:root{--bg:#0b0b0d;--bg2:#141418;--fg:#f4f4f2;--mut:#9a9aa3;--ac:#c6ff3d;--ac2:#7b5cff;--line:rgba(255,255,255,.1)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:Inter,"Noto Sans TC",sans-serif;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
small{font-size:.72em;letter-spacing:.08em;color:var(--mut);font-weight:400}
.container{width:min(1200px,90%);margin:auto}
.section{padding:130px 0}
h2{font-size:clamp(30px,4vw,52px);font-weight:900;line-height:1.25;margin-bottom:20px}
.label{color:var(--ac);font-weight:700;letter-spacing:.15em;margin-bottom:14px;font-size:14px}
.label small{margin-left:8px}
.muted{color:var(--mut)}
.center{text-align:center;margin-top:60px}
.head{margin-bottom:60px}
.btn{display:inline-block;background:var(--ac);color:#000;font-weight:700;padding:14px 30px;border-radius:50px;transition:.3s}
.btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(198,255,61,.3)}
.btn small{color:#333}
.btn-sm{padding:9px 22px;font-size:14px}
.btn-lg{padding:20px 50px;font-size:20px;margin-top:30px}
.btn-ghost{background:none;color:var(--fg);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--ac);color:var(--ac);box-shadow:none}
/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:100;display:flex;justify-content:space-between;align-items:center;padding:22px 5%;transition:.3s}
.nav.scrolled{background:rgba(11,11,13,.85);backdrop-filter:blur(12px);padding:14px 5%;border-bottom:1px solid var(--line)}
.logo{font-weight:900;font-size:22px}.logo span{color:var(--ac);margin-left:4px;font-family:Inter}
.menu{display:flex;align-items:center;gap:36px}
.menu a:not(.btn){display:flex;flex-direction:column;align-items:center;line-height:1.3;font-weight:700}
.menu a:not(.btn):hover{color:var(--ac)}
.menu small{font-size:10px}
.burger{display:none;background:none;border:0;width:32px;height:24px;position:relative;cursor:pointer;z-index:101}
.burger span{position:absolute;left:0;width:100%;height:2px;background:var(--fg);transition:.3s}
.burger span:first-child{top:6px}.burger span:last-child{bottom:6px}
.burger.on span:first-child{top:11px;transform:rotate(45deg)}.burger.on span:last-child{bottom:11px;transform:rotate(-45deg)}
/* hero */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:center;overflow:hidden;padding:0 5%}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}
.b1{width:520px;height:520px;background:var(--ac2);top:-120px;right:-80px}
.b2{width:420px;height:420px;background:var(--ac);bottom:-160px;left:20%;opacity:.3}
.b3{width:300px;height:300px;background:#ff4d8d;top:40%;right:25%;opacity:.35}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:80px 80px;mask-image:radial-gradient(circle at center,#000 30%,transparent 75%)}
.hero-inner{position:relative;z-index:2}
.eyebrow{letter-spacing:.3em;color:var(--mut);font-size:14px;margin-bottom:24px}
.hero-title{font-size:clamp(56px,10vw,150px);font-weight:900;line-height:1.08}
.hero-title .line{display:block;overflow:hidden}.hero-title .line>span{display:inline-block}
.hero-title em{font-style:normal;color:var(--ac)}
.hero-sub{margin-top:28px;font-size:20px;color:var(--mut)}
.scroll-hint{position:absolute;bottom:36px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;font-size:11px;letter-spacing:.3em;color:var(--mut);z-index:2}
.scroll-hint i{width:1px;height:50px;background:linear-gradient(var(--ac),transparent);animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
/* about */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.stat{border:1px solid var(--line);border-radius:20px;padding:30px;background:var(--bg2)}
.stat b,.stat>span{font-size:52px;font-weight:900;font-family:Inter;color:var(--ac)}
.stat>span{font-size:26px;margin-left:4px}
.stat p{font-weight:700}.stat p small{display:block}
/* services */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:40px 30px;transition:.4s}
.card:hover{transform:translateY(-8px);border-color:var(--ac)}
.ico{font-size:34px;color:var(--ac);margin-bottom:24px}
.card h3{font-size:24px}.card small{display:block;margin-bottom:14px}
.card p{color:var(--mut);font-size:15px}
/* works */
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.work{display:block}
.work:nth-child(even){margin-top:80px}
.work .img{aspect-ratio:4/3;background-size:cover;background-position:center;border-radius:20px;transition:transform .7s cubic-bezier(.2,.7,.2,1);filter:grayscale(.3)}
.work{overflow:hidden}
.work>.img{will-change:transform}
.work:hover .img{transform:scale(1.06);filter:none}
.work{position:relative}
.cap{padding:20px 4px}.cap h3{font-size:26px;transition:.3s}.work:hover h3{color:var(--ac)}
/* timeline */
.timeline{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);position:relative}
.timeline:before{content:"";position:absolute;top:28px;left:0;right:0;height:1px;background:var(--line)}
.timeline li{position:relative;padding-right:20px}
.timeline b{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--bg);border:1px solid var(--ac);color:var(--ac);font-family:Inter;margin-bottom:24px;position:relative}
.timeline h3{font-size:22px}.timeline small{display:block}.timeline p{color:var(--mut);font-size:14px;margin-top:8px}
/* cta */
