:root{
  --navy:#1a1f5c; --navy-dark:#12174a; --navy-light:#2a3080;
  --teal:#00b4b4; --teal-dark:#009494; --teal-light:#4dd4d4;
  --bg:#ffffff; --bg-soft:#f6f9fc; --bg-soft-2:#eef4f9;
  --card:#ffffff;
  --text:#1a1f5c; --text-2:#4a5578; --muted:#8894b3;
  --line:#e4ebf3; --line-2:#d0dae8;
  --radius:16px; --radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(26,31,92,.06);
  --shadow:0 10px 30px -10px rgba(26,31,92,.15);
  --shadow-lg:0 30px 60px -25px rgba(26,31,92,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Tajawal','Noto Sans SC',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
html[dir="rtl"] body{font-family:'Tajawal','Noto Sans Arabic','Inter',sans-serif}
html[lang="zh"] body{font-family:'Noto Sans SC','Inter',sans-serif}
a{color:inherit;text-decoration:none;cursor:pointer}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* NAVBAR */
header{position:fixed;top:0;left:0;right:0;z-index:1000;backdrop-filter:blur(14px);background:rgba(255,255,255,.85);border-bottom:1px solid transparent;transition:all .3s}
header.scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.97);box-shadow:0 4px 20px -8px rgba(26,31,92,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px;gap:20px}
.logo{display:flex;align-items:center;gap:12px;cursor:pointer}
.logo-mark{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--teal));display:grid;place-items:center;color:#fff;font-weight:900;font-size:15px;letter-spacing:-1px;box-shadow:0 8px 20px -8px rgba(0,180,180,.5)}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-text .top{font-size:19px;letter-spacing:2px;color:var(--navy);font-weight:900}
.logo-text .bottom{font-size:11px;letter-spacing:5px;color:var(--teal);font-weight:700;margin-top:2px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:var(--text-2);font-weight:600;transition:color .2s;position:relative;cursor:pointer}
.nav-links a:hover,.nav-links a.active{color:var(--navy)}
.nav-links a::after{content:'';position:absolute;bottom:-6px;left:0;height:2px;width:0;background:var(--teal);transition:width .3s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:12px}

.logo {
  height: 20px;
  width: auto;
  display: block;
}

@mediaimg (max-width: 768px) {
  .logo {
    height: 32px;
  }
}
/* LANG SWITCH */
.lang-switch{position:relative}
.lang-btn{background:transparent;border:1.5px solid var(--line-2);color:var(--navy);padding:9px 14px;border-radius:10px;font-weight:700;font-size:13px;transition:all .2s}
.lang-btn:hover{border-color:var(--teal);color:var(--teal)}
.lang-menu{position:absolute;top:calc(100% + 8px);inset-inline-end:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;min-width:170px;display:none;z-index:100;max-height:400px;overflow-y:auto}
.lang-menu.show{display:block;animation:fadeIn .2s ease}
.lang-menu a{display:block;padding:9px 14px;border-radius:8px;font-size:14px;color:var(--text-2);font-weight:600;transition:all .15s}
.lang-menu a:hover{background:var(--bg-soft);color:var(--navy)}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:12px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:all .25s;white-space:nowrap}
.btn-teal{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;box-shadow:0 10px 24px -10px rgba(0,180,180,.6)}
.btn-teal:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(0,180,180,.8)}
.btn-navy{background:var(--navy);color:#fff;box-shadow:0 10px 24px -12px rgba(26,31,92,.5)}
.btn-navy:hover{transform:translateY(-2px);background:var(--navy-dark)}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.menu-toggle{display:none;background:none;border:none;color:var(--navy);font-size:24px}

