/* ============================================================
   WISNET 홈페이지 — 공개 사이트 스타일
   색상 테마: 딥 네이비 + 사이안(LoRa 신호/디지털/AI 느낌)
   ============================================================ */
:root{
  --navy:#0b1220; --navy2:#0f1b2e; --ink:#1f2937; --ink2:#334155;
  --cyan:#22d3ee; --blue:#0ea5e9; --teal:#2dd4bf;
  --line:#e5e9f0; --bg:#ffffff; --soft:#f5f8fc; --muted:#64748b;
  --grad:linear-gradient(120deg,#0ea5e9,#22d3ee 55%,#2dd4bf);
  --maxw:1160px; --radius:16px;
  --shadow:0 10px 30px rgba(15,27,46,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans KR",system-ui,"Malgun Gothic",sans-serif;color:var(--ink);
  line-height:1.7;background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.center{text-align:center;margin-top:28px}

/* ── 로그인 / 회원가입 (밝고 깔끔한 카드형) ── */
.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:#eef2f7;font-family:"Noto Sans KR",system-ui,sans-serif}
.auth-card{background:#fff;border-radius:18px;padding:46px 40px;width:100%;max-width:440px;
  box-shadow:0 12px 44px rgba(15,23,42,.10);text-align:center}
.auth-logo{height:40px;width:auto;margin:0 auto 20px;display:block}
.auth-title{font-size:1.55rem;font-weight:800;color:#1e293b;letter-spacing:-.5px;line-height:1.3}
.auth-title b{color:#2563eb;font-weight:800}
.auth-sub{color:#94a3b8;font-size:.95rem;margin:10px 0 30px}
.auth-form{text-align:left}
.auth-field{margin-bottom:18px}
.auth-field label{display:block;font-size:.9rem;font-weight:700;color:#334155;margin-bottom:8px}
.auth-field input{width:100%;padding:14px 16px;border:1px solid #e2e8f0;border-radius:11px;font:inherit;
  background:#fff;transition:.15s}
.auth-field input::placeholder{color:#cbd5e1}
.auth-field input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 4px rgba(37,99,235,.13)}
.auth-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.auth-btn{width:100%;margin-top:8px;padding:15px;border:none;border-radius:11px;background:#2563eb;
  color:#fff;font-weight:800;font-size:1.02rem;cursor:pointer;transition:.18s}
.auth-btn:hover{background:#1d4ed8}
.auth-foot{margin-top:24px;text-align:center;color:#94a3b8;font-size:.93rem}
.auth-foot a{color:#2563eb;font-weight:700}
.auth-card .alert{padding:13px 15px;border-radius:10px;margin-bottom:20px;font-size:.9rem;text-align:left}
.auth-card .alert.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.auth-req{color:#ef4444}
@media (max-width:480px){ .auth-row{grid-template-columns:1fr} .auth-card{padding:38px 26px} }

/* ── 헤더 ── */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;color:#fff}
/* 안1: 흰색 단색 로고를 어두운 헤더에 박스 없이 그대로 */
.brand-logo{height:34px;width:auto;display:block}
.nav-menu{display:flex;gap:6px;list-style:none}
.nav-menu a{color:#cbd5e1;font-size:.93rem;font-weight:500;padding:8px 13px;border-radius:9px;transition:.2s}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08)}
/* 현재 보고 있는 메뉴 — 배경이 밝은 청록이라 글씨는 어둡게.
   색상값 #04222e 는 '사업분야 보기'(.btn-primary) 글씨와 동일 */
.nav-menu a.on{color:#04222e;background:var(--grad)}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer}
.nav-user{display:flex;align-items:center;gap:8px;margin-left:6px;padding-left:12px;border-left:1px solid rgba(255,255,255,.15)}
.nav-user span{color:var(--cyan);font-size:.85rem;font-weight:600}
.nav-user a{color:#cbd5e1;font-size:.82rem;background:rgba(255,255,255,.08);padding:6px 12px;border-radius:8px}
.nav-user a:hover{background:rgba(255,255,255,.16);color:#fff}

