/* UNITY 메인 v2 — 빅트론 제품 계열 밝은 파랑 · 밝은 배경 */
:root{
  --v-blue:#2d7dd2;      /* 주색 — 빅트론 제품 파랑 계열 */
  --v-blue-d:#1f66b3;    /* 눌림·강조 */
  --v-blue-l:#eaf3fc;    /* 옅은 바탕 */
  --v-blue-m:#cfe3f7;
  --v-cyan:#22a6e0;      /* 실시간 표시 */
  --v-ink:#0f1e33; --v-sub:#5b6b80; --v-mute:#8a99ad;
  --v-line:#e2e9f1; --v-bg:#f5f9fd; --v-w:1200px;
  --v-ok:#16a34a; --v-warn:#f08c1a; --v-danger:#e5484d;
  --v-shadow:0 1px 2px rgba(15,30,51,.04),0 8px 28px rgba(15,30,51,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Pretendard,system-ui,-apple-system,sans-serif;color:var(--v-ink);background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.v-wrap{max-width:var(--v-w);margin:0 auto;padding:0 20px}
svg.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}

/* 버튼 */
.v-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 20px;border-radius:12px;font-weight:700;font-size:15px;border:1.5px solid transparent;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}
.v-btn.pri{background:var(--v-blue);color:#fff;box-shadow:0 6px 16px rgba(45,125,210,.28)}
.v-btn.pri:hover{background:var(--v-blue-d)}
.v-btn.line{border-color:var(--v-blue-m);color:var(--v-blue-d);background:#fff}
.v-btn.line:hover{border-color:var(--v-blue);background:var(--v-blue-l)}
.v-btn.white{background:#fff;color:var(--v-blue-d)}
.v-btn.ghost{border-color:rgba(255,255,255,.55);color:#fff}
.v-btn.ghost:hover{background:rgba(255,255,255,.12)}
.v-btn.lg{height:54px;padding:0 26px;font-size:16px;border-radius:14px}

/* 머리줄 */
.v-hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.6) blur(12px);-webkit-backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--v-line)}
.v-hd .v-wrap{display:flex;align-items:center;gap:20px;height:68px}
.v-logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px;letter-spacing:-.3px;color:var(--v-ink)}
.v-logo .mk{width:34px;height:34px;border-radius:10px;background:var(--v-blue);display:flex;align-items:center;justify-content:center}
.v-logo .mk img{width:22px;height:22px;filter:brightness(0) invert(1)}
.v-logo small{font-size:13px;font-weight:600;color:var(--v-sub)}
.v-nav{display:flex;align-items:center;gap:2px;flex:1}
.v-nav a{height:44px;display:flex;align-items:center;padding:0 12px;border-radius:10px;font-size:15px;font-weight:600;color:#33445c}
.v-nav a:hover{background:var(--v-bg);color:var(--v-blue-d)}
.v-live{display:inline-flex !important;align-items:center;gap:8px;height:38px !important;padding:0 14px !important;margin-right:8px;border-radius:999px !important;background:var(--v-blue-l);color:var(--v-blue-d) !important;font-weight:800 !important;line-height:1}
.v-live:hover{background:var(--v-blue-m) !important}
.v-live .dot{width:8px;height:8px;border-radius:50%;background:var(--v-cyan);box-shadow:0 0 0 0 rgba(34,166,224,.6);animation:vPulse 1.8s ease-out infinite}
@keyframes vPulse{0%{box-shadow:0 0 0 0 rgba(34,166,224,.55)}100%{box-shadow:0 0 0 9px rgba(34,166,224,0)}}
.v-act{display:flex;gap:8px;align-items:center}
.v-act .v-btn{height:40px;padding:0 16px;font-size:14px}
.v-live.v-m{display:none !important}
@media (max-width:980px){ .v-nav{display:none} .v-live.v-m{display:inline-flex !important;margin-left:auto} .v-logo small{display:none} }
@media (max-width:520px){ .v-act .line{display:none} .v-m .t{font-size:12px} }

