/* ===== RanCERT 센터 소개 — 모든 스타일은 .rc-about 안에서만 적용됩니다 ===== */
.rc-about{
  --ink:#10284a; --sub:#55657c; --blue:#2563eb; --blue-2:#3b82f6; --blue-soft:#eaf2ff; --sky:#f3f8ff;
  --teal:#0e9f8f; --teal-soft:#e3f6f3; --red:#e0483e; --red-soft:#fff1ef;
  --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-about *{box-sizing:border-box}
.rc-about a{color:var(--blue);text-decoration:none}
.rc-about a:hover{text-decoration:underline}
.ra-wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.ra-sec{padding:96px 0}
.ra-sec.alt{background:var(--bg)}
.ra-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--blue);text-transform:uppercase;margin-bottom:12px}
.ra-h2{font-size:34px;line-height:1.3;font-weight:800;letter-spacing:-.02em;margin:0 0 14px}
.ra-lead{font-size:18px;color:var(--sub);margin:0 0 44px;max-width:780px}
.ra-p{font-size:17px;margin:0 0 16px;color:#2b3d57}

/* Hero */
.ra-hero{position:relative;overflow:hidden;padding:104px 0 96px;
  background:radial-gradient(900px 420px at 88% 10%,#dbe9ff 0%,transparent 65%),radial-gradient(700px 360px at 5% 100%,#e2f6f2 0%,transparent 60%),linear-gradient(180deg,#f4f8ff 0%,#ffffff 100%)}
.ra-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(#2563eb0d 1px,transparent 1px),linear-gradient(90deg,#2563eb0d 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 90%);mask-image:linear-gradient(180deg,#000 0%,transparent 90%);pointer-events:none}
.ra-hero .ra-wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.ra-crumb{font-size:14px;color:var(--sub);margin-bottom:20px}
.ra-crumb b{color:var(--ink);font-weight:600}
.ra-tag{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--blue);background:#fff;border:1px solid #cfe0fb;padding:7px 14px;border-radius:999px;margin-bottom:22px;box-shadow:0 6px 16px -10px #2563eb55}
.ra-tag i{width:8px;height:8px;border-radius:50%;background:var(--teal);display:inline-block}
.ra-h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:-.025em;margin:0 0 22px}
.ra-h1 em{font-style:normal;background:linear-gradient(90deg,var(--blue),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.ra-hero p.ra-intro{font-size:19px;color:#3a4c66;margin:0 0 34px;max-width:600px}
.ra-btns{display:flex;flex-wrap:wrap;gap:12px}
.ra-btn{display:inline-block;font-weight:700;font-size:16px;padding:15px 26px;border-radius:999px;transition:transform .15s,box-shadow .15s}
.ra-btn.primary{background:var(--blue);color:#fff!important;box-shadow:0 12px 24px -12px #2563ebaa}
.ra-btn.ghost{background:#fff;color:var(--blue)!important;border:1px solid #cfe0fb}
.ra-btn:hover{text-decoration:none!important;transform:translateY(-2px)}
.ra-visual{width:100%;max-width:420px;justify-self:center}
.ra-visual svg{width:100%;height:auto;display:block;overflow:visible}

/* Key facts strip */
.ra-facts{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:-44px;position:relative;z-index:2;overflow:hidden}
.ra-fact{padding:26px 24px;border-right:1px solid var(--line)}
.ra-fact:last-child{border-right:0}
.ra-fact .k{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.04em}
.ra-fact .v{font-size:19px;font-weight:800;margin:6px 0 4px;letter-spacing:-.01em}
.ra-fact .d{font-size:14px;color:var(--sub)}

/* About */
.ra-about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:start}
.ra-note{background:linear-gradient(160deg,var(--blue-soft),#f5f9ff);border:1px solid #d6e5fc;border-radius:18px;padding:30px 28px}
.ra-note h4{font-size:18px;margin:0 0 10px}
.ra-note p{font-size:15.5px;color:#3a4c66;margin:0 0 14px}
.ra-note ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ra-note li{background:#fff;border:1px solid #dbe7fb;border-radius:12px;padding:12px 14px;font-size:15px;font-weight:600;display:flex;gap:10px;align-items:center}
.ra-note li b{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:8px;background:var(--blue);color:#fff;font-size:13px;flex:none}

