:root{--bg:#20150e;--panel:#2a1c13;--card:#33231a;--ink:#f6ede0;--muted:#c4b6a2;--gold:#e0bb86;--gold-d:#bf9660;--line:#42311f}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 Lato,"Noto Sans SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding-inline:24px}
h1,h2,h3{font-family:"Playfair Display","Noto Serif SC",serif;font-weight:600;line-height:1.25;margin:0}
html[data-lang="zh"] h1,html[data-lang="zh"] h2,html[data-lang="zh"] h3{font-family:"Noto Serif SC","Playfair Display",serif}
html[data-lang="en"] .z{display:none}
html[data-lang="zh"] .e{display:none}
.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:700}
section{padding-block:88px}
.panel{background:var(--panel)}
.sec-head{max-width:680px;margin-bottom:44px}
.sec-head h2{font-size:clamp(28px,4vw,42px);margin-top:10px}
.sec-head p{color:var(--muted);margin:14px 0 0}
.rule{width:56px;height:2px;background:var(--gold-d);margin-top:18px}
.fine{font-size:13px;color:var(--muted);margin-top:16px}
.more{margin-top:28px;font-weight:700;color:var(--gold)}.more a{text-decoration:none}

/* header */
.site-header{position:sticky;top:0;z-index:30;background:rgba(32,21,14,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:10px;height:70px}
.logo{font-family:"Playfair Display",serif;font-size:22px;font-weight:600;text-decoration:none;letter-spacing:.02em}
.logo span{color:var(--gold)}
nav{margin-left:auto}
nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
nav a{display:block;text-decoration:none;color:var(--muted);padding:8px 13px;font-size:14.5px}
nav a:hover,nav a.on{color:var(--ink)}
nav a.on{box-shadow:inset 0 -2px var(--gold-d)}
.btn{display:inline-block;background:var(--gold);color:#1a140b;padding:13px 26px;border-radius:2px;text-decoration:none;font-weight:700;font-size:14px;letter-spacing:.04em;border:0;cursor:pointer;font-family:inherit;transition:background .2s}
.btn:hover{background:#ecd0a3}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid #6b6253}
.btn.ghost:hover{border-color:var(--gold);color:var(--gold)}
.nav-cta{padding:9px 18px}
.lang{background:none;border:1px solid var(--line);color:var(--muted);border-radius:20px;padding:5px 14px;font:700 12.5px Lato,"Noto Sans SC",sans-serif;cursor:pointer;margin-left:6px}
.lang:hover{border-color:var(--gold-d);color:var(--gold)}
.menu-btn{display:none;width:42px;height:42px;background:none;border:0;cursor:pointer;position:relative}
.menu-btn span{position:absolute;left:9px;right:9px;height:2px;background:var(--ink)}
.menu-btn span:first-child{top:17px}.menu-btn span:last-child{top:25px}
@media(max-width:960px){
  .menu-btn{display:block}
  .lang{margin-left:auto}
  nav{position:absolute;left:0;right:0;top:70px;background:var(--bg);border-bottom:1px solid var(--line);display:none;margin:0}
  nav.open{display:block}
  nav ul{flex-direction:column;padding:8px 24px 16px}
  nav a{padding:13px 0;font-size:16px;border-bottom:1px solid var(--line)}
  nav a.on{box-shadow:none;color:var(--gold)}
  .nav-cta{display:none}
}

/* hero */
.hero{padding-block:56px 84px;background:radial-gradient(900px 480px at 78% 30%,#4a3220,transparent 70%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(32px,4.4vw,58px);margin:14px 0 20px;font-weight:700}
.hero-copy p{color:var(--muted);max-width:500px;margin:0}
.cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-stage{position:relative;aspect-ratio:1.15/1;border-radius:3px;overflow:hidden;background:#000;box-shadow:0 40px 80px -40px #000;outline:1px solid rgba(217,183,132,.3);outline-offset:-1px}
.hero-stage .hs{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1s}
.hero-stage .hs.on{opacity:1}
.hs-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;gap:8px;justify-content:center}
.hs-dots button{width:26px;height:4px;border:0;border-radius:2px;background:rgba(255,255,255,.4);padding:0;cursor:pointer}
.hs-dots button.on{background:var(--gold)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:34px}.hero{padding-block:36px 56px}}

/* facts */
.facts{border-block:1px solid var(--line);background:var(--panel);padding-block:32px}
.facts .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.fact b{display:block;font-family:"Playfair Display",serif;font-size:28px;color:var(--gold);font-weight:600}
.fact>span{font-size:13px;color:var(--muted)}
@media(max-width:700px){.facts .wrap{grid-template-columns:repeat(2,1fr)}}

