/* ==========================================================================
   Premium Nattokinase — Global Stylesheet
   Deep Navy + White + Silver + Blood Red premium medical design
   ========================================================================== */

:root{
  --navy-900:#050b1a;
  --navy-800:#0a1630;
  --navy-700:#102047;
  --navy-600:#16305f;
  --teal-600:#0e5c66;
  --silver-100:#f4f6f9;
  --silver-200:#e7ebf1;
  --silver-300:#d4dae3;
  --gray-500:#6b7686;
  --white:#ffffff;
  --red-600:#c8102e;
  --red-700:#a50d26;
  --red-500:#e2233f;
  --gold-500:#c9a24a;
  --orange-500:#ea8c1e;
  --orange-600:#d97600;
  --font-kr:'Pretendard','Noto Sans KR',sans-serif;
  --font-en:'Inter',sans-serif;
  --shadow-soft:0 10px 40px rgba(10,22,48,.08);
  --shadow-strong:0 20px 60px rgba(5,11,26,.25);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-kr),var(--font-en);
  color:var(--navy-800);
  background:var(--white);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:100px 0;position:relative;}
.section-tight{padding:70px 0;}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
}

/* ---------- Typography helpers ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red-600);
  margin-bottom:16px;
}
.eyebrow::before{
  content:'';
  width:22px;height:2px;
  background:var(--red-600);
  display:inline-block;
}
.section-title{
  font-size:clamp(1.7rem,3.2vw,2.6rem);
  font-weight:800;
  color:var(--navy-900);
  letter-spacing:-.01em;
  line-height:1.35;
}
.section-desc{
  margin-top:16px;
  font-size:1.05rem;
  color:var(--gray-500);
  max-width:640px;
  line-height:1.8;
}
.center{text-align:center;margin-left:auto;margin-right:auto;}
.text-white{color:var(--white);}
.accent{color:var(--red-600);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 30px;
  border-radius:100px;
  font-weight:700;
  font-size:.95rem;
  transition:all .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--red-600),var(--red-700));
  color:var(--white);
  box-shadow:0 12px 30px rgba(200,16,46,.28);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(200,16,46,.38);}
.btn-outline{
  border:1.5px solid rgba(255,255,255,.5);
  color:var(--white);
  background:rgba(255,255,255,.05);
}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:var(--white);}
.btn-navy{
  background:var(--navy-800);
  color:var(--white);
}
.btn-navy:hover{background:var(--navy-900);transform:translateY(-3px);}
.btn-sm{padding:10px 22px;font-size:.85rem;}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(5,11,26,.0);
  transition:background .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
  padding:18px 0;
}
.site-header.scrolled{
  background:rgba(6,13,30,.92);
  backdrop-filter:blur(14px);
  box-shadow:0 4px 24px rgba(0,0,0,.15);
  padding:12px 0;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--white);
  font-weight:800;
  font-size:1.15rem;
  letter-spacing:-.01em;
}
.brand .brand-mark{
  width:38px;height:38px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--red-600),var(--navy-700));
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;font-weight:800;color:#fff;
  flex-shrink:0;
}
.brand small{
  display:block;font-size:.62rem;font-weight:500;letter-spacing:.08em;
  color:var(--silver-300);text-transform:uppercase;
}
.main-nav{display:flex;align-items:center;gap:38px;}
.main-nav ul{display:flex;gap:34px;}
.main-nav a{
  color:rgba(255,255,255,.85);
  font-weight:600;
  font-size:.92rem;
  position:relative;
  padding:6px 0;
  transition:color .2s;
}
.main-nav a:hover,.main-nav a.active{color:var(--white);}
.main-nav a.active::after{
  content:'';position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--red-600);
}
.nav-cta{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  background:rgba(255,255,255,.1);
  color:#fff;
  align-items:center;justify-content:center;
  font-size:1.2rem;
}
@media (max-width:1024px){
  .main-nav ul{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta .btn{display:none;}
}