/* Lifecycle */
.ra-cycle{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ra-cycle .st{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 20px;position:relative}
.ra-cycle .st:not(:last-child)::after{content:"›";position:absolute;right:-13px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:700;color:var(--blue-2);z-index:1}
.ra-cycle .n{font-size:28px;font-weight:800;color:var(--blue);line-height:1}
.ra-cycle .en{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--sub);margin-top:14px}
.ra-cycle h4{font-size:19px;margin:4px 0 8px}
.ra-cycle p{font-size:14.5px;color:var(--sub);margin:0}
.ra-cycle .st.goal{background:linear-gradient(160deg,var(--teal-soft),#fff);border-color:#bfe8e1}
.ra-cycle .st.goal .n{color:var(--teal)}
.ra-purpose{margin-top:36px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:14px;padding:22px 26px;font-size:17px;color:#2b3d57}
.ra-purpose b{color:var(--ink)}

/* Services */
.ra-svc{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ra-svc .col{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;border-top:4px solid var(--blue)}
.ra-svc .col.c2{border-top-color:var(--teal)}
.ra-svc .col.c3{border-top-color:#7c8cf5}
.ra-svc .col .en{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--sub)}
.ra-svc .col h3{font-size:21px;margin:4px 0 18px}
.ra-svc ul{list-style:none;margin:0;padding:0}
.ra-svc li{position:relative;padding:11px 0 11px 30px;border-top:1px dashed var(--line);font-size:15.5px;color:#2b3d57}
.ra-svc li:first-child{border-top:0}
.ra-svc li::before{content:"";position:absolute;left:0;top:15px;width:18px;height:18px;border-radius:6px;background:var(--blue-soft) url('/assets/about/ra-icon-1.svg') center/12px no-repeat}
.ra-svc .c2 li::before{background-color:var(--teal-soft);background-image:url('/assets/about/ra-icon-2.svg')}
.ra-svc .c3 li::before{background-color:#eef0ff;background-image:url('/assets/about/ra-icon-3.svg')}

/* Principles */
.ra-why{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:-12px 0 40px}
.ra-why span{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:15px;font-weight:600;text-align:center}
.ra-why span b{display:block;font-size:12px;letter-spacing:.08em;color:var(--red);font-weight:700;margin-bottom:2px}
.ra-pr{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px;counter-reset:pr}
.ra-pr li{counter-increment:pr;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px 18px 70px;position:relative;font-size:16px;color:#2b3d57;min-height:68px;display:flex;align-items:center}
.ra-pr li::before{content:counter(pr,decimal-leading-zero);position:absolute;left:18px;top:50%;transform:translateY(-50%);width:38px;height:38px;border-radius:12px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:15px;display:grid;place-items:center}
.ra-pr li.k{border-color:#cfe0fb;background:linear-gradient(90deg,#f3f8ff,#fff)}
.ra-kisa{margin-top:28px;font-size:15px;color:var(--sub);background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px}

/* Emergency steps */
.ra-emg{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}
.ra-emg-box{background:linear-gradient(160deg,var(--red-soft),#fff);border:1px solid #f6d3cf;border-radius:20px;padding:34px 30px;position:sticky;top:24px}
.ra-emg-box .badge{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.1em;color:#fff;background:var(--red);border-radius:6px;padding:5px 10px;margin-bottom:14px}
.ra-emg-box h3{font-size:24px;line-height:1.4;margin:0 0 12px}
.ra-emg-box p{font-size:15.5px;color:#4a3a3a;margin:0 0 22px}
.ra-dont{display:grid;gap:10px;margin-bottom:24px}
.ra-dont div{background:#fff;border:1px solid #f3d6d2;border-radius:12px;padding:12px 14px;font-size:15px;font-weight:600;display:flex;gap:10px;align-items:center}
.ra-dont div span{flex:none;width:22px;height:22px;border-radius:50%;background:var(--red);color:#fff;font-size:13px;font-weight:800;display:grid;place-items:center}
.ra-steps{list-style:none;margin:0;padding:0;position:relative}
.ra-steps::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:2px;background:linear-gradient(180deg,var(--red),var(--blue) 45%,var(--teal))}
.ra-steps li{position:relative;padding:0 0 22px 66px}
.ra-steps li:last-child{padding-bottom:0}
.ra-steps .num{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:14px;background:#fff;border:2px solid var(--blue);color:var(--blue);font-weight:800;display:grid;place-items:center;font-size:16px}
.ra-steps li.now .num{border-color:var(--red);color:#fff;background:var(--red)}
.ra-steps li.fin .num{border-color:var(--teal);color:var(--teal)}
.ra-steps .t{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 18px;font-size:16px;color:#2b3d57;min-height:44px}
.ra-steps .t b{display:block;font-size:12px;letter-spacing:.08em;color:var(--sub);font-weight:700}

