/* RH v13.7 — Premium About page, aligned to approved Home visual language. */
.rh-about-v137{--a-bg:#020817;--a-bg2:#04122a;--a-panel:#071936;--a-line:rgba(102,151,255,.22);--a-text:#f8fbff;--a-muted:#9eb2cf;--a-cyan:#22d3ee;--a-blue:#3978ff;--a-purple:#8b5cf6;--a-green:#2ee6a6;position:relative;background:var(--a-bg);color:var(--a-text);overflow:hidden}
.rh137-shell{width:min(1400px,calc(100% - 56px));margin-inline:auto;position:relative;z-index:2}
.rh137-kicker{display:inline-flex;align-items:center;gap:10px;color:#59e6ce;font:800 11px/1.4 var(--rh-font-en);letter-spacing:.14em;text-transform:uppercase}.rh137-kicker:before{content:"";width:30px;height:1px;background:linear-gradient(90deg,transparent,currentColor)}
.rh137-svg{width:36px;height:36px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.rh137-btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 28px;border-radius:12px;border:1px solid transparent;color:#fff;font-weight:800;transition:.24s}.rh137-btn:hover{transform:translateY(-2px)}.rh137-btn--primary{background:linear-gradient(100deg,#326dff,#6857ff 48%,#12dec2);box-shadow:0 14px 40px rgba(52,103,255,.32)}.rh137-btn--ghost{border-color:rgba(150,181,255,.34);background:rgba(6,22,51,.64);backdrop-filter:blur(12px)}
.rh137-hero{position:relative;min-height:760px;display:flex;align-items:center;background:radial-gradient(circle at 19% 55%,rgba(57,120,255,.18),transparent 32%),linear-gradient(135deg,#020817,#05142d 62%,#020817);overflow:hidden}.rh137-hero:after{content:"";position:absolute;inset:auto -15% -160px -15%;height:360px;background:radial-gradient(ellipse,rgba(35,128,255,.24),transparent 63%);filter:blur(28px)}.rh137-hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(92,146,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(92,146,255,.055) 1px,transparent 1px);background-size:58px 58px;mask-image:linear-gradient(#000,transparent 94%)}
.rh137-hero-inner{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(430px,.95fr);gap:82px;align-items:center;padding:92px 0 100px}.rh-lang-fa .rh137-hero-copy{order:1;text-align:right}.rh-lang-fa .rh137-hero-visual{order:2}.rh137-hero-copy h1{font-size:clamp(50px,4.8vw,76px);line-height:1.18;margin:14px 0 20px;letter-spacing:-.035em}.rh-lang-fa .rh137-hero-copy h1{letter-spacing:0}.rh137-hero-copy h1 em{font-style:normal;background:linear-gradient(105deg,#c8ff38,#33ded5 50%,#4a8dff);-webkit-background-clip:text;background-clip:text;color:transparent}.rh137-hero-copy>p{max-width:700px;margin:0 0 28px;color:#bccbe0;font-size:16px;line-height:2.05}.rh-lang-fa .rh137-hero-copy>p{margin-inline:0}.rh137-actions{display:flex;gap:12px;flex-wrap:wrap}.rh137-signature{display:flex;gap:12px;align-items:center;margin-top:26px;color:#849bb9;font-size:11px}.rh137-signature b{font:800 10px/1.4 var(--rh-font-en);letter-spacing:.08em;color:#e8efff}
.rh137-hero-visual{position:relative;min-height:540px;display:grid;place-items:center}.rh137-portrait-card{position:relative;z-index:4;width:min(480px,92%);padding:18px 18px 0;border-radius:34px;background:linear-gradient(145deg,rgba(18,50,100,.92),rgba(5,22,52,.78));border:1px solid rgba(96,152,255,.28);box-shadow:0 36px 100px rgba(0,0,0,.38);backdrop-filter:blur(14px)}.rh137-portrait-card:before{content:"";position:absolute;inset:18px;border-radius:24px;background:radial-gradient(circle at 50% 25%,rgba(54,205,255,.20),transparent 42%),linear-gradient(180deg,rgba(42,100,210,.13),rgba(2,8,23,.02));z-index:-1}.rh137-portrait-card img{display:block;width:100%;height:auto;max-height:450px;object-fit:contain;object-position:center bottom;filter:saturate(.98) contrast(1.04)}.rh137-portrait-caption{margin:0 -18px;padding:17px 20px;border-top:1px solid rgba(101,148,236,.22);background:rgba(3,15,35,.74);border-radius:0 0 34px 34px}.rh137-portrait-caption strong,.rh137-portrait-caption span{display:block}.rh137-portrait-caption