/* RH v14.3 — Building materials industry landing page */
:root{--rh143-bg:#020817;--rh143-panel:#071a38;--rh143-panel2:#0a244c;--rh143-line:rgba(100,150,255,.2);--rh143-text:#f8fbff;--rh143-muted:#9db1cd;--rh143-green:#2ee6a6;--rh143-cyan:#22d3ee;--rh143-blue:#3978ff;--rh143-purple:#8b5cf6;--rh143-lime:#caff38}
.rh-materials-v143{background:var(--rh143-bg);color:var(--rh143-text);overflow:hidden}.rh143-shell{width:min(1400px,calc(100% - 56px));margin-inline:auto;position:relative;z-index:2}.rh143-kicker{display:inline-flex;align-items:center;gap:10px;color:#5aead1;font:800 11px/1.3 var(--rh-font-en,inherit);letter-spacing:.12em}.rh143-kicker:before{content:"";width:30px;height:1px;background:currentColor}.rh143-section-head{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:38px}.rh143-section-head>div{max-width:840px}.rh143-section-head h2{font-size:clamp(34px,3.5vw,54px);line-height:1.32;margin:9px 0 0}.rh143-section-head>p{max-width:480px;margin:0;color:var(--rh143-muted);font-size:14px;line-height:2}.rh143-btn{display:inline-flex;min-height:54px;padding:0 27px;align-items:center;justify-content:center;border-radius:12px;border:1px solid transparent;font-weight:800;color:#fff;transition:.22s}.rh143-btn:hover{transform:translateY(-2px)}.rh143-btn--primary{background:linear-gradient(100deg,#315eff,#6753f5 48%,#10d7bc);box-shadow:0 14px 46px rgba(50,101,255,.3)}.rh143-btn--ghost{border-color:rgba(130,171,255,.34);background:rgba(5,20,48,.64)}.rh143-link{color:#58e8d2;font-weight:800;font-size:13px}.rh143-icon{color:#55e8df}.rh143-icon .rh135-svg{width:34px;height:34px}
.rh143-hero{position:relative;min-height:850px;padding:88px 0 34px;background:radial-gradient(circle at 16% 30%,rgba(75,92,255,.18),transparent 29%),radial-gradient(circle at 84% 70%,rgba(25,220,188,.06),transparent 25%),linear-gradient(180deg,#031027,#020817);border-bottom:1px solid rgba(100,151,255,.16)}.rh143-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(82,140,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(82,140,255,.055) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,#000,transparent 96%)}.rh143-glow{position:absolute;width:720px;height:720px;left:-250px;top:100px;border-radius:50%;background:radial-gradient(circle,rgba(49,112,255,.16),transparent 68%)}.rh143-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:76px;align-items:center;min-height:620px}.rh143-hero-copy{text-align:right}.rh143-hero-copy h1{font-size:clamp(48px,5vw,76px);line-height:1.2;margin:15px 0 21px;letter-spacing:-.02em}.rh-lang-fa .rh143-hero-copy h1{letter-spacing:0}.rh143-hero-copy h1 em{font-style:normal;background:linear-gradient(100deg,#caff38,#3fe7d5 45%,#4a87ff);-webkit-background-clip:text;background-clip:text;color:transparent}.rh143-hero-copy>p{max-width:770px;margin:0 0 22px;color:#c1cee1;font-size:16px;line-height:2.05}.rh143-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.rh143-chip-row span{padding:8px 11px;border-radius:999px;border:1px solid rgba(104,151,245,.24);background:rgba(7,28,62,.65);color:#9fb4d0;font:700 9px/1.2 var(--rh-font-en,inherit)}.rh143-actions{display:flex;gap:11px;flex-wrap:wrap}
.rh143-material-board{position:relative;min-height:520px;border:1px solid rgba(92,147,255,.27);border-radius:25px;background:radial-gradient(circle at 50% 50%,rgba(55,115,255,.2),transparent 34%),linear-gradient(145deg,rgba(10,37,80,.9),rgba(4,17,42,.9));overflow:hidden;box-shadow:0 30px 100px rgba(0,0,0,.34)}.rh143-material-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(91,145,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(91,145,255,.06) 1px,transparent 1px);background-size:34px 34px}.rh143-board-top{position:absolute;top:20px;left:22px;right:22px;z-index:4;display:flex;justify-content:space-between;color:#8097b7;font:800 9px/1 var(--rh-font-en,inherit);letter-spacing:.12em}.rh143-board-top