/* ---------- Language switcher (KO | EN | VI | ZH) ---------- */
.lang-switch{
  display:flex;align-items:center;gap:2px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
  border-radius:100px;
  padding:3px;
  flex-shrink:0;
  white-space:nowrap;
}
.lang-switch button{
  appearance:none;border:none;background:transparent;cursor:pointer;
  padding:6px 11px;
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.02em;
  color:rgba(255,255,255,.55);
  border-radius:100px;
  transition:background .2s, color .2s;
  white-space:nowrap;
}
@media (min-width:1025px) and (max-width:1220px){
  .main-nav{gap:22px;}
  .main-nav ul{gap:20px;}
  .lang-switch button{padding:6px 9px;font-size:.68rem;}
}
.lang-switch button.active{
  background:var(--red-600);
  color:#fff;
  box-shadow:0 4px 12px rgba(200,16,46,.35);
}
.lang-switch button:not(.active):hover{color:#fff;}
.mobile-menu .lang-switch{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.18);
  margin-top:22px;
  width:fit-content;
}
@media (max-width:1024px){
  .header-lang-switch{display:none;}
}
.mobile-menu{
  position:fixed;top:0;right:0;bottom:0;
  width:78%;max-width:320px;
  background:var(--navy-900);
  z-index:1200;
  padding:28px 26px;
  transform:translateX(100%);
  transition:transform .35s ease;
  box-shadow:-10px 0 40px rgba(0,0,0,.4);
}
.mobile-menu.open{transform:translateX(0);}
.mobile-menu ul{display:flex;flex-direction:column;gap:6px;margin-top:36px;}
.mobile-menu a{
  display:block;padding:14px 6px;color:#fff;font-weight:700;font-size:1.02rem;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-menu .close-btn{
  color:#fff;font-size:1.4rem;position:absolute;top:24px;right:24px;
}
.menu-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1100;
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.menu-overlay.show{opacity:1;pointer-events:auto;}

/* ==========================================================================
   Page Hero (sub pages)
   ========================================================================== */
.page-hero{
  position:relative;
  padding:190px 0 90px;
  background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy-700) 70%,var(--teal-600) 130%);
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 85% 20%,rgba(200,16,46,.28),transparent 55%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero .breadcrumb{
  font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:18px;
  display:flex;gap:8px;align-items:center;
}
.page-hero .breadcrumb a{color:rgba(255,255,255,.8);}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.1rem);
  font-weight:800;
  letter-spacing:-.01em;
  max-width:760px;
}
.page-hero p{
  margin-top:18px;
  font-size:1.08rem;
  color:rgba(255,255,255,.75);
  max-width:600px;
}