strong{font-size:18px}.rh137-portrait-caption span{font:700 10px/1.6 var(--rh-font-en);color:#7fdce5;letter-spacing:.06em}.rh137-corner{position:absolute;width:54px;height:54px;border-color:#46e5dc}.rh137-corner--1{top:-10px;right:-10px;border-top:2px solid;border-right:2px solid}.rh137-corner--2{bottom:68px;left:-10px;border-bottom:2px solid;border-left:2px solid}.rh137-orbit{position:absolute;border:1px solid rgba(81,144,255,.20);border-radius:50%;z-index:1}.rh137-orbit--1{width:520px;height:520px}.rh137-orbit--2{width:650px;height:650px;border-style:dashed;opacity:.55}.rh137-node{position:absolute;z-index:5;display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:12px;background:rgba(5,22,52,.88);border:1px solid rgba(100,151,255,.24);box-shadow:0 16px 44px rgba(0,0,0,.25);font:800 9px/1.2 var(--rh-font-en);color:#dce9fb}.rh137-node .rh137-svg{width:24px;height:24px;color:#4ce5de}.rh137-node--1{top:48px;left:0}.rh137-node--2{top:110px;right:-5px}.rh137-node--3{bottom:110px;left:-15px}.rh137-node--4{bottom:52px;right:18px}
.rh137-intro{padding:100px 0;background:linear-gradient(180deg,#041127,#020817)}.rh137-intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end;margin-bottom:48px}.rh137-intro-copy h2,.rh137-section-head h2{font-size:clamp(36px,3.6vw,56px);line-height:1.35;margin:8px 0 0}.rh137-intro-note{border-inline-start:1px solid rgba(94,145,255,.24);padding-inline-start:28px}.rh137-intro-note span{font:900 13px/1 var(--rh-font-en);color:#57e1d0}.rh137-intro-note p{margin:12px 0 0;color:#9eb2cf;line-height:2}.rh137-timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.rh137-timeline article{position:relative;min-height:300px;padding:24px;border:1px solid rgba(96,145,255,.18);border-radius:16px;background:linear-gradient(145deg,#081a38,#06142c);overflow:hidden}.rh137-timeline article:after{content:"";position:absolute;inset:auto -15px -28px auto;width:110px;height:110px;border:1px solid rgba(49,219,232,.10);border-radius:50%}.rh137-step-no{font:900 11px/1 var(--rh-font-en);color:#577197;letter-spacing:.12em}.rh137-step-icon{width:64px;height:64px;margin:38px 0 22px;border-radius:18px;display:grid;place-items:center;color:#51e4e0;background:linear-gradient(145deg,rgba(31,100,210,.24),rgba(73,62,190,.18));border:1px solid rgba(89,143,255,.20)}.rh137-step-icon .rh137-svg{width:35px;height:35px}.rh137-timeline h3{font-size:19px;line-height:1.55;margin:0 0 9px}.rh137-timeline p{font-size:12px;line-height:1.9;color:#8fa4c1;margin:0}
.rh137-bridge{padding:96px 0;background:radial-gradient(circle at 20% 50%,rgba(79,58,220,.12),transparent 30%),#020817}.rh137-bridge-card{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:56px;border:1px solid rgba(90,146,255,.24);border-radius:22px;background:linear-gradient(135deg,#081e45,#05142e);box-shadow:0 28px 80px rgba(0,0,0,.24)}.rh137-bridge-copy h2{font-size:clamp(36px,3.7vw,56px);line-height:1.35;margin:10px 0 15px}.rh137-bridge-copy h2 em{font-style:normal;color:#50e5d1}.rh137-bridge-copy p{color:#9db1cd;line-height:2;font-size:15px}.rh137-bridge-diagram{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px}.rh137-bridge-side{min-height:230px;border:1px solid rgba(96,145,255,.20);border-radius:18px;background:rgba(6,25,57,.70);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:22px}.rh137-bridge-side>span{width:78px;height:78px;display:grid;place-items:center;border-radius:22px;background:rgba(42,92,184,.22);color:#54e8e1}.rh137-bridge-side b{margin-top:18px;font:900 12px/1.4 var(--rh-font-en);letter-spacing:.08em}.rh137-bridge-side small{margin-top:8px;color:#8096b4}.rh137-bridge-line{display:flex;align-items:center}.rh137-bridge-line i{display:block;width:34px;height:1px;background:linear-gradient(90deg,transparent,#4ddfda)}.rh137-bridge-line i:last-child{transform:rotate(180deg)}.rh137-bridge-line strong{width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#7857ff,#22d3ee);box-shadow:0 0 40px rgba(69,119,255,.4);font:900 12px/1 var(--rh-font-en)}
