/* =====================================================================
   M.cons v6 · "Phòng tối": một nền tối từ đầu đến cuối, trong đó các
   công trình và số đo được chiếu sáng như hiện vật.
   Quy tắc (Taste Skill): 2 font, 5 cỡ chữ, không nhãn nhỏ trên tiêu đề,
   không chữ mono, không đường kẻ mảnh, không bóng đổ, không gradient,
   tiêu đề tối đa 2 dòng. Màu đỏ chỉ cho nút hành động chính, vàng chỉ
   cho con số nghiệm thu.
   Chạy tốt từ 320px đến 2560px, tai thỏ / Dynamic Island, thanh điều
   hướng Android, xoay ngang, bàn phím ảo.
   ===================================================================== */
@font-face{font-family:"Big Shoulders Display";src:url(../fonts/big-shoulders-display.woff) format("woff");font-weight:100 900;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/be-vietnam-pro-Regular.woff) format("woff");font-weight:400;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/be-vietnam-pro-Medium.woff) format("woff");font-weight:500;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/be-vietnam-pro-SemiBold.woff) format("woff");font-weight:600 700;font-display:swap}
:root{
  --bg:#0B0B0C; --surface:#151517; --surface-2:#1E1E21; --card:#24211E;
  --ink:#ECECEA; --muted:#B3B1AC; --accent:#FF3B2F; --accent-ink:#0B0B0C; --measure:#FFC400;
  --paper:#ECECEA; --paper-ink:#0B0B0C; --paper-muted:#45443F;
  --display:"Big Shoulders Display","Arial Narrow","Roboto Condensed",Impact,sans-serif;
  --text:"Be Vietnam Pro","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  /* 5 cỡ chữ cho cả trang */
  --fs-display:clamp(52px,13vw,200px);
  --fs-h2:clamp(34px,6vw,88px);
  --fs-h3:clamp(22px,2.4vw,34px);
  --fs-body:17px;
  --fs-small:14px;
  /* lề trang: bằng nhau hai bên, tính cả tai thỏ khi xoay ngang */
  --safe-x:max(env(safe-area-inset-left,0px),env(safe-area-inset-right,0px));
  --m:max(16px,clamp(16px,2.6vw,40px),calc(var(--safe-x) + 12px));
  --gap:clamp(12px,1.6vw,24px);
  --section:clamp(88px,12vw,200px);
  --ease-out:cubic-bezier(.22,1,.36,1); --ease-expo:cubic-bezier(.16,1,.3,1); --ease-in-out:cubic-bezier(.76,0,.24,1); --ease-soft:cubic-bezier(.33,1,.68,1);
  --t-press:140ms; --t-hover:180ms; --t-ui:240ms; --t-reveal:800ms;
  --vh:1vh; --svh:1vh;
  --bar:0px;
  color-scheme:dark;
}
@supports (height:100svh){:root{--svh:1svh}}
@supports (height:100dvh){:root{--vh:1dvh}}

/* ---------- nền tảng ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(76px + env(safe-area-inset-top,0px))}
body{margin:0;background:var(--bg);color:var(--ink);font:400 var(--fs-body)/1.6 var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip;min-height:100%;padding-bottom:var(--bar)}
img,video,svg{display:block;max-width:100%}
img,video{height:auto}
a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:.07em}
p{margin:0}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:700;line-height:1;letter-spacing:-.01em;text-transform:uppercase;text-wrap:balance;overflow-wrap:break-word}
h1{font-size:var(--fs-h2)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);line-height:1.05}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--measure);outline-offset:3px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:var(--m);top:-60px;z-index:100;background:var(--ink);color:var(--bg);padding:10px 14px}
.skip:focus{top:calc(8px + env(safe-area-inset-top,0px))}
::selection{background:var(--measure);color:var(--bg)}
.wrap{padding-inline:var(--m);max-width:1920px;margin-inline:auto}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--gap)}
.muted{color:var(--muted)}
.small{font-size:var(--fs-small);line-height:1.5}
.lead{font-size:clamp(17px,1.5vw,21px);line-height:1.55;max-width:46ch;color:var(--ink)}
.num{font-variant-numeric:tabular-nums}
section{padding-block:var(--section)}
section+section{padding-top:0}
.head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(16px,2vw,28px) var(--gap);align-items:end;margin-bottom:clamp(40px,5vw,72px)}
.head>:only-child{grid-column:1/-1}
@media (max-width:860px){.head{grid-template-columns:1fr}}
.head .lead{color:var(--ink)}