/* 히어로 */
.v-hero{position:relative;overflow:hidden;background:
   radial-gradient(900px 480px at 85% 0%,#d8e9fb 0%,rgba(216,233,251,0) 65%),
   radial-gradient(700px 400px at 0% 100%,#eef6fd 0%,rgba(238,246,253,0) 70%),
   linear-gradient(180deg,#f7fbff 0%,#fff 100%)}
.v-hero .v-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;padding-top:72px;padding-bottom:64px}
.v-eyebrow{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--v-blue-m);color:var(--v-blue-d);font-size:13px;font-weight:800}
.v-hero h1{font-size:52px;line-height:1.16;letter-spacing:-1.4px;margin:18px 0 18px;font-weight:900;word-break:keep-all}
.v-hero h1 em{font-style:normal;color:var(--v-blue)}
.v-hero .lead{font-size:18px;line-height:1.75;color:var(--v-sub);margin:0 0 30px;word-break:keep-all;max-width:540px}
.v-hero .cta{display:flex;gap:10px;flex-wrap:wrap}
.v-trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:28px;color:var(--v-sub);font-size:14px;font-weight:600}
.v-trust span{display:inline-flex;align-items:center;gap:6px}
.v-trust svg.i{width:18px;height:18px;color:var(--v-blue)}
.v-stage{position:relative}
.v-device{border-radius:20px;padding:10px;background:#0f1e33;box-shadow:0 30px 80px rgba(31,102,179,.28),0 0 0 1px rgba(15,30,51,.06);cursor:zoom-in}
.v-device img{border-radius:12px;width:100%}
.v-float{position:absolute;display:flex;align-items:center;gap:10px;background:#fff;border-radius:14px;padding:10px 14px;box-shadow:var(--v-shadow);font-size:13px;font-weight:700;white-space:nowrap}
.v-float small{display:block;font-size:11px;font-weight:600;color:var(--v-mute)}
.v-float .b{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}
.v-float.f1{left:-24px;top:18%}.v-float.f1 .b{background:var(--v-danger)}
.v-float.f2{right:-16px;top:6%}.v-float.f2 .b{background:var(--v-blue)}
.v-float.f3{right:8%;bottom:-18px}.v-float.f3 .b{background:var(--v-ok)}
.v-float svg.i{width:18px;height:18px;stroke:#fff}
@media (max-width:980px){
  .v-hero .v-wrap{grid-template-columns:1fr;padding-top:44px;gap:36px}
  .v-hero h1{font-size:36px;letter-spacing:-.8px}
  .v-hero .lead{font-size:16px}
  .v-float.f1{left:-6px}.v-float.f2{right:-6px}
}

/* 숫자 띠 */
.v-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-8px;position:relative;z-index:2}
.v-kpi div{background:#fff;border:1px solid var(--v-line);border-radius:16px;padding:20px 22px;box-shadow:var(--v-shadow)}
.v-kpi b{display:block;font-size:24px;font-weight:900;color:var(--v-blue-d);letter-spacing:-.5px}
.v-kpi span{font-size:14px;color:var(--v-sub)}
@media (max-width:900px){ .v-kpi{grid-template-columns:repeat(2,1fr)} .v-kpi b{font-size:20px} }

/* 섹션 */
.v-sec{padding:96px 0}
.v-sec.alt{background:var(--v-bg)}
.v-sh{max-width:760px;margin:0 0 44px}
.v-sh.c{margin-left:auto;margin-right:auto;text-align:center}
.v-sh .k{display:inline-block;font-size:12px;font-weight:900;color:var(--v-blue);letter-spacing:2px;margin-bottom:12px}
.v-sh h2{font-size:36px;line-height:1.28;margin:0 0 14px;font-weight:900;letter-spacing:-.8px;word-break:keep-all}
.v-sh p{font-size:17px;line-height:1.75;color:var(--v-sub);margin:0;word-break:keep-all}
@media (max-width:900px){ .v-sec{padding:64px 0} .v-sh h2{font-size:26px} .v-sh p{font-size:15px} }

