@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&family=Shippori+Mincho:wght@400;500;600;700&display=swap");:root{--ink:#141414;--ink-muted:#4a4a4a;--ink-light:#7a7a7a;--bg:#f3f2ef;--bg-elevated:#fafaf8;--bg-card:#ffffff;--accent:#1f4b6e;--accent-soft:#e6eef4;--accent-line:#c45c4a;--border:#ddd9d2;--radius:2px;--shadow:0 8px 32px rgba(20,20,20,0.06);--font-display:"Shippori Mincho","Hiragino Mincho ProN",serif;--font-body:"Noto Sans JP","Hiragino Sans",sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-body);font-size:16px;line-height:1.75;color:var(--ink);background:radial-gradient(ellipse 120% 80% at 10% -10%,rgba(31,75,110,.07),transparent 50%),radial-gradient(ellipse 90% 60% at 100% 0,rgba(196,92,74,.05),transparent 45%),linear-gradient(180deg,#f6f5f2 0,var(--bg) 40%,#efeee9 100%);background-attachment:fixed;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}.wrap{max-width:1120px;width:100%;margin:0 auto;padding:0 28px}.section-label{font-size:.72rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}.section-title{font-family:var(--font-display);font-size:clamp(1.75rem,3.5vw,2.35rem);font-weight:500;color:var(--ink);margin-bottom:16px;letter-spacing:.02em;line-height:1.35}.section-desc{color:var(--ink-muted);margin-bottom:40px;max-width:540px;font-size:.95rem}.main-content{min-height:60vh}.demo-main{display:block;width:100%;min-height:100vh;margin:0;padding:0}.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:18px 0;background:rgba(243,242,239,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}.nav.scrolled{border-color:var(--border)}.nav .wrap{display:flex;align-items:center;justify-content:space-between}.logo{font-family:var(--font-display);font-size:1.05rem;font-weight:600;color:var(--ink);text-decoration:none;letter-spacing:.08em;line-height:1.25}.logo-ja{display:block}.nav-links{display:flex;gap:26px;list-style:none;align-items:center}.nav-links a{font-size:.82rem;font-weight:500;color:var(--ink-muted);text-decoration:none;letter-spacing:.06em;transition:color .2s}.nav-links a:hover{color:var(--accent)}.nav-cv{font-weight:600;color:var(--accent)!important}.nav-cv:hover{color:var(--ink)!important}.nav-access{font-weight:500;opacity:.85}.nav-toggle{display:none;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer;padding:8px}.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);transition:transform .2s,opacity .2s}.nav-toggle span.open:first-child{transform:rotate(45deg) translate(5px,5px)}.nav-toggle span.open:nth-child(2){opacity:0}.nav-toggle span.open:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media (max-width:720px){.nav-toggle{display:flex}.nav-links{position:fixed;top:58px;left:0;right:0;flex-direction:column;align-items:flex-start;background:rgba(250,250,248,.98);padding:24px 28px 28px;gap:16px;border-bottom:1px solid var(--border);transform:translateY(-12px);opacity:0;pointer-events:none;transition:transform .2s,opacity .2s}.nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}.nav-links a{font-size:.95rem}}.footer{padding:28px 0 36px;border-top:1px solid var(--border)}.footer-inner{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap}.footer-brand{font-family:var(--font-display);font-size:.95rem;font-weight:600;color:var(--ink);letter-spacing:.06em}.footer p{font-size:.8rem;color:var(--ink-light);letter-spacing:.04em}