/* ===== 株式会社協松機工 サンプルLP ===== */
:root{
  --orange:#F07E1E;
  --orange-d:#D96A0C;
  --navy:#0F3F80;
  --navy-d:#0A2F63;
  --ink:#15191E;
  --ink-2:#1D232A;
  --gray:#5C666F;
  --line:#E3E7EB;
  --bg:#fff;
  --max:1180px;
  --ff:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;
  --ff-en:"Barlow Condensed","Jost",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;overflow-x:clip}
body{
  margin:0;font-family:var(--ff);color:var(--ink);background:var(--bg);
  line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased;
  word-break:keep-all;overflow-wrap:anywhere;overflow-x:clip;padding-top:36px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.35;font-weight:900;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---- sample banner (AG様と同じ仕様) ---- */
.demo-banner{
  position:fixed;top:0;left:0;width:100%;z-index:200;height:36px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(90deg,#ff7a18,#f25c05);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  box-shadow:0 1px 6px rgba(0,0,0,.2);
  text-decoration:none;cursor:pointer;transition:filter .2s;
}
.demo-banner:hover{filter:brightness(1.08)}
.demo-banner:hover .demo-banner__by{background:rgba(255,255,255,.35)}
.demo-banner__icon{font-size:14px}
.demo-banner__by{
  margin-left:6px;padding:2px 10px;border-radius:999px;
  background:rgba(255,255,255,.22);font-size:12px;font-weight:700;letter-spacing:.04em;
  transition:background .2s;
}
@media(max-width:520px){
  .demo-banner{font-size:11px;gap:5px;padding:0 8px;text-align:center;white-space:nowrap}
  .demo-banner__by{font-size:10px;padding:1px 7px;margin-left:3px}
  .demo-banner .dn-sp{display:none}
}

/* ---- header ---- */
.header{
  position:sticky;top:36px;z-index:50;background:#fff;
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:28px;padding:12px clamp(16px,3vw,34px);
}
.logo{display:flex;align-items:center;gap:11px;margin-right:auto}
.logo-mark{width:38px;height:38px;flex:none}
.lm-hex{stroke:var(--orange);stroke-width:4.5;fill:none}
.lm-s{fill:var(--orange);stroke:none}
.logo-text{font-weight:900;font-size:19px;letter-spacing:.04em;white-space:nowrap}
.nav{display:flex;gap:clamp(14px,2vw,30px);font-size:14.5px;font-weight:500}
.nav a{position:relative;padding:4px 0;color:#272F38}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--orange);transition:right .25s}
.nav a:hover::after{right:0}
.btn-head{
  display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff;
  font-weight:700;font-size:14.5px;padding:11px 22px;border-radius:999px;white-space:nowrap;
  box-shadow:0 6px 16px rgba(240,126,30,.28);transition:background .2s,transform .2s;
}
.btn-head:hover{background:var(--orange-d);transform:translateY(-1px)}
.btn-head .ico{width:17px;height:17px}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- hero ---- */
.hero{position:relative;min-height:min(84vh,680px);display:flex;align-items:center;overflow:hidden}
.hero__bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(100deg,rgba(8,26,50,.88) 0%,rgba(10,35,66,.62) 46%,rgba(10,35,66,.18) 74%,rgba(10,35,66,.1) 100%),
    url('images/hero.jpg'),
    linear-gradient(140deg,#1B4F8C,#0C2744 55%,#143A63);
  background-size:cover,cover,cover;background-position:center,center 32%,center;
}
.hero__inner{position:relative;width:100%;max-width:var(--max);margin:0 auto;padding:clamp(56px,7vw,92px) clamp(18px,4vw,34px);color:#fff}
.hero__eyebrow{font-family:var(--ff-en);font-size:15px;letter-spacing:.42em;font-weight:600;color:#fff;opacity:.92;margin-bottom:18px}
.hero__title{
  font-size:clamp(40px,6.6vw,74px);line-height:1.18;letter-spacing:.015em;font-weight:900;
  text-shadow:0 4px 26px rgba(4,16,32,.6);
}
.hero__lead{margin-top:26px;max-width:30em;font-size:clamp(14.5px,1.35vw,17px);line-height:2.05;font-weight:500;text-shadow:0 2px 14px rgba(4,16,32,.6)}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:15px;padding:15px 30px;border-radius:999px;transition:.22s}
.btn--orange{background:var(--orange);color:#fff;box-shadow:0 10px 26px rgba(240,126,30,.35)}
.btn--orange:hover{background:var(--orange-d);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid rgba(255,255,255,.65);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.14)}
.btn--line{border:1.5px solid rgba(255,255,255,.55);color:#fff;border-radius:4px;padding:14px 30px}
.btn--line:hover{background:#fff;color:var(--ink)}
.btn--xl{font-size:clamp(16px,1.6vw,19px);padding:20px 44px;border-radius:8px}
.arw{transition:transform .22s}
.btn:hover .arw{transform:translateX(4px)}
.ico{width:20px;height:20px;flex:none}

