@charset "UTF-8";
/* ============================================
   有限会社松本鉄工所 ReSite
   Mobile First / min-width 900px 1箇所のみ
============================================ */
:root{
  --steel-900:#181b1f;
  --steel-800:#22262c;
  --steel-100:#eef0f2;
  --white:#ffffff;
  --orange:#e8641f;
  --line:#3a4048;
  --line-light:#d5d9dd;
  --font-jp:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --font-en:"Oswald",sans-serif;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:70px;}
body{
  font-family:var(--font-jp);
  color:var(--steel-900);
  background:var(--white);
  font-size:15px;
  line-height:1.9;
  word-break:keep-all;
  line-break:strict;
  overflow-wrap:anywhere;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
.container{width:100%;max-width:1080px;margin:0 auto;padding:0 20px;}
.section{padding:70px 0;}
.pc-only{display:none;}

h1,h2,h3{text-wrap:balance;}

/* ---------- ヘッダー ---------- */
.header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(24,27,31,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:62px;padding:0 16px;width:100%;
}
.logo{display:flex;align-items:center;gap:10px;color:var(--white);flex-shrink:0;}
.logo-mark{
  font-family:var(--font-en);font-weight:600;font-size:26px;
  letter-spacing:.04em;line-height:1;color:var(--white);
  border-right:2px solid var(--orange);padding-right:10px;
  white-space:nowrap;
}
.logo-text{font-size:13px;font-weight:700;line-height:1.3;white-space:nowrap;}
.logo-text small{display:block;font-size:10px;font-weight:400;color:#aab1b8;}
.menu-btn{
  width:44px;height:44px;border:none;background:transparent;cursor:pointer;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;
}
.menu-btn span{display:block;width:24px;height:2px;background:var(--white);transition:.3s;}
.menu-btn.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.menu-btn.open span:nth-child(2){opacity:0;}
.menu-btn.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}
.gnav{
  position:fixed;top:62px;left:0;width:100%;
  background:var(--steel-900);
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.gnav.open{max-height:320px;border-bottom:1px solid var(--line);}
.gnav ul{padding:12px 20px 20px;}
.gnav a{
  display:block;padding:12px 4px;color:var(--white);font-weight:500;
  border-bottom:1px solid var(--line);
}
.gnav .nav-cta{
  margin-top:14px;background:var(--orange);text-align:center;
  border:none;border-radius:4px;padding:13px;
  font-weight:700;
}

/* ---------- ボタン ---------- */
.btn{
  display:inline-block;padding:15px 28px;border-radius:4px;
  font-weight:700;font-size:15px;text-align:center;transition:.25s;
}
.btn-primary{background:var(--orange);color:var(--white);box-shadow:0 4px 14px rgba(232,100,31,.35);}
.btn-primary:hover{background:#cf5312;transform:translateY(-2px);}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:var(--white);}
.btn-ghost:hover{background:rgba(255,255,255,.12);}

/* ---------- ヒーロー ---------- */
.hero{
  position:relative;color:var(--white);
  padding:130px 0 50px;background:var(--steel-900);
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.5;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(24,27,31,.3) 0%,rgba(24,27,31,.75) 100%);
}
.hero-inner{position:relative;z-index:1;padding:0 20px;max-width:1080px;margin:0 auto;}
.hero-eyebrow{
  font-family:var(--font-en);font-size:12px;letter-spacing:.22em;
  color:var(--orange);margin-bottom:14px;font-weight:600;
}
.hero-title{
  font-size:clamp(24px,7.6vw,32px);font-weight:900;line-height:1.4;letter-spacing:.03em;
  margin-bottom:20px;white-space:nowrap;
}
.hero-lead{font-size:15px;color:#dfe3e7;margin-bottom:30px;}
.hero-btns{display:flex;flex-direction:column;gap:12px;max-width:340px;}
.hero-spec{
  position:relative;z-index:1;margin:50px 20px 0;
  background:rgba(16,18,21,.82);border:1px solid var(--line);
  border-radius:6px;overflow:hidden;
  display:grid;grid-template-columns:1fr;
}
.hero-spec dl{
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.hero-spec dt{
  font-size:11px;color:var(--orange);font-weight:700;letter-spacing:.1em;
}
.hero-spec dd{font-size:13px;color:#e7eaed;}

/* ---------- セクション共通 ---------- */
.sec-eyebrow{
  font-family:var(--font-en);font-size:12px;font-weight:600;
  letter-spacing:.24em;color:var(--orange);margin-bottom:8px;
}
.sec-title{
  font-size:27px;font-weight:900;letter-spacing:.04em;line-height:1.4;
  margin-bottom:36px;position:relative;padding-bottom:16px;
}
.sec-title::after{
  content:"";position:absolute;left:0;bottom:0;
  width:44px;height:3px;background:var(--orange);
}
.section-dark{background:var(--steel-900);color:var(--white);}
.marker{
  background:linear-gradient(transparent 62%,rgba(232,100,31,.45) 62%);
  padding:0 2px;
}

/* ---------- 強み ---------- */
.policy-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.policy-item{
  background:var(--steel-100);border-left:4px solid var(--orange);
  padding:24px 22px;border-radius:0 6px 6px 0;
}
.policy-item h3{font-size:17px;margin-bottom:8px;}
.policy-item p{font-size:14px;}