/* ── 버튼 ── */
.btn{display:inline-block;padding:13px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:none;cursor:pointer;transition:.2s;text-align:center}
.btn-primary{background:var(--grad);color:#04222e;box-shadow:0 8px 22px rgba(34,211,238,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(34,211,238,.42)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-sm{padding:7px 15px;font-size:.82rem;border-radius:8px;background:var(--soft);color:var(--ink2);border:1px solid var(--line)}
.btn-sm:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ── 히어로 ── */
.hero{position:relative;background:radial-gradient(1200px 600px at 70% -10%,#13314f 0%,var(--navy) 55%);
  color:#fff;overflow:hidden}
/* 메인 배경 사진 (설정 hero_bg_image 가 있을 때만 표시).
   위에 어두운 그라디언트를 덮어 왼쪽 제목 글씨의 가독성을 확보 */
.hero-photo{position:absolute;inset:0;background-size:cover;background-position:center;
  pointer-events:none}
.hero-photo::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(11,18,32,.93) 0%,rgba(11,18,32,.78) 42%,rgba(11,18,32,.42) 100%),
  linear-gradient(180deg,rgba(11,18,32,.55) 0%,rgba(11,18,32,0) 35%,rgba(11,18,32,.65) 100%)}
.hero-bg{position:absolute;inset:0;background-image:
  radial-gradient(circle at 20% 30%,rgba(34,211,238,.12),transparent 40%),
  radial-gradient(circle at 85% 70%,rgba(45,212,191,.10),transparent 40%);
  pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:84px 20px 92px}
.badge{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:1.5px;color:var(--cyan);
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.35);padding:7px 14px;border-radius:999px}
.hero-title{font-size:2.9rem;line-height:1.22;margin:22px 0 18px;font-weight:900;letter-spacing:-.5px}
.hero-sub{color:#b6c6da;font-size:1.07rem;max-width:540px;white-space:pre-line}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-visual{display:flex;justify-content:center}
.net-svg{width:100%;max-width:360px}
.net-svg .nodes circle{filter:drop-shadow(0 0 6px rgba(34,211,238,.8))}
.ring{transform-origin:160px 160px;animation:spin 22s linear infinite}
.ring.r2{animation-duration:30s;animation-direction:reverse}
.ring.r3{animation-duration:40s}
.ring.r4{animation-duration:52s;animation-direction:reverse}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── 섹션 공통 ── */
.section{padding:78px 0}
.section-soft{background:var(--soft)}
.section-dark{background:linear-gradient(180deg,var(--navy2),var(--navy));color:#fff}
.section-head{text-align:center;max-width:820px;margin:0 auto 46px}
.section-head.left{text-align:left;margin-left:0}
.section-head.row{display:flex;justify-content:space-between;align-items:flex-end;text-align:left;max-width:none}
.section-head h2{font-size:2rem;font-weight:800;letter-spacing:-.5px}
.section-head h2::after{content:"";display:block;width:54px;height:4px;background:var(--grad);border-radius:2px;margin:14px auto 0}
.section-head.left h2::after,.section-head.row h2::after{margin-left:0}
.section-head p{color:var(--muted);margin-top:14px}
.section-dark .section-head p{color:#9fb2c8}
.more{color:var(--blue);font-weight:600;font-size:.9rem}

/* ── 카드 그리드(사업분야) ── */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  transition:.25s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-5px);border-color:var(--cyan)}
.card-icon{width:58px;height:58px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#e0f5fb,#e8fbf6);color:var(--blue);margin-bottom:18px}
.card-icon svg{width:30px;height:30px}
.card h3{font-size:1.18rem;margin-bottom:9px}
.card p{color:var(--muted);font-size:.95rem}
/* 클릭 가능한 사업분야 카드 — 카드 전체가 상세 페이지 링크 */
.card-link{display:flex;flex-direction:column;color:inherit}
.card-link p{flex:1}
.card-more{display:block;margin-top:16px;font-size:.88rem;font-weight:700;color:var(--blue);
  opacity:.75;transition:.2s}
.card-link:hover .card-more{opacity:1}

/* ── 타임라인(비전) ── */
.vision .timeline{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:880px;margin:0 auto}
.tl-item{background:rgba(255,255,255,.04);border:1px solid rgba(34,211,238,.22);border-radius:var(--radius);padding:30px}
.tl-year{font-family:"Orbitron",sans-serif;font-size:1.5rem;font-weight:800;color:var(--cyan)}
.tl-item h3{margin:10px 0 8px;font-size:1.18rem}
.tl-item p{color:#9fb2c8;font-size:.95rem}

