*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}:root{--navy:#1a3a6b;--navy-dark:#0f2448;--navy-light:#2a4f8f;--navy-mid:#1e3d72;--gold:#c8a96e;--gold-light:#d9bb88;--gold-pale:#fdf6e8;--white:#fff;--gray-50:#f8f9fb;--gray-100:#eef0f4;--gray-300:#c8cdd6;--gray-400:#9099aa;--gray-600:#4a5568;--gray-700:#374151;--gray-800:#1a202c;--red:#e53e3e;--green:#276749;--text:#2d3748;--shadow-sm:0 1px 3px #0000001f,0 1px 2px #00000014;--shadow-md:0 4px 16px #0000001f;--shadow-lg:0 8px 32px #00000026}body{color:var(--text);font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;font-size:16px;line-height:1.8}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}h1,h2,h3,h4{letter-spacing:.02em;font-weight:700;line-height:1.4}.section-label{letter-spacing:.2em;color:var(--navy);text-transform:uppercase;margin-bottom:8px;font-size:11px;font-weight:700}.section-title{color:var(--navy-dark);margin-bottom:16px;font-size:clamp(22px,3vw,34px);font-weight:700}.section-lead{color:var(--gray-600);margin-bottom:48px;font-size:16px;line-height:1.9}.container{max-width:1100px;margin:0 auto;padding:0 24px}.section{padding:80px 0}.section.alt{background:var(--gray-50)}.btn{cursor:pointer;letter-spacing:.03em;border:none;border-radius:4px;align-items:center;gap:8px;padding:14px 36px;font-family:inherit;font-size:16px;font-weight:700;transition:all .2s;display:inline-flex}.btn-primary{background:var(--gold);color:var(--navy-dark)}.btn-primary:hover{background:var(--gold-light);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-outline{color:var(--white);background:0 0;border:1px solid #fff6}.btn-outline:hover{border-color:var(--gold);color:var(--gold);background:#ffffff1a}.btn-lg{padding:18px 52px;font-size:17px}.header{background:var(--navy);z-index:200;height:68px;position:sticky;top:0;box-shadow:0 2px 12px #0000004d}.header-inner{justify-content:space-between;align-items:center;max-width:1200px;height:100%;margin:0 auto;padding:0 24px;display:flex}.logo{color:var(--white);letter-spacing:.04em;align-items:center;gap:10px;font-size:17px;font-weight:700;display:flex}.logo-mark{background:var(--gold);color:var(--navy-dark);border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;font-weight:900;display:flex}.logo span{color:var(--gold)}.header-nav{align-items:center;gap:28px;display:flex}.header-nav a{color:#ffffffbf;font-size:14px;transition:color .2s}.header-nav a:hover{color:var(--gold)}.header-cta{background:var(--gold);color:var(--navy-dark);white-space:nowrap;border-radius:4px;padding:9px 22px;font-size:14px;font-weight:700;transition:background .2s}.header-cta:hover{background:var(--gold-light)}.header-login{white-space:nowrap;border:1px solid #ffffff59;border-radius:4px;padding:7px 16px;font-size:14px;transition:all .2s;color:#fffc!important}.header-login:hover{border-color:var(--gold);color:var(--gold)!important}.hamburger{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:5px;padding:4px;display:none}.hamburger span{background:var(--white);border-radius:2px;width:24px;height:2px;transition:all .3s;display:block}.mobile-nav{background:var(--navy-dark);z-index:199;box-shadow:var(--shadow-lg);flex-direction:column;gap:16px;padding:24px;display:none;position:fixed;top:68px;left:0;right:0}.mobile-nav a{color:#ffffffd9;border-bottom:1px solid #ffffff1a;padding:12px 0;font-size:16px}.mobile-nav .mobile-cta{background:var(--gold);color:var(--navy-dark);text-align:center;border-bottom:none;border-radius:4px;margin-top:8px;padding:14px;font-size:16px;font-weight:700}.mobile-nav.open{display:flex}.hero{background:linear-gradient(135deg,var(--navy-dark)0%,var(--navy)60%,var(--navy-light)100%);color:var(--white);min-height:580px;padding:72px 