/* AIRLINEMILL — OFFISNAPの作法に合わせる（2026-10-15 わたるさん「ホワイトすぎる」）
   青のアクセント・ヘッダー下の青い帯・全幅の写真スライド・四角いタイルつき見出し・濃色フッター */
:root{
--paper:#fff;--ground:#f6f4f0;--ink:#181716;--ink-2:#3b3833;--mute:#8a847c;--line:#e8e5df;
--accent:#1F6FB2;--accent-2:#12A5C4;--accent-deep:#1E2A78;--accent-tint:#EAF2FA;--accent-soft:#F0F5FA;
--dark:#141a24;--dark-text:#d9d5ce;
--f:#1E2A78;--c:#1F6FB2;--w:#12A5C4;--y:#b9d6ea;
--sans:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",sans-serif;
--mincho:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho",serif;
--latin:"Inter Tight","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.8 var(--sans);letter-spacing:.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--sans);font-weight:700;line-height:1.4;margin:0;letter-spacing:.02em;font-feature-settings:"palt";text-wrap:balance}
.wrap{max-width:1480px;margin:0 auto;padding-left:max(40px,env(safe-area-inset-left,0px));padding-right:max(40px,env(safe-area-inset-right,0px))}
@media(max-width:700px){.wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}}

/* header（追随） */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:30px;padding-block:14px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:26px;width:auto}
.brand span{font-size:10px;letter-spacing:.14em;color:var(--mute);padding-left:12px;border-left:2px solid var(--accent);line-height:1.3;white-space:nowrap}
.gnav{display:flex;gap:22px;font-size:13.5px;font-weight:500}
.gnav a:hover{color:var(--accent)}
.hbtn{margin-left:auto;background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.08em;padding:9px 16px;border-radius:2px;white-space:nowrap}
.hbtn:hover{background:var(--accent-deep)}
@media(max-width:860px){.head-in{flex-wrap:wrap;gap:10px 16px;padding-block:12px 0}.brand span{display:none}.gnav{order:3;width:100%;justify-content:space-between;border-top:1px solid var(--line);padding:10px 0;font-size:14px}.hbtn{font-size:11px;padding:8px 11px}}
.band{background:var(--accent);color:#fff;text-align:center;font-size:12px;font-weight:700;letter-spacing:.14em;padding:7px 16px}
@media(max-width:700px){.band{font-size:11.5px;letter-spacing:.06em}}

main{padding-bottom:20px}
.crumb{font-size:11.5px;color:var(--accent);letter-spacing:.06em;margin:18px 0 10px}
.crumb a:hover{text-decoration:underline}
.eyebrow{font-size:11px;letter-spacing:.16em;color:var(--accent);margin:0 0 6px;font-weight:700}
.kicker{font-size:11px;letter-spacing:.16em;color:var(--accent);font-weight:700;margin:0 0 4px}
.title{font-size:clamp(26px,3.2vw,40px);line-height:1.4}
.title span{display:block;font-size:15px;font-weight:500;color:var(--mute);margin-top:6px;letter-spacing:.02em}
.lead{max-width:44em;margin:14px 0 24px;color:var(--ink-2);font-size:15.5px;line-height:1.95}

