* { box-sizing: border-box; }
:root { --primary: #269CD7; --black: #111111; --deep: #1C1C1C; --mid: #2B2B2B; --light: #F5F5F5; --white: #ffffff; --muted: #666666; --line: #e7e7e7; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--black); background: var(--light); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { background: linear-gradient(135deg, var(--primary), #145e86); color: var(--white); position: sticky; top: 0; z-index: 20; box-shadow: 0 8px 24px rgba(0,0,0,.14); }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.header-inner { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; gap: 20px; }
.logo img { width: 132px; max-height: 48px; object-fit: contain; }
.nav { display: none; gap: 8px; align-items: center; }
.nav a { padding: 10px 14px; border-radius: 18px; font-weight: 700; color: #ffffff; }
.nav a.active, .nav a:hover { background: rgba(255,255,255,.18); }
.mobile-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(0,0,0,.12); }
.mobile-nav a { text-align: center; padding: 10px 4px; font-size: 13px; color: #fff; font-weight: 700; }
.hero, .banner { background: radial-gradient(circle at 20% 10%, rgba(38,156,215,.32), transparent 34%), linear-gradient(135deg, #111111 0%, #1C1C1C 58%, #174b68 100%); color: #ffffff; padding: 44px 0 36px; }
.banner-grid { display: grid; gap: 26px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(38,156,215,.18); color: #d9f3ff; border: 1px solid rgba(38,156,215,.45); padding: 8px 12px; border-radius: 999px; font-size: 13px; font-weight: 700; }
h1 { margin: 14px 0 14px; font-size: clamp(30px, 8vw, 56px); line-height: 1.1; letter-spacing: -1px; }
h2 { font-size: clamp(24px, 4vw, 36px); line-height: 1.2; margin: 0 0 16px; }
h3 { margin: 0 0 10px; font-size: 20px; }
p { margin: 0 0 14px; }
.hero p, .banner p { color: #e9eef2; font-size: 17px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.tag { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); padding: 8px 12px; border-radius: 999px; font-size: 13px; font-weight: 700; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 22px; border-radius: 18px; background: var(--primary); color: #ffffff; font-weight: 800; box-shadow: 0 12px 24px rgba(38,156,215,.26); border: 0; cursor: pointer; }
.btn:hover { transform: translateY(-1px); filter: brightness(.96); }
.hero-image { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 28px; padding: 16px; box-shadow: 0 24px 60px rgba(0,0,0,.22); }
section { padding: 52px 0; }
.section-head { max-width: 780px; margin-bottom: 22px; }
.section-head p { color: var(--muted); }
.grid { display: grid; gap: 18px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: 0 10px 28px rgba(0,0,0,.06); }
.card strong { color: var(--primary); }
.notice { background: #ffffff; border-left: 6px solid var(--primary); border-radius: 18px; padding: 18px 20px; box-shadow: 0 10px 28px rgba(0,0,0,.06); color: #333333; }
.notice.dark { background: var(--deep); color: #ffffff; }
.notice.dark p { color: #eaeaea; }
.faq { display: grid; gap: 14px; }
.faq-item { background: #ffffff; border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.faq-item h3 { color: var(--black); }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { position: relative; padding-left: 58px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 14px; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 800; }
.link-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.link-row a { color: var(--primary); font-weight: 800; }
.footer { background: linear-gradient(135deg, #174b68, var(--primary)); color: #ffffff; padding: 42px 0 20px; }
.footer-grid { display: grid; gap: 24px; }
.footer a { display: block; color: #f4fbff; margin: 7px 0; }
.footer p { color: #edf8ff; }
.footer-logo { width: 130px; margin-bottom: 14px; }
.footer-bottom { margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.18); font-size: 14px; color: #edf8ff; }
@media (min-width: 768px) { .nav { display: flex; } .mobile-nav { display: none; } .banner-grid { grid-template-columns: 1.12fr .88fr; } .grid.two { grid-template-columns: repeat(2, 1fr); } .grid.three { grid-template-columns: repeat(3, 1fr); } .footer-grid { grid-template-columns: 1.3fr .7fr 1.2fr; } }
@media (min-width: 1024px) { section { padding: 68px 0; } .hero, .banner { padding: 72px 0 64px; } .card { padding: 26px; } .logo img { width: 150px; } }