/* タイヤショップ桶矢 — 制作：有限会社アポイント */
:root{
  --ink:#1c1f23;
  --ink-2:#4a5058;
  --line:#e3e5e8;
  --bg:#ffffff;
  --bg-soft:#f4f5f6;
  --dark:#16191d;
  --accent:#f2a900;      /* タイヤショップらしい黄色 */
  --accent-ink:#1c1f23;
  --ph:#2a6fdb;          /* 仮原稿の色 */
  --ph-bg:#eef4ff;
  --radius:14px;
  --wrap:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Sans",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}

/* 見本バナー */
.proposal-banner{background:var(--ph);color:#fff;font-size:13px;text-align:center;padding:6px 12px;letter-spacing:.04em}
.proposal-banner b{font-weight:700}

/* ヘッダー */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--dark);position:relative;flex:none}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--accent)}
.brand-name{font-weight:800;font-size:18px;letter-spacing:.06em;line-height:1.2}
.brand-name small{display:block;font-size:10px;font-weight:500;color:var(--ink-2);letter-spacing:.12em}
.nav{display:none}
.nav a{text-decoration:none;font-size:14px;font-weight:500;padding:6px 10px;border-radius:8px}
.nav a:hover,.nav a[aria-current="page"]{background:var(--bg-soft)}
.tel-btn{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:var(--accent-ink);font-weight:700;text-decoration:none;padding:8px 14px;border-radius:999px;font-size:14px;white-space:nowrap}
.tel-btn svg{width:16px;height:16px}
@media (min-width:860px){
  .nav{display:flex;gap:4px}
  .site-header .wrap{height:72px}
}

/* スマホ下部ナビ */
.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);background:var(--dark);padding-bottom:env(safe-area-inset-bottom)}
.mobile-nav a{color:#fff;text-decoration:none;font-size:11px;text-align:center;padding:8px 0 9px;display:flex;flex-direction:column;align-items:center;gap:2px}
.mobile-nav a svg{width:20px;height:20px}
.mobile-nav a.hl{background:var(--accent);color:var(--accent-ink);font-weight:700}
body{padding-bottom:62px}
@media (min-width:860px){.mobile-nav{display:none}body{padding-bottom:0}}

/* ヒーロー */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.hero-img{position:absolute;inset:0;background:url(img/tire-studless-1.webp) center/cover no-repeat;opacity:.45}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(22,25,29,.95) 0%,rgba(22,25,29,.6) 60%,rgba(22,25,29,.2) 100%)}
.hero .wrap{position:relative;z-index:1;padding-top:56px;padding-bottom:56px}
.hero-kicker{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--accent);font-weight:700;margin-bottom:10px}
.hero h1{font-size:clamp(28px,7vw,48px);line-height:1.3;margin:0 0 14px;font-weight:800;letter-spacing:.04em}
.hero p{margin:0 0 24px;color:#d9dce0;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:700;text-decoration:none;font-size:15px;border:2px solid transparent}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-dark{background:var(--dark);color:#fff}
@media (min-width:860px){.hero .wrap{padding-top:96px;padding-bottom:96px}}

/* ページヘッダー（下層） */
.page-head{background:var(--dark);color:#fff;padding:40px 0 36px}
.page-head .crumb{font-size:12px;color:#aab0b8;margin-bottom:6px}
.page-head .crumb a{color:#aab0b8}
.page-head h1{margin:0;font-size:clamp(24px,5vw,34px);letter-spacing:.06em}
.page-head p{margin:8px 0 0;color:#cfd3d8;font-size:14px}

/* セクション */
section.block{padding:56px 0}
section.block.soft{background:var(--bg-soft)}
.sec-title{margin:0 0 6px;font-size:clamp(22px,4.6vw,30px);letter-spacing:.06em;line-height:1.4}
.sec-lead{margin:0 0 28px;color:var(--ink-2);font-size:15px}
.sec-title::before{content:"";display:block;width:36px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:12px}