/* ---- strip ---- */
.strip{background:#fff;border-bottom:1px solid var(--line)}
.strip__list{
  max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);
  padding:clamp(18px,2.4vw,26px) clamp(18px,4vw,34px);
}
.strip__list li{
  display:flex;align-items:center;justify-content:center;gap:14px;text-align:left;
  font-weight:700;font-size:clamp(13px,1.25vw,15.5px);line-height:1.5;
}
.strip__list li+li{border-left:1px solid var(--line)}
.s-ico{width:34px;height:34px;color:var(--orange);flex:none;stroke-width:1.7}

/* ---- section head ---- */
.sec-head{
  max-width:var(--max);margin:0 auto;padding:clamp(56px,7vw,92px) clamp(18px,4vw,34px) clamp(26px,3.4vw,40px);
  display:flex;gap:clamp(24px,5vw,70px);align-items:flex-end;flex-wrap:wrap;
}
.sec-head--center{flex-direction:column;align-items:center;text-align:center;gap:16px}
.eyebrow{font-family:var(--ff-en);font-size:14px;letter-spacing:.3em;font-weight:700;color:var(--orange);margin-bottom:6px}
.eyebrow--light{color:var(--orange)}
.sec-title{font-size:clamp(30px,4vw,44px);letter-spacing:.04em}
.sec-desc{flex:1;min-width:min(100%,320px);color:var(--gray);font-size:15px;line-height:2.05;max-width:46em}

/* ---- service cards ---- */
.cards{display:grid;grid-template-columns:repeat(4,1fr)}
.card{
  position:relative;min-height:clamp(290px,30vw,340px);display:flex;align-items:flex-end;
  background-image:linear-gradient(to top,rgba(8,14,22,.94) 0%,rgba(8,14,22,.72) 34%,rgba(8,14,22,.18) 70%,rgba(8,14,22,.05) 100%),var(--img),linear-gradient(150deg,#2B3845,#12191F);
  background-size:cover;background-position:center;color:#fff;overflow:hidden;
}
.card::after{content:"";position:absolute;inset:0;background:var(--orange);opacity:0;transition:opacity .3s;mix-blend-mode:multiply}
.card:hover::after{opacity:.16}
.card__body{position:relative;padding:clamp(20px,2.2vw,28px);z-index:1}
.card__body h3{font-size:clamp(16px,1.6vw,19px);margin-bottom:10px;letter-spacing:.03em}
.card__body p{font-size:13.5px;line-height:1.85;color:#D2D8DE}

