/* Nội Thất Kendo: giao diện website, bản 3 (phong cách tạp chí nội thất).
   Ảnh lớn, chữ tiêu đề có chân (Playfair Display), thân chữ Be Vietnam Pro, màu trung tính ấm, nhấn đồng thau. */
:root{--ink:#0f1730;--navy:#13204a;--navy-2:#1d3278;--paper:#f6f9fe;--sand:#e9f0fb;--sand-2:#d6e2f6;--walnut:#1a2f6e;--brass:#2a5bd7;--brass-d:#1b3fa8;--muted:#56607a;--line:#dce4f2;--white:#fff;--good:#12805c;--r:14px;--sh:0 1px 2px rgba(15,23,48,.05),0 10px 30px rgba(15,23,48,.07);--sh-l:0 24px 60px rgba(15,23,48,.2);--serif:'Playfair Display',Georgia,'Times New Roman',serif;--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16.5px;line-height:1.72;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--brass-d);text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid #8fb0ff;outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.18;color:var(--ink);margin:0 0 .5em;letter-spacing:-.01em;text-wrap:balance;font-weight:600}
h1{font-size:clamp(34px,5.2vw,64px);font-weight:600}
h2{font-size:clamp(28px,3.6vw,42px)}
h3{font-size:21px}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em}
.wrap{width:min(1200px,100% - 44px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}.skip:focus{left:8px}
.ic{width:1.2em;height:1.2em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none;display:inline-block;vertical-align:-.2em}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-family:var(--font);font-size:12.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--brass-d);margin-bottom:16px}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor}
.dark .eyebrow,.hero .eyebrow,.band .eyebrow{color:#9fbcff}
/* ===== Thanh trên và menu ===== */
.topline{background:#0f1a3d;color:#c9d3f5;font-size:13px}
.topline .wrap{display:flex;justify-content:space-between;gap:12px;padding:8px 0;flex-wrap:wrap}
.topline a{color:#fff;text-decoration:none;font-weight:600}
.topline span{display:inline-flex;align-items:center;gap:7px}
.hd{position:sticky;top:0;z-index:50;background:rgba(246,249,254,.94);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line);transition:background .25s,border-color .25s}
.hd .wrap{display:flex;align-items:center;gap:18px;padding:13px 0}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);line-height:1.1}
.logo .mark{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:22px;font-weight:600;position:relative;flex:none}
.logo .mark::after{content:"";position:absolute;right:-1px;top:-1px;width:11px;height:11px;border-radius:50%;background:#ff8a1f;border:2px solid var(--paper)}
.logo b{display:block;font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.logo small{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.hd nav{margin-left:auto;display:flex;align-items:center;gap:2px}
.hd nav a{padding:9px 13px;border-radius:99px;text-decoration:none;color:var(--ink);font-weight:500;font-size:15px;position:relative}
.hd nav a:hover{color:var(--brass-d)}
.hd nav a[aria-current="page"]{color:var(--brass-d);font-weight:600}
.hd nav a.cta{background:var(--ink);color:#fff;font-weight:600;margin-left:10px;padding:11px 22px}
.hd nav a.cta:hover{background:var(--brass);color:#fff}
.burger,.mt{display:none}
/* trang chủ: menu nổi trên ảnh, đặc lại khi cuộn */
.home .topline{display:none}
.home .hd{position:fixed;left:0;right:0;top:0;background:transparent;border-color:transparent;backdrop-filter:none}
.home .hd:not(.solid) .logo,.home .hd:not(.solid) nav a:not(.cta){color:#fff}
.home .hd:not(.solid) .logo small{color:#d5e0f8}
.home .hd:not(.solid) .logo .mark{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.5)}
.home .hd:not(.solid) .logo .mark::after{border-color:#0d1836}
.home .hd:not(.solid) nav a:hover{color:#9fbcff}
.home .hd:not(.solid) nav a.cta{background:var(--brass)}
.home .hd.solid{background:rgba(246,249,254,.96);backdrop-filter:saturate(1.4) blur(12px);border-color:var(--line)}
/* ===== Nút ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 28px;border-radius:99px;font-weight:600;text-decoration:none;border:1.5px solid transparent;font-size:15.5px;cursor:pointer;font-family:inherit;line-height:1.2;transition:transform .15s,box-shadow .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-1px)}
