:root{--navy:#0d1b3e;--navy2:#162a5c;--crimson:#8b1a2b;--gold:#c9a24a;--gold-soft:#f1e3bb;--cream:#faf7f1;--ink:#1f2430;--ink-dim:#5d6473;--rule:#e2dccd;--card:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;color:var(--ink);background:var(--cream);line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%}
a{color:var(--navy)}img{max-width:100%;display:block}
.serif{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
header.top{background:#fff;border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:20}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:700;font-size:15px;letter-spacing:.04em}
.brand .mark{width:36px;height:40px;background:var(--navy);clip-path:polygon(0 0,100% 0,100% 70%,50% 100%,0 70%);display:grid;place-items:center;color:var(--gold);font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:20px;font-weight:700}
nav.g{display:flex;gap:22px;align-items:center;font-size:14px}
nav.g a{text-decoration:none;color:var(--ink)}
nav.g a.cta{background:var(--crimson);color:#fff;padding:9px 18px;border-radius:3px;font-weight:700}
.menu-btn{display:none;background:none;border:1px solid var(--rule);border-radius:4px;padding:6px 10px;font-size:13px;color:var(--navy)}
@media(max-width:860px){nav.g{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--rule)}nav.g.open{display:flex}nav.g a{padding:14px 20px;border-top:1px solid var(--rule)}nav.g a.cta{margin:12px 20px;text-align:center}.menu-btn{display:block}}
/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero .wrap{width:100%;display:grid;grid-template-columns:4fr 8fr;min-height:560px;padding:0}
.hero .copy{min-width:0;padding:48px 36px 44px;position:relative;z-index:2;background:linear-gradient(90deg,var(--navy) 0%,var(--navy) 85%,rgba(13,27,62,0) 100%)}
.hero .pic{position:relative;min-height:320px}
.hero .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:100% center;z-index:1}
.hero .pic .ph{position:absolute;inset:0;background:radial-gradient(ellipse at 70% 40%,#f6c9d4 0%,#8fb4e6 45%,#162a5c 100%)}
.seal{display:inline-grid;place-items:center;width:96px;height:96px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#2a4079,#0d1b3e 70%);border:3px solid var(--gold);box-shadow:0 0 0 4px #0d1b3e,0 0 0 5px var(--gold);margin-bottom:8px}
.seal .ch{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:44px;color:var(--gold);line-height:1;font-weight:700}
.sealcap{font-family:Georgia,serif;font-size:10.5px;letter-spacing:.24em;color:var(--gold-soft);margin:0 0 14px}
.hero h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-size:clamp(24px,3.1vw,36px);letter-spacing:.06em;line-height:1.35;margin:0 0 6px;color:#fff}
.hero h1 b{color:var(--gold);font-weight:700}
.hero .catch{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(20px,2.4vw,28px);letter-spacing:.08em;margin:18px 0 0;line-height:1.5}
.hero .catch-en{font-family:Georgia,"Times New Roman",serif;font-style:italic;color:var(--gold-soft);font-size:17px;letter-spacing:.04em;margin:4px 0 20px}
.hero .fact{border-top:1px solid rgba(201,162,74,.5);border-bottom:1px solid rgba(201,162,74,.5);padding:10px 0;font-size:14px;letter-spacing:.04em;color:var(--gold-soft)}
.hero .icons{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:18px 0 20px}
.hero .icons a{background:rgba(255,255,255,.06);border:1px solid rgba(201,162,74,.55);color:#fff;text-decoration:none;text-align:center;padding:12px 2px 10px;font-size:12px;line-height:1.4;border-radius:3px;letter-spacing:0}
.hero .icons a span{display:block;font-size:22px;color:var(--gold);margin-bottom:4px}
.hero .last{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:15px;letter-spacing:.1em;color:var(--gold-soft);margin:0}
@media(max-width:860px){.hero .wrap{grid-template-columns:minmax(0,1fr)}.hero .pic{order:-1;min-height:240px;aspect-ratio:16/9}.hero .copy{padding:30px 20px 34px;background:var(--navy);width:100%}.hero .icons{grid-template-columns:repeat(2,minmax(0,1fr))}.seal{width:92px;height:92px}.seal .ch{font-size:36px}}
/* bands */
.band{background:var(--navy);color:#fff;padding:48px 0}
.band h2{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-size:clamp(22px,3vw,32px);letter-spacing:.08em;line-height:1.5;margin:0 0 14px}
