/* ===================================================================
   一般社団法人 沖縄県トレーラーハウス協会 — 共通スタイル
   =================================================================== */
:root{
  --sea:#0b6e7f;          /* 主色：沖縄の海 */
  --sea-dark:#08525f;
  --sea-lite:#12a5bd;
  --sea-wash:#eaf6f8;
  --leaf:#2f9e44;         /* 副色：緑 */
  --leaf-wash:#edf9f0;
  --ink:#16202b;
  --ink-soft:#54626f;
  --ink-dim:#8593a0;
  --bg:#ffffff;
  --bg-soft:#f3f8f9;
  --line:#dde7ea;
  --line-soft:#eef4f6;
  --warn-wash:#fff8e8;
  --warn-line:#f0dfb8;
  --mono:ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,'Hiragino Sans','Yu Gothic',Meiryo,'Segoe UI',Roboto,sans-serif;
  --shadow:0 1px 2px rgba(22,32,43,.04),0 8px 22px rgba(22,32,43,.07);
  --shadow-lg:0 2px 6px rgba(22,32,43,.05),0 18px 44px rgba(22,32,43,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:74px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  line-height:1.9;font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
a{color:var(--sea);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}
.wrap-n{max-width:820px;margin:0 auto;padding:0 22px}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:11px;flex:none;color:var(--ink)}
.brand .bmark{width:34px;height:34px;border-radius:8px;background:var(--sea);
  display:flex;align-items:center;justify-content:center;flex:none}
.brand .bmark img{width:22px}
.brand .btxt b{display:block;font-size:14.5px;font-weight:800;line-height:1.35;letter-spacing:.01em}
.brand .btxt span{display:block;font-size:10px;color:var(--ink-dim);font-weight:700;letter-spacing:.08em}
.nav ul{list-style:none;display:flex;gap:19px;margin:0;padding:0;flex:1;justify-content:flex-end}
.nav ul a{color:var(--ink-soft);font-size:13.5px;font-weight:700;white-space:nowrap}
.nav ul a:hover{color:var(--sea)}
.navcta{flex:none;background:var(--sea);color:#fff;font-weight:800;font-size:13.5px;
  padding:10px 20px;border-radius:8px;white-space:nowrap;box-shadow:0 2px 10px rgba(11,110,127,.26)}
.navcta:hover{background:var(--sea-dark)}
@media(max-width:980px){.nav ul{display:none}.nav .wrap{justify-content:space-between}}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;background:var(--sea-dark)}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,54,63,.72),rgba(6,54,63,.58) 55%,rgba(6,54,63,.85))}
.hero .wrap{position:relative;z-index:2;padding:88px 22px 78px;color:#fff}
.hero .kanban{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 17px;
  font-size:12.5px;font-weight:800;letter-spacing:.04em;margin-bottom:24px}
.hero h1{font-size:clamp(27px,4.6vw,44px);line-height:1.42;margin:0 0 20px;font-weight:800;
  letter-spacing:.01em;text-shadow:0 2px 18px rgba(0,0,0,.28)}
.hero .lede{font-size:clamp(15px,2vw,17.5px);max-width:620px;margin:0;color:rgba(255,255,255,.93);
  text-shadow:0 1px 12px rgba(0,0,0,.3)}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero .pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;padding:0;list-style:none}
.hero .pills li{font-size:12.5px;font-weight:700;color:#fff;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);border-radius:6px;padding:7px 13px}

/* ---------- BUTTON ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 30px;border-radius:9px;font-weight:800;font-size:15.5px;
  border:1.5px solid transparent;transition:.18s;cursor:pointer;font-family:inherit}
.btn-main{background:var(--sea-lite);color:#fff;box-shadow:0 4px 16px rgba(18,165,189,.32)}
.btn-main:hover{background:#0d8ea3;transform:translateY(-1px)}
.btn-solid{background:var(--sea);color:#fff;box-shadow:0 3px 14px rgba(11,110,127,.26)}
.btn-solid:hover{background:var(--sea-dark);transform:translateY(-1px)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--sea);color:var(--sea)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn[data-disabled]{opacity:.45;pointer-events:none;box-shadow:none;transform:none}
.btn[data-disabled]::after{content:"（準備中）";font-size:11.5px;font-weight:700}

