*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2D6A4F;
  --primary-light:#40916C;
  --primary-lighter:#52B788;
  --primary-container:#D8F3DC;
  --primary-dark:#1B4332;
  --accent:#E9C46A;
  --accent-light:#F4A261;
  --bg:#F8FAF7;
  --surface:#FFFFFF;
  --surface-variant:#F0F4EF;
  --text:#1A1F1C;
  --text-secondary:#5A6560;
  --text-tertiary:#8A958F;
  --text-inverse:#FFFFFF;
  --border:#E0E8E3;
  --divider:#E8EEEA;
  --radius:16px;
  --radius-lg:24px;
  --radius-full:9999px;
  --shadow:0 2px 8px rgba(26,31,28,0.08);
  --shadow-md:0 4px 16px rgba(26,31,28,0.12);
  --shadow-lg:0 8px 32px rgba(26,31,28,0.16);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans JP",sans-serif;
  --max-width:1120px;
  --header-h:72px;
  --ease:cubic-bezier(.4,0,.2,1);
  --tr:.3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h);-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--primary-light)}
ul{list-style:none}
button{font-family:var(--font)}

.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);display:flex;align-items:center;background:transparent;transition:background var(--tr),box-shadow var(--tr)}
.header .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.header--scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 3px rgba(0,0,0,.06)}
.header--solid{background:var(--surface);box-shadow:0 1px 3px rgba(0,0,0,.06)}

.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;transition:color var(--tr)}
.header:not(.header--scrolled):not(.header--solid) .logo{color:var(--text-inverse)}
.header--scrolled .logo,.header--solid .logo{color:var(--primary)}
.logo-icon{width:32px;height:32px;flex-shrink:0}

.nav{display:flex;align-items:center;gap:28px}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:14px;font-weight:500;transition:color var(--tr)}
.header:not(.header--scrolled):not(.header--solid) .nav-links a{color:rgba(255,255,255,.85)}
.header:not(.header--scrolled):not(.header--solid) .nav-links a:hover{color:#fff}
.header--scrolled .nav-links a,.header--solid .nav-links a{color:var(--text-secondary)}
.header--scrolled .nav-links a:hover,.header--solid .nav-links a:hover{color:var(--primary)}

.lang-toggle{display:flex;gap:2px;font-size:13px;font-weight:600}
.lang-toggle a{padding:5px 12px;border-radius:var(--radius-full);transition:background var(--tr),color var(--tr)}
.header:not(.header--scrolled):not(.header--solid) .lang-toggle a{color:rgba(255,255,255,.65)}
.header:not(.header--scrolled):not(.header--solid) .lang-toggle a.active{background:rgba(255,255,255,.18);color:#fff}
.header:not(.header--scrolled):not(.header--solid) .lang-toggle a:hover:not(.active){background:rgba(255,255,255,.1);color:#fff}
.header--scrolled .lang-toggle a,.header--solid .lang-toggle a{color:var(--text-tertiary)}
.header--scrolled .lang-toggle a.active,.header--solid .lang-toggle a.active{background:var(--primary-container);color:var(--primary)}
.header--scrolled .lang-toggle a:hover:not(.active),.header--solid .lang-toggle a:hover:not(.active){background:var(--surface-variant)}

.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:inherit;transition:color var(--tr)}
.header:not(.header--scrolled):not(.header--solid) .mobile-toggle{color:#fff}
.header--scrolled .mobile-toggle,.header--solid .mobile-toggle{color:var(--text)}
.mobile-toggle svg{width:24px;height:24px}

/* ===== Mobile Nav ===== */
.mobile-nav{display:none;position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:opacity var(--tr)}
.mobile-nav.active{opacity:1;pointer-events:all}
.mobile-nav-panel{position:absolute;top:0;right:0;width:280px;height:100%;background:var(--surface);padding:24px;transform:translateX(100%);transition:transform var(--tr);box-shadow:var(--shadow-lg)}
.mobile-nav.active .mobile-nav-panel{transform:translateX(0)}
.mobile-nav-close{display:flex;justify-content:flex-end;margin-bottom:24px}
.mobile-nav-close button{background:none;border:none;cursor:pointer;color:var(--text);padding:8px}
.mobile-nav-close svg{width:24px;height:24px}
.mobile-nav-links{display:flex;flex-direction:column;gap:4px}
.mobile-nav-links a{display:block;padding:12px 16px;font-size:16px;font-weight:500;color:var(--text);border-radius:12px;transition:background var(--tr)}
.mobile-nav-links a:hover{background:var(--surface-variant)}
.mobile-nav-lang{margin-top:24px;padding-top:24px;border-top:1px solid var(--border);display:flex;gap:8px}
.mobile-nav-lang a{padding:8px 16px;border-radius:var(--radius-full);font-size:14px;font-weight:600;color:var(--text-tertiary);transition:background var(--tr),color var(--tr)}
.mobile-nav-lang a.active{background:var(--primary-container);color:var(--primary)}