0 0;position:relative;overflow:hidden}.hero:before{content:"";border:70px solid #c8a96e12;border-radius:50%;width:500px;height:500px;position:absolute;top:-80px;right:-80px}.hero-inner{z-index:1;grid-template-columns:1fr 420px;align-items:flex-end;gap:48px;display:grid;position:relative}.hero-content{padding-bottom:64px}.hero-badges{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}.hero-badge{color:var(--gold);letter-spacing:.08em;border:1px solid #c8a96e80;border-radius:2px;padding:4px 12px;font-size:12px;display:inline-block}.hero h1{margin-bottom:20px;font-size:clamp(26px,3.8vw,46px);line-height:1.35}.hero h1 .em{color:var(--gold)}.hero-sub{color:#fffc;max-width:500px;margin-bottom:28px;font-size:16px;line-height:1.9}.hero-notice{border-left:3px solid var(--gold);color:#ffffffe6;background:#c8a96e1f;margin-bottom:36px;padding:14px 18px;font-size:14px;line-height:1.6}.hero-notice strong{color:var(--gold)}.hero-ctas{flex-wrap:wrap;gap:12px;display:flex}.hero-image{align-self:flex-end}.hero-img-wrap{background:#ffffff0a;border:1px solid #ffffff14;border-bottom:none;border-radius:12px 12px 0 0;overflow:hidden}.hero-stats{border-top:1px solid #ffffff1f;margin-top:48px;display:flex}.stat-item{text-align:center;border-right:1px solid #ffffff1a;flex:1;padding:24px 20px}.stat-item:last-child{border-right:none}.stat-num{color:var(--gold);font-size:32px;font-weight:700;line-height:1;display:block}.stat-label{color:#ffffff8c;letter-spacing:.05em;margin-top:4px;font-size:11px;display:block}.pain-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.pain-card{background:var(--white);border:1px solid var(--gray-100);border-top:3px solid var(--navy);box-shadow:var(--shadow-sm);border-radius:0 0 4px 4px;padding:32px 24px}.pain-icon{margin-bottom:16px}.pain-q{color:var(--navy);letter-spacing:.1em;margin-bottom:10px;font-size:12px;font-weight:700}.pain-card p{color:var(--gray-600);font-size:14px;line-height:1.8}.legal-notice{background:var(--gold-pale);color:#7a6030;border:1px solid #c8a96e66;border-radius:6px;margin:48px 0 0;padding:20px 24px;font-size:13px;line-height:1.7}.legal-notice strong{color:#5a4020}.service-grid{grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px;display:grid}.service-card{background:var(--white);border:1px solid var(--gray-100);box-shadow:var(--shadow-sm);border-radius:6px;gap:18px;padding:32px;transition:box-shadow .2s;display:flex}.service-card:hover{box-shadow:var(--shadow-md)}.service-card-icon{background:var(--navy);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.service-card h3{color:var(--navy-dark);margin-bottom:8px;font-size:16px}.service-card p{color:var(--gray-600);font-size:14px;line-height:1.7}.koseki-types{grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px;display:grid}.koseki-type-card{background:var(--white);border:1px solid var(--gray-100);box-shadow:var(--shadow-sm);border-radius:6px;padding:28px}.koseki-type-card h3{color:var(--navy-dark);border-bottom:2px solid var(--navy);margin-bottom:10px;padding-bottom:10px;font-size:15px}.koseki-type-card p{color:var(--gray-600);font-size:13px;line-height:1.8}.koseki-type-card .fee{background:var(--gray-50);color:var(--gray-600);border-radius:3px;margin-top:10px;padding:4px 10px;font-size:12px;display:inline-block}.koseki-explainer{background:var(--white);border:1px solid var(--gray-100);box-shadow:var(--shadow-sm);border-radius:6px;padding:40px}.koseki-explainer h3{color:var(--navy-dark);margin-bottom:16px;font-size:18px}.koseki-explainer p{color:var(--gray-600);margin-bottom:16px;font-size:15px;line-height:1.9}.koseki-note{background:var(--gray-50);border-left:3px