:root{
    --navy:#1B2A33;
    --bg:#FFFFFF;
    --panel:#F3F8FC;
    --teal:#4169E1;
    --teal-dark:#1E3A93;
    --amber:#F2994A;
    --mint:#00CED1;
    --cyan:#00FFFF;
    --coral:#E2604F;
    --slate:#5B6B70;
    --slate-light:#8B9A9E;
    --line:#DCE6EE;
    --plate:#EAF2FA;
    --display: 'Noto Sans JP', sans-serif;
    --body: 'Noto Sans JP', sans-serif;
    --mono: 'Noto Sans JP', sans-serif;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth; font-size:20px;}
  body{
    font-family:var(--body);
    background:var(--bg);
    color:var(--navy);
    line-height:1.75;
    font-size:1rem;
    -webkit-font-smoothing:antialiased;
  }
  img,svg{display:block; max-width:100%;}
  a{color:inherit; text-decoration:none;}
  ul{list-style:none;}
  .wrap{max-width:1120px; margin:0 auto; padding:0 24px;}
  h1,h2,h3{font-family:var(--display); letter-spacing:.01em;}

  /* ---------- nameplate signature component ---------- */
  .plate{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:linear-gradient(180deg,#F2F7FC,#E7F0F9);
    border:1px solid var(--line);
    border-radius:3px;
    padding:8px 16px 8px 22px;
    font-family:var(--mono);
    font-size:.85rem;
    letter-spacing:.05em;
    color:var(--slate);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.6), 0 1px 2px rgba(20,40,40,.06);
  }
  .plate::before,.plate::after{
    content:"";
    position:absolute;
    width:4px; height:4px;
    border-radius:50%;
    background:#B7C9E0;
    box-shadow: inset 0 1px 1px rgba(0,0,0,.25);
    top:50%; transform:translateY(-50%);
  }
  .plate::before{ left:7px; }
  .plate::after{ display:none; }
  .plate b{color:var(--navy); font-weight:700;}
  .plate.amber b{color:var(--amber);}

  /* ---------- header ---------- */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .header-topbar{
    background:linear-gradient(90deg, var(--teal-dark), var(--teal) 55%, var(--mint));
    color:#fff;
    font-size:.8rem;
    letter-spacing:.04em;
    text-align:center;
    padding:7px 0;
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    gap:20px;
    min-height:80px;
    flex-wrap:nowrap;
  }
  .logo{
    display:flex; align-items:center; gap:11px;
    font-family:var(--display); font-weight:900; font-size:1.28rem;
    color:var(--navy);
    flex-shrink:0; white-space:nowrap;
  }
  .logo-mark{
    width:36px; height:36px;
    flex-shrink:0;
    display:block;
    object-fit:contain;
  }
  .logo small{
    display:block; font-family:var(--mono); font-weight:400;
    font-size:.6rem; letter-spacing:.13em; color:var(--slate); white-space:nowrap;
  }
  nav.links{
    display:flex; gap:20px; font-size:.9rem; font-weight:500;
    white-space:nowrap; flex-shrink:0;
  }
  nav.links a{position:relative; padding:6px 0; color:var(--navy); flex-shrink:0;}
  nav.links a::after{
    content:""; position:absolute; left:0; right:100%; bottom:0; height:2px;
    background:var(--teal); transition:right .2s ease;
  }
  nav.links a:hover{color:var(--teal-dark);}
  nav.links a:hover::after{right:0;}
  .header-cta{display:flex; align-items:center; gap:12px; flex-shrink:0;}
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:11px 22px;
    border-radius:6px;
    font-weight:700; font-size:1rem;
    font-family:var(--body);
    border:1px solid transparent;
    cursor:pointer;
    white-space:nowrap;
    position:relative; overflow:hidden;
    transition:transform .15s ease, box-shadow .15s ease;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{background:linear-gradient(135deg, #191970, #2E2E9E); color:#fff;}
  .btn-primary:hover{box-shadow:0 10px 22px rgba(25,25,112,.4);}
  .btn-primary::after{
    content:""; position:absolute; inset:0; border-radius:inherit;
    background:radial-gradient(circle, rgba(255,255,255,.55) 0%, transparent 60%);
    transform:scale(0); opacity:0; transition:transform .5s ease, opacity .5s ease;
  }
  .btn-primary:active::after{transform:scale(2.4); opacity:1; transition:0s;}
  .btn-ghost{background:transparent; color:var(--navy); border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--teal); color:var(--teal-dark); background:var(--panel);}
  .btn-dark{background:var(--navy); color:#fff;}
  .tel{font-family:var(--mono); font-weight:700; font-size:1.05rem;}