/* ---------- SECTION ---------- */
section{padding:78px 0;border-bottom:1px solid var(--line)}
section.soft{background:var(--bg-soft)}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--sea-lite);
  text-transform:uppercase;font-weight:700;margin:0 0 12px}
section h2{font-size:clamp(22px,3.3vw,32px);margin:0 0 20px;font-weight:800;line-height:1.5}
section h2 em{font-style:normal;color:var(--sea)}
.lead{color:var(--ink-soft);max-width:720px;margin:0 0 34px;font-size:16px}
.lead:last-child{margin-bottom:0}
h3.sub{font-size:19px;font-weight:800;margin:38px 0 14px;padding-left:14px;
  border-left:4px solid var(--sea-lite);line-height:1.6}
p.body{font-size:15.5px;color:var(--ink-soft);margin:0 0 18px;max-width:760px}
p.body strong{color:var(--ink);font-weight:800}

/* ---------- 強調ボックス ---------- */
.note{background:var(--sea-wash);border:1px solid #cfe7ec;border-left:4px solid var(--sea-lite);
  border-radius:10px;padding:22px 26px;margin:0 0 26px}
.note p{margin:0;font-size:15.5px;color:#0f4a55}
.note p+p{margin-top:12px}
.note strong{color:var(--ink);font-weight:800}
.warn{background:var(--warn-wash);border:1px solid var(--warn-line);border-left:4px solid #e0a800;
  border-radius:10px;padding:22px 26px;margin:0 0 26px}
.warn p{margin:0;font-size:15px;color:#6a5320}
.warn p+p{margin-top:12px}

/* ---------- 規定カード ---------- */
.rules{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.rule{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px;
  box-shadow:var(--shadow)}
.rule .tag{display:inline-block;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;
  color:var(--sea);background:var(--sea-wash);border-radius:5px;padding:4px 10px;font-weight:700;margin-bottom:13px}
.rule h4{margin:0 0 13px;font-size:17.5px;font-weight:800;line-height:1.6}
.rule ul{margin:0;padding:0;list-style:none}
.rule ul li{position:relative;padding-left:20px;margin-bottom:11px;font-size:14.5px;
  color:var(--ink-soft);line-height:1.85}
.rule ul li:last-child{margin-bottom:0}
.rule ul li::before{content:"●";position:absolute;left:0;color:var(--sea-lite);font-size:10px;top:6px}
.rule .spec{background:var(--leaf-wash);border:1px solid #cfe9d6;border-radius:8px;
  padding:12px 15px;margin:12px 0 0;font-family:var(--mono);font-size:13.5px;
  color:#1d6b30;font-weight:700;line-height:1.9}

/* ---------- 活用例ギャラリー ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery figure{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:#fff}
.gallery img{aspect-ratio:4/3;object-fit:cover;width:100%}
.gallery figcaption{padding:11px 14px;font-size:12.5px;font-weight:700;color:var(--ink-soft)}

/* ---------- 検査項目 ---------- */
.checks{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.check{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column}
.check .ph{aspect-ratio:4/3;object-fit:cover;width:100%;background:var(--bg-soft)}
.check .noph{aspect-ratio:4/3;background:linear-gradient(135deg,var(--sea-wash),#dceff3);
  display:flex;align-items:center;justify-content:center;color:var(--sea);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;font-weight:700}
.check .bd{padding:17px 18px 19px;display:flex;gap:12px;align-items:flex-start;flex:1}
.check .no{flex:none;width:28px;height:28px;border-radius:7px;background:var(--sea);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);
  font-size:13px;font-weight:700}
.check p{margin:0;font-size:14.5px;line-height:1.8;font-weight:700}
.check p span{display:block;font-weight:400;font-size:13px;color:var(--ink-soft);margin-top:5px}

/* ---------- 条文（開閉） ---------- */
details.law{background:#fff;border:1px solid var(--line);border-radius:11px;margin-bottom:12px;overflow:hidden}
details.law summary{cursor:pointer;padding:19px 48px 19px 22px;font-weight:800;font-size:15.5px;
  position:relative;list-style:none}
details.law summary::-webkit-details-marker{display:none}
details.law summary::after{content:"＋";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--sea-lite);font-family:var(--mono);font-size:17px;font-weight:700}
details.law[open] summary::after{content:"－"}
details.law .in{padding:0 22px 22px;font-size:14.5px;color:var(--ink-soft);line-height:1.95}
details.law .in p{margin:0 0 14px}
details.law .in p:last-child{margin-bottom:0}
details.law .in ol{margin:0 0 14px;padding-left:1.3em}
details.law .in li{margin-bottom:8px}
details.law .in .src{font-family:var(--mono);font-size:12px;color:var(--ink-dim);
  border-top:1px dashed var(--line);padding-top:13px;margin-top:16px;line-height:2}

