/* 隆一堂 LONG YI TANG — global stylesheet */
:root{
  --bg:#faf9f6; --bg-soft:#f3f0ea; --card:#ffffff;
  --ink:#171410; --ink-2:#4a443b; --ink-3:#8a8177;
  --line:#e7e2d8; --gold:#a9853d; --gold-2:#c9a961; --red:#9e2b25;
  --dark:#14110c; --dark-2:#1d1912;
  --serif:"Noto Serif SC","Playfair Display",serif;
  --sans:"Inter","Noto Sans SC",-apple-system,"PingFang SC",sans-serif;
  --r:14px; --shadow:0 18px 50px -18px rgba(23,20,16,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);font-weight:600}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.sec{padding:110px 0}
.sec-title{font-family:var(--serif);font-size:clamp(30px,4vw,46px);font-weight:600;line-height:1.25;margin:18px 0 14px}
.sec-sub{color:var(--ink-2);max-width:640px;font-size:17px}
.center{text-align:center}
.center .sec-sub{margin:0 auto}
.center .eyebrow::after{content:"";width:34px;height:1px;background:var(--gold)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 34px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.04em;transition:.25s;border:1px solid transparent;cursor:pointer;font-family:var(--sans)}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:#8f6f30;transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px)}
.btn-line{border-color:rgba(255,255,255,.55);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}

/* topbar */
.topbar{background:var(--dark);color:#cfc8ba;font-size:13px;position:relative;z-index:60}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:42px}
.topbar a{color:#e9dfc9;font-weight:600}
.topbar .tb-left{display:flex;align-items:center;gap:10px}
.topbar .tb-left svg{flex:none}
.topbar .tb-right{display:flex;align-items:center;gap:22px}
.lang-sw{display:flex;border:1px solid rgba(255,255,255,.25);border-radius:999px;overflow:hidden}
.lang-sw button{background:none;border:0;color:#cfc8ba;font-size:12px;padding:4px 14px;cursor:pointer;font-family:var(--sans);letter-spacing:.06em}
.lang-sw button.on{background:var(--gold);color:#fff}

/* header */
header.site{position:sticky;top:0;background:rgba(250,249,246,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);z-index:50}
header.site .container{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:46px;width:auto}
.brand .bt{display:flex;flex-direction:column;line-height:1.2}
.brand .bt b{font-family:var(--serif);font-size:19px;letter-spacing:.14em}
.brand .bt span{font-size:10px;letter-spacing:.32em;color:var(--ink-3)}
nav.main{display:flex;align-items:center;gap:34px}
nav.main>a{font-size:15px;font-weight:500;color:var(--ink-2);position:relative;padding:6px 0}
nav.main>a:hover,nav.main>a.act{color:var(--ink)}
nav.main>a.act::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold)}
.nav-cta{margin-left:6px}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* dropdown */
.has-sub{position:relative}
.sub{position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);min-width:230px;padding:10px;opacity:0;visibility:hidden;transition:.22s}
.has-sub:hover .sub,.has-sub:focus-within .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.sub a{display:block;padding:10px 14px;border-radius:8px;font-size:14px;color:var(--ink-2)}
.sub a:hover{background:var(--bg-soft);color:var(--ink)}
.sub a b{display:block;color:var(--ink);font-size:14.5px}
.sub a small{color:var(--ink-3)}

/* hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--dark)}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,8,5,.82) 0%,rgba(10,8,5,.55) 45%,rgba(10,8,5,.25) 100%)}
.hero .container{position:relative;z-index:2;padding-top:90px;padding-bottom:90px}
.hero h1{font-family:var(--serif);font-size:clamp(38px,5.6vw,68px);font-weight:600;line-height:1.2;max-width:15em}
.hero h1 em{font-style:normal;color:var(--gold-2)}
.hero p.lead{margin:26px 0 40px;font-size:clamp(16px,1.6vw,19px);color:#e6dfd2;max-width:620px}
.hero .actions{display:flex;gap:16px;flex-wrap:wrap}
.hero .badge-row{display:flex;gap:38px;margin-top:64px;flex-wrap:wrap}
.hero .badge{border-left:2px solid var(--gold);padding-left:16px}
.hero .badge b{display:block;font-family:var(--serif);font-size:26px;color:#fff}
.hero .badge span{font-size:13px;color:#c9c0ae}

