@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700;800;900&display=swap');

:root{
  --navy:#12284c;
  --blue:#1f5eff;
  --sky:#eaf3ff;
  --ink:#152238;
  --muted:#607089;
  --line:#dce6f2;
  --yellow:#fee500;
  --paper:#f8fbff;
  --white:#fff;
  --radius:16px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:'Noto Sans KR',system-ui,sans-serif;
  line-height:1.72;
  background:var(--paper);
  word-break:keep-all;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.topbar{background:var(--navy);color:#fff;text-align:center;font-size:13px;padding:8px 14px}
.topbar b{color:#b9d7ff}
.nav{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--navy);font-size:21px}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;font-weight:900}
.nav-links{display:flex;align-items:center;gap:14px;font-size:14px;font-weight:800;color:#30445f}
.nav-cta{background:var(--blue);color:#fff;padding:10px 18px;border-radius:999px;font-weight:900;box-shadow:0 8px 18px rgba(31,94,255,.18)}
.hero{background:linear-gradient(180deg,#eef6ff 0%,#fff 76%);padding:58px 0 34px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center}
.eyebrow{display:inline-flex;background:#fff;border:1px solid var(--line);color:var(--blue);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:900;margin-bottom:18px}
h1{margin:0 0 18px;color:var(--navy);font-size:43px;line-height:1.22;letter-spacing:-.4px}
.accent{color:var(--blue)}
.hero-lead{margin:0 0 24px;color:#40526d;font-size:17px;max-width:620px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:999px;padding:14px 22px;font-weight:900}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(31,94,255,.22)}
.btn-kakao{background:var(--yellow);color:#191600}
.btn-light{background:#fff;color:var(--navy);border:1px solid var(--line)}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.hero-points div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;text-align:center;color:var(--muted);font-size:13px}
.hero-points b{display:block;color:var(--navy);font-size:21px;line-height:1.2}
.phone-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 18px 44px rgba(18,40,76,.12)}
.phone-screen{border-radius:20px;background:linear-gradient(180deg,#f2f7ff,#fff);border:1px solid var(--line);padding:18px}
.screen-title{font-size:14px;color:var(--muted);font-weight:800}
.screen-main{margin:8px 0 16px;font-size:26px;font-weight:900;color:var(--navy);line-height:1.3}
.check-list{display:grid;gap:8px}
.check-list span{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:14px;font-weight:800;color:#30445f}
.section{padding:62px 0}
.section-head{max-width:720px;margin:0 auto 30px;text-align:center}
.tag{display:inline-block;color:var(--blue);font-size:13px;font-weight:900;margin-bottom:8px}
h2{margin:0;color:var(--navy);font-size:31px;line-height:1.34}
.lead{margin:10px auto 0;color:var(--muted);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 14px;min-height:170px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;transition:.16s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 26px rgba(18,40,76,.1)}
.card-icon{display:grid;place-items:center;width:64px;height:64px;margin-bottom:14px;border-radius:18px;background:linear-gradient(135deg,#eef6ff,#dceaff);color:var(--blue);font-size:16px;font-weight:900;letter-spacing:.2px}
.card strong{display:block;color:var(--navy);line-height:1.38;font-size:15px}
.card small{display:block;margin-top:5px;color:var(--muted);font-size:13px;font-weight:800}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.info-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.info-box h3{margin:0 0 10px;color:var(--navy);font-size:19px}
.info-box p{margin:0;color:#4b5e78;font-size:15px}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.step:before{content:counter(step);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-weight:900;margin-bottom:10px}
.step h3{margin:0 0 6px;color:var(--navy);font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14px}
.usim-grid,.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.usim-card,.plan{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}
.usim-card{display:grid;grid-template-columns:130px 1fr;gap:18px;align-items:center}
.usim-visual{display:grid;place-items:center;min-height:118px;border-radius:18px;color:#fff;font-size:22px;line-height:1.2;font-weight:900;text-align:center}
.kt-visual{background:linear-gradient(135deg,#009bb4,#1f5eff)}
.lg-visual{background:linear-gradient(135deg,#e6007e,#ff8a00)}
.pill{display:inline-block;border-radius:999px;color:#fff;font-size:12px;font-weight:900;padding:4px 10px;margin-bottom:8px}
.kt{background:#009bb4}.lg{background:#e6007e}.good{background:#16a36a}.warn{background:#e87513}
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:13px;text-align:left;font-size:14px;vertical-align:top}
.tbl th{background:#edf5ff;color:var(--navy)}
.faq{display:grid;gap:10px;max-width:860px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
summary{cursor:pointer;font-weight:900;color:var(--navy)}
details p{margin:10px 0 0;color:var(--muted)}
.cta-band{background:var(--navy);color:#fff;border-radius:24px;padding:34px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#dbe7ff}
.footer{background:#0f1f39;color:#d8e2f2;padding:34px 0 88px;font-size:13px}
.footer b{color:#fff}
.footer a{text-decoration:underline;text-underline-offset:3px}
.quickbar{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);z-index:50;padding:8px 10px}
.quickbar-inner{max-width:560px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.quickbar a{display:flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 8px;font-size:14px;font-weight:900}
.quickbar .main{background:var(--blue);color:#fff}
.quickbar .kakao{background:var(--yellow);color:#191600}

@media(max-width:920px){
  .nav-links{display:none}
  .hero-grid,.info-grid,.steps,.usim-grid,.plans{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
  h1{font-size:33px}
  h2{font-size:25px}
  .hero-points{grid-template-columns:1fr 1fr 1fr}
}
@media(max-width:560px){
  .wrap{padding:0 15px}
  .hero{padding-top:38px}
  .cards{grid-template-columns:1fr}
  .hero-points{grid-template-columns:1fr}
  .usim-card{grid-template-columns:95px 1fr;padding:16px}
  .btn{width:100%}
  .cta-band{padding:26px 18px}
}