:root {
  --theme: #26a9e0;
  --theme-dark: #0f6f99;
  --theme-deep: #063f59;
  --theme-light: #edf9fe;
  --theme-soft: #dff4fc;
  --theme-accent: #64c9f0;
  --theme-hover: #1588bd;
  --theme-border: rgba(38, 169, 224, 0.28);
  --header-bg: #e1f6fd;
  --header-bg-2: #b9e9f9;
  --text-main: #123241;
  --text-muted: #4e6976;
  --on-theme: #ffffff;
  --on-header: #083247;
  --on-dark: #f4fbff;
  --white: #ffffff;
  --shadow-soft: 0 18px 46px rgba(15, 111, 153, 0.16);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; overflow-y: auto; }
body { background: var(--theme-light); color: var(--text-main); font-family: Arial, Helvetica, sans-serif; }
a { color: var(--theme-dark); }
img { max-width: 100%; }
.container, .section-inner, .header-inner, .footer-inner { width: min(1280px, calc(100% - 80px)); margin-left: auto; margin-right: auto; }
@media (min-width: 1440px) { .container, .section-inner, .header-inner, .footer-inner { width: min(1360px, calc(100% - 120px)); } }
@media (max-width: 767px) { .container, .section-inner, .header-inner, .footer-inner { width: min(100% - 32px, 1280px); } }
.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: linear-gradient(180deg, var(--header-bg) 0%, var(--header-bg-2) 100%); color: var(--on-header); box-shadow: var(--shadow-soft); overflow: visible; }
.header-inner { min-height: 82px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; overflow: visible; }
.site-logo { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; overflow: visible; }
.site-logo img { display: block; width: auto; height: auto; max-width: 190px; max-height: 72px; object-fit: contain; }
.main-nav { display: flex; justify-content: center; align-items: center; gap: 20px; }
.main-nav a { color: var(--on-header); text-decoration: none; white-space: nowrap; font-weight: 700; font-size: 15px; padding: 30px 0 24px; border-bottom: 2px solid transparent; }
.main-nav a.active, .main-nav a:hover { color: var(--theme-deep); border-bottom: 2px solid var(--theme); }
.main-btn, .drawer-login, .text-link { background: linear-gradient(180deg, var(--theme-accent) 0%, var(--theme) 48%, var(--theme-dark) 100%); color: var(--on-theme); border-radius: 999px; box-shadow: var(--shadow-soft); text-decoration: none; white-space: nowrap; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; padding: 13px 20px; border: 0; }
.mobile-menu-toggle { display: none; border: 1px solid var(--theme-border); background: var(--white); border-radius: 14px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.mobile-menu-toggle span { width: 22px; height: 2px; background: var(--theme-deep); border-radius: 999px; }
.section { padding: 56px 0; }
.section-title { max-width: 900px; margin: 0 0 28px; }
.section-title .badge, .article-label, .hero-label { margin-bottom: 12px; }
h1 { font-size: clamp(38px, 4.2vw, 66px); line-height: 1.08; color: var(--theme-deep); margin: 0 0 18px; }
h2 { color: var(--theme-dark); font-size: clamp(26px, 2.3vw, 38px); margin: 0 0 16px; line-height: 1.18; }
h3 { color: var(--theme-deep); font-size: 21px; margin: 0 0 10px; }
p { line-height: 1.78; margin: 0 0 16px; }
ul { margin: 0; padding-left: 20px; line-height: 1.8; }
.banner-section { padding: 36px 0 24px; background: linear-gradient(180deg, rgba(255,255,255,.65), transparent); }
.banner-carousel { position: relative; width: 100%; border-radius: 28px; overflow: visible; background: var(--theme-soft); box-shadow: var(--shadow-soft); border: 1px solid var(--theme-border); }
.banner-slide { display: none; min-height: 320px; align-items: center; justify-content: center; padding: 12px; }
.banner-slide.active { display: flex; }
.banner-slide img { display: block; width: 100%; height: auto; max-height: 560px; object-fit: contain; border-radius: 22px; }
.banner-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border: 0; border-radius: 999px; background: rgba(255,255,255,.92); color: var(--theme-deep); font-size: 34px; line-height: 1; box-shadow: var(--shadow-soft); cursor: pointer; }
.banner-prev { left: 18px; }
.banner-next { right: 18px; }
.banner-dots { position: absolute; left: 0; right: 0; bottom: 18px; display: flex; justify-content: center; gap: 10px; }
.banner-dots button { width: 12px; height: 12px; border: 0; border-radius: 999px; background: rgba(255,255,255,.72); cursor: pointer; }
.banner-dots button.active { width: 30px; background: var(--theme); }
.intro-card { background: var(--white); border: 1px solid var(--theme-border); border-radius: 28px; padding: 34px; box-shadow: var(--shadow-soft); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 24px; align-items: center; }
.category-pills { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-start; }
.category-pills a, .category-pill, .tag, .badge { border-radius: 999px; padding: 10px 16px; display: inline-flex; width: auto; max-width: max-content; background: var(--theme-soft); border: 1px solid var(--theme-border); color: var(--theme-deep); text-decoration: none; font-weight: 800; }
.headline-section { padding-top: 26px; }
.grid-4, .category-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.grid-2, .split-grid, .news-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; align-items: stretch; }
.card, .zone-card, .info-card, .feature-card, .category-card, .faq-item, .notice, .visual-card, .article-card, .quote-card { background: var(--white); color: var(--text-main); border: 1px solid var(--theme-border); box-shadow: var(--shadow-soft); border-radius: 24px; min-height: auto; height: auto; padding: 28px; }