/* TOP：全幅の写真スライド */
.hero{position:relative;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);width:100vw;background:var(--dark);overflow:hidden;display:grid}
.hs{grid-area:1/1;position:relative;opacity:0;visibility:hidden;transition:opacity 1s ease,visibility 1s}
.hs.on{opacity:1;visibility:visible}
.hs img{width:100%;height:min(84vh,900px);min-height:440px;object-fit:cover}
.hs .cap{position:absolute;left:0;right:0;bottom:0;padding:120px max(40px,calc(50vw - 700px)) 56px;background:linear-gradient(transparent,rgba(5,12,24,.45) 35%,rgba(5,12,24,.82));color:#fff}
.hs .tag{margin:0 0 10px;font-size:11.5px;font-weight:700;letter-spacing:.2em;color:#7fd9ee}
.hs .hst{font-size:clamp(28px,3.8vw,54px);line-height:1.32;letter-spacing:.03em;max-width:18em;text-shadow:0 1px 10px rgba(0,0,0,.35)}
.hs .hst a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:6px}
.hs .std{margin:12px 0 0;font-size:16px;line-height:1.9;max-width:40em;text-shadow:0 1px 8px rgba(0,0,0,.5);opacity:.95}
.hs .go{display:inline-block;margin-top:18px;background:var(--accent);color:#fff;font-size:12.5px;font-weight:700;letter-spacing:.1em;padding:10px 20px;border-radius:2px}
.hs .go:hover{background:var(--accent-deep)}
.hs .hcredit{position:absolute;top:12px;right:16px;margin:0;font-size:10.5px;color:#fff;opacity:.75;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.hdots{grid-area:1/1;align-self:end;justify-self:end;z-index:3;display:flex;gap:10px;padding:0 max(40px,calc(50vw - 700px)) 30px}
.hdots button{width:28px;height:3px;border:0;padding:0;background:rgba(255,255,255,.45);cursor:pointer}
.hdots button.on{background:#fff}
@media(max-width:700px){.hs img{height:72vh;min-height:420px}.hs .cap{padding:90px 16px 40px}.hs .std{font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.hdots{justify-self:start;padding:0 16px 16px}}
@media(prefers-reduced-motion:reduce){.hs{transition:none}}
.sintro{margin:30px 0 6px}
.sintro h1{font-size:clamp(19px,2vw,23px);line-height:1.5;margin:0 0 6px}
.sintro p{font-size:14px;line-height:1.9;color:var(--mute);margin:0;max-width:52em}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}
.chip{display:inline-flex;align-items:baseline;gap:6px;border:1px solid var(--accent);color:var(--accent);background:#fff;border-radius:999px;padding:7px 15px;font-size:13px;font-weight:500;white-space:nowrap}
.chip em{font-style:normal;font-size:10.5px;opacity:.75}
.chip:hover{background:var(--accent-soft)}
.chip.on{background:var(--accent);color:#fff}
.chip.sq{border-radius:2px}

/* sections */
.sec{margin-top:52px}
.sh{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.sh h2{display:flex;align-items:center;gap:10px;font-family:var(--mincho);font-weight:600;font-size:26px;letter-spacing:.02em}
.sh h2::before{content:"";width:12px;height:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));flex:none;border-radius:1px}
.sh p{margin:0;font-size:12.5px;color:var(--mute);letter-spacing:.04em}
.sh a{margin-left:auto;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--accent);border-bottom:1px solid var(--accent);padding-bottom:1px;white-space:nowrap}
@media(max-width:700px){.sh h2{font-size:21px}}

/* cards */
.cards{display:grid;gap:28px 20px}
.c4{grid-template-columns:repeat(4,minmax(0,1fr))}.c3{grid-template-columns:repeat(3,minmax(0,1fr))}.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:960px){.c4,.c3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.c4,.c3,.c2{grid-template-columns:minmax(0,1fr)}}
.card{display:block;min-width:0}
.card .ph{aspect-ratio:4/3;overflow:hidden;background:var(--ground);border-radius:2px;margin-bottom:10px}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .ph img{transform:scale(1.03)}
.card .noimg{width:100%;height:100%;display:grid;place-items:center;color:var(--mute);font-size:11px;letter-spacing:.14em;background:var(--ground)}
.card .eyebrow{font-size:10.5px;margin:0 0 3px;letter-spacing:.08em}
.card h3{font-size:16px;letter-spacing:.04em;margin:0 0 4px}
.card:hover h3{color:var(--accent)}
.card .desc{margin:0;font-family:var(--mincho);font-size:13px;font-weight:500;line-height:1.65;color:var(--ink-2);padding-bottom:8px;border-bottom:1px solid var(--line)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 0}
.tags span,.pill{background:var(--accent-tint);color:var(--accent);font-size:11px;font-weight:700;padding:2px 8px;border-radius:2px}

