:root{
  --c-main:#3A4BF2; --c-main2:#2433C9; --c-pop:#C8F135; --c-pop2:#A7D10F;
  --c-txt:#151827; --c-sub:#5B6075; --c-bg:#FFFFFF; --c-tint:#F3F4FB; --c-ln:#E3E5F0;
  --r-lg:22px; --r-md:14px; --r-sm:10px;
  --sh:0 10px 30px rgba(36,51,201,.10);
}
*{ box-sizing:border-box; }
[hidden]{ display:none !important; }
html{ scroll-behavior:smooth; scroll-padding-top:80px; }
body{ margin:0; background:var(--c-bg); color:var(--c-txt); font-family:'Gothic A1',sans-serif; font-size:16px; line-height:1.7; -webkit-text-size-adjust:100%; word-break:keep-all; overflow-wrap:break-word; }
h1,h2,h3,h4{ font-weight:900; margin:0; letter-spacing:-.03em; line-height:1.3; }
a{ color:inherit; }
img{ max-width:100%; display:block; }
.box{ width:min(1080px, calc(100% - 32px)); margin:0 auto; }

/* 버튼 */
.bt{ display:inline-flex; align-items:center; justify-content:center; gap:6px; border:0; border-radius:999px; background:var(--c-tint); color:var(--c-txt); font-family:inherit; font-size:.95rem; font-weight:700; padding:13px 22px; cursor:pointer; text-decoration:none; transition:background .15s, transform .15s; }
.bt:hover{ background:#E6E8F7; transform:translateY(-1px); }
.bt-main{ background:var(--c-main); color:#fff; }
.bt-main:hover{ background:var(--c-main2); }
.bt-pop{ background:var(--c-pop); color:var(--c-txt); }
.bt-pop:hover{ background:var(--c-pop2); }
.bt-ghost{ background:rgba(255,255,255,.14); color:#fff; }
.bt-ghost:hover{ background:rgba(255,255,255,.24); }
.bt-s{ padding:8px 15px; font-size:.85rem; }
.bt-w{ display:flex; width:100%; }

/* 머리글 */
.hd{ position:sticky; top:0; z-index:50; background:rgba(255,255,255,.94); backdrop-filter:blur(10px); border-bottom:1px solid var(--c-ln); }
.hd-row{ display:flex; align-items:center; gap:22px; height:70px; }
.brand-mark{ display:flex; align-items:center; gap:9px; font-weight:900; font-size:1.25rem; color:var(--c-txt); text-decoration:none; letter-spacing:-.04em; }
.brand-mark svg{ width:30px; height:30px; flex:none; }
.menu{ display:flex; gap:4px; margin-left:auto; }
.menu a{ color:var(--c-sub); text-decoration:none; font-size:.93rem; font-weight:700; padding:8px 12px; border-radius:999px; }
.menu a:hover,.menu a.now{ color:var(--c-main); background:var(--c-tint); }
.hd-call{ display:flex; gap:6px; flex:none; white-space:nowrap; }
.menu-btn{ display:none; margin-left:auto; width:44px; height:44px; border:0; border-radius:12px; background:var(--c-tint); cursor:pointer; font-size:1.2rem; color:var(--c-txt); }
.m-menu{ display:none; flex-direction:column; gap:2px; padding:8px 16px 18px; border-top:1px solid var(--c-ln); background:#fff; }
.m-menu.open{ display:flex; }
.m-menu a{ text-decoration:none; padding:12px 6px; font-weight:700; color:var(--c-txt); border-radius:10px; }
.m-menu .bt{ margin-top:10px; }