/* ---- works ---- */
.works{background:#F5F7F9}
.works__grid{
  max-width:var(--max);margin:0 auto;padding:0 clamp(18px,4vw,34px);
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,22px);
}
.work{
  margin:0;position:relative;aspect-ratio:4/3;border-radius:6px;overflow:hidden;
  background-image:linear-gradient(to top,rgba(8,14,22,.9),rgba(8,14,22,.1) 60%),var(--img),linear-gradient(150deg,#39485A,#182029);
  background-size:cover;background-position:center;color:#fff;display:flex;align-items:flex-end;
}
.work figcaption{padding:16px;font-size:13.5px;font-weight:700;line-height:1.6}
.work__tag{display:block;font-size:11px;font-weight:700;color:var(--orange);letter-spacing:.14em;margin-bottom:4px}
.works__note{max-width:var(--max);margin:18px auto 0;padding:0 clamp(18px,4vw,34px) clamp(56px,7vw,88px);color:#8A949D;font-size:12.5px}

/* ---- about ---- */
.about{
  position:relative;color:#fff;
  background-image:linear-gradient(95deg,rgba(10,14,18,.96) 0%,rgba(10,14,18,.86) 42%,rgba(10,14,18,.45) 72%,rgba(10,14,18,.3) 100%),url('images/about.jpg'),linear-gradient(140deg,#1A222B,#0B1116);
  background-size:cover;background-position:center,center 35%,center;
}
.about__inner{max-width:var(--max);margin:0 auto;padding:clamp(64px,8vw,110px) clamp(18px,4vw,34px)}
.about__title{font-size:clamp(28px,4.2vw,46px);line-height:1.3;margin-bottom:26px}
.about__text{max-width:34em;color:#D4DAE0;font-size:15px;line-height:2.1;margin-bottom:34px}

/* ---- area ---- */
.area{display:grid;grid-template-columns:1.18fr 1fr}
.area__photo{
  min-height:clamp(260px,28vw,340px);
  background-image:url('images/fleet.jpg'),linear-gradient(140deg,#4A5A6B,#1C242D);
  background-size:cover;background-position:center;
}
.area__panel{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-d) 100%);color:#fff;
  padding:clamp(34px,4.4vw,58px) clamp(24px,4vw,56px);display:flex;flex-direction:column;justify-content:center;
  position:relative;overflow:hidden;
}
.area__panel::after{
  content:"";position:absolute;right:-30px;top:50%;transform:translateY(-50%);
  width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.06);
}
.area__title{font-size:clamp(21px,2.5vw,30px);line-height:1.5;margin-bottom:16px;position:relative}
.area__panel p{color:#CBD8E8;font-size:14.5px;line-height:2;position:relative}
.area__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;position:relative}
.area__tags li{border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:4px 14px;font-size:12.5px;font-weight:500}

/* ---- company ---- */
.table{max-width:860px;margin:0 auto;padding:0 clamp(18px,4vw,34px) clamp(56px,7vw,88px);width:100%;border-collapse:collapse;font-size:14.5px}
.table th,.table td{text-align:left;padding:16px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.table th{width:150px;font-weight:700;color:var(--ink);white-space:nowrap}
.table td{color:#3C454E}
.table a{color:var(--orange);font-weight:700}
.tbd{display:inline-block;margin-left:6px;color:#A6AEB6;font-size:12.5px}

/* ---- faq ---- */
.faq{background:#F5F7F9}
.faq__list{max-width:860px;margin:0 auto;padding:0 clamp(18px,4vw,34px) clamp(56px,7vw,88px)}
.faq details{background:#fff;border:1px solid var(--line);border-radius:6px;margin-bottom:12px;overflow:hidden}
.faq summary{
  cursor:pointer;list-style:none;padding:18px 52px 18px 22px;font-weight:700;font-size:15px;position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--orange);border-bottom:2px solid var(--orange);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{padding:0 22px 20px;color:var(--gray);font-size:14.5px;line-height:2}

