/* ===== KT텔레캅 지니원 — 재구축 v1 ===== */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#12181b; --ink2:#3a4650; --line:rgba(2,60,66,.12);
  --mint:#17a0aa; --mint-lt:#5fe6e0; --red:#e63946; --red-dk:#c92f3b;
  --paper:#ffffff; --paper2:#f2f7f8; --paper3:#e6f0f1;
  --graphite1:#12181b; --graphite2:#0b0e10;
}
html{scroll-behavior:auto}
/* 앵커 이동시 고정 헤더에 가리지 않게 여백 */
section[id],[id="contact"],[id="faq"],[id="reviews"],[id="video"]{scroll-margin-top:60px}
body{font-family:"Noto Sans KR",system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* ===== 상단바 (2단: 로고줄 + 메뉴줄, 스크롤시 로고줄 숨김) ===== */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd-top{max-height:76px;overflow:hidden;transition:max-height .28s ease,opacity .2s ease,border-color .2s ease;border-bottom:1px solid var(--line)}
.hd-top-in{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:14px}
.logo{display:inline-flex;align-items:center}
.logo-img{height:34px;display:block;width:auto}
.hd-tel{margin-left:auto;font-weight:700;color:var(--ink);font-size:16px;white-space:nowrap}
/* 스크롤시 로고줄 접힘 */
.hd.scrolled .hd-top{max-height:0;opacity:0;padding:0;border-color:transparent}
/* 메뉴줄 */
.hd-nav{background:rgba(255,255,255,.96)}
.hd-nav-in{max-width:1080px;margin:0 auto;padding:0 14px}
.gnb{display:flex;gap:2px;align-items:center;font-size:15px;font-weight:600;flex-wrap:wrap}
.gnb-item{position:relative}
.gnb-top{display:block;color:var(--ink2);padding:13px 14px;border-radius:8px;white-space:nowrap}
.gnb-top:hover,.gnb-top.active{color:var(--mint);background:var(--paper2)}
.caret{font-size:11px;color:#9aa7ad}
.submenu{position:absolute;top:100%;left:0;min-width:190px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(2,60,66,.14);padding:8px;display:none;z-index:60}
.gnb-item:hover .submenu,.gnb-item:focus-within .submenu,.gnb-item.open .submenu{display:block}
.sub-a{display:block;padding:10px 12px;border-radius:8px;color:var(--ink2);font-weight:500;font-size:14.5px;white-space:nowrap}
.sub-a:hover,.sub-a.active{background:var(--paper2);color:var(--mint)}
.gnb-cta{background:var(--red);color:#fff!important;padding:9px 16px;border-radius:8px;font-weight:700;margin-left:auto}
.gnb-cta:hover{background:var(--red-dk)}
@media(max-width:900px){
  .hd-top-in{padding:10px 16px}
  .logo-img{height:30px}
  .hd-tel{font-size:15px}
  /* 카테고리 한 줄 — 넘치면 가로 스크롤 */
  .hd-nav-in{padding:0 6px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .hd-nav-in::-webkit-scrollbar{display:none}
  .gnb{gap:0;flex-wrap:nowrap;width:max-content}
  .gnb-top{padding:12px 12px;font-size:14.5px}
  .gnb-cta{display:none}            /* 모바일은 하단 고정바에 무료견적 있음 */
  .submenu{position:fixed;min-width:170px}
}

/* ===== 히어로 ===== */
.hero{background:radial-gradient(100% 78% at 50% -5%,rgba(23,160,170,.42) 0%,rgba(23,160,170,0) 55%),linear-gradient(180deg,var(--graphite1) 0%,var(--graphite2) 100%);color:#eafcfb;padding:clamp(48px,6vw,88px) 0}
.hero-in{max-width:1080px;margin:0 auto;padding:0 20px;text-align:center}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--mint-lt);border:1px solid rgba(95,230,224,.4);border-radius:999px;padding:6px 16px;margin-bottom:22px}
.hero-h{font-family:"Black Han Sans",sans-serif;font-weight:400;font-size:clamp(30px,5vw,56px);line-height:1.15;letter-spacing:-.01em}
.hero-h em{color:var(--mint-lt);font-style:normal}
.hero-lead{max-width:640px;margin:16px auto 0;font-size:clamp(15px,1.7vw,19px);color:#c8e9e8}
.cards{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:36px 0 8px}
.card{flex:1 1 240px;max-width:320px;background:rgba(255,255,255,.05);border:1px solid rgba(95,230,224,.18);border-radius:14px;padding:20px;text-align:left}
.card-t{display:block;font-weight:900;font-size:18px;color:var(--mint-lt);margin-bottom:6px}
.card-d{font-size:14px;color:#bfe3e2}
.nums{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:30px 0}
.num{flex:1 1 130px;max-width:180px;background:rgba(0,0,0,.25);border-radius:12px;padding:16px 10px}
.num b{display:block;font-family:"Black Han Sans",sans-serif;font-size:24px;color:#fff}
.num span{font-size:13px;color:#a9d3d2}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.identity{margin-top:24px;font-size:13px;color:#8fb6b5;line-height:1.7}

