .note{margin-left:10px;vertical-align:middle;color:#d2b79d;border-color:#d2b79d}
/* process */
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line);margin-top:48px;counter-reset:s}
.steps li{padding:22px 18px 0 0;counter-increment:s;font-size:14px;color:var(--mute)}
.steps li::before{content:counter(s);display:block;font:300 28px var(--serif);color:var(--wood);margin-bottom:6px}
.steps b{display:block;font:400 17px var(--serif);color:var(--ink);letter-spacing:.06em;margin-bottom:6px}
.flow article{display:grid;grid-template-columns:4fr 8fr;gap:16px 48px;padding:32px 0;border-top:1px solid var(--line)}
.flow article:first-child{margin-top:48px}
.fee{display:inline-block;margin-top:8px;font-size:12px;border:1px solid var(--wood);color:var(--wood);padding:0 8px;line-height:1.8}
.flow .body{font-size:15px;color:var(--mute);max-width:40em}
.flow .body p+p,.flow .body p+ol,.flow .body ol+p{margin-top:12px}
.flow ol{padding-left:1.4em}
.flow .body b{color:var(--ink);font-weight:500}
@media (max-width:900px){.flow article{grid-template-columns:1fr}}
nav a[aria-current]{color:var(--wood)}
/* contact */
.contact{background:var(--bg2)}
.cwrap{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,7vw,110px)}
.line-btn{display:inline-block;margin-top:28px;background:var(--ink);color:var(--bg);padding:14px 30px;letter-spacing:.14em}
.line-btn:hover{background:var(--wood)}
form{display:grid;grid-template-columns:1fr 1fr;gap:20px}
label{font-size:14px;display:block}
label.full{grid-column:1/-1}
input,select,textarea{width:100%;margin-top:6px;background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--ink);font:inherit;padding:8px 0;border-radius:0}
textarea{min-height:96px;border:1px solid var(--line);padding:10px}
input:disabled,select:disabled,textarea:disabled{opacity:.55}
.warn{grid-column:1/-1;border:1px solid var(--wood);padding:14px 16px;font-size:14px;background:var(--bg)}
button[type=submit]{grid-column:1/-1;justify-self:start;padding:13px 30px;border:1px solid var(--line);background:transparent;color:var(--mute);font:inherit;letter-spacing:.14em;cursor:not-allowed}
footer{padding:48px 0 96px;font-size:13px;color:var(--mute);border-top:1px solid var(--line)}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sticky{display:none}
@media (max-width:900px){
.menu{display:block}
nav{position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);display:none;padding:12px clamp(20px,4vw,48px) 24px}
nav.open{display:block}
nav ul{flex-direction:column;align-items:flex-start;gap:0}
nav li{width:100%;border-bottom:1px solid var(--line)}nav li a{display:block;padding:16px 0}
.cta-s{border:0;padding:16px 0}
.phil,.cwrap,.svc{grid-template-columns:1fr}
.pts{grid-template-columns:1fr}
.steps{grid-template-columns:repeat(2,1fr);row-gap:28px}
.card,.card.big,.card.mid{grid-column:span 12}
.card .ph,.card.big .ph,.card.mid .ph,.card.wide .ph{aspect-ratio:4/3}
form{grid-template-columns:1fr}
.sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--dark);padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));gap:10px}
.sticky a{flex:1;text-align:center;padding:11px;font-size:14px;letter-spacing:.1em;border:1px solid #F3F0E9;color:#F3F0E9}
.sticky a:first-child{background:#F3F0E9;color:#383A38}
}
@media (prefers-reduced-motion:no-preference){.hero h1,.hero .zh,.hero .btns{animation:rise .9s both}.hero .zh{animation-delay:.15s}.hero .btns{animation-delay:.3s}}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
main.sub>section:first-child{padding-top:clamp(56px,8vw,100px)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 14px;z-index:50}
.skip:focus{left:8px}
/* 金萱：取得字體檔並確認授權後，放入 fonts/ 資料夾，再取消下方註解
@font-face{font-family:"jf-kinxuan";src:url("../fonts/jf-kinxuan.woff2") format("woff2");font-display:swap}
*/