/* ---------- nút, liên kết ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:14px 24px;border:0;border-radius:0;background:var(--surface-2);color:var(--ink);font:600 17px/1.2 var(--text);text-decoration:none;text-align:center;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:transform var(--t-press) var(--ease-out),background-color var(--t-hover) ease,color var(--t-hover) ease}
.btn-red{background:var(--accent);color:var(--accent-ink)}
.btn:active{transform:scale(.97)}
.link{font-weight:600;text-decoration:underline;text-decoration-color:color-mix(in srgb,currentColor 45%,transparent);transition:text-decoration-color var(--t-hover) ease,color var(--t-hover) ease}
@media (hover:hover) and (pointer:fine){
  .btn:hover{background:#2B2B2F}.btn-red:hover{background:#FF5A50}
  .link:hover{text-decoration-color:currentColor}
  .go:hover{color:var(--ink)}
}
.go{color:var(--ink);font-weight:600;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:.3em}

/* ---------- đầu trang ---------- */
.top{position:absolute;inset:0 0 auto;z-index:50;padding-top:env(safe-area-inset-top,0px);background:var(--bg);transition:transform var(--t-ui) var(--ease-out)}
.top.hide{transform:translateY(-100%)}
.top .wrap{display:flex;align-items:center;gap:clamp(12px,2.4vw,32px);min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand svg{width:34px;height:34px}
.brand b{font:700 21px/1 var(--display);letter-spacing:.04em}
.nav{display:flex;gap:clamp(8px,1.8vw,28px);margin-left:auto}
.nav a{text-decoration:none;font-weight:500;font-size:17px;padding:10px 2px;color:var(--muted);transition:color var(--t-hover) ease}
.nav a[aria-current="page"],.nav a:hover{color:var(--ink)}
.top-call{font:700 21px/1 var(--display);letter-spacing:.03em;text-decoration:none;white-space:nowrap;color:var(--ink);padding:10px 0}
.menu-btn{display:none;margin-left:auto;min-height:44px;padding:10px 4px;background:none;border:0;font:600 16px var(--text);color:var(--ink);cursor:pointer}
.sheet{position:fixed;inset:0;z-index:60;background:var(--bg);padding:calc(16px + env(safe-area-inset-top,0px)) var(--m) calc(24px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:8px;overflow-y:auto;overscroll-behavior:contain}
.sheet[hidden]{display:none}
.sheet .row{display:flex;justify-content:space-between;align-items:center;min-height:56px}
.sheet a.big{font:700 clamp(34px,9vw,56px)/1.1 var(--display);text-transform:uppercase;text-decoration:none;padding:6px 0}
.sheet .foot{margin-top:auto;display:grid;gap:12px;padding-top:24px}
main{display:block;padding-top:calc(64px + env(safe-area-inset-top,0px))}
.home main,.home-wrap main{padding-top:0}
@media (max-width:1100px){.nav,.top-call{display:none}.menu-btn{display:block}}

/* ---------- thanh gọi nhanh trên điện thoại ---------- */
.callbar{display:none}
@media (max-width:760px){
  :root{--bar:calc(64px + env(safe-area-inset-bottom,0px))}
  .callbar{display:grid;grid-template-columns:1.4fr 1fr;gap:8px;position:fixed;inset:auto 0 0;z-index:45;background:var(--bg);padding:8px var(--m) calc(8px + env(safe-area-inset-bottom,0px));transform:translateY(110%);transition:transform var(--t-ui) var(--ease-out)}
  .callbar.show{transform:none}
  .callbar .btn{min-height:48px;padding:10px 12px}
}