/* ==========================================================================
   Hero (home)
   ========================================================================== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  background:linear-gradient(160deg,var(--navy-900) 0%, var(--navy-700) 55%, var(--teal-600) 130%);
  color:#fff;
  overflow:hidden;
  padding-top:120px;
}
.hero::before{
  content:'';
  position:absolute;inset:0;
  background-image:url('../images/hero-vessel.jpg');
  background-size:cover;background-position:center;
  opacity:.22;
  mix-blend-mode:screen;
}
.hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 15% 25%,rgba(200,16,46,.35),transparent 45%),
             radial-gradient(circle at 85% 80%,rgba(14,92,102,.5),transparent 50%);
}
.hero-flow{
  position:absolute;
  top:0;bottom:0;right:-5%;
  width:60%;
  opacity:.5;
  pointer-events:none;
}
.hero .container{position:relative;z-index:3;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:50px;
  align-items:center;
}
.hero-badges{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px;
}
.hero-badge{
  padding:8px 16px;
  border-radius:100px;
  font-size:.78rem;
  font-weight:700;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  backdrop-filter:blur(6px);
}
.hero h1{
  font-size:clamp(2.1rem,4.6vw,3.5rem);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.015em;
}
.hero h1 .hl{
  color:var(--red-500);
  position:relative;
}
.hero-sub{
  margin-top:22px;
  font-size:1.12rem;
  color:rgba(255,255,255,.78);
  max-width:520px;
  line-height:1.8;
}
.hero-actions{
  margin-top:38px;
  display:flex;gap:14px;flex-wrap:wrap;
}
.hero-stats{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(3,auto);
  gap:34px;
}
.hero-stat b{
  display:block;font-size:1.7rem;font-weight:800;color:#fff;
}
.hero-stat span{
  font-size:.78rem;color:rgba(255,255,255,.6);letter-spacing:.03em;
}
.hero-card{
  position:relative;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-lg);
  padding:26px;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-strong);
}
.hero-card img{
  border-radius:14px;width:100%;height:290px;object-fit:cover;
}
.hero-card .card-tag{
  position:absolute;top:-16px;left:24px;
  background:var(--red-600);
  color:#fff;font-weight:800;font-size:.85rem;
  padding:9px 18px;border-radius:100px;
  box-shadow:0 10px 24px rgba(200,16,46,.4);
}
.hero-card .card-info{
  margin-top:20px;
  display:flex;justify-content:space-between;gap:12px;
}
.hero-card .card-info div{flex:1;text-align:center;padding:14px 6px;background:rgba(255,255,255,.06);border-radius:12px;}
.hero-card .card-info b{display:block;font-size:1.2rem;color:#fff;}
.hero-card .card-info span{font-size:.72rem;color:rgba(255,255,255,.6);}

/* Natto visual with functionality badges (hero) */
.natto-visual{
  position:relative;
  height:320px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.natto-visual img{
  height:100%;width:auto;max-width:100%;
  object-fit:contain;
  filter:drop-shadow(0 18px 30px rgba(0,0,0,.45));
  position:relative;z-index:2;
}
.natto-badge{
  position:absolute;
  z-index:3;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:104px;height:104px;
  border-radius:50%;
  color:#fff;font-weight:800;font-size:1.02rem;line-height:1.35;
  text-align:center;
  box-shadow:0 12px 28px rgba(0,0,0,.35);
  border:2px solid rgba(255,255,255,.5);
}
.natto-badge.badge-circulation{
  left:2%;top:14%;
  background:linear-gradient(150deg,#1a9e6e,#0e5c66);
}
.natto-badge.badge-pressure{
  right:2%;bottom:10%;
  background:linear-gradient(150deg,var(--red-500),var(--red-700));
}
@media (max-width:1024px){
  .natto-visual{height:280px;}
  .natto-badge{width:88px;height:88px;font-size:.9rem;}
}
@media (max-width:480px){
  .natto-visual{height:230px;}
  .natto-badge{width:74px;height:74px;font-size:.78rem;}
}
.scroll-cue{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:rgba(255,255,255,.55);font-size:.72rem;letter-spacing:.1em;
  z-index:3;
}
.scroll-cue .dot{
  width:1px;height:34px;background:linear-gradient(rgba(255,255,255,.6),transparent);
  position:relative;overflow:hidden;
}
.scroll-cue .dot::after{
  content:'';position:absolute;top:0;left:0;width:100%;height:10px;
  background:#fff;animation:scrollmove 1.8s infinite;
}
@keyframes scrollmove{0%{top:-10px;}100%{top:34px;}}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-card{max-width:460px;}
  .hero-stats{grid-template-columns:repeat(3,1fr);}
}

/* ==========================================================================
   Fact cards / feature grid
   ========================================================================== */
.fact-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:56px;
}
@media (max-width:1024px){.fact-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.fact-grid{grid-template-columns:1fr;}}
.fact-card{
  background:var(--white);
  border:1px solid var(--silver-200);
  border-radius:var(--radius-lg);
  padding:34px 26px;
  transition:transform .3s ease, box-shadow .3s ease;
  position:relative;
  overflow:hidden;
}
.fact-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-soft);border-color:transparent;}
.fact-card .num{
  font-size:.78rem;font-weight:800;color:var(--red-600);letter-spacing:.08em;margin-bottom:16px;display:block;
}
.fact-card .icon{
  width:56px;height:56px;border-radius:16px;
  background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.5rem;margin-bottom:20px;
}
.fact-card h3{font-size:1.15rem;font-weight:800;color:var(--navy-900);margin-bottom:10px;line-height:1.4;}
.fact-card p{font-size:.92rem;color:var(--gray-500);line-height:1.7;}

