@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@latest/dist/web/static/pretendard.min.css');
:root {
  --primary: #0d1420;
  --accent: #f5a623;
  --accent-hover: #d98c0f;
  --bg-dark: #ffffff;
  --card-bg: #f5f7fa;
  --text-main: #16202e;
  --text-muted: #5a6b82;
  --border-color: #dde3ec;
  --header-bg: rgba(255, 255, 255, 0.92);
  --elevated-bg: #eef1f6;
  --accent-glow: rgba(245, 166, 35, 0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Pretendard', sans-serif; }
body { background-color: var(--bg-dark); color: var(--text-main); line-height: 1.7; word-break: keep-all; overflow-wrap: break-word; }
header { position: sticky; top: 0; z-index: 1000; background: var(--header-bg); padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.nav-toggle { display: none; }
.hamburger { display: none; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; letter-spacing: 0.3px; color: var(--text-main); text-decoration: none; }
.logo span { color: var(--accent); text-shadow: 0 0 10px var(--accent-glow); }
nav ul { display: flex; list-style: none; gap: 20px; flex-wrap: wrap; }
nav a { color: var(--text-main); text-decoration: none; font-size: 0.95rem; }
nav a:hover, nav a.active { color: var(--accent); }
.hero { padding: 100px 5% 80px; min-height: 640px; display: flex; align-items: center; justify-content: center; text-align: center; background-size: cover; background-position: center; position: relative; overflow: hidden; }
.hero-header { position: absolute; top: 0; left: 0; right: 0; z-index: 3; background: transparent; border-bottom: none; }
.hero-header .logo, .hero-header nav a, .hero-header .hamburger { color: var(--text-main); }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: rgba(255, 255, 255, 0.22); z-index: 1; }
.hero-content { position: relative; z-index: 2; max-width: 780px; padding: 0 16px; }
.hero-eyebrow { display: inline-block; padding: 7px 18px; margin-bottom: 20px; border: 1px solid var(--accent); border-radius: 999px; background: rgba(255, 255, 255, 0.88); box-shadow: 0 2px 10px rgba(16, 21, 31, 0.08); color: var(--accent-hover); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.02em; }
.hero h1 { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text-main); margin-bottom: 16px; }
.hero p { color: var(--text-muted); max-width: 640px; margin: 0 auto 30px; }
.mobile-br { display: none; }
.hero-content h1 { color: var(--text-main); text-shadow: 0 1px 24px rgba(255, 255, 255, 0.9); animation: hero-fade-in 1.2s ease both; }
@keyframes hero-fade-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.hero-content p { color: var(--text-main); text-shadow: 0 1px 16px rgba(255, 255, 255, 0.9); }
.page-hero { padding: 60px 5% 40px; text-align: center; border-bottom: 1px solid var(--border-color); }
.page-hero h1 { font-size: 2rem; font-weight: 800; color: var(--text-main); margin-bottom: 10px; }
.page-hero p { color: var(--text-muted); }
.btn-group { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.btn { padding: 14px 28px; font-size: 1rem; font-weight: 700; border-radius: 8px; text-decoration: none; display: inline-block; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: #fff; box-shadow: 0 0 18px var(--accent-glow); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { border: 2px solid var(--accent); color: var(--accent); }
.container { max-width: 1200px; margin: 0 auto; padding: 60px 20px; }
.section-alt { background: var(--card-bg); }
.section-alt .carousel-card, .section-alt .feature-card, .section-alt .process-step, .section-alt .contact-card { background: var(--elevated-bg); }
.section-title { font-size: 1.8rem; font-weight: 800; color: var(--text-main); text-align: center; margin-bottom: 10px; }
.section-sub { text-align: center; color: var(--text-muted); margin-bottom: 40px; }
.img-wrapper { text-align: center; margin: 30px 0; }
.img-wrapper img { max-width: 100%; border-radius: 12px; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin: 40px 0; }
.feature-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 30px 24px; text-align: center; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25); }
.feature-card .icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h3 { color: var(--text-main); margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }
.carousel { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 10px 4px 20px; scrollbar-width: thin; }
.carousel-card { flex: 0 0 calc((100% - 2 * 16px) / 3); scroll-snap-align: start; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
a.carousel-card { display: block; text-decoration: none; color: inherit; }
.case-grid a.carousel-card[href="#"] { cursor: default; }
.carousel-card img { width: 100%; height: 260px; object-fit: cover; display: block; }
.carousel-full .carousel-card { flex: 0 0 100%; }
.carousel-full .carousel-card img { height: 380px; transition: transform 0.3s ease; }
.carousel-full .carousel-card:hover img { transform: scale(1.05); }
.case-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.case-grid .carousel-card { flex: 1 1 380px; }
.case-grid .carousel-card img { height: 340px; }
.carousel-card p { padding: 12px 14px; color: var(--text-muted); font-size: 0.9rem; text-align: center; }
.carousel-nav { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 16px; }
.carousel-arrow { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border-color); background: var(--elevated-bg); color: var(--text-main); font-size: 1.3rem; line-height: 1; cursor: pointer; }
.carousel-arrow:hover { background: var(--card-bg); }
.carousel-dots { display: flex; align-items: center; gap: 8px; }
.carousel-dot { width: 8px; height: 8px; padding: 0; border: none; border-radius: 4px; background: var(--border-color); cursor: pointer; transition: width 0.2s, background 0.2s; }
.carousel-dot.active { width: 22px; background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
table { width: 100%; border-collapse: collapse; background: var(--card-bg); }
th, td { padding: 15px; border-bottom: 1px solid var(--border-color); text-align: left; }
th { color: var(--accent); }
.cta { background: linear-gradient(rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.82)), url('images/file_6a74077b909bf9.74314005.webp') center/cover; border: none; border-radius: 12px; padding: 60px 20px; text-align: center; margin: 40px 0; }
.phone-cta-btn { font-size: 1.6rem; padding: 22px 40px; }
.cta .section-title { color: var(--text-main); }
.cta .section-sub { color: var(--text-muted); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin: 40px 0; }
.contact-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 30px; text-align: center; }
.contact-card h3 { color: var(--accent); margin-bottom: 10px; }
.contact-card .checklist { text-align: center; }
.contact-card .checklist li { padding-left: 0; }
.contact-card .checklist li::before { position: static; margin-right: 6px; }
form { display: grid; gap: 14px; max-width: 600px; margin: 30px auto 0; }
input, textarea { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 12px 14px; color: var(--text-main); font-size: 1rem; }
textarea { min-height: 120px; resize: vertical; }
footer { background: var(--card-bg); padding: 40px 5%; text-align: center; color: var(--text-muted); border-top: 1px solid var(--border-color); }
.footer-info { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.footer-company { font-weight: 800; color: var(--text-main); font-size: 1.05rem; }
.footer-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 0; font-size: 0.95rem; }
.footer-meta span { white-space: nowrap; }
.footer-meta span:not(:first-child)::before { content: "|"; margin: 0 10px; color: var(--border-color); }
footer .footer-legal { margin-top: 16px; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; font-size: 0.85rem; }
footer .footer-legal a { color: var(--text-muted); text-decoration: none; }
footer .footer-legal a:hover { color: var(--accent); }
.feature-card ul a { text-decoration: none; }
.stats-bar { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 20px; margin: 40px 0; }
.stat-item { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px 10px; text-align: center; }
.stat-item .num { font-size: 2rem; font-weight: 800; color: var(--accent); text-shadow: 0 0 12px var(--accent-glow); }
.stat-item .label { color: var(--text-muted); font-size: 0.9rem; margin-top: 6px; }
.process-steps { display: flex; flex-wrap: wrap; align-items: stretch; justify-content: center; gap: 12px; margin: 40px 0; }
