:root{
  --mar-ink:#0d1f4d;
  --mar-navy:#031122;
  --mar-blue:#5baee6;
  --mar-gold:#c8982a;
  --mar-paper:#fff;
  --mar-soft:#f2f8fd;
  --mar-line:rgba(13,31,77,.16);
  --mar-muted:#40516a;
}

/* Selected direction 3: a guided journey from understanding to action. */
.mar-hero{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  min-height:520px;
  display:flex;
  align-items:center;
  padding-block:92px 82px;
  background:
    linear-gradient(90deg,rgba(3,17,34,.78) 0%,rgba(3,17,34,.64) 43%,rgba(3,17,34,.12) 100%),
    url("/images/research/mar-ai-logo-network-hero-20260802.webp");
  background-size:cover;
  background-position:center;
}
.mar-hero--home{
  min-height:610px;
  background-image:url("/images/research/mar-ai-search-hero-v07-20260810-poster.webp");
}
.mar-hero--home::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(3,17,34,.82) 0%,rgba(3,17,34,.67) 43%,rgba(3,17,34,.16) 100%);
}
.mar-hero__video{
  position:absolute;
  inset:0;
  z-index:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  pointer-events:none;
}
.mar-hero--detail,
.mar-hero--channel,
.mar-hero--global{min-height:470px}
.mar-hero .page-hero__inner{position:relative;z-index:2;width:min(1120px,calc(100% - 64px))}
.mar-hero .eyebrow{margin-bottom:18px;color:#8ad1ff}
.mar-hero h1{max-width:820px;font-size:clamp(40px,5.4vw,68px);line-height:1.18;letter-spacing:-.025em}
.mar-hero--detail h1,
.mar-hero--channel h1,
.mar-hero--global h1{max-width:920px;font-size:clamp(36px,4.6vw,58px)}
.mar-hero .product-card__tagline{
  max-width:700px;
  margin-top:22px;
  color:#fff;
  font-size:clamp(18px,2vw,23px);
  font-weight:800;
}
.mar-hero .product-card__tagline+p{max-width:680px;margin-top:12px;font-size:16px;line-height:1.9}
.mar-hero .button-row{margin-top:30px}
.mar-hero .button{min-height:54px;padding-inline:26px}
.mar-hero .button--quiet{color:#fff!important}

.mar-service-nav{
  position:sticky;
  top:76px;
  z-index:15;
  border-bottom:1px solid var(--mar-line);
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);
}
.mar-service-nav>.page-section__inner{
  min-height:66px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.mar-nav{display:flex;align-items:center;gap:4px}
.mar-nav a,
.mar-nav-more summary,
.mar-nav-more a{
  min-height:44px;
  display:inline-flex;
  align-items:center;
  padding:0 14px;
  color:var(--mar-muted);
  font-size:13px;
  font-weight:800;
  text-decoration:none;
}
.mar-nav a[aria-current="page"],
.mar-nav-more a[aria-current="page"]{color:var(--mar-ink);box-shadow:inset 0 -3px var(--mar-gold)}
.mar-nav-more{position:relative}
.mar-nav-more summary{cursor:pointer;list-style:none;color:var(--mar-ink)}
.mar-nav-more summary::-webkit-details-marker{display:none}
.mar-nav-more summary::after{content:"＋";margin-left:8px;color:var(--mar-gold)}
.mar-nav-more[open] summary::after{content:"−"}
.mar-nav-more>div{
  position:absolute;
  right:0;
  top:calc(100% + 6px);
  width:250px;
  display:grid;
  padding:8px;
  border:1px solid var(--mar-line);
  background:#fff;
  box-shadow:0 18px 46px rgba(3,17,34,.16);
}
.mar-nav-more a{padding-inline:13px}

