:root{
  --navy:#1e4f9a;
  --blue:#2a6db5;
  --cyan:#3fa9d9;
  --cyan-soft:#9ad6f1;
  --gray-bg:#e9eef2;
  --ink:#333;
  --ink-sub:#555;
}
body{font-family:"Noto Sans JP",sans-serif;color:var(--ink);line-height:1.9;letter-spacing:.04em;-webkit-font-smoothing:antialiased}
a{color:var(--blue)}a:hover{color:var(--navy)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1000px}
.note{font-size:.7rem;color:#666;line-height:1.6}
.text-navy{color:var(--navy)!important}
.text-cyan{color:var(--cyan)!important}

/* hero */
.hero{background:linear-gradient(180deg,#d9eefb 0%,#f2f9fd 70%,#fff 100%);overflow:hidden}
.hero__img{-webkit-mask-image:linear-gradient(to right,#000 75%,transparent);mask-image:linear-gradient(to right,#000 75%,transparent);width:100%}
.hero__title{color:var(--navy);font-weight:700;font-size:clamp(1.5rem,3.2vw,2.6rem);line-height:1.5;letter-spacing:.06em}
.lead-copy{font-size:.95rem;line-height:2.2}

/* concept */
.bg-soft{background:var(--gray-bg)}
.bg-extend-right{position:relative}
.bg-extend-right::after{content:"";position:absolute;top:0;bottom:0;left:100%;width:100vw;background:var(--gray-bg)}
body{overflow-x:hidden}
.eyebrow{display:block;font-size:.6rem;letter-spacing:.2em;color:var(--cyan);margin-bottom:.25rem}
.concept-card__media{position:relative}
.concept-card__num{position:absolute;left:0;top:-14px;width:30px;height:30px;border:1px solid var(--cyan);border-radius:50%;font-size:.6rem;color:var(--cyan);display:flex;align-items:center;justify-content:center;background:var(--gray-bg);z-index:1}
.concept-card__vert{position:absolute;left:4px;top:24px;writing-mode:vertical-rl;font-size:.5rem;letter-spacing:.2em;color:var(--cyan)}
.concept-card__media img{width:100%}
.concept-card h3{font-size:.9rem;font-weight:500;line-height:1.7;margin:1.25rem 0 .75rem}
.concept-card p{font-size:.75rem;color:var(--ink-sub);line-height:1.9}

/* section banner */
.sec-banner{position:relative;min-height:240px;display:flex;align-items:center;overflow:hidden}
.sec-banner__img{position:absolute;inset:0;height:100%;width:100%;object-fit:cover;object-position:right center}
.sec-banner__body{position:relative;z-index:1;display:flex;gap:1.75rem;align-items:flex-start;padding:2.5rem 0}
.sec-num{flex:none;width:76px;height:76px;border:1.5px solid var(--cyan);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--cyan);font-weight:700;font-size:1.1rem;background:rgba(255,255,255,.8)}
.sec-banner h2{color:var(--navy);font-weight:700;font-size:clamp(1.35rem,2.6vw,2rem);line-height:1.5;margin-bottom:1rem}
.sec-banner p{font-size:.85rem;line-height:2;color:var(--ink);margin:0;text-shadow:0 0 8px #fff,0 0 4px #fff}
@media (max-width:767.98px){
  .sec-banner{flex-direction:column;align-items:stretch}
  .sec-banner__img{position:static;width:100%;height:180px;object-position:85% center}
  .sec-num{width:56px;height:56px;font-size:.9rem}
}

/* sub heading with rules */
.ruled-head{border-top:1px solid var(--cyan);border-bottom:1px solid var(--cyan);color:var(--cyan);text-align:center;padding:.6rem 1rem;font-size:clamp(.9rem,1.6vw,1.15rem);letter-spacing:.12em;max-width:760px;margin:0 auto}

