:root{
  --navy:#17375e;
  --navy-deep:#0e2948;
  --gold:#c99a32;
  --sand:#d8bd91;
  --cream:#f7f0e4;
  --paper:#fffdf9;
  --ink:#1e2732;
  --muted:#64707c;
  --line:#e8dcc9;
  --success:#2f6b55;
  --danger:#9c3b3b;
  --shadow:0 18px 45px rgba(23,55,94,.12);
  --radius:22px;
  --content:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#0b2540}
img{max-width:100%;height:auto}
.container{width:min(calc(100% - 36px),var(--content));margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:auto}.skip-link:focus{left:16px;top:16px;background:#fff;padding:10px 14px;z-index:999;border-radius:8px;box-shadow:var(--shadow)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,249,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(216,189,145,.5)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy)}
.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,var(--navy-deep),var(--navy));display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:0 10px 25px rgba(23,55,94,.18);border:1px solid rgba(201,154,50,.6)}
.brand-copy{display:flex;flex-direction:column;line-height:1.25}.brand-copy strong{font-size:16px;letter-spacing:.02em}.brand-copy small{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.08em}
.nav{display:flex;align-items:center;gap:22px}.nav a{font-size:14px;font-weight:700;text-decoration:none;color:var(--ink)}.nav a:hover,.nav a[aria-current="page"]{color:var(--navy)}
.nav .nav-cta{background:var(--navy);color:#fff;padding:10px 16px;border-radius:999px;box-shadow:0 8px 20px rgba(23,55,94,.16)}.nav .nav-cta:hover{color:#fff;background:var(--navy-deep)}
.menu-button{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;font-weight:800;color:var(--navy)}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#fbf6ee 0%,#fffdf9 44%,#eef3f8 100%);border-bottom:1px solid var(--line)}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(1px);pointer-events:none}.hero:before{width:520px;height:520px;right:-220px;top:-250px;background:radial-gradient(circle,rgba(216,189,145,.5),rgba(216,189,145,0) 70%)}.hero:after{width:400px;height:400px;left:-220px;bottom:-240px;background:radial-gradient(circle,rgba(23,55,94,.11),rgba(23,55,94,0) 70%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center;padding:86px 0 80px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:800;color:var(--navy);box-shadow:0 8px 25px rgba(23,55,94,.07)}
.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold)}
h1{font-size:clamp(36px,5vw,64px);line-height:1.18;letter-spacing:-.035em;color:var(--navy-deep);margin:22px 0 20px}
.lead{font-size:18px;line-height:1.9;color:#44515e;max-width:740px;margin:0 0 28px}
.actions{display:flex;flex-wrap:wrap;gap:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 20px;border-radius:14px;font-weight:800;text-decoration:none;border:1px solid transparent;transition:.2s ease}.button.primary{background:var(--navy);color:#fff;box-shadow:0 12px 28px rgba(23,55,94,.18)}.button.primary:hover{background:var(--navy-deep);color:#fff;transform:translateY(-1px)}.button.secondary{background:#fff;color:var(--navy);border-color:var(--line)}.button.secondary:hover{border-color:var(--sand);transform:translateY(-1px)}
.hero-card{background:rgba(255,255,255,.86);border:1px solid rgba(216,189,145,.7);border-radius:30px;padding:28px;box-shadow:var(--shadow)}
.hero-card h2{font-size:20px;color:var(--navy);margin:0 0 12px}.hero-card ul{list-style:none;margin:0;padding:0}.hero-card li{position:relative;padding:12px 0 12px 34px;border-bottom:1px dashed var(--line);font-weight:700}.hero-card li:last-child{border-bottom:0}.hero-card li:before{content:"✓";position:absolute;left:0;top:12px;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#edf4f0;color:var(--success);font-size:13px;font-weight:900}
.section{padding:78px 0}.section.alt{background:var(--cream)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}.section-head h2{font-size:clamp(28px,4vw,42px);line-height:1.3;color:var(--navy-deep);margin:0}.section-head p{max-width:560px;margin:0;color:var(--muted)}
.grid{display:grid;gap:22px}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 12px 30px rgba(23,55,94,.06)}.card h3{margin:0 0 10px;color:var(--navy);font-size:21px;line-height:1.45}.card p{margin:0 0 14px;color:#4d5965}.card .text-link{font-weight:800;text-decoration:none}.card .text-link:after{content:" →"}
.number{display:grid;place-items:center;width:44px;height:44px;border-radius:15px;background:var(--navy);color:#fff;font-weight:900;margin-bottom:18px;border:1px solid rgba(201,154,50,.7)}
.notice{border:1px solid #ead9ba;background:#fffaf0;border-radius:18px;padding:20px 22px;color:#5c4a2f}.notice strong{color:#5a4017}.notice.danger{border-color:#eccaca;background:#fff7f7;color:#6d3434}