.cta{text-align:center;background:radial-gradient(circle at 50% 120%,rgba(123,92,255,.45),transparent 60%)}
.cta-title{font-size:clamp(44px,8vw,110px)}
/* footer */
.footer{border-top:1px solid var(--line);padding:70px 0 30px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer h4{margin-bottom:12px}.footer p{color:var(--mut);font-size:15px}.footer a:hover{color:var(--ac)}
.foot-bottom{display:flex;justify-content:space-between;margin-top:60px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--mut)}
/* responsive */
@media(max-width:960px){
 .cards{grid-template-columns:1fr 1fr}.about-grid{grid-template-columns:1fr;gap:50px}
 .timeline{grid-template-columns:1fr;gap:30px}.timeline:before{left:28px;top:0;bottom:0;right:auto;width:1px;height:auto}
 .timeline li{padding-left:80px}.timeline b{position:absolute;left:0;top:0}
}
@media(max-width:768px){
 .section{padding:90px 0}
 .burger{display:block}
 .menu{position:fixed;inset:0;background:var(--bg);flex-direction:column;justify-content:center;gap:30px;font-size:24px;transform:translateX(100%);transition:.4s}
 .menu.open{transform:none}
 .work-grid,.cards,.foot-grid{grid-template-columns:1fr}.work:nth-child(even){margin-top:0}
 .foot-bottom{flex-direction:column;gap:10px}
}
.preview .hero{height:900px}
/* Maison Blanc palette */
.cards{grid-template-columns:repeat(3,1fr)}
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin:-30px 0 40px}
.tabs button{background:none;border:1px solid var(--line);color:var(--fg);padding:9px 22px;border-radius:40px;font:inherit;font-weight:700;cursor:pointer;transition:.3s}
.tabs button:hover{border-color:var(--ac)}.tabs button.on{background:var(--ac);color:#000;border-color:var(--ac)}
.work-grid{grid-template-columns:repeat(3,1fr)}
.work:nth-child(even){margin-top:0}
.work.hide{display:none}
.work .img{background-position:top center}
.badge{position:absolute;top:14px;left:14px;z-index:2;background:var(--ac);color:#000;font-style:normal;font-size:12px;font-weight:700;padding:4px 12px;border-radius:30px}
.ph{display:grid;place-items:center;border:1px solid var(--line);background:radial-gradient(circle at 30% 20%,rgba(198,255,61,.14),transparent 60%),linear-gradient(135deg,#1b1b20,#0f0f12)}
.ph span{font-weight:900;font-size:22px;color:var(--ac);letter-spacing:.05em;text-align:center;padding:0 20px}
.ph-sys{background:repeating-linear-gradient(90deg,transparent 0 59px,rgba(255,255,255,.04) 59px 60px),radial-gradient(circle at 70% 30%,rgba(123,92,255,.45),transparent 60%),#111114}
.soon .cap h3{color:var(--mut)}
.cap h3{font-size:22px}
@media(max-width:960px){.work-grid,.cards{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.work-grid,.cards{grid-template-columns:1fr}.tabs{margin-top:-20px}}
.about-grid>*{min-width:0}
@media(max-width:768px){.stat{padding:20px}.stat b{font-size:38px}.stat>span{font-size:20px}.stats{gap:12px}}
/* theme toggle */
body,.nav,.card,.stat,.footer,.menu,.ph,.timeline b{transition:background-color .5s,color .5s,border-color .5s,box-shadow .5s}
.theme-toggle{position:relative;width:58px;height:30px;border-radius:30px;border:1px solid var(--line);background:var(--bg2);cursor:pointer;color:var(--fg);flex:none}
.theme-toggle span{position:absolute;top:50%;width:22px;height:22px;margin-top:-11px;display:grid;place-items:center;font-size:14px;line-height:1;transition:.5s}
.theme-toggle .sun{left:4px;opacity:.35}.theme-toggle .moon{right:4px;background:var(--ac);color:#000;border-radius:50%}
[data-theme=light] .theme-toggle .sun{background:var(--ac);color:#fff;border-radius:50%;opacity:1;transform:rotate(180deg)}
[data-theme=light] .theme-toggle .moon{background:none;color:var(--fg);opacity:.35}
/* light theme */
[data-theme=light]{--bg:#faf7f1;--bg2:#f1ebe0;--fg:#1a1916;--mut:#6b665c;--ac:#8a6a35;--ac2:#e6d6b8;--line:rgba(26,25,22,.12)}
[data-theme=light] .nav.scrolled{background:rgba(250,247,241,.88)}
[data-theme=light] .blob{opacity:.45}[data-theme=light] .b2{background:#f0dcb8;opacity:.5}[data-theme=light] .b3{background:#e9c9a8;opacity:.35}
[data-theme=light] .btn{color:#fff}[data-theme=light] .btn small{color:#f1e6d2}
[data-theme=light] .btn-ghost{color:var(--fg)}
[data-theme=light] .btn:hover{box-shadow:0 10px 30px rgba(138,106,53,.25)}
[data-theme=light] .card,[data-theme=light] .stat{background:#fff;box-shadow:0 6px 24px rgba(60,45,20,.06)}
[data-theme=light] .work .img{filter:none;box-shadow:0 8px 30px rgba(60,45,20,.1)}
[data-theme=light] .ph{background:radial-gradient(circle at 30% 20%,rgba(138,106,53,.15),transparent 60%),linear-gradient(135deg,#fff,#efe7d9)}
[data-theme=light] .ph-sys{background:repeating-linear-gradient(90deg,transparent 0 59px,rgba(0,0,0,.04) 59px 60px),radial-gradient(circle at 70% 30%,rgba(230,214,184,.8),transparent 60%),#f6f1e8}
[data-theme=light] .badge,[data-theme=light] .tabs button.on{color:#fff}
[data-theme=light] .cta{background:radial-gradient(circle at 50% 120%,rgba(214,186,140,.45),transparent 60%)}
[data-theme=light] .timeline b{background:var(--bg)}
@media(max-width:768px){.theme-toggle{order:-1}}
.foot-grid{grid-template-columns:1.4fr 1fr}@media(max-width:768px){.foot-grid{grid-template-columns:1fr}}