/* projects */
.projs{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.proj{background:var(--card);border:1px solid var(--line);border-radius:3px;overflow:hidden}
.proj .g-item{aspect-ratio:4/3;border-radius:0;margin:0}
.proj .g-item img{height:100%;object-fit:cover}
.proj-body{padding:18px 20px 22px}
.proj-type{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}
.proj h3{font-size:19px;margin-top:6px}
.proj p{color:var(--muted);font-size:14px;margin:8px 0 0}
.proj-meta{list-style:none;padding:12px 0 0;margin:12px 0 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13px;color:var(--muted)}
.proj-meta b{color:var(--ink);margin-right:6px}
@media(max-width:960px){.projs{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.projs{grid-template-columns:1fr}}

/* galleries / lightbox items */
.gallery{columns:3 260px;column-gap:14px}
.g-item{display:block;break-inside:avoid;margin-bottom:14px;overflow:hidden;border-radius:2px;background:#000}
.g-item img{width:100%;transition:transform .5s}
.g-item:hover img{transform:scale(1.04)}
.g-item[hidden]{display:none}

/* spaces */
.spaces{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.spaces>div{background:var(--panel);padding:30px 28px}
.spaces>div>span{font-family:"Playfair Display",serif;color:var(--gold-d);font-size:14px;letter-spacing:.2em}
.spaces h3{font-size:20px;margin:8px 0 6px}
.spaces p{margin:0;color:var(--muted);font-size:14.5px}
.panel .spaces>div{background:var(--card)}
@media(max-width:900px){.spaces{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.spaces{grid-template-columns:1fr}}

/* series */
.series{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:36px 32px}
.card .num{font-family:"Playfair Display",serif;color:var(--gold-d);font-size:14px;letter-spacing:.2em}
.card h3{font-size:26px;margin:8px 0 2px}
.card .en{color:var(--gold);font-family:"Playfair Display",serif;font-style:italic;font-size:14px;margin-bottom:14px}
.card p{color:var(--muted);margin:0 0 18px}
.card ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.card li{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.card li>span:first-child{color:var(--muted)}
.card li>span:last-child{font-weight:700;text-align:right}
@media(max-width:820px){.series{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{background:var(--card);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.step img{aspect-ratio:1/.87;object-fit:cover;width:100%}
.step .body{padding:0 26px 30px;text-align:center}
.badge{width:38px;height:38px;border-radius:50%;background:var(--gold);color:#1a140b;font-weight:700;display:grid;place-items:center;margin:-19px auto 14px;position:relative}
.step h3{font-size:21px}
.step p{color:var(--muted);font-size:14.5px;margin:8px 0 0}
.time{display:inline-block;margin-top:14px;font-size:12px;font-weight:700;color:var(--gold);border:1px solid var(--gold-d);border-radius:20px;padding:3px 12px}
@media(max-width:820px){.steps{grid-template-columns:1fr}}

/* 3D feature */
.feature{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.feature .sec-head{margin-bottom:22px}
.feature p{color:var(--muted)}
.feature-img .g-item{margin:0;border-radius:3px;box-shadow:0 30px 60px -34px #000}
.ticks{list-style:none;padding:0;margin:18px 0}
.ticks li{padding:10px 0 10px 28px;position:relative;border-bottom:1px solid var(--line);font-size:15px;color:var(--muted)}
.ticks li::before{content:"";position:absolute;left:4px;top:19px;width:10px;height:10px;background:var(--gold-d);transform:rotate(45deg)}
.ticks b{color:var(--ink)}
@media(max-width:860px){.feature{grid-template-columns:1fr;gap:30px}}

/* pricing */
.price{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.price p{color:var(--muted)}
.price .sec-head{margin-bottom:22px}
.price-box{background:var(--bg);border:1px solid var(--line);padding:40px;border-radius:4px}
.price-box .big{font-family:"Playfair Display",serif;font-size:56px;color:var(--gold);line-height:1.1}
.price-box small{color:var(--muted)}
.example{margin-top:24px;border-top:1px solid var(--line);padding-top:16px;font-size:14.5px;color:#d5cdbd}
.example div{display:flex;justify-content:space-between;gap:12px;padding:4px 0}
.note{font-size:12.5px;color:#8f877a;margin-top:14px}
@media(max-width:820px){.price{grid-template-columns:1fr;gap:28px}}

/* about */
.about{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:start}
.about p{color:var(--muted)}
.about .sec-head{margin-bottom:22px}
.press{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.press figure{margin:0}
.press .g-item{margin:0;aspect-ratio:1}
.press .g-item img{height:100%;object-fit:cover}
.press figcaption{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.4}
@media(max-width:860px){.about{grid-template-columns:1fr;gap:30px}}

/* faq */
.faq{max-width:820px}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--gold);font-size:22px;line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:10px 0 0}

/* contact */
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
.info p{margin:0 0 18px;color:#d5cdbd}
.info b{display:block;font-size:12px;letter-spacing:.15em;text-transform:uppercase;color:var(--gold)}
form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form .full{grid-column:1/-1}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
input,select,textarea{width:100%;background:#2a1c13;border:1px solid #4a3826;color:var(--ink);padding:12px 14px;border-radius:2px;font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold-d)}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr;gap:32px}form{grid-template-columns:1fr}}