/* ---------- 1. Hero: tấm thẻ trên nền công trường tối ---------- */
.hero{position:relative;min-height:calc(100 * var(--svh));display:grid;place-items:center;padding:calc(80px + env(safe-area-inset-top,0px)) var(--m) calc(40px + var(--bar));overflow:clip}
.hero-media{position:absolute;inset:0;background:#141414}
.hero-media img,.hero-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.7)}
.hero-media video{opacity:0;transition:opacity 1s ease}
.hero-media video.on{opacity:1}
.hero-card{position:relative;width:min(100%,max(1060px,55vw));min-height:min(62svh,640px);background:var(--card);padding:clamp(20px,2.6vw,36px);display:grid;grid-template-rows:auto 1fr auto;gap:clamp(20px,3vw,40px)}
.hero-card h1{font-size:clamp(34px,5.4vw,84px);display:flex;justify-content:space-between;flex-wrap:wrap;gap:.1em .4em;line-height:1}
.hero-body{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);align-content:end}
.hero-facts{font:700 var(--fs-h3)/1.05 var(--display);text-transform:uppercase}
.hero-sentence{font-size:21px;font-family:var(--text);font-weight:400;line-height:1.45;max-width:34ch;text-transform:none}
.hero-foot{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--gap)}
.hero-foot .small{color:var(--muted)}
.hero-foot .link{justify-self:end}
@media (max-width:760px){
  .hero{place-items:end center;padding-inline:max(8px,var(--safe-x))}
  .hero-card{width:100%;min-height:auto;gap:22px}
  .hero-card h1{font-size:clamp(28px,8.4vw,48px);display:block}
  .hero-card h1 span{display:inline}
  .hero-body{grid-template-columns:1fr;gap:16px}
  .hero-facts{font-size:clamp(22px,6vw,30px)}
  .hero-sentence{font-size:17px}
  .hero-foot{grid-template-columns:1fr;gap:14px}
  .hero-foot .btn{width:100%}
  .hero-foot .link{justify-self:start}
  .hero-foot .small{order:3}
}
@media (max-height:520px) and (orientation:landscape){
  .hero{min-height:auto;padding-top:calc(84px + env(safe-area-inset-top,0px))}
  .hero-card{min-height:auto}
}

/* ---------- 2. Người thật: tấm panel lõm, ảnh cắt vát góc ---------- */
.about{padding-inline:clamp(10px,1.4vw,20px)}
.about-panel{background:var(--surface);min-height:min(110svh,1100px);display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:var(--gap);padding:clamp(28px,4vw,56px);overflow:clip;position:relative}
.about-panel h2{max-width:12ch}
.about-shape{align-self:end;margin:clamp(40px,6vw,80px) 0 calc(-1 * clamp(28px,4vw,56px));width:min(38vw,560px);aspect-ratio:4/5;clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);overflow:clip}
.about-shape img{width:100%;height:100%;object-fit:cover}
.about-text{display:grid;gap:clamp(36px,5vw,64px);align-content:start;padding-top:clamp(0px,6vw,96px);max-width:440px}
.about-text h3{margin-bottom:12px}
.about-text p{color:var(--ink)}
.facts{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:clamp(20px,3vw,40px)}
.facts b{display:block;font:700 var(--fs-h2)/1 var(--display);color:var(--measure);white-space:nowrap}
.facts span{font-size:var(--fs-small);color:var(--muted)}
@media (max-width:900px){
  .about-panel{grid-template-columns:1fr;min-height:auto;padding:28px 20px 0}
  .about-panel h2{max-width:none}
  .about-text{padding-top:0;max-width:none}
  .about-shape{width:100%;margin:28px 0 0}
  .about-panel{padding-bottom:28px}
}

/* ---------- 3. Dịch vụ: một cảnh đứng yên, các câu bước dần ---------- */
.svc-scene{position:relative;height:calc(var(--steps,5) * 70 * var(--svh) + 100 * var(--svh));padding:0}
.svc-stage{position:sticky;top:0;height:calc(100 * var(--svh));overflow:clip}
.svc-stage>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.svc-scrim{position:absolute;inset:0 0 auto;height:42%;background:rgba(11,11,12,.72)}
.svc-list{position:absolute;left:50%;top:calc(88px + env(safe-area-inset-top,0px));transform:translateX(-50%);width:min(92vw,520px);list-style:none;display:grid;gap:10px;text-align:center}
.svc-list li{font-size:21px;line-height:1.35;color:var(--muted);transition:color var(--t-ui) ease}
.svc-list li a{text-decoration:none}
.svc-list li.on{color:var(--ink);font-weight:600}
.svc-list li.on a{text-decoration:underline;text-decoration-color:var(--accent)}
.svc-list h2{font:600 21px/1.35 var(--text);text-transform:none;letter-spacing:0;color:inherit}
.svc-pics{position:absolute;inset:0;pointer-events:none}
.svc-pics figure{position:absolute;margin:0;opacity:0;transform:translateY(24px);transition:opacity 500ms var(--ease-out),transform 700ms var(--ease-out)}
.svc-pics figure.on{opacity:1;transform:none}
.svc-pics img{width:100%;height:auto}
.svc-pics .l{left:var(--m);top:46%;width:clamp(160px,15vw,240px)}
.svc-pics .r{right:var(--m);top:58%;width:clamp(150px,13vw,210px)}
.svc-markers{position:absolute;inset:0;pointer-events:none}
.svc-markers i{display:block;height:calc(70 * var(--svh))}
@media (max-width:760px){
  .svc-scrim{inset:auto 0 0;height:50%}
  .svc-list{top:auto;bottom:calc(24px + var(--bar));left:var(--m);transform:none;width:calc(100% - 2 * var(--m));text-align:left}
  .svc-list li,.svc-list h2{font-size:17px}
  .svc-pics .l{display:none}
  .svc-pics .r{top:calc(80px + env(safe-area-inset-top,0px));right:var(--m);width:44vw}
}
@media (prefers-reduced-motion:reduce),(max-height:520px) and (orientation:landscape){
  .svc-scene{height:auto}
  .svc-stage{position:relative;height:auto;min-height:calc(100 * var(--svh))}
  .svc-list li{color:var(--ink)}
  .svc-pics figure{opacity:1;transform:none}
  .svc-pics .l{display:none}
}