/* カード */
.cards{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:600px){.cards{grid-template-columns:1fr 1fr}}
@media (min-width:960px){.cards.c3{grid-template-columns:repeat(3,1fr)}.cards.c4{grid-template-columns:repeat(4,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:8px}
.card h3{margin:0;font-size:18px;display:flex;align-items:center;gap:10px}
.card p{margin:0;color:var(--ink-2);font-size:14.5px}
.icon{width:40px;height:40px;border-radius:12px;background:var(--dark);color:var(--accent);display:grid;place-items:center;flex:none}
.icon svg{width:22px;height:22px}
.card .more{margin-top:auto;font-size:14px;font-weight:700;text-decoration:none;color:var(--ink)}
.card .more::after{content:" →"}

/* 写真 */
.photo-grid{display:grid;gap:10px;grid-template-columns:1fr 1fr}
@media (min-width:860px){.photo-grid{grid-template-columns:repeat(4,1fr)}}
.photo-grid figure{margin:0;border-radius:12px;overflow:hidden;background:#ddd;aspect-ratio:16/10}
.photo-grid img{width:100%;height:100%;object-fit:cover}
.photo-note{font-size:12.5px;color:var(--ink-2);margin-top:10px}

/* 仮原稿（ご提案用の差し込み箇所） */
.ph{border:2px dashed var(--ph);background:var(--ph-bg);color:#1d4f9e;border-radius:10px;padding:10px 12px;font-size:14px;line-height:1.7}
.ph::before{content:"仮原稿";display:inline-block;background:var(--ph);color:#fff;font-size:11px;font-weight:700;border-radius:4px;padding:0 6px;margin-right:6px;vertical-align:1px}
span.ph{display:inline-block;padding:1px 8px;font-size:13.5px}
span.ph::before{font-size:10px}

/* 表 */
.info-table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.info-table th,.info-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.info-table th{width:32%;background:var(--bg-soft);font-weight:700;white-space:nowrap}
.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:none}
@media (max-width:520px){.info-table th,.info-table td{display:block;width:100%}.info-table th{border-bottom:none;padding-bottom:4px}.info-table td{padding-top:4px}}

/* 料金 */
.price-list{display:grid;gap:10px}
.price-row{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.price-row b{font-size:15px}

/* 流れ */
.steps{counter-reset:s;display:grid;gap:12px;padding:0;margin:0;list-style:none}
@media (min-width:860px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14.5px}
.steps li::before{content:"STEP " counter(s);display:block;font-size:11px;font-weight:800;letter-spacing:.12em;color:#b07b00;margin-bottom:4px}
.steps li b{display:block;font-size:16px;margin-bottom:4px}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 16px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;display:flex;gap:10px}
.faq summary::before{content:"Q";color:#b07b00;font-weight:800}
.faq summary::-webkit-details-marker{display:none}
.faq details > div{padding:0 0 16px}

/* CTA */
.cta{background:var(--dark);color:#fff;border-radius:var(--radius);padding:28px 20px;display:grid;gap:16px;align-items:center}
.cta h2{margin:0;font-size:22px}
.cta p{margin:0;color:#cfd3d8;font-size:14px}
.cta .tel{font-size:28px;font-weight:800;letter-spacing:.04em;color:var(--accent);text-decoration:none}
@media (min-width:860px){.cta{grid-template-columns:1.2fr 1fr;padding:36px}}

/* 地図枠 */
.map-box{aspect-ratio:16/10;border-radius:var(--radius);background:repeating-linear-gradient(45deg,#e9ecef 0 12px,#f3f4f6 12px 24px);display:grid;place-items:center;text-align:center;padding:16px;border:1px solid var(--line)}
.map-box p{margin:0 0 10px;font-size:14px;color:var(--ink-2)}

.two-col{display:grid;gap:24px}
@media (min-width:860px){.two-col{grid-template-columns:1fr 1fr;align-items:start}}

