/* =====================================================================
   VINAREM — "Thế giới rèm"
   Bảng màu lấy từ pixel logo: nâu #301810 và vàng #C9962A.
   Mọi cặp chữ/nền đã kiểm WCAG (xem README).
   ===================================================================== */
:root{
  --night:#140c08; --espresso:#1f120c; --cocoa:#301810;
  --wine:#5a2a1e; --wine-d:#3a160f;
  --gold:#c9962a; --gold-l:#e3bd6a; --gold-d:#85600f;
  --ivory:#f7f1e6; --cream:#eee4d2; --sand:#dccdb3;
  --text:#2a1a12; --muted:#6a5a48; --muted-d:#b3a38b;
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.77,0,.18,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --wrap:1240px;
  --c1:#5a2a1e; --c2:#3a160f;   /* màu vải đang chọn */
}
@property --open{syntax:'<number>';inherits:true;initial-value:0}
@property --p{syntax:'<number>';inherits:true;initial-value:0}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:16px;line-height:1.7;color:var(--text);
  background:var(--ivory);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.18;margin:0 0 .5em;letter-spacing:.005em}
p{margin:0 0 1em}
::selection{background:var(--gold);color:var(--night)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.wrap{width:min(var(--wrap),100% - 40px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:var(--gold);color:var(--night);padding:8px 14px}
.skip:focus{left:8px}

/* ---------------------------------------------------------- chữ */
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.32em;
  text-transform:uppercase;font-weight:500;color:var(--gold-d)}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor}
.dark .eyebrow,.eyebrow.on-dark{color:var(--gold-l)}
.display{font-size:clamp(40px,6.4vw,92px);line-height:1.08;font-weight:400}
.h2{font-size:clamp(32px,4.2vw,58px);font-weight:400}
.h2 em,.display em{font-style:italic;color:var(--gold-d)}
.dark .h2 em,.dark .display em{color:var(--gold-l)}
.lead{font-size:clamp(16px,1.35vw,19px);color:var(--muted);max-width:60ch}
.dark .lead{color:var(--muted-d)}
.center{text-align:center}.center .lead{margin-inline:auto}

/* ---------------------------------------------------------- nút */
.btn{--bg:var(--gold);--fg:var(--night);position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;border:1px solid var(--bg);background:var(--bg);color:var(--fg);
  font-size:13px;letter-spacing:.2em;text-transform:uppercase;font-weight:500;overflow:hidden;
  transition:color .5s var(--ease),border-color .5s}
.btn::before,.btn::after{content:"";position:absolute;top:0;bottom:0;width:51%;background:var(--night);
  transition:transform .55s var(--ease);z-index:0}
.btn::before{left:0;transform:translateX(-101%)}
.btn::after{right:0;transform:translateX(101%)}
.btn>*{position:relative;z-index:1}
.btn:hover{color:var(--gold-l)}
.btn:hover::before,.btn:hover::after{transform:none}
.btn.ghost{--bg:transparent;--fg:var(--ivory);border-color:rgba(227,189,106,.6)}
.btn.ghost::before,.btn.ghost::after{background:var(--gold)}
.btn.ghost:hover{color:var(--night)}
.btn.line{--bg:transparent;--fg:var(--text);border-color:var(--text)}
.btn.line::before,.btn.line::after{background:var(--text)}
.btn.line:hover{color:var(--ivory)}
.link-u{position:relative;display:inline-flex;gap:8px;align-items:center;font-size:13px;letter-spacing:.18em;
  text-transform:uppercase;font-weight:500;padding-bottom:4px}
.link-u::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;
  transform-origin:right;transition:transform .5s var(--ease)}
.link-u:hover::after{transform:scaleX(0)}
.ico{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* =====================================================================
   1. MÀN SÂN KHẤU — rèm nhung mở ra khi bước vào
   Chạy hoàn toàn bằng CSS: JS hỏng thì rèm vẫn tự mở, không bao giờ kẹt.
   ===================================================================== */
.stage{position:fixed;inset:0;z-index:100;pointer-events:none;display:none}
html.js .stage{display:block}
.stage-panel{position:absolute;top:0;bottom:0;width:50.5%;
  background:
    linear-gradient(180deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,0) 22%,rgba(0,0,0,0) 70%,rgba(0,0,0,.45) 100%),
    repeating-linear-gradient(90deg,
      rgba(0,0,0,.42) 0px,rgba(0,0,0,.12) 18px,rgba(255,220,190,.10) 38px,rgba(0,0,0,.08) 54px,rgba(0,0,0,.42) 76px),
    linear-gradient(90deg,var(--wine-d),var(--wine) 50%,var(--wine-d));
  box-shadow:inset 0 -40px 60px -20px rgba(0,0,0,.6)}
.stage-panel::after{/* ánh sáng lướt trên nhung */
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 30%,rgba(255,215,160,.13) 45%,transparent 60%);
  background-size:260% 100%;animation:sheen 3.2s ease-in-out .2s both}
.stage-panel.l{left:0;transform-origin:0 0}
.stage-panel.r{right:0;transform-origin:100% 0}
.stage-panel.r::before,.stage-panel.l::before{/* viền kim tuyến mép trong */
  content:"";position:absolute;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--gold-l),var(--gold-d) 40%,var(--gold) 70%,var(--gold-d))}
.stage-panel.l::before{right:0}.stage-panel.r::before{left:0}
.stage-valance{position:absolute;left:0;right:0;top:0;height:9vh;min-height:56px;z-index:2;
  background:
    radial-gradient(60% 120% at 50% 0,rgba(255,220,180,.10),transparent 70%),
    repeating-linear-gradient(90deg,rgba(0,0,0,.35) 0 2px,transparent 2px 64px),
    linear-gradient(180deg,var(--wine-d),var(--wine));
  box-shadow:0 12px 30px rgba(0,0,0,.45)}
.stage-valance::after{/* tua rua vàng */
  content:"";position:absolute;left:0;right:0;bottom:-14px;height:14px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 2px,transparent 2px 7px);
  -webkit-mask:linear-gradient(180deg,#000 30%,transparent);mask:linear-gradient(180deg,#000 30%,transparent)}
.stage-mark{position:absolute;inset:0;display:grid;place-items:center;z-index:3;text-align:center;color:var(--ivory)}
.stage-mark svg{width:min(120px,26vw);height:auto;margin:0 auto 18px}
.stage-mark .ring{stroke:var(--gold);stroke-width:1.2;fill:none;stroke-dasharray:420;stroke-dashoffset:420;
  animation:draw 1.3s var(--ease-out) .15s forwards}
.stage-mark .mono{font-family:var(--serif);font-style:italic;font-size:78px;fill:var(--gold-l);opacity:0;
  animation:fadeIn .9s ease .55s forwards}
.stage-mark .word{font-family:var(--serif);font-size:clamp(26px,4vw,40px);letter-spacing:.5em;padding-left:.5em;
  opacity:0;animation:rise 1s var(--ease-out) .7s forwards}
.stage-mark .tag{font-family:var(--serif);font-style:italic;font-size:clamp(16px,2vw,21px);color:var(--gold-l);
  opacity:0;animation:rise 1s var(--ease-out) .95s forwards}
.stage-inner{animation:markOut .6s var(--ease) 1.45s forwards}

/* Kịch bản mở lần đầu: 0–1,8s hiện logo, 2,0s rèm vén sang hai bên và thắt lại như có dây buộc */
html.js .stage{animation:stageOff .01s linear 3.35s forwards}
.stage-panel.l{animation:openL 1.7s var(--ease) 1.6s forwards}
.stage-panel.r{animation:openR 1.7s var(--ease) 1.6s forwards}
.stage-valance{animation:valanceUp 1s var(--ease) 2.3s forwards}

/* Các trang sau trong cùng phiên: rèm mở nhanh, không logo */
html.vr-quick .stage-mark{display:none}
html.vr-quick .stage-panel.l{animation:openL 1.05s var(--ease) .08s forwards}
html.vr-quick .stage-panel.r{animation:openR 1.05s var(--ease) .08s forwards}
html.vr-quick .stage-valance{animation:valanceUp .8s var(--ease) .45s forwards}
html.vr-quick .stage{animation:stageOff .01s linear 1.4s forwards}

/* Đóng rèm khi chuyển trang (JS thêm lớp) */
html.js .stage.closing{display:block;animation:none;visibility:visible}
.stage.closing .stage-mark{display:none}
.stage.closing .stage-panel.l{animation:closeL .6s var(--ease) forwards}
.stage.closing .stage-panel.r{animation:closeR .6s var(--ease) forwards}
.stage.closing .stage-valance{animation:valanceDown .45s var(--ease) forwards}
.stage.skip-now{animation:stageOff .01s linear forwards!important}
.stage.skip-now .stage-panel.l{animation:openL .7s var(--ease) forwards!important}
.stage.skip-now .stage-panel.r{animation:openR .7s var(--ease) forwards!important}
.stage.skip-now .stage-mark{display:none}
.stage-skip{position:absolute;right:22px;bottom:22px;z-index:4;pointer-events:auto;background:none;border:1px solid rgba(227,189,106,.4);
  color:var(--gold-l);font-size:11px;letter-spacing:.25em;text-transform:uppercase;padding:9px 14px;opacity:0;animation:fadeIn .6s ease .9s forwards}
html.vr-quick .stage-skip{display:none}

