:root{--bg:#16120f;--bg2:#211a16;--panel:rgba(28,22,18,.84);--surface:#f4ede4;--surface2:#eadfce;--text:#f6f1ea;--text-dark:#241d18;--muted:rgba(246,241,234,.72);--muted-dark:rgba(36,29,24,.72);--line:rgba(255,219,176,.16);--line2:rgba(255,219,176,.32);--accent:#c88247;--accent2:#f0b47f;--accent-ink:#3b2413;--shadow:0 24px 60px rgba(0,0,0,.22);--r1:28px;--r2:20px;--r3:14px;--wrap:min(1180px,calc(100vw - 32px))}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:radial-gradient(circle at top left,rgba(200,130,71,.18),transparent 28%),linear-gradient(180deg,#17120f,#130f0d);font:16px/1.65 "Noto Sans SC","Microsoft YaHei",sans-serif}body.menu-open{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}
.container{width:var(--wrap);margin:0 auto}.topbar{border-bottom:1px solid var(--line);background:rgba(9,8,6,.72);backdrop-filter:blur(12px)}.topbar-inner,.site-header-inner,.hero-grid,.hero-metrics,.heading,.cards-3,.cards-4,.contact-grid,.footer-grid,.detail-hero,.detail-grid,.cta-band,.error-grid,.actions{display:grid;gap:24px}
.topbar-inner{grid-template-columns:1fr auto;align-items:center;min-height:46px;color:var(--muted);font-size:14px}.topbar-note{letter-spacing:.12em;text-transform:uppercase}.topbar-links,.nav,.header-ctas,.footer-links,.meta,.tags,.thumbs{display:flex;gap:18px;flex-wrap:wrap}.topbar a:hover,.nav a:hover,.footer-links a:hover,.inline-link:hover{color:var(--accent2)}
.site-header{position:sticky;top:0;z-index:40;transition:.25s;border-bottom:1px solid transparent}.site-header.is-scrolled{background:rgba(12,10,8,.82);backdrop-filter:blur(18px);border-color:var(--line);box-shadow:0 18px 40px rgba(0,0,0,.18)}.site-header-inner{grid-template-columns:auto 1fr auto auto;align-items:center;min-height:82px}
.brand{display:inline-flex;align-items:center;gap:14px}.brand-mark{width:48px;height:48px;display:grid;place-items:center;border-radius:16px;color:var(--accent2);background:linear-gradient(135deg,rgba(255,207,160,.18),rgba(200,130,71,.16));border:1px solid var(--line2)}.brand-text strong,.brand-text span{display:block}.brand-text strong{font:700 22px/1.1 "Noto Serif SC",serif;letter-spacing:.08em}.brand-text span{font-size:12px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav{justify-content:center}.nav a{color:rgba(246,241,234,.9);font-size:15px}.header-phone,.button,.button-secondary,.button-ghost,.tag,.pill{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px}.header-phone{padding:10px 14px;color:var(--accent2);border:1px solid var(--line);background:rgba(255,255,255,.03)}.tag{min-height:34px;padding:0 14px;color:var(--accent2);background:rgba(200,130,71,.12);border:1px solid rgba(200,130,71,.14)}
.menu-toggle{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);color:var(--text)}.mobile-menu{display:none;padding:0 0 18px}.mobile-menu.is-open{display:block}.mobile-panel{padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(23,18,15,.96)}.mobile-panel a{display:block;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}.mobile-panel a:last-child{border-bottom:0}
.hero,.section,.detail-section,.error-shell{position:relative;overflow:hidden}.hero::before,.section::before,.detail-section::before,.error-shell::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:40px 40px;mask-image:linear-gradient(180deg,rgba(255,255,255,.35),transparent 82%)}
.hero{padding:46px 0 84px}.hero-grid{grid-template-columns:1.15fr .85fr;align-items:end}.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;border:1px solid var(--line2);background:rgba(255,255,255,.05);color:var(--accent2);font-size:13px;letter-spacing:.12em;text-transform:uppercase}
h1,h2,.title{margin:0;font-family:"Noto Serif SC",serif;line-height:1.08}.hero h1{margin-top:18px;font-size:clamp(2.8rem,6vw,5.3rem);max-width:10ch;text-wrap:balance}.lead{margin:22px 0 0;color:var(--muted);font-size:18px;max-width:46rem}.actions{grid-auto-flow:column;justify-content:start;margin-top:32px}
.button,.button-secondary,.button-ghost{min-height:52px;padding:0 24px;border:1px solid transparent;transition:.25s;text-align:center}.button{background:linear-gradient(135deg,#f2c291,#c88247);color:var(--accent-ink);box-shadow:0 18px 36px rgba(200,130,71,.24)}.button-secondary{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--text)}.button-ghost{background:transparent;border-color:var(--line2);color:var(--accent2)}.button:hover,.button-secondary:hover,.button-ghost:hover,.thumb:hover{transform:translateY(-2px)}
.hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:34px}.card,.metric,.panel,.quote,.error-card,.cta-band{border:1px solid var(--line);border-radius:var(--r1);background:var(--panel);box-shadow:var(--shadow)}.metric,.card,.panel,.quote{padding:28px}.metric strong{display:block;color:var(--accent2);font:700 34px/1 "Noto Serif SC",serif}.metric span{display:block;margin-top:8px;color:var(--muted);font-size:14px}
.hero-visual{min-height:620px;border:1px solid var(--line);border-radius:36px;overflow:hidden;background:linear-gradient(180deg,rgba(19,15,12,.12),rgba(19,15,12,.75)),url("../images/hero/building-exterior.png") center/cover no-repeat;box-shadow:var(--shadow)}.hero-visual-inner{display:flex;align-items:end;height:100%;padding:28px}.hero-note{width:min(360px,100%);margin-left:auto;padding:26px;border-radius:24px;background:rgba(15,11,8,.82);border:1px solid var(--line)}
.section,.detail-section{padding:92px 0}.light{color:var(--text-dark);background:radial-gradient(circle at top right,rgba(200,130,71,.16),transparent 18%),linear-gradient(180deg,#f7f1e8,#efe5d7)}.light .eyebrow{background:rgba(200,130,71,.12);color:#9d5922;border-color:rgba(157,89,34,.16)}.light .lead,.light .copy,.light .muted{color:var(--muted-dark)}.light .card,.light .metric,.light .panel,.light .quote,.light .error-card,.light .cta-band{background:rgba(255,251,246,.84);border-color:rgba(60,36,19,.12)}.light .button-secondary{color:var(--text-dark);border-color:rgba(60,36,19,.14);background:rgba(255,255,255,.74)}.light .button-ghost{color:#9d5922;border-color:rgba(157,89,34,.18)}.light .tag{color:#9d5922;border-color:rgba(157,89,34,.16)}
.heading{grid-template-columns:1fr auto;align-items:end;margin-bottom:34px}.heading h2{font-size:clamp(2rem,4vw,3.6rem)}.kicker{color:var(--accent2);letter-spacing:.12em;text-transform:uppercase;font-size:13px}.cards-3{grid-template-columns:repeat(3,minmax(0,1fr))}.cards-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.media{height:220px;border-radius:22px;overflow:hidden;margin-bottom:18px}.media img,.gallery-main img,.thumb img,.error-image img{width:100%;height:100%;object-fit:cover}.icon{width:52px;height:52px;display:grid;place-items:center;border-radius:16px;color:var(--accent2);background:rgba(200,130,71,.12);border:1px solid rgba(200,130,71,.18);margin-bottom:18px}.card-title{margin:0 0 12px;font-family:"Noto Serif SC",serif}.copy,.muted{margin:8px 0 0;color:var(--muted)}.list,.footer-list,.breadcrumb{list-style:none;padding:0;margin:0}.list li,.footer-list li{margin-bottom:10px}.list li::before{content:"•";color:var(--accent);margin-right:10px}
.showcase{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:stretch}.showcase-photo{min-height:540px;border-radius:32px;overflow:hidden;box-shadow:var(--shadow)}.showcase-photo img{width:100%;height:100%;object-fit:cover}.mosaic{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.mosaic-card{min-height:220px;border-radius:24px;overflow:hidden;position:relative}.mosaic-card.large{grid-column:span 2;min-height:260px}.mosaic-overlay{position:absolute;left:16px;right:16px;bottom:16px;padding:16px 18px;border-radius:18px;background:rgba(16,12,10,.74);border:1px solid var(--line)}
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.footer{padding:72px 0 36px;border-top:1px solid var(--line);background:rgba(8,7,6,.88)}.footer-grid{grid-template-columns:1.2fr .8fr .8fr 1fr;align-items:start;margin-bottom:28px}.footer-copy{margin-top:18px;color:var(--muted)}.footer-title{margin:0 0 12px;font-family:"Noto Serif SC",serif}.meta{gap:20px;padding-top:26px;border-top:1px solid rgba(255,255,255,.08);color:var(--muted);font-size:14px}
.breadcrumb-wrap{padding:18px 0 0}.breadcrumb{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px}.breadcrumb li+li::before{content:"/";margin-right:12px;color:rgba(255,255,255,.28)}
.detail-hero{grid-template-columns:1fr .92fr;align-items:center;margin-top:28px}.detail-title{margin-top:16px;font-size:clamp(2.3rem,5vw,4.2rem)}.detail-visual{min-height:460px;border-radius:36px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}.detail-visual img{width:100%;height:100%;object-fit:cover}.detail-grid{grid-template-columns:1fr 1fr;align-items:start}.gallery-main{height:480px;border-radius:28px;overflow:hidden;margin-bottom:18px}.thumbs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.thumb{height:96px;border-radius:18px;overflow:hidden;border:2px solid transparent;cursor:pointer;opacity:.74;transition:.25s}.thumb.is-active,.thumb:hover{opacity:1;border-color:rgba(200,130,71,.82)}
