@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800;900&display=swap');
:root{--navy:#122a3f;--orange:#ff8a43;--ink:#192b3a;--muted:#63727e;--line:#dce3e8;--pale:#f3f6f8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;font-family:'Noto Sans KR',sans-serif;font-size:16px;line-height:1.75;color:var(--ink);word-break:keep-all}a{color:inherit;text-decoration:none}a:focus-visible,summary:focus-visible{outline:3px solid #ff8a43;outline-offset:5px}.topline{background:var(--navy);color:#dde6ee;padding:9px 6%;display:flex;justify-content:space-between;font-size:12px}header{height:88px;padding:0 6%;display:flex;align-items:center;justify-content:space-between;gap:30px;background:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid #eee}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;letter-spacing:-1px;line-height:1.3}.mark{position:relative;font:900 39px/1 sans-serif;color:var(--navy);padding-right:12px}.mark span{font:900 22px/1 sans-serif;position:absolute;right:0;top:-3px;color:var(--orange)}.brand small{display:block;font-size:11px;font-weight:400;letter-spacing:1px;margin-top:5px;color:var(--muted)}nav{display:flex;gap:40px;font-size:15px;font-weight:600}nav a:hover{color:#c55b1d}.header-contact{background:var(--navy);color:#fff;font-size:14px;padding:11px 24px}.hero{height:650px;position:relative;background:var(--navy);color:#fff;overflow:hidden}.hero-photo{position:absolute;width:100%;height:100%;object-fit:cover;object-position:center 56%}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#10293cf5 0%,#10293ce8 28%,#10293c85 59%,#10293c14 100%)}.hero-content{position:relative;padding:58px 8% 80px;max-width:1000px}.eyebrow{font-size:13px;letter-spacing:1.3px;color:#e2eaf0;display:flex;align-items:center;gap:12px}.eyebrow span{width:25px;height:3px;background:var(--orange)}h1{font-size:59px;line-height:1.27;letter-spacing:-2.5px;margin:25px 0 22px;font-weight:800}h1 em{font-style:normal;color:var(--orange)}.hero-content p{font-size:17px;color:#d0dce5;line-height:1.9}.hero-actions{display:flex;gap:12px;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;padding:15px 24px;font-size:15px;font-weight:600;transition:filter .2s}.button:hover{filter:brightness(.93)}.orange{background:var(--orange);color:#112737;font-size:20px;font-weight:800;letter-spacing:.2px}.glass{background:#10293c44;border:1px solid #c3d0da80;color:#fff}.hero-foot{position:absolute;bottom:0;left:8%;right:8%;border-top:1px solid #ffffff38;padding:19px 0;display:flex;justify-content:space-between;color:#d0dce5;font-size:11px;letter-spacing:1.4px}.photo-note{position:absolute;right:3%;bottom:85px;font-size:11px;color:#fff;text-shadow:0 1px 5px #000}.quick-services{display:grid;grid-template-columns:repeat(4,1fr);padding:0 6%;background:var(--navy);color:#fff}.quick-services a{padding:28px 20px;border-left:1px solid #ffffff20;font-size:17px;font-weight:500}.quick-services a:last-child{border-right:1px solid #ffffff20}.quick-services span{font-size:12px;color:var(--orange);margin-right:16px}.quick-services a:hover{background:#203b51}.section{padding:95px max(8%,calc((100vw - 1200px)/2))}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:48px}.section-tag{display:block;color:#a54918;font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:20px}h2{font-size:43px;font-weight:750;line-height:1.4;letter-spacing:-1.8px;margin:0}p{color:var(--muted);margin:0 0 20px}.section-heading p{margin:0 0 6px;font-size:16px}.service-list{border-top:2px solid var(--navy)}.service-list article{display:grid;grid-template-columns:1fr 1.1fr;gap:45px;border-bottom:1px solid var(--line);padding:32px 5px;scroll-margin-top:100px}.service-title{display:flex;align-items:flex-start;gap:28px}.service-title>span{color:#b45b28;font-size:15px;margin-top:8px}h3{font-size:24px;letter-spacing:-.7px;line-height:1.6;margin:0 0 15px}.service-description p{font-size:16px;margin-bottom:18px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chips span{padding:4px 12px;background:var(--pale);color:#536673;font-size:12px}.about{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;background:var(--pale);position:relative;border-top:1px solid #e8edf1}.about h2 em{font-style:normal;color:#2e6288}.about-body{padding-top:35px}.lead{font-size:23px;font-weight:600;color:var(--ink);line-height:1.6}.about-body>p:not(.lead){font-size:16px}.signature{display:flex;justify-content:space-between;border-top:1px solid #ced9e1;padding-top:22px;margin-top:32px;font-size:14px}.signature span{color:var(--muted)}.area{display:grid;grid-template-columns:1fr 1fr;gap:80px;border-bottom:1px solid var(--line)}.area p{margin-top:25px;font-size:15px}.cities{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-content:center}.cities>span{display:grid;place-items:center;background:var(--pale);font-size:23px;font-weight:600;padding:22px 10px}.cities strong{grid-column:1/-1;background:var(--navy);padding:24px;text-align:center;color:#fff;font-size:23px;letter-spacing:1px;font-weight:500}.cities p{grid-column:1/-1;text-align:center;font-size:13px;margin:3px 0 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.steps b{display:block;color:#c3642b;font:500 40px/1.5 sans-serif;padding-bottom:17px;border-bottom:1px solid var(--line);margin-bottom:22px}.steps h3{font-size:20px}.steps p{font-size:14px;line-height:1.9}.faq{margin-top:40px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 5px}summary{cursor:pointer;list-style:none;font-size:16px;font-weight:500;padding:23px 