.rc-sol{
  --ink:#10284a; --sub:#55657c; --blue:#2563eb; --blue-2:#3b82f6; --blue-soft:#eaf2ff; --sky:#f3f8ff;
  --teal:#0e9f8f; --teal-soft:#e3f6f3; --red:#e0483e; --red-soft:#fff1ef; --red-b:#f6d3cf;
  --line:#e2e9f3; --bg:#f6f9fd; --white:#fff;
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  color:var(--ink); line-height:1.7; word-break:keep-all; background:var(--white);
}
.rc-sol *{box-sizing:border-box}
.rc-sol a{color:var(--blue);text-decoration:none}
.rc-sol a:hover{text-decoration:underline}
.rk-wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.rk-sec{padding:92px 0;scroll-margin-top:64px}
.rk-sec.alt{background:var(--bg)}
.rk-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--blue);text-transform:uppercase;margin-bottom:12px}
.rk-eyebrow.red{color:var(--red)} .rk-eyebrow.teal{color:var(--teal)}
.rk-h2{font-size:34px;line-height:1.3;font-weight:800;letter-spacing:-.02em;margin:0 0 14px}
.rk-lead{font-size:18px;color:var(--sub);margin:0 0 42px;max-width:800px}
.rk-btn{display:inline-block;font-weight:700;font-size:16px;padding:15px 26px;border-radius:999px;transition:transform .15s}
.rk-btn.p{background:var(--blue);color:#fff!important;box-shadow:0 12px 24px -12px #2563ebaa}
.rk-btn.g{background:#fff;color:var(--blue)!important;border:1px solid #cfe0fb}
.rk-hero .rk-btn.g{background:#ffffff14;color:#fff!important;border-color:#ffffff40}
.rk-hero .rk-btn.p{box-shadow:0 12px 28px -10px #2563ebcc}
.rk-btn:hover{text-decoration:none!important;transform:translateY(-2px)}
.rk-ic{width:46px;height:46px;border-radius:14px;background:var(--blue-soft);display:grid;place-items:center;flex:none}
.rk-ic svg{width:24px;height:24px;stroke:var(--blue);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* Hero */
.rk-hero{position:relative;overflow:hidden;padding:96px 0 120px;color:#fff;background:radial-gradient(900px 460px at 85% 0%,#1f6feb66 0%,transparent 62%),radial-gradient(700px 380px at 0% 100%,#0e9f8f33 0%,transparent 60%),linear-gradient(160deg,#0b1f3a 0%,#132d52 100%)}
.rk-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff0f 1px,transparent 1px),linear-gradient(90deg,#ffffff0f 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 90%);mask-image:linear-gradient(180deg,#000,transparent 90%);pointer-events:none}
.rk-hero .rk-wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.rk-crumb{font-size:14px;color:#a9bad3;margin-bottom:18px}
.rk-crumb b{color:#fff;font-weight:600}
.rk-prod{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:#cfe0ff;background:#ffffff14;border:1px solid #ffffff2e;padding:7px 14px 7px 8px;border-radius:999px;margin-bottom:20px}
.rk-prod i{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--teal));display:grid;place-items:center}
.rk-prod i svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2.4}
.rk-h1{font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.025em;margin:0 0 8px}
.rk-h1 small{display:block;font-size:20px;font-weight:700;color:#8fb6ff;letter-spacing:0;margin-top:10px}
.rk-intro{font-size:18.5px;color:#d3ddec;margin:20px 0 26px;max-width:580px}
.rk-intro b{color:#fff}
.rk-certs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.rk-certs span{font-size:13px;font-weight:700;color:#9ff0de;background:#0e9f8f2e;border:1px solid #0e9f8f66;padding:6px 11px;border-radius:8px}
.rk-btns{display:flex;flex-wrap:wrap;gap:12px}
.rk-vis{max-width:440px;width:100%;justify-self:center}
.rk-vis svg{width:100%;height:auto;display:block;overflow:visible}