/* ==========================================================================
   Stats band (numbers)
   ========================================================================== */
.stats-band{
  background:linear-gradient(120deg,var(--navy-900),var(--navy-700));
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:'';position:absolute;inset:0;
  background:url('../images/vessel-network.jpg') center/cover;
  opacity:.15;
}
.stats-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:20px;
  text-align:center;
}
@media (max-width:1024px){.stats-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:600px){.stats-grid{grid-template-columns:repeat(2,1fr);}}
.stat-item b{
  display:block;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:800;
  color:#fff; font-family:var(--font-en);
}
.stat-item span{font-size:.82rem;color:rgba(255,255,255,.65);margin-top:6px;display:block;}

/* ==========================================================================
   Mechanism / process flow
   ========================================================================== */
.flow-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:60px;
  flex-wrap:wrap;
}
.flow-step{
  flex:1;
  min-width:130px;
  text-align:center;
  padding:26px 14px;
  background:var(--silver-100);
  border-radius:var(--radius-md);
  position:relative;
}
.flow-step .fs-icon{
  width:52px;height:52px;border-radius:50%;
  background:var(--white);
  border:2px solid var(--red-600);
  color:var(--red-600);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;font-size:1.3rem;
}
.flow-step b{display:block;font-size:.95rem;color:var(--navy-900);}
.flow-step span{font-size:.75rem;color:var(--gray-500);}
.flow-arrow{color:var(--silver-300);font-size:1.4rem;flex:0 0 auto;}
@media (max-width:768px){
  .flow-row{flex-direction:column;}
  .flow-arrow{transform:rotate(90deg);}
}

/* ==========================================================================
   Two-col image/text sections
   ========================================================================== */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.split.reverse .split-media{order:2;}
.split.reverse .split-text{order:1;}
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:36px;}
  .split.reverse .split-media,.split.reverse .split-text{order:initial;}
}
.split-media{position:relative;}
.split-media img{
  border-radius:var(--radius-lg);
  width:100%;height:420px;object-fit:cover;
  box-shadow:var(--shadow-soft);
}
.split-media .float-tag{
  position:absolute;bottom:-22px;left:24px;
  background:#fff;padding:16px 22px;border-radius:14px;
  box-shadow:var(--shadow-strong);
  display:flex;align-items:center;gap:12px;
}
.split-media .float-tag .ft-ico{
  width:40px;height:40px;border-radius:10px;background:var(--red-600);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;
}
.split-media .float-tag b{display:block;font-size:1rem;color:var(--navy-900);}
.split-media .float-tag span{font-size:.72rem;color:var(--gray-500);}
.split-text ul.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.split-text ul.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:.96rem;color:var(--navy-800);
}
.split-text ul.check-list li i{color:var(--red-600);margin-top:3px;}

/* ==========================================================================
   Timeline (process)
   ========================================================================== */
.timeline{
  position:relative;
  margin-top:60px;
  padding-left:0;
}
.timeline-track{
  display:flex;
  overflow-x:auto;
  gap:0;
  padding-bottom:10px;
}
.timeline-node{
  flex:1;min-width:150px;
  text-align:center;
  position:relative;
  padding:0 10px 30px;
}
.timeline-node::before{
  content:'';position:absolute;top:24px;left:0;right:0;height:2px;background:var(--silver-300);
}
.timeline-node:first-child::before{left:50%;}
.timeline-node:last-child::before{right:50%;}
.timeline-dot{
  width:48px;height:48px;border-radius:50%;
  background:var(--navy-800);color:#fff;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;font-weight:800;font-size:.95rem;position:relative;z-index:2;
}
.timeline-node.accent .timeline-dot{background:var(--red-600);}
.timeline-node b{display:block;font-size:.92rem;color:var(--navy-900);margin-bottom:4px;}
.timeline-node span{font-size:.75rem;color:var(--gray-500);}