/* ---- contact ---- */
.contact{
  color:#fff;
  background-image:linear-gradient(90deg,rgba(10,14,18,.95),rgba(10,14,18,.8)),url('images/contact.jpg'),linear-gradient(140deg,#1A222B,#0B1116);
  background-size:cover;background-position:center;
}
.contact__inner{
  max-width:var(--max);margin:0 auto;padding:clamp(48px,6vw,80px) clamp(18px,4vw,34px);
  display:grid;grid-template-columns:1fr auto;gap:clamp(24px,4vw,56px);align-items:center;
}
.contact__title{font-size:clamp(24px,3.2vw,38px);margin-bottom:12px}
.contact__lead p{color:#C8CFD6;font-size:14.5px}
.contact__act{display:flex;flex-direction:column;align-items:flex-end;gap:16px}
.contact__tel{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.contact__tel .ico{width:22px;height:22px;color:var(--orange)}
.tel-num{font-family:var(--ff-en);font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:.04em}
.tel-num.tbd{font-family:var(--ff);font-size:14px;font-weight:500;color:#9AA3AB;margin:0}
.tel-time{border-left:1px solid rgba(255,255,255,.3);padding-left:12px;font-size:11.5px;line-height:1.6;color:#AEB7BF}

/* ---- footer ---- */
.footer{background:#0D1217;color:#9AA4AD;font-size:13px}
.footer__inner{
  max-width:var(--max);margin:0 auto;padding:clamp(32px,4vw,48px) clamp(18px,4vw,34px);
  display:flex;gap:28px;justify-content:space-between;align-items:center;flex-wrap:wrap;
}
.footer__brand{display:flex;align-items:center;gap:13px}
.logo-mark--ft{width:42px;height:42px}
.footer__brand strong{display:block;color:#fff;font-size:16px;letter-spacing:.04em}
.footer__brand small{font-size:11.5px;letter-spacing:.05em}
.footer__nav{display:flex;gap:20px;flex-wrap:wrap}
.footer__nav a:hover{color:var(--orange)}
.copy{text-align:center;padding:14px;border-top:1px solid rgba(255,255,255,.08);font-size:11.5px}

/* ---- responsive ---- */
@media (max-width:960px){
  .nav{
    position:fixed;inset:0 0 auto;top:36px;height:calc(100dvh - 36px);background:rgba(14,18,23,.97);
    flex-direction:column;justify-content:center;align-items:center;gap:26px;font-size:19px;
    transform:translateX(100%);transition:transform .3s,visibility .3s;visibility:hidden;z-index:60;
  }
  .nav a{color:#fff}
  .nav.open{transform:none;visibility:visible}
  .burger{display:block;z-index:70}
  .header{gap:12px}
  .btn-head{padding:10px 16px;font-size:13px}
  .logo-text{font-size:16px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .works__grid{grid-template-columns:repeat(2,1fr)}
  .area{grid-template-columns:1fr}
  .contact__inner{grid-template-columns:1fr}
  .contact__act{align-items:flex-start}
  .contact__tel{justify-content:flex-start}
}
@media (max-width:430px){
  .btn-head{padding:9px 13px;font-size:12px;gap:5px}
  .btn-head .ico{width:15px;height:15px}
  .logo-mark{width:32px;height:32px}
  .logo-text{font-size:14.5px}
  .header{padding:10px 12px;gap:8px}
}
@media (max-width:640px){
  .strip__list{grid-template-columns:repeat(2,1fr);gap:16px 0}
  .strip__list li{justify-content:flex-start;padding:6px 10px}
  .strip__list li+li{border-left:0}
  .strip__list li:nth-child(even){border-left:1px solid var(--line)}
  .cards{grid-template-columns:1fr}
  .works__grid{grid-template-columns:1fr}
  .hero__title{font-size:clamp(34px,9vw,46px)}
  .table th{width:104px;font-size:13px}
  .footer__inner{flex-direction:column;align-items:flex-start}
}

/* ---- reveal ---- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---- contact: IG DM + 電話 ---- */
.contact__note{color:#8F99A2;font-size:12px;text-align:right}
.footer__nav .footer__ig{display:inline-flex;align-items:center;gap:6px}
.footer__nav .footer__ig .ico{width:16px;height:16px}
@media (max-width:960px){ .contact__note{text-align:left} }