/* YUANHERUNDA — site styles
   No external fonts/CDN: system stack only, so the site loads fast in the Gulf
   and can be opened offline while you edit it. */

:root{
  --ink:#0f1720;
  --ink-2:#16212c;
  --steel:#1d2a36;
  --line:#e4e8ec;
  --line-dark:#2b3946;
  --paper:#ffffff;
  --paper-2:#f5f7f9;
  --text:#1b2530;
  --muted:#69757f;
  --amber:#ffb020;
  --amber-dark:#e07b00;
  --green:#1f9d55;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 1px 2px rgba(15,23,32,.06), 0 8px 28px rgba(15,23,32,.08);
  --shadow-lg:0 18px 50px rgba(15,23,32,.16);
  --maxw:1180px;
  --font:"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
body{
  margin:0; font-family:var(--font); color:var(--text); background:var(--paper);
  line-height:1.65; font-size:16.5px; overflow-x:hidden;
}
img{max-width:100%; display:block; height:auto}
a{color:inherit; text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em; line-height:1.18; font-weight:700; letter-spacing:-.015em}
h1{font-size:clamp(2rem,4.6vw,3.35rem)}
h2{font-size:clamp(1.5rem,3vw,2.15rem)}
h3{font-size:1.16rem}
p{margin:0 0 1em}
ul{margin:0; padding:0; list-style:none}

.wrap{width:100%; max-width:var(--maxw); margin:0 auto; padding:0 22px}
.wrap-narrow{max-width:880px}
.center{text-align:center}
.section{padding:78px 0}
.section-tight{padding:56px 0}
.bg-paper{background:var(--paper-2)}
.bg-dark{background:var(--ink); color:#eaf0f5}
.bg-dark h2,.bg-dark h3{color:#fff}
.bg-dark p{color:#a9b7c2}

/* ---------- eyebrow / section head ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:9px; font-size:.76rem; font-weight:700;
  letter-spacing:.16em; text-transform:uppercase; color:var(--amber-dark); margin-bottom:14px;
}
.eyebrow::before{content:""; width:26px; height:2px; background:var(--amber)}
.bg-dark .eyebrow{color:var(--amber)}
.sec-head{max-width:720px; margin-bottom:44px}
.sec-head.center{margin-inline:auto}
.sec-head p{color:var(--muted); font-size:1.03rem}
.bg-dark .sec-head p{color:#94a3ae}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:13px 24px; border-radius:var(--radius-sm); font-weight:650; font-size:.96rem;
  border:1.6px solid transparent; cursor:pointer; transition:.18s ease; white-space:nowrap;
}
.btn svg{width:18px; height:18px; flex:none}
.btn-amber{background:var(--amber); color:#241a05}
.btn-amber:hover{background:var(--amber-dark); color:#fff; transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.42); color:#fff}
.btn-ghost:hover{background:#fff; color:var(--ink); border-color:#fff}
.btn-outline{border-color:var(--line-dark); color:var(--text)}
.btn-outline:hover{border-color:var(--amber); color:var(--amber-dark)}
.bg-dark .btn-outline{border-color:rgba(255,255,255,.3); color:#fff}
.bg-dark .btn-outline:hover{border-color:var(--amber); color:var(--amber)}
.btn-wa{background:#25d366; color:#05351b}
.btn-wa:hover{background:#1eb257; color:#fff}
.btn-row{display:flex; flex-wrap:wrap; gap:13px}

/* ---------- header ---------- */
.hdr{
  position:fixed; inset:0 0 auto 0; z-index:60; transition:.25s ease;
  background:rgba(15,23,32,.0); backdrop-filter:blur(0);
}
.hdr.solid{background:rgba(15,23,32,.96); backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(255,255,255,.07)}
.hdr-in{display:flex; align-items:center; gap:22px; height:70px}
.brand{display:flex; align-items:center; margin-inline-end:auto}
.brand img{height:40px; width:auto}
.nav{display:flex; align-items:center; gap:4px}
.nav a{
  padding:9px 13px; border-radius:7px; font-size:.94rem; font-weight:600;
  color:rgba(255,255,255,.82); transition:.16s;
}
.nav a:hover,.nav a.on{color:#fff; background:rgba(255,255,255,.1)}
.nav a.on{color:var(--amber)}
.hdr-cta{display:flex; align-items:center; gap:10px}