/* ==========================================================================
   Cards (certificates / products)
   ========================================================================== */
.cert-grid,.product-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
  margin-top:50px;
}
@media (max-width:1024px){.cert-grid,.product-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.cert-grid,.product-grid{grid-template-columns:1fr;}}
.cert-card{
  background:var(--white);
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--silver-200);
  transition:transform .3s, box-shadow .3s;
}
.cert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft);}
.cert-card .cc-head{
  background:linear-gradient(135deg,var(--navy-900),var(--navy-700));
  color:#fff;padding:30px 24px;position:relative;
}
.cert-card .cc-head .cc-badge{
  width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px;
}
.cert-card .cc-head h3{font-size:1.05rem;font-weight:800;}
.cert-card .cc-head span{font-size:.78rem;color:rgba(255,255,255,.6);}
.cert-card .cc-body{padding:22px 24px;}
.cert-card .cc-body p{font-size:.88rem;color:var(--gray-500);line-height:1.7;}
.cert-card .cc-body .tag{
  display:inline-block;margin-top:14px;font-size:.72rem;font-weight:700;
  color:var(--red-600);background:rgba(200,16,46,.08);padding:5px 12px;border-radius:100px;
}

/* Product cards */
.product-card{
  background:var(--white);
  border-radius:var(--radius-lg);
  border:1px solid var(--silver-200);
  padding:30px 26px;
  transition:all .3s ease;
  position:relative;
}
.product-card:hover{box-shadow:var(--shadow-soft);transform:translateY(-6px);}
.product-card .pc-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px;}
.product-card .pc-fu{
  background:var(--navy-900);color:#fff;font-size:.72rem;font-weight:800;
  padding:6px 12px;border-radius:100px;
}
.product-card h3{font-size:1.2rem;font-weight:800;color:var(--navy-900);margin-bottom:8px;}
.product-card p{font-size:.88rem;color:var(--gray-500);margin-bottom:18px;line-height:1.7;}
.product-card .pc-tags{display:flex;gap:8px;flex-wrap:wrap;}
.product-card .pc-tags span{
  font-size:.72rem;font-weight:700;color:var(--teal-600);
  background:rgba(14,92,102,.08);padding:6px 12px;border-radius:100px;
}

/* ==========================================================================
   Tables
   ========================================================================== */
.spec-table-wrap{
  margin-top:44px;
  overflow-x:auto;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
}
table.spec-table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  min-width:640px;
}
table.spec-table th,table.spec-table td{
  padding:20px 24px;
  text-align:left;
  font-size:.92rem;
  border-bottom:1px solid var(--silver-200);
}
table.spec-table thead th{
  background:var(--navy-900);
  color:#fff;
  font-size:.85rem;
  font-weight:700;
  letter-spacing:.02em;
}
table.spec-table tbody tr:nth-child(even){background:var(--silver-100);}
table.spec-table td:first-child{font-weight:700;color:var(--navy-800);white-space:nowrap;}
table.spec-table tbody tr:last-child td{border-bottom:none;}

/* ==========================================================================
   Safety guide grid
   ========================================================================== */
.safety-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px;
}
@media (max-width:900px){.safety-grid{grid-template-columns:1fr;}}
.safety-card{
  border:1.5px solid var(--silver-200);
  border-radius:var(--radius-md);
  padding:26px;
  background:var(--white);
}
.safety-card .sc-emoji{font-size:1.8rem;margin-bottom:14px;display:block;}
.safety-card h4{font-size:1rem;font-weight:800;color:var(--navy-900);margin-bottom:8px;}
.safety-card p{font-size:.86rem;color:var(--gray-500);line-height:1.7;}

