/*
Theme Name: AMT Corporate
Theme URI: https://amt-eco.com/
Author: AMT
Description: 株式会社AMT コーポレートサイト用クラシックテーマ。中古太陽光パネル買取・非鉄金属スクラップ・通販卸売。日英中3言語対応（クライアントサイドi18n）。
Version: 1.3.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
Text Domain: amt
*/

:root{
  --sky-50:#EEF6FF;
  --sky-100:#E1EEFC;
  --paper:#F6FAFF;
  --white:#FFFFFF;
  --blue-700:#0E3A6B;
  --blue-600:#1466C0;
  --blue-500:#2E8FE0;
  --blue-300:#9CC8F2;
  --ink:#14283F;
  --steel-600:#48607A;
  --steel-500:#5E748C;
  --steel-300:#AEBED0;
  --line:#E2EAF3;
  --copper:#C77B3B;

  --maxw:1200px;
  --pad:clamp(20px,5vw,64px);

  --f-display:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;
  --f-body:"Noto Sans JP",sans-serif;
  --f-data:"Saira Condensed","Zen Kaku Gothic New",sans-serif;
}
html[data-lang="zh"]{
  --f-display:"Noto Sans SC","Zen Kaku Gothic New",sans-serif;
  --f-body:"Noto Sans SC",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--f-body);color:var(--ink);background:var(--white);
  line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:900;line-height:1.26;letter-spacing:.01em;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--blue-500);outline-offset:3px;border-radius:2px;}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);}
.eyebrow{
  font-family:var(--f-data);font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  font-size:.82rem;color:var(--blue-600);display:inline-flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--copper);display:inline-block;}
html[data-lang="zh"] .eyebrow{letter-spacing:.12em;}

.section-head{max-width:760px;margin-bottom:clamp(36px,5vw,60px);}
.section-head h2{font-size:clamp(1.9rem,4.2vw,3rem);margin-top:18px;color:var(--blue-700);}
.section-head .lead{margin-top:20px;color:var(--steel-500);font-size:1.02rem;}
section{padding-block:clamp(72px,9vw,128px);}

/* ---------- Header ---------- */
header.site{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:transparent;transition:background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
header.site.scrolled{
  background:rgba(255,255,255,.93);backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);box-shadow:0 8px 30px rgba(14,58,107,.07);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px;}
.brand{display:flex;align-items:center;gap:13px;color:var(--ink);}
.brand .mark{
  width:38px;height:38px;flex:none;border-radius:8px;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(20,102,192,.28);
}
.brand .mark span{font-family:var(--f-data);font-weight:700;color:#fff;font-size:1.05rem;letter-spacing:.04em;}
.brand b{font-family:var(--f-display);font-weight:900;font-size:1.18rem;letter-spacing:.04em;}
.brand small{display:block;font-family:var(--f-data);font-weight:600;letter-spacing:.18em;font-size:.62rem;color:var(--steel-500);margin-top:-2px;}

.nav-links{display:flex;align-items:center;gap:clamp(14px,2vw,30px);}
.nav-links a.navlink{color:var(--steel-600);font-weight:500;font-size:.95rem;position:relative;padding:6px 0;transition:color .25s ease;}
.nav-links a.navlink::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--copper);transition:width .28s ease;}
.nav-links a.navlink:hover{color:var(--blue-700);}
.nav-links a.navlink:hover::after{width:100%;}

.nav-cta{background:var(--blue-600);color:#fff !important;font-weight:700;font-size:.92rem;padding:11px 22px;border-radius:7px;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;box-shadow:0 6px 16px rgba(20,102,192,.25);}
.nav-cta:hover{background:#0f57a8;transform:translateY(-1px);}
.nav-cta::after{display:none;}

.lang{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:7px;padding:3px;background:rgba(255,255,255,.6);}
.lang button{font-family:var(--f-data);font-weight:600;letter-spacing:.06em;background:none;border:none;cursor:pointer;color:var(--steel-500);padding:5px 10px;border-radius:5px;font-size:.82rem;transition:all .2s ease;}
.lang button[aria-pressed="true"]{background:var(--blue-600);color:#fff;}

