:root{--brand: #90c9aa;--brand-deep: #5f9e82;--brand-ink: #344b50;--brand-soft: #f4faf7;--page: #ffffff;--muted: #6b7a7e;--line: rgba(52, 75, 80, .12);--shadow: 0 18px 48px rgba(52, 75, 80, .1);--radius: 18px;--max: 1080px;--font-display: "Fraunces", "Songti SC", "Noto Serif SC", serif;--font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;--ease: cubic-bezier(.22, 1, .36, 1)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--brand-ink);font-family:var(--font-body);font-weight:400;line-height:1.65;background:var(--page);-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font:inherit}.site-header{position:sticky;top:0;z-index:40;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffd1;border-bottom:1px solid transparent;transition:border-color .3s var(--ease),background .3s var(--ease)}.site-header.is-scrolled{border-bottom-color:var(--line);background:#ffffffeb}.site-header__inner,.site-footer__inner,.section-inner{width:min(100% - 2.5rem,var(--max));margin-inline:auto}.site-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:4.25rem;gap:1rem}.brand-lockup{display:inline-flex;align-items:center;gap:.7rem}.brand-lockup__mark{width:2.25rem;height:2.25rem;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px #90c9aa59}.brand-lockup__name{font-family:var(--font-display);font-size:1.15rem;font-weight:600;letter-spacing:.02em}.nav-links{display:flex;align-items:center;gap:1.25rem;font-size:.95rem;color:var(--muted)}.nav-links a:hover{color:var(--brand-ink)}.site-footer{margin-top:4rem;padding:2.75rem 0 2.25rem;background:linear-gradient(180deg,#f7fcf9,#eef7f2);border-top:1px solid var(--line)}.site-footer__inner{display:grid;gap:1.5rem}.site-footer__brand{font-family:var(--font-display);font-size:1.35rem;font-weight:600}.site-footer__meta{color:var(--muted);font-size:.9rem}.site-footer__links{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;font-size:.92rem}.site-footer__links a:hover{color:var(--brand-deep)}.site-footer__icp a{color:var(--muted)}.site-footer__icp a:hover{color:var(--brand-ink)}.site-footer__meta a{color:var(--brand-deep)}.site-footer__meta a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:3rem;padding:.7rem 1.35rem;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease)}.btn:hover{transform:translateY(-1px)}.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 28px #90c9aa61}.btn--primary:hover{background:var(--brand-deep)}.btn--ghost{background:#ffffff8c;border-color:#90c9aa8c;color:var(--brand-ink)}.btn--ghost:hover{background:#fff;border-color:var(--brand)}.btn--disabled,.btn[aria-disabled=true]{cursor:not-allowed;opacity:.72;transform:none;box-shadow:none}.btn--disabled:hover,.btn[aria-disabled=true]:hover{transform:none;background:var(--brand)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:720px){.nav-links{gap:.85rem;font-size:.88rem}.site-header__inner,.site-footer__inner,.section-inner{width:min(100% - 1.5rem,var(--max))}}