/* 첫 화면 */
.intro{ background:linear-gradient(135deg,#2433C9 0%,#3A4BF2 55%,#5B4BF2 100%); color:#fff; padding:76px 0 64px; text-align:center; position:relative; overflow:hidden; }
.intro::after{ content:''; position:absolute; right:-120px; top:-120px; width:360px; height:360px; border-radius:50%; background:rgba(200,241,53,.16); }
.intro .box{ position:relative; z-index:1; }
.intro-pill{ display:inline-block; background:var(--c-pop); color:var(--c-txt); font-weight:800; font-size:.85rem; padding:6px 14px; border-radius:999px; }
.intro h1{ font-size:clamp(2rem,5vw,3.3rem); margin:18px auto 0; max-width:18em; }
.intro h1 em{ font-style:normal; color:var(--c-pop); }
.intro-lead{ margin:18px auto 28px; max-width:36em; color:#DDE1FF; font-size:1.05rem; }
.intro-bts{ display:flex; justify-content:center; flex-wrap:wrap; gap:10px; }
.intro-facts{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; margin:38px auto 0; max-width:860px; }
.intro-facts div{ background:rgba(255,255,255,.10); border:1px solid rgba(255,255,255,.18); border-radius:var(--r-md); padding:14px 10px; }
.intro-facts b{ display:block; font-size:1.15rem; color:#fff; }
.intro-facts span{ font-size:.8rem; color:#C9CEFF; }
.intro-chips{ display:flex; justify-content:center; flex-wrap:wrap; gap:8px; margin-top:20px; }
.intro-chips span{ font-size:.82rem; color:#E7E9FF; padding:5px 12px; border-radius:999px; background:rgba(0,0,0,.14); }

/* 공통 블록 */
section{ padding:80px 0; }
.tint{ background:var(--c-tint); }
.blk-title{ text-align:center; margin:0 auto 40px; max-width:680px; }
.blk-label{ display:inline-block; color:var(--c-main); font-weight:800; font-size:.85rem; letter-spacing:.04em; }
.blk-title h2,.blk-title h1{ font-size:clamp(1.6rem,3.4vw,2.3rem); margin-top:8px; }
.blk-title p{ color:var(--c-sub); margin:12px 0 0; }

/* 개통 종류 */
.pick-row{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.pick-card{ background:#fff; border-radius:var(--r-lg); padding:28px 24px; box-shadow:var(--sh); display:flex; flex-direction:column; gap:10px; }
.pick-ico{ width:48px; height:48px; border-radius:14px; display:grid; place-items:center; background:var(--c-tint); color:var(--c-main); font-weight:900; font-size:1.2rem; }
.pick-card h3{ font-size:1.2rem; }
.pick-sub{ margin:0; display:inline-block; align-self:flex-start; background:var(--c-pop); font-size:.8rem; font-weight:800; padding:3px 10px; border-radius:999px; }
.pick-card ul{ margin:4px 0 14px; padding:0; list-style:none; display:grid; gap:8px; color:var(--c-sub); font-size:.93rem; }
.pick-card li{ padding-left:20px; position:relative; }
.pick-card li::before{ content:''; position:absolute; left:2px; top:.62em; width:8px; height:8px; border-radius:50%; background:var(--c-main); opacity:.55; }
.pick-card .bt{ margin-top:auto; }

/* 요금표 */
.telco-sel{ display:flex; justify-content:center; gap:8px; background:var(--c-tint); padding:6px; border-radius:999px; max-width:520px; margin:0 auto 14px; }
.telco-sel button{ flex:1; border:0; background:none; border-radius:999px; padding:13px 10px; font-family:inherit; font-weight:800; font-size:.98rem; color:var(--c-sub); cursor:pointer; }
.telco-sel button.on{ background:var(--c-main); color:#fff; box-shadow:0 6px 16px rgba(58,75,242,.3); }
.kind-sel{ display:flex; justify-content:center; gap:6px; margin-bottom:26px; }
.kind-sel button{ border:1.5px solid var(--c-ln); background:#fff; border-radius:999px; padding:8px 18px; font-family:inherit; font-weight:700; color:var(--c-sub); cursor:pointer; }
.kind-sel button.on{ border-color:var(--c-txt); color:#fff; background:var(--c-txt); }
.fee-hint{ text-align:center; color:var(--c-sub); font-size:.92rem; margin:0; }
.fee-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
.fee-card{ background:#fff; border:1px solid var(--c-ln); border-radius:var(--r-lg); padding:22px; display:flex; flex-direction:column; gap:12px; }
.fee-card:hover{ border-color:var(--c-main); box-shadow:var(--sh); }
.fee-tag{ align-self:flex-start; font-size:.75rem; font-weight:800; padding:4px 10px; border-radius:999px; background:var(--c-tint); color:var(--c-main); }
.fee-tag.k-postpaid{ background:#FFF4D6; color:#8A6200; }
.fee-tag.k-contract{ background:#E9FBD0; color:#3F6100; }
.fee-card h4{ font-size:1.08rem; }
.fee-won{ margin:0; font-weight:900; font-size:1.6rem; color:var(--c-txt); letter-spacing:-.03em; }
.fee-won small{ font-size:.8rem; color:var(--c-sub); font-weight:600; margin-left:4px; }
.fee-list{ margin:0; padding:0; display:grid; gap:6px; font-size:.9rem; }
.fee-list div{ display:grid; grid-template-columns:64px 1fr; gap:8px; padding-top:6px; border-top:1px dashed var(--c-ln); }
.fee-list dt{ color:var(--c-sub); }
.fee-list dd{ margin:0; font-weight:600; }
.fee-memo{ margin:0; font-size:.8rem; color:var(--c-sub); }
.fee-card .bt{ margin-top:auto; }
.fee-more{ text-align:center; margin-top:24px; }