/* ===== Hero ===== */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:calc(var(--header-h) + 48px) 24px 80px;background:linear-gradient(160deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-light) 100%);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-40%;right:-15%;width:550px;height:550px;background:radial-gradient(circle,rgba(233,196,106,.12) 0%,transparent 65%);border-radius:50%;pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-25%;left:-8%;width:380px;height:380px;background:radial-gradient(circle,rgba(82,183,136,.18) 0%,transparent 65%);border-radius:50%;pointer-events:none}
.hero-content{position:relative;z-index:1}
.hero-icon{width:120px;height:120px;border-radius:28px;margin:0 auto 36px;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:heroFloat 6s ease-in-out infinite}
@keyframes heroFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hero-title{font-size:clamp(2.5rem,6vw,4rem);font-weight:700;color:var(--text-inverse);letter-spacing:-.03em;margin-bottom:16px}
.hero-subtitle{font-size:clamp(1.1rem,2.5vw,1.5rem);font-weight:500;color:rgba(255,255,255,.92);margin-bottom:12px}
.hero-description{font-size:clamp(.95rem,1.5vw,1.1rem);color:rgba(255,255,255,.72);max-width:480px;margin:0 auto;line-height:1.75}
.scroll-indicator{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);animation:scrollBounce 2s ease-in-out infinite}
.scroll-indicator svg{width:24px;height:24px;color:rgba(255,255,255,.5)}
@keyframes scrollBounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-8px)}}

/* ===== Sections ===== */
.section{padding:96px 0}
.section-header{text-align:center;margin-bottom:64px}
.section-label{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--primary);margin-bottom:12px}
.section-title{font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:700;letter-spacing:-.02em;margin-bottom:16px;line-height:1.2}
.section-desc{font-size:1.05rem;color:var(--text-secondary);max-width:560px;margin:0 auto;line-height:1.7}

/* ===== Features ===== */
.features{background:var(--surface)}
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.feature-card{padding:32px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);transition:transform var(--tr),box-shadow var(--tr)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.feature-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;background:var(--primary-container);color:var(--primary);flex-shrink:0}
.feature-icon svg{width:28px;height:28px}
.feature-card h3{font-size:1.1rem;font-weight:650;margin-bottom:8px;letter-spacing:-.01em}
.feature-card p{font-size:.95rem;color:var(--text-secondary);line-height:1.65}

/* ===== Guide / Steps ===== */
.guide{background:var(--surface-variant)}
.steps{display:flex;gap:0;position:relative}
.steps::before{content:"";position:absolute;top:40px;left:calc(12.5% + 28px);right:calc(12.5% + 28px);height:2px;background:var(--border)}
.step{flex:1;text-align:center;padding:0 16px;position:relative}
.step-number{width:80px;height:80px;border-radius:50%;background:var(--surface);border:2.5px solid var(--primary);display:flex;align-items:center;justify-content:center;margin:0 auto 24px;font-size:1.5rem;font-weight:700;color:var(--primary);position:relative;z-index:1;transition:background var(--tr),color var(--tr)}
.step:hover .step-number{background:var(--primary);color:var(--text-inverse)}
.step-content{max-width:260px;margin:0 auto}
.step h3{font-size:1.05rem;font-weight:650;margin-bottom:8px;letter-spacing:-.01em}
.step p{font-size:.93rem;color:var(--text-secondary);line-height:1.65}

/* ===== FAQ ===== */
.faq{background:var(--surface)}
.faq-list{max-width:720px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item:first-child{border-top:1px solid var(--divider)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 4px;background:none;border:none;cursor:pointer;text-align:left;font-size:1.02rem;font-weight:550;color:var(--text);font-family:var(--font);transition:color var(--tr);line-height:1.5}
.faq-question:hover{color:var(--primary)}
.faq-chevron{width:22px;height:22px;color:var(--text-tertiary);transition:transform .35s var(--ease);flex-shrink:0}
.faq-item.active .faq-chevron{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-answer-inner{padding:0 4px 22px;font-size:.95rem;color:var(--text-secondary);line-height:1.75}

/* ===== Contact ===== */
.contact{background:linear-gradient(160deg,var(--primary-dark),var(--primary));color:var(--text-inverse);text-align:center}
.contact .section-label{color:rgba(255,255,255,.6)}
.contact .section-title{color:var(--text-inverse)}
.contact .section-desc{color:rgba(255,255,255,.75)}
.contact-email{display:inline-flex;align-items:center;gap:12px;padding:16px 32px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-full);color:var(--text-inverse);font-size:1.05rem;font-weight:500;transition:background var(--tr),transform var(--tr)}
.contact-email:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);color:var(--text-inverse)}
.contact-email svg{width:20px;height:20px;flex-shrink:0}
.contact-note{margin-top:16px;font-size:.88rem;color:rgba(255,255,255,.55)}

