/* =========================================================================
   백두산 하수구 - 스타일 (반응형 · 고급 리디자인)
   색상/여백 등은 아래 :root 변수만 바꾸면 전체가 바뀝니다.
   ========================================================================= */

:root{
  --navy:#0a2540;          /* 딥 네이비 */
  --navy-2:#0e335e;
  --blue:#1660e6;          /* 메인 블루 */
  --blue-2:#3b82f6;
  --soft:#eef4ff;          /* 연한 블루 배경 */
  --soft-2:#f6f9ff;
  --accent:#f2590d;        /* 오렌지 (전화/CTA) - 조금 더 깊은 톤 */
  --accent-2:#ffc24b;      /* 골드 포인트 */
  --kakao:#fee700;
  --ink:#16202e;           /* 본문 */
  --muted:#64707f;         /* 흐린 글자 */
  --line:#e7ecf4;
  --bg:#ffffff;
  --radius:20px;
  --shadow-sm:0 4px 14px rgba(10,37,64,.06);
  --shadow:0 14px 40px rgba(10,37,64,.10);
  --shadow-lg:0 24px 60px rgba(10,37,64,.16);
  --wrap:1160px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  -webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
section{padding:88px 0}
.center{text-align:center}
.alt{background:linear-gradient(180deg,var(--soft-2),#fff)}

/* ---------- 스크롤 등장 효과 ---------- */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.show{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- 공통 제목 ---------- */
.sec-tag{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;
  font-size:14px;letter-spacing:2px;margin-bottom:14px}
.sec-tag::before{content:"";width:26px;height:2px;background:var(--blue);display:inline-block}
.center .sec-tag::after{content:"";width:26px;height:2px;background:var(--blue);display:inline-block}
.sec-title{font-size:38px;font-weight:900;line-height:1.25;letter-spacing:-.02em;margin-bottom:16px;word-break:keep-all}
.sec-desc{color:var(--muted);font-size:18px;margin-bottom:52px;word-break:keep-all}
@media (max-width:600px){
  section{padding:56px 0}
  .sec-title{font-size:26px}
  .sec-desc{font-size:15px;margin-bottom:34px}
}

/* ---------- 버튼 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;font-size:17px;
  padding:15px 28px;border-radius:14px;border:0;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease}
.btn:hover{transform:translateY(-3px)}
.btn-call{background:linear-gradient(135deg,#ff7d3a,var(--accent));color:#fff;box-shadow:0 8px 18px rgba(242,89,13,.26)}
.btn-call:hover{box-shadow:0 12px 26px rgba(242,89,13,.36)}
.btn-kakao{background:var(--kakao);color:#3c1e1e;box-shadow:0 8px 18px rgba(0,0,0,.10)}
.btn-blue{background:linear-gradient(135deg,var(--blue-2),var(--blue));color:#fff;box-shadow:0 10px 24px rgba(22,96,230,.34)}
.btn-lg{font-size:19px;padding:18px 36px;border-radius:16px}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.5);backdrop-filter:blur(6px)}

/* =========================================================================
   헤더 (반투명 글래스)
   ========================================================================= */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;justify-content:space-between;min-height:92px;padding:10px 0}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo img{height:80px;width:auto;max-width:100%;margin-left: 20px;
    padding-top: 8px;}
@media (max-width:480px){
  .topbar{min-height:64px;padding:8px 0}
  .logo img {height: 65px;}
  .btn {gap: -5px;}
}
.gnb{display:flex;gap:26px;align-items:center}
.gnb a{font-weight:700;color:#2a3644;font-size:16px;position:relative}
.gnb a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--blue);transition:width .25s}
.gnb a:hover{color:var(--blue)}
.gnb a:hover::after{width:100%}
.header-call{display:flex;align-items:center;gap:12px}
.header-call .num{font-weight:900;color:var(--accent);font-size:21px;letter-spacing:-.01em}
.menu-btn{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--navy)}
@media (max-width:1040px){
  .gnb{display:none}
  .menu-btn{display:block}
  .header-call .num{display:none}
  .header-call .btn-call{padding:11px 18px;font-size:15px}
}