.burger{display:none;background:none;border:none;cursor:pointer;width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;}
.burger span{display:block;height:2px;width:24px;margin:0 auto;background:var(--ink);transition:.3s;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding-top:clamp(150px,18vw,210px);padding-bottom:0;
  background:var(--sky-50);
}
.hero-bg{position:absolute;inset:0;z-index:0;background:#cfe3f7;background-image:url("https://amt-eco.com/wp-content/uploads/2026/07/amt-hero-solar.jpg");background-size:cover;background-position:center right;}
.hero-overlay{position:absolute;inset:0;z-index:1;
  background:linear-gradient(102deg,rgba(238,246,255,.97) 0%,rgba(238,246,255,.92) 34%,rgba(238,246,255,.62) 60%,rgba(20,102,192,.10) 100%);
}
.hero .wrap{position:relative;z-index:2;}
.hero h1{font-size:clamp(2.4rem,6.4vw,4.5rem);margin-top:24px;color:var(--blue-700);letter-spacing:.005em;}
.hero h1 .accent{color:var(--blue-600);position:relative;}
.hero h1 .accent::after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.18em;background:rgba(199,123,59,.32);z-index:-1;border-radius:2px;}
.hero .lead{margin-top:26px;max-width:560px;color:var(--steel-600);font-size:clamp(1rem,1.6vw,1.18rem);font-weight:400;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1rem;padding:15px 30px;border-radius:8px;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;cursor:pointer;border:none;}
.btn .arr{font-family:var(--f-data);}
.btn-primary{background:var(--blue-600);color:#fff;box-shadow:0 12px 28px rgba(20,102,192,.30);}
.btn-primary:hover{background:#0f57a8;transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--blue-700);box-shadow:inset 0 0 0 1px var(--blue-300);}
.btn-ghost:hover{background:#fff;transform:translateY(-2px);}

.ticker{margin-top:clamp(54px,7vw,86px);border-top:1px solid var(--line);background:rgba(255,255,255,.55);backdrop-filter:blur(4px);padding:18px 0 20px;display:flex;align-items:center;gap:26px;overflow:hidden;}
.ticker .tlabel{font-family:var(--f-data);font-weight:600;letter-spacing:.2em;font-size:.72rem;color:var(--copper);flex:none;text-transform:uppercase;}
.ticker-track{display:flex;gap:48px;animation:slide 28s linear infinite;white-space:nowrap;}
.ticker-track span{font-family:var(--f-data);font-weight:600;font-size:1.02rem;letter-spacing:.08em;color:var(--steel-600);display:inline-flex;align-items:center;gap:48px;}
.ticker-track span::after{content:"／";color:var(--steel-300);}
@keyframes slide{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ---------- Business ---------- */
.business{background:var(--white);}
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.biz-card{background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;position:relative;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;}
.biz-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px rgba(14,58,107,.10);border-color:var(--blue-300);}
.biz-photo{position:relative;height:172px;overflow:hidden;background:var(--sky-100);}
.biz-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.biz-card:hover .biz-photo img{transform:scale(1.05);}
.biz-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,58,107,0) 45%,rgba(14,58,107,.34) 100%);}
.biz-photo .biz-no{position:absolute;left:20px;bottom:12px;z-index:2;font-family:var(--f-data);font-weight:700;font-size:2.2rem;color:#fff;line-height:1;text-shadow:0 2px 10px rgba(0,0,0,.35);}
.biz-body{padding:26px 30px 32px;}
.biz-card .ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;margin:0 0 18px;background:linear-gradient(135deg,var(--sky-50),var(--sky-100));}
.biz-card .ico svg{width:27px;height:27px;stroke:var(--blue-600);}
.biz-card h3{font-size:1.32rem;color:var(--blue-700);}
.biz-card .en{font-family:var(--f-data);font-weight:600;letter-spacing:.12em;font-size:.74rem;color:var(--copper);text-transform:uppercase;margin-top:6px;}
.biz-card p{margin-top:16px;color:var(--steel-500);font-size:.97rem;}