i{width:8px;height:8px;border-radius:50%;background:#2ee6a6;box-shadow:0 0 16px #2ee6a6}.rh143-material-stack{position:absolute;inset:94px 70px 88px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);gap:10px;transform:perspective(900px) rotateX(57deg) rotateZ(-26deg);opacity:.38}.rh143-material-stack span{border:1px solid rgba(78,189,255,.48);background:linear-gradient(145deg,rgba(51,122,255,.24),rgba(23,218,194,.07));box-shadow:0 0 30px rgba(38,136,255,.14)}.rh143-board-core{position:absolute;z-index:4;left:50%;top:49%;transform:translate(-50%,-50%);width:150px;height:150px;border-radius:33px;background:linear-gradient(145deg,#7855ff,#3979ff 52%,#20d8d0);box-shadow:0 0 90px rgba(69,102,255,.48);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.rh143-board-core small{font:800 9px/1 var(--rh-font-en,inherit);opacity:.82}.rh143-board-core strong{font:900 24px/1.1 var(--rh-font-en,inherit);margin:6px 0 2px}.rh143-board-core b{font:800 12px/1 var(--rh-font-en,inherit);color:#d4ff44}.rh143-node{position:absolute;z-index:5;min-width:142px;padding:12px 14px;border-radius:12px;border:1px solid rgba(101,151,255,.25);background:rgba(5,23,54,.9);box-shadow:0 15px 40px rgba(0,0,0,.2);font:800 10px/1.3 var(--rh-font-en,inherit);color:#eaf2ff}.rh143-node small{font-size:7px;color:#6fe8d7}.rh143-node--a{top:82px;left:28px}.rh143-node--b{top:104px;right:28px}.rh143-node--c{bottom:63px;left:28px}.rh143-node--d{bottom:82px;right:28px}.rh143-proof-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.rh143-proof-rail article{min-height:102px;border:1px solid rgba(100,149,255,.2);border-radius:13px;background:linear-gradient(120deg,rgba(8,28,62,.9),rgba(11,38,80,.72));padding:17px 20px;display:flex;align-items:center;gap:13px}.rh143-proof-rail strong{font:900 30px/1 var(--rh-font-en,inherit);background:linear-gradient(100deg,#caff38,#38e4d7,#4a8bff);-webkit-background-clip:text;background-clip:text;color:transparent}.rh143-proof-rail span{color:#a5b7cf;font-size:11px;line-height:1.65}
.rh143-trust{padding:24px 0;background:linear-gradient(90deg,#041126,#071a35 50%,#041126);border-bottom:1px solid rgba(99,145,255,.14)}.rh143-trust .rh-trusted-brands{display:grid;grid-template-columns:1.45fr repeat(5,1fr);gap:14px;align-items:center}.rh143-trust .rh-trusted-brand{display:flex;min-height:68px;align-items:center;justify-content:center;gap:10px;border:1px solid rgba(106,146,226,.16);border-radius:13px;background:rgba(8,26,59,.48);padding:12px}.rh143-trust .rh-trusted-brand img{max-width:66px;max-height:32px;object-fit:contain}.rh143-trust .rh-trusted-brand__name{font-size:12px;color:#dce8f7;font-weight:800}.rh143-trust .rh-trusted-brands__label{font-size:12px;color:#9eb2cb;line-height:1.8}
.rh143-market,.rh143-system,.rh143-measure,.rh143-projects,.rh143-insights{padding:94px 0}.rh143-market{background:linear-gradient(180deg,#041228,#020817)}.rh143-problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.rh143-problem-grid article{min-height:260px;padding:25px;border-radius:17px;border:1px solid rgba(95,143,241,.19);background:linear-gradient(145deg,#071a37,#06142d)}.rh143-problem-grid h3{font-size:19px;line-height:1.55;margin:30px 0 9px}.rh143-problem-grid p{font-size:12px;line-height:1.95;color:#91a7c4;margin:0}
.rh143-categories{padding:94px 0;background:radial-gradient(circle at 80% 10%,rgba(46,230,166,.06),transparent 22%),#020817}.rh143-category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.rh143-category-grid article{min-height:230px;padding:24px;border:1px solid rgba(96,146,244,.2);border-radius:17px;background:linear-gradient(155deg,#081c3b,#05142e)}.rh143-category-grid b{font:900 27px/1 var(--rh-font-en,inherit);color:rgba(86,232,211,.28)}.rh143-category-grid h3{font-size:19px;margin:34px 0 8px}.rh143-category-grid p{font-size:11px;line-height:1.95;color:#8fa5c2;margin:0}