/* PAGES */
.page{display:none;padding-top:78px;min-height:100vh}
.page.active{display:block;animation:fadeIn .4s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* HERO */
.hero{position:relative;padding:80px 0 90px;overflow:hidden;background:linear-gradient(180deg,#fff 0%,var(--bg-soft) 100%)}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(700px 400px at 85% 5%,rgba(0,180,180,.10),transparent 60%),radial-gradient(600px 400px at 5% 40%,rgba(26,31,92,.06),transparent 60%);pointer-events:none}
.hero::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(26,31,92,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(26,31,92,.04) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,black 20%,transparent 70%);pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:100px;background:rgba(0,180,180,.10);border:1px solid rgba(0,180,180,.25);color:var(--teal-dark);font-size:13px;font-weight:700;margin-bottom:24px}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,180,180,.6)}70%{box-shadow:0 0 0 12px rgba(0,180,180,0)}100%{box-shadow:0 0 0 0 rgba(0,180,180,0)}}
h1{font-size:clamp(30px,4.5vw,54px);font-weight:900;line-height:1.15;letter-spacing:-1px;margin-bottom:22px;color:var(--navy)}
h1 .grad{background:linear-gradient(135deg,var(--teal),var(--teal-dark));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.stat-num{font-size:34px;font-weight:900;color:var(--navy);letter-spacing:-1px}
.stat-label{font-size:14px;color:var(--text-2);font-weight:500}
.hero-visual{position:relative;height:500px}
.visual-card{position:absolute;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg);background:var(--card)}
.visual-main{inset:0 0 70px 0;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(26,31,92,.4)),url('https://images.unsplash.com/photo-1565610222536-ef125c59da2e?w=900&q=80') center/cover}
.visual-badge{position:absolute;bottom:20px;inset-inline-end:20px;padding:14px 18px;border-radius:14px;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border:1px solid var(--line);display:flex;align-items:center;gap:12px;box-shadow:var(--shadow)}
.visual-badge .icon{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));display:grid;place-items:center;font-size:20px;color:#fff}
.visual-badge small{display:block;color:var(--text-2);font-size:12px}
.visual-badge strong{font-size:14px;color:var(--navy)}
.visual-mini{bottom:0;inset-inline-start:0;width:240px;height:150px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(26,31,92,.4)),url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?w=500&q=80') center/cover;animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* SECTIONS */
section{padding:90px 0;position:relative}
.sec-head{text-align:center;margin-bottom:56px}
.sec-tag{color:var(--teal-dark);font-weight:700;font-size:14px;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px;display:inline-block}
h2{font-size:clamp(24px,3.2vw,40px);font-weight:900;letter-spacing:-.5px;margin-bottom:16px;color:var(--navy)}
.sec-head p{color:var(--text-2);max-width:620px;margin:0 auto;font-size:16px}

/* CATEGORIES */
.categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}
.cat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 16px;text-align:center;cursor:pointer;transition:all .3s;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.cat::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,180,180,.06),transparent);opacity:0;transition:opacity .3s}
.cat:hover{transform:translateY(-6px);border-color:rgba(0,180,180,.4);box-shadow:0 20px 40px -20px rgba(0,180,180,.4)}
.cat:hover::before{opacity:1}
.cat-icon{font-size:32px;margin-bottom:10px;display:block;position:relative}
.cat h3{font-size:14px;font-weight:800;position:relative;color:var(--navy);line-height:1.4}
.cat small{color:var(--teal-dark);font-size:12px;position:relative;font-weight:600}

/* LINE CARDS */
.lines-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.line-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .35s;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);cursor:pointer}
.line-card:hover{transform:translateY(-6px);border-color:rgba(0,180,180,.35);box-shadow:0 30px 60px -25px rgba(26,31,92,.25)}
.line-img{height:190px;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--navy),var(--teal));display:grid;place-items:center}
.line-img .sector-icon{font-size:60px;filter:drop-shadow(0 4px 12px rgba(0,0,0,.2))}
.line-tag{position:absolute;top:14px;inset-inline-end:14px;padding:6px 12px;border-radius:100px;font-size:11px;font-weight:700;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border:1px solid var(--line);color:var(--navy)}
.line-num{position:absolute;top:14px;inset-inline-start:14px;padding:6px 12px;border-radius:100px;font-size:11px;font-weight:800;background:rgba(26,31,92,.85);color:#fff}
.line-body{padding:20px;flex:1;display:flex;flex-direction:column}
.line-body h3{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--navy);line-height:1.4}
.line-body p{color:var(--text-2);font-size:13px;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-meta{display:flex;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);gap:10px}
.line-meta strong{color:var(--navy);display:block;font-size:13px;font-weight:800;margin-bottom:2px}