/* ---------- 4. Vật tư: tên hãng viết thành một câu ---------- */
.names h2{color:var(--ink);margin-bottom:24px}
.names-line{font:400 var(--fs-h3)/1.3 var(--text);color:var(--muted);max-width:52ch}
.names-line span{transition:color 400ms ease}
.names-line span.on{color:var(--ink)}

/* ---------- 5. Số đo: mỗi điểm dừng một màn hình ---------- */
.stops-intro{padding-bottom:clamp(40px,5vw,72px)}
.stops{padding:0}
.stop{position:relative;min-height:calc(100 * var(--svh));display:grid;grid-template-rows:1fr auto;overflow:clip;background:var(--surface);padding:calc(72px + env(safe-area-inset-top,0px)) var(--m) calc(var(--m) + var(--bar))}
.stop:nth-child(2){background:#18191B}.stop:nth-child(3){background:#121314}.stop:nth-child(4){background:#1A1816}
.stop-media{position:absolute;inset:0}
.stop-media img,.stop-media video{width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.stop-num{position:relative;z-index:1;display:grid;place-items:center}
.stop-num strong{display:block;font:700 clamp(84px,17vw,300px)/.85 var(--display);color:var(--measure);font-variant-numeric:tabular-nums;letter-spacing:-.02em;white-space:nowrap}
.stop-text{position:relative;z-index:2;max-width:560px;background:rgba(11,11,12,.88);padding:clamp(16px,2vw,24px)}
.stop-text h3{margin-bottom:8px}
@media (max-width:1100px){.stop{min-height:auto;gap:clamp(40px,8vw,80px);padding-block:clamp(72px,12vw,120px)}}
@media (max-width:760px){.stop-num strong{font-size:min(24vw,180px)}}
@media (max-height:520px) and (orientation:landscape){.stop{min-height:auto;gap:24px}.stop-num strong{font-size:22vh}}
@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){
  .stop-num strong{animation:numin linear both;animation-timeline:view();animation-range:entry 10% cover 45%}
  @keyframes numin{from{opacity:.2;transform:scale(.88)}to{opacity:1;transform:none}}
}}

/* ---------- 6. Công trình: tên lớn, khung xem trước cố định ---------- */
.work .grid{align-items:start}
.work-list{grid-column:1/9;list-style:none}
.work-list li+li{margin-top:22px}
.work-list a{display:flex;flex-direction:column;gap:6px;text-decoration:none;padding:10px 0;color:var(--muted);transition:color var(--t-hover) ease}
.work-list a .t{font:700 var(--fs-h2)/1 var(--display);text-transform:uppercase;min-width:0;max-width:100%}
.work-list a .d{font-size:17px;color:var(--muted);min-width:0;max-width:100%}
.work-list a.on,.work-list a:focus-visible{color:var(--ink)}
.work-frame{grid-column:9/13;position:sticky;top:15vh;aspect-ratio:4/5;background:var(--surface);overflow:clip}
.work-frame>div{position:absolute;inset:0;display:grid;place-items:center;padding:12%;opacity:0;transition:opacity 200ms ease}
.work-frame>div.on{opacity:1}
.work-frame svg{width:100%;height:auto}
.work-frame p{position:absolute;left:16px;right:16px;bottom:14px;font-size:var(--fs-small);color:var(--muted)}
.work .more{margin-top:40px}
.work-pic{display:none}
@media (max-width:900px){
  .work-list{grid-column:1/-1}
  .work-frame{display:none}
  .work-list a{color:var(--ink);flex-direction:column;gap:6px}
  .work-list a .t{font-size:clamp(30px,9vw,48px)}
  .work-list a{align-items:stretch}
  .work-pic{display:block;aspect-ratio:16/10;background:var(--surface);padding:6% 14%;margin-bottom:12px}
  .work-pic svg{width:100%;height:100%}
  .work-list li+li{margin-top:40px}
}