/* 버튼 */
.btn-red{display:inline-block;background:var(--red);color:#fff;font-weight:700;padding:14px 26px;border-radius:10px;font-size:16px;border:0;cursor:pointer;transition:.15s}
.btn-red:hover{background:var(--red-dk)}
.btn-red.wide{width:100%;padding:15px}
.btn-ghost{display:inline-block;border:1.5px solid rgba(255,255,255,.5);color:#fff;padding:14px 24px;border-radius:10px;font-weight:700;font-size:16px}
.btn-ghost:hover{border-color:var(--mint-lt);color:var(--mint-lt)}
.btn-outline{display:block;margin:22px auto 0;border:1.5px solid var(--mint);color:var(--mint);background:#fff;padding:12px 26px;border-radius:10px;font-weight:700;cursor:pointer;font-size:15px}
.btn-outline:hover{background:var(--mint);color:#fff}
.btn-ghost-dark{border:1.5px solid var(--line);background:#fff;color:var(--ink2);padding:14px 22px;border-radius:10px;font-weight:700;cursor:pointer}

/* ===== 섹션 공통 ===== */
.sec{padding:clamp(44px,5vw,72px) 0;border-top:1px solid var(--line)}
.sec-h{text-align:center;font-size:clamp(23px,3vw,32px);font-weight:900;letter-spacing:-.01em}
.sec-sub{text-align:center;color:var(--ink2);margin:10px 0 34px;font-size:15px}
.sec-reviews{background:var(--paper)}
.sec-reasons{background:var(--paper3)}
.sec-faq{background:var(--paper)}
.sec-industry{background:var(--paper2)}
.sec-video{background:var(--paper3)}

/* ===== 영상 ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-bottom:8px}
.vthumb,.video-grid iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:14px;background-size:cover;background-position:center;position:relative;cursor:pointer;box-shadow:0 4px 14px rgba(2,60,66,.12)}
.vthumb::after{content:"";position:absolute;inset:0;background:rgba(4,20,22,.28);border-radius:14px}
.vplay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;width:58px;height:58px;border-radius:50%;background:rgba(230,57,70,.92);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;padding-left:4px}
.vthumb:hover .vplay{background:var(--red)}

/* ===== 후기 ===== */
.review-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
/* 모바일: 홈 설치후기·영상은 4개만 노출 */
@media(max-width:820px){
  #reviews #reviewList .rv:nth-child(n+5){display:none}
  #videoGrid > *:nth-child(n+5){display:none}
}
.rv{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 2px 10px rgba(2,60,66,.04);display:flex;flex-direction:column}
.rv-img{position:relative;width:100%;aspect-ratio:4/3;overflow:hidden;background:#eef4f5}
.rv-img img{width:100%;height:100%;object-fit:cover;display:block}
.rv-more{position:absolute;right:8px;bottom:8px;background:rgba(4,20,22,.72);color:#fff;font-size:12px;font-weight:700;padding:3px 9px;border-radius:20px}
.rv-b{padding:16px 18px;display:flex;flex-direction:column;flex:1}
.rv-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px;gap:8px}
.rv-name{font-weight:700}
.rv-shop{font-size:13px;color:var(--mint);font-weight:500}
.rv-stars{color:#f5a623;font-size:15px;letter-spacing:1px}
.rv-body{font-size:14.5px;color:#2a343c;white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden}
.rv-date{font-size:12px;color:#9aa7ad;margin-top:10px}
.loading{text-align:center;color:#9aa7ad;grid-column:1/-1}
.review-more{text-align:center;margin-top:22px}
.btn-outline-2{margin-top:12px}
.rv{cursor:pointer;transition:.15s}
.rv:hover{border-color:var(--mint);box-shadow:0 10px 24px rgba(2,60,66,.12);transform:translateY(-2px)}
.rv:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.rv-reply-tag{float:right;background:var(--paper3);color:var(--mint);font-weight:700;font-size:11.5px;padding:2px 8px;border-radius:20px}