.mar-journey{border-bottom:1px solid var(--mar-line);background:#fff}
.mar-journey ol{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  margin:0;
  padding:48px 0;
  list-style:none;
}
.mar-journey li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:18px;
  padding:10px 34px;
  border-left:1px solid var(--mar-line);
}
.mar-journey li:first-child{border-left:0;padding-left:0}
.mar-journey li:last-child{padding-right:0}
.mar-journey li>span{
  color:#91bfe0;
  font:700 30px/1 Inter,sans-serif;
  letter-spacing:-.04em;
}
.mar-journey li strong{display:block;color:var(--mar-ink);font-size:18px;line-height:1.45}
.mar-journey li p{margin:8px 0 0;color:var(--mar-muted);font-size:13px;line-height:1.75}
.mar-journey li[aria-current="step"]>span{color:var(--mar-gold)}
.mar-journey li[aria-current="step"] strong{color:#765713}

.mar-intent{padding:76px 0;background:var(--mar-soft);border-bottom:1px solid var(--mar-line)}
.mar-intent__head{margin-bottom:32px}
.mar-intent__links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--mar-line)}
.mar-intent__links a{
  min-height:170px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:12px;
  padding:28px 34px;
  border-left:1px solid var(--mar-line);
  color:var(--mar-ink);
}
.mar-intent__links a:first-child{border-left:0}
.mar-intent__links span{color:var(--mar-muted);font-size:14px}
.mar-intent__links strong{font-size:20px;line-height:1.5}
.mar-intent__links strong::after{content:" →";color:var(--mar-gold)}

.card-grid>a.product-card{color:inherit;text-decoration:none}
.card-grid>a.product-card:hover{border-color:rgba(200,152,42,.58);transform:translateY(-2px)}
.card-grid--compact{gap:14px}
.card-grid--compact .product-card{
  padding:26px;
  border-color:var(--mar-line);
  border-radius:2px;
  box-shadow:none;
}
.card-grid--compact .product-card::before{opacity:.35}
.card-grid--compact .product-card h3{font-size:18px;line-height:1.55}
.card-grid--compact .product-card__body{margin-top:9px;color:var(--mar-muted);line-height:1.85}
.button--quiet{
  border-color:transparent!important;
  background:transparent!important;
  color:inherit!important;
  box-shadow:none!important;
  text-decoration:underline;
  text-decoration-color:rgba(200,152,42,.6);
  text-underline-offset:6px;
}
.mar-section-link{margin:24px 0 0}
.mar-section-link a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-bottom:4px;
  border-bottom:1px solid rgba(200,152,42,.58);
  color:var(--mar-ink);
  font-weight:800;
}

.mar-more{
  margin-top:22px;
  border-top:1px solid var(--mar-line);
  border-bottom:1px solid var(--mar-line);
}
.mar-more>summary{
  min-height:58px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--mar-ink);
  cursor:pointer;
  list-style:none;
  font-weight:800;
}
.mar-more>summary::-webkit-details-marker{display:none}
.mar-more>summary::after{content:"＋";color:var(--mar-gold);font-size:20px}
.mar-more[open]>summary::after{content:"−"}
.mar-more>.card-grid,.mar-more>.mar-table-wrap{margin:0 0 24px}

.mar-faq-list{max-width:900px;margin-inline:auto;border-top:1px solid var(--mar-line)}
.mar-faq-item{border-bottom:1px solid var(--mar-line)}
.mar-faq-item summary{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:18px 2px;
  color:var(--mar-ink);
  cursor:pointer;
  list-style:none;
  font-size:17px;
  font-weight:800;
}
.mar-faq-item summary::-webkit-details-marker{display:none}
.mar-faq-item summary::after{content:"＋";flex:0 0 auto;color:var(--mar-gold);font-size:22px}
.mar-faq-item[open] summary::after{content:"−"}
.mar-faq-item>div{padding:0 44px 24px 0}
.mar-faq-item p{margin:0;color:var(--mar-muted);line-height:1.9}