@keyframes openL{
  0%{transform:translateX(0) scaleX(1);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
  35%{transform:translateX(-4%) scaleX(.94);clip-path:polygon(0 0,100% 0,96% 100%,0 100%)}
  100%{transform:translateX(-96%) scaleX(.24);clip-path:polygon(0 0,100% 0,18% 62%,0 100%)}}
@keyframes openR{
  0%{transform:translateX(0) scaleX(1);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
  35%{transform:translateX(4%) scaleX(.94);clip-path:polygon(0 0,100% 0,100% 100%,4% 100%)}
  100%{transform:translateX(96%) scaleX(.24);clip-path:polygon(0 0,100% 0,100% 100%,82% 62%)}}
@keyframes closeL{
  0%{transform:translateX(-96%) scaleX(.24);clip-path:polygon(0 0,100% 0,18% 62%,0 100%)}
  100%{transform:translateX(0) scaleX(1);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}}
@keyframes closeR{
  0%{transform:translateX(96%) scaleX(.24);clip-path:polygon(0 0,100% 0,100% 100%,82% 62%)}
  100%{transform:translateX(0) scaleX(1);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}}
@keyframes valanceUp{to{transform:translateY(-110%)}}
@keyframes valanceDown{from{transform:translateY(-110%)}to{transform:none}}
@keyframes stageOff{to{visibility:hidden}}
@keyframes markOut{to{opacity:0;transform:translateY(-14px) scale(.97)}}
@keyframes sheen{from{background-position:120% 0}to{background-position:-40% 0}}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fadeIn{to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* =====================================================================
   2. THANH RÈM — thanh tiến độ cuộn như thanh treo rèm có khoen
   ===================================================================== */
.rod{position:fixed;left:0;right:0;top:0;height:3px;z-index:60;pointer-events:none}
.rod::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--gold-d),var(--gold-l));
  transform-origin:0 50%;transform:scaleX(var(--p))}
.rod i{position:absolute;top:-3px;left:calc(var(--p) * 100%);width:9px;height:9px;margin-left:-4px;border-radius:50%;
  border:1.5px solid var(--gold-l);background:var(--night)}

/* =====================================================================
   3. ĐẦU TRANG
   ===================================================================== */
.hdr{position:fixed;left:0;right:0;top:0;z-index:50;color:var(--ivory);transition:background .5s,backdrop-filter .5s,transform .5s var(--ease),box-shadow .5s}
.hdr .wrap{display:flex;align-items:center;gap:28px;height:84px;transition:height .4s}
.hdr.solid{background:rgba(20,12,8,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(227,189,106,.18)}
.hdr.solid .wrap{height:68px}
.hdr.hide{transform:translateY(-100%)}
.page-light .hdr:not(.solid){background:linear-gradient(180deg,rgba(20,12,8,.75),rgba(20,12,8,0))}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:46px;width:auto;transition:height .4s}
.hdr.solid .brand img{height:38px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav>a,.nav>div>a{position:relative;display:block;padding:10px 14px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:400}
.nav>a::after,.nav>div>a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1px;background:var(--gold-l);
  transform:scaleX(0);transition:transform .45s var(--ease)}
.nav>a:hover::after,.nav>div:hover>a::after,.nav a[aria-current]::after{transform:scaleX(1)}
.nav a[aria-current]{color:var(--gold-l)}
.hdr-cta{display:flex;align-items:center;gap:10px;font-size:14px;letter-spacing:.06em;color:var(--gold-l);white-space:nowrap}
.hdr-cta .ico{width:16px;height:16px}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid rgba(227,189,106,.45);background:none;color:var(--ivory);position:relative}
.burger i,.burger i::before,.burger i::after{position:absolute;left:12px;right:12px;height:1px;background:currentColor;content:"";transition:transform .4s var(--ease)}
.burger i{top:50%}.burger i::before{top:-6px;left:0;right:0}.burger i::after{top:6px;left:0;right:0}

/* Bảng "Bộ sưu tập" thả xuống */
.has-mega{position:static}
.mega{position:absolute;left:0;right:0;top:100%;background:rgba(20,12,8,.97);color:var(--ivory);
  clip-path:inset(0 0 100% 0);transition:clip-path .6s var(--ease);pointer-events:none;border-top:1px solid rgba(227,189,106,.2)}
.has-mega:hover .mega,.has-mega:focus-within .mega{clip-path:inset(0);pointer-events:auto}
.mega .wrap{display:grid;grid-template-columns:repeat(4,1fr) 1.2fr;gap:36px;height:auto!important;padding:40px 0 46px;align-items:start}
.mega h4{font-size:12px;letter-spacing:.3em;text-transform:uppercase;font-family:var(--sans);font-weight:500;color:var(--gold-l);margin-bottom:14px}
.mega ul{list-style:none;margin:0;padding:0;columns:1}
.mega li a{display:block;padding:5px 0;font-size:15px;color:#e7dccb;transition:color .3s,transform .3s}
.mega li a:hover{color:var(--gold-l);transform:translateX(6px)}
.mega-feature{position:relative;min-height:260px;display:flex;align-items:flex-end;padding:22px;overflow:hidden}
.mega-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease-out)}
.mega-feature:hover img{transform:scale(1.06)}
.mega-feature::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(0deg,rgba(20,12,8,.9),transparent 60%)}
.mega-feature span{position:relative;z-index:2;font-family:var(--serif);font-size:24px}

/* Menu di động: hai tấm rèm khép vào */
.mnav{position:fixed;inset:0;z-index:70;visibility:hidden;color:var(--ivory)}
.mnav.open{visibility:visible}
.mnav .mp{position:absolute;top:0;bottom:0;width:50.5%;transition:transform .7s var(--ease);
  background:repeating-linear-gradient(90deg,rgba(0,0,0,.35) 0,rgba(0,0,0,.08) 22px,rgba(255,220,190,.07) 40px,rgba(0,0,0,.35) 60px),var(--wine-d)}
.mnav .mp.l{left:0;transform:translateX(-101%)}.mnav .mp.r{right:0;transform:translateX(101%)}
.mnav.open .mp{transform:none}
.mnav-in{position:relative;z-index:2;height:100%;overflow:auto;padding:90px 28px 40px;opacity:0;transition:opacity .4s .35s}
.mnav.open .mnav-in{opacity:1}
.mnav-close{position:absolute;right:18px;top:18px;z-index:3;width:44px;height:44px;border:1px solid rgba(227,189,106,.5);background:none;color:var(--ivory);font-size:24px;line-height:1}
.mnav a.big{display:block;font-family:var(--serif);font-size:32px;padding:6px 0;border-bottom:1px solid rgba(227,189,106,.15)}
.mnav details summary{list-style:none;font-family:var(--serif);font-size:32px;padding:6px 0;border-bottom:1px solid rgba(227,189,106,.15);cursor:pointer}
.mnav details summary::-webkit-details-marker{display:none}
.mnav details summary::after{content:"+";float:right;color:var(--gold-l)}
.mnav details[open] summary::after{content:"–"}
.mnav details div{padding:10px 0 14px;display:grid;grid-template-columns:1fr 1fr;gap:4px 14px}
.mnav details div a{font-size:14px;color:#e2d6c3;padding:4px 0}
.mnav .mcontact{margin-top:28px;font-size:15px;color:var(--gold-l);display:grid;gap:8px}

/* =====================================================================
   4. HERO — sân khấu rèm voan bay
   ===================================================================== */
.dark{background:var(--night);color:var(--ivory)}
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-3}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.12);
  transition:opacity 1.8s ease,transform 9s linear}
.hero-bg img.on{opacity:.55;transform:scale(1)}
.hero::before{/* sương tối quanh chữ */
  content:"";position:absolute;inset:0;z-index:-2;
  background:radial-gradient(70% 70% at 30% 55%,rgba(20,12,8,.25),rgba(20,12,8,.88) 80%),linear-gradient(0deg,var(--night),transparent 30%)}
.rays{position:absolute;inset:-20%;z-index:-2;pointer-events:none;mix-blend-mode:screen;opacity:.5;
  background:conic-gradient(from 200deg at 50% -10%,transparent 0 6deg,rgba(255,214,150,.12) 8deg,transparent 12deg 20deg,rgba(255,214,150,.08) 23deg,transparent 28deg 40deg,rgba(255,214,150,.1) 44deg,transparent 50deg);
  animation:rays 14s ease-in-out infinite alternate}
@keyframes rays{from{transform:rotate(-4deg)}to{transform:rotate(5deg)}}
/* Hai tấm voan hai bên khung hình, lay động theo gió và theo chuột */
.voile{position:absolute;top:-4%;bottom:-2%;width:30vw;z-index:-1;pointer-events:none;opacity:.75;
  transform:translate3d(calc(var(--mx,0) * 18px),0,0)}
.voile.l{left:-6vw}.voile.r{right:-6vw;transform:translate3d(calc(var(--mx,0) * 18px),0,0) scaleX(-1)}
.voile span{position:absolute;inset:0;transform-origin:50% 0;
  background:
    linear-gradient(90deg,rgba(247,241,230,.22),rgba(247,241,230,.05) 70%,transparent),
    repeating-linear-gradient(90deg,rgba(247,241,230,.16) 0 2px,rgba(247,241,230,.02) 14px,rgba(247,241,230,.12) 26px,rgba(247,241,230,0) 40px);
  -webkit-mask:linear-gradient(90deg,#000 55%,transparent);mask:linear-gradient(90deg,#000 55%,transparent);
  animation:breeze 7s ease-in-out infinite}
.voile span:nth-child(2){animation-duration:9s;animation-delay:-3s;opacity:.7;left:10%}
.voile span:nth-child(3){animation-duration:11s;animation-delay:-6s;opacity:.5;left:22%}
@keyframes breeze{
  0%,100%{transform:skewX(0) scaleX(1)}
  30%{transform:skewX(2.5deg) scaleX(1.05)}
  60%{transform:skewX(-1.6deg) scaleX(.97)}}
.hero-in{position:relative;padding:150px 0 110px}
.hero .display{max-width:13ch;margin:22px 0 26px}
.hero .display .ln{display:block;overflow:hidden;padding-bottom:.08em}
.hero .display .ln>span{display:block;transform:translateY(105%);animation:lineUp 1.3s var(--ease-out) forwards}
.hero .display .ln:nth-child(2)>span{animation-delay:.12s}
html.js .hero .display .ln>span{animation-delay:calc(var(--intro,2.6s) + var(--d,0s))}
html.vr-quick{--intro:.6s}
@keyframes lineUp{to{transform:none}}
.hero .lead{max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.fade-up{animation:rise 1.2s var(--ease-out) both;animation-delay:calc(var(--intro,0s) + var(--d,.3s))}
html:not(.js) .fade-up{animation-delay:0s}
.hero-foot{position:absolute;left:0;right:0;bottom:30px;display:flex;justify-content:space-between;align-items:flex-end;font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted-d)}
.tassel{display:flex;flex-direction:column;align-items:center;gap:10px}
.tassel i{width:1px;height:58px;background:linear-gradient(var(--gold-l),transparent);position:relative;overflow:hidden}
.tassel i::after{content:"";position:absolute;left:0;top:-30px;width:1px;height:30px;background:var(--ivory);animation:drip 2.2s ease-in-out infinite}
@keyframes drip{to{top:60px}}
.hero-dots{display:flex;gap:10px}
.hero-dots button{width:34px;height:2px;border:0;padding:0;background:rgba(247,241,230,.25);position:relative;overflow:hidden}
.hero-dots button.on::after{content:"";position:absolute;inset:0;background:var(--gold-l);animation:fill 6s linear forwards}
@keyframes fill{from{transform:scaleX(0);transform-origin:0}to{transform:scaleX(1);transform-origin:0}}