/* ===== Footer ===== */
.footer{background:var(--primary-dark);color:rgba(255,255,255,.6);padding:48px 0 32px}
.footer-content{display:flex;justify-content:space-between;align-items:start;margin-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-inverse);font-weight:700;font-size:16px;margin-bottom:8px}
.footer-brand svg{width:28px;height:28px}
.footer-desc{font-size:14px;max-width:300px;line-height:1.6;color:rgba(255,255,255,.45)}
.footer-links-group{display:flex;gap:48px}
.footer-links-title{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:rgba(255,255,255,.4);margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.55);transition:color var(--tr)}
.footer-links a:hover{color:rgba(255,255,255,.9)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:13px}
.footer-lang{display:flex;gap:4px}
.footer-lang a{font-size:13px;color:rgba(255,255,255,.4);padding:4px 10px;border-radius:var(--radius-full);transition:background var(--tr),color var(--tr)}
.footer-lang a.active{color:rgba(255,255,255,.9);background:rgba(255,255,255,.1)}
.footer-lang a:hover:not(.active){color:rgba(255,255,255,.6)}

/* ===== Privacy Page ===== */
.page-header{padding:calc(var(--header-h) + 48px) 0 40px;background:var(--surface);border-bottom:1px solid var(--border)}
.page-header h1{font-size:2rem;font-weight:700;letter-spacing:-.02em}
.page-header p{color:var(--text-secondary);margin-top:8px;font-size:1.02rem}
.page-content{padding:64px 0 96px}
.coming-soon{text-align:center;padding:80px 24px}
.coming-soon-icon{width:80px;height:80px;border-radius:50%;background:var(--primary-container);display:flex;align-items:center;justify-content:center;margin:0 auto 24px;color:var(--primary)}
.coming-soon-icon svg{width:36px;height:36px}
.coming-soon h2{font-size:1.5rem;font-weight:700;margin-bottom:12px;letter-spacing:-.01em}
.coming-soon p{color:var(--text-secondary);max-width:520px;margin:0 auto;line-height:1.75;font-size:.98rem}
.coming-soon .contact-email{margin-top:32px;background:var(--primary);border-color:var(--primary);color:var(--text-inverse)}
.coming-soon .contact-email:hover{background:var(--primary-light)}

/* ===== Policy Content ===== */
.policy-content h2{font-size:1.25rem;font-weight:700;margin-top:40px;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border);color:var(--text);letter-spacing:-.01em}
.policy-content h3{font-size:1.08rem;font-weight:600;margin-top:28px;margin-bottom:12px;color:var(--text)}
.policy-content p{margin-bottom:16px;line-height:1.8;color:var(--text-secondary);font-size:.98rem}
.policy-content ul{margin-bottom:16px;padding-left:24px;list-style:disc}
.policy-content li{margin-bottom:8px;line-height:1.75;color:var(--text-secondary);font-size:.98rem}
.policy-content a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.policy-content strong{color:var(--text);font-weight:600}
.policy-content .policy-note{background:var(--surface-variant);border-radius:var(--radius);padding:20px 24px;margin:24px 0;font-size:.95rem;line-height:1.7;color:var(--text-secondary)}

/* ===== Animations ===== */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.fade-in.visible{opacity:1;transform:translateY(0)}
.fade-in-d1{transition-delay:.1s}
.fade-in-d2{transition-delay:.2s}
.fade-in-d3{transition-delay:.3s}
.fade-in-d4{transition-delay:.35s}

/* ===== Responsive ===== */
@media(max-width:768px){
  :root{--header-h:60px}
  .nav-links,.lang-toggle{display:none}
  .mobile-toggle{display:block}
  .mobile-nav{display:block}
  .section{padding:64px 0}
  .section-header{margin-bottom:44px}
  .features-grid{grid-template-columns:1fr}
  .feature-card{padding:24px}
  .steps{flex-direction:column;gap:0}
  .steps::before{top:0;bottom:0;left:39px;right:auto;width:2px;height:auto}
  .step{display:flex;text-align:left;padding:0;gap:16px}
  .step:not(:last-child){padding-bottom:32px}
  .step-number{width:56px;height:56px;font-size:1.2rem;margin:0;flex-shrink:0}
  .step-content{padding-top:12px;max-width:none}
  .faq-question{font-size:.97rem;padding:18px 2px}
  .footer-content{flex-direction:column;gap:32px}
  .footer-bottom{flex-direction:column;gap:16px;text-align:center}
  .hero-icon{width:96px;height:96px;border-radius:24px}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero-icon{width:84px;height:84px;border-radius:22px;margin-bottom:28px}
  .contact-email{font-size:.95rem;padding:14px 24px}
}

/* ===== Print ===== */
@media print{
  .header,.scroll-indicator,.mobile-nav,.mobile-toggle,.contact{display:none}
  .hero{min-height:auto;padding:80px 24px 40px}
  .section{padding:40px 0}
  .fade-in{opacity:1;transform:none}
  body{background:#fff}
}