/* フッター */
.site-footer{background:#0f1113;color:#aab0b8;padding:40px 0 28px;font-size:13.5px}
.site-footer .wrap{display:grid;gap:20px}
.site-footer .f-name{color:#fff;font-weight:800;font-size:17px;letter-spacing:.06em}
.site-footer a{color:#d7dbe0;text-decoration:none}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 16px}
.site-footer small{color:#6f757d}
@media (min-width:860px){.site-footer .wrap{grid-template-columns:1.2fr 1fr}}
@media (max-width:420px){
  .brand-name{font-size:15px;letter-spacing:.02em}
  .brand-name small{font-size:9px}
  .brand-mark{width:28px;height:28px}
  .brand-mark::after{inset:7px}
  .tel-btn{padding:7px 11px;font-size:13px}
}
.nb{display:inline-block}
.price-row span.ph{white-space:nowrap;flex:none}

/* 在庫（CARbase から自動反映） */
.items{display:grid;gap:12px;grid-template-columns:1fr 1fr}
@media (min-width:700px){.items{grid-template-columns:repeat(3,1fr)}}
@media (min-width:960px){.items{grid-template-columns:repeat(4,1fr);gap:16px}}
.item{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;text-decoration:none;transition:box-shadow .15s,transform .15s}
.item:hover{box-shadow:0 6px 18px rgba(0,0,0,.08);transform:translateY(-2px)}
.item[hidden]{display:none}
.item-ph{position:relative;aspect-ratio:4/3;background:#e9ebee}
.item-ph img{width:100%;height:100%;object-fit:cover}
.noimg{display:grid;place-items:center;height:100%;color:#8a9097;font-size:13px}
.badge{position:absolute;top:8px;left:8px;font-size:11px;font-weight:800;color:#fff;border-radius:6px;padding:1px 8px}
.badge.winter{background:#df1e3b}.badge.summer{background:#39c9ff}  /* CARbase（common/css/parts.css）と同じ色 */
.item-body{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px;flex:1}
.item-cat{font-size:11.5px;color:var(--ink-2);font-weight:700}
.item-title{font-size:13.5px;line-height:1.5;font-weight:500;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.item-price{margin-top:auto;font-size:19px;font-weight:800;letter-spacing:.02em}
.item-price small,.d-price small{font-size:.6em;margin-left:2px}
.ask{font-size:13px;font-weight:700;color:var(--ink-2)}
.filters{display:grid;gap:10px;margin-bottom:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chip{font:inherit;font-size:13.5px;font-weight:700;border:1.5px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:6px 14px;cursor:pointer}
.chip.on{background:var(--dark);border-color:var(--dark);color:#fff}
.sort{font:inherit;font-size:13.5px;border:1.5px solid var(--line);border-radius:999px;padding:6px 12px;background:#fff;margin-left:auto}
.stock-count{margin:0 0 12px;font-size:14px;color:var(--ink-2)}
.stock-count b{font-size:18px;color:var(--ink)}
.page-head.slim{padding:16px 0 14px}
.page-head.slim .crumb{margin:0}
.detail{display:grid;gap:24px}
@media (min-width:860px){.detail{grid-template-columns:1.15fr 1fr;align-items:start}}
.gallery-main{position:relative;border-radius:12px;overflow:hidden;background:#e9ebee;aspect-ratio:4/3}
.gallery-main img{width:100%;height:100%;object-fit:contain;background:#111}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:8px}
.thumbs button{padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:#e9ebee}
.thumbs button.on{border-color:var(--accent)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.d-title{font-size:clamp(19px,3.6vw,24px);line-height:1.5;margin:4px 0 10px}
.d-price{font-size:32px;font-weight:800;margin-bottom:14px}
.d-desc{background:var(--bg-soft);border-radius:12px;padding:14px 16px;font-size:14.5px;line-height:1.9}
.d-ask{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-wrap:wrap;gap:10px}
.d-ask p{margin:0;width:100%;font-size:14px}
.more-link{font-weight:700;text-decoration:none;font-size:14px}

