/* =========================================================
   三共物流有限会社 / デザインシステム
   ベースカラー #1DB5E7 ・配色パターン＝シェード（同一色相の明度違い）
   ========================================================= */
:root{
  --c50:#EAF8FD; --c100:#C7EDFB; --c200:#93DEF6; --c300:#5CCCF0;
  --c400:#1DB5E7; --c500:#159BC8; --c600:#107CA1; --c700:#0C5C77;
  --c800:#083D4F; --c900:#052430;
  --ink:#0E1A20; --ink2:#3D4C54; --ink3:#6C7B84;
  --line:#DFE7EB; --bg:#fff; --bgsoft:#F5FAFC;
  --maxw:1120px;
  --r:14px;
  --shadow:0 2px 4px rgba(5,36,48,.04),0 12px 32px rgba(5,36,48,.07);
  --font:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic Medium","Meiryo",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%;letter-spacing:.02em}
img{max-width:100%;height:auto;display:block}
a{color:var(--c600);text-underline-offset:3px}
h1,h2,h3,h4{line-height:1.5;letter-spacing:.01em;margin:0}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.4em}
li{margin-bottom:.4em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:840px;margin:0 auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- ヘッダー ---------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.hd-in{max-width:var(--maxw);margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;height:72px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.logo-mark{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--c400),var(--c600));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;letter-spacing:-.04em}
.logo-txt{font-weight:800;font-size:17px;letter-spacing:.04em;line-height:1.25}
.logo-txt small{display:block;font-weight:500;font-size:10.5px;color:var(--ink3);letter-spacing:.06em}
.gnav{margin-left:auto;display:flex;gap:20px;font-size:13.5px;font-weight:600;white-space:nowrap}
.gnav a{color:var(--ink);text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
.gnav a:hover,.gnav a[aria-current]{color:var(--c600);border-bottom-color:var(--c400)}
.hd-cta{display:flex;gap:8px;flex:none;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:14px;text-decoration:none;
  border:2px solid transparent;transition:.2s;cursor:pointer}
.btn-pri{background:var(--c400);color:#fff}
.btn-pri:hover{background:var(--c500)}
.btn-dark{background:var(--c800);color:#fff}
.btn-dark:hover{background:var(--c900)}
.btn-out{border-color:var(--c400);color:var(--c600);background:#fff}
.btn-out:hover{background:var(--c50)}
.btn-lg{padding:17px 40px;font-size:16px}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:10px;cursor:pointer;color:var(--ink);
  align-items:center;justify-content:center;padding:0}
.burger .ico-svg{width:22px;height:22px}
.burger .ico-svg:last-child,.hd.open .burger .ico-svg:first-child{display:none}
.hd.open .burger .ico-svg:last-child{display:block}

/* ---------- マーキー ヒーロー ---------- */
.hero{position:relative;overflow:hidden;background:var(--c900);color:#fff;
  padding:88px 0 96px;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;
  background:radial-gradient(900px 520px at 82% 18%,rgba(29,181,231,.30),transparent 64%),
             linear-gradient(100deg,rgba(5,36,48,.94) 0%,rgba(8,61,79,.80) 42%,rgba(12,92,119,.42) 72%,rgba(12,92,119,.30) 100%)}
.hero-photo{position:absolute;inset:0;z-index:-3;object-fit:cover;object-position:72% 50%;width:100%;height:100%;opacity:.88}
.marquee{position:absolute;left:0;right:0;z-index:-1;overflow:hidden;white-space:nowrap;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee span{display:inline-block;font-size:clamp(52px,9vw,124px);font-weight:900;line-height:1;
  letter-spacing:.02em;padding-right:.4em;color:transparent;
  -webkit-text-stroke:1.4px rgba(255,255,255,.34)}
.marquee-1{top:26px}
.marquee-1 span{animation:flow 34s linear infinite}
.marquee-2{bottom:22px;transform:rotate(-1.6deg)}
.marquee-2 span{-webkit-text-stroke:1.4px rgba(93,204,240,.62);animation:flow 44s linear infinite reverse}
.marquee-3{top:50%;transform:translateY(-50%);opacity:.5}
.marquee-3 span{font-size:clamp(70px,13vw,190px);-webkit-text-stroke:1px rgba(255,255,255,.14);animation:flow 62s linear infinite}
@keyframes flow{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.marquee span{animation:none!important}}
.hero-in{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 18px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;margin-bottom:22px}
.hero h1{font-size:clamp(30px,5.2vw,54px);font-weight:900;line-height:1.32;
  text-shadow:0 4px 30px rgba(0,0,0,.35);margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--c300)}
.hero-lead{font-size:clamp(15px,1.7vw,17.5px);max-width:640px;color:rgba(255,255,255,.88);margin-bottom:32px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px}
.fact{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:14px 20px;min-width:150px;backdrop-filter:blur(4px)}
.fact b{display:block;font-size:26px;font-weight:900;color:var(--c300);line-height:1.2}
.fact span{font-size:12px;color:rgba(255,255,255,.8)}