.mini{display:grid;gap:12px}.mini-row{display:grid;grid-template-columns:120px 1fr;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(60,36,19,.12)}.mini-row:last-child{padding-bottom:0;border-bottom:0}.mini-row span:first-child{color:var(--muted-dark)}.pill{min-height:36px;padding:0 14px;background:rgba(255,255,255,.05);border:1px solid var(--line)}.process-item{display:grid;grid-template-columns:auto 1fr;gap:16px}.num{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:rgba(200,130,71,.12);color:#9d5922;font-family:"Noto Serif SC",serif}
.cta-band{grid-template-columns:1fr auto;align-items:center;padding:28px 30px;margin-top:34px}.back-to-top{position:fixed;right:20px;bottom:max(20px,env(safe-area-inset-bottom));z-index:30;width:48px;height:48px;border:0;border-radius:50%;background:linear-gradient(135deg,#f2c291,#c88247);color:var(--accent-ink);box-shadow:0 18px 32px rgba(200,130,71,.28);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}.back-to-top.is-visible{opacity:1;visibility:visible;transform:none}
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}[data-reveal].is-visible{opacity:1;transform:none}.error-shell{min-height:100vh;display:grid;place-items:center}.error-grid{grid-template-columns:.92fr 1.08fr;align-items:center}.error-card{padding:36px}.error-number{margin:0 0 18px;color:var(--accent);font:800 clamp(4rem,14vw,9rem)/.92 Manrope,sans-serif;letter-spacing:-.06em}.error-image{height:520px;border-radius:32px;overflow:hidden;box-shadow:var(--shadow)}
@media (max-width:1100px){.hero-grid,.showcase,.contact-grid,.detail-hero,.detail-grid,.footer-grid,.error-grid{grid-template-columns:1fr}.cards-3,.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}.site-header-inner{grid-template-columns:auto 1fr auto;min-height:74px}.nav,.header-ctas{display:none}.menu-toggle{display:inline-grid;place-items:center}.hero-visual{min-height:480px}}
@media (max-width:900px){:root{--wrap:min(100vw - 24px,1180px)}.topbar-inner{grid-template-columns:1fr;gap:8px;padding:10px 0}.topbar-note{font-size:12px;letter-spacing:.1em}.topbar-links{justify-content:center;gap:12px}.heading{grid-template-columns:1fr}.cards-3,.cards-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.detail-title{font-size:clamp(2rem,8vw,3.4rem)}.gallery-main{height:420px}.thumbs{grid-template-columns:repeat(4,minmax(64px,1fr))}}
@media (max-width:760px){:root{--wrap:min(100vw - 20px,1180px)}html{scroll-padding-top:calc(74px + env(safe-area-inset-top))}.topbar-inner,.heading,.cta-band,.form-grid,.hero-metrics,.cards-3,.cards-4,.thumbs,.mosaic,.footer-grid{grid-template-columns:1fr}.site-header{top:0;padding-top:env(safe-area-inset-top)}.site-header.is-scrolled{background:rgba(12,10,8,.92)}.site-header-inner{min-height:68px;gap:14px}.brand{gap:10px;min-width:0}.brand-mark{width:42px;height:42px;border-radius:14px}.brand-text strong{font-size:18px;letter-spacing:.04em}.brand-text span{font-size:11px;letter-spacing:.14em}.mobile-menu{padding-bottom:14px}.mobile-panel{padding:14px 16px;border-radius:18px}.actions{grid-auto-flow:row}.actions>*{width:100%}.topbar-note,.topbar-links{text-align:center;justify-content:center}.topbar-links a{padding:2px 0}.hero,.section,.detail-section,.error-shell{padding:64px 0}.hero{padding-top:34px}.hero h1{font-size:clamp(2.2rem,11vw,3.4rem);max-width:12ch}.lead{font-size:16px;line-height:1.75}.hero-metrics{gap:14px;margin-top:26px}.metric,.card,.panel,.quote,.error-card,.cta-band{padding:20px;border-radius:22px}.hero-visual,.showcase-photo,.detail-visual,.gallery-main,.error-image{min-height:300px;height:300px;border-radius:26px}.media{height:200px}.thumbs{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.thumb{height:88px;border-radius:16px}.cta-band{padding:22px}.back-to-top{right:14px;width:44px;height:44px}.breadcrumb{gap:8px;font-size:13px}.breadcrumb li+li::before{margin-right:8px}.mini-row{grid-template-columns:1fr;gap:4px}.process-item{grid-template-columns:1fr}.num{width:38px;height:38px}.contact-grid .row{align-items:flex-start}}
@media (max-width:520px){.topbar{display:none}.hero{padding-top:24px}.hero h1,.detail-title,.heading h2{word-break:break-word}.eyebrow{width:100%;justify-content:center;padding:9px 12px;font-size:12px}.tag,.pill{width:100%;justify-content:center}.button,.button-secondary,.button-ghost,.header-phone{min-height:48px;padding:0 18px}.hero-note{padding:18px;border-radius:20px}.hero-visual-inner{padding:16px}.detail-hero{margin-top:18px}.gallery-main{height:280px}.thumb{height:78px}.footer{padding:56px 0 28px}.meta{gap:10px;padding-top:20px;font-size:13px}}