/* ---------- 入会・会員 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:s;margin:0 0 30px;padding:0;list-style:none}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:24px 18px;text-align:center;box-shadow:var(--shadow)}
.steps li::before{content:counter(s);display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;margin:0 auto 13px;border-radius:50%;background:var(--sea-wash);
  color:var(--sea);font-family:var(--mono);font-weight:700;font-size:14px}
.steps li b{display:block;font-size:15.5px;font-weight:800;margin-bottom:6px}
.steps li span{font-size:12.5px;color:var(--ink-soft);line-height:1.75}
.merits{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.merit{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px;box-shadow:var(--shadow)}
.merit .ic{width:40px;height:40px;border-radius:10px;background:var(--leaf-wash);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:13px}
.merit h4{margin:0 0 9px;font-size:16.5px;font-weight:800}
.merit p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.85}
.members{background:#fff;border:1px dashed var(--line);border-radius:14px;padding:44px 30px;text-align:center}
.members p{margin:0 0 8px;font-size:15.5px;font-weight:800}
.members span{font-size:13.5px;color:var(--ink-dim)}

/* ---------- 問い合わせ ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.formbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 28px;box-shadow:var(--shadow-lg)}
.fld{margin-bottom:20px}
.fld label{display:block;font-size:13.5px;font-weight:800;margin-bottom:9px}
.fld .req{color:#c0392b;font-size:11px;margin-left:6px;font-family:var(--mono)}
.formbox input[type=text],.formbox input[type=email],.formbox textarea,.formbox select{
  width:100%;border:1px solid var(--line);border-radius:8px;padding:13px 14px;
  font-size:15px;font-family:inherit;background:var(--bg-soft);color:var(--ink);line-height:1.7}
.formbox input:focus,.formbox textarea:focus,.formbox select:focus{outline:none;
  border-color:var(--sea-lite);box-shadow:0 0 0 3px rgba(18,165,189,.16)}
.formbox textarea{min-height:126px;resize:vertical}
.formbox .btn{width:100%}
.form-note{font-size:12.5px;color:var(--ink-dim);margin:13px 0 0;text-align:center}
.form-error{font-size:13.5px;color:#a5372a;background:#fdecea;border:1px solid #f5cdc7;
  border-radius:8px;padding:11px 14px;margin:13px 0 0;text-align:center;font-weight:700}
.info{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px;box-shadow:var(--shadow)}
.info dl{margin:0}
.info dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--ink-dim);
  font-weight:700;margin-bottom:5px}
.info dd{margin:0 0 20px;font-size:15px;font-weight:700;line-height:1.8}
.info dd:last-child{margin-bottom:0}
.info dd .todo{color:var(--ink-dim);font-weight:400;font-size:13.5px}

/* ---------- FOOTER ---------- */
footer{background:var(--sea-dark);color:#cfe4e9;padding:54px 0 46px}
footer .fmark{display:flex;align-items:center;gap:12px;margin-bottom:16px}
footer .fmark img{width:36px}
footer .fmark b{font-size:17px;color:#fff;font-weight:800;line-height:1.5}
footer .ftag{font-size:14px;margin:0 0 26px;color:#a9cdd5}
footer ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 24px;margin:0 0 26px;padding:0}
footer ul a{color:#cfe4e9;font-size:13.5px;font-weight:700}
footer ul a:hover{color:#fff}
footer .flink{font-size:13px;margin:0 0 22px;color:#a9cdd5}
footer .flink span{margin-right:12px;font-size:12px}
footer .flink a{color:#cfe4e9;font-weight:700;text-decoration:underline;text-underline-offset:3px}
footer .flink a:hover{color:#fff}
footer .fmeta{font-family:var(--mono);font-size:12px;color:#8fb8c1;line-height:2.1;margin:0;
  border-top:1px solid rgba(255,255,255,.14);padding-top:22px}

/* ---------- RESPONSIVE ---------- */
@media(max-width:940px){
  .gallery{grid-template-columns:repeat(2,1fr)}
  .checks{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .merits{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  section{padding:58px 0}
  .hero .wrap{padding:62px 22px 56px}
  .rules{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr}
  .btn{width:100%}
  .rule,.note,.warn{padding:20px 18px}
  .formbox,.info{padding:22px 18px}
}