/* ==========================================================================
   Disclaimer / compliance note box
   ========================================================================== */
.disclaimer-box{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff4e5;border:1.5px solid #f3c98b;
  border-radius:var(--radius-md);
  padding:20px 24px;margin:30px 0 40px;
}
.disclaimer-box i{color:#b4720a;font-size:1.3rem;margin-top:2px;flex-shrink:0;}
.disclaimer-box p{font-size:.88rem;color:#7a5210;line-height:1.75;margin:0;}
.disclaimer-box b{color:#5c3d08;}

/* Academic reference card */
.ref-card{
  background:#fff;border:1px solid var(--silver-200);border-radius:var(--radius-lg);
  padding:26px 28px;margin-bottom:20px;
}
.ref-card .ref-tag{
  display:inline-block;font-size:.72rem;font-weight:700;color:var(--gray-500);
  background:var(--silver-100);padding:5px 12px;border-radius:100px;margin-bottom:12px;
}
.ref-card h4{font-size:1.02rem;font-weight:800;color:var(--navy-900);margin-bottom:10px;line-height:1.5;}
.ref-card p{font-size:.88rem;color:var(--gray-500);line-height:1.75;margin:0;}
.ref-card .ref-src{display:block;margin-top:12px;font-size:.76rem;color:var(--gray-500);font-style:italic;}

/* Comparison table country badge */
.country-badge{
  display:inline-flex;align-items:center;gap:6px;font-weight:800;
}

/* ==========================================================================
   FAQ accordion
   ========================================================================== */
.accordion{margin-top:40px;display:flex;flex-direction:column;gap:12px;}
.acc-item{
  border:1px solid var(--silver-200);
  border-radius:var(--radius-md);
  overflow:hidden;
  background:#fff;
}
.acc-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 26px;
  cursor:pointer;
  font-weight:700;
  color:var(--navy-900);
  font-size:.98rem;
}
.acc-head i{transition:transform .3s ease;color:var(--red-600);flex-shrink:0;margin-left:16px;}
.acc-item.open .acc-head i{transform:rotate(45deg);}
.acc-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  padding:0 26px;
}
.acc-body-inner{padding-bottom:22px;color:var(--gray-500);font-size:.9rem;line-height:1.8;}
.acc-item.open .acc-body{max-height:600px;}

/* ==========================================================================
   Chart containers
   ========================================================================== */
.chart-card{
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px solid var(--silver-200);
  padding:30px;
  box-shadow:var(--shadow-soft);
}
.chart-card h4{font-size:1rem;font-weight:800;color:var(--navy-900);margin-bottom:4px;}
.chart-card .src{font-size:.74rem;color:var(--gray-500);margin-bottom:18px;display:block;}
.chart-wrap{position:relative;height:280px;}
.chart-note{
  margin-top:16px;font-size:.76rem;color:var(--gray-500);
  background:var(--silver-100);padding:12px 16px;border-radius:10px;
}

/* ==========================================================================
   Slider / Certificate showcase strip
   ========================================================================== */
.badge-strip{
  display:flex;flex-wrap:wrap;gap:16px;margin-top:40px;justify-content:center;
}
.badge-pill{
  display:flex;align-items:center;gap:10px;
  background:var(--silver-100);
  border:1px solid var(--silver-200);
  padding:12px 22px;border-radius:100px;
  font-size:.85rem;font-weight:700;color:var(--navy-800);
}
.badge-pill i{color:var(--red-600);}

/* ==========================================================================
   Checklist section (home)
   ========================================================================== */
.check-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:44px;
}
@media (max-width:700px){.check-grid{grid-template-columns:1fr;}}
.check-box{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--silver-100);
  padding:22px 24px;border-radius:var(--radius-md);
  border:1px solid transparent;
  transition:.25s;
}
.check-box:hover{border-color:var(--red-600);background:#fff;box-shadow:var(--shadow-soft);}
.check-box .cb-mark{
  width:26px;height:26px;border-radius:7px;border:2px solid var(--red-600);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--red-600);font-size:.8rem;margin-top:2px;
}
.check-box p{font-size:.94rem;color:var(--navy-800);font-weight:600;}