/* 후기 모달 */
.rvmodal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:18px}
.rvmodal[hidden]{display:none}
.rvmodal-bg{position:absolute;inset:0;background:rgba(4,20,22,.62)}
.rvmodal-box{position:relative;background:#fff;border-radius:16px;max-width:560px;width:100%;max-height:88vh;overflow-y:auto;padding:22px;box-shadow:0 24px 60px rgba(0,0,0,.35)}
.rvmodal-x{position:absolute;top:10px;right:12px;background:none;border:0;font-size:30px;line-height:1;color:#9aa7ad;cursor:pointer;z-index:2}
.rvmodal-x:hover{color:var(--ink)}
.rvm-photos{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.rvm-photos img{width:100%;border-radius:10px;display:block}
.rvm-photos img:only-child{grid-column:1/-1;max-height:60vh;object-fit:contain;background:#eef4f5}
.rvm-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.rvm-name{font-weight:700;font-size:18px}
.rvm-meta{color:#9aa7ad;font-size:13px;margin:4px 0 14px}
.rvm-body{font-size:15px;color:#2a343c;line-height:1.75;white-space:pre-wrap}
.rvm-replies{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}
.rvm-replies-h{font-weight:700;font-size:14px;color:var(--mint);margin-bottom:10px}
.rvm-reply{background:var(--paper2);border-radius:12px;padding:12px 14px;margin-bottom:8px;font-size:14px;color:#2a343c;line-height:1.6}
.rvm-reply-l{display:block;font-size:11.5px;font-weight:700;color:var(--mint);margin-bottom:4px}
.logo-img{height:30px;width:auto;display:block}

/* ===== 슬라이더 ===== */
.slider{position:relative;background:radial-gradient(120% 130% at 50% -10%,rgba(23,160,170,.30) 0%,rgba(23,160,170,0) 52%),linear-gradient(180deg,#12181b 0%,#0b0e10 100%)}
.slider-inner{position:relative;max-width:820px;margin:0 auto;overflow:hidden}
.slides{display:flex;transition:transform .5s ease}
.slide{flex:0 0 100%;display:block}
.slide img{display:block;width:100%;height:auto}
.sl-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:26px;line-height:1;cursor:pointer;z-index:3;transition:.15s}
.sl-nav:hover{background:rgba(255,255,255,.34)}
.sl-prev{left:14px}.sl-next{right:14px}
.sl-dots{position:absolute;left:0;right:0;bottom:12px;display:flex;gap:8px;justify-content:center;z-index:3}
.sl-dot{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;padding:0}
.sl-dot.on{background:#fff;width:22px;border-radius:5px}
@media(max-width:640px){.sl-nav{width:36px;height:36px;font-size:20px}}

/* 후기·문의 폼 */
.rform,.iform{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;margin-top:22px;max-width:560px;margin-left:auto;margin-right:auto;text-align:left}
.rform h3,.iform h3{font-size:19px;margin-bottom:16px}
.rform label,.iform label{display:block;font-size:14px;font-weight:500;color:var(--ink2);margin-bottom:14px}
.rform input,.rform textarea,.rform select,.iform input,.iform textarea,.iform select{display:block;width:100%;margin-top:6px;padding:11px 13px;border:1px solid #cdd8da;border-radius:9px;font-size:15px;font-family:inherit;color:var(--ink)}
.rform textarea,.iform textarea{resize:vertical}
.frow{display:flex;gap:12px}
.frow label{flex:1}
.hint{font-size:12.5px;color:#9aa7ad;margin:-4px 0 14px}
.rphoto{margin-bottom:14px}
.rphoto-btn{display:inline-flex;align-items:center;gap:6px;background:var(--paper2);border:1px dashed var(--mint);color:var(--mint);border-radius:9px;padding:11px 16px;font-size:14px;font-weight:600;cursor:pointer}
.rphoto-btn span{color:#9aa7ad;font-weight:400;font-size:12.5px}
.rphoto-btn:hover{background:rgba(23,160,170,.1)}
.rphoto-prev{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.rphoto-item{position:relative;width:76px;height:76px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.rphoto-item img{width:100%;height:100%;object-fit:cover;display:block}
.rphoto-item button{position:absolute;top:2px;right:2px;width:20px;height:20px;border:0;border-radius:50%;background:rgba(4,20,22,.72);color:#fff;font-size:14px;line-height:1;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center}
.rform-btns{display:flex;gap:10px}
.form-msg{margin-top:12px;font-size:14px;font-weight:600;min-height:20px}
.form-msg.ok{color:var(--mint)}
.form-msg.err{color:var(--red)}

