@charset "utf-8";

:root {
    color-scheme: light;
    --landing-bg: #f5f8f6;
    --landing-surface: #ffffff;
    --landing-surface-soft: #edf3ef;
    --landing-border: #dce6df;
    --landing-text: #17211b;
    --landing-muted: #66736b;
    --landing-accent: #23834b;
    --landing-accent-strong: #176b3b;
    --landing-accent-soft: #e4f2e9;
    --landing-accent-text: #ffffff;
    --landing-shadow: 0 16px 42px rgba(25, 52, 36, .08);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --landing-bg: #0b1110;
    --landing-surface: #131b18;
    --landing-surface-soft: #19231e;
    --landing-border: #2a3931;
    --landing-text: #e7eee9;
    --landing-muted: #a2b1a8;
    --landing-accent: #66c486;
    --landing-accent-strong: #8bd5a4;
    --landing-accent-soft: #1a3324;
    --landing-accent-text: #0b1110;
    --landing-shadow: 0 18px 48px rgba(0, 0, 0, .22);
}

html { min-height: 100%; background: var(--landing-bg); }
body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    background: var(--landing-bg);
    color: var(--landing-text);
    font-family: system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
    font-size: 15px;
    line-height: 1.65;
    transition: background-color .2s ease, color .2s ease;
}

body *, body *::before, body *::after { box-sizing: border-box; }
body a { color: inherit; text-decoration: none; }
body a:focus-visible { outline: 3px solid var(--landing-accent); outline-offset: 4px; }
body p { margin: 0; word-break: keep-all; }
body h1, body h2, body h3 { margin: 0; font-family: inherit; line-height: 1.3; }
body svg { width: 1.25em; height: 1.25em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.topbar { position: relative; z-index: 1; border-bottom: 1px solid var(--landing-border); background: var(--landing-surface); }
.topbar-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.logo img { display: block; width: auto; height: auto; max-width: 180px; max-height: 44px; }
.top-nav { display: flex; align-items: center; gap: 28px; color: var(--landing-muted); font-size: 13px; font-weight: 650; }
.top-nav a:hover, .footer-links a:hover { color: var(--landing-accent); }

.hero { position: relative; overflow: hidden; padding: 88px 0 76px; border-bottom: 1px solid var(--landing-border); background: radial-gradient(ellipse at 75% 35%, var(--landing-accent-soft), transparent 42%), var(--landing-bg); }
.hero::after { position: absolute; top: 34px; right: max(5vw, calc((100vw - 1120px) / 2)); width: 168px; height: 168px; border: 1px solid var(--landing-border); border-radius: 50%; content: ""; opacity: .55; pointer-events: none; }
.hero .container { position: relative; z-index: 1; }
.hero h1 { max-width: 780px; font-size: clamp(38px, 6vw, 66px); font-weight: 850; letter-spacing: -.065em; line-height: 1.12; }
.hero h1 span { color: var(--landing-accent); }
.lead { max-width: 780px; margin-top: 23px !important; color: var(--landing-muted); font-size: clamp(15px, 1.8vw, 18px); line-height: 1.9; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 22px; border: 1px solid transparent; border-radius: 9px; font-size: 15px; font-weight: 750; transition: transform .18s ease, background-color .18s ease, box-shadow .18s ease; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--landing-accent); color: var(--landing-accent-text); box-shadow: 0 8px 20px color-mix(in srgb, var(--landing-accent) 25%, transparent); }
.btn.primary:hover { background: var(--landing-accent-strong); }
.btn.primary svg { width: 18px; height: 18px; }
.hero-caption { margin-top: 16px !important; color: var(--landing-muted); font-size: 12px; }