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  background:linear-gradient(120deg,var(--red-700),var(--red-600) 60%, var(--navy-800));
  color:#fff;
  border-radius:var(--radius-lg);
  padding:60px 50px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px;
  flex-wrap:wrap;
}
.cta-band h3{font-size:1.7rem;font-weight:800;max-width:560px;line-height:1.4;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.85);font-size:.95rem;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ==========================================================================
   Contact form
   ========================================================================== */
.contact-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;margin-top:50px;
}
@media (max-width:900px){.contact-wrap{grid-template-columns:1fr;}}
.contact-info-card{
  background:linear-gradient(150deg,var(--navy-900),var(--navy-700));
  color:#fff;
  border-radius:var(--radius-lg);
  padding:40px 34px;
}
.contact-info-card h3{font-size:1.3rem;font-weight:800;margin-bottom:16px;}
.contact-info-card p{color:rgba(255,255,255,.7);font-size:.9rem;margin-bottom:30px;line-height:1.8;}
.contact-line{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-top:1px solid rgba(255,255,255,.12);
}
.contact-line i{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--red-500);
}
.contact-line b{display:block;font-size:.78rem;color:rgba(255,255,255,.5);font-weight:500;}
.contact-line span{font-size:.95rem;font-weight:700;}
.form-card{
  background:#fff;border:1px solid var(--silver-200);border-radius:var(--radius-lg);
  padding:40px 34px;box-shadow:var(--shadow-soft);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;}
@media (max-width:520px){.form-row{grid-template-columns:1fr;}}
.form-group{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.form-group label{font-size:.84rem;font-weight:700;color:var(--navy-800);}
.form-group input,.form-group select,.form-group textarea{
  padding:13px 16px;border:1.5px solid var(--silver-300);border-radius:var(--radius-sm);
  font-size:.92rem;font-family:inherit;color:var(--navy-900);transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--red-600);
}
.form-group textarea{resize:vertical;min-height:120px;}
.form-note{font-size:.78rem;color:var(--gray-500);margin-top:6px;}
.submit-msg{
  margin-top:16px;padding:14px 18px;border-radius:10px;background:#e9f7ef;color:#1a7a44;
  font-size:.88rem;font-weight:600;display:none;
}
.submit-msg.show{display:block;}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{
  background:var(--navy-900);
  color:rgba(255,255,255,.65);
  padding:64px 0 30px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:.86rem;line-height:1.8;color:rgba(255,255,255,.5);max-width:320px;}
.footer-col h5{color:#fff;font-size:.88rem;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:.86rem;color:rgba(255,255,255,.55);transition:color .2s;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:.78rem;color:rgba(255,255,255,.4);
}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.social-row a:hover{background:var(--red-600);}

/* ==========================================================================
   Utility / animation
   ========================================================================== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}
.tag-pill{
  display:inline-block;padding:5px 14px;border-radius:100px;font-size:.72rem;font-weight:700;
  background:rgba(200,16,46,.08);color:var(--red-600);
}
.divider-line{height:1px;background:var(--silver-200);margin:70px 0;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media (max-width:768px){.grid-2{grid-template-columns:1fr;}}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:900px){.grid-3{grid-template-columns:1fr 1fr;}}
@media (max-width:600px){.grid-3{grid-template-columns:1fr;}}

.floating-quickbar{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:flex;flex-direction:column;gap:10px;
}
.floating-quickbar a{
  width:52px;height:52px;border-radius:50%;
  background:var(--red-600);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(200,16,46,.4);
  font-size:1.1rem;
  transition:transform .2s;
}
.floating-quickbar a:hover{transform:scale(1.08);}