  .hamburger{
    display:none; flex-direction:column; justify-content:center; gap:5px;
    width:38px; height:38px; border-radius:6px; border:1px solid var(--line);
    background:#fff; cursor:pointer; flex-shrink:0;
  }
  .hamburger span{width:18px; height:2px; background:var(--navy); margin:0 auto; transition:transform .2s ease, opacity .2s ease;}
  .hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .hamburger.open span:nth-child(2){opacity:0;}
  .hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .mobile-menu{
    max-height:0; overflow:hidden;
    background:#fff; border-bottom:1px solid var(--line);
    transition:max-height .3s ease;
  }
  .mobile-menu.open{max-height:420px;}
  .mobile-menu-inner{padding:14px 24px 22px; display:flex; flex-direction:column; gap:2px;}
  .mobile-menu a{
    padding:13px 4px; font-size:1rem; font-weight:500; color:var(--navy);
    border-bottom:1px solid var(--line);
  }
  .mobile-menu .mobile-cta{display:flex; gap:10px; margin-top:14px;}

  /* ---------- hero (full-bleed slideshow) ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    min-height:620px;
    display:flex;
    align-items:flex-start;
    color:#fff;
  }
  .hero-slideshow{position:absolute; inset:0; z-index:0;}
  .hero-slideshow .slide{
    position:absolute; inset:0;
    opacity:0;
    transition:opacity 1.4s ease;
  }
  .hero-slideshow .slide.active{opacity:1;}
  .hero-slideshow .slide img,
  .hero-slideshow .slide video{
    width:100%; height:100%; object-fit:cover; display:block;
  }
  .slide-placeholder{width:100%; height:100%; position:relative; overflow:hidden;}
  .slide-placeholder::before{
    content:""; position:absolute; inset:0;
    background-image:repeating-linear-gradient(120deg, rgba(255,255,255,.05) 0 2px, transparent 2px 26px);
  }
  .hero-slideshow .slide:nth-child(1) .slide-placeholder{background:linear-gradient(135deg,#0F1E4E,#4169E1 58%,#00CED1);}
  .hero-slideshow .slide:nth-child(2) .slide-placeholder{background:linear-gradient(135deg,#083B45,#00CED1 55%,#7CF5F0);}
  .hero-slideshow .slide:nth-child(3) .slide-placeholder{background:linear-gradient(135deg,#152B6E,#4169E1 55%,#00FFFF);}
  .hero-slideshow .slide:nth-child(4) .slide-placeholder{background:linear-gradient(135deg,#0C2F5C,#2E86D8 55%,#00CED1);}

  .hero-scrim{
    position:absolute; inset:0; z-index:1;
    background:
      linear-gradient(100deg, rgba(10,18,46,.86) 0%, rgba(10,18,46,.58) 40%, rgba(10,18,46,.18) 66%, transparent 100%),
      linear-gradient(0deg, rgba(6,14,32,.55) 0%, transparent 42%);
  }
  .hero-airflow{
    position:absolute; inset:0; z-index:2; overflow:hidden; pointer-events:none;
  }
  .hero-airflow .stream{
    position:absolute; left:-20%; height:2px; border-radius:2px;
    background:linear-gradient(90deg, transparent, rgba(0,255,255,.6) 35%, rgba(200,255,255,.75) 55%, transparent);
    filter:blur(.4px);
    animation-name:drift; animation-timing-function:ease-in-out; animation-iteration-count:infinite;
  }
  @keyframes drift{
    0%{ transform:translateX(0) translateY(0); opacity:.5; }
    50%{ transform:translateX(10%) translateY(-16px); opacity:.9; }
    100%{ transform:translateX(0) translateY(0); opacity:.5; }
  }
  .hero-content{
    position:relative; z-index:3;
    padding:64px 0 56px;
    max-width:960px;
  }
  .eyebrow{
    display:inline-flex; align-items:center;
    font-family:var(--body); font-size:.85rem; font-weight:700; letter-spacing:.1em;
    padding:7px 16px; border-radius:20px;
    margin-bottom:22px;
    background:rgba(255,255,255,.14); color:#fff; border:1px solid rgba(255,255,255,.32);
  }
  .section-head .eyebrow, .diff-card .eyebrow{
    background:var(--plate); color:var(--teal-dark); border:1px solid rgba(65,105,225,.18);
  }
  .hero h1{
    font-size:clamp(2.1rem,4vw,3.3rem);
    font-weight:700; line-height:1.3;
    color:#fff;
    letter-spacing:.02em;
    margin-bottom:20px;
  }
  .hero h1 em{
    font-style:normal; color:#191970;
    font-size:1.18em;
    -webkit-text-stroke:6px #fff;
    text-stroke:6px #fff;
    paint-order:stroke fill;
  }
  @media (max-width:480px){
    /* 12文字/行 × 26px × 字間1.02 = 318px ≦ コンテンツ幅327px(375px幅時) */
    .hero h1{font-size:1.3rem; line-height:1.6;}
    /* スマホでは拡大を等倍に、白フチを弱める */
    .hero h1 em{font-size:1em; -webkit-text-stroke:3px #fff; text-stroke:3px #fff;}
  }
  .hero p.lead{
    font-size:1.02rem; color:rgba(255,255,255,.78); max-width:32em; margin-bottom:24px;
    font-weight:300; line-height:1.9;
  }
  .hero-actions{display:flex; flex-wrap:wrap; gap:14px; margin-bottom:28px;}
  .plate-row{display:flex; flex-wrap:wrap; gap:10px;}
  .hero .plate{
    background:linear-gradient(180deg, var(--teal), var(--teal-dark));
    border:none;
    border-radius:50px;
    border-bottom:4px solid var(--teal-dark);
    padding:11px 40px 11px 24px;
    color:#fff;
    box-shadow:none;
    overflow:hidden;
    cursor:pointer;
    transition:transform .2s ease-in-out, box-shadow .2s ease-in-out, border-bottom .2s ease-in-out;
  }
  .hero .plate:active{
    transform:translateY(4px);
    box-shadow:0 0 1px rgba(0,0,0,.2);
    border-bottom:none;
  }
  .hero .plate::before{
    content:"";
    display:block;
    position:absolute;
    width:100%; height:100%;
    top:0; left:-100%;
    background-image:linear-gradient(130deg, rgba(255,255,255,0) 25%, rgba(255,255,255,.3) 50%, rgba(255,255,255,0) 55%);
    animation:plate-shine 3s infinite;
  }
  @keyframes plate-shine{
    33%{ left:100%; }
    100%{ left:100%; }
  }
  .hero .plate::after{
    content:"";
    width:5px; height:5px;
    border-top:3px solid #fff;
    border-right:3px solid #fff;
    transform:rotate(45deg) translateY(-48%);
    position:absolute;
    top:48%; right:20px;
    border-radius:1px;
    transition:.3s ease-in-out;
  }
  .hero .plate b{color:#fff; font-weight:700;}
  .hero .plate.amber{
    background:linear-gradient(180deg, #191970, #0F0F45);
    border-bottom-color:#0F0F45;
  }
  .hero .plate.amber b{color:#fff;}
  .hero .btn-ghost{border-color:rgba(255,255,255,.5); color:#fff;}
  .hero .btn-ghost:hover{background:rgba(255,255,255,.12); border-color:#fff; color:#fff;}