/* 따라하기 */
.heads-up{ display:grid; gap:6px; margin:20px auto 0; padding:16px 20px; border-radius:var(--r-md); background:#FFFBE6; border:1px solid #F3E3A0; text-align:left; max-width:620px; }
.heads-up p{ margin:0; font-size:.9rem; }
.flow-list{ list-style:none; margin:0 auto; padding:0; max-width:780px; position:relative; }
.flow-list::before{ content:''; position:absolute; left:23px; top:10px; bottom:10px; width:2px; background:var(--c-ln); }
.flow-item{ display:grid; grid-template-columns:48px 1fr; gap:18px; padding:0 0 22px; position:relative; }
.flow-num{ width:48px; height:48px; border-radius:50%; background:var(--c-main); color:#fff; display:grid; place-items:center; font-weight:900; font-size:1.1rem; box-shadow:0 0 0 6px var(--c-bg); }
.tint .flow-num{ box-shadow:0 0 0 6px var(--c-tint); }
.flow-txt{ background:#fff; border-radius:var(--r-md); padding:16px 20px; border:1px solid var(--c-ln); }
.flow-txt h3{ font-size:1.05rem; margin-bottom:4px; }
.flow-txt p{ margin:0; color:var(--c-sub); font-size:.94rem; }
.flow-txt .flow-alert{ margin-top:8px; color:#B4232C; font-weight:700; font-size:.88rem; }
.flow-bt{ margin-top:12px; }

/* 유심 */
.sim-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; max-width:860px; margin:0 auto; }
.sim-card{ background:#fff; border-radius:var(--r-lg); padding:26px; box-shadow:var(--sh); text-align:center; }
.sim-net{ display:inline-block; font-size:.78rem; font-weight:800; color:var(--c-main); background:var(--c-tint); padding:4px 12px; border-radius:999px; }
.sim-card h3{ font-size:1.25rem; margin-top:10px; }
.sim-photo{ width:100%; max-width:220px; margin:16px auto; border-radius:var(--r-sm); }
.sim-won{ font-weight:900; font-size:1.5rem; margin:0; }
.sim-card ul{ list-style:none; margin:12px 0 18px; padding:0; color:var(--c-sub); font-size:.92rem; display:grid; gap:4px; }

/* 방문예약 */
.store-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:12px; align-items:start; }
.store-grp{ background:#fff; border-radius:var(--r-md); border:1px solid var(--c-ln); overflow:hidden; }
.store-grp summary{ display:flex; align-items:center; justify-content:space-between; gap:10px; padding:16px 20px; cursor:pointer; font-weight:800; list-style:none; }
.store-grp summary::-webkit-details-marker{ display:none; }
.store-grp summary small{ font-weight:700; color:var(--c-main); background:var(--c-tint); padding:3px 10px; border-radius:999px; }
.store-ul{ list-style:none; margin:0; padding:0 20px 14px; }
.store-ul li{ display:flex; align-items:center; gap:12px; padding:11px 0; border-top:1px solid var(--c-ln); }
.store-ul strong{ display:block; font-size:.94rem; }
.store-ul span{ color:var(--c-sub); font-size:.84rem; }
.store-ul .bt{ margin-left:auto; flex:none; }