/* CATALOG */
.catalog-header{padding:60px 0 30px;background:linear-gradient(180deg,#fff,var(--bg-soft))}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--teal-dark);font-weight:600}
.catalog-layout{display:grid;grid-template-columns:280px 1fr;gap:32px;padding:40px 0 80px}
.filters{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:100px;height:fit-content;box-shadow:var(--shadow-sm);max-height:calc(100vh - 120px);overflow-y:auto}
.filters h3{font-size:15px;font-weight:800;color:var(--navy);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.filters h3 button{background:none;border:none;color:var(--teal-dark);font-size:12px;font-weight:700;cursor:pointer}
.filter-group{margin-bottom:20px}
.filter-group label{display:block;font-size:13px;font-weight:700;color:var(--text-2);margin-bottom:8px}
.filter-group input[type="text"],.filter-group select{width:100%;padding:10px 14px;border:1px solid var(--line-2);border-radius:10px;font-size:14px;color:var(--text);background:#fff;transition:border .2s}
.filter-group input:focus,.filter-group select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,180,180,.12)}
.filter-cat{display:flex;flex-direction:column;gap:2px;max-height:360px;overflow-y:auto}
.filter-cat label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--text-2);cursor:pointer;padding:7px 8px;border-radius:8px;transition:background .2s;margin:0}
.filter-cat label:hover{background:var(--bg-soft)}
.filter-cat input[type="radio"]{accent-color:var(--teal);flex-shrink:0}
.catalog-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.catalog-top .count{font-size:14px;color:var(--text-2)}
.catalog-top .count strong{color:var(--navy);font-weight:800}
.empty-state{text-align:center;padding:80px 20px;color:var(--muted)}
.empty-state h3{color:var(--navy);font-size:20px;margin-bottom:8px}
.pagination{display:flex;justify-content:center;gap:6px;margin-top:40px;flex-wrap:wrap}
.pagination button{min-width:42px;height:42px;border-radius:10px;border:1px solid var(--line-2);background:#fff;color:var(--text-2);font-weight:700;transition:all .2s;padding:0 12px}
.pagination button:hover:not(:disabled){border-color:var(--teal);color:var(--teal)}
.pagination button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.pagination button:disabled{opacity:.4;cursor:not-allowed}

/* DETAIL */
.detail-header{padding:40px 0 30px;background:var(--bg-soft)}
.detail-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;padding:40px 0 80px}
.gallery{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.gallery-main{height:400px;background:linear-gradient(135deg,var(--navy),var(--teal));display:grid;place-items:center;position:relative;overflow:hidden}
.gallery-main::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.15),transparent 60%)}
.gallery-main .big-icon{font-size:140px;filter:drop-shadow(0 8px 30px rgba(0,0,0,.3));position:relative}
.detail-info h1{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;line-height:1.3}
.detail-info .tag{display:inline-block;padding:6px 14px;border-radius:100px;background:rgba(0,180,180,.1);color:var(--teal-dark);font-size:13px;font-weight:700;margin-bottom:14px}
.detail-info .desc{color:var(--text-2);font-size:15px;margin-bottom:22px}
.specs{background:var(--bg-soft);border-radius:var(--radius);padding:20px;margin-bottom:20px;border:1px solid var(--line)}
.specs h3{font-size:14px;font-weight:800;color:var(--navy);margin-bottom:12px}
.spec-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line-2);font-size:13px;gap:12px}
.spec-row:last-child{border-bottom:none}
.spec-row span:first-child{color:var(--muted)}
.spec-row span:last-child{color:var(--navy);font-weight:700;text-align:end}
.detail-actions{display:flex;flex-direction:column;gap:10px}
.detail-actions .btn{width:100%;justify-content:center}
.detail-tabs{margin-top:36px}
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:22px;overflow-x:auto}
.tabs button{padding:12px 22px;background:none;border:none;color:var(--muted);font-weight:700;font-size:14px;position:relative;white-space:nowrap;transition:color .2s}
.tabs button:hover{color:var(--navy)}
.tabs button.active{color:var(--navy)}
.tabs button.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--teal)}
.tab-content{display:none;animation:fadeIn .3s ease}
.tab-content.active{display:block}
.info-block{margin-bottom:24px;padding:20px;background:var(--bg-soft);border-radius:var(--radius);border:1px solid var(--line)}
.info-block h3{font-size:14px;font-weight:800;color:var(--navy);margin-bottom:12px}
.info-block ul{list-style:none;display:grid;gap:8px}
.info-block li{display:flex;gap:10px;font-size:14px;color:var(--text-2);padding:8px 0;border-bottom:1px dashed var(--line-2)}
.info-block li:last-child{border-bottom:none}
.info-block li::before{content:'✓';color:var(--teal);font-weight:900;flex-shrink:0}
.info-block p{font-size:14px;color:var(--text-2);line-height:1.9}