  .hero-dots{
    position:absolute; z-index:3; right:36px; bottom:34px;
    display:flex; gap:9px;
  }
  .slide-dot{
    width:24px; height:4px; border-radius:2px;
    background:rgba(255,255,255,.35);
    border:none; cursor:pointer; padding:0;
    transition:background .2s ease;
  }
  .slide-dot.active{background:#fff;}

  /* ---------- section shells ---------- */
  section{padding:60px 0;}
  .section-head{margin-bottom:44px;}
  .section-head h2{font-size:clamp(1.8rem,2.6vw,2.2rem); font-weight:700; margin-bottom:18px; letter-spacing:.01em;}
  .section-head p{color:var(--slate); font-size:1rem; font-weight:300; line-height:1.95; max-width:56em;}
  .alt{background:var(--panel); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}

  /* trust cards */
  .trust-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    padding: 48px 24px;
    max-width: 1120px;
    margin: 0 auto;
    background: linear-gradient(180deg, #f6fafb 0%, #ffffff 100%);
  }
  .trust-card {
    position: relative;
    overflow: hidden;
    padding: 36px 34px 32px;
    background: #ffffff;
    border: 1px solid rgba(20, 70, 80, 0.12);
    border-radius: 22px;
    box-shadow: 0 18px 40px rgba(10, 38, 48, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }
  .trust-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, #22aeb3, #0b2b3a);
  }
  .trust-card::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -60px;
    width: 180px;
    height: 180px;
    background: rgba(34, 174, 179, 0.08);
    border-radius: 50%;
  }
  .trust-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 52px rgba(10, 38, 48, 0.14);
  }
  .trust-label {
    position: relative; z-index: 1;
    display: inline-block;
    margin-bottom: 14px;
    padding: 6px 14px;
    background: rgba(34, 174, 179, 0.12);
    color: #168b91;
    font-size: 14px;
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: 0.04em;
  }
  .trust-title {
    position: relative;
    z-index: 1;
    margin: 0 0 14px;
    color: #082b3a;
    font-size: 20px;
    font-weight: 800;
    line-height: 1.45;
    letter-spacing: 0.03em;
  }
  .trust-title span {
    display: block;
    margin-top: 6px;
    color: #0b2b3a;
    font-size: 30px;
    font-weight: 900;
    line-height: 1.2;
  }
  .trust-text {
    position: relative;
    z-index: 1;
    margin: 0;
    color: #4d6470;
    font-size: 15px;
    line-height: 1.8;
  }
  @media (max-width: 768px) {
    .trust-section {
      grid-template-columns: 1fr;
      gap: 18px;
      padding: 36px 16px;
    }
    .trust-card {
      padding: 30px 24px 28px;
      border-radius: 18px;
    }
    .trust-title { font-size: 18px; }
    .trust-title span { font-size: 26px; }
  }

  /* pre-designed image panels (実績 / 保険 / 複数台) */
  .panel-card{
    align-self: start;
    overflow: hidden;
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 18px 40px rgba(10, 38, 48, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }
  .panel-card:hover{
    transform: translateY(-6px);
    box-shadow: 0 24px 52px rgba(10, 38, 48, 0.14);
  }
  .panel-card img{ width: 100%; height: auto; display: block; }

