/* 1カラム・スマホ優先。暗い帯（ヘッダー・メイン画像・フッター）と明るいセクションを交互に置く */
:root{
  --bg:#F5F6F8; --surface:#FFFFFF; --ink:#12161D; --muted:#5A6371; --line:#DCE0E6;
  --vip:#A87A12; --vip-soft:#F6EED9; --std:#1E5BB8; --std-soft:#E3ECF8;
  --hero-bg:#12161D; --hero-ink:#F5F6F8; --hero-muted:#9AA3B1; --ball:#D9561E;
  --display:"Big Shoulders Display","Arial Narrow",sans-serif;
  --label:"Barlow Condensed","Arial Narrow",sans-serif;
  --body:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E1117; --surface:#161B24; --ink:#EDF0F4; --muted:#9AA3B1; --line:#2A313C;
  --vip:#E2B54C; --vip-soft:#2A2416; --std:#76A6F0; --std-soft:#172338;
  --hero-bg:#07090D; --hero-ink:#EDF0F4; --ball:#F07A43; color-scheme:dark}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.85;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--ball);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:960px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}

/* header */
.site-header{position:sticky;top:0;z-index:5;background:var(--hero-bg);color:var(--hero-ink);border-bottom:1px solid rgba(255,255,255,.08);padding-top:env(safe-area-inset-top)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.logo{font-family:var(--display);font-weight:900;font-size:20px;letter-spacing:.04em;text-decoration:none}
nav{display:flex;gap:20px;font-family:var(--label);font-weight:600;font-size:15px;letter-spacing:.12em}
nav a{text-decoration:none;opacity:.8}
nav a:hover{opacity:1}
@media (max-width:640px){nav{display:none}}
.site-header .logo,.site-header .btn{white-space:nowrap}
@media (max-width:360px){.site-header .logo{font-size:17px}.site-header .btn{padding:8px 14px}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--body);font-weight:700;font-size:14px;text-decoration:none;border-radius:999px;padding:10px 22px;border:0;cursor:pointer;line-height:1.4}
.btn-ball{background:var(--ball);color:#fff}
.btn-ghost{background:transparent;color:var(--hero-ink);border:1px solid rgba(255,255,255,.35)}

/* hero */
.hero{background:var(--hero-bg);color:var(--hero-ink)}
.hero-visual{position:relative;max-width:1280px;margin:0 auto;aspect-ratio:1600/383;overflow:hidden;background:#1C222C}
.hero-visual .slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .9s ease}
.hero-visual .slide.is-active{opacity:1}
@media (max-width:640px){.hero-visual{aspect-ratio:2/1}.hero-visual .slide{object-position:50% center}}
.dots{display:flex;justify-content:center;gap:10px;padding-top:14px}
.dots[hidden]{display:none}
.dot{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:rgba(255,255,255,.3);cursor:pointer}
.dot.is-active{background:var(--ball)}
@media (prefers-reduced-motion:reduce){.hero-visual .slide{transition:none}}
.hero-body{padding-block:28px 44px}
.eyebrow{font-family:var(--label);font-weight:600;letter-spacing:.2em;font-size:14px;color:var(--ball);margin:0 0 6px}
.lead{margin:0 0 22px;font-size:17px;font-weight:500}
.ctas{display:flex;gap:12px;flex-wrap:wrap}

/* sections */
section{padding-block:72px}
@media (max-width:640px){section{padding-block:52px}}
section[hidden]{display:none}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-family:var(--display);font-weight:900;font-size:44px;line-height:1;margin:0;letter-spacing:.02em}
@media (max-width:640px){.sec-head h2{font-size:36px}}
.sec-head span{font-size:13px;color:var(--muted);font-weight:500}
main.is-loading section .wrap > :not(.sec-head){opacity:.35;transition:opacity .2s}

/* news */
.news{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.news li{border-bottom:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:96px 88px 1fr 20px;gap:16px;align-items:baseline;padding:18px 4px;text-decoration:none;color:inherit}
.news-item:hover p{text-decoration:underline}
.news-item .arrow{color:var(--muted);font-size:20px;line-height:1;justify-self:end}
@media (max-width:640px){.news-item{grid-template-columns:auto 1fr 16px;gap:4px 12px}.news-item p{grid-column:1/3}.news-item .arrow{grid-row:1/3;grid-column:3;align-self:center}}
.news-more{margin-top:24px;text-align:center}
.news-more[hidden]{display:none}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);padding:12px 28px}
.btn-outline:hover{border-color:var(--ink)}