/* 지역 */
.region-grid{ display:grid; grid-template-columns:repeat(6,minmax(0,1fr)); gap:10px; }
.region-chip{ display:block; background:#fff; border:1px solid var(--c-ln); border-radius:var(--r-md); padding:14px 10px; text-align:center; text-decoration:none; }
.region-chip:hover{ border-color:var(--c-main); color:var(--c-main); }
.region-chip strong{ display:block; font-size:1rem; }
.region-chip span{ font-size:.76rem; color:var(--c-sub); }
#need .region-grid{ grid-template-columns:repeat(4,minmax(0,1fr)); }
#need .region-chip{ padding:18px 12px; text-align:left; }
#need .region-chip strong{ font-size:.98rem; }
#need .region-chip span{ color:var(--c-main); font-weight:700; }

/* 같은 이름 동네 */
.twin-box{ background:#fff; border:1px solid var(--c-ln); border-radius:var(--r-md); max-width:620px; margin:0 auto; }
.twin-box summary{ cursor:pointer; padding:14px 18px; font-weight:800; display:flex; justify-content:space-between; gap:10px; list-style:none; }
.twin-box summary::-webkit-details-marker{ display:none; }
.twin-box summary small{ color:var(--c-main); font-weight:700; }
.twin-in{ padding:0 18px 18px; }
.twin-in > p{ color:var(--c-sub); font-size:.88rem; margin:0 0 12px; }
.twin-links{ display:flex; flex-wrap:wrap; gap:6px; }
.twin-links a{ border-radius:999px; background:var(--c-tint); padding:6px 12px; font-size:.82rem; font-weight:700; text-decoration:none; white-space:nowrap; }
.twin-links a:hover{ background:var(--c-main); color:#fff; }
.twin-links a.now{ background:var(--c-pop); }
#twin{ padding:28px 0 0; }

/* 궁금증 */
.ask-tabs{ display:flex; flex-wrap:wrap; justify-content:center; gap:6px; margin-bottom:22px; }
.ask-tab{ border:1.5px solid var(--c-ln); background:#fff; border-radius:999px; padding:8px 16px; cursor:pointer; font-family:inherit; font-weight:700; color:var(--c-sub); }
.ask-tab.on{ background:var(--c-main); border-color:var(--c-main); color:#fff; }
.ask-list{ display:grid; gap:10px; max-width:820px; margin:0 auto; }
.ask-item{ background:#fff; border-radius:var(--r-md); border:1px solid var(--c-ln); }
.ask-item summary{ padding:17px 50px 17px 20px; cursor:pointer; font-weight:800; list-style:none; position:relative; }
.ask-item summary::-webkit-details-marker{ display:none; }
.ask-item summary::after{ content:'+'; position:absolute; right:20px; top:12px; font-size:1.4rem; color:var(--c-main); }
.ask-item[open] summary::after{ content:'−'; }
.ask-item p{ margin:0; padding:0 20px 18px; color:var(--c-sub); font-size:.95rem; }

/* 바닥글 */
.ft{ background:#0F1226; color:#A9AEC9; padding:52px 0 34px; }
.ft-row{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:30px; }
.ft .brand-mark{ color:#fff; }
.ft-about p{ margin:10px 0 0; font-size:.92rem; max-width:30em; }
.ft-cols{ display:flex; gap:44px; }
.ft-cols div{ display:grid; gap:8px; font-size:.92rem; align-content:start; }
.ft-cols strong{ color:#fff; }
.ft-cols a{ color:#A9AEC9; text-decoration:none; }
.ft-cols a:hover{ color:var(--c-pop); }
.ft-copy{ margin-top:34px; padding-top:18px; border-top:1px solid rgba(255,255,255,.1); font-size:.84rem; }

/* 떠 있는 상담 */
.quick{ position:fixed; left:50%; transform:translateX(-50%); bottom:16px; display:flex; gap:6px; z-index:60; background:#fff; padding:6px; border-radius:999px; box-shadow:0 10px 30px rgba(15,18,38,.22); }
.quick a{ white-space:nowrap; text-decoration:none; font-weight:800; font-size:.9rem; padding:11px 20px; border-radius:999px; }
.quick .q-kakao{ background:#FEE500; color:#3A1D1D; }
.quick .q-tel{ background:var(--c-main); color:#fff; }