/* Long translated navigation labels must wrap on narrow screens. */
.nav .wrap{height:auto;min-height:66px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.brand{flex:1 1 240px;min-width:0}
.brand .btxt{min-width:0;overflow-wrap:anywhere}
.nav ul{flex-wrap:wrap}
.info dd,.rule p{overflow-wrap:anywhere}
a:focus-visible,summary:focus-visible{outline:3px solid var(--sea-lite);outline-offset:4px}
@media(max-width:680px){.nav{position:static}.navcta{white-space:normal}.brand .btxt span{font-size:9px}.steps{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* ---------- 新着・お知らせ ---------- */
.news{list-style:none;margin:0;padding:0}
.news li{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:baseline;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:20px 24px;box-shadow:var(--shadow);margin-bottom:14px}
.news li:last-child{margin-bottom:0}
.news time{font-family:var(--mono);font-size:13px;color:var(--ink-dim);font-weight:700;flex:none}
.news .tag-n{flex:none;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--sea);
  background:var(--sea-wash);border-radius:5px;padding:3px 9px;font-weight:700}
.news .nx{flex:1 1 320px;min-width:0}
.news .nx p{margin:0;font-size:15px;color:var(--ink-soft);line-height:1.85}
.news .nx p+p{margin-top:7px}
.news .nx p strong{color:var(--ink);font-weight:800}
.news .nx .links{margin-top:10px;font-size:14px;font-weight:700}
.news .nx .links a{overflow-wrap:anywhere}

/* ---------- 2026年版 要点リスト ---------- */
.points{margin:0 0 30px;padding:0;list-style:none;counter-reset:p}
.points li{counter-increment:p;position:relative;padding:15px 20px 15px 54px;background:#fff;
  border:1px solid var(--line);border-radius:10px;margin-bottom:10px;font-size:14.5px;
  color:var(--ink-soft);line-height:1.9;box-shadow:var(--shadow)}
.points li:last-child{margin-bottom:0}
.points li::before{content:counter(p);position:absolute;left:16px;top:15px;width:26px;height:26px;
  border-radius:7px;background:var(--sea);color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12.5px;font-weight:700}
.points li strong{color:var(--ink);font-weight:800}

/* ---------- 資料ダウンロード ---------- */
.docs{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 26px}
.docs a{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:18px 20px;box-shadow:var(--shadow);color:var(--ink)}
.docs a:hover{border-color:var(--sea-lite);transform:translateY(-1px);transition:.18s}
.docs .ic{flex:none;width:42px;height:42px;border-radius:9px;background:var(--sea-wash);color:var(--sea);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:700}
.docs .dx{min-width:0}
.docs .dx b{display:block;font-size:15px;font-weight:800;line-height:1.55;overflow-wrap:anywhere}
.docs .dx span{display:block;font-size:12.5px;color:var(--ink-dim);font-weight:400;margin-top:3px;line-height:1.7}
@media(max-width:680px){.docs{grid-template-columns:1fr}}

/* ---------- 資料リンク（PDFチップ） ---------- */
.doclinks{display:flex;flex-wrap:wrap;gap:10px 14px;margin:0 0 22px;font-size:14px;font-weight:700}
.doclinks a{display:inline-flex;align-items:center;gap:8px;background:var(--sea-wash);
  border:1px solid #cfe7ec;border-radius:8px;padding:9px 14px;color:var(--sea-dark);overflow-wrap:anywhere}
.doclinks a::before{content:"PDF";font-family:var(--mono);font-size:10px;font-weight:700;
  background:var(--sea);color:#fff;border-radius:4px;padding:2px 6px;flex:none}
.doclinks a:hover{border-color:var(--sea-lite);background:#e1f1f4}

/* ---------- 小見出し（番号付き） ---------- */
h4.subn{font-size:16.5px;font-weight:800;margin:26px 0 12px;color:var(--ink);line-height:1.6}

/* ---------- 表 ---------- */
.otbl{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
.otbl th,.otbl td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--line-soft)}
.otbl thead th{background:var(--sea-wash);color:var(--sea-dark);font-weight:800;font-size:13.5px;
  letter-spacing:.02em}
.otbl tbody tr:last-child td{border-bottom:none}
.otbl tbody td:first-child{font-family:var(--mono);font-weight:700;color:var(--sea);width:34%}

/* ---------- サブページ：リスト ---------- */
.plist,.plist-n{margin:0 0 22px;padding:0;max-width:760px;color:var(--ink-soft);font-size:15px}
.plist{list-style:none}
.plist li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.85}
.plist li::before{content:"●";position:absolute;left:0;top:6px;color:var(--sea-lite);font-size:10px}
.plist-n{list-style:none;counter-reset:q}
.plist-n li{counter-increment:q;position:relative;padding-left:40px;margin-bottom:11px;line-height:1.85}
.plist-n li::before{content:counter(q);position:absolute;left:0;top:2px;width:26px;height:26px;
  border-radius:7px;background:var(--sea-wash);color:var(--sea);display:flex;align-items:center;
  justify-content:center;font-family:var(--mono);font-size:12.5px;font-weight:700}
.plist li:last-child,.plist-n li:last-child{margin-bottom:0}