/* ---------- Strengths ---------- */
.strengths{position:relative;overflow:hidden;background:var(--sky-50);}
.strengths .str-bg{position:absolute;inset:0;z-index:0;background:#dfe8f2;background-image:url("https://images.unsplash.com/photo-1518994255497-c5f17690567f?auto=format&fit=crop&w=2000&q=65");background-size:cover;background-position:center;}
.strengths .str-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(238,246,255,.93),rgba(246,250,255,.95));}
.strengths .wrap{position:relative;z-index:2;}
.strengths .section-head h2{color:var(--blue-700);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:60px;}
.stat{background:var(--white);border:1px solid var(--line);border-radius:14px;border-top:3px solid var(--copper);padding:26px 24px;box-shadow:0 10px 28px rgba(14,58,107,.05);}
.stat .num{font-family:var(--f-data);font-weight:700;font-size:clamp(2.3rem,4.3vw,3.2rem);line-height:1;color:var(--blue-700);}
.stat .num small{font-size:.42em;color:var(--copper);margin-left:4px;font-weight:600;}
.stat .cap{margin-top:12px;color:var(--steel-500);font-size:.9rem;}

.points{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.point{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:30px 30px;display:flex;gap:20px;transition:box-shadow .3s ease,transform .3s ease;}
.point:hover{box-shadow:0 18px 40px rgba(14,58,107,.08);transform:translateY(-3px);}
.point .pn{font-family:var(--f-data);font-weight:700;font-size:1.15rem;color:var(--blue-500);flex:none;padding-top:2px;}
.point h4{font-size:1.16rem;color:var(--blue-700);}
.point p{margin-top:10px;color:var(--steel-500);font-size:.95rem;}

/* ---------- About ---------- */
.about{background:var(--white);}
.about-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(36px,5vw,72px);align-items:start;}
.about-aside h2{font-size:clamp(1.9rem,4.2vw,3rem);color:var(--blue-700);}
.about-aside .msg{margin-top:24px;color:var(--steel-500);font-size:1.02rem;}
.about-aside .sign{margin-top:30px;font-family:var(--f-display);font-weight:700;color:var(--ink);}
.about-aside .sign small{display:block;font-family:var(--f-data);letter-spacing:.16em;color:var(--steel-500);font-size:.72rem;font-weight:600;}
.about-aside .eyebrow{margin-bottom:18px;}
.ptable{width:100%;border-collapse:collapse;border-top:2px solid var(--blue-700);}
.ptable th,.ptable td{text-align:left;padding:18px 4px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.97rem;}
.ptable th{width:32%;font-family:var(--f-display);font-weight:700;color:var(--blue-700);}
.ptable td{color:var(--steel-600);}
.ph{color:var(--copper);font-weight:600;}

/* ---------- Contact ---------- */
.contact{background:var(--sky-50);}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(36px,5vw,72px);}
.contact-info .eyebrow{margin-bottom:18px;}
.contact-info h2{font-size:clamp(1.9rem,4.2vw,2.8rem);color:var(--blue-700);}
.contact-info .lead{margin-top:20px;color:var(--steel-500);}
.cinfo-list{margin-top:34px;}
.cinfo-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);}
.cinfo-list .ci-ic{width:42px;height:42px;border-radius:10px;background:var(--white);border:1px solid var(--line);display:grid;place-items:center;flex:none;}
.cinfo-list .ci-ic svg{width:20px;height:20px;stroke:var(--blue-600);}
.cinfo-list .ci-l{font-family:var(--f-data);font-weight:600;letter-spacing:.12em;font-size:.7rem;color:var(--steel-500);text-transform:uppercase;}
.cinfo-list .ci-v{font-weight:700;color:var(--ink);font-size:1.05rem;}