.page-hero{background:linear-gradient(135deg,var(--cream),#fff 56%,#eef4f8);border-bottom:1px solid var(--line)}.page-hero .container{padding-top:68px;padding-bottom:62px}.page-hero h1{font-size:clamp(34px,5vw,54px);max-width:900px}.page-hero .lead{max-width:850px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:14px}.breadcrumb a{color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:46px;align-items:start}.article{min-width:0}.article h2{font-size:30px;line-height:1.45;color:var(--navy-deep);margin:54px 0 16px}.article h3{font-size:22px;color:var(--navy);margin:34px 0 12px}.article p{margin:0 0 18px}.article ul,.article ol{padding-left:1.4em;margin:0 0 22px}.article li{margin:8px 0}.article blockquote{margin:24px 0;padding:22px 24px;background:var(--cream);border-left:5px solid var(--gold);border-radius:0 16px 16px 0}.article .meta{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 24px}.chip{display:inline-flex;align-items:center;background:#f1f4f7;color:#425367;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700}
.sidebar{position:sticky;top:100px}.toc,.side-cta{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:18px;box-shadow:0 10px 24px rgba(23,55,94,.05)}.toc strong,.side-cta strong{display:block;color:var(--navy);margin-bottom:10px}.toc a{display:block;text-decoration:none;font-size:14px;padding:6px 0;color:#4c5b69}.toc a:hover{color:var(--navy)}.side-cta{background:linear-gradient(145deg,var(--navy-deep),var(--navy));color:#fff;border:0}.side-cta strong{color:#fff;font-size:19px}.side-cta p{font-size:14px;color:#e7edf3;margin:0 0 14px}.side-cta .button{width:100%;background:#fff;color:var(--navy)}
.flow{display:grid;gap:16px;margin:26px 0}.flow-step{display:grid;grid-template-columns:58px 1fr;gap:16px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.flow-step .step{width:52px;height:52px;border-radius:16px;background:var(--navy);display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900}.flow-step h3{margin:0 0 6px}.flow-step p{margin:0;color:#52606c}
.template{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 12px 28px rgba(23,55,94,.06)}.template pre{white-space:pre-wrap;margin:0;font:inherit;line-height:1.9;color:#2e3945}
.price-card{position:relative;display:flex;flex-direction:column}.price{font-size:34px;line-height:1;color:var(--navy-deep);font-weight:900;margin:8px 0 18px}.price small{font-size:14px;color:var(--muted);font-weight:700}.price-card ul{padding-left:1.2em;margin:0 0 22px}.price-card .button{margin-top:auto}.badge{position:absolute;right:18px;top:18px;background:var(--gold);color:#fff;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900}
.sources{font-size:14px;color:var(--muted);border-top:1px solid var(--line);margin-top:48px;padding-top:24px}.sources ul{padding-left:1.2em}
.cta-band{background:linear-gradient(135deg,var(--navy-deep),var(--navy));color:#fff;border-radius:28px;padding:40px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:28px;box-shadow:var(--shadow)}.cta-band h2{color:#fff;margin:0 0 8px;font-size:30px}.cta-band p{margin:0;color:#dfe7ef}.cta-band .button{background:#fff;color:var(--navy)}
.site-footer{background:#102942;color:#d8e0e8;padding:54px 0 30px;margin-top:70px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}.site-footer h2,.site-footer h3{color:#fff;margin-top:0}.site-footer p{color:#c6d0d9}.site-footer a{color:#eef4f8}.footer-links{display:grid;gap:8px}.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:22px;font-size:12px;color:#aebbc7;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.update-box{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.update-box span{font-size:12px;font-weight:800;background:rgba(255,255,255,.72);border:1px solid var(--line);padding:6px 10px;border-radius:999px;color:var(--navy)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;margin:24px 0}table{width:100%;border-collapse:collapse;min-width:620px;background:#fff}th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}th{background:#f8f3ea;color:var(--navy)}tr:last-child td{border-bottom:0}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;padding:62px 0}.hero-card{max-width:680px}.grid.cols-4,.grid.cols-3{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}.toc,.side-cta{margin:0}.cta-band{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.nav{position:absolute;left:18px;right:18px;top:68px;display:none;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}.nav.open{display:flex}.nav a{padding:9px 8px}.menu-button{display:block}}
@media(max-width:620px){.container{width:min(calc(100% - 26px),var(--content))}.header-inner{height:68px}.brand-copy strong{font-size:14px}.brand-copy small{display:none}.hero-grid{padding:46px 0 54px;gap:32px}h1{font-size:36px}.lead{font-size:16px}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}.grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr}.page-hero .container{padding-top:46px;padding-bottom:44px}.article h2{font-size:26px;margin-top:44px}.cta-band{padding:28px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.actions .button{width:100%}.flow-step{grid-template-columns:46px 1fr;padding:17px}.flow-step .step{width:42px;height:42px;border-radius:13px}.hero-card{padding:22px}}
@media print{.site-header,.site-footer,.sidebar,.actions,.cta-band{display:none!important}.article-layout{display:block}.page-hero{background:#fff}.section{padding:20px 0}body{background:#fff;color:#000}.article h2{break-after:avoid}.card,.template{box-shadow:none}}