/* =========================================================================
   히어로 (실제 작업사진 배경 + 오버레이)
   ========================================================================= */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);z-index:0}
.hero-overlay{position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg, rgba(8,25,48,.94) 0%, rgba(10,37,64,.86) 45%, rgba(18,87,214,.55) 100%)}
.hero-inner{position:relative;z-index:2;padding:118px 22px 120px}
.hero .badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3);padding:9px 18px;border-radius:999px;font-weight:700;font-size:15px;
  margin-bottom:24px;backdrop-filter:blur(6px)}
.hero h1{font-size:52px;font-weight:900;line-height:1.2;letter-spacing:-.03em;word-break:keep-all;
  text-shadow:0 2px 20px rgba(0,0,0,.25)}
.hero h1 .hl{color:var(--accent-2)}
.hero p.lead{font-size:20px;margin:22px 0 34px;opacity:.94;max-width:620px;word-break:keep-all}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:14px;margin-top:46px;flex-wrap:wrap}
.hero-stats .st{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);text-align: center;
  border-radius:16px;padding:16px 22px;backdrop-filter:blur(6px);min-width:120px}
.hero-stats .st b{display:block;font-size:28px;font-weight:900;color:var(--accent-2);letter-spacing:-.02em;text-align: center;}
.hero-stats .st span{font-size:14px;opacity:.9}
@media (max-width:600px){
  .hero-inner{padding:64px 22px 68px}
  .hero h1{font-size:32px}
  .hero p.lead{font-size:16px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:0 1 auto;width:auto;font-size:16px;padding:14px 22px}
  .hero-stats{gap:10px;margin-top:32px}
  .hero-stats .st{flex:1 1 5%;min-width:0;padding:12px 14px}
  .hero-stats .st b{font-size:22px}
}
@media (max-width:500px){
  .hero-stats .st {
    padding: 10px 5px;}
  .hero-stats .st b{font-size:19px}
  .hero-stats .st span {
    font-size: 13px;}
  .hero-stats{gap:5px;}
}

/* =========================================================================
   신뢰 배지 띠
   ========================================================================= */
.strip{margin-top:-40px;position:relative;z-index:5}
.strip .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;
  border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.strip .item{text-align:center;padding:28px 16px;border-right:1px solid var(--line);transition:background .2s}
.strip .item:last-child{border-right:0}
.strip .item:hover{background:var(--soft-2)}
.strip .item .ic{font-size:32px;margin-bottom:8px}
.strip .item b{display:block;font-size:17px;color:var(--navy);font-weight:800}
.strip .item span{font-size:13px;color:var(--muted)}
@media (max-width:700px){
  .strip{margin-top:-24px}
  .strip .grid{grid-template-columns:repeat(2,1fr)}
  .strip .item:nth-child(2){border-right:0}
  .strip .item:nth-child(1),.strip .item:nth-child(2){border-bottom:1px solid var(--line)}
}

/* =========================================================================
   서비스 카드
   ========================================================================= */
.services .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;
  text-align:center;box-shadow:var(--shadow-sm);transition:transform .22s ease, box-shadow .22s ease, border-color .22s}
.svc:hover{transform:translateY(-6px) scale(1.02);box-shadow:var(--shadow-lg);border-color:transparent}
.svc .ic{width:76px;height:76px;margin:0 auto 16px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  font-size:38px;background:linear-gradient(135deg,var(--soft),#dbe8ff)}
.svc h3{font-size:20px;font-weight:800;margin-bottom:8px}
.svc p{color:var(--muted);font-size:15px}
@media (max-width:900px){.services .grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.services .grid{grid-template-columns:1fr}}

/* =========================================================================
   실제 시공 갤러리 (사진)
   ========================================================================= */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gcard{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  aspect-ratio:4/3;transition:transform .3s ease, box-shadow .3s ease}
.gcard img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gcard figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 16px;color:#fff;
  font-weight:800;font-size:17px;text-align:left;
  background:linear-gradient(0deg, rgba(6,20,38,.82), transparent)}
.gcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.gcard:hover img{transform:scale(1.09)}
.gallery-note{margin-top:26px;color:var(--muted);font-size:14px}
@media (max-width:900px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.gallery-grid{grid-template-columns:1fr}}

/* =========================================================================
   비용 안내
   ========================================================================= */
.price .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px 26px;text-align:center;
  box-shadow:var(--shadow-sm);transition:transform .22s ease, box-shadow .22s ease;position:relative;overflow:hidden}
.pcard::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,var(--blue),var(--blue-2))}
.pcard:hover{transform:translateY(-6px) scale(1.02);box-shadow:var(--shadow-lg)}
.pcard h3{font-size:19px;font-weight:800;color:var(--navy);margin-bottom:16px;min-height:52px;
  display:flex;align-items:center;justify-content:center}
.pcard .amt{font-size:38px;font-weight:900;color:var(--accent);margin-bottom:12px;letter-spacing:-.03em}
.pcard .note{font-size:14px;color:var(--muted)}
.caution{margin-top:30px;text-align:center;color:var(--muted);font-size:15px}
@media (max-width:800px){.price .grid{grid-template-columns:1fr}}