/* ── 공지 리스트 ── */
.news-list{list-style:none;border-top:2px solid var(--ink)}
.news-list li a{display:flex;align-items:center;gap:14px;padding:16px 6px;border-bottom:1px solid var(--line)}
.news-list li a:hover{background:var(--soft)}
.news-title{flex:1;font-weight:500}
.news-date{color:var(--muted);font-size:.86rem}
.tag{font-size:.74rem;font-weight:700;color:var(--blue);background:#e7f5fb;padding:3px 10px;border-radius:6px;white-space:nowrap}
.news-list .empty,.board-table .empty{color:var(--muted);padding:24px;text-align:center}

/* ── CTA 밴드 ── */
.cta-band{background:var(--grad);color:#04222e}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:46px 20px;flex-wrap:wrap}
.cta-inner h2{font-size:1.7rem;font-weight:800}
.cta-inner p{margin-top:6px;opacity:.85}

/* ── 페이지 히어로(서브) ── */
.page-hero{background:radial-gradient(900px 400px at 80% -30%,#173a5a,var(--navy));color:#fff;padding:64px 0 56px}
.page-hero h1{font-size:2.3rem;font-weight:800}
.page-hero p{color:#a9bdd4;margin-top:10px}

/* ── 인사말/본문 ── */
.greeting-quote{font-size:1.5rem;font-weight:700;color:var(--ink);border-left:4px solid var(--cyan);
  padding:6px 0 6px 20px;margin-bottom:24px;line-height:1.5}
.prose p{margin-bottom:16px;color:var(--ink2)}
.greeting-sign{margin-top:24px;font-weight:700;color:var(--ink)}

/* ── 정보 테이블 ── */
/* 연혁 — 왼쪽 연도 + 세로선 + 내용. 같은 해가 이어지면 연도를 생략(.same-year) */
.history{list-style:none;position:relative}
.history-row{display:grid;grid-template-columns:96px 1fr;gap:18px;position:relative;
  padding:0 0 22px 0}
.history-row::before{content:"";position:absolute;left:103px;top:11px;bottom:-11px;
  width:2px;background:var(--line)}
.history-row:last-child::before{display:none}
.history-row::after{content:"";position:absolute;left:98px;top:8px;width:12px;height:12px;
  border-radius:50%;background:var(--bg);border:3px solid var(--cyan)}
.history-row.same-year::after{width:8px;height:8px;left:100px;top:10px;
  background:var(--line);border-color:var(--line)}
.history-year{font-family:"Orbitron",sans-serif;font-weight:800;font-size:1.05rem;
  color:var(--blue);text-align:right;line-height:1.6}
.history-text{color:var(--ink2);font-size:.97rem;line-height:1.6;padding-left:18px}
@media(max-width:560px){
  .history-row{grid-template-columns:64px 1fr;gap:10px}
  .history-row::before{left:71px}
  .history-row::after{left:66px}
  .history-row.same-year::after{left:68px}
  .history-year{font-size:.92rem}
  .history-text{padding-left:14px;font-size:.92rem}
}
.info-table{width:100%;border-collapse:collapse;border-top:2px solid var(--ink)}
.info-table th,.info-table td{text-align:left;padding:15px 16px;border-bottom:1px solid var(--line);font-size:.96rem}
.info-table th{width:140px;background:var(--soft);color:var(--ink);font-weight:700}

/* ── 연락처 카드 ── */
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:6px}
.contact-card .role{font-size:.8rem;color:var(--blue);font-weight:700}
.contact-card .who{font-size:1.35rem;margin-bottom:6px}
.contact-card a{color:var(--ink2);font-size:.96rem}
.contact-card a:hover{color:var(--blue)}

