.sian_tab {width:100%; display:flex; text-align:center;   height:55px; position:Relative; z-index:99 }
.sian_tab li  {width:50%; display:inline-block; line-height:55px;  text-align:center;  font-size:1.3rem;   background-color:#f5f5f5; letter-spacing:-2px; transition: all 0.3s ease-out;}
.sian_tab li a {color:#333  ; width:100%; display:inline-block }
.sian_tab li.ov {background-color:#00a5b5}
.sian_tab li.ov a {color:#fff  }

	
	:root {
            --black: #050507;
            --dark: #0a0b0f;
            --dark2: #10121a;
            --dark3: #161923;
            --red: #e60012;
            --red2: #ff3545;
            --red3: #8b000b;
            --white: #fff;
            --text: #f4f4f6;
            --gray: #a4a8b3;
            --gray2: #737987;
            --line: rgba(255,255,255,.11);
            --line-red: rgba(230,0,18,.36);
            --max: 1320px;
            --side: 96px;
        }

    
        html { scroll-behavior: smooth; }
        body {
             background: var(--black);
            color: var(--text);
            line-height: 1.6;
            letter-spacing: -.025em;
            word-break: keep-all;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; }
        ul, li { list-style: none; }
        .wrap { padding-left: var(--side); }
        .inner { width: min(var(--max), calc(100% - 64px)); margin: 0 auto; }
 .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-mark {
            line-height:0;
        }
        .logo-text strong {
            display: block;
            font-size: 20px;
            letter-spacing: -.04em;
        }
        .logo-text span {
            display: block;
            margin-top: -2px;
            font-size: 11px;
            color: var(--muted);
            letter-spacing: .1em;
            text-transform: uppercase;
        }
        .side-nav {
            position: fixed;
            left: 0;
            top: 0;
            z-index: 100;
            width: var(--side);
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: space-between;
            padding: 28px 0 0 0;
            border-right: 1px solid rgba(255,255,255,.09);
            background: rgba(5,5,7,.88);
            backdrop-filter: blur(18px);
        }
        .symbol {
            
        }
      
        .side-menu {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 40px;
        }
        .side-menu a {
            writing-mode: vertical-rl;
            transform: rotate(180deg);
           color:#fff;
            font-size: 22px;
            font-weight: 800;
             transition: .25s;
			 letter-spacing:1px
        }
        .side-menu a:hover { color: #fff;  }
        .side-contact {
            writing-mode: vertical-rl;
            transform: rotate(180deg);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #ff9ba2;
            font-size: 12px;
            font-weight: 900;
            letter-spacing: .12em;
			margin-bottom:60px
        }
        .side-contact:before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--red);
        }

        .mobile-head {
            display: none;
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 14px 18px;
            border-bottom: 1px solid rgba(255,255,255,.1);
            background: rgba(5,5,7,.88);
            backdrop-filter: blur(16px);
        }
        .mobile-head .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .mobile-head strong { font-size: 19px; }
        .mobile-head span { color: var(--gray); font-size: 12px; }

