:root{--ink0:#050d1a;--ink:#0b1b33;--navy:#0f2747;--navy2:#16365f;--teal:#14b8a6;--teal-d:#0b7f78;--mint:#5eead4;--teal-l:#e6f7f5;--amber:#fbbf24;--text:#1b2735;--mute:#5a6878;--line:#e3e9f0;--bg:#f5f8fb;--w:#fff;--r:20px;--sh:0 1px 2px rgba(11,27,51,.04),0 12px 32px -8px rgba(11,27,51,.12);--max:1180px;--en:"Inter","Noto Sans JP",sans-serif;--jp:"Noto Sans JP","Hiragino Sans","Yu Gothic UI","Meiryo",system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--jp);color:var(--text);background:var(--w);line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%;font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto}
a{color:var(--teal-d)}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.35;color:var(--ink);margin:0 0 .6em;letter-spacing:.015em;font-weight:900}
h1{font-size:clamp(2rem,4.6vw,3.6rem);letter-spacing:.01em}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem)}
h3{font-size:1.18rem;font-weight:700}
p{margin:0 0 1em;text-wrap:pretty}
h1,h2,h3,summary,.lead{text-wrap:balance;word-break:auto-phrase}
p,li{word-break:auto-phrase}
.en{font-family:var(--en);letter-spacing:.02em}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--en);font-size:.78rem;font-weight:800;letter-spacing:.2em;color:var(--teal-d);text-transform:uppercase;margin-bottom:1.1em}
.eyebrow::before{content:"";width:28px;height:2px;background:currentColor;border-radius:2px}
section{padding:112px 0;position:relative}
.alt{background:var(--bg)}
.center{text-align:center}
.center .eyebrow{justify-content:center}
.lead{font-size:1.1rem;color:var(--mute);max-width:44em}
.center .lead{margin-left:auto;margin-right:auto}
.dark{background:var(--ink);color:#c5d3e4;overflow:hidden}
.dark h2,.dark h3{color:#fff}
.dark .eyebrow{color:var(--mint)}
.dark .lead{color:#9fb3cb}
.dark::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 50% at 50% 0,rgba(20,184,166,.18),transparent 70%);pointer-events:none}
.dark>.wrap{position:relative}
/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(11,27,51,.07)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{white-space:nowrap;display:flex;align-items:center;gap:11px;font-family:var(--en);font-weight:800;color:var(--ink);text-decoration:none;font-size:1.08rem;letter-spacing:-.01em}
.logo svg{width:36px;height:36px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{white-space:nowrap;color:var(--text);text-decoration:none;padding:9px 13px;border-radius:10px;font-size:.92rem;font-weight:500}
.nav a:hover,.nav a[aria-current=page]{background:var(--teal-l);color:var(--teal-d)}
.nav .btn{color:#fff;margin-left:10px}
.nav .btn:hover{background:var(--ink);color:#fff}
.menu-b{display:none;background:none;border:1px solid var(--line);border-radius:12px;width:46px;height:46px;font-size:1.2rem;cursor:pointer;color:var(--ink)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--teal),#0ea5a0);color:#fff;text-decoration:none;font-weight:700;padding:16px 32px;border-radius:999px;border:0;cursor:pointer;font-size:1rem;font-family:inherit;transition:transform .2s,box-shadow .2s;box-shadow:0 10px 24px -8px rgba(20,184,166,.7)}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -8px rgba(20,184,166,.8);color:#fff}
.btn::after{content:"→";transition:transform .2s}
.btn:hover::after{transform:translateX(4px)}
.btn.ghost{background:rgba(255,255,255,.06);color:#fff;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.4)}
.btn.ghost:hover{background:#fff;color:var(--ink)}
.btn.line{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}
.btn.line:hover{background:var(--ink);color:#fff}
.btn.sm{padding:10px 20px;font-size:.9rem;box-shadow:none}
.btn.sm::after,.btn.nofx::after{content:none}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btns.center,.center .btns{justify-content:center}
/* hero */
.hero{background:var(--ink0);color:#fff;padding:96px 0 120px;position:relative;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 70% at 85% 20%,rgba(20,184,166,.35),transparent 60%),radial-gradient(50% 60% at 5% 90%,rgba(59,130,246,.28),transparent 60%),linear-gradient(180deg,#07142a,#050d1a)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(70% 80% at 60% 40%,#000,transparent)}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero h1{color:#fff;margin-bottom:.5em}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--mint),#7dd3fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:#b6c8de;font-size:1.12rem;max-width:32em}