  /* case-type cards inside the trust strip */
  .trust-cases-head{
    grid-column: 1 / -1;
    text-align: center;
    max-width: 46em;
    margin: 26px auto 6px;
  }
  .trust-cases-head .eyebrow{
    display:inline-block;
    font-size:.72rem; font-weight:700; letter-spacing:.22em;
    color:#168b91; margin-bottom:10px;
  }
  .trust-cases-head h3{
    font-size:1.5rem; color:#082b3a; margin-bottom:10px; letter-spacing:.02em;
  }
  .trust-cases-head p{ color:#4d6470; font-size:.95rem; }
  .case-card{
    display:flex; flex-direction:column;
    padding-top:0;
    color:inherit;
  }
  .case-card .case-thumb{
    margin:0 -34px 20px;
    height:190px; overflow:hidden;
    background:#e9f1f6;
  }
  .case-card .case-thumb img{
    width:100%; height:100%; object-fit:cover;
    transition:transform .5s ease;
  }
  .case-card:hover .case-thumb img{ transform:scale(1.06); }
  .case-card .trust-title{ font-size:19px; }
  .case-card .trust-text{ flex:1 0 auto; }
  .case-card .case-more{
    position:relative; z-index:1;
    display:inline-block; margin-top:16px;
    color:#1E3A93; font-weight:700; font-size:.9rem; letter-spacing:.02em;
    transition:transform .2s ease;
  }
  .case-card:hover .case-more{ transform:translateX(4px); }
  @media (max-width: 768px){
    .case-card .case-thumb{ margin:0 -24px 18px; height:200px; }
    .trust-cases-head h3{ font-size:1.25rem; }
  }

  /* positioning — retro brutalism panel */
  .position-grid{display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:start; position:relative;}
  .position-card{
    background:#F9FCFD;
    border:3px solid #082627;
    border-radius:0;
    padding:36px;
    box-shadow:8px 8px 0 #082627;
    transition:transform .15s ease, box-shadow .15s ease;
  }
  .position-card:hover{transform:translate(-4px,-4px); box-shadow:12px 12px 0 #082627;}
  .position-grid h3{
    font-size:clamp(1.5rem,2.4vw,1.9rem); font-weight:900; line-height:1.3;
    margin-bottom:16px; color:#082627; letter-spacing:0;
  }
  .position-grid p{font-weight:500; color:#082627 !important;}
  .position-grid .no{
    display:inline-flex; align-items:center;
    font-weight:900; font-size:.95rem; letter-spacing:.02em;
    padding:8px 20px; border:3px solid #082627; border-radius:0;
    margin-bottom:22px; box-shadow:4px 4px 0 #082627;
    color:#fff; background:#28A6A5;
  }
  .position-arrow{
    position:absolute; left:50%; top:44px; transform:translate(-50%,0);
    width:48px; height:48px; border-radius:0;
    background:#F9FCFD; border:3px solid #082627;
    display:flex; align-items:center; justify-content:center;
    color:#082627; font-size:1.3rem; font-weight:900;
    box-shadow:5px 5px 0 #082627;
    z-index:1;
  }
  .divider-v{width:1px; background:var(--line);}

  /* services grid — retro brutalism */
  .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
  .unit-tag-card{
    background:#F9FCFD; border:3px solid #082627; border-radius:0;
    padding:28px 24px; position:relative;
    box-shadow:8px 8px 0 #082627;
    transition:box-shadow .15s ease, transform .15s ease;
  }
  .unit-tag-card:hover{box-shadow:12px 12px 0 #082627; transform:translate(-4px,-4px);}
  .unit-icon{
    width:44px; height:44px; border-radius:0; border:3px solid #082627;
    display:flex; align-items:center; justify-content:center; margin-bottom:20px;
    font-size:1.15rem; box-shadow:3px 3px 0 #082627;
    color:#fff; background:#28A6A5;
  }
  .unit-tag-card h4{font-size:1.22rem; margin-bottom:12px; font-family:var(--display); font-weight:900; color:#082627; line-height:1.4;}
  .unit-tag-card p{font-size:.94rem; color:#082627; margin-bottom:20px; font-weight:500; line-height:1.85;}
  .unit-tag-card .plate{
    width:100%; justify-content:space-between; font-size:.8rem;
    background:#fff; color:#082627; border:3px solid #082627; border-radius:0;
    box-shadow:4px 4px 0 #082627; padding:9px 16px;
  }
  .unit-tag-card .plate::before, .unit-tag-card .plate::after{display:none;}
  .unit-tag-card .plate b{color:#082627;}
  .room-ac-note{
    margin-top:24px;
    background:#F9FCFD; border:3px solid #082627; border-radius:0;
    padding:20px 24px; box-shadow:6px 6px 0 #082627;
    font-size:.96rem; color:#082627; line-height:1.8;
  }
  .room-ac-note strong{color:#28A6A5;}