/* Operator */
.ra-op{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.ra-life{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.ra-life span{font-size:14px;font-weight:600;padding:8px 14px;border-radius:999px;background:var(--blue-soft);color:var(--blue)}
.ra-life i{font-style:normal;color:#9aaac2;align-self:center}
.ra-op-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 28px;box-shadow:0 20px 40px -30px #10284a55}
.ra-op-card h4{font-size:20px;margin:0 0 4px}
.ra-op-card .en{font-size:13px;color:var(--sub);font-weight:600;margin-bottom:18px}
.ra-op-card ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ra-op-card li{background:var(--sky);border:1px solid #e1ebfa;border-radius:12px;padding:12px 14px;font-size:14.5px;font-weight:600}
.ra-op-card .link{display:inline-block;margin-top:18px;font-weight:700}

/* CTA */
.ra-cta{padding:0 0 96px}
.ra-cta-in{background:linear-gradient(120deg,#e9f2ff 0%,#eefaf7 100%);border:1px solid #d3e4fb;border-radius:24px;padding:48px 48px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.ra-cta h3{font-size:30px;margin:0 0 8px;font-weight:800;letter-spacing:-.02em}
.ra-cta p{margin:0;color:var(--sub);font-size:17px}
.ra-cta ul{list-style:none;margin:16px 0 0;padding:0;display:flex;gap:24px;flex-wrap:wrap;font-weight:700}
.ra-cta ul li span{color:var(--sub);font-weight:500;margin-right:6px}

/* Responsive */
@media (max-width:960px){
  .ra-hero .ra-wrap,.ra-about-grid,.ra-emg,.ra-op{grid-template-columns:1fr}
  .ra-visual{max-width:360px}
  .ra-facts{grid-template-columns:1fr 1fr}
  .ra-fact:nth-child(2){border-right:0}
  .ra-fact:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .ra-cycle{grid-template-columns:1fr 1fr}
  .ra-cycle .st::after{display:none}
  .ra-cycle .st.goal{grid-column:1/-1}
  .ra-svc{grid-template-columns:1fr}
  .ra-why{grid-template-columns:1fr 1fr}
  .ra-emg-box{position:static}
}
@media (max-width:600px){
  .ra-wrap{padding:0 16px}
  .ra-sec{padding:64px 0}
  .ra-hero{padding:64px 0 80px}
  .ra-h1{font-size:31px}
  .ra-h2{font-size:26px}
  .ra-hero p.ra-intro{font-size:16.5px}
  .ra-visual{max-width:300px}
  .ra-fact{padding:20px 16px}
  .ra-fact .v{font-size:17px}
  .ra-cycle{grid-template-columns:1fr}
  .ra-pr{grid-template-columns:1fr}
  .ra-op-card ul{grid-template-columns:1fr}
  .ra-cta{padding-bottom:64px}
  .ra-cta-in{padding:32px 22px}
  .ra-cta h3{font-size:24px}
}

.rc-about .ra-s1{font-weight:700 !important;margin-bottom:20px !important}
.rc-about .ra-s2{color:var(--red) !important}
.rc-about .ra-s3{background:var(--red) !important;box-shadow:0 12px 24px -12px #e0483eaa !important}
.rc-about .ra-s4{background:var(--bg) !important}