/* panel（青みの帯） */
.panel{margin-top:56px;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);background:var(--accent-tint);padding:44px max(40px,calc(50vw - 700px));display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}
.panel h2{font-family:var(--mincho);font-weight:600;font-size:clamp(24px,2.6vw,32px)}
.panel p{color:var(--ink-2);line-height:1.95}
@media(max-width:860px){.panel{grid-template-columns:minmax(0,1fr);padding:32px 16px}}
.airs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.airs a{position:relative;overflow:hidden;background:var(--dark);color:#fff;min-height:200px;padding:18px 22px;display:flex;flex-direction:column;justify-content:flex-end;gap:2px;border-radius:2px}
.airs a img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%;transition:transform .4s}
.airs a:hover img{transform:scale(1.04)}
.airs a::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(5,12,24,.62))}
.airs strong,.airs span{position:relative;z-index:1}
.airs strong{font-size:18px;font-weight:700;letter-spacing:.03em;text-shadow:0 1px 6px rgba(0,0,0,.35)}
.airs span{font-size:12px;font-weight:700;letter-spacing:.08em;color:#fff;opacity:.9}
@media(max-width:860px){.airs{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.airs{grid-template-columns:minmax(0,1fr)}}
.about{background:var(--ground);padding:26px 28px;border-left:3px solid var(--accent)}
.about h2{font-size:18px;margin-bottom:8px}
.about p{max-width:52em;color:var(--ink-2);margin:0;line-height:1.95}

/* 座席の詳細 */
.mosaic{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:6px}
.mosaic.one{grid-template-columns:minmax(0,1fr)}
.mosaic figure{margin:0;overflow:hidden;background:var(--ground);border-radius:2px}
.mosaic .big img{width:100%;height:100%;min-height:300px;max-height:540px;object-fit:cover}
.mosaic.one .big img{max-height:640px}
.mosaic .sm{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.mosaic .sm img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
@media(max-width:700px){.mosaic{grid-template-columns:minmax(0,1fr)}}
.credit{font-size:11.5px;color:var(--mute);margin:8px 0 0;padding-left:10px;border-left:2px solid var(--line);line-height:1.7}
.nophoto{background:var(--accent-tint);padding:44px;text-align:center;color:var(--accent);font-weight:500}
.detail{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;margin-top:34px;align-items:start}
@media(max-width:960px){.detail{grid-template-columns:minmax(0,1fr)}}
.seats{border-left:3px solid var(--accent);padding:2px 0 2px 12px}
.seats p{margin:0;font-size:10.5px;letter-spacing:.16em;color:var(--accent);font-weight:700}
.seats strong{font-size:17px}
.main .sec{margin-top:40px}
.main .sec h2{display:flex;align-items:baseline;gap:10px;font-size:22px}
.main .sec h2::before{content:"";width:9px;height:9px;background:var(--accent);flex:none;transform:translateY(-2px)}
.main .sec>p{margin:10px 0 0;max-width:40em;color:var(--ink-2);font-size:15.5px;line-height:2}
.plan{border-top:3px solid var(--accent);background:#fff;box-shadow:0 0 0 1px var(--line);padding:24px;position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px)}
@media(max-width:960px){.plan{position:static}}
.plan h2{font-size:19px}
.warn{background:var(--accent-soft);border-left:3px solid var(--accent);padding:10px 12px;font-size:12.5px;margin:14px 0 6px;line-height:1.7;color:var(--ink-2)}
.plan dl{margin:0}
.plan dl div{display:grid;grid-template-columns:86px minmax(0,1fr);gap:10px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.plan dt{font-size:11px;letter-spacing:.1em;color:var(--mute);padding-top:3px}
.plan dd{margin:0;display:flex;flex-wrap:wrap;gap:6px}
.plan .co a{color:var(--accent);font-weight:700;border-bottom:1px solid var(--accent)}
.src{font-size:11.5px;color:var(--mute);margin:12px 0 0}
.src a{color:var(--accent)}
.bar{display:flex;height:34px;margin-top:16px;gap:2px}
.bar div{display:grid;place-items:center;min-width:0;overflow:hidden;color:#fff;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.s-f{background:var(--f)}.s-c{background:var(--c)}.s-w{background:var(--w)}.s-y{background:var(--y);color:var(--ink)!important}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px;color:var(--mute);margin:8px 0 0}
.legend i{display:inline-block;width:10px;height:10px;margin-right:5px;vertical-align:-1px}
.cta{margin-top:48px;background:linear-gradient(100deg,var(--accent),var(--accent-2));color:#fff;padding:24px 28px;display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap;border-radius:2px}
.cta p{margin:0;font-size:18px;font-weight:700;letter-spacing:.03em}
.cta a{background:#fff;color:var(--accent);font-size:12.5px;font-weight:700;letter-spacing:.08em;padding:10px 18px;border-radius:2px;white-space:nowrap}