.process-step { flex: 1 1 160px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px 16px; text-align: center; }
.process-step .step-num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; margin-bottom: 12px; box-shadow: 0 0 10px var(--accent-glow); }
.process-step h3 { color: var(--text-main); margin-bottom: 8px; font-size: 1.05rem; }
.process-step p { color: var(--text-muted); font-size: 0.9rem; }
.process-arrow { display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.4rem; font-weight: 800; flex: 0 0 auto; }
.checklist { list-style: none; display: grid; gap: 12px; margin: 20px 0 30px; }
.checklist li { padding-left: 28px; position: relative; color: var(--text-muted); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.compare-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; margin: 40px 0; }
.compare-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; }
.compare-card h3 { text-align: center; margin-bottom: 16px; color: var(--text-main); }
.compare-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.compare-pair img, .compare-pair .placeholder-img { width: 100%; height: 200px; border-radius: 8px; object-fit: cover; display: flex; }
.compare-pair .placeholder-img { align-items: center; justify-content: center; font-size: 2.5rem; background: rgba(0, 0, 0, 0.03); border: 1px dashed var(--border-color); color: var(--text-muted); }

.faq-list { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 4px 20px; }
.faq-item summary { cursor: pointer; padding: 16px 0; font-weight: 700; color: var(--text-main); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; flex-shrink: 0; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--text-muted); padding: 0 0 18px; margin: 0; }
.faq-more-toggle { display: none; }
.faq-more { display: none; }
.faq-more-toggle:checked ~ .faq-more { display: grid; gap: 12px; margin-top: 12px; }
.faq-more-btn { display: block; margin-top: 14px; text-align: center; cursor: pointer; color: var(--accent); font-weight: 700; }
.faq-more-btn .show-less { display: none; }
.faq-more-toggle:checked ~ .faq-more-btn .show-more { display: none; }
.faq-more-toggle:checked ~ .faq-more-btn .show-less { display: inline; }
.compare-pair figcaption { text-align: center; margin-top: 8px; font-size: 0.85rem; font-weight: 700; }
.compare-pair .before figcaption { color: var(--text-muted); }
.compare-pair .after figcaption { color: var(--accent); }

@media (max-width: 640px) {
  header { flex-wrap: wrap; gap: 10px; padding: 12px 4%; }
  .hamburger { display: block; font-size: 1.6rem; line-height: 1; color: var(--text-main); cursor: pointer; }
  nav { flex: 1 0 100%; max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
  .nav-toggle:checked ~ nav { max-height: 300px; }
  nav ul { flex-direction: column; gap: 0; font-size: 0.95rem; padding-top: 8px; }
  nav ul li { border-top: 1px solid var(--border-color); }
  nav ul li a { display: block; padding: 12px 4px; }
  .hero { padding: 70px 5% 50px; min-height: 100svh; }
  .footer-meta { flex-direction: column; gap: 6px; }
  .footer-meta span:not(:first-child)::before { content: none; }
  .cta { padding: 40px 16px; }
  .phone-cta-btn { font-size: 1.2rem; padding: 18px 24px; }
  .cta .section-title { font-size: 1.3rem; }
  .hero h1 { font-size: 2.1rem; }
  .hero p { font-size: 0.95rem; }
  .hero-eyebrow { font-size: 0.75rem; padding: 6px 14px; margin-bottom: 14px; }
  .mobile-br { display: inline; }
  .container { padding: 40px 16px; }
  .section-title { font-size: 1.4rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .carousel-card { flex: 0 0 260px; }
  .carousel-card img { height: 200px; }
  .carousel-full .carousel-card { flex: 0 0 100%; }
  .carousel-full .carousel-card img { height: 240px; }
  .carousel-full .carousel-card p { font-size: 0.85rem; padding: 10px 12px; }
  .case-grid .carousel-card { flex: 1 1 100%; }
  .case-grid .carousel-card img { height: 240px; }
  .compare-pair { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; }
  .process-arrow { transform: rotate(90deg); }
  .spec-table { display: block; overflow-x: auto; white-space: nowrap; }
  table:not(.spec-table) th, table:not(.spec-table) td { padding: 10px 12px; font-size: 0.9rem; }
}