/* work page */
.page-top{padding-block:64px 24px}
.page-top h1{font-size:clamp(32px,5vw,52px);margin:10px 0}
.page-top p{color:var(--muted);margin:0}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{background:none;border:1px solid var(--line);color:var(--muted);padding:8px 18px;border-radius:24px;font:700 13.5px Lato,"Noto Sans SC",sans-serif;cursor:pointer}
.chip:hover{border-color:var(--gold-d);color:var(--ink)}
.chip.on{background:var(--gold);border-color:var(--gold);color:#1a140b}
.work-grid{padding-block:24px 72px}
.cta-band{background:var(--panel);padding-block:56px;border-top:1px solid var(--line)}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(24px,3vw,32px)}
.cta-band p{margin:8px 0 0;color:var(--muted)}

/* footer */
.site-footer{background:#160e09;color:#8f877a;font-size:14px;padding-top:56px;border-top:1px solid var(--line)}
.site-footer .logo{color:var(--ink);display:inline-block;margin-bottom:8px}
.site-footer p{margin:0}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-grid b{display:block;color:var(--ink);font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.foot-grid a,.foot-grid>div>span{display:block;text-decoration:none;padding:3px 0}
.foot-grid a:hover{color:var(--gold)}
.copy{margin-top:40px;padding-block:22px;border-top:1px solid #2e2016;font-size:12.5px}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr}}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(18,11,7,.96);display:flex;align-items:center;justify-content:center}
.lb[hidden]{display:none}
.lb img{max-width:92vw;max-height:88vh;object-fit:contain}
.lb button{position:absolute;background:none;border:0;color:#fff;font-size:44px;cursor:pointer;padding:12px 18px;line-height:1;opacity:.8}
.lb button:hover{opacity:1}
.lb-x{top:8px;right:12px}.lb-p{left:8px;top:50%;transform:translateY(-50%)}.lb-n{right:8px;top:50%;transform:translateY(-50%)}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.hero h1{font-size:clamp(30px,3.6vw,50px);line-height:1.2}
@media(max-width:860px){.hero h1{font-size:34px}}

.tagline{font-family:"Playfair Display",serif;font-style:italic;color:var(--gold);font-size:18px;margin:0 0 14px!important}
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.why>div{padding:26px;border-left:2px solid var(--gold-d);background:var(--card)}
.why h3{font-size:19px;margin-bottom:8px}
.why p{margin:0;color:var(--muted);font-size:14.5px}
@media(max-width:820px){.why{grid-template-columns:1fr}}
.creds{display:flex;gap:30px;flex-wrap:wrap;margin-top:24px}
.creds b{display:block;font-family:"Playfair Display",serif;font-size:28px;color:var(--gold)}
.creds span{font-size:13px;color:var(--muted)}
.hero h1{text-wrap:balance}
@media(max-width:860px){.hero h1 br{display:none}.hero h1{font-size:32px;line-height:1.22}}
@media(max-width:400px){.hero h1{font-size:29px}}

/* zero-downtime promise */
.promise{padding-block:72px;background:linear-gradient(180deg,var(--panel),var(--bg));border-top:1px solid var(--line)}
.promise-grid{display:grid;grid-template-columns:.9fr 1.3fr;gap:56px;align-items:center}
.promise h2{font-size:clamp(28px,3.4vw,42px);margin:10px 0 16px}
.promise-copy p{color:var(--muted);margin:0;max-width:460px}
.promise-flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s;position:relative}
.promise-flow::before{content:"";position:absolute;left:10%;right:10%;top:34px;border-top:2px dashed var(--gold-d);opacity:.55}
.promise-flow li{position:relative;background:var(--card);border:1px solid var(--line);border-radius:4px;padding:0 20px 24px;text-align:center}
.pi{display:grid;place-items:center;width:68px;height:68px;margin:-2px auto 14px;border-radius:50%;background:var(--bg);border:2px solid var(--gold-d);position:relative;top:0}
.pi svg{width:36px;height:36px;fill:none;stroke:var(--gold);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.promise-flow li{padding-top:0}
.promise-flow h3{font-size:17px;margin-bottom:6px}
.promise-flow p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
@media(max-width:960px){.promise-grid{grid-template-columns:1fr;gap:30px}}
@media(max-width:640px){
  .promise{padding-block:52px}
  .promise-flow{grid-template-columns:1fr;gap:14px}
  .promise-flow::before{left:33px;right:auto;top:34px;bottom:34px;border-top:0;border-left:2px dashed var(--gold-d)}
  .promise-flow li{display:grid;grid-template-columns:68px 1fr;column-gap:16px;text-align:left;padding:16px 18px;align-items:center}
  .promise-flow li .pi{grid-row:1/3;margin:0}
  .promise h2 br{display:none}
}
.promise-flow li{padding-top:18px}
.promise-flow::before{top:52px}
@media(max-width:640px){.promise-flow li{padding-top:16px}.promise-flow::before{top:34px}}