/* table */
.tbl{overflow-x:auto;margin-top:8px}
table{border-collapse:collapse;width:100%;min-width:760px;font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top}
th{font-size:11px;letter-spacing:.1em;color:#fff;background:var(--accent);font-weight:700;border-bottom:0}
tbody tr:nth-child(even){background:var(--accent-soft)}
td a{color:var(--accent);font-weight:700}
td small{display:block;color:var(--mute);font-size:11.5px}
td.n{font-variant-numeric:tabular-nums;white-space:nowrap}
td.c{text-align:center}

/* footer（濃色） */
.site-foot{margin-top:56px;background:var(--dark);color:var(--dark-text);padding-block:34px 30px;font-size:12.5px;letter-spacing:.04em}
.fin{display:flex;flex-wrap:wrap;gap:22px 56px;align-items:flex-start}
.fbrand img{height:20px;width:auto;margin-bottom:10px}
.fbrand p{margin:0;font-size:14px;color:#fff;opacity:.9}
.flinks{display:grid;grid-template-columns:repeat(2,auto);gap:8px 32px}
.flinks a:hover{color:#7fd9ee}
.run{margin-left:auto;border:1px solid var(--accent);padding:12px 16px;border-radius:2px}
.run span{display:block;font-size:10.5px;letter-spacing:.14em;color:var(--mute)}
.run a{color:#7fd9ee;font-weight:700;font-size:14px}
.site-foot .small{width:100%;color:#8a8f98;font-size:11px;line-height:1.8;margin:6px 0 0;max-width:72em}
@media(max-width:700px){.run{margin-left:0}.flinks{grid-template-columns:1fr 1fr}}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(prefers-reduced-motion:reduce){.card .ph img,.airs a img{transition:none}}
.mosaic .sm:has(> figure:only-child){grid-template-columns:minmax(0,1fr)}
.mosaic .sm:has(> figure:only-child) img{aspect-ratio:auto;max-height:540px}
.anote{margin-top:36px}
.anote ul{margin:0;padding-left:1.2em;max-width:52em;display:grid;gap:8px}
.anote li{color:var(--ink-2);line-height:1.9;font-size:15px}
.anote li::marker{color:var(--accent)}
.reco ul{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px;max-width:40em}
.reco li{padding:12px 16px;background:var(--accent-tint);border-left:3px solid var(--accent);border-radius:2px;font-weight:500;line-height:1.7}
.pnote{font-size:12.5px;color:var(--ink-2);background:var(--ground);padding:8px 12px;margin:8px 0 0;border-left:3px solid var(--accent-2)}
.apoints{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:6px 0 14px;max-width:960px}
.apoints div{background:var(--accent-tint);border-top:3px solid var(--accent);padding:14px 16px;border-radius:2px}
.apoints b{display:block;font-size:13px;letter-spacing:.06em;color:var(--accent);margin-bottom:4px}
.apoints p{margin:0;font-size:15px;font-weight:500;line-height:1.65}
@media(max-width:760px){.apoints{grid-template-columns:minmax(0,1fr)}}
.amore{max-width:960px;margin:0 0 8px;border-bottom:1px solid var(--line)}
.amore summary{cursor:pointer;font-size:13px;font-weight:700;color:var(--accent);padding:8px 0;list-style-position:inside}
.amore h3{font-size:15px;margin:14px 0 6px}
.amore ul{margin:0;padding-left:1.2em;display:grid;gap:4px}
.amore li{font-size:14px;line-height:1.8;color:var(--ink-2)}
.bgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:14px}
@media(max-width:760px){.bgrid{grid-template-columns:minmax(0,1fr)}}
.bcard{border:1px solid var(--line);border-top:3px solid var(--accent);padding:16px 18px;border-radius:2px;background:#fff;display:flex;flex-direction:column;gap:8px;min-width:0}
.bcard h3{font-size:16px}
.rts{list-style:none;margin:0;padding:0;display:grid;gap:0}
.rts li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.rts li b{font-weight:700}
.rts li span{font-variant-numeric:tabular-nums;color:var(--ink-2)}
.rts li em{grid-column:1/-1;font-style:normal;font-size:12px;color:var(--accent)}
.bnote{margin:0;font-size:12.5px;color:var(--mute);line-height:1.7}
.bbtn{display:block;text-align:center;background:var(--accent);color:#fff;font-weight:700;font-size:13.5px;padding:11px 14px;border-radius:2px;margin-top:auto}
.bbtn:hover{background:var(--accent-deep)}
.bbtn.sub{background:#fff;color:var(--accent);border:1.5px solid var(--accent)}
.bcardad{background:var(--accent-tint);padding:12px 14px;border-radius:2px;display:grid;gap:6px}
.bcardad b{font-size:14px}
.bcardad p{margin:0;font-size:13px;color:var(--ink-2);line-height:1.6}