.mar-channel-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--mar-line)}
.mar-channel-strip__item{
  min-height:112px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:22px;
  border-left:1px solid var(--mar-line);
  color:var(--mar-ink);
  font-weight:800;
}
.mar-channel-strip__item:nth-child(3n+1){border-left:0}
.mar-channel-strip__item .mar-channel-logos{flex:0 0 auto;margin:0}
.mar-channel-strip__item>span{font-size:13px;line-height:1.45}
.mar-channel-logo-image{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:5px;
  border:1px solid var(--mar-line);
  border-radius:10px;
  background:#fff;
}
.mar-channel-logo-image img{width:100%;height:100%;object-fit:contain}
.mar-channel-logos{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 16px}
.mar-channel-logo{
  min-width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 9px;
  border:1px solid var(--mar-line);
  border-radius:9px;
  background:#fff;
  color:var(--mar-ink);
  font:800 11px/1 Inter,"Noto Sans JP",sans-serif;
}

.mar-compact-steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  margin:0;
  padding:0;
  list-style:none;
  border-block:1px solid var(--mar-line);
}
.mar-compact-steps li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:16px;
  padding:28px;
  border-left:1px solid var(--mar-line);
}
.mar-compact-steps li:first-child{border-left:0;padding-left:0}
.mar-compact-steps li:last-child{padding-right:0}
.mar-compact-step__number{color:var(--mar-gold);font:800 13px/1 Inter,sans-serif;letter-spacing:.14em}
.mar-compact-steps h3{margin:0;color:var(--mar-ink);font-size:20px;line-height:1.45}
.mar-compact-steps p{margin:9px 0 0;color:var(--mar-muted);line-height:1.8}

.mar-term-map{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--mar-line);border:1px solid var(--mar-line)}
.mar-term-map__item{padding:26px;background:#fff}
.mar-term-map__item p{margin:0;color:#8b6b1f;font-size:12px;font-weight:800;letter-spacing:.08em}
.mar-term-map__item h3{margin:8px 0 10px;color:var(--mar-ink);font:800 24px/1.3 Inter,"Noto Sans JP",sans-serif}
.mar-term-map__item span{display:block;color:var(--mar-muted);line-height:1.8}
.mar-term-details{display:grid;border-top:1px solid var(--mar-line)}
.mar-term-detail{border-bottom:1px solid var(--mar-line);background:#fff}
.mar-term-detail summary{
  min-height:68px;
  display:grid;
  grid-template-columns:100px minmax(0,1fr) auto;
  gap:16px;
  align-items:center;
  padding:16px 2px;
  cursor:pointer;
  list-style:none;
}
.mar-term-detail summary::-webkit-details-marker{display:none}
.mar-term-detail summary::after{content:"＋";color:var(--mar-gold);font-weight:800}
.mar-term-detail[open] summary::after{content:"−"}
.mar-term-detail summary strong{color:var(--mar-ink);font:800 17px/1.3 Inter,"Noto Sans JP",sans-serif}
.mar-term-detail summary span{color:var(--mar-muted);font-size:14px;font-weight:700}
.mar-term-detail>p{margin:0;padding:0 44px 22px 118px;color:var(--mar-muted);line-height:1.8}

.mar-table-wrap{margin:18px 0;border:1px solid var(--mar-line);background:#fff}
.mar-table{width:100%;border-collapse:collapse;font-size:13px}
.mar-table th,.mar-table td{padding:13px 14px;border-bottom:1px solid var(--mar-line);text-align:left;vertical-align:top}
.mar-table tr:last-child th,.mar-table tr:last-child td{border-bottom:0}
.mar-table th{color:var(--mar-ink);background:#f5f8fb;font-weight:800}
.mar-table tbody th{width:24%;background:#fff}
.mar-model-label{
  display:inline-block;
  margin:0 0 12px;
  padding:5px 10px;
  border:1px solid rgba(200,152,42,.45);
  color:#765713;
  font-size:12px;
  font-weight:800;
}
.mar-scores{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--mar-line);border:1px solid var(--mar-line)}
.mar-score{padding:18px;background:#fff}
.mar-score b{display:block;color:var(--mar-muted);font-size:12px}
.mar-score .v{display:block;color:var(--mar-ink);font-size:26px;font-weight:800}
.mar-score .v small{font-size:12px}
.mar-badge{display:inline-block;padding:2px 7px;color:#fff;font-size:11px;font-weight:800}

