/* ポータル（refs #1147） */
:root{
  --ink:#16181d;--mute:#4a505c;--line:#dcdad3;--bg:#f6f5f1;--paper:#fff;--acc:#16181d;
  --r:16px;--wrap:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Zen Kaku Gothic New","Hiragino Sans","Meiryo",sans-serif;font-size:16px;line-height:1.8;font-weight:500;
  word-break:keep-all;line-break:strict;overflow-wrap:anywhere}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #f59e0b;outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.nb{white-space:nowrap}
.pc{display:none}@media (min-width:768px){br.pc{display:inline}}
.skip{position:absolute;left:12px;top:-60px;background:#16181d;color:#fff;padding:10px 16px;border-radius:8px;z-index:10;text-decoration:none}
.skip:focus{top:12px}

/* header */
.top{position:sticky;top:0;z-index:5;background:rgba(246,245,241,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.top__in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{margin:0;font-weight:900;font-size:1.05rem;display:flex;align-items:center;gap:10px;flex-wrap:wrap;line-height:1.3}
.brand__mark{width:26px;height:26px;border-radius:7px;background:conic-gradient(#c8102e 0 60deg,#13315c 0 120deg,#d9822b 0 180deg,#2f4f3a 0 240deg,#00b3c7 0 300deg,#1d4ed8 0);flex:none}
.brand__sub{font-weight:500;font-size:.85rem;color:var(--mute)}
.top__nav{display:none;list-style:none;margin:0;padding:0;gap:4px}
.top__nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;text-decoration:none;font-weight:700;font-size:.95rem;border-radius:999px}
.top__nav a:hover{background:#e9e7e0}
@media (min-width:860px){.top__nav{display:flex}}

/* hero */
.hero{padding:56px 0 40px}
.eyebrow{margin:0 0 12px;font-family:Inter,sans-serif;font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:.8rem;color:var(--mute)}
.hero h1{margin:0 0 20px;font-size:clamp(1.9rem,5.2vw,3.6rem);line-height:1.3;font-weight:900;letter-spacing:.01em}
.lead{margin:0 0 36px;max-width:46em;color:#30343c;font-size:1.05rem}
.spectrum{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (min-width:768px){.spectrum{grid-template-columns:repeat(6,1fr)}}
.spectrum a{display:flex;flex-direction:column;gap:2px;min-height:88px;padding:12px 14px;background:var(--paper);border:1px solid var(--line);border-top:6px solid var(--c);border-radius:12px;text-decoration:none;transition:transform .2s,box-shadow .2s}
.spectrum a:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.spectrum b{font-family:Inter,sans-serif;font-size:1.6rem;line-height:1;color:var(--c)}
.spectrum span{font-weight:700;font-size:.95rem;line-height:1.4}
.spectrum__axis{display:flex;justify-content:space-between;margin:10px 0 0;font-size:.85rem;color:var(--mute);position:relative}
.spectrum__axis::before{content:"";position:absolute;left:7em;right:7em;top:50%;height:2px;background:linear-gradient(90deg,#c9c6bd,#16181d)}

/* section head */
section{padding:56px 0}
.sec-head{margin-bottom:28px;max-width:48em}
.sec-head h2{margin:0 0 8px;font-size:clamp(1.5rem,3.4vw,2.2rem);line-height:1.4;font-weight:900}
.sec-head p{margin:0;color:var(--mute)}

/* preview */
.preview{background:#16181d;color:#fff}
.preview .sec-head p{color:#c9ccd3}
.pv__bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:16px}
.pv__tabs{display:flex;flex-wrap:wrap;gap:6px}
.pv__tabs button{all:unset;cursor:pointer;display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;border-radius:999px;background:#262a33;color:#e7e9ee;font-family:Inter,"Zen Kaku Gothic New",sans-serif;font-weight:800;font-size:.95rem;border:2px solid transparent}
.pv__tabs button span{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:.85rem}
.pv__tabs button[aria-selected=true]{background:#fff;color:#16181d;border-color:#fff;box-shadow:inset 0 -4px 0 var(--c)}
.pv__tabs button:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.pv__tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.seg{display:inline-flex;background:#262a33;border-radius:999px;padding:3px}
.seg button{all:unset;cursor:pointer;min-height:38px;min-width:64px;text-align:center;border-radius:999px;font-weight:700;font-size:.9rem;color:#e7e9ee;display:inline-flex;align-items:center;justify-content:center}
.seg button[aria-pressed=true]{background:#fff;color:#16181d}
.seg button:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.pv__open{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:2px solid #fff;border-radius:999px;color:#fff;text-decoration:none;font-weight:700;font-size:.9rem;white-space:nowrap}
.pv__stage{background:#0d0f13;border-radius:var(--r);padding:16px;overflow:hidden}
.pv__frame{position:relative;margin:0 auto;border-radius:10px;overflow:hidden;background:#fff}
.pv__stage[data-dev=pc] .pv__frame{width:100%;aspect-ratio:16/10}
.pv__stage[data-dev=pc] iframe{position:absolute;left:0;top:0;width:1440px;height:900px;border:0;transform-origin:0 0;transform:scale(var(--s,.5))}
.pv__stage[data-dev=sp] .pv__frame{width:390px;max-width:100%;height:760px;border-radius:36px;border:10px solid #2b2f38}
.pv__stage[data-dev=sp] iframe{width:100%;height:100%;border:0}
.pv__cap{margin:12px 0 0;color:#c9ccd3;font-size:.95rem}