.burger{display:none; border:0; background:none; padding:9px; cursor:pointer}
.burger span{display:block; width:23px; height:2.4px; background:#fff; margin:5px 0; border-radius:2px; transition:.2s}
.burger.open span:nth-child(1){transform:translateY(7.4px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.4px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative; min-height:min(92vh,780px); display:flex; align-items:center;
  padding:132px 0 74px; background:var(--ink); color:#fff; overflow:hidden;
}
.hero-bg{position:absolute; inset:0; z-index:0}
.hero-bg img{width:100%; height:100%; object-fit:cover; opacity:.42}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(100deg,rgba(15,23,32,.94) 8%,rgba(15,23,32,.74) 46%,rgba(15,23,32,.36) 100%);
}
.hero-in{position:relative; z-index:1; max-width:730px}
.hero .tag{
  display:inline-flex; align-items:center; gap:9px; padding:7px 14px; border-radius:100px;
  background:rgba(255,176,32,.15); border:1px solid rgba(255,176,32,.42);
  color:var(--amber); font-size:.79rem; font-weight:700; letter-spacing:.1em;
  text-transform:uppercase; margin-bottom:20px;
}
.hero h1{color:#fff; margin-bottom:18px}
.hero h1 em{font-style:normal; color:var(--amber)}
.hero .lead{font-size:1.1rem; color:#c3ced8; max-width:610px; margin-bottom:30px}
.hero-points{display:flex; flex-wrap:wrap; gap:10px 26px; margin:26px 0 0; font-size:.92rem}
.hero-points li{display:flex; align-items:center; gap:8px; color:#cfd9e2}
.hero-points svg{width:17px; height:17px; color:var(--amber); flex:none}

/* ---------- stat band ---------- */
.stats{background:var(--ink-2); border-top:1px solid var(--line-dark); position:relative; z-index:2}
.stats-in{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:2px}
.stat{padding:30px 24px; text-align:center; background:var(--ink-2)}
.stat b{display:block; font-size:clamp(1.6rem,3vw,2.1rem); color:var(--amber); font-weight:800; letter-spacing:-.02em}
.stat span{font-size:.86rem; color:#93a2ae; font-weight:600}

/* ---------- cards ---------- */
.grid{display:grid; gap:22px}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(288px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

.card{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; display:flex; flex-direction:column; transition:.2s ease;
}
.card:hover{box-shadow:var(--shadow-lg); transform:translateY(-3px); border-color:#d3dae0}
.card-img{position:relative; aspect-ratio:4/3; background:#e9edf1; overflow:hidden}
.card-img img{width:100%; height:100%; object-fit:cover; transition:.45s ease}
.card:hover .card-img img{transform:scale(1.045)}
.card-tag{
  position:absolute; top:12px; inset-inline-start:12px; background:var(--amber); color:#241a05;
  font-size:.7rem; font-weight:800; letter-spacing:.06em; text-transform:uppercase;
  padding:5px 10px; border-radius:6px;
}
.card-body{padding:20px 21px 22px; display:flex; flex-direction:column; flex:1}
.card-body h3{margin-bottom:8px}
.card-body p{color:var(--muted); font-size:.93rem; margin-bottom:14px}
.card-body .spec{margin-top:auto; padding-top:13px; border-top:1px solid var(--line);
  font-size:.83rem; color:var(--muted); display:flex; flex-wrap:wrap; gap:5px 14px}
.card-body .spec b{color:var(--text); font-weight:650}