.btn.p{background:var(--brass);color:#fff;box-shadow:0 8px 22px rgba(42,91,215,.38)}.btn.p:hover{background:var(--brass-d);color:#fff}
.btn.s{background:var(--ink);color:#fff}.btn.s:hover{background:var(--walnut);color:#fff}
.btn.o{background:transparent;border-color:var(--ink);color:var(--ink)}.btn.o:hover{background:var(--ink);color:#fff}
.btn.w{background:#fff;color:var(--ink)}.btn.w:hover{background:var(--sand);color:var(--ink)}
.btn.g{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55);backdrop-filter:blur(6px)}.btn.g:hover{background:#fff;color:var(--ink)}
.row{display:flex;gap:12px;flex-wrap:wrap}
/* ===== Hero ảnh toàn khung ===== */
.hero{position:relative;min-height:min(100vh,860px);display:flex;flex-direction:column;justify-content:flex-end;color:#fff;overflow:hidden;background:#0d1836}
.hero .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 60%}
.hero .shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,15,38,.82) 0%,rgba(8,15,38,.55) 42%,rgba(8,15,38,.05) 78%),linear-gradient(0deg,rgba(8,15,38,.7) 0%,transparent 38%),linear-gradient(180deg,rgba(8,15,38,.55) 0%,transparent 22%)}
.hero .in{position:relative;z-index:2;padding:150px 0 56px;max-width:1200px}
.hero h1{color:#fff;max-width:760px;margin-bottom:.35em;text-shadow:0 2px 30px rgba(0,0,0,.25)}
.hero h1 em{font-style:italic;color:#9fbcff}
.hero p.lead{font-size:19px;color:#dfe8fb;max-width:560px;margin-bottom:30px}
.strip{position:relative;z-index:2;padding-bottom:30px}
.strip .grid{gap:0;background:rgba(8,15,38,.5);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);overflow:hidden}
.strip .sf{display:flex;gap:14px;align-items:center;padding:20px 24px;color:#fff}
.strip .sf+.sf{border-left:1px solid rgba(255,255,255,.14)}
.strip .sf .ic{width:30px;height:30px;color:#9fbcff}
.strip .sf b{display:block;font-family:var(--font);font-weight:600;font-size:15.5px;line-height:1.3}
.strip .sf span{font-size:13.5px;color:#c4d2f2;line-height:1.4;display:block}
.credit{position:absolute;right:14px;top:14px;z-index:3;font-size:11.5px;color:#d5e0f8;opacity:.7}.credit a{color:inherit}
.crumbs{font-size:13.5px;color:var(--muted);padding:18px 0 0}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--brass-d);text-decoration:underline}.crumbs span{margin:0 8px;opacity:.55}
.pagehead{padding:22px 0 34px}
.pagehead .lead{font-size:19px;color:var(--muted);max-width:760px}
/* Đầu trang con: chữ trái, ảnh phải */
.phero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:30px 0 60px}
.phero h1{font-size:clamp(32px,4.4vw,54px)}
.phero .lead{font-size:18.5px;color:var(--muted)}
.photo{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-l);background:var(--sand)}
.photo img{width:100%;height:100%;object-fit:cover}
.photo.tall{aspect-ratio:5/6}.photo.wide{aspect-ratio:4/3}
.photo .credit{top:auto;bottom:10px;right:12px}
/* ===== Khối chung ===== */
section{padding:96px 0}
.alt{background:var(--sand)}
.white{background:#fff}
.dark{background:linear-gradient(135deg,#0c1533,#1b3a8a);color:#d5e0f8}.dark h2,.dark h3{color:#fff}
.sec-h{max-width:720px;margin-bottom:46px}
.sec-h.c{margin-inline:auto;text-align:center}.sec-h.c .eyebrow{justify-content:center}
.sec-h p{color:var(--muted);font-size:18px;margin:0}
.dark .sec-h p{color:#bccaee}
.grid{display:grid;gap:26px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:26px;min-width:0}
a.card{text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
a.card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);margin:0 0 .7em;font-size:15.5px}
.card .more{margin-top:auto;padding-top:6px}
.more{color:var(--brass-d);font-weight:600;display:inline-flex;align-items:center;gap:8px;font-size:15px}
a.card:hover .more .ic,a.tile:hover .go .ic{transform:translateX(4px)}.more .ic,.go .ic{transition:transform .15s}
.thumb{border-radius:10px;overflow:hidden;margin:-10px -10px 18px;aspect-ratio:3/2;background:var(--sand)}