/* ── 제품 ── */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.prod-card:hover{transform:translateY(-5px)}
.prod-thumb{height:160px;background:#0f1b2e;position:relative;
  background-image:radial-gradient(circle at 30% 30%,rgba(34,211,238,.4),transparent 50%),
  radial-gradient(circle at 75% 70%,rgba(45,212,191,.35),transparent 50%)}
.thumb-gateway::after,.thumb-modem::after,.thumb-sensor::after,.thumb-wireless::after,.thumb-ai::after,.thumb-server::after{
  content:"";position:absolute;inset:0;background-repeat:no-repeat;background-position:center;background-size:64px;opacity:.85}
.prod-thumb-photos{display:flex;align-items:center;justify-content:center;gap:9px;padding:12px}
.prod-thumb-photos img{height:100%;width:auto;max-width:31%;object-fit:contain;
  filter:drop-shadow(0 4px 9px rgba(0,0,0,.4))}
/* 사진이 1장뿐인 카드는 좁게 잘리지 않도록 넓게 (가로로 긴 관제화면 캡처 대응) */
.prod-thumb-photos img:only-of-type{max-width:88%}
/* 이미지 박스 클릭 → 제품 상세 */
a.prod-thumb{display:flex;position:relative;text-decoration:none;cursor:pointer}
.prod-thumb-more{position:absolute;left:0;right:0;bottom:0;padding:20px 12px 8px;text-align:right;
  font-size:.78rem;font-weight:700;color:#d7eefc;letter-spacing:.2px;
  background:linear-gradient(transparent,rgba(3,12,26,.72));opacity:0;transition:opacity .22s;z-index:2}
a.prod-thumb:hover .prod-thumb-more{opacity:1}

/* ── 제품 상세 페이지 ── */
.pd-crumb{font-size:.85rem;opacity:.8;margin-bottom:10px}
.pd-crumb a{color:inherit;text-decoration:underline}
.pd-lineup{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pd-lineup figure{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#0f1b2e;
  background-image:radial-gradient(circle at 30% 25%,rgba(34,211,238,.35),transparent 55%)}
.pd-lineup img{display:block;width:100%;height:210px;object-fit:contain;padding:16px;cursor:zoom-in;
  filter:drop-shadow(0 6px 12px rgba(0,0,0,.45))}
.pd-lineup figcaption{background:#fff;border-top:1px solid var(--line);padding:14px 16px}
.pd-lineup figcaption strong{display:block;font-size:.98rem}
.pd-lineup figcaption span{display:block;color:var(--muted);font-size:.85rem;margin-top:3px}
.pd-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pd-stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;
  box-shadow:var(--shadow)}
.pd-stat b{display:block;font-size:1.45rem;font-weight:900;color:var(--blue);line-height:1.2}
.pd-stat span{display:block;color:var(--muted);font-size:.88rem;margin-top:8px}
.pd-tech{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pd-tech article{border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;background:#fff;
  box-shadow:var(--shadow)}
.pd-tech h3{font-size:1.05rem;margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--line)}
.pd-tech p{font-size:.9rem;line-height:1.6;margin-bottom:12px;color:var(--ink2)}
.pd-tech p span{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 9px;border-radius:999px;
  margin-right:7px;vertical-align:1px}
.pd-limit span{color:#b45309;background:#fef3c7}
.pd-solve span{color:#0369a1;background:#e0f2fe}
.pd-result span{color:#047857;background:#d1fae5}
.pd-sub{font-size:1.06rem;font-weight:800;color:var(--navy);margin:30px 0 12px;padding-left:12px;
  border-left:4px solid var(--cyan)}
.prose .pd-sub:first-child{margin-top:0}
.draft-badge{display:inline-block;font-size:.8rem;font-weight:700;color:#b45309;background:#fef3c7;
  border:1px dashed #f59e0b;border-radius:8px;padding:7px 14px;margin-bottom:16px}
.pd-notice{text-align:center;color:var(--muted);background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:44px 24px;font-size:.98rem}
.pd-clients{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.pd-clients span{font-size:.85rem;font-weight:600;color:var(--ink2);background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:8px 16px}
.spec-table caption{caption-side:top;text-align:left;font-weight:700;font-size:.95rem;
  color:var(--ink);padding-bottom:10px}
.pd-table-wrap{overflow-x:auto}
.spec-table{width:100%;border-collapse:collapse;border-top:2px solid var(--ink);background:#fff;min-width:560px}
.spec-table th,.spec-table td{padding:14px 16px;border-bottom:1px solid var(--line);font-size:.92rem;text-align:left}
.spec-table thead th{background:var(--soft);font-weight:700;white-space:nowrap}
.spec-table tbody td:first-child{font-weight:700;color:var(--ink)}
.spec-table strong{color:var(--blue)}
.pd-cta{text-align:center}
.pd-cta h2{font-size:1.5rem;margin-bottom:10px}
.pd-cta p{color:var(--muted);margin-bottom:22px}
/* 새 글 표시 — 제목 글씨의 60% 크기(0.6em), 붉은 계열.
   등록 후 NEW_BADGE_DAYS(main.py, 기본 7일)가 지나면 자동으로 사라짐 */
.badge-new{display:inline-block;margin-left:7px;padding:1px 6px;border-radius:4px;
  font-size:.6em;font-weight:800;line-height:1.5;letter-spacing:.04em;vertical-align:middle;
  color:#fff;background:#e11d48;font-family:Inter,system-ui,sans-serif}
.pd-cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
/* 관제 화면 캡처 그리드 (제품 상세) — 가로로 넓은 스크린샷용 2단 배치 */
.pd-shots{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pd-shots figure{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.pd-shots img{display:block;width:100%;height:auto;cursor:zoom-in;background:#0f1b2e}
.pd-shots figcaption{border-top:1px solid var(--line);padding:14px 16px}
.pd-shots figcaption strong{display:block;font-size:.98rem}
.pd-shots figcaption span{display:block;color:var(--muted);font-size:.85rem;margin-top:3px}
@media(max-width:900px){.pd-lineup,.pd-stats,.pd-tech,.pd-shots{grid-template-columns:1fr}}
.prod-card h3{padding:18px 20px 4px;font-size:1.12rem}
.prod-card p{padding:0 20px 22px;color:var(--muted);font-size:.92rem}