/* =========================================================================
   프로세스 4단계
   ========================================================================= */
.process .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{text-align:center;padding:20px 14px;transition:transform .22s ease}
.step:hover{transform:translateY(-6px)}
.step .no{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--blue-2),var(--blue));
  color:#fff;font-weight:900;font-size:24px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
  box-shadow:0 10px 24px rgba(22,96,230,.32)}
.step h4{font-size:18px;font-weight:800;margin-bottom:6px}
.step p{color:var(--muted);font-size:15px}
@media (max-width:800px){.process .grid{grid-template-columns:repeat(2,1fr)}}

/* =========================================================================
   4가지 약속 (딥네이비 + 사진)
   ========================================================================= */
.promise{background:radial-gradient(1200px 500px at 80% -10%, #123a6b, var(--navy));color:#fff}
.promise .sec-title,.promise .sec-tag{color:#fff}
.promise .sec-tag::before,.promise .sec-tag::after{background:var(--accent-2)}
.promise-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:44px;align-items:center}
.promise-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.promise-photo img{width:100%;height:100%;object-fit:cover}
.promise .grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pm{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:22px;
  transition:transform .22s ease, background .22s ease}
.pm:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
.pm .ic{font-size:30px;margin-bottom:10px}
.pm h4{font-size:18px;font-weight:800;margin-bottom:6px;color:var(--accent-2)}
.pm p{opacity:.9;font-size:14px}
@media (max-width:900px){.promise-wrap{grid-template-columns:1fr;gap:28px}}
@media (max-width:520px){.promise .grid{grid-template-columns:1fr}}

/* =========================================================================
   후기 미리보기
   ========================================================================= */
.reviews .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.rv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);
  text-align:left;transition:transform .22s ease, box-shadow .22s ease}
.rv:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.rv .stars{color:var(--accent-2);font-size:19px;margin-bottom:12px}
.rv .txt{font-size:15px;margin-bottom:16px;word-break:keep-all;color:#37424f}
.rv .who{font-size:14px;color:var(--muted);font-weight:700}
@media (max-width:900px){.reviews .grid{grid-template-columns:1fr}}

/* =========================================================================
   상담 신청
   ========================================================================= */
.consult{background:radial-gradient(1000px 400px at 20% 0%, var(--blue), var(--navy));color:#fff}
.consult .sec-title,.consult .sec-tag{color:#fff}
.consult .sec-tag::before,.consult .sec-tag::after{background:var(--accent-2)}
.form-card{background:#fff;color:var(--ink);border-radius:24px;padding:40px;max-width:700px;margin:0 auto;box-shadow:var(--shadow-lg);text-align:left}
.field{margin-bottom:20px}
.field label{display:block;font-weight:700;margin-bottom:9px;font-size:15px}
.field input,.field textarea,.field select{width:100%;padding:15px;border:1.5px solid var(--line);
  border-radius:12px;font-size:16px;font-family:inherit;background:#fbfcfe;transition:border-color .18s, box-shadow .18s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(22,96,230,.12);background:#fff}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips label{display:inline-flex;align-items:center;gap:6px;background:var(--soft);
  padding:10px 16px;border-radius:999px;font-weight:600;font-size:14px;cursor:pointer;margin:0;transition:background .18s}
.chips label:hover{background:#dbe8ff}
.chips input{width:auto}
.form-card .btn{width:70%;display:block;margin:6px auto 0}
.form-note{text-align:center;color:var(--muted);font-size:13px;margin-top:14px}

/* =========================================================================
   푸터
   ========================================================================= */
footer{background:#071a30;color:#aeb9c8;padding:56px 0 120px;font-size:15px}
footer .flog{font-size:24px;font-weight:900;color:#fff;margin-bottom:16px;letter-spacing:-.02em}
footer .frow{margin-bottom:7px}
footer .frow b{color:#fff}
footer .copy{margin-top:22px;color:#5a6a7d;font-size:13px}
@media (min-width:901px){footer{padding-bottom:56px}}