.band p{margin:0;font-size:15.5px;color:#e8e3d6;max-width:760px}
section{padding:56px 0}
section.alt{background:#fff}
h2.t{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;color:var(--navy);font-size:clamp(22px,2.8vw,30px);letter-spacing:.1em;margin:0 0 6px;line-height:1.4}
p.en{font-family:Georgia,serif;font-style:italic;color:var(--gold);letter-spacing:.14em;font-size:12px;margin:0 0 24px;text-transform:uppercase}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--rule);border-top:3px solid var(--gold);padding:24px 22px}
.card h3{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;color:var(--navy);font-size:19px;margin:0 0 10px;letter-spacing:.06em}
.card p{margin:0;font-size:14.5px;color:var(--ink)}
.card .n{font-family:Georgia,serif;color:var(--gold);font-size:13px;letter-spacing:.2em;display:block;margin-bottom:8px}
@media(max-width:860px){.grid3{grid-template-columns:1fr}}
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
@media(max-width:860px){.two{grid-template-columns:1fr}}
.frame img{border:1px solid var(--rule);background:#fff;padding:6px}
.tw{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
table.spec th,table.spec td{border:1px solid var(--rule);padding:10px 12px;text-align:left;vertical-align:top;line-height:1.7}
table.spec th{background:#f3eee2;color:var(--navy);font-weight:700;white-space:nowrap}
.src{font-size:12.5px;color:var(--ink-dim);margin-top:10px;line-height:1.9}
.answer{background:#fff;border-left:5px solid var(--crimson);padding:18px 22px;margin:0 0 26px}
.answer .lbl{font-size:11.5px;letter-spacing:.2em;color:var(--crimson);font-weight:700;margin:0 0 6px}
.answer p{margin:0}
ol.steps{list-style:none;padding:0;margin:0;display:grid;gap:12px;counter-reset:s}
ol.steps li{background:#fff;border:1px solid var(--rule);padding:18px 20px 18px 70px;position:relative;counter-increment:s}
ol.steps li::before{content:counter(s);position:absolute;left:20px;top:16px;width:36px;height:36px;border-radius:50%;background:var(--navy);color:var(--gold);display:grid;place-items:center;font-family:Georgia,serif;font-size:18px}
ol.steps b{display:block;color:var(--navy);font-size:16.5px;margin-bottom:4px}
ol.steps span{display:block;font-size:14.5px}
ol.steps em{display:block;font-style:normal;font-size:13.5px;color:var(--ink-dim);margin-top:6px;border-top:1px dashed var(--rule);padding-top:6px}
ul.reasons{list-style:none;padding:0;margin:0;display:grid;gap:10px}
ul.reasons li{background:#fff;border:1px solid var(--rule);padding:14px 18px;font-size:14.5px}
ul.reasons b{color:var(--navy);display:block;margin-bottom:2px}
.flow{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:0;margin:0;counter-reset:f}
.flow li{counter-increment:f;background:#fff;border:1px solid var(--rule);border-top:3px solid var(--gold);padding:16px 14px 18px}
.flow li::before{content:"STEP " counter(f);display:block;font-size:10.5px;letter-spacing:.2em;color:#a7822a;margin-bottom:6px;font-family:Georgia,serif}
.flow b{display:block;color:var(--navy);font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:18px;letter-spacing:.06em}
.flow span{display:block;font-size:13.5px;line-height:1.8;margin-top:6px}
@media(max-width:640px){.flow{grid-template-columns:1fr 1fr}}
.cta{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:44px 28px;text-align:center;border-top:4px solid var(--gold)}
.cta h2{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(20px,2.6vw,28px);letter-spacing:.08em;margin:0 0 10px;line-height:1.5}
.cta p{margin:0 auto 18px;max-width:640px;font-size:15px;color:#e8e3d6}
.cta ul{list-style:none;padding:0;margin:0 auto 22px;max-width:520px;text-align:left;font-size:14px;color:#e8e3d6}
.cta ul li{padding-left:1.4em;position:relative;margin:4px 0}.cta ul li::before{content:"◆";color:var(--gold);position:absolute;left:0;font-size:11px;top:2px}
.btn{display:inline-block;background:var(--crimson);color:#fff;text-decoration:none;font-weight:700;padding:16px 34px;border-radius:3px;font-size:17px;letter-spacing:.06em;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.btn small{display:block;font-weight:400;font-size:12px;letter-spacing:.04em;opacity:.9}