/* 경로 표시 */
.path{ font-size:.88rem; color:var(--c-sub); margin-bottom:14px; text-align:center; }
.path a{ text-decoration:none; color:var(--c-main); font-weight:700; }

/* 상황 페이지 */
.story-body{ display:grid; gap:14px; max-width:780px; margin:0 auto; }
.story-blk{ background:#fff; border-radius:var(--r-lg); padding:24px 26px; box-shadow:var(--sh); }
.story-blk h2{ font-size:1.15rem; margin-bottom:8px; }
.story-blk p{ margin:0; color:var(--c-sub); }
.story-bt{ display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin-top:28px; }

/* 예약 창 */
.layer{ position:fixed; inset:0; background:rgba(15,18,38,.55); display:grid; place-items:center; padding:16px; z-index:70; }
.layer-in{ background:#fff; border-radius:var(--r-lg); width:min(500px,100%); max-height:88vh; overflow:auto; padding:28px 24px; position:relative; }
.layer-in h3{ font-size:1.3rem; margin-bottom:4px; }
.layer-in .layer-sub{ color:var(--c-main); font-weight:700; font-size:.92rem; margin:0 0 18px; }
.layer-x{ position:absolute; top:12px; right:14px; width:36px; height:36px; border:0; border-radius:50%; background:var(--c-tint); font-size:1.3rem; cursor:pointer; }
.telco2{ display:grid; grid-template-columns:1fr 1fr; gap:6px; }
.telco-b{ border:1.5px solid var(--c-ln); background:#fff; border-radius:var(--r-sm); padding:12px; font-family:inherit; font-weight:800; cursor:pointer; }
.telco-b.on{ background:var(--c-main); border-color:var(--c-main); color:#fff; }
.opt-list{ display:grid; gap:8px; max-height:320px; overflow:auto; }
.opt{ display:flex; gap:10px; align-items:flex-start; border:1.5px solid var(--c-ln); border-radius:var(--r-sm); padding:12px 14px; cursor:pointer; }
.opt:has(input:checked){ border-color:var(--c-main); background:#F5F6FF; }
.opt input{ margin-top:5px; }
.opt strong{ display:flex; justify-content:space-between; gap:10px; }
.opt strong i{ font-style:normal; color:var(--c-main); white-space:nowrap; }
.opt small{ display:block; color:var(--c-sub); font-size:.84rem; line-height:1.5; margin-top:2px; }
.opt > span{ flex:1; }
.fld{ margin-bottom:14px; }
.fld > label,.fld > p.fld-name{ display:block; font-weight:800; font-size:.9rem; margin:0 0 6px; }
.fld input{ width:100%; border:1.5px solid var(--c-ln); border-radius:var(--r-sm); padding:12px; font-family:inherit; font-size:.95rem; }
.fld input:focus{ outline:none; border-color:var(--c-main); }
.fld-tip{ color:var(--c-sub); font-size:.82rem; margin:6px 0 0; }

@media (max-width:1120px){
  .menu,.hd-call{ display:none; }
  .menu-btn{ display:block; }
}
@media (max-width:980px){
  .pick-row,.fee-grid{ grid-template-columns:1fr 1fr; }
  .region-grid{ grid-template-columns:repeat(4,minmax(0,1fr)); }
  #need .region-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .store-wrap{ grid-template-columns:1fr; }
}
@media (max-width:640px){
  section{ padding:56px 0; }
  .intro{ padding:52px 0 44px; }
  .intro-facts{ grid-template-columns:1fr 1fr; }
  .pick-row,.fee-grid,.sim-row{ grid-template-columns:1fr; }
  .region-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }
  .region-chip{ padding:12px 6px; }
  .flow-item{ grid-template-columns:38px 1fr; gap:12px; }
  .flow-num{ width:38px; height:38px; font-size:.95rem; }
  .flow-list::before{ left:18px; }
  .story-blk{ padding:18px; }
  .quick a{ padding:10px 16px; font-size:.85rem; }
  .ft{ padding-bottom:90px; }
}
@media (max-width:380px){
  .region-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}