/* =========================================================================
   모바일 하단 고정바
   ========================================================================= */
.mobilebar{position:fixed;left:0;right:0;bottom:0;z-index:200;display:none;
  grid-template-columns:1fr 1fr 1fr;background:#fff;box-shadow:0 -6px 24px rgba(0,0,0,.14)}
.mobilebar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:12px 0;font-weight:800;font-size:13px}
.mobilebar .ic{font-size:20px}
.mobilebar .mb-call{color:var(--accent)}
.mobilebar .mb-kakao{color:#3a1d1d;background:var(--kakao)}
.mobilebar .mb-form{color:#fff;background:linear-gradient(135deg,var(--blue-2),var(--blue))}
@media (max-width:900px){.mobilebar{display:grid}}

/* 데스크톱 플로팅 */
.floating{position:fixed;right:22px;bottom:26px;z-index:200;display:flex;flex-direction:column;gap:12px}
.floating a{width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:26px;box-shadow:var(--shadow);transition:transform .18s}
.floating a:hover{transform:scale(1.1)}
.floating .f-call{background:linear-gradient(135deg,#ff7d3a,var(--accent));color:#fff}
.floating .f-kakao{background:var(--kakao)}
.floating .f-top{background:#fff;border:1px solid var(--line);color:var(--navy);font-size:22px}
@media (max-width:900px){.floating{display:none}}

/* =========================================================================
   고객후기 페이지
   ========================================================================= */
.page-head{position:relative;color:#fff;padding:72px 0;text-align:center;overflow:hidden;isolation:isolate}
.page-head::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(900px 400px at 50% -20%, var(--blue), var(--navy))}
.page-head h1{font-size:40px;font-weight:900;letter-spacing:-.02em}
.page-head p{opacity:.9;margin-top:10px}
@media (max-width:600px){.page-head{padding:52px 0}.page-head h1{font-size:28px}}

.review-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:34px;align-items:start}
@media (max-width:860px){.review-layout{grid-template-columns:1fr}}
.review-solo{max-width:760px;margin:0 auto}
.review-solo .review-list{gap:18px}
.write-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);position:sticky;top:112px}
@media (max-width:860px){.write-card{position:static}}
.write-card h2{font-size:21px;font-weight:800;margin-bottom:6px}
.write-card .sub{color:var(--muted);font-size:14px;margin-bottom:20px}
.star-input{font-size:36px;color:#d7dbe2;cursor:pointer;user-select:none;letter-spacing:3px}
.star-input .on{color:var(--accent-2)}
.review-list{display:flex;flex-direction:column;gap:18px}
.ritem{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease, box-shadow .2s}
.ritem:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.ritem .top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;flex-wrap:wrap;gap:6px}
.ritem .name{font-weight:800}
.ritem .region{color:var(--muted);font-size:14px;font-weight:600}
.ritem .date{color:var(--muted);font-size:13px}
.ritem .rstars{color:var(--accent-2);font-size:18px;margin-bottom:8px}
.ritem .rtext{font-size:15px;word-break:keep-all;white-space:pre-wrap;color:#37424f}
.ritem img.rphoto{margin-top:14px;border-radius:12px;max-height:300px;object-fit:cover}
.ritem .manage{margin-left:auto;display:flex;gap:6px}
.ritem .manage button{background:none;border:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:700;
  padding:5px 10px;border-radius:8px;cursor:pointer;transition:.15s}
.ritem .manage button:hover{background:var(--soft);color:var(--blue);border-color:var(--blue)}
.ritem .edit-box{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.ritem .edit-box textarea{width:100%;padding:10px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit}
.ritem .edit-box .row{display:flex;gap:8px;margin-top:8px}
.ritem .edit-box .row button{font-size:13px;font-weight:700;padding:8px 14px;border-radius:8px;border:0;cursor:pointer}
.ritem .edit-box .save{background:var(--blue);color:#fff}
.ritem .edit-box .cancel{background:var(--line);color:#444}
.empty{color:var(--muted);text-align:center;padding:44px 0}
.notice{background:#fff7e6;border:1px solid #ffe0a3;color:#8a6d3b;padding:13px 16px;border-radius:12px;font-size:14px;margin-bottom:18px}
.hp{position:absolute;left:-9999px}

/* ---------- 모바일 메뉴 (드로어) ---------- */
.drawer{position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.45);display:none}
.drawer.open{display:block}
.drawer .panel{position:absolute;right:0;top:0;bottom:0;width:76%;max-width:310px;background:#fff;padding:26px;
  box-shadow:-10px 0 40px rgba(0,0,0,.2)}
.drawer .panel a{display:block;padding:17px 4px;font-size:18px;font-weight:700;border-bottom:1px solid var(--line)}
.drawer .close{float:right;font-size:30px;background:none;border:0;cursor:pointer;color:var(--navy)}