  /* differentiators — retro brutalism (custom palette) */
  .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
  .diff-card{
    background:#F9FCFD; border:3px solid #082627; border-radius:0; padding:30px;
    box-shadow:8px 8px 0 #082627;
    transition:box-shadow .15s ease, transform .15s ease;
  }
  .diff-card:hover{box-shadow:12px 12px 0 #082627; transform:translate(-4px,-4px);}
  .diff-card .mark{
    font-family:var(--mono); font-size:.86rem; font-weight:700; letter-spacing:.1em;
    margin-bottom:18px; display:block; color:#28A6A5;
  }
  .diff-card h4{font-size:1.22rem; margin-bottom:12px; font-weight:900; color:#082627;}
  .diff-card p{font-size:.94rem; color:#082627; font-weight:500; line-height:1.85;}

  /* pricing table */
  table.price{width:100%; border-collapse:collapse; background:#F9FCFD; border:3px solid #082627; border-radius:0; overflow:hidden;}
  table.price thead th{
    background:#082627; color:#fff; text-align:left; font-weight:500;
    font-size:.9rem; padding:16px 20px; font-family:var(--mono); letter-spacing:.03em;
  }
  table.price tbody td{
    padding:18px 20px; border-top:1px solid #082627; font-size:1rem; font-weight:300; color:#082627;
  }
  table.price tbody tr:hover{background:#EAF6F6;}
  table.price td.price-cell{font-family:var(--mono); font-weight:700; color:#28A6A5; font-size:1.12rem;}
  .price-note{font-size:.88rem; color:#082627; opacity:.7; margin-top:16px; font-weight:300;}

  /* area coverage */
  .area-cols{display:grid; grid-template-columns:1fr 1fr; gap:40px;}
  .area-block{
    background:#F9FCFD; border:3px solid #082627; border-radius:0; padding:28px;
    box-shadow:8px 8px 0 #082627;
  }
  .area-block h4{font-family:var(--mono); font-size:.94rem; letter-spacing:.08em; color:#082627; margin-bottom:18px; text-transform:uppercase; font-weight:700;}
  .chip-wrap{display:flex; flex-wrap:wrap; gap:9px;}
  .chip{
    font-size:.88rem; padding:7px 14px; border-radius:20px;
    background:#fff; color:#28A6A5; border:2px solid #28A6A5; font-weight:500;
  }
  .area-note{margin-top:20px; font-size:.9rem; color:#082627; opacity:.65; font-weight:300;}

  /* process */
  .process-list{display:grid; grid-template-columns:repeat(6,1fr); gap:24px;}
  .process-item{
    background:#F9FCFD; border:3px solid #082627; border-radius:0;
    padding:22px 16px; text-align:left; position:relative;
    box-shadow:6px 6px 0 #082627;
  }
  .process-item:not(:last-child)::after{
    content:"→";
    position:absolute;
    top:50%; right:-21px;
    transform:translateY(-50%);
    font-size:1.3rem; font-weight:700;
    color:#082627;
    z-index:2;
    line-height:1;
  }
  @media (max-width:920px){
    .process-item::after{display:none;}
  }
  .process-item .step{
    font-family:var(--mono); font-size:1.9rem; font-weight:700; color:#28A6A5; display:block; margin-bottom:10px;
  }
  .process-item h5{font-size:1.02rem; margin-bottom:8px; font-weight:700; color:#082627;}
  .process-item p{font-size:.86rem; color:#082627; opacity:.75; font-weight:300; line-height:1.8;}

  /* case studies */
  .case-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
  .case-card{
    background:#F9FCFD; border:3px solid #082627; border-radius:0; overflow:hidden;
    box-shadow:8px 8px 0 #082627;
  }
  .case-photo{
    height:150px;
    background:repeating-linear-gradient(135deg, #E6F4F3, #E6F4F3 10px, #F1FAF9 10px, #F1FAF9 20px);
    display:flex; align-items:center; justify-content:center;
    font-family:var(--mono); font-size:.7rem; color:#082627; opacity:.6; letter-spacing:.08em;
    border-bottom:3px solid #082627;
  }
  .case-body{padding:22px;}
  .case-tag{font-family:var(--mono); font-size:.85rem; color:#28A6A5; margin-bottom:12px; display:block; font-weight:700;}
  .case-body h4{font-size:1.1rem; margin-bottom:10px; color:#082627; font-weight:700;}
  .case-body p{font-size:.95rem; color:#082627; opacity:.8;}

  /* faq */
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%; text-align:left; background:none; border:none; cursor:pointer;
    padding:22px 4px; display:flex; justify-content:space-between; align-items:center;
    font-family:var(--body); font-weight:500; font-size:1.08rem; color:var(--navy);
  }
  .faq-q::after{content:"+"; font-family:var(--mono); font-size:1.3rem; color:var(--teal-dark); transition:transform .2s ease;}
  .faq-item.open .faq-q::after{transform:rotate(45deg);}
  .faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease;}
  .faq-a p{padding:0 4px 22px; font-size:.98rem; color:var(--slate); max-width:38em;}