.category-card { display: flex; flex-direction: column; gap: 12px; }
.category-card a { font-weight: 800; text-decoration: none; margin-top: auto; }
.media-box, .banner-media, .hero-visual, .app-visual, .card-media, .article-media { display: flex; align-items: center; justify-content: center; overflow: visible; }
.media-box img, .banner-media img, .hero-visual img, .app-visual img, .card-media img, .article-media img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.card-media { min-height: 170px; background: var(--theme-soft); border-radius: 20px; padding: 16px; margin-bottom: 16px; }
.card-media img { max-height: 150px; }
.app-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr); gap: 34px; align-items: center; }
.app-visual { background: var(--white); border: 1px solid var(--theme-border); border-radius: 28px; padding: 28px; min-height: 320px; box-shadow: var(--shadow-soft); }
.app-visual img { max-height: 280px; }
.article-hero { padding: 56px 0 30px; background: linear-gradient(180deg, var(--theme-light), rgba(255,255,255,.52)); }
.article-hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr); gap: 38px; align-items: center; }
.article-media { background: var(--white); border: 1px solid var(--theme-border); border-radius: 30px; box-shadow: var(--shadow-soft); min-height: 330px; padding: 30px; }
.article-media img { max-height: 280px; }
.point-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.faq-list { display: grid; gap: 18px; }
.related-nav { display: flex; flex-wrap: wrap; gap: 12px; }
.related-nav a { background: var(--white); border: 1px solid var(--theme-border); color: var(--theme-dark); border-radius: 999px; padding: 10px 15px; text-decoration: none; font-weight: 800; }
.notice { background: linear-gradient(180deg, var(--white), var(--theme-soft)); }
.footer { background: var(--theme-deep); color: var(--on-dark); padding: 54px 0 0; }
.footer a { color: var(--on-dark); text-decoration: none; display: block; margin: 9px 0; }
.footer-inner { display: grid; grid-template-columns: 1.3fr .7fr .7fr 1fr; gap: 34px; }
.footer-brand img { max-width: 180px; max-height: 70px; object-fit: contain; margin-bottom: 16px; }
.footer-col h2 { font-size: 20px; color: var(--on-dark); margin: 0 0 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.18); margin-top: 34px; padding: 18px 40px; display: flex; justify-content: space-between; gap: 18px; color: rgba(255,255,255,.84); }
.mobile-drawer { position: fixed; top: 0; left: 0; width: 82%; max-width: 320px; height: 100vh; transform: translateX(-100%); transition: transform .28s ease; z-index: 10001; background: var(--header-bg); color: var(--on-header); padding: 22px; box-shadow: var(--shadow-soft); }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-overlay { position: fixed; inset: 0; opacity: 0; visibility: hidden; z-index: 10000; background: rgba(6,63,89,.44); transition: .22s ease; }
.drawer-overlay.is-open { opacity: 1; visibility: visible; }
body.menu-open { overflow: hidden; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.drawer-head img { max-width: 150px; max-height: 60px; object-fit: contain; }
.drawer-close { border: 0; background: var(--white); color: var(--theme-deep); border-radius: 12px; width: 40px; height: 40px; font-size: 28px; }
.drawer-nav { display: grid; gap: 10px; }
.drawer-nav a { color: var(--on-header); background: rgba(255,255,255,.64); border: 1px solid var(--theme-border); border-radius: 16px; text-decoration: none; padding: 12px 14px; font-weight: 800; }
.drawer-nav a.active { background: var(--white); color: var(--theme-deep); }
.drawer-login { margin-top: 18px; width: 100%; }
@media (max-width: 1200px) { .main-nav { gap: 13px; } .main-nav a { font-size: 14px; } .grid-4, .category-grid, .point-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1023px) {
  .header-inner { width: min(100% - 28px, 1280px); min-height: 68px; display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 10px; }
  .mobile-menu-toggle { display: inline-flex; width: 44px; height: 44px; }
  .main-nav { display: none; }
  .site-logo { justify-self: center; }
  .site-logo img { max-width: min(150px, 42vw); max-height: 56px; }
  .header-actions { justify-self: end; }
  .header-actions .main-btn { white-space: nowrap; padding: 10px 16px; }
  .intro-card, .article-hero-grid, .app-panel, .grid-2, .split-grid, .news-grid { grid-template-columns: 1fr; }
  .banner-slide { min-height: 220px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .section { padding: 40px 0; }
  .grid-4, .category-grid, .grid-3, .point-grid { grid-template-columns: 1fr; }
  .intro-card, .card, .zone-card, .info-card, .feature-card, .category-card, .faq-item, .notice, .visual-card, .article-card, .quote-card { padding: 22px; }
  .banner-section { padding: 22px 0 12px; }
  .banner-carousel { border-radius: 20px; }
  .banner-slide { min-height: 150px; padding: 8px; }
  .banner-arrow { width: 36px; height: 36px; font-size: 27px; }
  .banner-prev { left: 10px; }
  .banner-next { right: 10px; }
  .banner-dots { bottom: 10px; }
  .article-media { min-height: 230px; padding: 22px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { padding: 18px 16px; flex-direction: column; }
}
@media (max-width: 390px) {
  .header-inner { width: min(100% - 20px, 1280px); grid-template-columns: 44px minmax(0, 1fr) auto; gap: 8px; }
  .site-logo img { max-width: min(120px, 36vw); max-height: 48px; }
  .header-actions .main-btn { padding: 8px 12px; font-size: 13px; }
}