/* ---------- 7. Bảng giá: đặt như thực đơn ---------- */
.menu-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,1fr) minmax(0,8fr);gap:var(--gap)}
.menu-side{display:grid;gap:24px;align-content:start}
.menu-side h2{font-size:var(--fs-h3)}
.menu-side figure{margin:0;aspect-ratio:4/5;overflow:clip}
.menu-side img{width:100%;height:100%;object-fit:cover}
.menu-cols{grid-column:3;display:grid;grid-template-columns:1fr 1fr;gap:0 64px}
.menu-group h3{font:600 21px/1.3 var(--text);text-transform:none;letter-spacing:0;margin:0 0 22px}
.menu-group+.menu-group{margin-top:0}
.menu-row{margin-bottom:22px}
.menu-row .r{display:flex;justify-content:space-between;align-items:baseline;gap:16px;font-size:21px;font-weight:600}
.menu-row .r .p{font-variant-numeric:tabular-nums;white-space:nowrap}
.menu-row p{color:var(--muted);font-size:17px;max-width:36ch;margin-top:4px}
.menu-row.pick .r .p{color:var(--measure)}
.menu-note{margin-top:28px;color:var(--muted);font-size:var(--fs-small);max-width:70ch}
@media (max-width:1000px){.menu-grid{grid-template-columns:1fr}.menu-cols{grid-column:1;grid-template-columns:1fr 1fr;gap:0 32px}.menu-side figure{display:none}}
@media (max-width:640px){.menu-cols{grid-template-columns:1fr}.menu-row .r{font-size:17px}.menu-group+.menu-group{margin-top:24px}}

/* ---------- 8. Dự toán: thứ duy nhất khách tự bấm ---------- */
.est{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:var(--gap)}
.panel{background:var(--surface);padding:clamp(20px,2.6vw,36px)}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
label{display:grid;gap:8px;font-weight:500;font-size:17px;align-content:start}
input,select,textarea{width:100%;min-height:52px;padding:12px 14px;font-size:17px;background:var(--bg);color:var(--ink);border:1.5px solid #3A3A3F;border-radius:0;-webkit-appearance:none;appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23B3B1AC' stroke-width='2'/%3E%3C/svg%3E");background-position:calc(100% - 16px) 50%;background-repeat:no-repeat;padding-right:44px}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--ink);outline:none}
.hint{font-size:var(--fs-small);color:var(--muted);font-weight:400}
.err{font-size:var(--fs-small);color:#FF7A70}.err:empty{display:none}
.result{display:grid;gap:16px;align-content:start}
.result .label{font-size:17px;color:var(--muted)}
.big{font:700 var(--fs-h2)/1 var(--display);color:var(--measure);font-variant-numeric:tabular-nums}
.rows{display:grid;gap:2px}
.rows div{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;background:var(--surface-2);font-size:14px}
.rows div span:last-child{font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
@media (max-width:960px){.est{grid-template-columns:1fr}}
@media (max-width:520px){.fields{grid-template-columns:1fr}}

/* ---------- 9. Kiến thức: ảnh cố định, danh sách sáng dần ---------- */
.read .grid{align-items:start}
.read-pic{grid-column:1/6;position:sticky;top:12vh;aspect-ratio:4/5;overflow:clip;background:var(--surface)}
.read-pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 300ms ease}
.read-pic img.on{opacity:1}
.read-list{grid-column:7/13;list-style:none}
.read-list h2{margin-bottom:48px}
.read-list li a{display:block;text-decoration:none;padding:14px 0}
.read-list .t{font:600 21px/1.3 var(--text);color:var(--muted);transition:color var(--t-hover) ease;display:flex;justify-content:space-between;gap:16px}
.read-list .t small{font-size:14px;font-weight:400;white-space:nowrap}
.read-list .s{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--t-ui) var(--ease-out)}
.read-list .s>span{overflow:hidden;color:var(--muted);font-size:17px;max-width:44ch}
.read-list li.on .t{color:var(--ink)}
.read-list li.on .s{grid-template-rows:1fr}
.read-list li.on .s>span{padding-top:8px}
@media (max-width:900px){
  .read-pic{grid-column:1/-1;position:relative;top:0;aspect-ratio:16/10;margin-bottom:32px}
  .read-list{grid-column:1/-1}
  .read-list .t{color:var(--ink)}
  .read-list .s{grid-template-rows:1fr}
  .read-list .s>span{padding-top:6px}
}