/* labels */
.tag-label{display:inline-block;background:linear-gradient(90deg,var(--cyan),#6cc4ea);color:#fff;padding:.35rem 1.75rem;font-size:.9rem;letter-spacing:.12em}
.pill-label{display:inline-block;background:linear-gradient(90deg,var(--cyan),#6cc4ea);color:#fff;border-radius:999px;padding:.2rem 1.1rem;font-size:.85rem;letter-spacing:.08em}

/* measures */
.measures{background:#eef5fa;padding:1.75rem}
.measure-card{background:#fff;border:1px solid #cfe7f4;border-radius:8px;padding:.9rem;height:100%}
.measure-card h4{font-size:.9rem;font-weight:700;display:flex;align-items:center;gap:.5rem;margin-bottom:.6rem}
.measure-card h4 span{flex:none;width:24px;height:24px;border-radius:50%;background:var(--blue);color:#fff;font-size:.65rem;display:flex;align-items:center;justify-content:center}
.measure-card img{width:100%;aspect-ratio:204/93;object-fit:cover;margin-bottom:.6rem}
.measure-card p{font-size:.7rem;margin:0;line-height:1.7}

/* house compare */
.compare{background:linear-gradient(180deg,#eaf5fc,#f7fbfe);padding:1.75rem}
.compare-card{background:#fff;border-radius:6px;overflow:hidden;height:100%;text-align:center;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.compare-card__head{color:#fff;font-weight:700;padding:.4rem;font-size:1rem;letter-spacing:.08em}
.compare-card__head small{font-weight:400;font-size:.75rem}
.compare-card img{width:100%;aspect-ratio:234/112;object-fit:cover}
.compare-card h5{color:var(--navy);font-weight:700;font-size:1rem;margin:.75rem 0 .25rem}
.compare-card p{font-size:.75rem;line-height:1.7;padding:0 .75rem .9rem;margin:0}
.head-bad{background:#4b6074}.head-ok{background:#3aa35b}.head-best{background:#2c86d1}

/* timeline */
.tl-item .tl-img{position:relative}
.tl-item .tl-img img{width:100%}
.tl-cap{display:inline-block;background:var(--cyan);color:#fff;font-size:.7rem;padding:.15rem .6rem;margin-top:-1px}
.tl-word{font-size:clamp(2.6rem,5vw,3.6rem);font-weight:700;font-style:italic;line-height:1.1;background:linear-gradient(180deg,#2a6db5,#5fb6e3);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:.75rem}
.tl-item h4{color:var(--blue);font-size:1.05rem;font-weight:500;line-height:1.6}
.tl-item p{font-size:.75rem;line-height:1.8}
.tl{position:relative}
.tl::before{content:"";position:absolute;top:2rem;bottom:2rem;left:calc(25% - 45px);width:90px;background:var(--cyan-soft);z-index:0}
.tl-item{position:relative;z-index:1}
.tl-connector{height:56px}
@media (min-width:992px){.tl::before{left:calc(3rem + (100% - 6rem) * .25 - 45px)}}
@media (max-width:767.98px){.tl::before{display:none}.tl-connector{width:40px;height:36px;margin:0 auto;background:var(--cyan-soft)}}

/* points */
.quote-lines div{border-bottom:1px solid var(--cyan);color:var(--cyan);text-align:center;padding:.55rem 0;font-size:clamp(.95rem,1.6vw,1.15rem);letter-spacing:.12em}
.quote-lines div:first-child{border-top:1px solid var(--cyan)}
.point{text-align:center;margin-top:1.75rem}
.point__label{display:inline-block;color:var(--cyan);font-size:.65rem;letter-spacing:.1em;line-height:1.3}
.point__label b{display:block;font-weight:400;font-size:1rem;border-top:1px solid var(--cyan);margin-top:2px}
.point h4{color:var(--navy);font-weight:700;font-size:1.15rem;margin:.25rem 0 .5rem}
.point p{font-size:.75rem;text-align:left;line-height:1.9}