form.cform{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:clamp(26px,3.5vw,42px);box-shadow:0 26px 60px rgba(14,58,107,.08);}
.field{margin-bottom:20px;}
.field label{display:block;font-weight:700;font-size:.88rem;color:var(--ink);margin-bottom:8px;}
.field label .req{color:var(--copper);margin-left:4px;}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:.97rem;color:var(--ink);padding:13px 15px;border:1px solid var(--steel-300);border-radius:9px;background:#fbfdff;transition:border-color .2s,box-shadow .2s;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(46,143,224,.18);}
.field textarea{min-height:130px;resize:vertical;}
.field.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:0;}
.field.row2 > div{margin-bottom:20px;}
form.cform .btn-primary{width:100%;justify-content:center;margin-top:6px;}
.formnote{margin-top:14px;font-size:.8rem;color:var(--steel-500);text-align:center;}

/* ---------- Footer ---------- */
footer.site{background:var(--blue-700);color:rgba(231,240,250,.66);padding:60px 0 30px;}
.foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;align-items:flex-start;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);}
.foot-brand b{font-family:var(--f-display);font-weight:900;color:#fff;font-size:1.3rem;letter-spacing:.05em;}
.foot-brand p{margin-top:12px;font-size:.9rem;max-width:320px;}
.foot-nav{display:flex;gap:40px;flex-wrap:wrap;}
.foot-nav a{display:block;color:rgba(231,240,250,.72);font-size:.92rem;padding:5px 0;transition:color .2s;}
.foot-nav a:hover{color:#fff;}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:24px;font-size:.8rem;}
.foot-bottom .copy{font-family:var(--f-data);letter-spacing:.05em;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .biz-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .points,.about-grid,.contact-grid{grid-template-columns:1fr;}
}
@media(max-width:760px){
  .hero-overlay{background:linear-gradient(180deg,rgba(238,246,255,.97) 0%,rgba(238,246,255,.9) 55%,rgba(238,246,255,.7) 100%);}
  .nav-links{position:fixed;top:78px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(255,255,255,.98);backdrop-filter:blur(10px);padding:10px var(--pad) 24px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s ease;box-shadow:0 20px 40px rgba(14,58,107,.12);}
  .nav-links.open{transform:none;}
  .nav-links a.navlink{padding:15px 0;border-bottom:1px solid var(--line);}
  .nav-links .lang{margin-top:14px;align-self:flex-start;}
  .nav-links .nav-cta{margin-top:14px;text-align:center;}
  .burger{display:flex;}
  .stats{grid-template-columns:1fr 1fr;}
  .field.row2{grid-template-columns:1fr;gap:0;}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important;}
  .ticker-track{animation:none;}
  .reveal{opacity:1;transform:none;transition:none;}
}

/* ---------- Contact Form 7（フォームを .cform と同デザインに） ---------- */
.contact .wpcf7{background:none;}
.contact .wpcf7-form{
  background:var(--white);border:1px solid var(--line);border-radius:18px;
  padding:clamp(26px,3.5vw,42px);box-shadow:0 26px 60px rgba(14,58,107,.08);
}
.contact .wpcf7-form .field .wpcf7-form-control-wrap{display:block;}
.contact .wpcf7-form .wpcf7-form-control{
  width:100%;font-family:inherit;font-size:.97rem;color:var(--ink);
  padding:13px 15px;border:1px solid var(--steel-300);border-radius:9px;background:#fbfdff;
  transition:border-color .2s,box-shadow .2s;
}
.contact .wpcf7-form .wpcf7-form-control:focus{
  outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(46,143,224,.18);
}
.contact .wpcf7-form textarea.wpcf7-form-control{min-height:130px;resize:vertical;}
.contact .wpcf7-form .wpcf7-submit{width:100%;justify-content:center;margin-top:6px;}
/* バリデーション・送信結果メッセージ */
.contact .wpcf7-form .wpcf7-not-valid-tip{color:var(--copper);font-size:.8rem;margin-top:6px;}
.contact .wpcf7-form .wpcf7-not-valid{border-color:var(--copper) !important;}
.contact .wpcf7-form .wpcf7-response-output{
  margin:18px 0 0;padding:13px 16px;border-radius:9px;font-size:.88rem;border-width:1px;border-style:solid;
}
.contact .wpcf7-form.sent .wpcf7-response-output{border-color:var(--blue-300);background:var(--sky-50);color:var(--blue-700);}
.contact .wpcf7-form.invalid .wpcf7-response-output,
.contact .wpcf7-form.failed .wpcf7-response-output{border-color:var(--copper);background:#fdf3ea;color:var(--copper);}
.contact .wpcf7-spinner{margin:0 auto;}