.rh143-system{background:linear-gradient(135deg,#081e42,#041127);border-block:1px solid rgba(87,139,232,.16)}.rh143-system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.rh143-system-grid article{position:relative;min-height:280px;padding:26px;border:1px solid rgba(96,145,244,.2);border-radius:18px;background:linear-gradient(150deg,rgba(8,29,64,.94),rgba(5,18,42,.94))}.rh143-system-grid>article>span{font:900 10px/1 var(--rh-font-en,inherit);color:#6e88aa}.rh143-system-grid .rh143-icon{position:absolute;left:22px;top:22px;width:50px;height:50px;border-radius:13px;display:grid;place-items:center;background:rgba(55,120,255,.1)}.rh143-system-grid h3{font-size:20px;margin:70px 0 8px}.rh143-system-grid p{font-size:12px;line-height:1.95;color:#91a7c4;margin:0}
.rh143-journey{padding:96px 0;background:#020817}.rh143-journey-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:70px;align-items:center}.rh143-journey-copy h2{font-size:clamp(34px,3.4vw,52px);line-height:1.35;margin:10px 0 15px}.rh143-journey-copy p{color:#9fb3cf;line-height:2;font-size:14px;margin:0 0 20px}.rh143-journey-board{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:12px;min-height:280px;padding:50px 25px;border:1px solid rgba(91,145,255,.22);border-radius:20px;background:rgba(4,18,43,.68);align-items:center;overflow:hidden}.rh143-journey-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(84,142,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(84,142,255,.055) 1px,transparent 1px);background-size:40px 40px}.rh143-line{position:absolute;z-index:1;left:10%;right:10%;top:50%;height:2px;background:linear-gradient(90deg,#4c7fff,#22d3ee,#2ee6a6,#caff38);box-shadow:0 0 18px rgba(34,211,238,.4)}.rh143-journey-board article{position:relative;z-index:2;min-height:128px;padding:15px;border:1px solid rgba(92,145,255,.23);border-radius:14px;background:rgba(8,31,68,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.rh143-journey-board i{width:31px;height:31px;border-radius:9px;background:#0c2a58;display:grid;place-items:center;color:#4de7d2;font:800 9px/1 var(--rh-font-en,inherit);font-style:normal}.rh143-journey-board strong{font-size:12px;margin-top:11px}
.rh143-authority{padding:96px 0;background:radial-gradient(circle at 12% 10%,rgba(63,86,255,.14),transparent 27%),linear-gradient(180deg,#041126,#020817);border-block:1px solid rgba(91,145,255,.15)}.rh143-authority-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.rh143-authority-grid article{min-height:215px;padding:24px;border:1px solid rgba(96,151,255,.22);border-radius:16px;background:rgba(6,24,55,.82)}.rh143-authority-grid strong{font:900 40px/1 var(--rh-font-en,inherit);background:linear-gradient(100deg,#d4ff44,#39e7d0 48%,#4d8dff);-webkit-background-clip:text;background-clip:text;color:transparent}.rh143-authority-grid h3{font-size:17px;margin:16px 0 8px}.rh143-authority-grid p{font-size:11px;line-height:1.95;color:#8fa5c3;margin:0}.rh143-authority-note{display:flex;gap:12px;margin-top:16px;padding:15px 18px;border-radius:12px;border:1px solid rgba(61,217,194,.16);background:rgba(13,70,80,.1);font-size:10px;line-height:1.9;color:#819bb8}.rh143-authority-note b{color:#58e9d1;white-space:nowrap}
.rh143-measure{background:radial-gradient(circle at 80% 50%,rgba(73,77,255,.1),transparent 28%),linear-gradient(180deg,#041227,#020817)}.rh143-kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.rh143-kpi-grid article{min-height:210px;padding:24px;border-radius:16px;border:1px solid rgba(91,145,255,.2);background:linear-gradient(145deg,#081d40,#06152f)}.rh143-kpi-grid small{font:800 9px/1 var(--rh-font-en,inherit);color:#56e8d3}.rh143-kpi-grid h3{font-size:18px;margin:34px 0 8px}.rh143-kpi-grid p{font-size:11px;line-height:1.95;color:#8fa4c1;margin:0}