/* ===== 추천이유 ===== */
.reason-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.reason{background:#fff;border-radius:14px;padding:22px;border:1px solid var(--line)}
.reason h3{font-size:17px;color:var(--mint);margin-bottom:8px}
.reason p{font-size:14.5px;color:#2a343c}

/* ===== FAQ ===== */
.faq-tabs{max-width:760px;margin:0 auto 18px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.faq-tab{border:1px solid var(--line);background:#fff;color:#4a545c;font-weight:700;font-size:14px;padding:8px 18px;border-radius:999px;cursor:pointer;transition:all .15s}
.faq-tab:hover{border-color:var(--mint)}
.faq-tab.is-on{background:var(--ink,#0f2a2e);color:#fff;border-color:var(--ink,#0f2a2e)}
.faq-list{max-width:760px;margin:0 auto}
.faq-list details{border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:12px;background:#fff}
.faq-list details[hidden]{display:none}
.faq-list summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;position:relative;padding-right:28px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:2px;top:14px;font-size:22px;color:var(--mint);font-weight:400}
.faq-list details[open] summary::after{content:"–"}
.faq-list .faq-a{padding:0 0 16px;color:#2a343c;font-size:14.5px}
.faq-list .faq-a p{margin:0 0 10px;line-height:1.7}
.faq-list .faq-a p:last-child{margin-bottom:0}
.faq-list .faq-a a{color:#1a73c0;word-break:break-all}
.faq-cat{color:var(--mint);font-weight:800;margin-right:4px}
.faq-pager{max-width:760px;margin:20px auto 0;display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.faq-pg{min-width:38px;height:38px;padding:0 10px;border:1px solid var(--line);background:#fff;color:var(--ink2);font-weight:700;border-radius:9px;cursor:pointer}
.faq-pg:hover:not(:disabled){border-color:var(--mint)}
.faq-pg.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.faq-pg:disabled{opacity:.35;cursor:default}
.faq-list .faq-a .faq-img{display:block;width:100%;max-width:520px;height:auto;margin:6px 0;border:1px solid var(--line);border-radius:8px}

/* ===== 업종별 ===== */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:720px;margin:0 auto 34px}
.ind-grid span{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 8px;text-align:center;font-weight:700;color:var(--ink2)}
.svc3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.svc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.svc h3{color:var(--mint);margin-bottom:8px;font-size:17px}
.svc p{font-size:14.5px;color:#2a343c}
@media(max-width:560px){.ind-grid{grid-template-columns:repeat(2,1fr)}}

/* ===== 상담 ===== */
.sec-contact{background:linear-gradient(180deg,var(--graphite1),var(--graphite2));color:#eafcfb}
.contact-in{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.contact-left .eyebrow{margin-bottom:14px}
.big-tel{font-family:"Black Han Sans",sans-serif;font-size:clamp(34px,5vw,52px);color:#fff;display:block;margin:6px 0}
.contact-time{color:#a9d3d2;font-size:14px}
.sec-contact .iform{background:rgba(255,255,255,.97);color:var(--ink)}
.prodpick{margin-bottom:14px}
.prodpick-label{display:block;font-size:14px;font-weight:500;color:var(--ink2);margin-bottom:8px}
.prodpick-label em{color:#9aa7ad;font-style:normal;font-weight:400;font-size:12.5px}
.prodpick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.prodpick-grid label{display:flex!important;align-items:center;gap:6px;margin:0!important;background:var(--paper2);border:1px solid var(--line);border-radius:9px;padding:9px 8px;font-size:13.5px;cursor:pointer;font-weight:500;color:var(--ink)}
.prodpick-grid label:has(input:checked){background:rgba(23,160,170,.12);border-color:var(--mint);color:var(--mint)}
.prodpick-grid input{width:auto!important;margin:0!important}
@media(max-width:560px){.prodpick-grid{grid-template-columns:repeat(2,1fr)}}
.agree{display:flex!important;align-items:center;gap:8px;font-size:14px}
.agree input{width:auto!important;margin:0!important}
@media(max-width:760px){.contact-in{grid-template-columns:1fr}}