.section { padding: 66px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.section-heading h2, .faq-head { font-size: 25px; font-weight: 800; letter-spacing: -.045em; }
.section-heading p { color: var(--landing-muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.card { min-height: 224px; display: flex; flex-direction: column; align-items: flex-start; padding: 22px; border: 1px solid var(--landing-border); border-radius: 12px; background: var(--landing-surface); box-shadow: 0 3px 12px rgba(20, 40, 28, .025); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.card:hover { transform: translateY(-4px); border-color: var(--landing-accent); box-shadow: var(--landing-shadow); }
.card-icon { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 17px; border-radius: 10px; background: var(--landing-accent-soft); color: var(--landing-accent); }
.card-icon svg { width: 20px; height: 20px; }
.card h3 { font-size: 16px; font-weight: 780; letter-spacing: -.025em; }
.card p { margin-top: 8px; color: var(--landing-muted); font-size: 13px; line-height: 1.7; }
.card-bottom { display: flex; align-items: center; gap: 8px; margin-top: auto; padding-top: 18px; color: var(--landing-accent); font-size: 12px; font-weight: 750; }
.arrow { font-size: 21px; line-height: 1; transition: transform .18s ease; }
.card:hover .arrow { transform: translateX(3px); }
.notice { display: flex; align-items: flex-start; gap: 15px; margin-top: 22px; padding: 19px 21px; border: 1px solid color-mix(in srgb, var(--landing-accent) 28%, var(--landing-border)); border-radius: 10px; background: var(--landing-accent-soft); color: var(--landing-muted); font-size: 13px; }
.notice-icon { flex: 0 0 auto; display: grid; width: 26px; height: 26px; place-items: center; color: var(--landing-accent); }
.notice-icon svg { width: 22px; height: 22px; }
.notice p + p { margin-top: 5px; }
.notice strong, .notice a { color: var(--landing-text); }
.notice a, .faq a, .bookmark a { color: var(--landing-accent-strong); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

.info-area { padding-top: 0; }
.faq-box { overflow: hidden; border: 1px solid var(--landing-border); border-radius: 12px; background: var(--landing-surface); }
.faq-head { padding: 21px 24px; border-bottom: 1px solid var(--landing-border); background: var(--landing-surface-soft); }
.faq article { padding: 21px 24px; }
.faq article + article { border-top: 1px solid var(--landing-border); }
.faq-title { display: flex; align-items: center; gap: 11px; }
.faq-title h3 { font-size: 15px; font-weight: 750; }
.question { width: 23px; height: 23px; display: grid; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--landing-accent-soft); color: var(--landing-accent); font-size: 13px; font-weight: 800; }
.faq article p { margin: 9px 0 0 34px; color: var(--landing-muted); font-size: 13px; }
.bookmark { display: flex; align-items: flex-start; gap: 11px; margin-top: 17px !important; padding: 17px 20px; border: 1px dashed var(--landing-border); border-radius: 10px; color: var(--landing-muted); font-size: 13px; }
.small-icon { flex: 0 0 auto; display: grid; width: 22px; height: 22px; place-items: center; color: var(--landing-accent); }
.small-icon svg { width: 17px; height: 17px; }
.bookmark strong { color: var(--landing-text); }

.footer { margin-top: auto; border-top: 1px solid var(--landing-border); background: var(--landing-surface); }
.footer-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--landing-muted); font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 21px; }

@media (max-width: 760px) {
    .container { width: min(100% - 36px, 560px); }
    .topbar-inner { min-height: 64px; }
    .logo img { max-width: 150px; max-height: 34px; }
    .top-nav { gap: 15px; font-size: 12px; }
    .top-nav a:last-child { display: none; }
    .hero { padding: 65px 0 57px; }
    .hero::after { top: 15px; right: -67px; width: 145px; height: 145px; }
    .hero h1 { max-width: 500px; }
    .lead br { display: none; }
    .section { padding: 48px 0; }
    .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
    .card { min-height: 210px; padding: 17px; }
    .card-icon { margin-bottom: 13px; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 5px; }
    .info-area { padding-top: 0; }
}

@media (max-width: 420px) {
    .container { width: calc(100% - 30px); }
    .top-nav { gap: 11px; font-size: 11px; }
    .hero { padding: 54px 0 48px; }
    .hero h1 { font-size: 38px; }
    .lead { font-size: 14px; }
    .btn { width: 100%; }
    .cards { grid-template-columns: 1fr; }
    .card { min-height: 188px; }
    .notice { padding: 15px; }
    .faq-head, .faq article { padding-right: 17px; padding-left: 17px; }
    .faq article p { margin-left: 0; }
    .footer-inner { align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; padding: 15px 0; }
    .footer-links { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}