.thumb img,.thumb svg{width:100%;height:100%;object-fit:cover}
.pill{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:99px;background:var(--sand);color:var(--ink);align-self:flex-start}
.pill.g{background:#dff3ea;color:var(--good)}.pill.o{background:#e3ecff;color:var(--brass-d)}
/* Ô ảnh dịch vụ */
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
a.tile{position:relative;display:block;border-radius:var(--r);overflow:hidden;aspect-ratio:3/4.3;color:#fff;text-decoration:none;background:#0d1836;isolation:isolate}
a.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.2,1);z-index:-2}
a.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,15,38,.94) 0%,rgba(8,15,38,.74) 36%,rgba(8,15,38,.18) 68%,rgba(8,15,38,0) 100%);z-index:-1}
a.tile:hover img{transform:scale(1.06)}
a.tile .cap{position:absolute;left:0;right:0;bottom:0;padding:26px 24px}
a.tile .k{font-family:var(--serif);font-style:italic;color:#9fbcff;font-size:15px}
a.tile h3{color:#fff;font-size:24px;margin:2px 0 8px;text-shadow:0 1px 12px rgba(0,0,0,.4)}
a.tile p{font-size:14.5px;color:#d5e0f8;margin:0 0 14px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
a.tile .go{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14.5px;color:#fff;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:3px}
/* Vì sao: số lớn */
.nums{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid rgba(255,255,255,.18)}
.nums>div{padding:30px 28px 10px 0;border-right:1px solid rgba(255,255,255,.12);padding-left:28px}
.nums>div:first-child{padding-left:0}.nums>div:last-child{border-right:0}
.nums b{display:block;font-family:var(--serif);font-style:italic;font-weight:500;font-size:46px;line-height:1;color:#9fbcff;margin-bottom:18px}
.nums h3{font-size:20px;color:#fff}
.nums p{color:#bccaee;font-size:15.5px;margin:0}
/* Vật liệu */
.mat{padding:0;overflow:hidden}
.mat .sw{height:130px;position:relative}
.mat .in{padding:22px 24px 24px}
.mat .pr{display:inline-block;margin-top:6px;font-size:13.5px;font-weight:600;color:var(--brass-d);border:1px solid #bfd1fa;background:#eef3ff;padding:3px 12px;border-radius:99px}
.sw.melamine{background:repeating-linear-gradient(92deg,rgba(80,50,25,.14) 0 2px,transparent 2px 8px),linear-gradient(135deg,#c79a68,#a77849)}
.sw.petg{background:linear-gradient(135deg,#eef0f3 0%,#d3d9e2 45%,#fafbfd 52%,#c2cad7 100%)}
.sw.acrylic{background:linear-gradient(135deg,#27396b,#13204a)}
.sw.acrylic::after,.sw.glass::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.34) 42%,transparent 54%)}
.sw.glass{background:linear-gradient(135deg,#34404c,#5b6b7a);border-bottom:8px solid #cdd1d8}
/* Quy trình */
.timeline{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;position:relative}
.timeline::before{content:"";position:absolute;left:6%;right:6%;top:27px;height:1px;background:repeating-linear-gradient(90deg,#b6c6e6 0 7px,transparent 7px 13px)}
.timeline li{counter-increment:s;position:relative;text-align:center;padding:0 4px}
.timeline li::before{content:counter(s,decimal-leading-zero);display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--paper);border:1px solid var(--ink);color:var(--ink);font-family:var(--serif);font-style:italic;font-weight:500;font-size:19px;margin:0 auto 16px;position:relative}
.alt .timeline li::before{background:var(--sand)}
.timeline li:nth-child(3)::before,.timeline li:nth-child(6)::before{background:var(--ink);color:#fff}
.timeline b{display:block;font-family:var(--font);color:var(--ink);font-size:16px;line-height:1.3;margin-bottom:6px}
.timeline span{font-size:14px;color:var(--muted);line-height:1.55;display:block}
.steps{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.steps li{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:26px;counter-increment:s}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--serif);font-style:italic;color:var(--brass);font-size:32px;line-height:1;margin-bottom:14px}
.steps b{display:block;color:var(--ink);margin-bottom:6px;font-size:17px}
.steps span{color:var(--muted);font-size:15px;display:block}
/* Bảng giá */