/* ── 파일/자료 리스트 ── */
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.filter-tabs a{padding:8px 18px;border-radius:999px;background:var(--soft);color:var(--ink2);font-size:.9rem;font-weight:500;border:1px solid var(--line)}
.filter-tabs a.on{background:var(--grad);color:#04222e;border-color:transparent}
.file-list{list-style:none;border-top:2px solid var(--ink)}
.file-list li{display:flex;align-items:center;gap:14px;padding:16px 6px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.file-title{font-weight:600}
.file-desc{color:var(--muted);font-size:.88rem}
.file-date{color:var(--muted);font-size:.84rem;margin-left:auto}
.file-list .model-head{display:block;font-weight:800;color:var(--navy);background:linear-gradient(90deg,#e7f5fb,transparent);
  padding:12px 12px;margin-top:10px;border-left:4px solid var(--cyan);border-bottom:none;font-size:1.02rem}
/* 회사 인증·자료 대표 썸네일 (자료명 왼쪽) — 네이버 카페처럼 작게 살짝 미리보기 */
.res-thumb{flex:0 0 auto;width:22px;height:22px;object-fit:cover;border-radius:3px;
  border:1px solid var(--line);background:#fff;vertical-align:middle}
img.res-thumb{cursor:zoom-in}
.res-thumb-empty{display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--muted);background:var(--soft)}
.res-row-thumbed .file-title{font-weight:700}
/* 자료실 탭 */
.res-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px;border-bottom:2px solid var(--line)}
.res-tab{background:none;border:none;padding:13px 22px;font:inherit;font-weight:700;color:var(--muted);cursor:pointer;
  border-bottom:3px solid transparent;margin-bottom:-2px}
.res-tab.on{color:var(--blue);border-bottom-color:var(--blue)}
.res-tab:hover{color:var(--ink)}
/* 아코디언 */
.acc-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.acc-head{width:100%;display:flex;align-items:center;gap:14px;padding:18px 22px;background:none;border:none;
  font:inherit;cursor:pointer;text-align:left}
.acc-item.open .acc-head{background:linear-gradient(90deg,#e7f5fb,#fff)}
.acc-title{flex:1;font-size:1.15rem;font-weight:800;color:var(--navy)}
.acc-count{font-size:.82rem;color:var(--blue);background:#e7f5fb;padding:3px 11px;border-radius:999px;font-weight:700}
.acc-arrow{font-size:1.1rem;color:var(--muted);transition:transform .25s}
.acc-item.open .acc-arrow{transform:rotate(180deg)}
.acc-body{display:none;padding:0 22px 10px}
.acc-item.open .acc-body{display:block}
.file-list .code-head{display:block;font-weight:700;color:var(--blue);padding:12px 2px 6px;border-bottom:none;font-size:.95rem}
.file-list .code-head::before{content:"▸ "}
/* 자료 검색 */
.res-search{margin:0 0 20px;position:relative}
.res-search input{width:100%;max-width:420px;padding:12px 16px;border:1px solid var(--line);border-radius:999px;font:inherit;
  background:var(--soft)}
.res-search input:focus{outline:none;border-color:var(--cyan);background:#fff;box-shadow:0 0 0 3px rgba(34,211,238,.13)}
.res-search-empty{display:inline-block;margin-left:14px;color:var(--muted);font-size:.9rem}
.file-meta{font-size:.78rem;color:var(--muted);background:var(--soft);border:1px solid var(--line);
  padding:2px 8px;border-radius:6px;white-space:nowrap}
/* 카탈로그 이미지 */
.catalog-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.catalog-chip{padding:9px 18px;border-radius:999px;background:var(--soft);border:1px solid var(--line);
  font-weight:600;font-size:.9rem;color:var(--ink2)}
.catalog-chip:hover{background:var(--grad);color:#04222e;border-color:transparent}
.catalog-block{margin-bottom:40px;scroll-margin-top:90px}
.catalog-title{font-size:1.2rem;font-weight:800;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--line)}
.catalog-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.catalog-pages img{width:100%;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}
/* 카탈로그 e-Book (페이지 넘김) */
.catalog-chip{cursor:pointer}
.catalog-chip.on{background:var(--grad);color:#04222e;border-color:transparent}
.catalog-view.hidden{display:none}
.catalog-spread{display:flex;justify-content:center;align-items:flex-start;gap:0;flex-wrap:wrap}
.catalog-spread img{width:100%;max-width:440px;border:1px solid var(--line);box-shadow:var(--shadow);
  cursor:zoom-in}
.catalog-spread img:first-child{border-radius:8px 0 0 8px;border-right:none}
.catalog-spread img:last-child{border-radius:0 8px 8px 0}
@media(max-width:560px){.catalog-spread img{max-width:100%;border-radius:8px!important;border:1px solid var(--line)!important}}
.ebook-stage{display:flex;align-items:center;justify-content:center;gap:10px}
.ebook{flex:1 1 auto;max-width:1100px;margin:0 auto}
.ebook .stf__parent{margin:0 auto;box-shadow:0 12px 40px rgba(15,40,80,.22)}
.ebook-arrow{flex:0 0 auto;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--blue);font-size:1.7rem;line-height:1;cursor:pointer;
  box-shadow:0 2px 8px rgba(15,40,80,.15);transition:background .15s,color .15s}
.ebook-arrow:hover{background:var(--blue);color:#fff}
.ebook-controls{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:18px}
.ebook-counter{font-weight:700;color:var(--ink2);min-width:72px;text-align:center}
.ebook-hint{text-align:center;color:var(--muted);font-size:.84rem;margin-top:8px}
@media(max-width:560px){.ebook-arrow{display:none}}
.tag-인증서{color:#7c3aed;background:#f3e8ff}
.tag-제품인증{color:#0369a1;background:#e0f2fe}
.tag-제품자료{color:#047857;background:#d1fae5}
.tag-카탈로그{color:#b45309;background:#fef3c7}
.empty-box,.note-box{background:var(--soft);border:1px dashed var(--line);border-radius:12px;padding:22px;color:var(--muted);text-align:center;margin-top:24px}
.note-box{text-align:left;font-size:.88rem}