/* cards */
.cards{display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:900px){.cards{grid-template-columns:1fr 1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.card__shots{position:relative;display:block;background:linear-gradient(135deg,color-mix(in srgb,var(--c) 18%,#fff),#f1efe9);padding:22px 22px 0;min-height:200px}
.card__shots .pc{display:block;width:84%;border-radius:8px 8px 0 0;box-shadow:0 10px 30px rgba(0,0,0,.18);transition:transform .3s}
.card__shots .sp{position:absolute;right:18px;bottom:-1px;width:22%;border-radius:12px 12px 0 0;border:5px solid #1d2027;border-bottom:0;box-shadow:0 10px 30px rgba(0,0,0,.25);transition:transform .3s}
.card__shots:hover .pc{transform:translateY(-4px)}.card__shots:hover .sp{transform:translateY(-8px)}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body p{margin:0}
.card__id{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-weight:900;font-size:1.05rem}
.card__id>span:first-child{font-family:Inter,sans-serif;background:var(--c);color:#fff;border-radius:6px;padding:0 10px;font-size:.9rem;line-height:1.8}
.lv{display:inline-flex;gap:3px;margin-left:auto}
.lv i{width:9px;height:9px;border-radius:50%;background:#d9d6ce}
.lv i.on{background:var(--c)}
.card__concept{margin:0;font-size:clamp(1.2rem,2.4vw,1.5rem);line-height:1.5;font-weight:900;color:var(--c)}
.card__meta{margin:4px 0 0;display:grid;gap:6px;font-size:.92rem}
.card__meta div{display:grid;grid-template-columns:6.5em 1fr;gap:8px;align-items:center}
.card__meta dt{color:var(--mute);font-weight:700}
.card__meta dd{margin:0}
@media (max-width:520px){.card__meta div{grid-template-columns:1fr;gap:0}}
.sw{display:flex;gap:6px}.sw i{width:24px;height:24px;border-radius:50%;border:1px solid rgba(0,0,0,.18)}
.card__pages summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:700;font-size:.95rem;color:var(--mute)}
.card__pages ul{list-style:none;margin:0 0 6px;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.card__pages a{display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:.88rem}
.card__pages a:hover{border-color:var(--c)}
.btn{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;min-height:48px;padding:0 24px;background:var(--c);color:#fff;border-radius:999px;text-decoration:none;font-weight:900}
.btn::after{content:"→";margin-left:10px;transition:transform .2s}.btn:hover::after{transform:translateX(4px)}

/* compare */
.compare{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tbl-wrap{position:relative;overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.tbl{border-collapse:collapse;width:100%;min-width:860px;font-size:.95rem}
.tbl th,.tbl td{position:relative;padding:10px 12px;border-bottom:1px solid #ebe9e3;text-align:center}
.tbl thead th{background:#fafaf7;vertical-align:bottom}
.tbl thead a{display:flex;flex-direction:column;align-items:center;text-decoration:none;font-family:Inter,sans-serif;font-weight:800;font-size:1.2rem;color:var(--c);line-height:1.3}
.tbl thead small{font-family:"Zen Kaku Gothic New",sans-serif;font-size:.78rem;color:var(--mute);font-weight:700;white-space:nowrap}
.tbl tbody th{text-align:left;font-weight:700;min-width:15em}
.tbl td.on{color:#16181d;font-size:1.05rem}
.tbl td.off{color:#6b7280}
.tbl tr.sum td,.tbl tr.sum th{font-weight:900;background:#fafaf7;font-family:Inter,"Zen Kaku Gothic New",sans-serif}

/* structure */
.audience{display:grid;gap:16px;grid-template-columns:1fr;margin-bottom:32px}
@media (min-width:700px){.audience{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.audience{grid-template-columns:repeat(4,1fr)}}
.audience article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.audience h3{margin:0 0 6px;font-size:1.1rem}
.audience p{margin:0 0 8px;font-size:.95rem}
.audience .to{margin:0;color:var(--mute);font-size:.88rem;border-top:1px dashed var(--line);padding-top:8px}
.tree{list-style:none;margin:0 0 32px;padding:0;counter-reset:t;display:grid;gap:8px}
.tree li{counter-increment:t;display:grid;grid-template-columns:3em 1fr;gap:4px 12px;align-items:baseline;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px}
.tree li::before{content:counter(t,decimal-leading-zero);grid-row:span 2;font-family:Inter,sans-serif;font-weight:800;color:#6b7280}
.tree li.opt{border-style:dashed;background:transparent}
.tree li.opt::before{content:"+"}
.tree b{font-size:1.02rem}
.tree span{color:var(--mute);font-size:.92rem}
@media (min-width:768px){.tree li{grid-template-columns:3em 14em 1fr}.tree li::before{grid-row:auto}}
.promise{list-style:none;margin:0;padding:0;display:grid;gap:12px;grid-template-columns:1fr}
@media (min-width:700px){.promise{grid-template-columns:repeat(4,1fr)}}
.promise li{border-left:4px solid #16181d;padding:4px 0 4px 14px;font-size:.92rem;color:var(--mute)}
.promise b{display:block;color:var(--ink);font-size:1.02rem}

.foot{padding:40px 0 96px;color:var(--mute);font-size:.9rem;border-top:1px solid var(--line)}
.foot p{margin:0 0 6px}
.foot__by{font-weight:700}