/* ---------- 下層ページヘッダー ---------- */
.phead{position:relative;background:linear-gradient(150deg,var(--c800),var(--c600));
  color:#fff;padding:56px 0 44px;overflow:hidden}
.phead::after{content:"";position:absolute;right:-80px;top:-90px;width:340px;height:340px;
  border-radius:50%;background:rgba(93,204,240,.2)}
.phead .wrap{position:relative;z-index:1}
.phead .en{font-size:12px;letter-spacing:.22em;font-weight:700;color:var(--c200);display:block;margin-bottom:8px}
.phead h1{font-size:clamp(24px,4vw,38px);font-weight:900}
.phead p{margin:12px 0 0;color:rgba(255,255,255,.85);font-size:14.5px;max-width:720px}

/* ---------- パンくず ---------- */
.crumb{background:var(--bgsoft);border-bottom:1px solid var(--line);font-size:12px;color:var(--ink3)}
.crumb ol{max-width:var(--maxw);margin:0 auto;padding:11px 20px;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.crumb li{margin:0}
.crumb li+li::before{content:"›";margin-right:8px;color:var(--c300)}
.crumb a{color:var(--ink3);text-decoration:none}
.crumb a:hover{color:var(--c600)}

/* ---------- セクション ---------- */
.sec{padding:78px 0}
.sec-soft{background:var(--bgsoft)}
.sec-dark{background:var(--c900);color:#fff}
.sec-dark p{color:rgba(255,255,255,.82)}
.shead{margin-bottom:38px}
.shead .en{display:block;font-size:11.5px;letter-spacing:.24em;font-weight:800;color:var(--c400);margin-bottom:8px}
.shead h2{font-size:clamp(22px,3.4vw,32px);font-weight:900}
.shead p{margin:14px 0 0;color:var(--ink2);font-size:15px}
.sec-dark .shead p{color:rgba(255,255,255,.78)}
.center{text-align:center}
.center .shead p{margin-left:auto;margin-right:auto;max-width:640px}

/* ---------- 本文（記事） ---------- */
.prose h2{font-size:clamp(20px,2.8vw,27px);font-weight:900;margin:56px 0 18px;padding-left:16px;
  border-left:6px solid var(--c400)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18.5px;font-weight:800;margin:36px 0 12px;color:var(--c700)}
.prose h4{font-size:16px;font-weight:800;margin:24px 0 8px}
.prose p,.prose li{font-size:15.5px;color:var(--ink2)}
.prose strong{color:var(--ink);background:linear-gradient(transparent 62%,var(--c100) 62%)}
.prose ul{list-style:none;padding-left:0}
.prose ul>li{position:relative;padding-left:26px}
.prose ul>li::before{content:"";position:absolute;left:4px;top:.72em;width:9px;height:9px;
  border-radius:50%;background:var(--c400)}
.prose ol{padding-left:1.4em}
.prose ol>li::marker{color:var(--c500);font-weight:800}