/* strip */
.strip{background:var(--dark-2);color:#d8d0bf}
.strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:44px;padding-bottom:44px}
.strip .st b{font-family:var(--serif);font-size:34px;color:var(--gold-2);display:block}
.strip .st span{font-size:13.5px}

/* cards grid */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#d9d1c1}
.card .pic{aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.card .pic img{width:100%;height:100%;object-fit:cover;transition:.6s}
.card:hover .pic img{transform:scale(1.05)}
.card .body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.card .tag{font-size:12px;letter-spacing:.2em;color:var(--gold);font-weight:600}
.card h3{font-family:var(--serif);font-size:21px;font-weight:600}
.card .desc{font-size:14px;color:var(--ink-2);flex:1}
.card .price{font-family:var(--serif);font-size:22px;color:var(--red)}
.card .price small{font-size:13px;color:var(--ink-3);font-family:var(--sans);margin-left:6px}
.card .go{font-size:14px;font-weight:600;color:var(--gold);display:inline-flex;align-items:center;gap:8px}
.card .go::after{content:"→";transition:.25s}
.card:hover .go::after{transform:translateX(5px)}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split.rev>.media{order:2}
.split .media{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.split .media img{width:100%;height:100%;object-fit:cover}
.split ul.ticks{margin-top:24px;display:grid;gap:14px}
.split ul.ticks li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2)}
.split ul.ticks li::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--gold);margin-top:10px}
.split .actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}

/* dark section */
.sec-dark{background:var(--dark);color:#e8e1d2}
.sec-dark .sec-title{color:#fff}
.sec-dark .sec-sub{color:#b7ae9c}
.sec-dark .eyebrow{color:var(--gold-2)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:st}
.step{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--r);padding:30px 26px}
.step::before{counter-increment:st;content:"0" counter(st);font-family:var(--serif);font-size:30px;color:var(--gold-2);display:block;margin-bottom:14px}
.step h4{color:#fff;font-size:17px;margin-bottom:8px}
.step p{font-size:13.5px;color:#b7ae9c}

/* inquiry */
.inq{background:linear-gradient(135deg,#1a1610,#241e14);border-radius:22px;padding:64px;display:grid;grid-template-columns:1fr 1.1fr;gap:60px;color:#e8e1d2}
.inq h3{font-family:var(--serif);font-size:32px;color:#fff;margin:14px 0 16px}
.inq .pts{margin-top:26px;display:grid;gap:12px}
.inq .pts li{display:flex;gap:10px;font-size:14.5px;color:#c9c0ae}
.inq .pts li::before{content:"✓";color:var(--gold-2);font-weight:700}
form.quote{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.quote .full{grid-column:1/-1}
form.quote input,form.quote select,form.quote textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:13px 16px;color:#fff;font-size:14.5px;font-family:var(--sans);outline:none;transition:.2s}
form.quote input::placeholder,form.quote textarea::placeholder{color:#9a9182}
form.quote input:focus,form.quote select:focus,form.quote textarea:focus{border-color:var(--gold-2);background:rgba(255,255,255,.09)}
form.quote select option{color:#171410}
form.quote textarea{min-height:96px;resize:vertical}
form.quote .hint{grid-column:1/-1;font-size:12.5px;color:#9a9182}
.form-ok{display:none;grid-column:1/-1;background:rgba(169,133,61,.18);border:1px solid var(--gold);color:#f0e6cd;border-radius:10px;padding:14px 16px;font-size:14px}

/* breadcrumb / page hero */
.page-hero{background:var(--dark);color:#fff;padding:150px 0 80px;position:relative;overflow:hidden}
.page-hero .bgimg{position:absolute;inset:0;opacity:.28;object-fit:cover;width:100%;height:100%}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:#b7ae9c;margin-bottom:18px}
.crumb a:hover{color:var(--gold-2)}
.page-hero h1{font-family:var(--serif);font-size:clamp(32px,4.4vw,52px);font-weight:600}
.page-hero .sub{margin-top:14px;color:#cfc6b4;max-width:640px;font-size:16.5px}