.rh143-projects{background:#020817}.rh143-projects .rh140-project-grid{margin-top:4px}.rh143-insights{background:linear-gradient(180deg,#041127,#020817)}.rh143-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.rh143-article{border:1px solid rgba(92,143,239,.19);border-radius:17px;overflow:hidden;background:#071832}.rh143-article-media{display:block;aspect-ratio:1.65;background:#0b2449;overflow:hidden}.rh143-article-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.83) brightness(.84)}.rh143-media-placeholder{height:100%;display:grid;place-items:center;color:#7089aa;font:800 10px/1 var(--rh-font-en,inherit);letter-spacing:.1em;background:linear-gradient(135deg,#0a2348,#06152e)}.rh143-article>div{padding:21px}.rh143-article small{font-size:10px;color:#54e6d1}.rh143-article h3{font-size:18px;line-height:1.65;margin:8px 0}.rh143-article p{font-size:11px;line-height:1.9;color:#8fa4c0}.rh143-final{padding:74px 0 98px;background:#020817}.rh143-final-card{display:grid;grid-template-columns:1fr auto;gap:42px;align-items:center;padding:42px;border-radius:23px;border:1px solid rgba(95,151,255,.28);background:linear-gradient(110deg,rgba(73,65,255,.22),rgba(8,34,73,.94) 58%,rgba(22,211,186,.1));box-shadow:0 28px 90px rgba(0,0,0,.24)}.rh143-final-card h2{font-size:clamp(30px,3vw,46px);line-height:1.35;margin:10px 0 9px}.rh143-final-card p{margin:0;color:#9eafc8;line-height:1.9;font-size:13px;max-width:760px}.rh143-final-card>div:last-child{display:flex;flex-direction:column;gap:10px;align-items:center}.rh143-phone{color:#a9bad1;font:700 11px/1 var(--rh-font-en,inherit)}
.rh-lang-fa .rh143-section-head,.rh-lang-fa .rh143-section-head h2,.rh-lang-fa .rh143-section-head p,.rh-lang-fa .rh143-category-grid,.rh-lang-fa .rh143-system-grid,.rh-lang-fa .rh143-journey-copy,.rh-lang-fa .rh143-authority-grid,.rh-lang-fa .rh143-kpi-grid,.rh-lang-fa .rh143-final-card{text-align:right}
@media(max-width:1100px){.rh143-shell{width:min(100% - 38px,1060px)}.rh143-hero-grid{gap:38px}.rh143-problem-grid,.rh143-category-grid,.rh143-authority-grid,.rh143-kpi-grid{grid-template-columns:1fr 1fr}.rh143-system-grid{grid-template-columns:1fr 1fr}.rh143-journey-grid{grid-template-columns:1fr}.rh143-trust .rh-trusted-brands{grid-template-columns:repeat(3,1fr)}.rh143-trust .rh-trusted-brands__label{grid-column:1/-1;text-align:center}}
@media(max-width:820px){.rh143-shell{width:calc(100% - 28px)}.rh143-section-head{display:block}.rh143-section-head>p{max-width:100%;margin-top:14px}.rh143-hero{padding-top:48px;min-height:0}.rh143-hero-grid{grid-template-columns:1fr;gap:28px}.rh143-hero-copy h1{font-size:45px}.rh143-material-board{min-height:450px}.rh143-proof-rail{grid-template-columns:1fr 1fr;margin-top:28px}.rh143-journey-board{grid-template-columns:1fr 1fr;min-height:520px}.rh143-line{display:none}.rh143-article-grid{grid-template-columns:1fr}.rh143-final-card{grid-template-columns:1fr;text-align:center}.rh143-final-card>div:last-child{justify-self:center}.rh143-trust .rh-trusted-brands{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.rh143-hero-copy h1{font-size:37px}.rh143-actions{display:grid;grid-template-columns:1fr}.rh143-btn{width:100%}.rh143-proof-rail,.rh143-problem-grid,.rh143-category-grid,.rh143-system-grid,.rh143-authority-grid,.rh143-kpi-grid{grid-template-columns:1fr}.rh143-material-board{min-height:390px}.rh143-material-stack{inset:95px 35px 80px}.rh143-board-core{width:120px;height:120px}.rh143-node{min-width:112px;padding:9px;font-size:8px}.rh143-node--a,.rh143-node--c{left:12px}.rh143-node--b,.rh143-node--d{right:12px}.rh143-journey-board{grid-template-columns:1fr}.rh143-trust .rh-trusted-brands{grid-template-columns:1fr}.rh143-authority-note{display:block}.rh143-authority-note b{display:block;margin-bottom:5px}.rh143-final-card{padding:30px 22px}.rh143-section-head h2,.rh143-journey-copy h2{font-size:32px}}