        .hero {
            position: relative;
            min-height: 100vh;
            overflow: hidden;
            background:
                linear-gradient(90deg, rgba(230,0,18,.16) 0 1px, transparent 1px) 0 0 / 120px 120px,
                linear-gradient(180deg, rgba(230,0,18,.14) 0 1px, transparent 1px) 0 0 / 120px 120px,
                radial-gradient(circle at 82% 22%, rgba(230,0,18,.36), transparent 28%),
                radial-gradient(circle at 10% 88%, rgba(230,0,18,.14), transparent 28%),
                linear-gradient(135deg, #060609 0%, #0e1017 56%, #050507 100%);
        }
        .hero:before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5,5,7,0) 0 56%, rgba(230,0,18,.22) 56% 56.35%, rgba(5,5,7,.05) 56.35% 100%);
            pointer-events: none;
        }
        .hero:after {
            content: "DOOJEON NETWORKS";
            position: absolute;
            left: 42px;
            bottom: -22px;
            color: rgba(255,255,255,.034);
            font-size: clamp(76px, 13vw, 190px);
            line-height: .78;
            font-weight: 900;
            letter-spacing: -.09em;
            white-space: nowrap;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            min-height: 100vh;
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) 390px;
            gap: 70px;
            align-items: center;
            padding: 96px 0;
        }
        .brand-line {
            display: flex;
            align-items: center;
            gap: 18px;
            margin-bottom: 34px;
        }
        .brand-line strong {
            font-size: 28px;
            font-weight: 900;
            letter-spacing: -.055em;
        }
        .brand-line span {
            color: var(--gray2);
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .22em;
            text-transform: uppercase;
        }
        .hero-copy h1 {
            max-width: 920px;
            font-size: clamp(56px, 7vw, 112px);
            line-height: .96;
            font-weight: 900;
            letter-spacing: -.09em;
        }
        .hero-copy h1 em {
            display: block;
            color: var(--red2);
            font-style: normal;
            text-shadow: 0 0 44px rgba(230,0,18,.28);
        }
        .hero-text-row {
            display: grid;
            grid-template-columns: 220px minmax(0, 620px);
            gap: 38px;
            margin-top: 44px;
            align-items: start;
        }
        .hero-label {
            padding-top: 8px;
            color: #ff9ba2;
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .16em;
            text-transform: uppercase;
        }
        .hero-desc {
            color: var(--gray);
            font-size: 18px;
            line-height: 1.85;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 38px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 166px;
            height: 58px;
            padding: 0 25px;
            border-radius: 0;
            font-size: 19px;
            font-weight: 600;
            transition: .25s;
          /*   clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px)); */
        }
        .btn.red {
            color: #fff;
            background: linear-gradient(135deg, var(--red), #ff4652);
            box-shadow: 0 22px 44px rgba(230,0,18,.3);
        }
        .btn.line {
            color: #fff;
            border: 1px solid rgba(255,255,255,.16);
            background: rgba(255,255,255,.055);
        }
        .btn:hover { transform: translateY(-3px); }

        .hero-index {
            align-self: stretch;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 12px;
        }
        .index-title {
            margin-bottom: 10px;
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(255,255,255,.12);
        }
        .index-title span {
            display: block;
            color: var(--red2);
            font-size: 12px;
            font-weight: 900;
            letter-spacing: .18em;
            text-transform: uppercase;
        }
        .index-title strong {
            display: block;
            margin-top: 8px;
            font-size: 24px;
            line-height: 1.25;
            letter-spacing: -.05em;
        }
        .index-list a {
            position: relative;
            display: grid;
            grid-template-columns: 48px 1fr;
            gap: 16px;
            align-items: center;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255,255,255,.08);
            color: rgba(255,255,255,.76);
            transition: .25s;
        }
        .index-list a:before {
            content: "";
            position: absolute;
            left: -18px;
            top: 50%;
            width: 4px;
            height: 0;
            transform: translateY(-50%);
            background: var(--red);
            transition: .25s;
        }
        .index-list a:hover {
            color: #fff;
            padding-left: 12px;
        }
        .index-list a:hover:before { height: 52%; }
        .index-list b {
            color: rgba(255,255,255,.28);
            font-size: 18px;
            font-weight: 900;
        }
        .index-list strong {
            display: block;
            font-size: 19px;
            font-weight: 900;
            letter-spacing: -.04em;
        }
        .index-list small {
            display: block;
            margin-top: 2px;
            color: var(--gray2);
            font-size: 12px;
        }