.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);padding:7px 16px;border-radius:999px;font-size:.82rem;color:#d3e3f5;margin-bottom:28px}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(94,234,212,.25)}
.hero-art{width:100%;max-width:560px;justify-self:end;filter:drop-shadow(0 30px 50px rgba(0,0,0,.45))}
.float{animation:fl 6s ease-in-out infinite}
.float.b{animation-delay:-3s}
@keyframes fl{50%{transform:translateY(-10px)}}
/* proof strip */
.strip{background:var(--ink);border-top:1px solid rgba(255,255,255,.08);padding:0}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.strip .it{padding:30px 24px;border-left:1px solid rgba(255,255,255,.08);color:#9fb3cb;font-size:.85rem}
.strip .it:last-child{border-right:1px solid rgba(255,255,255,.08)}
.strip b{display:block;color:#fff;font-size:1.25rem;font-weight:800;margin-bottom:2px}
.page-hero{background:var(--ink0);color:#fff;padding:72px 0 64px;position:relative;overflow:hidden;isolation:isolate}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(50% 120% at 90% 0,rgba(20,184,166,.3),transparent 60%),linear-gradient(180deg,#07142a,#050d1a)}
.page-hero::after{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,transparent,#000)}
.page-hero h1{color:#fff;font-size:clamp(1.8rem,4.2vw,2.9rem);margin-bottom:.4em}
.page-hero p{color:#b6c8de;max-width:40em;margin:0;font-size:1.05rem}
.crumbs{font-size:.8rem;margin-bottom:22px;padding:0;list-style:none;display:flex;gap:8px;flex-wrap:wrap;color:#8ea6c2}
.crumbs a{color:#bcd1ea}
.crumbs li+li::before{content:"/";margin-right:8px;opacity:.5}
.ph-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center}
.ph-art svg{width:100%;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4))}
@media (max-width:1100px){.menu-b{display:block}.nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}.nav.open{display:flex}.nav a{padding:14px 12px}.nav .btn{margin:8px 0 0}}
@media (max-width:980px){.ph-grid{grid-template-columns:1fr}.ph-art{max-width:320px}}
/* grids/cards */
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px 30px;box-shadow:var(--sh);transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px)}
.card .ico{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--teal-l),#d6f3ef);display:grid;place-items:center;margin-bottom:20px}
.card .ico svg{width:28px;height:28px;stroke:var(--teal-d);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card p{color:var(--mute);margin-bottom:.8em;font-size:.96rem}
a.more{font-weight:700;text-decoration:none;display:inline-flex;gap:6px;align-items:center}
a.more::after{content:"→";transition:transform .2s}
a.more:hover::after{transform:translateX(5px)}
/* problem (editorial split) */
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}
.sticky{position:sticky;top:110px}
.probs{margin:0;padding:0;list-style:none}
.probs li{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:30px 0;border-top:1px solid var(--line)}
.probs li:last-child{border-bottom:1px solid var(--line)}
.probs .n{font-family:var(--en);font-weight:800;font-size:2.4rem;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--teal)}
.probs h3{margin-bottom:.3em;font-size:1.25rem}
.probs p{margin:0;color:var(--mute)}
/* strengths */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:64px;border:1px solid rgba(255,255,255,.1);border-radius:var(--r);overflow:hidden}
.why>div{padding:44px 34px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));border-left:1px solid rgba(255,255,255,.1)}
.why>div:first-child{border-left:0}
.why .n{font-family:var(--en);font-weight:800;font-size:3.4rem;line-height:1;background:linear-gradient(180deg,var(--mint),rgba(94,234,212,.1));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:18px}
.why p{color:#9fb3cb;margin:0;font-size:.96rem}