/* Stats */
.rk-stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 40px -26px #10284a40;margin-top:-52px;position:relative;z-index:2;overflow:hidden}
.rk-stat{padding:26px 24px;border-right:1px solid var(--line)}
.rk-stat:last-child{border-right:0}
.rk-stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
.rk-stat b.r{color:var(--red)}
.rk-stat span{font-size:14px;color:var(--sub)}
.rk-statnote{font-size:12.5px;color:#8392a8;text-align:right;margin:10px 0 0}

/* Threat stages */
.rk-stages{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:48px}
.rk-stage{background:#fff;border:1px solid var(--red-b);border-radius:18px;overflow:hidden}
.rk-stage h4{margin:0;padding:16px 22px;background:linear-gradient(90deg,#fff1ef,#fff);font-size:17px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--red-b)}
.rk-stage h4 em{font-style:normal;font-size:12.5px;font-weight:800;color:#fff;background:var(--red);border-radius:6px;padding:3px 8px}
.rk-stage ul{margin:0;padding:18px 22px 20px 40px;font-size:15px;color:#3a4c66}
.rk-stage li{padding:3px 0}
.rk-purp{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.rk-purp div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px}
.rk-purp b{display:block;font-size:22px;font-weight:800;color:var(--blue);line-height:1;margin-bottom:10px}
.rk-purp p{margin:0;font-size:14.5px;color:#2b3d57}
.rk-sh{font-size:21px;margin:0 0 6px}
.rk-sp{font-size:15.5px;color:var(--sub);margin:0 0 18px}

/* 4 layers */
.rk-layers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative}
.rk-layer{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 22px 24px;position:relative;display:flex;flex-direction:column}
.rk-layer:not(:last-child)::after{content:"›";position:absolute;right:-13px;top:46px;font-size:24px;font-weight:800;color:var(--blue-2);z-index:1}
.rk-layer .tag{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.rk-layer .tag b{font-size:13px;font-weight:800;letter-spacing:.1em;color:#fff;background:var(--blue);border-radius:8px;padding:5px 10px}
.rk-layer:nth-child(3) .tag b{background:var(--teal)}
.rk-layer:nth-child(3) .rk-ic{background:var(--teal-soft)} .rk-layer:nth-child(3) .rk-ic svg{stroke:var(--teal)}
.rk-layer h3{font-size:19px;margin:0 0 2px}
.rk-layer .en{font-size:12.5px;color:var(--sub);font-weight:600;margin-bottom:12px}
.rk-layer p{font-size:14.5px;color:#3a4c66;margin:0 0 14px}
.rk-layer ul{list-style:none;margin:auto 0 0;padding:14px 0 0;border-top:1px dashed var(--line)}
.rk-layer li{position:relative;padding:4px 0 4px 20px;font-size:14px;color:#2b3d57}
.rk-layer li::before{content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--blue-2)}
.rk-layer:nth-child(3) li::before{background:var(--teal)}
.rk-band{margin-top:22px;background:linear-gradient(90deg,var(--blue-soft),var(--teal-soft));border:1px solid #d3e4fb;border-radius:14px;padding:16px 22px;font-size:15.5px;font-weight:600;text-align:center}

/* Rollback flow */
.rk-roll{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}
.rk-roll div{padding:28px 24px;position:relative;border-right:1px solid var(--line)}
.rk-roll div:last-child{border-right:0;background:linear-gradient(160deg,var(--teal-soft),#fff)}
.rk-roll div:first-child{background:linear-gradient(160deg,var(--red-soft),#fff)}
.rk-roll .s{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--blue)}
.rk-roll div:first-child .s{color:var(--red)} .rk-roll div:last-child .s{color:var(--teal)}
.rk-roll h4{font-size:18px;margin:6px 0 6px}
.rk-roll p{margin:0;font-size:14.5px;color:#3a4c66}
.rk-cmp{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.rk-cmp div{border-radius:14px;padding:18px 22px;display:flex;align-items:center;gap:16px}
.rk-cmp .a{background:#f1f3f7;color:#55657c}
.rk-cmp .b{background:var(--blue);color:#fff}
.rk-cmp b{font-size:28px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.rk-cmp span{font-size:14.5px}