  /* final cta */
  .cta-final{
    background:linear-gradient(135deg, var(--teal), var(--teal-dark));
    color:#fff; border-radius:14px; padding:56px;
    display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center;
  }
  .cta-final h2{font-size:1.9rem; margin:0 0 18px;}
  .cta-final p{color:#DCEBFB; font-size:1.05rem; max-width:26em; margin:0 0 26px; line-height:1.9;}
  .cta-final .plate-row{margin-top:0;}
  .cta-final .plate{background:rgba(255,255,255,.14); border-color:rgba(255,255,255,.28); color:#DCEBFB;}
  .cta-final .plate b{color:#fff;}
  .contact-form{background:#fff; border-radius:10px; padding:34px; display:flex; flex-direction:column; gap:20px; box-shadow:0 20px 40px rgba(10,40,80,.18);}
  .contact-form > div{display:flex; flex-direction:column;}
  .contact-form input, .contact-form textarea{
    width:100%; box-sizing:border-box;
    background:var(--plate); border:1px solid var(--line); border-radius:4px; color:var(--navy);
    padding:13px 15px; font-family:var(--body); font-size:.98rem;
  }
  .contact-form input::placeholder, .contact-form textarea::placeholder{color:var(--slate); opacity:1;}
  .contact-form label{
    display:block; margin-bottom:8px;
    font-size:.9rem; font-weight:700; color:#0B2B3A;
    font-family:var(--body); letter-spacing:.02em;
  }
  .contact-form textarea{resize:vertical; min-height:90px;}
  .contact-form button{margin-top:6px;}

  /* footer */
  footer{padding:48px 0 32px; border-top:1px solid var(--line);}
  .footer-grid{display:flex; justify-content:space-between; flex-wrap:wrap; gap:24px; font-size:.95rem; color:var(--slate);}
  .footer-grid .logo{margin-bottom:10px;}

  @media (max-width:920px){
    .hero{min-height:78vh;}
    .hero-content{padding:56px 0 48px;}
    .grid-4{grid-template-columns:repeat(2,1fr);}
    .grid-3{grid-template-columns:1fr;}
    .position-grid{grid-template-columns:1fr;}
    .position-arrow{display:none;}
    .area-cols{grid-template-columns:1fr;}
    .process-list{grid-template-columns:repeat(3,1fr);}
    .case-grid{grid-template-columns:1fr;}
    .cta-final{grid-template-columns:1fr; padding:36px;}
    table.price{font-size:.82rem;}
  }
  @media (max-width:1460px){
    nav.links{display:none;}
    .hamburger{display:flex;}
  }
  @media (max-width:560px){
    .process-list{grid-template-columns:1fr 1fr;}
    .header-cta .btn-ghost{display:none;}
    .header-topbar{font-size:.68rem; padding:6px 14px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
    /* sticky header の背景を不透明に（下のセクションの透け防止） */
    header{background:#FFFFFF; backdrop-filter:none;}
    /* ヘッダーを375px幅に収める: 14+2 + ロゴ140 + 8 + 電話ボタン約144 + 8 + ハンバーガー38 + 14 ≒ 366px ≦ 375px */
    .nav{gap:8px; padding-left:14px; padding-right:14px; min-height:64px;}
    .logo{font-size:1rem; gap:8px;}
    .logo-mark{width:30px; height:30px;}
    .logo small{font-size:.5rem; letter-spacing:.08em;}
    .header-cta{gap:8px;}
    .header-cta .btn{padding:8px 12px;}
    .tel{font-size:.85rem;}
    /* 対応機種カードを1カラムに */
    .grid-4{grid-template-columns:1fr;}
    /* 料金表はスマホでは横スクロール（セル内の縦積み防止） */
    table.price{display:block; overflow-x:auto; white-space:nowrap; -webkit-overflow-scrolling:touch;}
    /* CTA: 10文字 × 26px × 字間1.01 = 263px ≦ 内側287px(375px幅・左右padding20px時) */
    .cta-final{padding:28px 20px;}
    .cta-final h2{font-size:1.3rem;}
    /* グリッド子要素が送信ボタン(nowrap)のmin-contentでカード幅を超えるのを防ぐ */
    .cta-final > *{min-width:0;}
    .contact-form{padding:20px 14px;}
    /* ボタン: 13文字 × 17.6px + padding28px = 257px ≦ フォーム内側259px */
    .contact-form button{font-size:.88rem; padding:11px 14px; white-space:normal;}
  }
  /* .section-head h2 の基底ルール(clamp)より後に置いて上書きを確実にする（スマホ幅のみ） */
  @media (max-width:480px){
    /* 最長11文字 × 28px = 308px ≦ コンテンツ幅327px(375px幅時) */
    .section-head h2{font-size:1.4rem;}
  }

  /* ---------- scroll reveal ---------- */
  .section-head, .unit-tag-card, .diff-card, .case-card, .process-item, .area-block{
    opacity:0; transform:translateY(20px);
    transition:opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1);
  }
  .section-head.is-visible, .unit-tag-card.is-visible, .diff-card.is-visible,
  .case-card.is-visible, .process-item.is-visible, .area-block.is-visible{
    opacity:1; transform:none;
  }