/* 핵심 기능 — 탭 */
.v-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.v-tabs button{height:46px;padding:0 18px;border-radius:999px;border:1.5px solid var(--v-line);background:#fff;font:inherit;font-size:15px;font-weight:700;color:var(--v-sub);cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.v-tabs button.on{background:var(--v-blue);border-color:var(--v-blue);color:#fff}
.v-tabs button svg.i{width:18px;height:18px}
.v-pane{display:none;grid-template-columns:1fr 1.2fr;gap:44px;align-items:center;background:#fff;border:1px solid var(--v-line);border-radius:22px;padding:36px;box-shadow:var(--v-shadow)}
.v-pane.on{display:grid}
.v-pane h3{font-size:26px;line-height:1.35;margin:0 0 12px;font-weight:900;letter-spacing:-.5px;word-break:keep-all}
.v-pane p{font-size:16px;line-height:1.75;color:var(--v-sub);margin:0 0 18px;word-break:keep-all}
.v-pane ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.v-pane li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.55}
.v-pane li::before{content:"";flex:0 0 20px;height:20px;margin-top:1px;border-radius:6px;background:var(--v-blue-l) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%232d7dd2' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.v-pane .shot{border-radius:14px;overflow:hidden;box-shadow:0 0 0 1px var(--v-line),0 18px 40px rgba(15,30,51,.12);cursor:zoom-in}
@media (max-width:900px){ .v-pane{grid-template-columns:1fr;padding:22px;gap:22px} .v-pane h3{font-size:21px} }

/* 기능 카드 */
.v-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.v-card{background:#fff;border:1px solid var(--v-line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:10px;transition:border-color .15s,box-shadow .15s,transform .15s}
.v-card:hover{border-color:var(--v-blue-m);box-shadow:var(--v-shadow);transform:translateY(-2px)}
.v-card .ic{width:44px;height:44px;border-radius:12px;background:var(--v-blue-l);color:var(--v-blue);display:flex;align-items:center;justify-content:center}
.v-card h4{margin:2px 0 0;font-size:17px;font-weight:800;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.v-card p{margin:0;font-size:14px;line-height:1.7;color:var(--v-sub);word-break:keep-all}
.v-card .shot{border-radius:10px;overflow:hidden;margin-top:6px;cursor:zoom-in;box-shadow:0 0 0 1px var(--v-line)}
.v-badge{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:999px;background:#fff4e5;color:#b45309;font-size:11px;font-weight:800}
@media (max-width:900px){ .v-grid{grid-template-columns:1fr 1fr} }
@media (max-width:560px){ .v-grid{grid-template-columns:1fr} }

/* 관제 서비스 — 빅트론 블루 */
.v-blue{background:linear-gradient(135deg,#2f84d6 0%,#2370c0 55%,#1c5fa9 100%);color:#fff;position:relative;overflow:hidden}
.v-blue::after{content:"";position:absolute;right:-180px;top:-180px;width:520px;height:520px;border-radius:50%;border:80px solid rgba(255,255,255,.06);pointer-events:none}
.v-blue .v-sh .k{color:#cfe6ff}
.v-blue .v-sh p{color:#dbeafb}
.v-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:st}
.v-step{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:22px}
.v-step::before{counter-increment:st;content:counter(st);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#fff;color:var(--v-blue-d);font-weight:900;margin-bottom:14px}
.v-step h4{margin:0 0 6px;font-size:17px}
.v-step p{margin:0;font-size:14px;line-height:1.65;color:#dbeafb;word-break:keep-all}
.v-svc{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.v-svc div{background:#fff;color:var(--v-ink);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:8px}
.v-svc b{display:flex;align-items:center;gap:10px;font-size:16px}
.v-svc b .ic{width:36px;height:36px;border-radius:10px;background:var(--v-blue-l);color:var(--v-blue);display:flex;align-items:center;justify-content:center}
.v-svc span{font-size:14px;line-height:1.7;color:var(--v-sub);word-break:keep-all}
.v-blue .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
@media (max-width:900px){ .v-steps{grid-template-columns:1fr 1fr} .v-svc{grid-template-columns:1fr} }

/* 비교 */
.v-cmp-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.v-cmp{width:100%;min-width:560px;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--v-line);border-radius:18px;overflow:hidden;font-size:15px}
.v-cmp th,.v-cmp td{padding:17px 20px;text-align:left;border-bottom:1px solid var(--v-line);line-height:1.55}
.v-cmp tr:last-child td{border-bottom:none}
.v-cmp thead th{background:#f3f7fc;font-size:14px;color:var(--v-sub)}
.v-cmp thead th.u{background:var(--v-blue);color:#fff}
.v-cmp td:first-child{font-weight:800;width:18%}
.v-cmp td.u{color:var(--v-blue-d);font-weight:700;background:#f6faff}