.tbl{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:15px}
.tbl th{background:var(--ink);color:#fff;text-align:left;padding:13px 18px;font-weight:600;font-size:14px;letter-spacing:.03em}
.tbl td{padding:12px 18px;border-top:1px solid var(--line);vertical-align:top}
.tbl tbody tr:nth-child(even) td{background:#f8faff}
.tbl td.r,.tbl th.r{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.tbl td:first-child{font-weight:600;color:var(--ink)}
.note{font-size:14px;color:var(--muted)}
.scroll{overflow-x:auto;border-radius:var(--r)}
.callout{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-left:4px solid var(--brass);border-radius:10px;padding:16px 20px;margin-top:16px}
.callout .ic{width:26px;height:26px;color:var(--brass-d)}
/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px}
.faq details[open]{box-shadow:var(--sh)}
.faq summary{padding:19px 24px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center;font-size:16.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;line-height:1;color:var(--brass-d)}
.faq details[open] summary::after{content:"–";background:var(--ink);border-color:var(--ink);color:#fff}
.faq details div{padding:0 24px 20px;color:var(--ink)}
.faq details p{margin:0}
/* Bài viết */
.tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-d);margin-bottom:8px}
.meta{font-size:13.5px;color:var(--muted);margin-top:auto;padding-top:8px}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:56px;align-items:start}
.prose{max-width:760px;font-size:17.5px}
.prose h2{margin-top:1.8em;font-size:30px}
.prose h2::before{content:"";display:block;width:40px;height:2px;background:var(--brass);margin-bottom:14px}
.prose ul{padding-left:1.3em}.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--brass)}
.prose .tbl{margin:18px 0 8px}
.prose p:first-of-type{font-size:19.5px;color:#2b2a2f;font-family:var(--serif);line-height:1.6}
figure.ph{margin:0 0 1.6em}
figure.ph img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r);box-shadow:var(--sh);background:var(--sand)}
figure.ph figcaption{font-size:13px;color:var(--muted);margin-top:8px}
figure.ph figcaption a{color:var(--muted)}
.prose figure.ph{margin:2em 0}
.aside{position:sticky;top:96px;display:grid;gap:18px}
.toc{padding:22px}.toc b{display:block;font-family:var(--serif);font-size:18px;margin-bottom:10px}
.toc ol{margin:0;padding-left:1.2em;font-size:15px}.toc li{margin-bottom:7px}.toc a{text-decoration:none;color:var(--ink)}.toc a:hover{color:var(--brass-d)}
.mini-cta{background:var(--ink);color:#fff;border:0}
.mini-cta h3,.mini-cta p{color:#fff}.mini-cta p{opacity:.85}
/* Dải kêu gọi có ảnh nền */
.band{position:relative;overflow:hidden;border-radius:22px;color:#fff;isolation:isolate;background:#0d1836}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,15,38,.88),rgba(8,15,38,.55));z-index:-1}
.band .in{padding:60px 56px;display:flex;gap:28px;justify-content:space-between;align-items:center;flex-wrap:wrap}
.band h2{color:#fff;margin:0 0 8px;font-size:clamp(26px,3.2vw,38px)}.band p{margin:0;color:#d5e0f8;max-width:520px}
/* Bộ lọc dự án */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.chips button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:9px 18px;font-weight:600;color:var(--ink);cursor:pointer;font-family:inherit;font-size:14.5px}
.chips button[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.areas{display:flex;gap:10px;flex-wrap:wrap}
.areas span{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:99px;padding:9px 18px;font-weight:600;color:var(--ink)}
.areas .ic{color:var(--brass)}
/* Khung giữ chỗ ảnh công trình (chưa có ảnh thật) */
.blank{display:grid;place-items:center;text-align:center;background:radial-gradient(circle at 30% 20%,#eef3ff,#d6e2f8);color:var(--walnut);width:100%;height:100%;min-height:150px;position:relative;font-size:13.5px}
.blank b{display:block;font-family:var(--serif);font-size:56px;font-weight:600;line-height:1;opacity:.28}
.blank span{display:block;margin-top:6px;letter-spacing:.1em;text-transform:uppercase;font-size:11.5px;opacity:.7}