35px 23px 0;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:'+';position:absolute;right:4px;color:#b45b28;font-size:23px;top:17px}details[open] summary:after{content:'−'}details p{font-size:15px;max-width:850px;padding-bottom:8px}.contact{background:var(--orange);padding:64px 8%;display:flex;justify-content:space-between;align-items:center;gap:40px;color:var(--navy)}.contact .section-tag{color:#653515}.contact h2{font-size:36px}.big-phone{font-size:43px;letter-spacing:-1px;font-weight:800;display:block;line-height:1.5}.contact-buttons{display:flex;gap:10px;margin:18px 0 12px}.contact-buttons a{flex:1;padding:12px 20px;background:var(--navy);color:#fff;text-align:center;font-size:15px}.contact-buttons a:last-child{background:transparent;color:var(--navy);border:1px solid #122a3f88}.contact-right>span{font-size:13px;color:#533c2d}footer{background:#102335;color:#d5dfe7;padding:55px 8% 25px}.footer-main{display:grid;grid-template-columns:1fr 1.1fr .6fr;gap:40px}.footer-main .brand{color:#fff;font-size:22px}.footer-main .mark{color:#fff}.footer-main p{font-size:13px;line-height:1.9;color:#a8b9c7;margin-top:22px}.footer-main h3{font-size:14px;color:#e3eaf0;margin-bottom:15px}.footer-main>div:not(:first-child) p{margin-top:0}.footer-main>div:last-child a{font-size:15px}.map-link{font-size:13px;border-bottom:1px solid #8294a4;padding-bottom:5px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff20;margin-top:45px;padding-top:24px;font-size:11px;color:#8da1b2}.mobile-bar{display:none}@media(max-width:1000px){nav{gap:22px}.hero-content{padding-left:6%}h1{font-size:52px}.section{padding:75px 6%}.quick-services{padding:0 3%}.quick-services a{padding:23px 15px;font-size:15px}.quick-services span{margin-right:9px}.contact{padding:55px 6%}.big-phone{font-size:35px}.service-title{gap:20px}.service-title h3{font-size:22px}.area{gap:40px}}@media(max-width:720px){html{scroll-padding-top:112px}.topline{padding:7px 5%;font-size:10px}.topline>a{display:none}header{padding:15px 5% 12px;gap:13px;height:auto;flex-wrap:wrap}.brand{font-size:21px}.brand small{font-size:10px}.mark{font-size:32px}.header-contact{padding:8px 14px;font-size:12px}nav{order:3;width:100%;justify-content:space-between;gap:15px;font-size:13px}h1{font-size:43px;letter-spacing:-1.8px;margin-top:23px}.hero{height:630px}.hero-photo{object-position:62% center}.hero-shade{background:linear-gradient(90deg,#10293ce8,#10293c99),linear-gradient(0deg,#10293cd9,transparent)}.hero-content{padding:45px 6% 90px}.eyebrow{font-size:11px}.hero-content p{font-size:15px}.hero-actions{flex-wrap:wrap;gap:10px}.button{font-size:13px;padding:14px 17px}.orange{font-size:19px}.hero-foot{left:6%;right:6%;font-size:9px;letter-spacing:.5px}.hero-foot span:first-child{max-width:145px}.photo-note{right:6%;bottom:75px;font-size:10px}.quick-services{grid-template-columns:1fr 1fr;padding:0}.quick-services a{padding:18px 6%;font-size:14px;border-bottom:1px solid #ffffff20}.quick-services a:nth-child(odd){border-left:0}.quick-services span{font-size:11px}.section{padding:60px 6%}.section-heading{display:block;margin-bottom:30px}h2{font-size:33px;letter-spacing:-1.3px}.section-tag{font-size:10px;margin-bottom:17px}.section-heading p{font-size:14px;margin-top:20px}.service-list article{grid-template-columns:1fr;gap:8px;padding:26px 0}.service-title h3{font-size:22px;margin-bottom:5px}.service-title>span{font-size:13px;margin-top:6px}.service-description{padding-left:36px}.service-description p{font-size:14px}.chips span{font-size:11px;padding:4px 9px}.about{grid-template-columns:1fr;gap:22px}.about-body{padding-top:0}.lead{font-size:21px}.about-body>p:not(.lead){font-size:15px}.area{grid-template-columns:1fr;gap:25px}.area p{font-size:14px;margin-top:20px}.cities>span{font-size:19px;padding:18px 5px}.cities strong{font-size:20px;padding:18px}.cities p{font-size:12px;margin-top:2px}.steps{grid-template-columns:1fr;gap:10px}.steps article{position:relative;padding:22px 0 10px 48px;border-top:1px solid var(--line)}.steps b{position:absolute;left:0;top:21px;font-size:25px;border:0;padding:0}.steps h3{font-size:20px;margin-bottom:10px}.steps p{font-size:14px}.faq{margin-top:20px}summary{font-size:14px;padding:20px 30px 20px 0}details p{font-size:14px}.contact{display:block;padding:48px 6%}.contact h2{font-size:32px}.contact-right{margin-top:30px}.big-phone{font-size:35px}.contact-buttons a{font-size:14px}.footer-main{grid-template-columns:1fr;gap:27px}.footer-main p{margin:15px 0}.footer-main>div:last-child{display:none}.footer-bottom{flex-direction:column;gap:8px;margin-top:30px;padding-top:20px}footer{padding:40px 6% 100px}.mobile-bar{position:fixed;bottom:0;left:0;right:0;z-index:30;display:flex;background:var(--orange);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -2px 12px #0002}.mobile-bar a{width:50%;padding:16px 10px;text-align:center;font-size:15px;font-weight:600;color:var(--navy)}.mobile-bar a:first-child{background:var(--navy);color:#fff}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.experience{border-left:4px solid var(--orange);padding:0 0 0 22px;margin-bottom:30px;display:flex;flex-direction:column;gap:5px}.experience strong{font-size:52px;line-height:1.25;letter-spacing:-2px;color:var(--navy)}.experience strong span{font-size:22px;letter-spacing:-.5px;margin-left:8px}.experience>span{font-size:14px;color:var(--muted)}@media(max-width:720px){.experience strong{font-size:44px}.experience strong span{font-size:20px}}

