body[data-page=prototype-index]{margin:0;background:linear-gradient(180deg,var(--color-focus-soft) 0%,var(--color-background) 100%);color:var(--color-foreground)}.page{width:min(1440px,calc(100vw - 32px));margin:0 auto;padding:32px 0 56px}.hero{margin-bottom:28px;padding:28px 32px;border:1px solid var(--color-border);border-radius:24px;background:#ffffffe0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:var(--shadow-md)}.hero h1{margin:0 0 10px;font-size:30px;line-height:1.2}.hero p{margin:0;font-size:var(--text-base);line-height:1.8;color:var(--color-text-muted)}.nav{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;margin:20px 0 0}.nav a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 12px;border:1px solid var(--color-border);border-radius:var(--radius-round);background:var(--color-surface);color:var(--color-foreground);text-decoration:none;font-size:var(--text-base);transition:all .2s ease}.nav a:hover{border-color:var(--color-focus);color:var(--color-focus);transform:translateY(-1px)}.section{margin-bottom:24px;padding:20px;border:1px solid var(--color-border);border-radius:24px;background:var(--color-surface);box-shadow:var(--shadow-md)}.section-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.section-title{margin:0;font-size:20px}.section-desc{margin:6px 0 0;font-size:var(--text-sm);color:var(--color-text-muted)}.section-link{color:var(--color-focus);font-size:var(--text-sm);text-decoration:none;white-space:nowrap}iframe{display:block;width:100%;height:1024px;border:1px solid var(--color-border);border-radius:18px;background:var(--color-surface)}@media(max-width:1100px){.nav{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:720px){.page{width:min(100vw - 20px,1440px);padding:20px 0 40px}.hero,.section{padding:16px;border-radius:18px}.nav{grid-template-columns:repeat(2,minmax(0,1fr))}.section-header{flex-direction:column;align-items:flex-start}iframe{height:820px;border-radius:14px}}