  @media (prefers-reduced-motion: reduce){
    .hero-airflow .stream, .mist{ animation:none !important; }
    .section-head, .unit-tag-card, .diff-card, .case-card, .process-item, .area-block{
      opacity:1 !important; transform:none !important; transition:none !important;
    }
  }

/* ===================================================================
   WordPress テーマ用の追記（js-aircon）
   =================================================================== */
/* ヒーロー動画の PC/SP 出し分け */
.js-pc-only{display:block;}
.js-sp-only{display:none;}
@media(max-width:768px){
  .js-pc-only{display:none;}
  .js-sp-only{display:block;}
}

/* <picture> をメディアコンテナ内でブロック表示に */
.hero-slideshow .slide picture,
.panel-card picture,
.case-card .case-thumb picture,
.case-photo picture{display:block; width:100%; height:100%;}
.hero-slideshow .slide picture img{width:100%; height:100%; object-fit:cover;}
.panel-card picture img{width:100%; height:auto; display:block;}
.case-card .case-thumb picture img{width:100%; height:100%; object-fit:cover;}

/* 導入事例：写真ありの場合 */
.case-photo.has-photo{
  padding:0; background:none; opacity:1;
  display:block; overflow:hidden;
}
.case-photo.has-photo img{width:100%; height:100%; object-fit:cover;}

/* Contact Form 7 を既存フォームのデザインに合わせる */
.contact-form-area .wpcf7-form{
  background:#fff; border-radius:10px; padding:34px;
  display:flex; flex-direction:column; gap:16px;
  box-shadow:0 20px 40px rgba(10,40,80,.18);
}
.contact-form-area .wpcf7-form p{margin:0; display:flex; flex-direction:column;}
.contact-form-area label{
  display:block; margin-bottom:8px;
  font-size:.9rem; font-weight:700; color:#0B2B3A; letter-spacing:.02em;
}
.contact-form-area input[type=text],
.contact-form-area input[type=email],
.contact-form-area input[type=tel],
.contact-form-area input[type=url],
.contact-form-area input[type=number],
.contact-form-area select,
.contact-form-area textarea{
  width:100%; box-sizing:border-box;
  background:var(--plate); border:1px solid var(--line); border-radius:4px; color:var(--navy);
  padding:13px 15px; font-family:var(--body); font-size:.98rem;
}
.contact-form-area textarea{resize:vertical; min-height:90px;}

/* お問い合わせCTA：フォームが縦に長いので左カラムは上揃えにする
   （中央揃えのままだと上下に大きな余白ができる） */
#contact .cta-final{ align-items:start; }

/* デスクトップではフォームを2カラム化して高さを圧縮 */
@media (min-width:821px){
  /* フォーム側の列を広げないと2カラムが窮屈になる */
  #contact .cta-final{ grid-template-columns:1fr 1.25fr; gap:40px; padding:48px; }

  .contact-form-area .wpcf7-form{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:14px 16px;
    align-content:start;
    padding:28px;
  }
  .contact-form-area .wpcf7-form p{ margin:0; }
  /* 相談内容（textarea）・送信ボタン・応答メッセージは全幅 */
  .contact-form-area .wpcf7-form p:has(textarea),
  .contact-form-area .wpcf7-form p:has(input[type="submit"]),
  .contact-form-area .wpcf7-response-output{ grid-column:1 / -1; }
}
.contact-form-area .wpcf7-submit{
  margin-top:6px; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:999px; border:1px solid transparent;
  font-weight:700; font-size:.92rem; letter-spacing:.02em;
  background:linear-gradient(135deg,#191970,#2E2E9E); color:#fff;
  transition:transform .2s ease, box-shadow .2s ease;
}
.contact-form-area .wpcf7-submit:hover{transform:translateY(-2px); box-shadow:0 10px 22px rgba(25,25,112,.4);}
.contact-form-area .wpcf7-spinner{margin:0 auto;}

/* 送信後メッセージ：フォームは白背景なので必ず濃色にする */
.contact-form-area .wpcf7-response-output{
  color:#0B2B3A;
  background:#F3F8FC;
  border:2px solid #B7C9E0;
  border-radius:8px;
  margin:14px 0 0;
  padding:12px 16px;
  font-size:.9rem;
  line-height:1.7;
}
/* 送信成功 */
.contact-form-area form.sent .wpcf7-response-output{
  color:#12603F; background:#EFF9F3; border-color:#2E9E6B;
}
/* 入力エラー・送信失敗 */
.contact-form-area form.invalid .wpcf7-response-output,
.contact-form-area form.unaccepted .wpcf7-response-output,
.contact-form-area form.failed .wpcf7-response-output,
.contact-form-area form.aborted .wpcf7-response-output,
.contact-form-area form.spam .wpcf7-response-output{
  color:#93231F; background:#FDF1F0; border-color:#D9534F;
}
/* 各項目の入力エラー表示 */
.contact-form-area .wpcf7-not-valid-tip{
  color:#C0392B; font-size:.82rem; font-weight:700; margin-top:6px; display:block;
}
.contact-form-area .wpcf7-not-valid{
  border-color:#D9534F;
  background:#FFF7F6;
}
@media(max-width:768px){
  .contact-form-area .wpcf7-form{padding:20px 14px;}
}