solid var(--navy);color:var(--gray-600);margin-top:20px;padding:14px 18px;font-size:14px;line-height:1.7}.comparison-wrap{overflow-x:auto}.comparison-table{border-collapse:collapse;width:100%;font-size:15px}.comparison-table th{background:var(--navy);color:var(--white);text-align:center;white-space:nowrap;padding:16px 20px;font-weight:700}.comparison-table th:first-child{background:var(--gray-100);color:var(--gray-700);text-align:left}.comparison-table th.highlight{background:var(--gold);color:var(--navy-dark)}.comparison-table td{border-bottom:1px solid var(--gray-100);vertical-align:middle;padding:16px 20px}.comparison-table tr:last-child td{border-bottom:none}.comparison-table td:first-child{color:var(--gray-700);background:var(--gray-50);font-weight:600}.comparison-table td:not(:first-child){text-align:center}.comparison-table td.highlight-col{background:#c8a96e0f}.comparison-table tr:hover td{background:#1a3a6b05}.comparison-table tr:hover td:first-child{background:var(--gray-100)}.comparison-table tr:hover td.highlight-col{background:#c8a96e1a}.badge-good{color:var(--green);justify-content:center;align-items:center;gap:4px;font-size:14px;font-weight:700;display:inline-flex}.badge-bad{color:#9b5555;justify-content:center;align-items:center;gap:4px;font-size:14px;display:inline-flex}.badge-mid{color:var(--gray-600);font-size:14px}.comparison-caption{text-align:center;background:var(--gold-pale);color:#6a4f20;border:1px solid #c8a96e4d;border-radius:6px;margin-top:32px;padding:24px 32px;font-size:15px;line-height:1.8}.comparison-caption strong{color:var(--navy-dark)}.flow-steps{grid-template-columns:repeat(4,1fr);gap:0;display:grid;position:relative}.flow-steps:before{content:"";background:linear-gradient(90deg,var(--navy),var(--navy-light));height:2px;position:absolute;top:40px;left:calc(12.5% + 20px);right:calc(12.5% + 20px)}.flow-step{text-align:center;padding:0 16px}.flow-num{background:var(--navy);width:80px;height:80px;color:var(--white);z-index:1;box-shadow:var(--shadow-md);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 20px;font-size:26px;font-weight:700;display:flex;position:relative}.flow-title{color:var(--navy-dark);margin-bottom:8px;font-size:15px;font-weight:700}.flow-desc{color:var(--gray-600);font-size:13px;line-height:1.6}.flow-duration{background:var(--gray-100);color:var(--navy);border-radius:10px;margin-top:8px;padding:2px 10px;font-size:12px;font-weight:600;display:inline-block}.pricing-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.pricing-card{border:1px solid var(--gray-100);text-align:center;background:var(--white);box-shadow:var(--shadow-sm);border-radius:6px;padding:40px 28px;transition:box-shadow .2s;position:relative}.pricing-card:hover{box-shadow:var(--shadow-md)}.pricing-card.featured{border:2px solid var(--navy);box-shadow:var(--shadow-md)}.pricing-badge{background:var(--navy);color:var(--white);white-space:nowrap;letter-spacing:.05em;border-radius:20px;padding:4px 20px;font-size:11px;font-weight:700;position:absolute;top:-14px;left:50%;transform:translate(-50%)}.plan-name{color:var(--gray-400);letter-spacing:.1em;margin-bottom:8px;font-size:13px}.plan-price{color:var(--navy-dark);font-size:38px;font-weight:700;line-height:1}.plan-price span{color:var(--gray-600);font-size:16px;font-weight:400}.plan-note{color:var(--gray-400);margin-top:4px;margin-bottom:24px;font-size:12px}.plan-divider{background:var(--gray-100);height:1px;margin-bottom:20px}.plan-features{text-align:left;list-style:none}.plan-features li{border-bottom:1px solid var(--gray-100);color:var(--gray-700);gap:8px;padding:9px 0;font-size:14px;display:flex}.plan-features