/* Features */
.rk-feats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.rk-feat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 20px;display:flex;flex-direction:column;gap:12px}
.rk-feat h4{font-size:16.5px;margin:0;line-height:1.45}
.rk-feat p{font-size:14px;color:#3a4c66;margin:0}
.rk-feat.hl{border-color:#f3cbc6;background:linear-gradient(160deg,#fff6f5,#fff)}
.rk-feat.hl .rk-ic{background:var(--red-soft)} .rk-feat.hl .rk-ic svg{stroke:var(--red)}
.rk-feat .pill{align-self:flex-start;font-size:11.5px;font-weight:800;color:var(--red);background:var(--red-soft);border-radius:6px;padding:2px 8px}

/* Platform */
.rk-plat{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.rk-arch{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}
.rk-arch svg{width:100%;height:auto;display:block}
.rk-pl{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.rk-pl li{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;display:flex;gap:14px;align-items:flex-start}
.rk-pl b{display:block;font-size:16px}
.rk-pl span{font-size:14.5px;color:#3a4c66}

/* Appliance */
.rk-appl{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden}
.rk-appl-top{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:34px 34px 30px;background:linear-gradient(120deg,#eef4ff,#f3fbf9)}
.rk-appl-top img{width:100%;height:auto;border-radius:12px;display:block;box-shadow:0 20px 36px -22px #10284a88}
.rk-appl-top h3{font-size:24px;margin:0 0 8px}
.rk-appl-top p{margin:0;font-size:15.5px;color:#3a4c66}
.rk-appl-g{display:grid;grid-template-columns:1fr 1fr;gap:0}
.rk-appl-c{padding:28px 34px}
.rk-appl-c+.rk-appl-c{border-left:1px solid var(--line)}
.rk-appl-c h4{font-size:17px;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.rk-appl-c h4 em{font-style:normal;font-size:12px;font-weight:800;padding:3px 8px;border-radius:6px;background:var(--blue-soft);color:var(--blue)}
.rk-appl-c.bk h4 em{background:var(--teal-soft);color:var(--teal)}
.rk-tags{display:flex;flex-wrap:wrap;gap:8px}
.rk-tags span{font-size:14px;font-weight:600;background:var(--sky);border:1px solid #e1ebfa;border-radius:10px;padding:8px 12px}
.rk-appl-c.bk .rk-tags span{background:#f2fbf9;border-color:#d4efe9}
.rk-appl-c .more{display:inline-block;margin-top:14px;font-size:14.5px;font-weight:700;color:var(--teal)!important}

/* Effects */
.rk-eff{list-style:none;margin:0;padding:0;display:grid;gap:10px;counter-reset:e}
.rk-eff li{counter-increment:e;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px 16px 74px;position:relative;font-size:16px;color:#2b3d57}
.rk-eff li::before{content:counter(e,decimal-leading-zero);position:absolute;left:20px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:800;color:var(--blue)}
.rk-eff li b{color:var(--ink)}

/* Certs & refs */
.rk-cr{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.rk-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 26px}
.rk-box h3{font-size:19px;margin:0 0 16px}
.rk-chk{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rk-chk li{position:relative;padding:10px 12px 10px 38px;background:var(--sky);border-radius:12px;font-size:14.5px;font-weight:600}
.rk-chk li::before{content:"";position:absolute;left:12px;top:13px;width:18px;height:18px;border-radius:50%;background:var(--teal) url("/assets/rc-sol-icon1.svg") center/12px no-repeat}
.rk-ref h4{font-size:14px;color:var(--sub);margin:0 0 8px;letter-spacing:.02em}
.rk-ref .rk-tags{margin-bottom:18px}
.rk-ref .rk-tags span{font-size:13.5px}
.rk-big{display:flex;align-items:baseline;gap:8px;margin-bottom:16px}
.rk-big b{font-size:38px;font-weight:800;color:var(--blue);letter-spacing:-.02em;line-height:1}
.rk-big span{font-size:15px;color:var(--sub)}