/* 연결성 */
.v-chips{display:flex;flex-wrap:wrap;gap:10px}
.v-chips span{display:inline-flex;align-items:center;height:44px;padding:0 18px;border-radius:999px;background:#fff;border:1px solid var(--v-line);font-size:15px;font-weight:700}
.v-chips span.hl{border-color:var(--v-blue-m);background:var(--v-blue-l);color:var(--v-blue-d)}
.v-chips small{font-weight:600;color:var(--v-sub);margin-left:8px;font-size:12px}

/* 쇼핑몰 */
.v-shop{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.v-prod{background:#fff;border:1px solid var(--v-line);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:8px;transition:border-color .15s,box-shadow .15s}
.v-prod:hover{border-color:var(--v-blue-m);box-shadow:var(--v-shadow)}
.v-prod .ic{width:48px;height:48px;border-radius:14px;background:var(--v-blue-l);color:var(--v-blue);display:flex;align-items:center;justify-content:center;margin-bottom:4px}
.v-prod .ic svg.i{width:26px;height:26px}
.v-prod b{font-size:16px;line-height:1.4;word-break:keep-all}
.v-prod p{margin:0;font-size:13px;line-height:1.6;color:var(--v-sub);flex:1;word-break:keep-all}
.v-prod .pr{font-size:20px;font-weight:900;color:var(--v-blue-d)}
.v-prod .pr small{font-size:13px;font-weight:700;color:var(--v-sub)}
.v-shop-more{margin-top:22px;display:flex;justify-content:center}
@media (max-width:900px){ .v-shop{grid-template-columns:1fr 1fr} }
@media (max-width:520px){ .v-shop{grid-template-columns:1fr} }

/* FAQ — 기존 디자인 그대로 (색만 주색) */
.lp-faq{display:flex;flex-direction:column;gap:10px;max-width:880px;margin:0 auto}
.lp-faq details{background:#fff;border:1px solid var(--v-line);border-radius:14px;padding:0 20px}
.lp-faq summary{list-style:none;cursor:pointer;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:16px;font-weight:700}
.lp-faq summary::-webkit-details-marker{display:none}
.lp-faq summary::after{content:"+";font-size:22px;color:var(--v-blue);font-weight:400}
.lp-faq details[open] summary::after{content:"−"}
.lp-faq details p{margin:0 0 18px;font-size:15px;line-height:1.75;color:var(--v-sub)}

/* 하단 CTA · 푸터 */
.v-end{padding:80px 0}
.v-end .box{border-radius:26px;background:linear-gradient(120deg,#2f84d6,#1f66b3);color:#fff;padding:56px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;position:relative;overflow:hidden}
.v-end .box::after{content:"";position:absolute;right:-120px;bottom:-160px;width:380px;height:380px;border-radius:50%;border:60px solid rgba(255,255,255,.07)}
.v-end h2{font-size:32px;margin:0 0 8px;font-weight:900;letter-spacing:-.6px;word-break:keep-all}
.v-end p{margin:0;color:#dbeafb;font-size:16px}
.v-end .cta{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
@media (max-width:900px){ .v-end .box{padding:36px 24px} .v-end h2{font-size:24px} }
.v-ft{background:#f3f7fc;border-top:1px solid var(--v-line);color:var(--v-sub);font-size:13px;padding:36px 0 calc(36px + env(safe-area-inset-bottom))}
.v-ft .top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.v-ft .links{display:flex;gap:16px;flex-wrap:wrap;font-weight:600}
.v-ft .links a:hover{color:var(--v-blue-d)}
.v-ft .row{display:flex;flex-wrap:wrap;gap:6px 18px;line-height:1.8}
.v-ft .lbl{color:var(--v-mute);margin-right:6px}
.v-ft .cp{margin-top:10px;color:var(--v-mute)}

/* 이미지 확대 */
.lp-lb{position:fixed;inset:0;z-index:200;background:rgba(10,20,36,.9);display:none;align-items:center;justify-content:center;padding:16px}
.lp-lb.on{display:flex}
.lp-lb img{max-width:min(1400px,100%);max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lp-lb .cap{position:absolute;left:0;right:0;bottom:20px;text-align:center;color:#dbeafb;font-size:14px;padding:0 16px}
.lp-lb .x{position:absolute;top:12px;right:12px;width:48px;height:48px;border-radius:24px;border:none;background:rgba(255,255,255,.14);color:#fff;font-size:24px;cursor:pointer}

/* 스크롤 등장 */
.rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){ .rv{opacity:1;transform:none;transition:none} .v-live .dot{animation:none} }