/* services (feature rows) */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;padding:56px 0}
.feat+.feat{border-top:1px solid var(--line)}
.feat.rev .vis{order:-1}
.feat .tag{font-family:var(--en);font-weight:800;color:var(--teal-d);font-size:.85rem;letter-spacing:.14em}
.feat h3{font-size:clamp(1.5rem,2.8vw,2.1rem);margin:.2em 0 .5em}
.feat .vis{border-radius:28px;background:linear-gradient(135deg,#e9f8f6,#e8f0fb);padding:36px;display:grid;place-items:center}
.feat .vis svg{width:100%;max-width:440px;filter:drop-shadow(0 18px 24px rgba(11,27,51,.14))}
.feat .list{margin:1em 0 1.4em}
.list{padding:0;list-style:none;margin:0 0 1em}
.list li{padding-left:30px;position:relative;margin-bottom:.65em}
.list li::before{content:"";position:absolute;left:0;top:.5em;width:18px;height:18px;border-radius:50%;background:var(--teal-l) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.5l2.5 2.5L13 6.5' fill='none' stroke='%230b7f78' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/18px no-repeat}
/* audience tiles */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.tile{border-radius:var(--r);padding:38px 32px;color:#fff;position:relative;overflow:hidden;min-height:260px;display:flex;flex-direction:column;justify-content:flex-end}
.tile:nth-child(1){background:linear-gradient(160deg,#16365f,#0b1b33)}
.tile:nth-child(2){background:linear-gradient(160deg,#0b7f78,#0b3b4a)}
.tile:nth-child(3){background:linear-gradient(160deg,#3b3f8f,#14224d)}
.tile svg{position:absolute;right:22px;top:22px;width:64px;height:64px;stroke:rgba(255,255,255,.35);fill:none;stroke-width:1.2}
.tile h3{color:#fff;font-size:1.25rem}
.tile p{margin:0;color:#cfe0f3;font-size:.95rem}
/* flow timeline */
.tl{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:64px 0 0;padding:0;list-style:none;position:relative;counter-reset:s}
.tl::before{content:"";position:absolute;left:12%;right:12%;top:29px;height:2px;background:repeating-linear-gradient(90deg,var(--teal) 0 8px,transparent 8px 16px);opacity:.5}
.tl li{position:relative;text-align:center;counter-increment:s;padding:0 8px}
.tl li::before{content:counter(s,decimal-leading-zero);display:grid;place-items:center;width:58px;height:58px;border-radius:50%;background:var(--ink);color:var(--mint);font-family:var(--en);font-weight:800;margin:0 auto 22px;box-shadow:0 0 0 8px #fff,0 0 0 9px var(--line);position:relative}
.alt .tl li::before{box-shadow:0 0 0 8px var(--bg),0 0 0 9px var(--line)}
.tl h3{margin-bottom:.4em}
.tl p{color:var(--mute);font-size:.92rem;margin:0}
/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;transition:box-shadow .2s}
details[open]{box-shadow:var(--sh);border-color:#cfe9e6}
summary{cursor:pointer;padding:20px 26px;font-weight:700;color:var(--ink);list-style:none;position:relative;padding-right:60px}
summary::-webkit-details-marker{display:none}
summary::before{content:"Q";font-family:var(--en);font-weight:800;color:var(--teal);margin-right:12px}
summary::after{content:"";position:absolute;right:26px;top:50%;width:10px;height:10px;border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details .a{padding:0 26px 22px 52px;color:var(--mute)}
/* cta band */
.cta{background:var(--ink0);color:#fff;text-align:center;padding:112px 0;overflow:hidden;isolation:isolate}
.cta::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(50% 80% at 50% 120%,rgba(20,184,166,.5),transparent 70%),radial-gradient(40% 60% at 10% 0,rgba(59,130,246,.25),transparent 70%)}
.cta h2{color:#fff;font-size:clamp(1.7rem,4vw,2.9rem)}
.cta p{color:#b6c8de;max-width:34em;margin-left:auto;margin-right:auto}
/* page content */
.layout{display:grid;grid-template-columns:1fr 340px;gap:64px;align-items:start}
.aside{position:sticky;top:100px;background:var(--ink);color:#c5d3e4;border-radius:var(--r);padding:32px 28px}
.aside h3{color:#fff}
.aside p{font-size:.92rem}
.aside .btn{width:100%}
.aside ul{list-style:none;padding:0;margin:20px 0 0;font-size:.9rem}
.aside li{padding:10px 0;border-top:1px solid rgba(255,255,255,.1)}
.aside li a{color:#bcd1ea;text-decoration:none}
.aside li a:hover{color:#fff}