/* ---------- カード ---------- */
.grid{display:grid;gap:20px}
.grid>*{min-width:0}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 26px;
  transition:.22s;text-decoration:none;color:inherit;display:block}
a.card:hover{border-color:var(--c300);box-shadow:var(--shadow);transform:translateY(-3px)}
.card h3{font-size:17.5px;font-weight:800;margin-bottom:10px}
.card p{font-size:14px;color:var(--ink2);margin:0}
.card .num{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;
  background:var(--c50);color:var(--c600);font-weight:900;font-size:15px;margin-bottom:14px}
.card .ico{display:inline-grid;place-items:center;width:48px;height:48px;border-radius:13px;
  background:var(--c50);color:var(--c600);margin-bottom:15px}
.ico-svg{display:block}
.spbar .t .ico-svg{width:17px;height:17px;display:inline-block;vertical-align:-3px;margin-right:2px}
.card-img{padding:0;overflow:hidden}
.card-img img{aspect-ratio:16/10;object-fit:cover;width:100%}
.card-img .bd{padding:22px 24px}
.more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;
  font-weight:700;color:var(--c600)}
.more::after{content:"→";transition:.2s}
a.card:hover .more::after{transform:translateX(4px)}

/* ---------- 数字 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 20px;text-align:center}
.stat b{display:block;font-size:36px;font-weight:900;color:var(--c500);line-height:1.15}
.stat b i{font-style:normal;font-size:17px;margin-left:2px}
.stat span{font-size:13px;color:var(--ink2)}

/* ---------- テーブル ---------- */
.tbl{width:100%;max-width:100%;table-layout:fixed;border-collapse:collapse;font-size:14.5px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tbl th,.tbl td{padding:16px 20px;word-break:break-word;overflow-wrap:anywhere;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{width:190px;background:var(--c50);color:var(--c700);font-weight:800;white-space:nowrap}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:none}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:20px 56px 20px 22px;font-weight:800;font-size:15.5px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";display:inline-grid;place-items:center;width:26px;height:26px;
  border-radius:7px;background:var(--c400);color:#fff;font-size:13px;margin-right:12px;vertical-align:-6px}
.faq summary::after{content:"＋";position:absolute;right:22px;top:20px;color:var(--c500);font-weight:900}
.faq[open] summary::after{content:"－"}
.faq .a{padding:0 22px 22px 60px;font-size:14.5px;color:var(--ink2)}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(140deg,var(--c600),var(--c800));color:#fff;padding:64px 0;text-align:center}
.cta h2{font-size:clamp(22px,3.4vw,30px);font-weight:900;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.86);margin-bottom:26px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;align-items:center}
.tel-box{display:inline-flex;flex-direction:column;align-items:center;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.3);border-radius:14px;padding:14px 30px}
.tel-box a{color:#fff;text-decoration:none;font-size:28px;font-weight:900;letter-spacing:.03em}
.tel-box span{font-size:11.5px;color:rgba(255,255,255,.8)}

/* ---------- 関連リンク ---------- */
.rel{display:flex;flex-wrap:wrap;gap:10px}
.rel a{display:inline-block;background:#fff;border:1px solid var(--c200);color:var(--c700);
  border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:700;text-decoration:none}
.rel a:hover{background:var(--c50)}

/* ---------- フッター（サイトマップ型） ---------- */
.ft{background:var(--c900);color:#B9CBD3;font-size:13px;padding:62px 0 0}
.ft-top{display:grid;grid-template-columns:290px 1fr;gap:56px;padding-bottom:44px}
.ft-brand .logo-txt{color:#fff}
.ft-brand .logo-txt small{color:#7E97A2}
.ft-brand address{font-style:normal;line-height:2;margin:18px 0;color:#9FB6C0}
.ft-tel{font-size:23px;font-weight:900;color:#fff;text-decoration:none;letter-spacing:.03em}
.ft-map{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.ft-map h3{font-size:13px;font-weight:800;color:#fff;margin-bottom:14px;padding-bottom:9px;
  border-bottom:1px solid rgba(255,255,255,.16)}
.ft-map ul{list-style:none;padding:0;margin:0}
.ft-map li{margin-bottom:9px}
.ft-map a{color:#B9CBD3;text-decoration:none;font-size:12.8px}
.ft-map a:hover{color:var(--c300)}
.ft-btm{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;display:flex;flex-wrap:wrap;
  gap:14px;font-size:11.5px;color:#7E97A2}
.ft-btm nav{display:flex;gap:16px}
.ft-btm a{color:#7E97A2;text-decoration:none}
.ft-btm .cr{margin-left:auto}