/* ── 인증 갤러리 ── */
.cert-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.cert-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center;box-shadow:var(--shadow);transition:.2s}
.cert-item:hover{transform:translateY(-4px);border-color:var(--cyan)}
.cert-item img{width:100%;height:200px;object-fit:contain;border-radius:6px;background:#f8fafc}
.cert-item figcaption{margin-top:10px;font-size:.86rem;font-weight:600;color:var(--ink2);word-break:keep-all}

/* ── 게시판 ── */
.board-table{width:100%;border-collapse:collapse;border-top:2px solid var(--ink)}
.board-table th,.board-table td{padding:14px 12px;border-bottom:1px solid var(--line);font-size:.93rem;text-align:left}
.board-table thead th{background:var(--soft);font-weight:700}
.board-table .c-num{width:64px;text-align:center}
.board-table .c-cat{width:90px}.board-table .c-date{width:120px;color:var(--muted)}
.board-table .c-title a:hover{color:var(--blue)}

/* ── 게시글 상세 ── */
.post-head{border-bottom:2px solid var(--ink);padding-bottom:18px;margin-bottom:24px}
.post-head h1{font-size:1.7rem;margin:12px 0 8px}
.post-meta{color:var(--muted);font-size:.88rem}
.post-img{width:100%;max-width:760px;margin:16px auto;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}
.post-foot{margin-top:34px;display:flex;gap:10px;justify-content:space-between}