/* Số liệu giới thiệu / liên hệ */
.fact{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}
.fact .ic{width:46px;height:46px;padding:12px;border-radius:50%;background:var(--sand);color:var(--brass-d)}
.fact b{display:block;color:var(--ink);font-size:17px;line-height:1.3}
.fact span{font-size:14.5px;color:var(--muted);line-height:1.5;display:block;margin-top:2px}
/* ===== Báo giá nhanh ===== */
.q-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:28px;align-items:start}
.q-steps{display:flex;gap:10px 28px;flex-wrap:wrap;margin:0 0 24px;padding:0;list-style:none;counter-reset:q}
.q-steps li{counter-increment:q;display:flex;align-items:center;gap:10px;font-weight:600;color:var(--ink);font-size:15px}
.q-steps li::before{content:counter(q);display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:14px}
.q-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.q-tabs button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:10px 20px;font-weight:600;color:var(--ink);cursor:pointer;font-family:inherit;font-size:15px}
.q-tabs button[aria-selected="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.q-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
.q-row:last-child{border-bottom:0}
.q-row input[type=checkbox]{width:22px;height:22px;accent-color:var(--brass)}
.q-row .nm{font-weight:600;color:var(--ink);font-size:16.5px}
.q-row .ctl{display:flex;gap:8px;flex-wrap:wrap;margin-top:7px}
.q-row select,.q-row input[type=number],.f input,.f textarea,.f select{font:inherit;padding:10px 12px;border:1px solid #cbd6ec;border-radius:10px;background:#fff;color:var(--ink);min-width:0;max-width:100%}
.q-row input[type=number]{width:92px}
.q-row .amt{text-align:right;font-weight:700;color:var(--ink);font-size:15px;white-space:nowrap}
.q-sum{position:sticky;top:90px}
.q-total{font-family:var(--serif);font-size:34px;font-weight:600;color:var(--brass-d);line-height:1.15}
.f{display:flex;flex-direction:column;gap:5px;font-size:14px;color:var(--muted);margin-bottom:12px}
.f input,.f textarea{width:100%}
.ai-box{background:#fff;border:1.5px dashed var(--brass);border-radius:var(--r);padding:22px;margin-bottom:24px}
.ai-box textarea{width:100%;font:inherit;padding:12px;border:1px solid #cbd6ec;border-radius:10px;min-height:76px}
.msg-ok{background:#dff3ea;color:#0b5a40;border-radius:10px;padding:11px 14px;margin-top:10px}
.q-bar{display:none}
/* ===== Chân trang ===== */
.ft{background:#0a1230;color:#a9b8dc;padding:72px 0 100px;font-size:15px}
.ft h3{color:#fff;font-family:var(--font);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.14em;margin-bottom:16px}
.ft a{color:#d5e0f8;text-decoration:none}.ft a:hover{color:#fff;text-decoration:underline}
.ft ul{list-style:none;margin:0;padding:0}.ft li{margin-bottom:9px}
.ft .grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.ft .brand{display:flex;align-items:center;gap:12px;color:#fff;font-family:var(--serif);font-weight:700;font-size:21px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px}
.ft .brand .mark{width:42px;height:42px;border-radius:50%;background:var(--navy);display:grid;place-items:center;font-size:22px;letter-spacing:0}
.ft p{margin:0 0 .6em}
.ft .bar{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;color:#7183b3;font-size:13.5px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
/* ===== Nút nổi, chat ===== */
.fab{position:fixed;left:16px;bottom:16px;z-index:60;display:flex;gap:8px}
.fab a{display:flex;align-items:center;gap:7px;padding:12px 18px;border-radius:99px;color:#fff;font-weight:600;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.28);font-size:15px}
.fab .call{background:var(--brass)}.fab .zl{background:#0068ff}
.chat-btn{position:fixed;right:16px;bottom:16px;z-index:60;background:var(--ink);color:#fff;border:0;border-radius:99px;padding:13px 22px;font-weight:600;font-family:inherit;font-size:15px;box-shadow:0 8px 24px rgba(0,0,0,.3);cursor:pointer}
.chat-btn::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;background:#4ade80;margin-right:9px;box-shadow:0 0 0 4px rgba(74,222,128,.25)}