/* ---------- スマホ固定バー ---------- */
.spbar{display:none}

/* ---------- レスポンシブ ---------- */
@media(max-width:900px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .ft-top{grid-template-columns:1fr;gap:36px}
  .ft-map{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:1080px){
  .hd-cta{display:none}
  .logo-txt small{display:none}
}
@media(max-width:920px){
  .gnav{display:none}
  .burger{display:flex}
  .hd.open .gnav{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:70}
  .hd.open .gnav a{padding:14px 0;border-bottom:1px solid var(--line)}
}
@media(max-width:768px){
  body{font-size:15.5px}
  .gnav,.hd-cta{display:none}
  .hd.open .gnav{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .hd.open .gnav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .burger{display:flex}
  .sec{padding:54px 0}
  .g2,.g3{grid-template-columns:1fr}
  .hero{padding:64px 0 78px}
  .hero-photo{object-position:62% 42%;opacity:.42}
  .tbl th{width:auto;display:block;border-bottom:none;padding-bottom:4px;white-space:normal}
  .tbl td{display:block;padding-top:4px}
  .prose h2{margin-top:42px}
  .ft{padding-bottom:76px}
  .ft-btm .cr{margin-left:0;width:100%}
  .spbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:#fff;border-top:1px solid var(--line);padding:8px;gap:8px;box-shadow:0 -4px 20px rgba(5,36,48,.1)}
  .spbar a{flex:1;text-align:center;padding:13px 6px;border-radius:10px;font-size:13.5px;
    font-weight:800;text-decoration:none}
  .spbar .t{background:var(--c50);color:var(--c700)}
  .spbar .e{background:var(--c400);color:#fff}
}

/* ---------- 画像まわり（写真リッチ化） ---------- */
.card-img{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card-img>img{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--c50)}
.card-img .bd{padding:24px 24px 26px;flex:1}
.card-img .bd h3{margin-bottom:8px}

/* 画像＋テキストの2分割 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .split-txt{order:2}
.split-img{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.split-img img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-img figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 20px 14px;
  background:linear-gradient(transparent,rgba(5,36,48,.78));color:#fff;font-size:12.5px;font-weight:600}
.split-txt h2{font-size:clamp(21px,3vw,29px);font-weight:900;margin-bottom:16px}
.split-txt h2 .en{display:block;font-size:11.5px;letter-spacing:.24em;color:var(--c400);margin-bottom:8px}
.split-txt p{font-size:15px;color:var(--ink2)}
.sec-dark .split-txt p{color:rgba(255,255,255,.82)}

/* 写真バンド（帯） */
.band{position:relative;overflow:hidden;color:#fff;isolation:isolate}
.band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.band::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(5,36,48,.92) 0%,rgba(8,61,79,.80) 48%,rgba(12,92,119,.42) 100%)}
.band-in{max-width:var(--maxw);margin:0 auto;padding:88px 20px}
.band h2{font-size:clamp(22px,3.6vw,34px);font-weight:900;margin-bottom:16px;max-width:22em;text-shadow:0 2px 18px rgba(5,36,48,.5)}
.band p{font-size:15.5px;color:rgba(255,255,255,.92);max-width:44em;text-shadow:0 1px 12px rgba(5,36,48,.55)}

/* 写真ストリップ（現場の風景） */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.strip figure{margin:0;position:relative;border-radius:14px;overflow:hidden;background:var(--c50)}
.strip img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s}
.strip figure:hover img{transform:scale(1.05)}
.strip figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 11px;
  background:linear-gradient(transparent,rgba(5,36,48,.82));color:#fff;font-size:12px;font-weight:700}

@media(max-width:900px){
  .strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .split{grid-template-columns:1fr;gap:26px}
  .split.rev .split-txt{order:0}
  .band-in{padding:60px 20px}
  .band::before{background:linear-gradient(180deg,rgba(5,36,48,.93),rgba(8,61,79,.88))}
}