/* ---------- split feature ---------- */
.split{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center}
.split.rev .split-media{order:2}
.split-media img{border-radius:var(--radius); box-shadow:var(--shadow-lg)}
.split-media{position:relative}
.split-media .cap{
  position:absolute; inset-inline-start:16px; bottom:16px; background:rgba(15,23,32,.86);
  color:#dfe7ee; font-size:.8rem; padding:8px 13px; border-radius:8px; backdrop-filter:blur(4px);
}
.checks li{display:flex; gap:13px; padding:13px 0; border-bottom:1px solid var(--line)}
.checks li:last-child{border-bottom:0}
.checks svg{width:21px; height:21px; color:var(--green); flex:none; margin-top:3px}
.checks b{display:block; margin-bottom:2px}
.checks span{color:var(--muted); font-size:.92rem}
.bg-dark .checks li{border-color:var(--line-dark)}
.bg-dark .checks span{color:#95a4b0}

/* ---------- process steps ---------- */
.steps{display:grid; grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); gap:20px; counter-reset:s}
.step{position:relative; padding:26px 22px 22px; background:var(--paper); border:1px solid var(--line);
  border-radius:var(--radius)}
.bg-dark .step{background:var(--ink-2); border-color:var(--line-dark)}
.step::before{
  counter-increment:s; content:counter(s);
  position:absolute; top:-15px; inset-inline-start:20px; width:34px; height:34px; border-radius:9px;
  background:var(--amber); color:#241a05; font-weight:800; font-size:1rem;
  display:flex; align-items:center; justify-content:center;
}
.step h3{margin:8px 0 6px; font-size:1.03rem}
.step p{color:var(--muted); font-size:.9rem; margin:0}
.bg-dark .step p{color:#93a2ae}

/* ---------- gallery ---------- */
.gallery{display:grid; grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); gap:14px}
.gallery figure{margin:0; position:relative; border-radius:var(--radius-sm); overflow:hidden; aspect-ratio:1}
.gallery img{width:100%; height:100%; object-fit:cover; transition:.45s}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{
  position:absolute; inset:auto 0 0 0; padding:26px 13px 11px; font-size:.79rem; color:#fff;
  background:linear-gradient(transparent,rgba(15,23,32,.86));
}

/* ---------- quote / note ---------- */
.note{
  border-inline-start:3px solid var(--amber); background:var(--paper-2);
  padding:18px 22px; border-radius:0 var(--radius-sm) var(--radius-sm) 0; color:var(--muted);
  font-size:.94rem;
}
.bg-dark .note{background:rgba(255,255,255,.05); color:#a9b7c2}

/* ---------- CTA band ---------- */
.cta{
  background:linear-gradient(115deg,var(--ink) 0%,var(--steel) 100%); color:#fff;
  border-radius:var(--radius); padding:48px 44px; display:flex; flex-wrap:wrap;
  gap:28px; align-items:center; justify-content:space-between;
}
.cta h2{color:#fff; margin-bottom:8px}
.cta p{color:#adbbc7; margin:0; max-width:560px}

/* ---------- contact ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:start}
.cinfo{display:grid; gap:14px}
.crow{display:flex; gap:15px; padding:17px 19px; background:var(--paper); border:1px solid var(--line);
  border-radius:var(--radius-sm); transition:.16s}
.crow:hover{border-color:var(--amber); box-shadow:var(--shadow)}
.crow .ic{width:42px; height:42px; border-radius:10px; background:rgba(255,176,32,.14);
  display:flex; align-items:center; justify-content:center; flex:none}
.crow .ic svg{width:20px; height:20px; color:var(--amber-dark)}
.crow small{display:block; color:var(--muted); font-size:.78rem; letter-spacing:.06em;
  text-transform:uppercase; font-weight:700}
.crow b{font-size:1rem; word-break:break-word}
.crow .sub{color:var(--muted); font-size:.85rem}