/* ---------- 10. Hỏi đáp: câu hỏi lớn, trả lời bên cạnh ---------- */
.qa{display:grid;gap:clamp(48px,6vw,84px)}
.qa-row{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,1fr) minmax(0,5fr);gap:var(--gap);align-items:start}
.qa-row h3,.qa-row h2{font:500 var(--fs-h3)/1.15 var(--text);text-transform:none;letter-spacing:0}
.qa-row h2{color:var(--muted)}
.qa-row p{grid-column:3;font-size:17px;line-height:1.55;max-width:42ch}
@media (max-width:760px){.qa-row{grid-template-columns:1fr;gap:12px}.qa-row p{grid-column:1}.qa-row h3,.qa-row h2{font-size:21px}}

/* ---------- 11. Gửi yêu cầu ---------- */
.contact{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:var(--gap)}
.contact-info h2{font-size:clamp(34px,4.6vw,72px)}
.contact-info{display:grid;gap:22px;align-content:start}
.contact-info dl{display:grid;gap:16px;margin:0}
.contact-info dt{font-size:17px;color:var(--muted)}
.contact-info dd{margin:2px 0 0;font-size:17px;overflow-wrap:anywhere}
.contact-info .tel{font:700 var(--fs-h2)/1 var(--display);text-decoration:none;color:var(--ink)}
.areas{display:flex;flex-wrap:wrap;gap:6px}
.areas span{background:var(--surface-2);padding:6px 12px;font-size:14px}
.form{display:grid;gap:18px;align-content:start}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:17px;font-weight:400;line-height:1.5;color:var(--ink)}
.consent input{width:24px;height:24px;min-height:0;flex:0 0 24px;padding:0;margin-top:1px;accent-color:var(--accent);-webkit-appearance:checkbox;appearance:auto}
.done-box{background:var(--surface-2);padding:18px;display:grid;gap:12px}
.done-box pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.5 var(--text);margin:0;background:var(--bg);padding:12px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px}
.copy{background:var(--surface-2);border:0;min-height:36px;padding:6px 12px;margin-left:10px;font-size:14px;cursor:pointer;vertical-align:middle}
@media (max-width:960px){.contact{grid-template-columns:1fr}}

/* ---------- 12. Số điện thoại thành chữ lớn (nền sáng, đảo màu) ---------- */
.call{background:var(--paper);color:var(--paper-ink);min-height:calc(100 * var(--svh));display:grid;grid-template-rows:auto 1fr auto auto;padding:clamp(28px,4vw,56px) var(--m) calc(clamp(28px,4vw,56px) + var(--bar))}
.call h2{font:500 21px/1.4 var(--text);text-transform:none;letter-spacing:0;max-width:30ch}
.call .fit{display:block;font:700 clamp(64px,17.5vw,300px)/.9 var(--display);text-decoration:none;color:var(--paper-ink);white-space:nowrap;margin-bottom:12vh;align-self:end;transition:color var(--t-hover) ease}
.call .corners{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 32px;font-size:14px;color:var(--paper-muted)}
.call .corners a{color:var(--paper-ink)}
@media (hover:hover) and (pointer:fine){.call .fit:hover{color:var(--accent)}}
@media (max-width:1100px){.call{min-height:auto;row-gap:clamp(48px,10vw,120px)}.call .fit{margin-bottom:0}}
@media (max-width:760px){.call .fit{font-size:clamp(48px,15.5vw,120px);margin-bottom:8vh}.call .corners{flex-direction:column}}

/* ---------- 13. Chân trang: tên chạy ngang tấm ảnh cuối ---------- */
.foot{position:relative;min-height:calc(100 * var(--svh));display:grid;grid-template-rows:auto 1fr auto;overflow:clip;color:var(--paper);padding:clamp(28px,3vw,40px) var(--m) calc(24px + var(--bar))}
.foot>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.foot>*{position:relative}
.foot-top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-top ul{list-style:none;display:grid;gap:6px;font-size:17px}
.foot-top a{text-decoration:none}
.foot-top a:hover{text-decoration:underline}
.foot-top .right{text-align:right}
.foot-name{font:700 clamp(96px,26vw,520px)/.8 var(--display);letter-spacing:-.01em;white-space:nowrap;margin:0;align-self:end}
.foot-legal{font-size:14px;line-height:1.5;color:#D8D7D3;margin-top:14px;max-width:75ch}
@media (max-width:760px){.foot{min-height:calc(88 * var(--svh))}.foot-top{flex-direction:column}.foot-top .right{text-align:left}}