/* =====================================================================
   5. HIỆU ỨNG HIỆN KHI CUỘN
   .rv            — trồi lên
   .rv-curtain    — mở từ giữa ra hai bên như kéo rèm
   .unveil        — ảnh có hai tấm rèm nhung phủ, vén ra khi cuộn tới
   Chỉ ẩn khi html.js; JS có nhiều lưới an toàn (xem site.js).
   ===================================================================== */
html.js .rv{opacity:0;transform:translateY(38px);transition:opacity 1.1s var(--ease-out),transform 1.1s var(--ease-out);transition-delay:var(--d,0s)}
html.js .rv.in{opacity:1;transform:none}
html.js .rv-curtain{clip-path:inset(0 50% 0 50%);transition:clip-path 1.5s var(--ease);transition-delay:var(--d,0s)}
html.js .rv-curtain.in{clip-path:inset(0 0 0 0)}
.unveil{position:relative;overflow:hidden;background:var(--cocoa)}
.unveil img{width:100%;height:100%;object-fit:cover;transition:transform 1.6s var(--ease-out)}
html.js .unveil img{transform:scale(1.18)}
html.js .unveil.in img{transform:scale(1)}
html.js .unveil::before,html.js .unveil::after{content:"";position:absolute;top:0;bottom:0;width:50.5%;z-index:2;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(0,0,0,.34) 0,rgba(0,0,0,.06) 9px,rgba(255,220,190,.10) 17px,rgba(0,0,0,.34) 26px),var(--wine);
  transition:transform 1.25s var(--ease);transition-delay:var(--d,0s)}
html.js .unveil::before{left:0;transform-origin:0 0}
html.js .unveil::after{right:0;transform-origin:100% 0}
html.js .unveil.in::before{transform:translateX(-100%) scaleX(.3)}
html.js .unveil.in::after{transform:translateX(100%) scaleX(.3)}
.split-words .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.1em}
.split-words .w>span{display:inline-block;transform:translateY(105%);transition:transform 1.1s var(--ease-out);transition-delay:calc(var(--i) * 45ms)}
.split-words.in .w>span,html:not(.js) .split-words .w>span{transform:none}

/* =====================================================================
   6. MÔ PHỎNG RÈM — một bộ khung dùng chung cho ô giới thiệu và Phòng thử rèm.
   Biến --open (0 → 1) điều khiển độ mở; --c1/--c2 là màu vải.
   ===================================================================== */
.win{position:relative;overflow:hidden;aspect-ratio:4/5;isolation:isolate;
  background:linear-gradient(180deg,#8fb3c9 0%,#d9c7a6 62%,#b98f63 100%)}
.win.night{background:linear-gradient(180deg,#0f1a2b 0%,#27324a 60%,#3b3040 100%)}
.win .sky-sun{position:absolute;width:38%;aspect-ratio:1;border-radius:50%;left:56%;top:22%;z-index:-1;
  background:radial-gradient(circle,#fff6d8 0 30%,rgba(255,236,190,.55) 45%,transparent 70%);transition:all 1s}
.win.night .sky-sun{background:radial-gradient(circle,#f3f0e6 0 18%,rgba(230,230,255,.2) 32%,transparent 60%);width:26%}
.win .city{position:absolute;left:0;right:0;bottom:0;height:34%;z-index:-1;opacity:.55;
  background:
    linear-gradient(0deg,rgba(40,28,20,.9),rgba(40,28,20,.6)),
    linear-gradient(90deg,transparent 0 6%,#000 6% 16%,transparent 16% 20%,#000 20% 27%,transparent 27% 33%,#000 33% 45%,transparent 45% 52%,#000 52% 60%,transparent 60% 66%,#000 66% 80%,transparent 80% 85%,#000 85% 96%,transparent 96%);
  -webkit-mask:linear-gradient(90deg,#000 0 6%,transparent 6% 7%,#000 7% 100%);
  clip-path:polygon(0 40%,6% 40%,6% 10%,16% 10%,16% 50%,20% 50%,20% 25%,27% 25%,27% 55%,33% 55%,33% 0,45% 0,45% 45%,52% 45%,52% 20%,60% 20%,60% 60%,66% 60%,66% 15%,80% 15%,80% 40%,85% 40%,85% 5%,96% 5%,96% 50%,100% 50%,100% 100%,0 100%)}
.win.night .city{opacity:.9;background:
  radial-gradient(circle,#ffd98a 0 1px,transparent 2px) 0 0/14px 12px,linear-gradient(0deg,#0b0f18,#141b2a)}
.win .frame{position:absolute;inset:0;z-index:5;pointer-events:none;
  border:10px solid #efe6d6;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08),inset 0 0 40px rgba(0,0,0,.25);
  background:linear-gradient(90deg,transparent calc(50% - 3px),#efe6d6 calc(50% - 3px) calc(50% + 3px),transparent calc(50% + 3px)),
             linear-gradient(0deg,transparent calc(58% - 3px),#efe6d6 calc(58% - 3px) calc(58% + 3px),transparent calc(58% + 3px))}
.win .glow{position:absolute;inset:0;z-index:4;pointer-events:none;
  background:linear-gradient(115deg,rgba(255,240,210,calc(var(--open) * .35)),transparent 55%)}
.cur{position:absolute;inset:0;z-index:3}
.cur .rodbar{position:absolute;left:-2%;right:-2%;top:0;height:10px;z-index:6;background:linear-gradient(180deg,#e3bd6a,#85600f);box-shadow:0 3px 8px rgba(0,0,0,.35)}
.fab{/* vải có nếp dọc */
  background:
    repeating-linear-gradient(90deg,rgba(0,0,0,.34) 0,rgba(0,0,0,.05) 8%,rgba(255,236,210,.16) 15%,rgba(0,0,0,.08) 21%,rgba(0,0,0,.34) 28%),
    linear-gradient(180deg,var(--c1),var(--c2))}

/* a) Rèm vải: hai tấm dồn về hai bên, nếp dày lên khi dồn */
.cur.drape .p,.cur.sheer .p{position:absolute;top:10px;bottom:0;width:51%;transition:width .9s var(--ease)}
.cur.drape .p{width:calc(51% - var(--open) * 38%)}
.cur.drape .p.l{left:0}.cur.drape .p.r{right:0}
.cur.drape .p::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.28),transparent 30%)}
/* b) Rèm voan: mỏng, trong, gợn như gió */
.cur.sheer .p{width:calc(51% - var(--open) * 34%);opacity:.72;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0,rgba(255,255,255,.12) 8px,rgba(255,255,255,.4) 16px),
    linear-gradient(180deg,color-mix(in srgb,var(--c1) 30%,#fff),color-mix(in srgb,var(--c2) 22%,#fff));
  transform-origin:50% 0;animation:breeze 5s ease-in-out infinite}
.cur.sheer .p.l{left:0}.cur.sheer .p.r{right:0;animation-delay:-2.2s}
/* c) Rèm roman: gấp lớp ngang từ dưới lên */
.cur.roman .sh{position:absolute;left:5%;right:5%;top:10px;height:calc((100% - 10px) * (1 - var(--open) * .78));
  background:
    repeating-linear-gradient(180deg,transparent 0,transparent calc(20% - 12px),rgba(0,0,0,.35) calc(20% - 4px),rgba(255,236,210,.18) calc(20% - 2px),transparent 20%),
    linear-gradient(90deg,rgba(0,0,0,.2),transparent 12%,transparent 88%,rgba(0,0,0,.2)),
    linear-gradient(180deg,var(--c1),var(--c2));
  background-size:100% calc(22% + var(--open) * -12%),100% 100%,100% 100%;
  box-shadow:0 10px 16px -6px rgba(0,0,0,.4);border-bottom:3px solid rgba(0,0,0,.25)}
/* d) Rèm cuốn: tấm phẳng cuộn lên trục */
.cur.roller .sh{position:absolute;left:5%;right:5%;top:18px;height:calc((100% - 18px) * (1 - var(--open) * .92));
  background:linear-gradient(90deg,rgba(0,0,0,.16),transparent 10%,transparent 90%,rgba(0,0,0,.16)),linear-gradient(180deg,var(--c1),var(--c2))}
.cur.roller .sh::after{content:"";position:absolute;left:-2%;right:-2%;bottom:-5px;height:7px;background:#2a2a2a;border-radius:2px}
.cur.roller .tube{position:absolute;left:3%;right:3%;top:6px;height:calc(16px + var(--open) * 8px);border-radius:10px;z-index:2;
  background:linear-gradient(180deg,var(--c2),var(--c1) 45%,var(--c2))}
/* e) Rèm sáo: nan xoay theo độ mở */
.cur.slat .sl{position:absolute;left:5%;right:5%;top:12px;bottom:0;display:flex;flex-direction:column;justify-content:space-between;perspective:500px}
.cur.slat .sl i{display:block;height:6.2%;background:linear-gradient(180deg,var(--c1),var(--c2));
  transform:rotateX(calc(var(--open) * 78deg));box-shadow:0 2px 3px rgba(0,0,0,.25);transition:transform .2s}
.cur.slat .sl::before,.cur.slat .sl::after{content:"";position:absolute;top:0;bottom:0;width:2px;left:18%;background:rgba(230,220,200,.7);z-index:2}
.cur.slat .sl::after{left:auto;right:18%}
/* f) Rèm cầu vồng: hai lớp sọc trượt so le */
.cur.zebra .sh{position:absolute;left:5%;right:5%;top:10px;bottom:6%;overflow:hidden}
.cur.zebra .sh::before,.cur.zebra .sh::after{content:"";position:absolute;left:0;right:0;top:-12%;bottom:-12%;
  background:repeating-linear-gradient(180deg,var(--c1) 0 6%,color-mix(in srgb,var(--c1) 22%,transparent) 6% 12%)}
.cur.zebra .sh::after{transform:translateY(calc(var(--open) * 6%));opacity:.95;
  background:repeating-linear-gradient(180deg,var(--c2) 0 6%,transparent 6% 12%)}
/* Ô giới thiệu: tự đóng mở theo nhịp khi nhìn thấy, đứng yên khi rê chuột = mở hẳn */
.sim-card .win{--open:.1}
.sim-card.in .win{animation:breath 6.5s var(--ease) infinite}
.sim-card:hover .win{animation:none;--open:1;transition:--open 1.1s var(--ease)}
@keyframes breath{0%,12%{--open:.05}45%,62%{--open:1}95%,100%{--open:.05}}