.chat{position:fixed;right:16px;bottom:74px;z-index:70;width:min(390px,calc(100% - 32px));max-height:min(580px,calc(100vh - 100px));background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 22px 60px rgba(0,0,0,.3);display:none;flex-direction:column;overflow:hidden}
.chat.on{display:flex}
.chat header{background:var(--ink);color:#fff;padding:15px 18px;display:flex;justify-content:space-between;align-items:center;font-weight:600}
.chat header button{background:none;border:0;color:#fff;font-size:22px;cursor:pointer}
.chat .log{padding:14px;overflow:auto;flex:1;display:flex;flex-direction:column;gap:8px;background:var(--paper)}
.chat .b,.chat .u{padding:10px 14px;border-radius:15px;max-width:88%;font-size:15px;white-space:pre-wrap;line-height:1.55}
.chat .b{background:#fff;border:1px solid var(--line);align-self:flex-start}
.chat .u{background:var(--ink);color:#fff;align-self:flex-end}
.chat .qk{display:flex;gap:6px;flex-wrap:wrap;padding:8px 12px 0;background:var(--paper)}
.chat .qk button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 12px;font-size:13px;cursor:pointer;font-family:inherit;color:var(--ink)}
.chat>form{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);background:#fff}
.chat>form input{flex:1;font:inherit;padding:10px 13px;border:1px solid var(--line);border-radius:10px;min-width:0}
.chat>form button{background:var(--brass);color:#fff;border:0;border-radius:10px;padding:0 18px;font-weight:600;cursor:pointer;font-family:inherit}
.prev-banner{background:#fff3cd;color:#664d03;text-align:center;padding:8px 12px;font-size:13.5px;border-bottom:1px solid #ffe69c;position:relative;z-index:80}
/* ===== Máy tính bảng, điện thoại ===== */
@media(max-width:1020px){
  .phero .wrap,.q-layout,.art-grid{grid-template-columns:1fr}
  .phero .wrap{gap:30px}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  a.tile{aspect-ratio:4/3.4}
  .g3,.g4,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .nums{grid-template-columns:repeat(2,minmax(0,1fr))}.nums>div{padding:28px 20px 12px 0;border-bottom:1px solid rgba(255,255,255,.12)}.nums>div:nth-child(2n){border-right:0}.nums>div:nth-child(2n+1){padding-left:0}
  .timeline{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:30px}.timeline::before{display:none}
  .strip .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.strip .sf:nth-child(3){border-left:0}.strip .sf:nth-child(n+3){border-top:1px solid rgba(255,255,255,.14)}
  .ft .grid{grid-template-columns:1fr 1fr}
  .q-sum,.aside{position:static}
  .burger{display:block;margin-left:auto;border:1px solid var(--line);border-radius:99px;padding:9px 18px;cursor:pointer;background:#fff;font-weight:600;color:var(--ink)}
  .home .hd:not(.solid) .burger{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.5)}
  .hd nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;align-items:stretch;padding:12px 18px 18px;border-bottom:1px solid var(--line);margin:0;box-shadow:0 18px 30px rgba(0,0,0,.1)}
  .home .hd:not(.solid) nav a:not(.cta){color:var(--ink)}
  .mt:checked~nav{display:flex}
  .hd .wrap{position:relative}
  .hero .in{padding-top:120px}.hero .credit{display:none}
  .hero .shade{background:linear-gradient(0deg,rgba(8,15,38,.88) 0%,rgba(8,15,38,.45) 55%,rgba(8,15,38,.35) 100%)}
}
@media(max-width:620px){
  section{padding:60px 0}
  .g2,.g3,.g4,.steps{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}a.tile{aspect-ratio:4/3.3}
  .nums{grid-template-columns:1fr}.nums>div{border-right:0!important;padding-left:0!important}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.strip .sf{padding:14px;flex-direction:column;align-items:flex-start;gap:6px}.strip .sf .ic{width:24px;height:24px}.strip .sf b{font-size:14px}.strip .sf span{font-size:12.5px}
  .ft .grid{grid-template-columns:1fr}
  .topline .wrap{justify-content:center;text-align:center}
  .fab a span{display:none}.fab a{padding:13px 15px}
  .q-row{grid-template-columns:auto minmax(0,1fr)}.q-row select{width:100%}.q-row .amt{grid-column:2;text-align:left}