/* product detail */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:start}
.pd .gallery{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff}
.pd .gallery img{width:100%}
.pd .cap{margin-top:10px;font-size:12.5px;color:var(--ink-3);text-align:center}
.pd h2{font-family:var(--serif);font-size:34px;font-weight:600;margin:10px 0 6px}
.pd .en{color:var(--ink-3);font-size:14px;letter-spacing:.12em;text-transform:uppercase}
.pd .pricebox{display:flex;align-items:baseline;gap:14px;margin:22px 0;padding:22px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.pd .pricebox .p{font-family:var(--serif);font-size:38px;color:var(--red)}
.pd .pricebox .u{color:var(--ink-3);font-size:14px}
.spec{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px}
.spec th,.spec td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
.spec th{color:var(--ink-3);font-weight:500;width:38%}
.spec td{color:var(--ink)}
.pd .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}

/* related */
.rel{margin-top:90px}

/* stats band on origin */
.band{background:var(--bg-soft);border-radius:22px;padding:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:30px;text-align:center}
.band b{font-family:var(--serif);font-size:40px;color:var(--gold);display:block}
.band span{color:var(--ink-2);font-size:14.5px}

/* footer */
footer.site{background:var(--dark);color:#b7ae9c;padding:80px 0 0;margin-top:0}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:56px}
footer h5{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.08em}
footer .fbrand img{height:52px;margin-bottom:18px;filter:brightness(0) invert(1) sepia(.2)}
footer p,footer li{font-size:14px;line-height:2}
footer a:hover{color:var(--gold-2)}
footer .socials{display:grid;gap:10px}
footer .soc{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:12px 16px;font-size:14px;color:#e8e1d2;cursor:pointer;transition:.2s;width:100%;text-align:left;font-family:var(--sans)}
footer .soc:hover{border-color:var(--gold)}
footer .soc svg{flex:none}
.copy{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;font-size:12.5px;color:#8d8474;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* floating contact */
.float-cta{position:fixed;right:22px;bottom:26px;z-index:80;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.float-panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px;width:264px;display:none}
.float-panel.open{display:block;animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.float-panel h6{font-size:13px;color:var(--ink-3);letter-spacing:.12em;margin-bottom:8px}
.float-panel .tel{font-family:var(--serif);font-size:24px;color:var(--red);font-weight:600}
.float-panel .row{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.float-panel .row a,.float-panel .row button{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-2);background:var(--bg-soft);border-radius:8px;padding:9px 12px;border:0;cursor:pointer;font-family:var(--sans);transition:.2s;width:100%}
.float-panel .row a:hover,.float-panel .row button:hover{background:#ece7db;color:var(--ink)}
.float-btns{display:flex;flex-direction:column;gap:10px}
.fbtn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;border:0;box-shadow:0 8px 24px -8px rgba(23,20,16,.4);transition:.25s}
.fbtn:hover{transform:translateY(-3px)}
.fbtn.tel{background:var(--red);color:#fff;animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(158,43,37,.45)}70%{box-shadow:0 0 0 14px rgba(158,43,37,0)}100%{box-shadow:0 0 0 0 rgba(158,43,37,0)}}
.fbtn.chat{background:var(--gold);color:#fff}
.fbtn.top{background:#fff;color:var(--ink);border:1px solid var(--line);opacity:0;pointer-events:none}
.fbtn.top.show{opacity:1;pointer-events:auto}

/* toast */
.toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 26px;border-radius:999px;font-size:14px;opacity:0;transition:.3s;z-index:99;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* responsive */
@media(max-width:1024px){
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .strip .container{grid-template-columns:1fr 1fr;gap:30px}
  .inq{grid-template-columns:1fr;padding:44px}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .sec{padding:72px 0}
  nav.main{position:fixed;inset:120px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:20px 28px 34px;gap:6px;border-bottom:1px solid var(--line);display:none}
  nav.main.open{display:flex}
  nav.main>a{padding:12px 0;border-bottom:1px solid var(--line)}
  .sub{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:0;padding:0 0 0 16px}
  .nav-cta{margin:14px 0 0}
  .burger{display:block}
  .grid-2,.grid-3,.grid-4,.split,.pd{grid-template-columns:1fr}
  .split{gap:34px}
  .split.rev>.media{order:0}
  .band{grid-template-columns:1fr;padding:38px}
  form.quote{grid-template-columns:1fr}
  .topbar .tb-mail{display:none}
  .hero .badge-row{gap:22px}
  .float-cta{right:14px;bottom:16px}
  footer .cols{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}