/* =====================================================================
   7. CÁC KHỐI TRANG CHỦ
   ===================================================================== */
.sec{padding:clamp(80px,11vw,150px) 0;position:relative}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:clamp(40px,5vw,64px);flex-wrap:wrap}
.sec-head .lead{margin:0}
.intro-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(40px,7vw,110px);align-items:center}
.intro-media{position:relative}
.intro-media .unveil{aspect-ratio:4/5}
.intro-media .badge{position:absolute;right:-28px;bottom:40px;z-index:3;background:var(--night);color:var(--ivory);padding:24px 28px;text-align:center;box-shadow:0 30px 40px -34px rgba(0,0,0,.8)}
.intro-media .badge b{display:block;font-family:var(--serif);font-weight:400;font-size:54px;line-height:1;color:var(--gold-l)}
.intro-media .badge span{font-size:11px;letter-spacing:.24em;text-transform:uppercase}
.intro-media .unveil.small{position:absolute;left:-40px;top:-40px;width:42%;aspect-ratio:1;z-index:2;border:8px solid var(--ivory)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(42,26,18,.15);margin-top:44px}
.stats div{padding:22px 16px 0 0}
.stats b{display:block;font-family:var(--serif);font-weight:400;font-size:clamp(36px,4vw,52px);line-height:1;color:var(--gold-d)}
.stats span{font-size:13px;color:var(--muted)}

.types{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.sim-card{display:block;color:var(--ivory)}
.sim-card .win{box-shadow:0 44px 52px -46px rgba(0,0,0,.9)}
.sim-card h3{font-size:30px;margin:22px 0 4px;display:flex;justify-content:space-between;align-items:baseline}
.sim-card h3 small{font-family:var(--sans);font-size:12px;letter-spacing:.2em;color:var(--gold-l)}
.sim-card p{color:var(--muted-d);font-size:15px;margin:0}

/* Khối cuộn kéo rèm */
.pull{height:260vh;position:relative;background:var(--night)}
.pull-stick{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;display:grid;place-items:center}
.pull-photo{position:absolute;inset:0}
.pull-photo img{width:100%;height:100%;object-fit:cover;transform:scale(calc(1.25 - var(--p) * .25));filter:brightness(calc(.35 + var(--p) * .55))}
.pull-panel{position:absolute;top:0;bottom:0;width:50.5%;z-index:2;
  background:
    linear-gradient(180deg,rgba(0,0,0,.45),transparent 25%,transparent 75%,rgba(0,0,0,.4)),
    repeating-linear-gradient(90deg,rgba(0,0,0,.42) 0,rgba(0,0,0,.1) 20px,rgba(255,220,190,.11) 40px,rgba(0,0,0,.08) 56px,rgba(0,0,0,.42) 80px),
    linear-gradient(90deg,var(--wine-d),var(--wine) 50%,var(--wine-d))}
.pull-panel.l{left:0;transform-origin:0 0;transform:translateX(calc(var(--p) * -92%)) scaleX(calc(1 - var(--p) * .72))}
.pull-panel.r{right:0;transform-origin:100% 0;transform:translateX(calc(var(--p) * 92%)) scaleX(calc(1 - var(--p) * .72))}
.pull-panel.l::before,.pull-panel.r::before{content:"";position:absolute;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--gold-l),var(--gold-d))}
.pull-panel.l::before{right:0}.pull-panel.r::before{left:0}
.pull-text{position:relative;z-index:3;text-align:center;color:var(--ivory);padding:0 20px;
  opacity:calc(1 - var(--p) * 1.6);transform:translateY(calc(var(--p) * -60px))}
.pull-text2{position:absolute;z-index:3;left:0;right:0;bottom:12vh;text-align:center;color:var(--ivory);padding:0 20px;
  opacity:calc((var(--p) - .65) * 3);transform:translateY(calc((1 - var(--p)) * 40px))}
.pull-hint{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold-l);margin-top:18px}

/* Không gian: dải cuộn ngang */
.spaces{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.space{position:relative;aspect-ratio:3/4;overflow:hidden;color:var(--ivory);display:flex;align-items:flex-end;padding:22px}
.space img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease-out),filter .8s}
.space::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(0deg,rgba(20,12,8,.88),rgba(20,12,8,.05) 55%)}
.space::after{/* vạt voan phủ khi rê chuột */
  content:"";position:absolute;inset:0;z-index:1;background:repeating-linear-gradient(90deg,rgba(247,241,230,.18) 0 2px,transparent 2px 18px);
  transform:translateY(-101%);transition:transform .9s var(--ease)}
.space:hover::after{transform:none}
.space:hover img{transform:scale(1.08)}
.space span{position:relative;z-index:2;font-family:var(--serif);font-size:26px;line-height:1.15}
.space small{position:relative;z-index:2;display:block;font-size:11px;letter-spacing:.25em;text-transform:uppercase;color:var(--gold-l);margin-bottom:6px}

/* Phòng thử rèm */
.studio{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(30px,5vw,70px);align-items:center}
.studio-room{position:relative;padding:40px 40px 0;background:
  linear-gradient(180deg,#e9dfcc,#dccdb3 78%,#a88660 78%,#8a6a48);box-shadow:0 44px 52px -46px rgba(0,0,0,.6)}
.studio-room .win{aspect-ratio:5/4;transition:background 1s}
.studio-room .sofa{height:70px;margin:0 8% -1px;background:linear-gradient(180deg,#6b5545,#4a3728);border-radius:14px 14px 0 0;position:relative;z-index:6}
.studio-room .sofa::before{content:"";position:absolute;left:8%;right:8%;top:-26px;height:34px;border-radius:12px 12px 0 0;background:#7d6552}
.studio-room .lamp{position:absolute;right:6%;bottom:70px;width:4px;height:44%;background:#3a2a1f;z-index:6}
.studio-room .lamp::before{content:"";position:absolute;left:-26px;top:-10px;width:56px;height:38px;background:linear-gradient(180deg,#f3e3c0,#d7bf92);clip-path:polygon(20% 0,80% 0,100% 100%,0 100%)}
.studio-room.nightmode{background:linear-gradient(180deg,#3a2e24,#2c231b 78%,#4a3322 78%,#3a2819)}
.studio-room.nightmode .lamp::before{box-shadow:0 0 60px 30px rgba(255,210,140,.35);background:#ffe3a6}
.ctrl{display:grid;gap:26px}
.ctrl h4{font-family:var(--sans);font-size:11px;letter-spacing:.28em;text-transform:uppercase;font-weight:500;color:var(--gold-d);margin:0 0 12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid rgba(42,26,18,.25);background:transparent;padding:9px 16px;font-size:14px;color:var(--text);transition:all .35s}
.chip:hover{border-color:var(--gold-d)}
.chip[aria-pressed="true"]{background:var(--text);color:var(--ivory);border-color:var(--text)}
.sw{display:flex;gap:10px;flex-wrap:wrap}
.sw button{width:44px;height:44px;border-radius:50%;border:2px solid transparent;padding:3px;background:none}
.sw button{position:relative}
.sw button span:not(.sr){display:block;width:100%;height:100%;border-radius:50%;background:linear-gradient(135deg,var(--a),var(--b))}
.sw button[aria-pressed="true"]{border-color:var(--gold-d)}
.range{width:100%;accent-color:var(--gold-d)}
input[type=range].range{-webkit-appearance:none;appearance:none;height:2px;background:linear-gradient(90deg,var(--gold-d) calc(var(--v,0) * 1%),rgba(42,26,18,.2) 0);outline:none}
input[type=range].range::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--ivory);border:2px solid var(--gold-d);cursor:grab}
input[type=range].range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--ivory);border:2px solid var(--gold-d);cursor:grab}
.studio-note{font-size:14px;color:var(--muted);min-height:3.4em}

/* Quy trình */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:s;position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:1px;background:rgba(227,189,106,.3)}
.steps::after{content:"";position:absolute;left:0;right:0;top:27px;height:1px;background:var(--gold-l);transform-origin:0;transform:scaleX(0);transition:transform 2.4s var(--ease)}
.steps.in::after{transform:scaleX(1)}
.step{position:relative;padding:0 22px 0 0}
.step b{position:relative;z-index:1;display:grid;place-items:center;width:56px;height:56px;border-radius:50%;border:1px solid var(--gold-l);background:var(--night);
  font-family:var(--serif);font-weight:400;font-size:22px;color:var(--gold-l);margin-bottom:22px}
.step h3{font-size:24px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted-d)}

/* Băng logo khách hàng */
.marquee{overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.marquee-track{display:flex;gap:26px;width:max-content;animation:marq 48s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee img{height:78px;width:130px;object-fit:contain;background:#fff;padding:10px;filter:grayscale(1);opacity:.8;transition:filter .5s,opacity .5s}
.marquee img:hover{filter:none;opacity:1}
@keyframes marq{to{transform:translateX(-50%)}}