/* PROCESS */
.process{background:linear-gradient(180deg,var(--bg-soft) 0%,#fff 100%)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{padding:28px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);position:relative;box-shadow:var(--shadow-sm);transition:all .3s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-num{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff;font-weight:900;font-size:17px;display:grid;place-items:center;margin-bottom:14px}
.step h3{font-size:16px;margin-bottom:8px;font-weight:800;color:var(--navy)}
.step p{color:var(--text-2);font-size:13px}

/* CTA */
.cta-wrap{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);border-radius:26px;padding:70px 50px;text-align:center;position:relative;overflow:hidden;box-shadow:0 40px 80px -30px rgba(26,31,92,.5)}
.cta-wrap::before{content:'';position:absolute;inset:0;background:radial-gradient(600px 250px at 50% 0%,rgba(0,180,180,.3),transparent 70%)}
.cta-wrap>*{position:relative;z-index:2}
.cta-wrap h2{color:#fff;margin-bottom:16px}
.cta-wrap p{color:rgba(255,255,255,.8);max-width:560px;margin:0 auto 32px}
.cta-wrap .btn-teal{background:#fff;color:var(--navy)}
.cta-wrap .btn-teal:hover{background:var(--teal-light)}
.cta-wrap .btn-ghost{border-color:rgba(255,255,255,.3);color:#fff}
.cta-wrap .btn-ghost:hover{border-color:var(--teal-light);color:var(--teal-light)}

/* FORM */
.form-wrap{max-width:720px;margin:0 auto;background:#fff;border-radius:var(--radius-lg);padding:40px;border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;font-weight:700;color:var(--text-2);margin-bottom:8px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid var(--line-2);border-radius:12px;font-size:15px;color:var(--text);background:#fff;transition:all .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 4px rgba(0,180,180,.12)}
.form-group textarea{resize:vertical;min-height:110px}
.success-msg{display:none;text-align:center;padding:28px;background:rgba(0,180,180,.08);border:1px solid rgba(0,180,180,.3);border-radius:var(--radius);color:var(--teal-dark);font-weight:700;margin-top:20px}
.success-msg.show{display:block;animation:fadeIn .4s ease}

/* TOAST */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--navy);color:#fff;padding:14px 24px;border-radius:12px;font-weight:700;font-size:14px;box-shadow:var(--shadow-lg);z-index:9999;opacity:0;transition:all .4s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
.toast.success{background:linear-gradient(135deg,var(--teal),var(--teal-dark))}

/* FOOTER */
footer{background:var(--navy-dark);color:#fff;padding:70px 0 30px;margin-top:60px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid h4{font-size:15px;margin-bottom:18px;font-weight:800;color:#fff}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:10px}
.foot-grid a{color:rgba(255,255,255,.65);font-size:14px;transition:color .2s}
.foot-grid a:hover{color:var(--teal-light)}
.foot-desc{color:rgba(255,255,255,.65);font-size:14px;margin-top:14px;max-width:340px}
.foot-bottom{padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center;color:rgba(255,255,255,.5);font-size:13px;flex-wrap:wrap;gap:12px}
footer .logo-text .top{color:#fff}
footer .logo-text .bottom{color:var(--teal-light)}

.reveal{opacity:0;transform:translateY(30px);transition:all .8s cubic-bezier(.2,.8,.2,1)}
.reveal.show{opacity:1;transform:none}

@media (max-width:1100px){
  .nav-links{display:none}
  .menu-toggle{display:block}
}
@media (max-width:1000px){
  .catalog-layout{grid-template-columns:1fr}
  .filters{position:static;max-height:none}
  .detail-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{height:380px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-wrap{padding:50px 24px}
  .form-row{grid-template-columns:1fr}
  .form-wrap{padding:24px}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:16px}
  section{padding:60px 0}
  .hero{padding:60px 0}
  .gallery-main{height:260px}
  .gallery-main .big-icon{font-size:100px}
  .lang-btn{font-size:12px;padding:8px 10px}
}