.mar-form{max-width:620px;display:grid;gap:15px;margin:18px 0}
.mar-form label:not(.mar-consent){display:grid;gap:7px;color:var(--mar-ink);font-size:14px;font-weight:800}
.mar-form input{
  min-height:52px;
  padding:12px 14px;
  border:1px solid rgba(13,31,77,.3);
  border-radius:2px;
  background:#fff;
  color:var(--mar-ink);
  font:inherit;
}
.mar-form input:focus{border-color:var(--mar-gold);outline:2px solid rgba(200,152,42,.22)}
.mar-consent{display:grid;grid-template-columns:18px minmax(0,1fr);gap:9px;align-items:start;color:var(--mar-muted);font-size:13px;line-height:1.65;cursor:pointer}
.mar-consent input{width:18px;height:18px;min-height:0;margin-top:4px;padding:0;accent-color:var(--mar-ink)}
.mar-form .note{margin:0;color:var(--mar-muted);font-size:12px}
.mar-result{display:none;margin-top:16px;padding:20px;border:1px solid var(--mar-line);background:#fff}
.mar-result__summary{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.mar-result__grade{
  width:76px;
  height:76px;
  display:grid;
  place-items:center;
  border:3px solid var(--grade-color);
  color:var(--grade-color);
  font:900 38px/1 Inter,sans-serif;
}

.mar-report-viewer{display:grid;grid-template-columns:minmax(220px,360px) minmax(0,1fr);gap:30px;align-items:center;margin:22px 0}
.mar-report-cover{width:100%;height:auto;border:1px solid var(--mar-line);background:#fff;box-shadow:0 18px 46px rgba(3,17,34,.12)}
.mar-report-link{display:grid;align-content:center;min-height:220px;padding:30px;border-block:1px solid var(--mar-line)}
.mar-report-link p{margin:0;color:var(--mar-muted)}

@media(max-width:820px){
  .mar-hero,.mar-hero--home,.mar-hero--detail,.mar-hero--channel,.mar-hero--global{min-height:auto;padding-block:72px 62px}
  .mar-service-nav{top:64px}
  .mar-service-nav>.page-section__inner{width:100%;padding-left:18px;overflow-x:auto}
  .mar-nav{flex:0 0 auto}
  .mar-nav-more{flex:0 0 auto;margin-right:18px}
  .mar-nav-more>div{position:fixed;right:18px;top:132px}
  .mar-journey ol{padding:34px 0}
  .mar-journey li{display:block;padding:8px 20px}
  .mar-journey li>span{display:block;margin-bottom:10px}
  .mar-intent__links{grid-template-columns:1fr}
  .mar-intent__links a{min-height:118px;border-left:0;border-top:1px solid var(--mar-line)}
  .mar-intent__links a:first-child{border-top:0}
  .mar-channel-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mar-channel-strip__item:nth-child(3n+1){border-left:1px solid var(--mar-line)}
  .mar-channel-strip__item:nth-child(2n+1){border-left:0}
  .mar-report-viewer{grid-template-columns:1fr}
}