/* =====================================================================
   Trang con
   ===================================================================== */
.crumbs{list-style:none;display:flex;flex-wrap:wrap;gap:4px 10px;font-size:var(--fs-small);color:var(--muted);padding-top:clamp(20px,3vw,40px)}
.crumbs li+li::before{content:"/";margin-right:10px;color:#5A5955}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.p-hero{padding-block:clamp(28px,4vw,56px) var(--section)}
.p-hero .grid{align-items:end;row-gap:32px}
.p-hero-text{grid-column:1/8;display:grid;gap:clamp(18px,2.4vw,28px)}
.p-hero-text h1{font-size:var(--fs-h2);max-width:16ch}
.p-hero-pic{grid-column:9/13;margin:0;aspect-ratio:4/5;overflow:clip;background:var(--surface)}
.p-hero-pic img,.p-hero-pic svg{width:100%;height:100%;object-fit:cover}
.p-hero-pic.draw{display:grid;place-items:center;padding:10%}
.p-hero .cta{display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(150px,45%),1fr));gap:24px var(--gap);margin-top:8px}
.kpis b{display:block;font:700 var(--fs-h2)/1 var(--display);color:var(--measure)}
.kpis span{font-size:var(--fs-small);color:var(--muted)}
@media (max-width:900px){.p-hero-text,.p-hero-pic{grid-column:1/-1}.p-hero-pic{aspect-ratio:16/10}}

.two{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,1fr) minmax(0,4fr);gap:var(--gap);align-items:start}
.two>aside{grid-column:3}
@media (max-width:960px){.two{grid-template-columns:1fr}.two>aside{grid-column:1;position:static}}
.prose{max-width:720px;min-width:0}
.prose>*+*{margin-top:18px}
.prose p,.prose li{font-size:17px;line-height:1.75}
.prose h2{font-size:var(--fs-h3);margin-top:84px}
.prose h3{font:600 21px/1.3 var(--text);text-transform:none;letter-spacing:0;margin-top:28px}
.prose ul,.prose ol{padding-left:1.3em;display:grid;gap:10px}
.prose a{color:var(--ink);text-decoration-color:var(--accent)}
.prose b,.prose strong{font-weight:600}
.tbl{overflow-x:auto;-webkit-overflow-scrolling:touch}
.prose table{border-collapse:collapse;width:100%;font-size:17px}
.tbl table{min-width:min(420px,100%)}
.prose td,.prose th{border:1px solid #34343A;padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--surface);font-weight:600}
.callout{background:var(--surface);padding:20px 22px}
.meta{font-size:var(--fs-small);color:var(--muted)}
.vid-box{aspect-ratio:9/16;max-width:min(380px,100%);background:#000}
.vid-box video{width:100%;height:100%;object-fit:contain}
.side{background:var(--surface);padding:24px;display:grid;gap:14px}
.side .tel{font:700 var(--fs-h3)/1 var(--display);text-decoration:none}
.side ul{list-style:none;display:grid;gap:8px;font-size:17px;color:var(--ink)}
.side ul li::before{content:"";display:inline-block;width:8px;height:8px;background:var(--measure);margin-right:10px;vertical-align:middle}
.side .btn{width:100%}

/* danh sách hàng: tiêu đề trái, mô tả phải */
.rows-list{list-style:none;display:grid;gap:clamp(28px,3vw,44px)}
.rows-list a{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,1fr) minmax(0,5fr);gap:var(--gap);text-decoration:none;align-items:baseline}
.rows-list h3{transition:color var(--t-hover) ease}
.rows-list p{grid-column:3;color:var(--muted);font-size:17px}
@media (hover:hover) and (pointer:fine){.rows-list a:hover h3{color:var(--measure)}}
@media (max-width:760px){.rows-list a{grid-template-columns:1fr;gap:8px}.rows-list p{grid-column:1}}

/* thẻ công trình trên trang con */
.proj{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:clamp(28px,3vw,40px) var(--gap)}
.card{display:grid;gap:14px;align-content:start}
.card .art{aspect-ratio:4/3;background:var(--surface);display:grid;place-items:center;padding:8%;overflow:clip}
.card .art svg{width:100%;height:100%}
.card h3 a{text-decoration:none}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:0;font-size:17px}
.card dt{color:var(--muted)}.card dd{margin:0}
.card .meta{margin-top:-6px}
.proj>.card:only-child{grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:var(--gap)}
.proj>.card:only-child .art{grid-row:1/span 5}
@media (max-width:760px){.proj>.card:only-child{grid-template-columns:1fr}.proj>.card:only-child .art{grid-row:auto}}