        .marquee {
            position: relative;
            z-index: 3;
            overflow: hidden;
            border-top: 1px solid rgba(255,255,255,.08);
            border-bottom: 1px solid rgba(255,255,255,.08);
            background: #08090d;
        }
        .marquee-track {
            display: flex;
            width: max-content;
            animation: rolling 28s linear infinite;
        }
        .marquee span {
            display: block;
            padding: 25px 40px;
            color: rgba(255,255,255,.58);
            font-size: 20px;
            font-weight: 900;
            letter-spacing: .16em;
            text-transform: uppercase;
            white-space: nowrap;
        }
        .marquee em { color: var(--red2); font-style: normal; }
        @keyframes rolling {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        section { position: relative; padding: 126px 0; }
        .section-head {
            
            margin-bottom: 56px;
        }
        .section-num {
            color: rgba(255,255,255,.24);
            font-size: 72px;
            line-height: .9;
            font-weight: 900;
            letter-spacing: -.08em;
        }
        .section-kicker {
            display: block;
            margin-bottom: 14px;
            color: #ff8d95;
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .18em;
            text-transform: uppercase;
        }
        .section-head h2 {
           
            font-size: clamp(36px, 4vw, 58px);
            line-height: 1.15;
            font-weight: 900;
           
        }
        .section-head p {
           
            margin-top: 22px;
            color: var(--gray);
            font-size: 17px;
            line-height: 1.85;
        }

        .about {
            background:
                radial-gradient(circle at 88% 14%, rgba(230,0,18,.14), transparent 28%),
                linear-gradient(180deg, #050507 0%, #0a0b0f 100%);
        }
        .about-layout {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 24px;
            align-items: stretch;
        }
        .profile-panel {
            position: relative;
            overflow: hidden;
            min-height: 520px;
            padding: 52px;
            border: 1px solid var(--line);
            background: linear-gradient(135deg, rgba(255,255,255,.075), rgba(255,255,255,.026));
            clip-path: polygon(0 0, calc(100% - 42px) 0, 100% 42px, 100% 100%, 0 100%);
        }
        .profile-panel:after {
            content: "COMPANY";
            position: absolute;
            right: -18px;
            bottom: 14px;
            color: rgba(255,255,255,.035);
            font-size: 116px;
            line-height: .8;
            font-weight: 900;
            letter-spacing: -.08em;
        }
        .profile-panel h3 {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin-bottom: 24px;
            font-size: 40px;
            line-height: 1.24;
            font-weight: 900;
            letter-spacing: -.065em;
        }
        .profile-panel p {
            position: relative;
            z-index: 2;
            max-width: 670px;
            color: var(--gray);
            font-size: 17px;
            line-height: 1.9;
        }
        .profile-keywords {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 34px;
        }
        .profile-keywords span {
            display: inline-flex;
            align-items: center;
            min-height: 40px;
            padding: 0 15px;
            border: 1px solid rgba(255,255,255,.13);
            color: #fff;
            font-size: 14px;
            font-weight: 800;
            background: rgba(255,255,255,.045);
        }
        .company-table {
            display: grid;
            border-top: 1px solid var(--line-red);
            border-bottom: 1px solid var(--line);
        }
        .company-table li {
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 22px;
            padding: 23px 0;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .company-table li:last-child { border-bottom: 0; }
        .company-table span {
            color: #ff8d95;
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .08em;
        }
        .company-table strong {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: -.035em;
        }

        .solutions {
            overflow: hidden;
            background:
                linear-gradient(115deg, rgba(230,0,18,.08) 0 20%, transparent 20% 100%),
                #050507;
        }
        .solution-map {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border-top: 1px solid rgba(255,255,255,.12);
            border-left: 1px solid rgba(255,255,255,.12);
        }
        .solution-item {
            position: relative;
            min-height: 260px;
            padding: 34px 36px;
            border-right: 1px solid rgba(255,255,255,.12);
            border-bottom: 1px solid rgba(255,255,255,.12);
            background: rgba(255,255,255,.026);
            transition: .28s;
        }
        .solution-item.big {
            grid-row: span 2;
            min-height: 520px;
            padding: 48px;
            background:
                radial-gradient(circle at 70% 18%, rgba(230,0,18,.22), transparent 34%),
                rgba(255,255,255,.038);
        }
        .solution-item:hover {
            background: rgba(230,0,18,.095);
        }
        .solution-item .no {
            display: block;
            margin-bottom: 52px;
            color: rgba(255,255,255,.25);
            font-size: 22px;
            font-weight: 900;
        }
        .solution-item.big .no {
            margin-bottom: 130px;
            font-size: 36px;
        }
        .solution-item h3 {
            margin-bottom: 16px;
            color: #fff;
            font-size: 32px;
            line-height: 1.12;
            font-weight: 900;
            