/* ==========================================================================
   B2B Exclusive Partner Recruitment Popup (한국어 단독, 언어 전환 무관 고정)
   ========================================================================== */
.b2b-popup-overlay{
  position:fixed;inset:0;z-index:2000;
  background:rgba(20,14,4,.6);
  backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  opacity:0;pointer-events:none;
  transition:opacity .3s ease;
}
.b2b-popup-overlay.show{opacity:1;pointer-events:auto;}
.b2b-popup-modal{
  position:relative;
  width:100%;max-width:520px;
  max-height:92vh;overflow-y:auto;
  background:linear-gradient(160deg,#fff9f2 0%,#fff4e6 45%,#ffe9d1 100%);
  border:1px solid rgba(234,140,30,.25);
  border-top:5px solid var(--orange-500);
  border-radius:var(--radius-lg);
  box-shadow:0 30px 80px rgba(120,60,0,.28);
  padding:44px 38px 34px;
  color:var(--navy-900);
  text-align:center;
  transform:translateY(24px) scale(.97);
  opacity:0;
  transition:transform .35s ease, opacity .35s ease;
}
.b2b-popup-overlay.show .b2b-popup-modal{transform:translateY(0) scale(1);opacity:1;}
.b2b-popup-close{
  position:absolute;top:16px;right:16px;
  width:34px;height:34px;border-radius:50%;
  background:rgba(234,140,30,.1);border:1px solid rgba(234,140,30,.3);
  color:var(--navy-700);
  display:flex;align-items:center;justify-content:center;
  font-size:.95rem;cursor:pointer;
  transition:background .2s,color .2s;
}
.b2b-popup-close:hover{background:#0F294A;color:#fff;border-color:#0F294A;}
.b2b-popup-tag{
  display:inline-block;padding:6px 16px;border-radius:100px;
  background:#0F294A;border:1px solid #0F294A;
  color:#fff;font-size:.76rem;font-weight:800;letter-spacing:.02em;
  margin-bottom:18px;
  box-shadow:0 6px 16px rgba(15,41,74,.35);
}
.b2b-popup-title{
  font-size:1.42rem;font-weight:700;line-height:1.4;
  color:#0F294A;margin:0 0 14px;
}
.b2b-popup-subtitle{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.96rem;font-weight:700;color:#1E3A8A;
  background:#eaf0fb;border:1px solid rgba(15,41,74,.4);
  border-radius:100px;padding:9px 18px;
  margin:0 0 20px;
}
.b2b-popup-desc{
  font-size:.96rem;font-weight:600;line-height:1.75;color:#111827;
  margin:0 0 26px;
}
.b2b-popup-info-row{
  display:flex;flex-direction:column;gap:6px;
  text-align:left;
  background:#fff;
  border:1px solid rgba(234,140,30,.22);
  border-radius:var(--radius-md);
  padding:14px 18px;
  margin-bottom:12px;
}
.b2b-popup-info-label{
  font-size:.86rem;font-weight:800;color:#000;
}
.b2b-popup-info-label i{color:var(--orange-500);width:16px;}
.b2b-popup-info-text{
  font-size:.94rem;font-weight:600;color:#000;line-height:1.65;
}
.b2b-popup-footer{
  margin-top:26px;
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.b2b-popup-cta{
  width:100%;justify-content:center;
  font-size:1rem;padding:16px 20px;
  background:linear-gradient(135deg,var(--orange-500),var(--orange-600));
  border:none;color:#fff;
  box-shadow:0 12px 28px rgba(234,140,30,.4);
}
.b2b-popup-cta:hover{background:linear-gradient(135deg,var(--orange-600),var(--orange-500));}
.b2b-popup-hide-today{
  display:flex;align-items:center;gap:8px;
  font-size:.82rem;font-weight:600;color:#1F2937;
  cursor:pointer;user-select:none;
}
.b2b-popup-hide-today input{width:16px;height:16px;accent-color:var(--orange-500);cursor:pointer;}
@media (max-width:480px){
  .b2b-popup-modal{padding:34px 22px 26px;}
  .b2b-popup-title{font-size:1.2rem;}
}