/* Thẻ sản phẩm / bài viết */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:34px 24px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.card{display:block;position:relative}
.card .unveil{aspect-ratio:1}
.card.tall .unveil{aspect-ratio:4/5}
.card.wide .unveil{aspect-ratio:3/2}
.card h3{font-size:21px;line-height:1.25;margin:16px 0 4px;transition:color .3s}
.card:hover h3{color:var(--gold-d)}
.card .meta{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.card .price{font-size:14px;color:var(--gold-d);font-weight:500}
.card .unveil img{transition:transform 1.6s var(--ease-out)}
.card:hover .unveil img{transform:scale(1.06)}
.card .qv{position:absolute;left:12px;bottom:12px;z-index:3;background:rgba(20,12,8,.8);color:var(--gold-l);font-size:11px;letter-spacing:.2em;text-transform:uppercase;padding:8px 12px;
  opacity:0;transform:translateY(8px);transition:all .45s var(--ease-out)}
.card:hover .qv{opacity:1;transform:none}
.dark .card .meta{color:var(--muted-d)}
.dark .card:hover h3{color:var(--gold-l)}
.card p.ex{font-size:14px;color:var(--muted);margin:6px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* Showroom */
.rooms{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(227,189,106,.2);border:1px solid rgba(227,189,106,.2)}
.room{background:var(--night);padding:30px 28px;transition:background .5s}
.room:hover{background:var(--cocoa)}
.room small{font-size:11px;letter-spacing:.25em;text-transform:uppercase;color:var(--gold-l)}
.room h3{font-size:28px;margin:6px 0 8px}
.room p{font-size:14px;color:var(--muted-d);margin:0 0 12px}
.room a{font-size:15px;color:var(--gold-l)}

/* Dải kêu gọi */
.cta-band{position:relative;overflow:hidden;text-align:center;padding:clamp(90px,12vw,160px) 0;color:var(--ivory);background:var(--wine-d)}
.cta-band::before,.cta-band::after{content:"";position:absolute;top:0;bottom:0;width:22%;
  background:repeating-linear-gradient(90deg,rgba(0,0,0,.4) 0,rgba(0,0,0,.1) 20px,rgba(255,220,190,.1) 40px,rgba(0,0,0,.4) 62px),var(--wine);
  animation:breeze 9s ease-in-out infinite;transform-origin:50% 0}
.cta-band::before{left:0;-webkit-mask:linear-gradient(90deg,#000 40%,transparent);mask:linear-gradient(90deg,#000 40%,transparent)}
.cta-band::after{right:0;-webkit-mask:linear-gradient(270deg,#000 40%,transparent);mask:linear-gradient(270deg,#000 40%,transparent);animation-delay:-4s}
.cta-band .wrap{position:relative;z-index:1}
.cta-band .h2{max-width:18ch;margin-inline:auto}
.cta-band .hero-actions{justify-content:center}

/* =====================================================================
   8. TRANG CON
   ===================================================================== */
.phead{position:relative;padding:170px 0 80px;background:var(--night);color:var(--ivory);overflow:hidden;isolation:isolate}
.phead.has-img{padding:220px 0 90px}
.phead-bg{position:absolute;inset:0;z-index:-2}
.phead-bg img{width:100%;height:100%;object-fit:cover;opacity:.4;animation:kb 18s ease-out forwards}
@keyframes kb{from{transform:scale(1.15)}to{transform:scale(1)}}
.phead::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,var(--night),rgba(20,12,8,.35))}
.phead h1{font-size:clamp(38px,5.6vw,76px);font-weight:400;max-width:20ch;margin:16px 0 14px}
.phead .lead{margin:0}
.crumbs{display:flex;flex-wrap:wrap;gap:6px 10px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-d)}
.crumbs a:hover{color:var(--gold-l)}
.crumbs span[aria-hidden]{color:var(--gold)}
.body-sec{padding:70px 0 110px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:40px}
.filters a,.filters button{border:1px solid rgba(42,26,18,.2);padding:9px 16px;font-size:14px;background:none;color:var(--text);transition:all .3s}
.filters a:hover,.filters button:hover{border-color:var(--gold-d);color:var(--gold-d)}
.filters .on{background:var(--text);color:var(--ivory);border-color:var(--text)}
.count{font-size:13px;color:var(--muted);margin-bottom:22px}

/* Nội dung bài viết */
.prose{font-size:17px;line-height:1.85;color:#3a2a20;max-width:760px}
.prose.wide{max-width:none}
.prose h2{font-size:clamp(28px,3vw,38px);margin:1.6em 0 .5em;color:var(--text)}
.prose h3{font-size:clamp(23px,2.3vw,28px);margin:1.4em 0 .4em;color:var(--text)}
.prose h4{font-size:21px;margin:1.2em 0 .4em}
.prose a{color:var(--gold-d);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.prose img{margin:1.4em auto;height:auto}
.prose figure{margin:1.6em 0}
.prose figure img{margin:0 auto}
.prose figcaption{text-align:center;font-size:14px;color:var(--muted);font-style:italic;margin-top:10px;font-family:var(--serif);font-size:17px}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.35em 0}
.prose li::marker{color:var(--gold-d)}
.prose blockquote{margin:1.6em 0;padding:18px 26px;border-left:2px solid var(--gold);background:var(--cream);font-family:var(--serif);font-size:20px}
.prose blockquote p:last-child{margin:0}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
.prose td,.prose th{border:1px solid var(--sand);padding:8px 12px;text-align:left}
.prose iframe{max-width:100%}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:70px;align-items:start}
.aside{position:sticky;top:100px;display:grid;gap:26px}
.aside-box{background:var(--night);color:var(--ivory);padding:30px}
.aside-box h3{font-size:26px}
.aside-box p{font-size:14px;color:var(--muted-d)}
.aside-box .btn{width:100%;justify-content:center;margin-top:8px}
.aside-list h4{font-family:var(--sans);font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-d);margin-bottom:10px}
.aside-list a{display:block;padding:10px 0;border-bottom:1px solid var(--sand);font-family:var(--serif);font-size:18px;line-height:1.3}
.aside-list a:hover{color:var(--gold-d)}
.post-meta{display:flex;gap:18px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-d);margin-top:6px}
.cover{margin:-40px 0 50px;position:relative;z-index:2}
.cover .unveil{aspect-ratio:16/8}
.pager{display:flex;justify-content:center;gap:6px;margin-top:60px;flex-wrap:wrap}
.pager a,.pager span{min-width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--sand);font-size:14px;padding:0 10px}
.pager .on{background:var(--text);color:var(--ivory);border-color:var(--text)}
.pager a:hover{border-color:var(--gold-d)}

/* Sản phẩm */
.pd{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(34px,5vw,80px);align-items:start}
.gal-main{aspect-ratio:1;background:var(--cream)}
.gal-main img{width:100%;height:100%;object-fit:cover}
.gal-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:10px}
.gal-thumbs button{padding:0;border:1px solid transparent;background:var(--cream);aspect-ratio:1;overflow:hidden}
.gal-thumbs button img{width:100%;height:100%;object-fit:cover;opacity:.7;transition:opacity .3s}
.gal-thumbs button[aria-current="true"]{border-color:var(--gold-d)}
.gal-thumbs button[aria-current="true"] img,.gal-thumbs button:hover img{opacity:1}
.pd-info{position:sticky;top:100px}
.pd-info h1{font-size:clamp(32px,3.6vw,50px);font-weight:400}
.pd-price{font-family:var(--serif);font-size:32px;color:var(--gold-d);margin:6px 0 20px}
.pd-price small{font-family:var(--sans);font-size:13px;color:var(--muted);display:block}
.pd-short{color:var(--muted);font-size:16px}
.pd-short ul{padding-left:1.1em}
.pd-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}
.pd-promise{display:grid;gap:10px;border-top:1px solid var(--sand);padding-top:22px;font-size:14px;color:var(--muted)}
.pd-promise div{display:flex;gap:12px;align-items:center}
.pd-promise .ico{color:var(--gold-d)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}
.tags a{font-size:12px;border:1px solid var(--sand);padding:5px 10px;color:var(--muted)}
.tags a:hover{border-color:var(--gold-d);color:var(--gold-d)}

/* Liên hệ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.form{display:grid;gap:16px}
.form label{display:grid;gap:6px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.form input,.form textarea,.form select{font:inherit;font-size:16px;letter-spacing:0;text-transform:none;color:var(--text);background:transparent;border:0;border-bottom:1px solid var(--sand);padding:10px 0;outline:none;transition:border-color .3s}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--gold-d)}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:13px;color:var(--muted)}
.map{aspect-ratio:4/3;border:0;width:100%;filter:grayscale(.6) sepia(.2)}

/* =====================================================================
   9. CHÂN TRANG
   ===================================================================== */
.ftr{background:var(--night);color:var(--muted-d);padding:90px 0 30px;font-size:14px;position:relative}
.ftr::before{content:"";position:absolute;left:0;right:0;top:0;height:14px;background:repeating-linear-gradient(90deg,var(--gold) 0 1px,transparent 1px 7px);opacity:.4;
  -webkit-mask:linear-gradient(0deg,transparent,#000);mask:linear-gradient(0deg,transparent,#000)}
.ftr-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:50px}
.ftr h4{font-family:var(--sans);font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-l);font-weight:500;margin-bottom:18px}
.ftr a:hover{color:var(--gold-l)}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.ftr .big{font-family:var(--serif);font-size:30px;color:var(--ivory);line-height:1.2;display:block;margin:10px 0 6px}
.socials{display:flex;gap:10px;margin-top:22px}
.socials a{width:40px;height:40px;display:grid;place-items:center;border:1px solid rgba(227,189,106,.35);color:var(--gold-l);transition:all .35s}
.socials a:hover{background:var(--gold);color:var(--night)}
.ftr-bot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid rgba(227,189,106,.15);margin-top:60px;padding-top:24px;font-size:13px}
.ftr-word{font-family:var(--serif);font-size:clamp(60px,15vw,220px);line-height:.9;letter-spacing:.12em;color:transparent;-webkit-text-stroke:1px rgba(227,189,106,.22);text-align:center;margin:40px 0 0;user-select:none}