  .band .in{padding:36px 26px}
  .hero{min-height:auto}.hero .in{padding:110px 0 32px}.hero p.lead{font-size:17px}
  .logo small{display:none}.logo b{font-size:18px}
  .q-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:55;background:var(--ink);color:#fff;padding:10px 16px;justify-content:space-between;align-items:center;gap:10px;font-weight:600}
  .q-bar a{background:var(--brass);color:#fff;border-radius:99px;padding:8px 16px;text-decoration:none}
}
@media print{.hd,.topline,.fab,.chat-btn,.chat,.ft,.band{display:none!important}body{background:#fff}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ===== Ảnh chi tiết: vật liệu, phụ kiện, quy trình, thư viện ===== */
.mat .mi{aspect-ratio:4/3;overflow:hidden;background:var(--sand)}
.mat .mi img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.mat:hover .mi img{transform:scale(1.06)}
.details{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.dt{margin:0;position:relative;border-radius:var(--r);overflow:hidden;background:#0d1836;color:#fff;aspect-ratio:4/5;isolation:isolate}
.dt img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.dt:hover img{transform:scale(1.07)}
.dt::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,15,38,.92) 0%,rgba(8,15,38,.55) 32%,rgba(8,15,38,0) 62%);z-index:-1}
.dt figcaption{position:absolute;left:0;right:0;bottom:0;padding:20px 20px 22px}
.dt b{display:block;font-family:var(--serif);font-size:20px;font-weight:600;margin-bottom:3px}
.dt span{font-size:14px;color:#c4d2f2;line-height:1.5;display:block}
.pcards{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.pcards li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.pcards .pi{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--sand)}
.pcards .pi img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.pcards li:hover .pi img{transform:scale(1.05)}
.pcards .pi::after{content:counter(s,decimal-leading-zero);position:absolute;left:14px;top:14px;width:46px;height:46px;border-radius:50%;background:var(--brass);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-style:italic;font-size:18px;box-shadow:0 6px 16px rgba(15,23,48,.3)}
.pcards .tx{padding:20px 22px 24px}
.pcards b{display:block;font-family:var(--serif);font-size:20px;font-weight:600;color:var(--ink);margin-bottom:6px}
.pcards span{font-size:15px;color:var(--muted);display:block;line-height:1.6}
.mosaic{columns:4 250px;column-gap:14px}
.mosaic figure{margin:0 0 14px;break-inside:avoid;border-radius:var(--r);overflow:hidden;background:var(--sand);position:relative}
.mosaic img{width:100%;height:auto;display:block;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.mosaic figure:hover img{transform:scale(1.04)}
.gal{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.gal figure{margin:0;border-radius:var(--r);overflow:hidden;aspect-ratio:3/2;background:var(--sand)}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.gal figure:hover img{transform:scale(1.05)}
@media(max-width:1020px){.details{grid-template-columns:repeat(2,minmax(0,1fr))}.pcards{grid-template-columns:repeat(2,minmax(0,1fr))}.gal{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.details{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.dt{aspect-ratio:3/4}.dt b{font-size:17px}.dt span{font-size:12.5px}.pcards{grid-template-columns:1fr}.mosaic{columns:2 150px;column-gap:10px}.mosaic figure{margin-bottom:10px}.gal{grid-template-columns:1fr}}
/* Logo thật của Kendo */
.logo .mark-img{width:44px;height:44px;border-radius:10px;background:#fff;padding:2px;object-fit:contain;flex:none;box-shadow:0 1px 6px rgba(0,0,0,.18)}
.brand .mark-img{width:40px;height:40px;border-radius:9px;background:#fff;padding:2px;object-fit:contain;vertical-align:middle;margin-right:10px}

/* Thư viện ảnh công trình */
.gal{columns:3 260px;column-gap:14px;margin-top:18px}
.gal figure{break-inside:avoid;margin:0 0 14px}
.gal img{width:100%;height:auto;display:block;border-radius:12px;background:#e9eef8}
@media(max-width:700px){.gal{columns:2;column-gap:10px}.gal figure{margin-bottom:10px}}