/* ---------- 業務実績 ---------- */
.works-list{display:grid;grid-template-columns:1fr;gap:34px;}
.works-item{
  border:1px solid var(--line-light);border-radius:8px;overflow:hidden;
  background:var(--white);box-shadow:0 3px 16px rgba(24,27,31,.06);
}
.works-img{background:var(--steel-100);display:flex;justify-content:center;padding:24px;}
.works-img img{max-height:260px;width:auto;border-radius:4px;}
.works-body{padding:20px 22px 26px;}
.works-cat{
  font-size:11px;font-weight:700;color:var(--orange);
  letter-spacing:.1em;margin-bottom:4px;
}
.works-body h3{font-size:18px;margin-bottom:6px;}
.works-body p{font-size:13.5px;color:#4a5157;}

/* ---------- 会社概要 ---------- */
.company-table{width:100%;border-collapse:collapse;font-size:14px;}
.company-table th,.company-table td{
  border-bottom:1px solid var(--line);
  padding:16px 8px;text-align:left;vertical-align:top;
}
.company-table th{
  width:96px;color:var(--orange);font-weight:700;white-space:nowrap;
}
.company-table td{color:#e7eaed;}
.company-table a{border-bottom:1px dashed #7b8289;}

/* ---------- お問い合わせ ---------- */
.contact-lead{margin-bottom:34px;font-size:14px;}
.tel-link{font-weight:900;color:var(--orange);font-size:17px;}
.contact-form{
  background:var(--steel-100);border-radius:10px;
  padding:28px 20px;max-width:760px;
}
.form-row{margin-bottom:20px;}
.form-row label{
  display:block;font-size:13.5px;font-weight:700;margin-bottom:6px;
}
.req,.opt{
  display:inline-block;font-size:10px;font-weight:700;
  border-radius:3px;padding:1px 7px;margin-left:6px;vertical-align:2px;
}
.req{background:var(--orange);color:var(--white);}
.opt{background:#9aa1a8;color:var(--white);}
.form-row input,.form-row select,.form-row textarea{
  width:100%;border:1px solid var(--line-light);border-radius:5px;
  padding:12px 14px;font-size:16px;font-family:var(--font-jp);
  background:var(--white);color:var(--steel-900);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:2px solid var(--orange);border-color:var(--orange);
}
.form-submit{text-align:center;margin-top:26px;}
.form-submit .btn{width:100%;max-width:320px;border:none;cursor:pointer;font-family:var(--font-jp);}

/* ---------- サンクスページ ---------- */
.thanks-wrap{
  min-height:70vh;display:flex;align-items:center;justify-content:center;
  padding:120px 20px 80px;text-align:center;
}
.thanks-box h2{font-size:24px;margin-bottom:16px;}
.thanks-box p{font-size:14px;margin-bottom:30px;}

/* ---------- フッター ---------- */
.footer{background:var(--steel-900);color:var(--white);padding:44px 0 30px;border-top:3px solid var(--orange);}
.footer-inner{text-align:center;}
.footer-logo{
  font-family:var(--font-en);font-size:26px;font-weight:600;letter-spacing:.05em;
  margin-bottom:6px;
}
.footer-logo span{
  display:block;font-family:var(--font-jp);font-size:13px;font-weight:700;letter-spacing:.06em;
}
.footer-addr{font-size:12px;color:#aab1b8;margin:14px 0 20px;}
.copyright{font-size:11px;color:#7b8289;}

/* ============================================
   PC（900px以上）
============================================ */
@media (min-width:900px){
  body{font-size:16px;}
  .pc-only{display:inline;}
  .section{padding:100px 0;}

  .header-inner{height:72px;padding:0 32px;}
  html{scroll-padding-top:80px;}
  .menu-btn{display:none;}
  .gnav{position:static;max-height:none;background:transparent;overflow:visible;width:auto;}
  .gnav ul{display:flex;align-items:center;justify-content:flex-end;gap:6px;padding:0;}
  .gnav a{border-bottom:none;padding:8px 14px;font-size:14px;position:relative;}
  .gnav a:not(.nav-cta)::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;
    height:2px;background:var(--orange);transform:scaleX(0);transition:.25s;
  }
  .gnav a:not(.nav-cta):hover::after{transform:scaleX(1);}
  .gnav .nav-cta{margin:0 0 0 10px;padding:11px 22px;}

  .hero{padding:190px 0 80px;}
  .hero-title{font-size:56px;}
  .hero-lead{font-size:17px;}
  .hero-btns{flex-direction:row;max-width:none;}
  .hero-btns .btn{width:280px;}
  .hero-spec{grid-template-columns:repeat(3,1fr);max-width:1080px;margin:90px auto 0;}
  .hero-spec dl{border-bottom:none;border-right:1px solid var(--line);padding:22px 28px;}
  .hero-spec dl:last-child{border-right:none;}

  .sec-title{font-size:36px;}

  .policy-grid{grid-template-columns:repeat(3,1fr);}
  .works-list{grid-template-columns:repeat(3,1fr);}
  .works-item{display:flex;flex-direction:column;}
  .works-body{flex:1;}

  .company-table th{width:160px;padding:20px 12px;}
  .company-table td{padding:20px 12px;}

  .contact-form{padding:44px 48px;}
}