/* Nút liên hệ nổi */
.float{position:fixed;right:18px;bottom:18px;z-index:40;display:grid;gap:10px}
.float a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--night);color:var(--gold-l);border:1px solid rgba(227,189,106,.5);box-shadow:0 10px 24px rgba(0,0,0,.35);transition:transform .35s var(--ease-out)}
.float a:hover{transform:scale(1.08)}
.float a.call{background:var(--gold);color:var(--night);animation:pulse 2.6s ease-out infinite}
.float .zl{font-weight:700;font-size:13px;letter-spacing:.02em}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,150,42,.55)}70%{box-shadow:0 0 0 16px rgba(201,150,42,0)}100%{box-shadow:0 0 0 0 rgba(201,150,42,0)}}

/* =====================================================================
   10. ĐÁP ỨNG
   ===================================================================== */
@media (max-width:1100px){
  .nav,.hdr-cta{display:none}.burger{display:block}
  .grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:1fr 1fr;gap:34px 20px}.steps::before,.steps::after{display:none}
  .ftr-grid{grid-template-columns:1fr 1fr}
  .spaces{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .intro-grid,.studio,.art-grid,.pd,.contact-grid{grid-template-columns:1fr}
  .aside,.pd-info{position:static}
  .types{grid-template-columns:1fr 1fr;gap:20px}
  .grid,.grid.g3{grid-template-columns:1fr 1fr;gap:26px 14px}
  .rooms{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .intro-media .badge{right:10px}
  .intro-media .unveil.small{left:-10px;top:-24px}
  .voile{width:44vw}
  .card h3{font-size:18px}
}
@media (max-width:560px){
  .wrap{width:calc(100% - 32px)}
  .types,.rooms,.ftr-grid{grid-template-columns:1fr}
  .spaces{grid-template-columns:1fr 1fr;gap:10px}
  .space span{font-size:20px}
  .steps{grid-template-columns:1fr}
  .hdr .wrap{height:70px}
  .brand img{height:38px}
  .hero-foot .hero-dots{display:none}
  .form .row2{grid-template-columns:1fr}
  .studio-room{padding:20px 20px 0}
  .sim-card h3{font-size:26px}
  .pull{height:200vh}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  html.js .stage{display:none}
  .hero .display .ln>span{transform:none}
}
html.js{--intro:2.1s}
html.js.vr-quick{--intro:.6s}
.stage.done{display:none!important}
.pull-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,12,8,.92),rgba(20,12,8,.35) 45%,transparent 70%);opacity:var(--p)}
.hero-foot{padding-right:70px}

/* =====================================================================
   11. THỬ RÈM AI
   ===================================================================== */
.to-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,1fr);gap:28px;align-items:start}
.to-stage{position:relative;border-radius:32px;overflow:hidden;background:#0d0806;min-height:420px;display:grid;place-items:center;touch-action:pan-y;user-select:none}
.to-stage canvas{display:none;width:100%;height:auto}
.has-photo .to-stage canvas{display:block}
.has-photo .to-drop{display:none}
.to-drop{width:100%;min-height:460px;display:grid;place-items:center;text-align:center;padding:40px 24px;border:1.5px dashed rgba(227,189,106,.45);border-radius:32px;transition:background .4s,border-color .4s}
.to-drop.over{background:rgba(227,189,106,.08);border-color:var(--gold-l)}
.to-drop h3{font-size:clamp(26px,3vw,36px);color:var(--ivory);margin:14px 0 6px}
.to-drop p{color:var(--muted-d);font-size:15px;max-width:44ch;margin:0 auto 22px}
.to-drop .orb{width:86px;height:86px;border-radius:50%;margin:0 auto;display:grid;place-items:center;color:var(--gold-l);
  background:radial-gradient(circle at 35% 30%,rgba(227,189,106,.35),rgba(227,189,106,.05) 60%);box-shadow:0 0 0 1px rgba(227,189,106,.35),0 0 50px rgba(227,189,106,.18);animation:orb 3.6s ease-in-out infinite}
.to-drop .orb .ico{width:34px;height:34px}
@keyframes orb{50%{transform:translateY(-6px);box-shadow:0 0 0 1px rgba(227,189,106,.5),0 0 70px rgba(227,189,106,.3)}}
.to-demos{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.to-demos button{border:0;padding:0;background:none;width:96px;border-radius:999px 999px 18px 18px;overflow:hidden;position:relative;aspect-ratio:3/4;box-shadow:0 0 0 1px rgba(227,189,106,.35)}
.to-demos button img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease-out)}
.to-demos button:hover img{transform:scale(1.08)}
.to-demos small{display:block;color:var(--muted-d);font-size:12px;margin-top:6px;letter-spacing:.14em;text-transform:uppercase;width:100%}
.to-scan{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.to-scan::before{content:"";position:absolute;left:0;right:0;height:34%;top:-34%;
  background:linear-gradient(180deg,transparent,rgba(227,189,106,.28) 80%,rgba(255,236,190,.9) 100%);animation:scan 1.3s ease-in-out infinite}
.to-scan::after{content:"";position:absolute;inset:0;background:
  radial-gradient(circle,rgba(227,189,106,.55) 1px,transparent 1.5px) 0 0/22px 22px;opacity:.35;animation:fadeIn .5s both}
@keyframes scan{to{top:100%}}
.to-frame{position:absolute;border:1.5px solid var(--gold-l);border-radius:14px;box-shadow:0 0 0 9999px rgba(20,12,8,.35);cursor:move;touch-action:none}
.to-frame.pop{animation:framePop 1.2s var(--ease-out)}
@keyframes framePop{0%{opacity:0;transform:scale(1.08)}40%{opacity:1}100%{transform:none}}
.to-frame i{position:absolute;width:22px;height:22px;border-radius:50%;background:var(--ivory);border:2px solid var(--gold-d);touch-action:none}
.to-frame i[data-h="tl"]{left:-11px;top:-11px;cursor:nwse-resize}.to-frame i[data-h="tr"]{right:-11px;top:-11px;cursor:nesw-resize}
.to-frame i[data-h="bl"]{left:-11px;bottom:-11px;cursor:nesw-resize}.to-frame i[data-h="br"]{right:-11px;bottom:-11px;cursor:nwse-resize}
.to-frame span{position:absolute;left:12px;top:-30px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--night);background:var(--gold-l);padding:4px 10px;border-radius:999px;white-space:nowrap}
.to-compare{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:var(--ivory);pointer-events:none}
.to-compare::after{content:"‹ ›";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:var(--ivory);color:var(--night);display:grid;place-items:center;font-size:18px;letter-spacing:4px}
.to-compare b{position:absolute;top:14px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;background:rgba(20,12,8,.7);color:var(--ivory);padding:4px 10px;border-radius:999px;white-space:nowrap}
.to-compare b:first-child{right:12px}.to-compare b:last-child{left:12px}
.to-stage.flash::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(255,240,210,.25),transparent 60%);animation:flash .6s ease-out forwards;pointer-events:none}
@keyframes flash{to{opacity:0}}
.to-hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);background:rgba(20,12,8,.72);color:var(--ivory);font-size:12px;letter-spacing:.14em;text-transform:uppercase;padding:8px 16px;border-radius:999px;pointer-events:none;display:none;white-space:nowrap}
.has-photo .to-hint{display:block;animation:fadeIn .6s ease 2s both}
.to-status{min-height:1.6em;margin:14px 4px 0;font-size:14px;color:var(--muted-d)}
.to-status.busy::before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--gold-l);margin-right:10px;animation:pulse 1.2s infinite}
.to-panel{background:rgba(247,241,230,.04);border:1px solid rgba(227,189,106,.18);border-radius:32px;padding:26px;display:grid;gap:22px;color:var(--ivory)}
.to-panel h4{font-family:var(--sans);font-size:11px;letter-spacing:.28em;text-transform:uppercase;font-weight:500;color:var(--gold-l);margin:0 0 12px}
.to-panel .chip{border-color:rgba(227,189,106,.3);color:var(--ivory)}
.to-panel .chip[aria-pressed="true"]{background:var(--gold);color:var(--night);border-color:var(--gold)}
.to-strip{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 10px;scrollbar-width:thin;scrollbar-color:var(--gold-d) transparent}
.to-sw{flex:none;width:78px;scroll-snap-align:center;border:0;background:none;padding:0;color:var(--muted-d);text-align:center}
.to-sw-c{display:block;width:78px;height:96px;border-radius:999px 999px 16px 16px;background:linear-gradient(160deg,var(--a),var(--b));position:relative;overflow:hidden;box-shadow:0 0 0 2px transparent;transition:box-shadow .3s,transform .3s}
.to-sw-c img{position:absolute;right:6px;bottom:6px;width:30px;height:30px;border-radius:50%;object-fit:cover;border:2px solid rgba(255,255,255,.9)}
.to-sw-c::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(0,0,0,.18) 0,rgba(255,255,255,.08) 7px,rgba(0,0,0,.18) 14px)}
.to-sw[aria-pressed="true"] .to-sw-c{box-shadow:0 0 0 2px var(--gold-l);transform:translateY(-3px)}
.to-sw-n{display:block;font-size:11px;line-height:1.35;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.to-now{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-family:var(--serif);font-size:22px;color:var(--ivory)}
.to-now a{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-l);white-space:nowrap}
.to-tools{display:flex;flex-wrap:wrap;gap:8px}
.to-tools .chip{display:inline-flex;gap:8px;align-items:center}
.to-panel input[type=range].range{background:linear-gradient(90deg,var(--gold-l) calc(var(--v,30) * 1%),rgba(247,241,230,.2) 0)}
.to-panel input[type=range].range::-webkit-slider-thumb{background:var(--night);border-color:var(--gold-l)}
.to-check{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--muted-d);cursor:pointer}
.to-check input{accent-color:var(--gold)}
.to-locked{opacity:.4;pointer-events:none;transition:opacity .4s}
.has-photo .to-locked{opacity:1;pointer-events:auto}
.to-how{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.to-how div{border-radius:28px;background:var(--cream);padding:28px}
.to-how b{font-family:var(--serif);font-weight:400;font-size:40px;color:var(--gold-d);line-height:1}
.to-how h3{font-size:24px;margin:10px 0 6px}
.to-how p{font-size:14px;color:var(--muted);margin:0}
.ai-badge{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:6px 14px;font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  background:linear-gradient(90deg,rgba(227,189,106,.2),rgba(227,189,106,.05));border:1px solid rgba(227,189,106,.45);color:var(--gold-l)}
.ai-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold-l);box-shadow:0 0 10px var(--gold-l);animation:pulse 2s infinite}
.nav a.nav-ai{color:var(--gold-l)}
.nav a.nav-ai::before{content:"✦ "}
@media (max-width:980px){.to-wrap{grid-template-columns:1fr}.to-how{grid-template-columns:1fr}}