.btn.ghost{background:transparent;border:1px solid var(--gold);color:var(--gold-soft);box-shadow:none;margin-left:10px}
@media(max-width:640px){.btn.ghost{margin:10px 0 0}}
dl.faq{margin:0}dl.faq dt{font-weight:700;color:var(--navy);padding:14px 0 4px;border-top:1px solid var(--rule)}dl.faq dt::before{content:"Q. ";color:var(--crimson)}dl.faq dd{margin:0 0 14px;font-size:14.5px}dl.faq dd::before{content:"A. ";color:var(--gold);font-weight:700}
.note{font-size:12.5px;color:var(--ink-dim);line-height:1.9}
footer{background:#0a1430;color:#cfd5e3;padding:44px 0 30px;font-size:13.5px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
footer h4{color:var(--gold);font-size:13px;letter-spacing:.14em;margin:0 0 10px}
footer a{color:#e6e9f1;text-decoration:none;display:block;margin:4px 0}
footer .hist{font-size:12.5px;color:#a9b2c6;margin-top:14px;line-height:1.8}
footer .copy{border-top:1px solid #213055;margin-top:28px;padding-top:16px;font-size:12px;color:#8e98b0}
@media(max-width:860px){footer .cols{grid-template-columns:1fr}}
/* article */
article.tk{background:#fff;border:1px solid var(--rule);padding:32px 30px;margin-bottom:28px}
article.tk h3{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;color:var(--navy);font-size:21px;letter-spacing:.06em;margin:0 0 4px;line-height:1.5}
article.tk .kind{font-size:11.5px;letter-spacing:.2em;color:var(--crimson);font-weight:700;margin:0 0 16px}
article.tk p{margin:0 0 14px;font-size:15.5px}
article.tk.diary{background:#fbf8f0;border-left:5px solid var(--gold)}
article.tk .by{font-size:13px;color:var(--ink-dim);text-align:right;margin:0}
@media(max-width:640px){article.tk{padding:24px 18px}}
.crumb{font-size:12.5px;color:var(--ink-dim);margin:18px 0 0}.crumb a{color:var(--navy);text-decoration:none}
.pagehead{background:var(--navy);color:#fff;padding:46px 0 40px}
.pagehead p.en{color:var(--gold);margin-bottom:6px}
.pagehead h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-size:clamp(24px,3.4vw,36px);letter-spacing:.08em;margin:0 0 10px;line-height:1.4}
.pagehead .lead{margin:0;color:#e8e3d6;font-size:15.5px;max-width:760px}

/* v3 additions */
.box{background:#fff;border:1px solid var(--rule);border-left:5px solid var(--gold);padding:20px 22px;margin:22px 0}
.box h3{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;color:var(--navy);font-size:19px;margin:0 0 8px;letter-spacing:.05em}
.box p{margin:0 0 10px;font-size:15px}.box p:last-child{margin-bottom:0}
.box.red{border-left-color:var(--crimson);background:#fff8f6}
.box.red h3{color:var(--crimson)}
.notice{background:#f3eee2;border:1px solid var(--rule);padding:16px 20px;font-size:14.5px;margin:0}
.notice b{color:var(--navy)}
table.price td.yen{font-weight:700;color:var(--navy);white-space:nowrap}
.links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
.links a{display:block;background:#fff;border:1px solid var(--rule);border-top:3px solid var(--navy);padding:16px 18px;text-decoration:none;color:var(--ink);font-size:14px;line-height:1.7}
.links a b{display:block;color:var(--navy);font-size:16px;margin-bottom:4px;font-family:"Hiragino Mincho ProN","Yu Mincho",serif}
@media(max-width:860px){.links{grid-template-columns:1fr}}
.prose p{font-size:15.5px;margin:0 0 14px}
.prose h3{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;color:var(--navy);font-size:20px;margin:30px 0 10px;letter-spacing:.05em}
.toc{background:#fff;border:1px solid var(--rule);padding:16px 22px;font-size:14.5px;margin:0 0 10px}
.toc b{color:var(--navy)}.toc ol{margin:6px 0 0;padding-left:1.4em}
.big{font-size:17px;font-weight:700;color:var(--crimson)}
@media(max-width:640px){.tw table.spec{min-width:600px}.tw{-webkit-overflow-scrolling:touch}.tw::after{content:"← 横にスクロールできます →";display:block;font-size:11.5px;color:var(--ink-dim);text-align:center;margin-top:4px}}

.hero .pic img{object-position:80% center}

.ok{display:inline-block;background:#2f6b3a;color:#fff;font-size:12px;padding:2px 10px;border-radius:999px;letter-spacing:.04em}
.box.green{border-left-color:#2f6b3a;background:#f3faf2}.box.green h3{color:#2f6b3a}
blockquote.q{margin:12px 0;padding:12px 18px;background:#fff;border-left:4px solid #2f6b3a;font-size:15px}