form{background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:26px}
.field{margin-bottom:15px}
.field label{display:block; font-size:.83rem; font-weight:700; margin-bottom:6px; color:#38434e}
.field input,.field select,.field textarea{
  width:100%; padding:11px 13px; border:1px solid var(--line); border-radius:var(--radius-sm);
  font:inherit; font-size:.94rem; background:#fbfcfd; color:var(--text);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid rgba(255,176,32,.42); border-color:var(--amber); background:#fff;
}
.field textarea{min-height:118px; resize:vertical}
.form-note{font-size:.8rem; color:var(--muted); margin:12px 0 0}
.two{display:grid; grid-template-columns:1fr 1fr; gap:15px}

/* ---------- footer ---------- */
footer{background:var(--ink); color:#9dacb8; padding:56px 0 26px; font-size:.9rem}
.foot-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:34px; margin-bottom:34px}
footer h4{color:#fff; font-size:.83rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:15px}
footer a:hover{color:var(--amber)}
footer li{margin-bottom:9px}
.foot-bot{border-top:1px solid var(--line-dark); padding-top:20px; display:flex; flex-wrap:wrap;
  gap:12px; justify-content:space-between; color:#7a8894; font-size:.84rem}

/* ---------- floating whatsapp ---------- */
.wa-float{
  position:fixed; inset-inline-end:20px; bottom:20px; z-index:70; display:flex; align-items:center;
  gap:11px; background:#25d366; color:#05351b; padding:12px 19px 12px 14px; border-radius:100px;
  font-weight:700; font-size:.92rem; box-shadow:0 10px 30px rgba(37,211,102,.4); transition:.2s;
}
.wa-float:hover{transform:translateY(-2px); box-shadow:0 14px 36px rgba(37,211,102,.5)}
.wa-float svg{width:24px; height:24px; flex:none}

/* ---------- helpers ---------- */
.mt0{margin-top:0} .mb0{margin-bottom:0}
.tiny{font-size:.82rem; color:var(--muted)}
.bg-dark .tiny{color:#8b9aa6}
.tag-list{display:flex; flex-wrap:wrap; gap:8px; margin-top:18px}
.tag-list span{background:var(--paper-2); border:1px solid var(--line); padding:5px 11px;
  border-radius:100px; font-size:.8rem; font-weight:600; color:#4c5862}
.bg-dark .tag-list span{background:rgba(255,255,255,.07); border-color:var(--line-dark); color:#c4cfd8}
table.spec{width:100%; border-collapse:collapse; font-size:.9rem; margin-top:10px}
table.spec th,table.spec td{padding:11px 13px; border-bottom:1px solid var(--line); text-align:start}
table.spec th{background:var(--paper-2); font-weight:700; font-size:.82rem; letter-spacing:.03em;
  text-transform:uppercase; color:#46525d}
table.spec tr:hover td{background:#fafbfc}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .split,.contact-grid{grid-template-columns:1fr; gap:34px}
  .split.rev .split-media{order:0}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav{
    position:fixed; inset:70px 0 auto 0; background:var(--ink); flex-direction:column;
    align-items:stretch; padding:14px 18px 22px; gap:2px; display:none;
    box-shadow:0 18px 30px rgba(0,0,0,.4); border-top:1px solid var(--line-dark);
  }
  .nav.open{display:flex}
  .nav a{padding:13px}
  .burger{display:block}
  .hdr-cta .btn{display:none}
  .hero{padding-top:112px}
}
@media(max-width:620px){
  body{font-size:16px}
  .section{padding:56px 0}
  .cta{padding:32px 24px; flex-direction:column; align-items:flex-start}
  .foot-grid{grid-template-columns:1fr}
  .two{grid-template-columns:1fr}
  .wa-float span{display:none}
  .wa-float{padding:15px; border-radius:50%}
  .stat{padding:22px 16px}
}