/* các bước: không đánh số trang trí, thứ tự do vị trí */
.steps{list-style:none;display:grid;gap:4px;padding:0!important}
.steps li{background:var(--surface);padding:20px 22px}
.steps h3{font:600 21px/1.3 var(--text);text-transform:none;letter-spacing:0;margin:0 0 6px}
.steps p{font-size:17px!important}

/* quy trình */
.qt-group{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,1fr) minmax(0,7fr);gap:var(--gap);padding-block:clamp(36px,4vw,56px)}
.qt-group h2{font-size:var(--fs-h3);position:sticky;top:calc(96px + env(safe-area-inset-top,0px));align-self:start}
.qt-items{grid-column:3;display:grid;gap:4px}
.qt-item{padding:18px 0;display:grid;grid-template-columns:72px 1fr;gap:14px}
.qt-item .n{font-weight:600;font-variant-numeric:tabular-nums;color:var(--muted);font-size:14px;padding-top:3px}
.qt-item h3{font:600 21px/1.3 var(--text);text-transform:none;letter-spacing:0;margin-bottom:6px}
.qt-item p{font-size:17px}
.qt-item.stop-pt{background:#221E14;padding-inline:20px}
.qt-item.stop-pt .n{color:var(--measure)}
.qt-item .flag{display:inline-block;margin-left:10px;font-size:14px;font-weight:600;color:var(--measure)}
@media (min-width:1200px){.qt-group{grid-template-columns:minmax(0,3fr) minmax(0,9fr)}.qt-items{grid-column:2;grid-template-columns:1fr 1fr;column-gap:clamp(24px,3vw,48px);align-items:start}}
@media (max-width:860px){.qt-group{grid-template-columns:1fr}.qt-items{grid-column:1}.qt-group h2{position:static}.qt-item{grid-template-columns:1fr;gap:4px}}

.big404{font:700 clamp(120px,30vw,360px)/.8 var(--display);color:var(--measure)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{background:var(--surface-2);padding:12px 16px;text-decoration:none;font-size:17px}

/* ---------- chuyển động: lối vào từng phần, cách nhau 70ms ---------- */
@media (prefers-reduced-motion:no-preference){
  .js [data-reveal]>*{opacity:.3;transform:translateY(22px);transition:opacity 700ms var(--ease-out),transform 900ms var(--ease-out)}
  .js [data-reveal].is-in>*{opacity:1;transform:none}
  .js [data-reveal].is-in>*:nth-child(2){transition-delay:70ms}
  .js [data-reveal].is-in>*:nth-child(3){transition-delay:140ms}
  .js [data-reveal].is-in>*:nth-child(4){transition-delay:210ms}
  .js [data-reveal].is-in>*:nth-child(5){transition-delay:280ms}
  .js [data-reveal].is-in>*:nth-child(n+6){transition-delay:350ms}
  .js .shutter{clip-path:inset(0 0 100% 0);transition:clip-path 1100ms var(--ease-in-out)}
  .js .shutter img{transform:scale(1.1);transition:transform 1500ms var(--ease-soft)}
  .js .shutter.is-in{clip-path:inset(0)}
  .js .shutter.is-in img{transform:none}
  .js .hero-card>*{opacity:0;transform:translateY(14px);animation:rise 600ms var(--ease-out) forwards}
  .js .hero-card>*:nth-child(2){animation-delay:120ms}.js .hero-card>*:nth-child(3){animation-delay:240ms}
  .hero-media img{animation:drift 14s var(--ease-soft) both}
  @keyframes rise{to{opacity:1;transform:none}}
  @keyframes drift{from{transform:scale(1.08)}to{transform:none}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* in */
@media print{.top,.callbar,.sheet,.svc-pics,video{display:none!important}body{background:#fff;color:#000}}

/* dải ảnh thật trên trang con: ba khổ khác nhau, đáy thẳng hàng */
.band-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr) minmax(0,3fr);gap:var(--gap);align-items:end}
.band-grid figure{margin:0;display:grid;gap:10px}
.band-grid img{width:100%;object-fit:cover}
.band-0 img{aspect-ratio:4/5}.band-1 img{aspect-ratio:1/1}.band-2 img{aspect-ratio:3/4}
.band-grid figcaption{font-size:var(--fs-small);color:var(--muted)}
@media (max-width:760px){.band-grid{grid-template-columns:1fr 1fr}.band-0{grid-column:1/-1}.band-0 img{aspect-ratio:16/10}}

/* vùng chạm tối thiểu 44px cho liên kết dạng chữ */
.link,.go,.card h3 a,.side .tel,.hero-foot .link{display:inline-block;padding-block:9px}
.brand{min-height:44px}
.contact-info dd a{display:inline-block;padding-block:8px}