/* =====================================================================
   12. NGÔN NGỮ MỀM — bo cong như nếp rèm, vòm như vạt màn
   ===================================================================== */
:root{--r:28px;--r-lg:56px;--arch:999px 999px var(--r) var(--r)}
.btn,.chip,.filters a,.filters button,.tags a,.pager a,.pager span,.stage-skip,.burger,.mnav-close,.socials a,.hdr-cta,.card .qv{border-radius:999px}
.btn{padding:15px 30px}
.link-u::after{border-radius:2px}
/* ảnh và thẻ */
.unveil{border-radius:var(--r);isolation:isolate}
.card .unveil{border-radius:var(--r)}
.card.tall .unveil,.grid:not(.g3) .card .unveil{border-radius:999px 999px var(--r) var(--r) / 46% 46% var(--r) var(--r)}
.card{transition:transform .6s var(--ease-out)}
.card:hover{transform:translateY(-6px)}
.card .qv{left:50%;transform:translate(-50%,8px);bottom:16px}
.card:hover .qv{transform:translate(-50%,0)}
.intro-media .unveil{border-radius:999px 999px var(--r) var(--r) / 38% 38% var(--r) var(--r)}
.intro-media .unveil.small{border-radius:50%;border-color:var(--ivory)}
.intro-media .badge{border-radius:999px;width:150px;height:150px;padding:0;display:grid;place-content:center;right:-20px}
.space{border-radius:999px 999px var(--r) var(--r) / 34% 34% var(--r) var(--r)}
.space span{font-size:24px}
.space>div{position:relative;z-index:2;text-align:center;width:100%}
.mega{border-radius:0 0 var(--r-lg) var(--r-lg);margin:8px 12px 0;left:0;right:0}
.mega-feature{border-radius:999px 999px var(--r) var(--r) / 40% 40% var(--r) var(--r);min-height:300px}
/* ô cửa sổ mô phỏng thành cửa vòm */
.win{border-radius:999px 999px 22px 22px / 42% 42% 22px 22px}
.win .frame{border-radius:inherit}
.studio-room{border-radius:var(--r-lg) var(--r-lg) var(--r) var(--r);overflow:hidden}
.studio-room .win{border-radius:999px 999px 18px 18px / 50% 50% 18px 18px}
.cur .rodbar{border-radius:6px}
/* khối trang: tấm bo lớn nổi trên nền ngà */
.sec.dark,.cta-band{border-radius:var(--r-lg);margin-inline:clamp(8px,1.2vw,18px)}
.sec.dark+.sec.dark{margin-top:14px}
.hero{border-radius:0 0 var(--r-lg) var(--r-lg)}
.phead{border-radius:0 0 50% 50% / 0 0 70px 70px}
.pull{border-radius:var(--r-lg);margin:14px clamp(8px,1.2vw,18px)}
.pull-stick{border-radius:var(--r-lg)}
.ftr{border-radius:var(--r-lg) var(--r-lg) 0 0;margin-top:14px}
/* diềm gợn như gấu rèm ở mép trên các khối tối */
.sec.dark::before,.cta-band .wrap::before{content:"";position:absolute;left:8%;right:8%;top:18px;height:14px;pointer-events:none;
  background:radial-gradient(circle at 50% 0,transparent 11px,rgba(227,189,106,.32) 11.5px 12.5px,transparent 13px) 0 0/30px 14px repeat-x;opacity:.8}
.cta-band .wrap::before{top:-60px;left:0;right:0}
.ftr::before{border-radius:var(--r-lg) var(--r-lg) 0 0}
/* gạch trước eyebrow thành vạt cong */
.eyebrow::before{width:30px;height:9px;background:none;border-bottom:1.2px solid currentColor;border-radius:0 0 50% 50%}
/* đầu trang nổi dạng viên thuốc khi cuộn */
.hdr.solid{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:none}
.hdr.solid .wrap{margin-top:10px;background:rgba(20,12,8,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-radius:999px;padding:0 10px 0 24px;box-shadow:0 18px 40px -24px rgba(0,0,0,.7),inset 0 0 0 1px rgba(227,189,106,.18)}
.hdr.solid .has-mega .mega{margin-top:10px}
/* các khối khác */
.rooms{gap:14px;background:none;border:0}
.room{border-radius:var(--r);border:1px solid rgba(227,189,106,.2)}
.aside-box{border-radius:var(--r)}
.aside-box .btn{border-radius:999px}
.gal-main{border-radius:999px 999px var(--r) var(--r) / 30% 30% var(--r) var(--r);overflow:hidden}
.gal-thumbs button{border-radius:16px}
.marquee img{border-radius:20px}
.cover .unveil{border-radius:var(--r-lg)}
.prose img{border-radius:20px}
.prose blockquote{border-radius:0 var(--r) var(--r) 0}
.form input,.form textarea,.form select{border:1px solid var(--sand);border-radius:18px;padding:12px 16px;background:rgba(255,255,255,.4)}
.form textarea{border-radius:22px}
.map{border-radius:var(--r)}
.stats{border-top:0;gap:12px}
.stats div{background:var(--cream);border-radius:var(--r);padding:20px 18px}
.to-how div,.to-panel{border-radius:var(--r)}
.float a.zl{border-radius:50%}
/* rèm sân khấu: mép trong bo tròn khi vén */
.stage-panel.l{border-bottom-right-radius:60% 12%}
.stage-panel.r{border-bottom-left-radius:60% 12%}
@media (max-width:560px){
  :root{--r:22px;--r-lg:34px}
  .phead{border-radius:0 0 50% 50% / 0 0 36px 36px}
  .intro-media .badge{width:120px;height:120px}
  .hdr.solid .wrap{margin-top:8px;width:calc(100% - 16px)}
}
.to-wrap>*{min-width:0}
.to-panel .chips{flex-wrap:wrap}
.to-panel{grid-template-columns:minmax(0,1fr)}
.to-panel>*{min-width:0}
.has-photo .to-stage{min-height:0;display:block}
html,body{overflow-x:clip}
@media (max-width:560px){.mnav a.big,.mnav details summary{font-size:26px;padding:4px 0}.mnav-in{padding-top:76px}}
.has-photo .to-hint{animation:hintLife 5.5s ease 1.8s both}
@keyframes hintLife{0%{opacity:0}12%,75%{opacity:1}100%{opacity:0}}
@media (max-width:560px){.to-hint{font-size:10px;padding:6px 12px;bottom:10px}}

/* =====================================================================
   13. PHÒNG THỬ RÈM — điều khiển ngay trên cảnh (mobile-first)
   ===================================================================== */
.studio-room{padding:0;background:#e9dfcc;transition:background 1s}
.studio-room.nightmode{background:#2f251d}
.st-types{display:flex;gap:8px;overflow-x:auto;padding:16px 18px 12px;scrollbar-width:none;-webkit-overflow-scrolling:touch;position:relative;z-index:7}
.st-types::-webkit-scrollbar{display:none}
.st-types .chip{flex:none;padding:8px 15px;font-size:14px;background:rgba(255,255,255,.55);border-color:rgba(42,26,18,.14)}
.nightmode .st-types .chip{background:rgba(255,255,255,.08);color:var(--ivory);border-color:rgba(227,189,106,.25)}
.st-types .chip[aria-pressed="true"],.nightmode .st-types .chip[aria-pressed="true"]{background:var(--text);color:var(--ivory);border-color:var(--text)}
.nightmode .st-types .chip[aria-pressed="true"]{background:var(--gold);color:var(--night);border-color:var(--gold)}
.st-scene{position:relative;padding:4px 30px 0}
.studio-room .win{touch-action:none;cursor:ew-resize;outline:none}
.studio-room[data-axis="y"] .win{cursor:ns-resize}
.studio-room .win:focus-visible{box-shadow:0 0 0 3px var(--gold)}
.studio-room.dragging .win *{transition:none!important}
.studio-room .lamp{bottom:70px}
.st-pct{position:absolute;left:50%;top:18px;transform:translateX(-50%);z-index:8;pointer-events:none;
  background:rgba(20,12,8,.72);color:var(--gold-l);font-size:12px;letter-spacing:.14em;padding:5px 12px;border-radius:999px;font-variant-numeric:tabular-nums}
.st-time{position:absolute;right:14px;top:6px;z-index:8;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(42,26,18,.2);background:rgba(255,255,255,.7);color:var(--text)}
.st-time .moon,.st-time[aria-pressed="true"] .sun{display:none}
.st-time[aria-pressed="true"] .moon{display:block}
.st-time[aria-pressed="true"]{background:var(--night);color:var(--gold-l);border-color:rgba(227,189,106,.4)}
.st-hint{position:absolute;left:50%;bottom:92px;transform:translateX(-50%);z-index:8;pointer-events:none;display:flex;align-items:center;gap:10px;
  background:rgba(20,12,8,.72);color:var(--ivory);font-size:12px;padding:7px 14px 7px 10px;border-radius:999px;white-space:nowrap;transition:opacity .5s}
.st-hint.gone{opacity:0}
.st-hint i{width:22px;height:22px;border-radius:50%;background:var(--gold-l);box-shadow:0 0 0 4px rgba(227,189,106,.3);animation:nudgeX 1.6s ease-in-out infinite}
.studio-room[data-axis="y"] .st-hint i{animation-name:nudgeY}
@keyframes nudgeX{0%,100%{transform:translateX(-5px)}50%{transform:translateX(5px)}}
@keyframes nudgeY{0%,100%{transform:translateY(4px)}50%{transform:translateY(-4px)}}
.st-floor{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:16px 20px 18px;background:linear-gradient(180deg,#a88660,#8a6a48);position:relative;z-index:7}
.nightmode .st-floor{background:linear-gradient(180deg,#4a3322,#3a2819)}
.st-floor .sw{gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.st-floor .sw button{width:40px;height:40px;flex:none}
.st-floor .sw button[aria-pressed="true"]{border-color:var(--ivory)}
.st-name{font-family:var(--serif);font-size:19px;color:var(--ivory);font-style:italic}
.studio-how{font-size:15px;color:var(--muted)}
.studio-how b{color:var(--text);font-weight:500}
@media (max-width:860px){
  .studio .ctrl{order:-1;gap:14px}
  .studio .ctrl .btn{padding:13px 22px}
}
@media (max-width:560px){
  .st-scene{padding:2px 14px 0}
  .studio-room .win{aspect-ratio:4/4.2}
  .studio-room .sofa{height:54px}
  .studio-room .lamp{bottom:54px;height:36%}
  .st-hint{bottom:70px}
  .st-floor{padding:14px 14px 16px;gap:10px}
  .st-name{width:100%;font-size:17px}
  .studio-how{display:none}
}