.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.tbl th,.tbl td{padding:18px 22px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:0}
.tbl th{width:28%;background:var(--bg);color:var(--ink)}
.prose{max-width:760px}
.prose.mid{margin:0 auto}
.prose h2{margin-top:2.2em;font-size:clamp(1.35rem,2.6vw,1.8rem);padding-left:16px;border-left:5px solid var(--teal)}
.prose>h2:first-child{margin-top:0}
.prose h3{margin-top:1.8em}
.meta{color:var(--mute);font-size:.88rem}
.box{background:linear-gradient(135deg,var(--teal-l),#e8f0fb);border-radius:16px;padding:22px 26px;margin:1.8em 0}
.pts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0 8px}
.pts .card{padding:24px 22px;box-shadow:none}
.pts h3{font-size:1rem;margin-bottom:.3em}
.pts p{font-size:.9rem;margin:0}
/* form */
.cform{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start}
form{background:#fff;border:1px solid var(--line);border-radius:24px;padding:40px;box-shadow:var(--sh)}
label{display:block;font-weight:700;margin:0 0 8px;color:var(--ink);font-size:.95rem}
.req{background:#fff1e6;color:#c2410c;font-size:.7rem;margin-left:8px;padding:2px 8px;border-radius:99px;font-weight:700}
input[type=text],input[type=email],select,textarea{width:100%;padding:14px 16px;border:1.5px solid #c9d4e0;border-radius:12px;font:inherit;background:#fbfcfe;color:var(--text);transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--teal);box-shadow:0 0 0 4px rgba(20,184,166,.18);background:#fff}
textarea{min-height:170px;resize:vertical}
.field{margin-bottom:24px}
.err{color:#b91c1c;font-size:.86rem;min-height:1.2em;margin-top:4px}
.hp{position:absolute;left:-9999px}
.note{font-size:.88rem;color:var(--mute)}
.status{padding:14px 18px;border-radius:12px;margin-top:16px;display:none}
.status.ok{display:block;background:#e7f8ef;color:#14532d}
.status.ng{display:block;background:#fdecec;color:#7f1d1d}
/* footer */
.ft{background:var(--ink0);color:#8ea6c2;padding:72px 0 40px;font-size:.92rem}
.ft a{color:#bcd1ea;text-decoration:none}
.ft a:hover{text-decoration:underline;color:#fff}
.ft .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.ft h2{color:#fff;font-size:.8rem;font-family:var(--en);letter-spacing:.16em;text-transform:uppercase;margin-bottom:1.2em;font-weight:800}
.ft ul{list-style:none;padding:0;margin:0}
.ft li{margin-bottom:.7em}
.copy{border-top:1px solid #15294a;margin-top:48px;padding-top:24px;font-size:.8rem;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.sticky-cta{display:none}
/* motion */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.1s}.rv.d2{transition-delay:.2s}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.rv{opacity:1;transform:none}}
@media (max-width:1100px){.menu-b{display:block}.nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}.nav.open{display:flex}.nav a{padding:14px 12px}.nav .btn{margin:8px 0 0}}
@media (max-width:980px){
section{padding:72px 0}
.hero{padding:64px 0 80px}
.hero .grid,.g3,.g2,.split,.why,.feat,.tiles,.layout,.cform,.ft .cols,.pts{grid-template-columns:1fr}
.hero-art{max-width:420px;justify-self:center}
.sticky,.aside{position:static}
.split{gap:32px}
.feat{gap:32px}.feat.rev .vis{order:0}
.why>div{border-left:0;border-top:1px solid rgba(255,255,255,.1)}.why>div:first-child{border-top:0}
.strip .wrap{grid-template-columns:1fr 1fr}
.strip .it:nth-child(2){border-right:1px solid rgba(255,255,255,.08)}
.tl{grid-template-columns:1fr 1fr;row-gap:40px}.tl::before{display:none}
.menu-b{display:block}
.nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}
.nav.open{display:flex}
.nav a{padding:14px 12px}
.nav .btn{margin:8px 0 0}
.tbl th,.tbl td{display:block;width:100%}
.tbl th{padding-bottom:4px;border-bottom:0}
.sticky-cta{display:block;position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:10px 16px}
.sticky-cta .btn{display:flex;padding:14px}
.ft{padding-bottom:100px}
form{padding:24px}
.btns .btn{flex:1 1 auto}
}
@media (max-width:520px){.tl{grid-template-columns:1fr}.strip .wrap{grid-template-columns:1fr}.strip .it{border:0;border-top:1px solid rgba(255,255,255,.08)}.probs li{grid-template-columns:52px 1fr}}
.cta .btns{justify-content:center}