/* ===================================================================
   ヒーロー調整：フィルター除去 / 文字の縁取り / スマホ最適化
   =================================================================== */

/* 1) 画像に掛かっていた暗いフィルター（スクリム）を解除 */
.hero-scrim{ display:none; }

/* 2) 白文字を写真の上でも読めるように：細く濃い縁取り＋最小限の影
      （太い半透明の縁＋大きなぼかしは輪郭がにじむため使わない） */
.hero h1{
  paint-order: stroke fill;
  -webkit-text-stroke: 3px rgba(4,12,28,.92);
  text-stroke: 3px rgba(4,12,28,.92);
  text-shadow: 0 1px 2px rgba(4,12,28,.5);
}
.hero p.lead{
  color:#fff;
  paint-order: stroke fill;
  -webkit-text-stroke: 2px rgba(4,12,28,.9);
  text-stroke: 2px rgba(4,12,28,.9);
  text-shadow: 0 1px 2px rgba(4,12,28,.45);
}
/* eyebrowは明るい写真でも読めるよう、ピル自体を暗めに */
.hero-content .eyebrow{
  background: rgba(6,14,32,.6);
  border-color: rgba(255,255,255,.45);
  text-shadow: 0 1px 2px rgba(4,12,28,.6);
}
/* 枠線ボタンも明るい写真の上で読めるように */
.hero .btn-ghost{
  background: rgba(6,14,32,.38);
  border-color: rgba(255,255,255,.85);
  color:#fff;
  text-shadow: 0 1px 3px rgba(6,14,32,.9);
}
.hero .btn-ghost:hover{ background: rgba(6,14,32,.55); border-color:#fff; color:#fff; }
/* 見出し内の em は白フチを維持（h1のダークフチを打ち消す） */
.hero h1 em{
  -webkit-text-stroke: 6px #fff;
  text-stroke: 6px #fff;
  paint-order: stroke fill;
}

/* 3) スマホ：ヒーローが縦に伸びすぎて画像が大きく切れるのを防ぐ */
@media (max-width:768px){
  .hero{ min-height:0; }
  .hero-content{ padding:26px 0 24px; }
  .hero .eyebrow{ margin-bottom:12px; font-size:.7rem; padding:5px 11px; letter-spacing:.05em; }
  .hero h1{ margin-bottom:12px; line-height:1.45; -webkit-text-stroke-width:3px; }
  .hero p.lead{ font-size:.85rem; line-height:1.7; margin-bottom:16px; }
  .hero-actions{ gap:8px; margin-bottom:16px; }
  .hero-actions .btn{ padding:10px 14px; font-size:.88rem; }
  .plate-row{ gap:7px; }
  .hero .plate{ padding:7px 26px 7px 14px; font-size:.68rem; }
  .hero .plate::after{ right:12px; width:4px; height:4px; border-width:2px; }
  .hero-dots{ right:16px; bottom:12px; }
}
@media (max-width:768px){
  /* スマホは文字が小さいぶん、縁をさらに細くして輪郭をシャープに */
  .hero h1{ -webkit-text-stroke-width:2.5px; }
  .hero p.lead{ -webkit-text-stroke-width:1.5px; }
}
@media (max-width:480px){
  .hero h1 em{ -webkit-text-stroke:3px #fff; text-stroke:3px #fff; }
}

/* ===================================================================
   料金表：スマホでは横スクロールをやめ、1行=1カードの縦積みに
   =================================================================== */
@media (max-width:560px){
  table.price{
    display:block; width:100%;
    white-space:normal; overflow:visible;
    background:none; border:none; border-collapse:separate; border-spacing:0;
    font-size:1rem;
  }
  table.price thead{ display:none; }
  table.price tbody{ display:block; }
  table.price tbody tr{
    display:block;
    background:#F9FCFD;
    border:2px solid #082627;
    border-radius:12px;
    padding:14px 16px;
    margin-bottom:12px;
  }
  table.price tbody tr:hover{ background:#F9FCFD; }
  table.price tbody td{
    display:flex; align-items:baseline; justify-content:space-between; gap:14px;
    border:none; padding:7px 0; font-size:.9rem; text-align:right;
  }
  /* 1列目（機種名）は見出しとして単独行に */
  table.price tbody td:first-child{
    display:block; text-align:left;
    font-size:1.02rem; font-weight:700; color:#082627;
    border-bottom:1px solid rgba(8,38,39,.18);
    padding:0 0 9px; margin-bottom:4px;
  }
  /* 2列目以降は「項目名：値」の2カラム表示に */
  table.price tbody td:not(:first-child)::before{
    flex:0 0 auto; text-align:left;
    font-size:.78rem; font-weight:700; color:#5B6B70; letter-spacing:.02em;
  }
  table.price tbody td:nth-child(2)::before{ content:"参考価格"; }
  table.price tbody td:nth-child(3)::before{ content:"工事目安時間"; }
  table.price tbody td:nth-child(4)::before{ content:"主な工事内容"; }
  table.price td.price-cell{ font-size:1.05rem; }
}