/* 地図・外観 */
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:#e9ecef}
.map-embed iframe{width:100%;height:100%;border:0;display:block}
.shop-photo{margin:16px 0 0}
.shop-photo img{width:100%;border-radius:var(--radius)}
.shop-photo figcaption{font-size:12.5px;color:var(--ink-2);margin-top:6px}
.info-table small{color:var(--ink-2);font-size:12.5px}

/* メールフォーム */
.form{gap:12px}
.form label{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:700}
.form input,.form textarea{font:inherit;font-weight:400;font-size:16px;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;color:var(--ink)}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,169,0,.25)}
.form input[readonly]{background:var(--bg-soft)}
.form .req{display:inline-block;background:#c8372d;color:#fff;font-size:10.5px;border-radius:4px;padding:0 6px;margin-left:4px;vertical-align:1px}
.form-note{font-size:12.5px !important;color:var(--ink-2)}
.form button{border:0;cursor:pointer;font-family:inherit;align-self:flex-start}
.form button:disabled{opacity:.6;cursor:default}
.form-msg{background:#fdecea;color:#8a1f17;border-radius:10px;padding:10px 12px;font-size:14px !important}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form label[hidden]{display:none}

/* ヤフオクのバナー（リンク先は data-yahoo で一括差し替え） */
.yb-wrap{margin-top:24px}
.yahoo-banner{display:grid;grid-template-columns:1fr auto;gap:2px 16px;align-items:center;background:#fff;border:2px solid #ff0033;border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--ink);transition:box-shadow .15s}
.yahoo-banner:hover{box-shadow:0 6px 18px rgba(255,0,51,.15)}
.yb-main{font-size:18px;font-weight:800;letter-spacing:.02em}
.yb-main b{color:#ff0033;font-size:21px;margin-right:2px}
.yb-sub{font-size:13px;color:var(--ink-2);grid-column:1}
.yb-go{grid-column:2;grid-row:1/3;background:#ff0033;color:#fff;font-weight:700;font-size:14px;border-radius:999px;padding:9px 16px;white-space:nowrap}
.yb-go::after{content:" →"}
@media (max-width:520px){.yahoo-banner{grid-template-columns:1fr}.yb-go{grid-column:1;grid-row:auto;justify-self:start;margin-top:8px}}
.yb-foot{margin:14px 0 0}
.yb-foot a{display:inline-block;border:1px solid #5b6168;border-radius:8px;padding:6px 12px;color:#fff !important}
.yb-foot b{color:#ff5a76}
.d-kanri{margin:-4px 0 10px;font-size:14px;font-weight:700;color:var(--ink-2)}

/* 桶矢でできること：写真の背景＋ホバーで白80%が下から上がる */
.card.photo{position:relative;overflow:hidden;isolation:isolate;background-color:#1c1f23;background-position:center;background-size:cover;background-repeat:no-repeat;border:0;clip-path:inset(0 round var(--radius));min-height:220px}
.card.photo::before,.card.photo::after{content:"";position:absolute;inset:0;z-index:-1}
.card.photo::before{background:linear-gradient(180deg,rgba(16,18,21,.55) 0%,rgba(16,18,21,.86) 100%)}
.card.photo::after{background:rgba(255,255,255,.7);transform:translateY(101%);transition:transform .38s cubic-bezier(.2,.7,.2,1)}
.card.photo h3,.card.photo p:not(.ph),.card.photo .more{color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.55);transition:color .25s,text-shadow .25s}
.card.photo p:not(.ph){color:#eef0f2}
.card.photo .ph{position:relative}
@media (hover:hover){
  .card.photo:hover::after,.card.photo:focus-within::after{transform:translateY(0)}
  .card.photo:hover h3,.card.photo:hover .more,.card.photo:focus-within h3,.card.photo:focus-within .more{color:var(--ink);text-shadow:none}
  .card.photo:hover p:not(.ph),.card.photo:focus-within p:not(.ph){color:var(--ink-2);text-shadow:none}
}
.card.photo .icon{background:var(--accent);color:var(--dark);transition:background-color .25s,color .25s}
@media (hover:hover){.card.photo:hover .icon,.card.photo:focus-within .icon{background:var(--dark);color:var(--accent)}}
@media (prefers-reduced-motion:reduce){.card.photo::after,.card.photo .icon{transition:none}}