/* Price */
.rk-tbl{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
.rk-tbl table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px}
.rk-tbl th{background:var(--sky);text-align:left;font-size:13px;color:var(--sub);padding:12px 18px;border-bottom:1px solid var(--line)}
.rk-tbl td{padding:14px 18px;border-bottom:1px solid #eef2f8}
.rk-tbl tr:last-child td{border-bottom:0}
.rk-tbl td.p{text-align:right;font-weight:800;white-space:nowrap}
.rk-tbl th.p{text-align:right}
.rk-tnote{font-size:13.5px;color:var(--sub);margin:12px 0 0}

/* CTA */
.rk-cta{padding:0 0 92px}
.rk-cta-in{background:linear-gradient(120deg,#e9f2ff 0%,#eefaf7 100%);border:1px solid #d3e4fb;border-radius:24px;padding:44px 46px;display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.rk-cta h3{font-size:28px;margin:0 0 8px;font-weight:800;letter-spacing:-.02em}
.rk-cta p{margin:0;color:var(--sub);font-size:16.5px}
.rk-cta ul{list-style:none;margin:14px 0 0;padding:0;display:flex;gap:22px;flex-wrap:wrap;font-weight:700;font-size:15px}
.rk-cta ul span{color:var(--sub);font-weight:500;margin-right:6px}
.rk-note{font-size:13.5px;color:#8392a8;margin:22px 0 0}

/* Responsive */
@media (max-width:960px){
  .rk-hero .rk-wrap,.rk-plat,.rk-appl-top,.rk-cr{grid-template-columns:1fr}
  .rk-vis{max-width:380px}
  .rk-stats{grid-template-columns:1fr 1fr}
  .rk-stat:nth-child(2){border-right:0}
  .rk-stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .rk-stages{grid-template-columns:1fr}
  .rk-purp{grid-template-columns:1fr 1fr}
  .rk-layers,.rk-feats{grid-template-columns:1fr 1fr}
  .rk-layer::after{display:none}
  .rk-roll{grid-template-columns:1fr 1fr}
  .rk-roll div:nth-child(2){border-right:0}
  .rk-roll div:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:600px){
  .rk-wrap{padding:0 16px}
  .rk-sec{padding:60px 0}
  .rk-hero{padding:60px 0 96px}
  .rk-h1{font-size:31px}
  .rk-h1 small{font-size:17px}
  .rk-h2{font-size:25px}
  .rk-intro{font-size:16.5px}
  .rk-vis{max-width:300px}
  .rk-stat{padding:20px 16px}
  .rk-stat b{font-size:24px}
  .rk-purp,.rk-layers,.rk-feats,.rk-roll,.rk-cmp,.rk-appl-g,.rk-chk{grid-template-columns:1fr}
  .rk-roll div{border-right:0!important;border-bottom:1px solid var(--line)}
  .rk-roll div:last-child{border-bottom:0}
  .rk-appl-top{padding:24px 20px}
  .rk-appl-c{padding:22px 20px}
  .rk-appl-c+.rk-appl-c{border-left:0;border-top:1px solid var(--line)}
  .rk-cmp b{font-size:23px}
  .rk-cta{padding-bottom:60px}
  .rk-cta-in{padding:30px 22px}
  .rk-cta h3{font-size:23px}
}
/* 조달가격 열: 오른쪽 끝에서 살짝 안쪽으로 */
.rk-tbl th.p,.rk-tbl td.p{padding-right:48px}
@media (max-width:640px){.rk-tbl th.p,.rk-tbl td.p{padding-right:20px}}