/* ── 문의 ── */
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px}
.contact-info h2,.contact-form-wrap h2{font-size:1.4rem;margin-bottom:calc(18px + 2mm)}
.addr{font-weight:600;margin-bottom:16px;white-space:pre-line}
.contact-lines{list-style:none;margin-bottom:20px}
.contact-lines li{padding:9px 0;border-bottom:1px solid var(--line);font-size:.95rem}
.contact-lines li span{display:inline-block;width:60px;color:var(--blue);font-weight:700}
/* 오시는길 지도 미리보기 (클릭 시 네이버 지도) */
.map-preview{display:block;position:relative;margin-top:18px;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);line-height:0}
.map-preview img{width:100%;height:auto;display:block;transition:transform .35s}
.map-preview:hover img{transform:scale(1.04)}
.map-preview-cta{position:absolute;left:0;right:0;bottom:0;line-height:1.4;text-align:right;
  padding:24px 14px 11px;font-weight:700;font-size:.92rem;color:#fff;
  background:linear-gradient(transparent,rgba(8,20,40,.62))}
.form label{display:block;margin-bottom:14px;font-weight:600;font-size:.9rem}
.form-actions{text-align:right;margin-top:4px}
.form input,.form textarea,.form select{width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font:inherit;font-weight:400;background:#fff}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.req{color:#ef4444}
.alert{padding:14px 16px;border-radius:10px;margin-bottom:18px;font-size:.92rem}
.alert.ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}
.alert.info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}
.alert.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}

/* ── 푸터 ── */
.site-footer{background:var(--navy);color:#94a3b8;padding:48px 0 24px}
.footer-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{font-family:"Inter",Arial,Helvetica,"Liberation Sans","Noto Sans KR",sans-serif;font-weight:640;
  color:#fff;font-size:1.15rem;letter-spacing:.3px;margin-bottom:12px}
.footer-addr,.footer-contact{font-size:.88rem;margin-top:4px}
.footer-contact a{color:var(--cyan)}
.footer-nav{display:flex;gap:18px;flex-wrap:wrap;align-items:flex-start}
.footer-nav a{font-size:.88rem}.footer-nav a:hover{color:#fff}
.footer-copy{text-align:center;font-size:.82rem;padding-top:22px;color:#64748b}

/* 맨 위로 버튼 */
#to-top{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;
  background:var(--grad);color:#04222e;font-size:1.4rem;font-weight:800;box-shadow:0 8px 22px rgba(34,211,238,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:60}
#to-top.show{opacity:1;visibility:visible;transform:none}
#to-top:hover{filter:brightness(1.08)}

/* 라이트박스 (이미지 확대) */
.lightbox{position:fixed;inset:0;background:rgba(4,10,20,.92);z-index:100;display:flex;align-items:center;justify-content:center;
  padding:30px;cursor:zoom-out}
.lightbox[hidden]{display:none}
.lightbox img{max-width:96%;max-height:92vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:18px;right:26px;color:#fff;font-size:2.4rem;line-height:1;cursor:pointer}

/* ════════ 반응형 (모바일/태블릿) ════════ */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-sub{margin:0 auto}.hero-actions{justify-content:center}
  .hero-visual{order:-1}.net-svg{max-width:260px}
  .card-grid,.prod-grid{grid-template-columns:1fr 1fr}
  .contact-layout{grid-template-columns:1fr}
  .vision .timeline{grid-template-columns:1fr}
}
@media (max-width:680px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:66px;left:0;right:0}
  .nav-menu{display:none;flex-direction:column;gap:2px;background:var(--navy2);
    padding:12px;border-top:1px solid rgba(255,255,255,.08)}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px}
  .hero-title{font-size:2.1rem}
  .section{padding:54px 0}
  .section-head h2,.page-hero h1{font-size:1.65rem}
  .card-grid,.prod-grid,.contact-cards{grid-template-columns:1fr}
  .cert-gallery{grid-template-columns:repeat(2,1fr);gap:12px}
  .cert-item img{height:150px}
  .catalog-pages{grid-template-columns:1fr}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:8px}
  .form-row{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;text-align:center}
  .info-table th{width:96px}
  .file-list li{gap:8px}.file-date{margin-left:0}
}