.fsearch{margin:18px 0 8px}
.fsearch input{width:100%;max-width:520px;font:inherit;font-size:18px;padding:14px 16px;border:2px solid var(--accent);border-radius:2px;outline:none;background:#fff}
.fsearch p{min-height:1.4em;margin:8px 0 0;font-size:13px;color:var(--accent-deep)}
.flist{list-style:none;padding:0;margin:10px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.flist a{display:grid;gap:2px;padding:14px 16px;border:1px solid #dfe6ee;border-left:4px solid var(--accent);background:#fff;color:inherit;text-decoration:none}
.flist a:hover{background:var(--accent-tint)}
.flist b{font-size:16px;letter-spacing:.04em;color:var(--accent-deep)}
.flist span{font-weight:700}
.flist em,.flist i{font-style:normal;font-size:12.5px;color:#5b6675}
@media(max-width:700px){.flist{grid-template-columns:minmax(0,1fr)}}

.news{list-style:none;margin:0;padding:0;border-top:1px solid #dfe6ee}
.news li{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid #dfe6ee}
.news li>span{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.04em;padding-top:2px}
.news a{color:inherit;text-decoration:none;display:grid;gap:3px}
.news a:hover b{color:var(--accent)}
.news b{font-size:16px}
.news em{font-style:normal;font-size:13.5px;color:#5b6675;line-height:1.7}
.glink{display:grid;gap:4px;padding:18px 20px;margin:12px 0;border:1px solid #dfe6ee;border-left:4px solid var(--accent);background:#fff;color:inherit;text-decoration:none}
.glink:hover{background:var(--accent-tint)}
.glink b{font-size:17px}.glink em{font-style:normal;font-size:13.5px;color:#5b6675}
.gt{width:100%;border-collapse:collapse;font-size:14.5px;margin-top:10px}
.gt th,.gt td{text-align:left;padding:10px 12px;border-bottom:1px solid #dfe6ee}
.gt th{background:var(--accent-tint);color:var(--accent-deep);font-size:12.5px}
.faq h2{font-size:18px}
@media(max-width:560px){.news li{grid-template-columns:1fr;gap:4px}}

.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.aroutes .gt td{vertical-align:top;line-height:1.7}
.aroutes .gt td:first-child{white-space:nowrap;font-weight:700}
@media(max-width:560px){.aroutes .gt td:first-child{white-space:normal}.aroutes .gt th,.aroutes .gt td{padding:8px;font-size:13.5px}}
.afaq dl{margin:6px 0 0;max-width:960px;border-top:1px solid var(--line)}
.afaq dt{font-weight:700;font-size:15.5px;padding:14px 0 4px}
.afaq dt::before{content:"Q. ";color:var(--accent)}
.afaq dd{margin:0;padding:0 0 14px;border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.8;color:var(--ink-2)}