/* Spacious desktop navigation and persistent return control. */
@media(min-width:721px){header nav{gap:clamp(48px,6vw,100px)}header nav a{padding:12px 8px;white-space:nowrap}}
.back-to-top{position:fixed;right:28px;bottom:30px;z-index:40;display:flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:var(--orange);color:var(--navy);font-size:13px;font-weight:800;letter-spacing:.5px;box-shadow:0 5px 22px #10233530;border:2px solid #ffffffcc;transition:background .2s,box-shadow .2s}
.back-to-top:hover{background:#ff9e62;box-shadow:0 7px 25px #10233545}
@media(max-width:720px){.back-to-top{right:16px;bottom:calc(80px + env(safe-area-inset-bottom));width:48px;height:48px;font-size:12px}}

/* Balanced hero contact buttons. */
.hero-scope{font-size:.72em;letter-spacing:-1.5px}.hero-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-width:520px}.hero-actions .button{width:100%;min-height:66px;padding:14px 20px;font-size:20px;font-weight:800;line-height:1.5;letter-spacing:0;white-space:nowrap;border:1px solid transparent}.hero-actions .glass{border-color:#c3d0da80}
@media(max-width:720px){.hero-actions{max-width:420px}.hero-actions .button{min-height:58px;padding:12px 8px;font-size:clamp(14px,3.8vw,18px)}.hero-scope{letter-spacing:-1px}}

/* Two-line introduction with room for the full business name. */
.hero-content{max-width:none;padding-top:76px}.hero-content h1{font-size:clamp(34px,3.8vw,56px);line-height:1.4;letter-spacing:-2px;margin:26px 0 24px}.hero-line{white-space:nowrap}.hero-area{font-size:14px;color:#e2eaf0;margin-top:20px}.hero-actions{margin-top:20px}
@media(max-width:720px){.hero-content{padding-top:48px}.hero-content h1{font-size:clamp(26px,5.5vw,39px);letter-spacing:-1.2px;line-height:1.5}.hero-area{font-size:13px}}

/* Selected navy and orange plumbing monogram. */
.brand-symbol{display:block;width:54px;height:42px;object-fit:contain;flex-shrink:0}.brand{gap:13px}@media(max-width:720px){.brand-symbol{width:44px;height:35px}.brand{gap:10px}}

.contact-email{display:inline-block;margin-top:12px;font-size:16px;overflow-wrap:anywhere}.footer-email{display:inline-block;margin-top:8px;overflow-wrap:anywhere}

.qualification{margin:28px 0;padding:22px 24px;background:#fff7ee;border-left:3px solid #ea722f;border-radius:0 10px 10px 0}.qualification-label{display:block;color:#a64b19;font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:10px}.qualification strong{display:block;color:#122a3f;font-size:19px}.about-body .qualification p{margin:8px 0 0;font-size:16px;line-height:1.7;color:#425467}@media(max-width:600px){.qualification{padding:19px 18px}.qualification strong{font-size:18px}.about-body .qualification p{font-size:15px}}