/* ---------- Blog / お知らせ ---------- */
.blog{background:var(--white);padding-block:clamp(116px,13vw,160px);}
.blog .section-head{margin-bottom:clamp(28px,4vw,44px);}
.blog .section-head h2{font-size:clamp(1.8rem,4vw,2.6rem);margin-top:16px;color:var(--blue-700);}
.post-list{display:grid;gap:20px;}
.post-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:28px 30px;transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;}
.post-card:hover{box-shadow:0 18px 40px rgba(14,58,107,.08);transform:translateY(-3px);border-color:var(--blue-300);}
.post-card-date{font-family:var(--f-data);font-weight:600;letter-spacing:.08em;font-size:.82rem;color:var(--copper);}
.post-card-title{font-size:1.3rem;margin-top:8px;color:var(--blue-700);line-height:1.4;}
.post-card-title a{transition:color .2s ease;}
.post-card-title a:hover{color:var(--blue-500);}
.post-card-excerpt{margin-top:12px;color:var(--steel-500);font-size:.97rem;}
.post-card-more{display:inline-block;margin-top:16px;font-family:var(--f-data);font-weight:600;letter-spacing:.06em;color:var(--blue-600);}
.post-card-more:hover{color:var(--blue-700);}
.post-empty{color:var(--steel-500);}

.post-single{max-width:820px;margin:0 auto;}
.post-head{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:34px;}
.post-title{font-size:clamp(1.8rem,4vw,2.6rem);color:var(--blue-700);margin-top:14px;}
.post-meta{margin-top:14px;font-family:var(--f-data);font-weight:600;letter-spacing:.08em;color:var(--copper);font-size:.85rem;}
.post-content{color:var(--ink);font-size:1.02rem;}
.post-content > *:first-child{margin-top:0;}
.post-content h2{font-size:1.5rem;color:var(--blue-700);margin:36px 0 14px;}
.post-content h3{font-size:1.22rem;color:var(--blue-700);margin:28px 0 12px;}
.post-content p{margin:0 0 1.2em;}
.post-content a{color:var(--blue-600);text-decoration:underline;}
.post-content img{border-radius:12px;margin:20px 0;height:auto;}
.post-content ul,.post-content ol{margin:0 0 1.2em;padding-left:1.4em;}
.post-content ul{list-style:disc;}
.post-content ol{list-style:decimal;}
.post-content li{margin:.3em 0;}
.post-content blockquote{border-left:3px solid var(--copper);padding:6px 0 6px 20px;margin:20px 0;color:var(--steel-600);}
.post-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.95rem;}
.post-content th,.post-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
.post-content th{background:var(--sky-50);font-family:var(--f-display);font-weight:700;color:var(--blue-700);white-space:nowrap;}
.post-content .lead-box{background:var(--sky-50);border:1px solid var(--line);border-left:3px solid var(--copper);border-radius:10px;padding:18px 22px;margin:0 0 28px;}
.post-content .lead-box ul{margin:0;padding-left:1.3em;}
.post-back{margin-top:44px;}
.post-pagination{margin-top:44px;}
.post-pagination .nav-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;}
.post-pagination a,.post-pagination span.page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:9px;font-family:var(--f-data);font-weight:600;color:var(--steel-600);}
.post-pagination a:hover{border-color:var(--blue-300);color:var(--blue-700);}
.post-pagination .current{background:var(--blue-600);color:#fff;border-color:var(--blue-600);}