@media(max-width:560px){
  .mobile-global-nav{top:64px}
  .mar-hero,.mar-hero--home,.mar-hero--detail,.mar-hero--channel,.mar-hero--global{padding:52px 0 46px}
  .mar-hero{
    background-image:
      linear-gradient(90deg,rgba(3,17,34,.9) 0%,rgba(3,17,34,.76) 64%,rgba(3,17,34,.34) 100%),
      url("/images/research/mar-ai-logo-network-hero-20260802.webp");
    background-position:68% center;
  }
  .mar-hero--home{
    background-image:url("/images/research/mar-ai-search-hero-v07-20260810-poster.webp");
    background-position:center;
  }
  .mar-hero--home::before{
    background:linear-gradient(90deg,rgba(3,17,34,.92) 0%,rgba(3,17,34,.78) 64%,rgba(3,17,34,.38) 100%);
  }
  .mar-hero .page-hero__inner{width:calc(100% - 36px)}
  .mar-hero h1,.mar-hero--detail h1,.mar-hero--channel h1,.mar-hero--global h1{font-size:34px;line-height:1.22;letter-spacing:-.015em}
  .mar-hero .balanced-title .h1-mobile{word-break:normal;overflow-wrap:break-word}
  .mar-hero .product-card__tagline{margin-top:16px;font-size:17px}
  .mar-hero .product-card__tagline+p{margin-top:9px;font-size:14px;line-height:1.8}
  .mar-hero .button-row{display:grid;grid-template-columns:1fr;gap:5px;margin-top:22px}
  .mar-hero .button-row .button{width:100%;min-height:50px;font-size:13px}
  .mar-hero .button-row .button--quiet{min-height:40px}
  .mar-service-nav{top:64px}
  .mar-service-nav>.page-section__inner{
    width:100%;
    min-height:58px;
    display:grid;
    grid-template-columns:minmax(0,1fr) auto;
    gap:0;
    padding:0 8px;
    overflow:visible;
  }
  .mar-nav{width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
  .mar-nav a{min-height:44px;justify-content:center;padding:0 3px;font-size:10px;white-space:nowrap}
  .mar-nav-more{margin:0}
  .mar-nav-more summary{min-height:44px;padding:0 6px;font-size:10px;white-space:nowrap}
  .mar-nav-more summary::after{margin-left:3px}
  .mar-nav-more>div{top:122px;width:calc(100% - 24px);right:12px}
  .mar-journey ol{grid-template-columns:1fr;padding:22px 0}
  .mar-journey li,.mar-journey li:first-child,.mar-journey li:last-child{
    display:grid;
    grid-template-columns:46px minmax(0,1fr);
    padding:16px 0;
    border-left:0;
    border-top:1px solid var(--mar-line);
  }
  .mar-journey li:first-child{border-top:0}
  .mar-journey li>span{margin:2px 0 0;font-size:24px}
  .mar-journey li strong{font-size:16px}
  .mar-journey li p{font-size:12px}
  .mar-intent{padding:54px 0}
  .mar-intent__links a{padding:24px 18px}
  .mar-intent__links strong{font-size:18px}
  .page-section{padding:56px 0}
  .card-grid--compact .product-card{padding:20px 18px}
  .mar-more>.card-grid{display:grid}
  .mar-channel-strip{grid-template-columns:1fr}
  .mar-channel-strip__item,.mar-channel-strip__item:nth-child(n){min-height:86px;border-left:0;border-top:1px solid var(--mar-line)}
  .mar-channel-strip__item:first-child{border-top:0}
  .mar-compact-steps{grid-template-columns:1fr}
  .mar-compact-steps li,.mar-compact-steps li:first-child,.mar-compact-steps li:last-child{padding:22px 0;border-left:0;border-top:1px solid var(--mar-line)}
  .mar-compact-steps li:first-child{border-top:0}
  .mar-term-map{grid-template-columns:1fr}
  .mar-term-detail summary{grid-template-columns:70px minmax(0,1fr) auto;gap:9px}
  .mar-term-detail summary strong{font-size:15px}
  .mar-term-detail summary span{font-size:12px}
  .mar-term-detail>p{padding:0 36px 20px 0;font-size:14px}
  .mar-faq-item summary{min-height:66px;font-size:15px}
  .mar-faq-item>div{padding-right:20px}
  .mar-table-wrap{border:0;background:transparent}
  .mar-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .mar-table,.mar-table tbody,.mar-table tr,.mar-table th,.mar-table td{display:block;width:100%}
  .mar-table tr{margin-bottom:14px;border:1px solid var(--mar-line);background:#fff}
  .mar-table tbody th{padding:14px 15px;border-bottom:1px solid var(--mar-line);background:var(--mar-soft);font-size:15px}
  .mar-table td{display:grid;grid-template-columns:minmax(96px,.42fr) minmax(0,1fr);gap:12px;padding:11px 15px;font-size:13px}
  .mar-table td::before{content:attr(data-label);color:var(--mar-muted);font-weight:800}
  .mar-report-cover{max-width:320px;margin-inline:auto}
  .mar-channel-logo-image{width:34px;height:34px}
  .mar-channel-logo{min-width:30px;height:30px;padding-inline:7px}
}