/* =====================================================================
   14. THỬ RÈM AI — một thẻ: kiểu rèm ở trên, ảnh ở giữa, mẫu vải ở dưới
   ===================================================================== */
.to{max-width:1080px;margin:0 auto}
.to-card{border-radius:var(--r-lg);overflow:hidden;background:#0d0806;box-shadow:0 0 0 1px rgba(227,189,106,.2),0 50px 60px -50px rgba(0,0,0,.9)}
.to-types{display:flex;gap:8px;overflow-x:auto;padding:14px 16px;scrollbar-width:none;background:rgba(247,241,230,.04);border-bottom:1px solid rgba(227,189,106,.12)}
.to-types::-webkit-scrollbar{display:none}
.to-types .chip{flex:none;padding:8px 15px;font-size:14px;border-color:rgba(227,189,106,.3);color:var(--ivory)}
.to-types .chip[aria-pressed="true"]{background:var(--gold);color:var(--night);border-color:var(--gold)}
.to .to-stage{border-radius:0;min-height:min(62vw,520px);touch-action:auto}
.to.has-photo .to-stage{min-height:0;display:block;touch-action:none;cursor:ew-resize}
.to.has-photo[data-axis="y"] .to-stage{cursor:ns-resize}
.to.editing .to-stage{cursor:default}
.to .to-drop{border-radius:0;border:0;min-height:min(62vw,520px)}
.to-pct,.to-nav,.to-tools,.to-hint{display:none}
.has-photo .to-pct,.has-photo .to-nav,.has-photo .to-tools{display:flex}
.to-pct{position:absolute;left:50%;top:14px;transform:translateX(-50%);background:rgba(20,12,8,.72);color:var(--gold-l);font-size:12px;letter-spacing:.14em;padding:5px 12px;border-radius:999px;pointer-events:none;font-variant-numeric:tabular-nums}
.to-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.5);
  background:rgba(20,12,8,.55);color:var(--ivory);font-size:26px;line-height:1;align-items:center;justify-content:center;padding-bottom:3px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .3s}
.to-nav:hover{background:var(--gold);color:var(--night)}
.to-nav.prev{left:12px}.to-nav.next{right:12px}
.to-tools{position:absolute;right:12px;top:12px;flex-direction:column;gap:8px}
.to-tools button{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,255,255,.45);background:rgba(20,12,8,.55);color:var(--ivory);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:all .3s}
.to-tools button .ico{width:18px;height:18px}
.to-tools button:hover{border-color:var(--gold-l)}
.to-tools button[aria-pressed="true"]{background:var(--gold);color:var(--night);border-color:var(--gold)}
.to-tools button[data-floor][aria-pressed="true"]{background:rgba(20,12,8,.55);color:var(--gold-l);border-color:var(--gold-l)}
.to-hint{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);align-items:center;gap:10px}
.has-photo .to-hint:not(.gone){display:flex}
.to-hint::before{content:"";width:18px;height:18px;border-radius:50%;background:var(--gold-l);box-shadow:0 0 0 4px rgba(227,189,106,.3);animation:nudgeX 1.6s ease-in-out infinite}
.to[data-axis="y"] .to-hint::before{animation-name:nudgeY}
.to.dragging canvas{cursor:grabbing}
.to-fabrics{padding:14px 16px 16px;background:rgba(247,241,230,.04);border-top:1px solid rgba(227,189,106,.12)}
.to-fabrics .to-now{font-size:19px}
.to-fabrics .to-strip{margin-top:10px}
.to .to-status{text-align:center}
.to-cta{display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:22px;text-align:center}
.to-cta p{width:100%;margin:0;font-size:13px;color:var(--muted-d)}
.ai-home{margin-top:14px}
.ai-home .h2{max-width:16ch}
@media (max-width:560px){
  .to-card{border-radius:26px}
  .to-nav{width:36px;height:36px;font-size:22px}
  .to-nav.prev{left:6px}.to-nav.next{right:6px}
  .to-tools{right:6px;top:6px;gap:6px}
  .to-tools button{width:34px;height:34px}
  .to-tools button .ico{width:16px;height:16px}
  .to-pct{top:8px}
  .to-hint{font-size:10px;bottom:8px;padding:5px 10px 5px 8px}
  .to-sw{width:64px}.to-sw-c{width:64px;height:80px}
  .to .to-drop{padding:26px 16px}
  .to-demos button{width:78px}
}
.to .to-hint{animation:fadeIn .6s ease 1.6s both}
.to .to-hint.gone{display:none!important}
/* công cụ nằm ở dải mẫu vải, không che ảnh */
.to-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.to-head .to-now{flex:1 1 220px;justify-content:flex-start;gap:14px}
.to .to-tools{position:static;flex-direction:row;gap:8px}
.to-tools button{background:rgba(247,241,230,.06);border-color:rgba(227,189,106,.35)}
.to-tools button[data-floor][aria-pressed="true"]{background:rgba(247,241,230,.06)}
.to-pct{left:auto;right:12px;transform:none}
@media (max-width:560px){.to-head{gap:10px}.to .to-tools{width:100%;justify-content:space-between}.to-tools button{width:40px;height:40px}.to-pct{right:8px}}

/* =====================================================================
   15. SỬA HIỂN THỊ & TỐI ƯU ĐỘ MƯỢT
   ===================================================================== */
/* nội dung bài không bao giờ rộng quá màn hình */
.art-grid>*,.pd>*,.contact-grid>*,.intro-grid>*,.studio>*{min-width:0}
.prose{overflow-wrap:anywhere}
.prose img,.prose video,.prose iframe{max-width:100%;height:auto}
.prose iframe{aspect-ratio:16/9;width:100%}
.prose table{max-width:100%}
.prose pre{white-space:pre-wrap}
@media (max-width:860px){
  .intro-grid,.studio,.art-grid,.pd,.contact-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:560px){.intro-media .badge{right:6px;bottom:20px}}

/* mô phỏng rèm: chỉ dùng transform (không tính lại bố cục mỗi khung hình) */
.cur.drape .p,.cur.sheer .p{width:51%;transition:scale .9s var(--ease)}
.cur.drape .p.l,.cur.sheer .p.l{transform-origin:0 0}
.cur.drape .p.r,.cur.sheer .p.r{transform-origin:100% 0}
.cur.drape .p{scale:calc(1 - var(--open) * .75) 1}
.cur.sheer .p{scale:calc(1 - var(--open) * .67) 1}
.cur.roman .sh{height:calc(100% - 10px);transform-origin:50% 0;scale:1 calc(1 - var(--open) * .78);background-size:100% 22%,100% 100%,100% 100%}
.cur.roller .sh{height:calc(100% - 18px);transform-origin:50% 0;scale:1 calc(1 - var(--open) * .92)}
.cur.roller .tube{height:16px;transform-origin:50% 0;scale:1 calc(1 + var(--open) * .5)}
.cur .p,.cur .sh,.cur .tube,.cur.slat .sl i{will-change:transform}
/* chỉ "thở" khi đang nhìn thấy */
.sim-card.in .win{animation:none}
.sim-card.play .win{animation:breath 6.5s var(--ease) infinite}
.sim-card:hover .win{animation:none}

/* tia nắng: bỏ hoà trộn màu trên lớp lớn */
.rays{mix-blend-mode:normal;opacity:.28;will-change:transform}
/* kéo rèm theo cuộn: tối/sáng bằng lớp phủ, không lọc ảnh */
.pull-photo img{filter:none}
.pull-photo::before{content:"";position:absolute;inset:0;z-index:1;background:#000;opacity:calc(.62 - var(--p) * .52);pointer-events:none}
.pull-photo::after{z-index:1}
.pull-panel,.pull-photo img{will-change:transform}
/* nút gọi: vòng sáng bằng transform/opacity thay cho bóng đổ */
.float a.call{animation:none;position:relative}
.float a.call::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--gold);animation:ring 2.6s ease-out infinite;pointer-events:none}
@keyframes ring{0%{transform:scale(1);opacity:.7}70%,100%{transform:scale(1.55);opacity:0}}
/* dừng mọi hoạt ảnh lặp khi khối đã khuất màn hình */
.off,.off *,.off *::before,.off *::after{animation-play-state:paused!important}
/* thẻ ngoài màn hình không cần vẽ */
.grid .card{content-visibility:auto;contain-intrinsic-block-size:auto 420px}
.voile span{will-change:transform}
/* kính mờ trên điện thoại tốn GPU khi cuộn — thay bằng nền đặc hơn */
@media (max-width:860px){
  .hdr.solid .wrap{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(20,12,8,.94)}
  .to-nav{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(20,12,8,.7)}
  .voile span:nth-child(3){display:none}
}
.to-tools button{-webkit-backdrop-filter:none;backdrop-filter:none}
.off::before,.off::after{animation-play-state:paused!important}
.sim-card:not(.play) .cur *{animation-play-state:paused!important}

.grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.types{grid-template-columns:repeat(3,minmax(0,1fr))}
.spaces{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1100px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}.spaces{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){.grid,.grid.g3,.types{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.types{grid-template-columns:minmax(0,1fr)}.spaces{grid-template-columns:repeat(2,minmax(0,1fr))}}