.rh137-principles{padding:100px 0;background:linear-gradient(180deg,#041127,#020817)}.rh137-section-head{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end;margin-bottom:40px}.rh137-section-head>p{color:#90a6c3;line-height:2;margin:0}.rh137-principle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.rh137-principle-grid article{min-height:280px;padding:26px;border-radius:16px;border:1px solid rgba(92,144,255,.18);background:#071936}.rh137-principle-icon{width:60px;height:60px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(56,116,230,.22),rgba(101,67,220,.16));color:#55e4dc}.rh137-principle-grid h3{font-size:20px;margin:36px 0 10px}.rh137-principle-grid p{font-size:12px;color:#8fa4c1;line-height:1.95;margin:0}
.rh137-stack{padding:0 0 100px;background:#020817}.rh137-stack-card{padding:44px;border:1px solid rgba(91,144,255,.22);border-radius:20px;background:radial-gradient(circle at 15% 50%,rgba(69,86,230,.14),transparent 30%),linear-gradient(135deg,#081e45,#05142e)}.rh137-stack-card>div:first-child{display:flex;align-items:end;justify-content:space-between;gap:40px}.rh137-stack-card h2{font-size:clamp(28px,3vw,44px);line-height:1.4;margin:9px 0 0;max-width:740px}.rh137-stack-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:34px}.rh137-stack-grid span{padding:18px;border:1px solid rgba(94,145,255,.18);border-radius:12px;background:rgba(6,25,58,.64)}.rh137-stack-grid b,.rh137-stack-grid small{display:block}.rh137-stack-grid b{font:900 11px/1.4 var(--rh-font-en);color:#57e4d4}.rh137-stack-grid small{margin-top:7px;color:#8da3bf}
.rh137-final{padding:0 0 104px;background:#020817}.rh137-final-card{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:44px 46px;border-radius:20px;background:linear-gradient(105deg,rgba(50,65,205,.30),rgba(7,35,72,.88) 58%,rgba(0,216,192,.12));border:1px solid rgba(93,149,255,.26)}.rh137-final-card h2{font-size:clamp(30px,3.1vw,46px);line-height:1.4;margin:8px 0}.rh137-final-card p{margin:0;color:#92a8c4;line-height:1.9}
.rh-lang-fa .rh137-intro-copy,.rh-lang-fa .rh137-intro-note,.rh-lang-fa .rh137-timeline,.rh-lang-fa .rh137-bridge-copy,.rh-lang-fa .rh137-section-head,.rh-lang-fa .rh137-principle-grid,.rh-lang-fa .rh137-stack-card,.rh-lang-fa .rh137-final-card{text-align:right}
@media(max-width:1100px){.rh137-shell{width:min(100% - 38px,1040px)}.rh137-hero-inner{grid-template-columns:1fr 1fr;gap:40px}.rh137-hero-copy h1{font-size:54px}.rh137-timeline{grid-template-columns:repeat(3,1fr)}.rh137-principle-grid{grid-template-columns:repeat(2,1fr)}.rh137-stack-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.rh137-shell{width:calc(100% - 28px)}.rh137-hero{min-height:0}.rh137-hero-inner{grid-template-columns:1fr;padding:58px 0 72px}.rh-lang-fa .rh137-hero-copy,.rh-lang-fa .rh137-hero-visual{order:initial}.rh137-hero-copy{text-align:center!important}.rh137-hero-copy h1{font-size:46px}.rh137-hero-copy>p{margin-inline:auto}.rh137-actions,.rh137-signature{justify-content:center}.rh137-hero-visual{min-height:470px}.rh137-intro-grid,.rh137-bridge-card,.rh137-section-head{grid-template-columns:1fr}.rh137-timeline{grid-template-columns:1fr 1fr}.rh137-bridge-card{padding:34px 24px}.rh137-stack-grid{grid-template-columns:1fr 1fr}.rh137-final-card{display:block;text-align:center!important}.rh137-final-card .rh137-btn{margin-top:24px}}
@media(max-width:520px){.rh137-hero-copy h1{font-size:38px}.rh137-actions{display:grid}.rh137-btn{width:100%}.rh137-node{display:none}.rh137-orbit--2{width:480px;height:480px}.rh137-orbit--1{width:370px;height:370px}.rh137-timeline,.rh137-principle-grid,.rh137-stack-grid{grid-template-columns:1fr}.rh137-intro,.rh137-bridge,.rh137-principles{padding:72px 0}.rh137-stack-card{padding:28px 20px}.rh137-final-card{padding:30px 22px}}