        }
        .solution-item.big h3 { font-size: 56px; }
        .solution-item p {
            max-width: 560px;
            color: var(--gray);
            font-size: 16px;
            line-height: 1.75;
        }
        .solution-item .arrow {
            position: absolute;
            right: 28px;
            top: 28px;
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border: 1px solid rgba(255,255,255,.16);
            color: #fff;
            font-size: 20px;
            transition: .25s;
        }
        .solution-item:hover .arrow {
            background: var(--red);
            border-color: var(--red);
            transform: translate(4px, -4px);
        }

        .process {
            background:
                radial-gradient(circle at 14% 26%, rgba(230,0,18,.12), transparent 30%),
                linear-gradient(180deg, #050507 0%, #0a0b0f 100%);
        }
        .process-line {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-top: 1px solid rgba(255,255,255,.12);
        }
    
        .process-item {
            min-height: 320px;
            padding: 34px 28px;
            border-right: 1px solid rgba(255,255,255,.1);
        }
        .process-item:first-child { border-left: 1px solid rgba(255,255,255,.1); }
        .process-item b {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 58px;
            height: 58px;
            margin-bottom: 92px;
            color: #fff;
            font-size: 15px;
            background: linear-gradient(135deg, var(--red3), var(--red)); ;
        }
        .process-item h3 {
            margin-bottom: 12px;
            color: #fff;
            font-size: 25px;
            line-height: 1.2;
            font-weight: 900;
            letter-spacing: -.05em;
        }
        .process-item p {
            color: var(--gray);
            font-size: 15px;
            line-height: 1.75;
        }

        .contact {
            padding-bottom: 130px;
            background: #050507;
        }
        .contact-panel {
            position: relative;
            overflow: hidden;
            display: grid;
            grid-template-columns: .95fr 1.05fr;
            gap: 56px;
            
            padding:70px 58px;
            border: 1px solid rgba(230,0,18,.35);
          
        }
      
        .contact-panel h2 {
            position: relative;
            z-index: 2;
            margin-bottom: 22px;
            font-size: clamp(38px, 4vw, 60px);
            line-height: 1.12;
            font-weight: 900;
            letter-spacing: -.07em;
        }
        .contact-panel p {
            position: relative;
            z-index: 2;
            max-width: 560px;
            color: var(--gray);
            font-size: 17px;
            line-height: 1.85;
        }
        .contact-info {
            position: relative;
            z-index: 2;
            display: grid;
            align-content: start;
            border-top: 1px solid rgba(255,255,255,.12);
        }
        .contact-info li {
            display: grid;
            grid-template-columns: 130px 1fr;
            gap: 24px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255,255,255,.1);
        }
        .contact-info span {
            color: #ff8d95;
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .12em;
        }
        .contact-info strong {
            color: #fff;
            font-size: 18px;
            letter-spacing: -.035em;
        }

        .footer {
            padding: 42px 0 54px;
            border-top: 1px solid rgba(255,255,255,.09);
            color: var(--gray);
            background: #040405;
        }
        .footer .inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 13px;
        }
        .footer-logo strong {
            display: block;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: -.045em;
        }
        .footer-logo span {
            display: block;
            color: var(--gray2);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: .16em;
            text-transform: uppercase;
        }
        .footer p {
            margin-top: 10px;
            color: rgba(255,255,255,.5);
            font-size: 14px;
        }
        .copy { color: rgba(255,255,255,.34); font-size: 13px; }