/* news page */
.news-page{min-height:calc(100vh - 150px)}
.news-page section{padding-block:56px 72px}
.page-title{font-family:var(--display);font-weight:900;font-size:44px;line-height:1;margin:0;letter-spacing:.02em}
.back{margin:28px 0 0;font-size:14px}
.back a{color:var(--muted);text-decoration:none}
.back a:hover{color:var(--ink);text-decoration:underline}
.article{max-width:40em}
.article > .back:first-child{margin:0 0 28px}
.article-meta{display:flex;align-items:center;gap:12px}
.article-meta[hidden]{display:none}
.article-meta time{font-family:var(--label);font-weight:600;font-size:16px;letter-spacing:.06em;font-variant-numeric:tabular-nums}
.article-title{font-size:clamp(22px,4vw,28px);line-height:1.5;margin:12px 0 28px;text-wrap:balance}
.article-body{border-top:1px solid var(--line);padding-top:24px}
.article-body p{margin:0 0 1.4em;white-space:pre-line}
.news time{font-family:var(--label);font-weight:600;font-size:16px;letter-spacing:.06em;font-variant-numeric:tabular-nums}
.tag{font-size:11px;font-weight:700;padding:2px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);justify-self:start;white-space:nowrap;line-height:1.6}
.tag.new{background:var(--ball);border-color:var(--ball);color:#fff}
.news p{margin:0;min-width:0}

/* message */
#message{background:var(--surface);border-block:1px solid var(--line)}
.banner{width:100%;height:auto;aspect-ratio:1600/383;object-fit:cover;border-radius:4px;margin-bottom:32px}
@media (max-width:640px){.banner{aspect-ratio:2/1;object-position:48% center}}
.msg-body{max-width:36em}
.msg-body p{margin:0 0 1.2em}
.pull{font-size:clamp(22px,4vw,28px);font-weight:700;line-height:1.5;margin:.4em 0 1em;padding-left:16px;border-left:4px solid var(--ball)}
.sign{font-family:var(--label);font-weight:600;letter-spacing:.14em;color:var(--muted)}

/* photo */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gallery figure{margin:0;display:flex;flex-direction:column;gap:6px;min-width:0}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;background:var(--line)}
.gallery figure.big{grid-column:span 2;grid-row:span 2}
.gallery figure.big img{flex:1;min-height:0}
.gallery.cols-2{grid-template-columns:1fr 1fr}
.gallery.cols-1{grid-template-columns:1fr;max-width:640px}
.gallery figcaption{font-size:12px;color:var(--muted)}
@media (max-width:640px){.gallery,.gallery.cols-2{grid-template-columns:1fr 1fr;gap:10px}.gallery figure.big{grid-row:auto}.gallery figure.wide-m{grid-column:span 2}.gallery figure.wide-m img{aspect-ratio:16/9}}

/* plans */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:700px){.plans{grid-template-columns:1fr}}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.plan > img{width:100%;aspect-ratio:1600/383;object-fit:cover}
.plan-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.plan-name{font-family:var(--display);font-weight:900;font-size:30px;line-height:1;letter-spacing:.03em;margin:0}
.plan.vip .plan-name{color:var(--vip)} .plan.std .plan-name{color:var(--std)}
.price{font-family:var(--label);font-weight:600;font-size:40px;line-height:1;font-variant-numeric:tabular-nums}
.price small{font-family:var(--body);font-size:13px;font-weight:500;color:var(--muted);margin-left:4px}
.plan ul{margin:0;padding-left:1.2em;color:var(--muted);font-size:14px}
.plan .btn{margin-top:auto;width:100%;padding-block:14px;color:#fff}
.plan.vip .btn{background:var(--vip)}
.plan.std .btn{background:var(--std)}
.plan .btn[aria-disabled="true"]{background:var(--line);color:var(--muted);cursor:default}

.compare-wrap{margin-top:36px;overflow-x:auto;border:1px solid var(--line);border-radius:6px;background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
thead th{font-family:var(--label);font-weight:600;letter-spacing:.12em;font-size:14px}
thead th.v{color:var(--vip);background:var(--vip-soft)} thead th.s{color:var(--std);background:var(--std-soft)}
td.v,td.s,thead th.v,thead th.s{text-align:center;width:22%}
td.v{background:var(--vip-soft)}
tbody th{font-weight:500}
.mark{font-weight:700;font-size:15px}
.note{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px;font-weight:400;white-space:pre-line}
.dash{color:var(--muted)}
@media (max-width:640px){th,td{padding:12px 8px;font-size:13px}td.v,td.s,thead th.v,thead th.s{width:28%}.note{font-size:11px}}
.foot-note{font-size:13px;color:var(--muted);margin-top:14px}

/* contact */
#contact{background:var(--surface);border-top:1px solid var(--line)}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media (max-width:700px){.contact{grid-template-columns:1fr;gap:24px}}
.contact p{margin:0}
.mailbox{border:1px solid var(--line);border-radius:6px;padding:22px;display:flex;flex-direction:column;gap:12px;min-width:0}
.mail{font-family:var(--label);font-weight:600;font-size:22px;letter-spacing:.03em;word-break:break-all;text-decoration:none}
.mail:hover{text-decoration:underline}
.rules{margin:0;padding-left:1.2em;color:var(--muted);font-size:14px}

footer{background:var(--hero-bg);color:var(--hero-ink)}
footer .wrap{padding-block:28px calc(28px + env(safe-area-inset-bottom));display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;opacity:.85}
footer .logo{font-size:16px}
@media (prefers-reduced-motion:no-preference){.btn{transition:filter .15s}.btn:hover{filter:brightness(1.08)}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}