/* 初めての方へ：見出しの左にアイコン（箱は小さめ・アイコン本体は30/34pxのまま） */
.step-head{display:flex;align-items:center;gap:12px;margin:4px 0 8px}
.step-head b{margin:0 !important}
.step-icon{flex:none;display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--dark);color:var(--accent)}
.step-icon svg{width:30px;height:30px}
@media (min-width:860px){.step-icon{width:48px;height:48px}.step-icon svg{width:34px;height:34px}}

/* ロゴ */
.brand-logo{height:40px;width:auto;display:block}
.f-logo{height:48px;width:auto;display:block}
.hero-logo{display:block;width:min(60vw,300px);height:auto;margin:0 0 18px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.35))}
@media (max-width:420px){.brand-logo{height:34px}}
@media (min-width:860px){.brand-logo{height:46px}}

/* お問い合わせの商品（フォームの上）・10/10 横山商会と揃える */
.form [hidden]{display:none}
.form-item{display:flex;gap:14px;align-items:flex-start;background:var(--bg-soft);border-left:5px solid var(--accent);border-radius:10px;padding:12px}
.form-item img{width:140px;aspect-ratio:16/9;object-fit:cover;border-radius:6px;flex-shrink:0}
.form-item div{display:flex;flex-direction:column;gap:2px;font-size:13.5px}
.form-item .fi-k{font-size:11.5px;font-weight:700;color:var(--ink-2)}
.form-item b{font-size:15px;line-height:1.45;margin-bottom:2px}
.form-item a{margin-top:4px;font-size:12.5px}
@media (max-width:640px){.form-item{flex-direction:column}.form-item img{width:100%}}

/* 写真ギャラリー（共通部品 gallery.css）の色 */
.cg{--cg-accent:var(--accent)}

/* 売約済み・商談中（stock-sites の決まり：売約済みは赤・リンクなし・最後、商談中は青） */
.badge.sold,.badge.nego{left:auto;right:8px}
.badge.sold{background:#c8372d}
.badge.nego{background:#2a6fdb}
.item.is-sold{cursor:default}
.item.is-sold:hover{box-shadow:none;transform:none}
.item.is-sold .item-ph img{filter:grayscale(.6);opacity:.7}
.item.is-sold .item-price{color:var(--ink-2)}
.sold-count{font-size:13px;margin-left:6px}

/* お店が書き換える欄：確認用の間の「未記入」表示（公開後は欄ごと隠れる） */
.cms-placeholder{display:block;border:2px dashed var(--ph);background:var(--ph-bg);color:#1d4f9e;border-radius:10px;padding:8px 12px;font-size:14px}
span.cms-text .cms-placeholder{display:inline-block;padding:1px 8px;font-size:13.5px}
.price-empty{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.cms-login{color:#6f757d !important;font-size:12px}

/* ヤフオク：リンク先が決まるまでのリンクなし版 */
.yahoo-banner.yb-nolink{grid-template-columns:1fr;cursor:default}
.yahoo-banner.yb-nolink:hover{box-shadow:none}
.yb-foot span{display:inline-block;border:1px solid #5b6168;border-radius:8px;padding:6px 12px;color:#fff}

/* ページの先頭へ戻るボタン（右下・ある程度スクロールしたら出る） */
.to-top{position:fixed;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:40;width:48px;height:48px;border-radius:50%;background:var(--dark);border:2px solid rgba(255,255,255,.35);box-sizing:border-box;color:var(--accent);display:grid;place-items:center;box-shadow:0 4px 14px rgba(0,0,0,.25);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s,visibility .25s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top svg{width:24px;height:24px}
.to-top:hover{background:#000}
@media (min-width:860px){.to-top{right:24px;bottom:24px;width:52px;height:52px}}
@media (prefers-reduced-motion:reduce){.to-top{transition:none}}