/* access */
.access-box{background:#e8eff3;padding:1rem;height:100%}
.access-box h4{color:var(--navy);font-weight:700;font-size:1.05rem;display:flex;align-items:center;gap:.6rem;margin-bottom:.75rem}
.access-box h4 i{width:36px;height:36px;border:1.5px solid var(--navy);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem}
.access-card{background:#fff;border-radius:6px;padding:.75rem;height:100%;display:flex;flex-direction:column}
.access-card__txt{font-weight:700;color:var(--navy);font-size:.85rem;line-height:1.5;flex:1}
.access-card__txt small{display:block;font-weight:400;font-size:.65rem;color:var(--ink)}
.access-card__txt em{font-style:normal;font-size:1.35rem}
.access-card img{width:100%;aspect-ratio:132/76;object-fit:cover;margin-top:.5rem}
.near h5{font-size:.75rem;font-weight:700;color:var(--navy);margin:.4rem 0 0}
.near .walk{color:var(--navy);font-weight:700;font-size:.8rem;line-height:1.3}
.near .walk em{font-style:normal;font-size:1.3rem}
.near small{font-size:.6rem;display:block}

.sub-title{color:var(--blue);font-weight:700;font-size:1.05rem}

/* nature */
.nature-card{background:#eef3f6;height:100%}
.nature-card img{width:100%;aspect-ratio:240/127;object-fit:cover}
.nature-card div{padding:1.1rem 1rem 1.5rem}
.nature-card h4{color:var(--cyan);font-weight:700;font-size:.95rem;margin-bottom:.35rem}
.nature-card p{font-size:.78rem;line-height:1.9;margin:0}

/* technology */
.tech{font-family:"Noto Serif JP",serif;background:var(--gray-bg)}
.tech__en{font-size:1rem;letter-spacing:.06em;color:#3c5566}
.tech__title{font-size:clamp(1.3rem,2.6vw,1.8rem);letter-spacing:.12em;color:#2f4a5c;padding-bottom:.6rem;border-bottom:1px solid #8aa0ad;display:inline-block;padding-left:1rem;padding-right:1rem}
.tech__lead{font-size:clamp(.95rem,1.8vw,1.35rem);letter-spacing:.1em;color:#2f4a5c}
.tech-item img{width:100%}
.tech-item__num{font-size:1.6rem;letter-spacing:.12em;color:#2f4a5c;margin:1rem 0 .25rem;display:flex;align-items:center;gap:.6rem}
.tech-item__num span{font-size:1rem;letter-spacing:.2em}
.tech-item__num::after{content:none}
.tech-item__num i{display:inline-block;width:1px;height:1.4rem;background:#2f4a5c}
.tech-item h4{font-size:1.05rem;letter-spacing:.1em;color:#2f4a5c;margin-bottom:1rem}
.tech-item p{font-family:"Noto Sans JP",sans-serif;font-size:.78rem;line-height:2;margin-bottom:.5rem}
.tech-item .note{font-family:"Noto Sans JP",sans-serif}

/* jQuery helpers */
.js-fade{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.js-fade.is-in{opacity:1;transform:none}
.pagetop{position:fixed;right:16px;bottom:16px;width:48px;height:48px;border-radius:50%;background:var(--navy);color:#fff;border:0;display:none;align-items:center;justify-content:center;font-size:1.2rem;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.pagetop:hover{background:var(--blue)}

.src-btn{display:block;transition:opacity .2s}.src-btn:hover{opacity:.75}

.float-btn{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:1000;width:min(340px,72vw);display:block;transition:transform .2s,opacity .2s}
.float-btn img{width:100%;height:auto;display:block}
.float-btn:hover{transform:translateX(-50%) translateY(-3px);opacity:.92}
body{padding-bottom:110px}
@media (max-width:575.98px){.float-btn{bottom:10px;width:68vw}.pagetop{bottom:84px}body{padding-bottom:90px}}