/* ===== 푸터 ===== */
.ft{background:#0b0e10;color:#8fb6b5;padding:28px 0 90px;text-align:center;font-size:13px}
.ft-co{color:#c8e9e8;font-weight:500;margin-bottom:6px}

/* 고정 하단바 */
.fixbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;box-shadow:0 -2px 12px rgba(0,0,0,.2)}
.fixbar-b{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:15px 8px;font-weight:800;font-size:15px;color:#fff;text-align:center}
.fixbar-quote{background:var(--red)}
.fixbar-quote:active{background:var(--red-dk)}
.fixbar-call{background:var(--graphite1)}
.fixbar-call:active{background:var(--graphite2)}
@media(max-width:820px){.fixbar{display:flex}.ft{padding-bottom:90px}}

/* ===== 서브페이지 (카테고리 상세) ===== */
.pagehead{background:radial-gradient(100% 80% at 50% -10%,rgba(23,160,170,.38) 0%,rgba(23,160,170,0) 55%),linear-gradient(180deg,var(--graphite1),var(--graphite2));color:#eafcfb;padding:clamp(38px,5vw,64px) 20px;text-align:center}
.pagehead .crumb{font-size:13px;color:var(--mint-lt);font-weight:600;margin-bottom:10px;letter-spacing:.02em}
.pagehead h1{font-family:"Black Han Sans",sans-serif;font-weight:400;font-size:clamp(26px,4vw,42px)}
.pagehead p{color:#bfe3e2;margin-top:10px;font-size:15px}
.stack{max-width:900px;margin:0 auto;padding:28px 16px 60px;display:flex;flex-direction:column;align-items:center}
.stack img{display:block;width:auto;max-width:100%;height:auto;border-radius:4px}
.stack img+img{margin-top:6px}
.subcta{max-width:920px;margin:0 auto 70px;padding:0 16px;text-align:center}
.subcta .btn-red{margin-top:4px}

/* ===== 게시판 목록 ===== */
.board-list{max-width:820px;margin:0 auto;padding:34px 16px 10px;display:grid;gap:14px}
.bcard{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:.15s;box-shadow:0 2px 10px rgba(2,60,66,.04)}
.bcard:hover{border-color:var(--mint);box-shadow:0 8px 22px rgba(2,60,66,.1);transform:translateY(-2px)}
.bcard h3{font-size:17.5px;color:var(--ink);margin-bottom:7px;line-height:1.4}
.bcard p{font-size:14.5px;color:var(--ink2)}
.bdate{display:inline-block;margin-top:10px;font-size:12.5px;color:#9aa7ad}
.btag{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--red);border-radius:6px;padding:3px 9px;margin-bottom:9px}
.bcard-ev h3{color:var(--mint)}

/* ===== 아티클(회사소개·칼럼 글) ===== */
.article{max-width:760px;margin:0 auto;padding:34px 20px 10px;color:#2a343c;font-size:15.5px;line-height:1.85}
.art-title{font-size:clamp(20px,2.6vw,26px);color:var(--ink);font-weight:900;margin:8px 0 18px;letter-spacing:-.01em}
.art-h{font-size:17px;color:var(--mint);font-weight:700;margin:26px 0 8px}
.article p{margin:0 0 16px}
.art-div{border:0;border-top:1px solid var(--line);margin:38px 0}
.art-quote{text-align:center;font-size:20px;font-weight:900;color:var(--mint);margin:22px 0 8px}
.subcta .note{color:var(--ink2);font-size:14px;margin-bottom:16px}