li:last-child{border-bottom:none}.plan-features li:before{content:"✓";color:var(--gold);flex-shrink:0;font-weight:700}.faq-list{flex-direction:column;gap:0;max-width:760px;margin:0 auto;display:flex}.faq-item{border-bottom:1px solid var(--gray-100)}.faq-item:first-child{border-top:1px solid var(--gray-100)}.faq-q{color:var(--navy-dark);cursor:pointer;grid-template-columns:32px 1fr;gap:12px;padding:20px 0;font-size:15px;font-weight:700;display:grid}.faq-q-icon{color:var(--navy);font-size:18px;font-weight:900;line-height:1.3}.faq-a{color:var(--gray-600);padding:0 0 20px 44px;font-size:14px;line-height:1.8}.form-section{background:var(--navy)}.form-section .section-label{color:#ffffff80}.form-section .section-title{color:var(--white);border-bottom-color:var(--gold)}.form-wrap{max-width:680px;margin:0 auto}.form-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.form-group{flex-direction:column;gap:6px;display:flex}.form-group.full{grid-column:1/-1}.form-label{color:#ffffffa6;font-size:13px;font-weight:500}.form-label .req{color:var(--gold);margin-left:4px;font-size:11px}.form-input{color:var(--white);background:#ffffff12;border:1px solid #fff3;border-radius:4px;width:100%;padding:12px 16px;font-family:inherit;font-size:15px;transition:border-color .2s}.form-input:focus{border-color:var(--gold);background:#ffffff1a;outline:none}.form-input::placeholder{color:#ffffff4d}select.form-input option{background:var(--navy-dark);color:var(--white)}.privacy-check{color:#fff9;align-items:flex-start;gap:10px;margin-top:10px;font-size:13px;display:flex}.privacy-check input{width:16px;height:16px;accent-color:var(--gold);flex-shrink:0;margin-top:2px}.privacy-check a{color:var(--gold)}.submit-btn{background:var(--gold);width:100%;color:var(--navy-dark);cursor:pointer;letter-spacing:.05em;border:none;border-radius:4px;margin-top:24px;padding:18px;font-family:inherit;font-size:17px;font-weight:700;transition:all .2s}.submit-btn:hover{background:var(--gold-light);box-shadow:var(--shadow-md);transform:translateY(-1px)}.submit-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.form-error{color:#ff6b6b;text-align:center;margin-top:8px;font-size:13px}.footer{background:var(--navy-dark);color:#ffffff73;text-align:center;padding:40px 24px;font-size:12px;line-height:2.2}.footer a{color:#ffffff73;margin:0 12px;transition:color .2s}.footer a:hover{color:var(--gold)}.footer-logo{color:#ffffffb3;letter-spacing:.05em;margin-bottom:12px;font-size:16px;font-weight:700}.disclaimer-bar{background:var(--gray-800);color:#ffffff80;text-align:center;padding:12px 24px;font-size:11px;line-height:1.7}@media (max-width:1024px){.hero-inner{grid-template-columns:1fr;gap:0}.hero-image{display:none}.hero-stats{flex-wrap:wrap}.stat-item{border-bottom:1px solid #ffffff1a;border-right:none;min-width:50%}.koseki-types{grid-template-columns:1fr 1fr}}@media (max-width:768px){.header-nav{display:none}.hamburger{display:flex}.hero{padding:56px 0 0}.hero h1{font-size:26px}.hero-ctas{flex-direction:column}.hero-ctas .btn{justify-content:center;width:100%}.section{padding:56px 0}.pain-grid,.service-grid,.koseki-types{grid-template-columns:1fr}.flow-steps{grid-template-columns:1fr;gap:32px}.flow-steps:before{display:none}.pricing-grid,.form-grid{grid-template-columns:1fr}.form-group.full{grid-column:1/-1}.comparison-table{font-size:13px}.comparison-table th,.comparison-table td{padding:12px 10px}.section-title{font-size:22px}}@media (max-width:480px){.container{padding:0 16px}.hero h1{font-size:22px}.logo{font-size:14px}.hero-stats{grid-template-columns:1fr 1fr;display:grid}.stat-item{border-bottom:1px solid #ffffff1a;border-right:none}}