:root{--navy:#071f5c;--blue:#1857d6;--yellow:#ffc72c;--red:#e8433d;--green:#06b94f;--ink:#0b1e3d;--muted:#536581;--paper:#f4f7fc;--line:#dce4f2;--max:1120px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 'Noto Sans JP','Yu Gothic',sans-serif}img{display:block;max-width:100%}a{color:inherit}h1,h2,h3,p{margin:0}button,input,select,textarea{font:inherit}.num{font-variant-numeric:tabular-nums}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #2285ff;outline-offset:4px}.proto-notice{padding:5px 12px;text-align:center;font-size:12px;color:#dce7ff;background:#0b1e3d}
.site-header{position:sticky;top:0;z-index:20;background:var(--navy);border-bottom:3px solid var(--yellow)}.header-inner{max-width:var(--max);margin:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px}.logo{display:block;width:90px;flex-shrink:0}.logo img{width:100%;height:auto}.header-actions{display:flex;align-items:center;gap:8px}.phone{display:flex;align-items:center;gap:6px;text-decoration:none;font-weight:900}.phone .num{white-space:nowrap}.phone small{display:block;font-size:12px;font-weight:500}.site-header .phone{color:white;font-size:14px}.site-header .phone svg,.site-header .phone small,.site-header .btn-line{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 16px;border:0;border-radius:999px;font-size:16px;font-weight:700;line-height:1.4;text-decoration:none;cursor:pointer}.btn-web{background:var(--yellow);color:var(--navy)}.btn-line{background:var(--green);color:#fff}.site-header .btn{font-size:12px;min-height:40px;padding:8px 10px}.btn:hover{filter:brightness(.96)}
.hero{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(90deg,rgba(5,21,74,.95),rgba(5,21,74,.76) 58%,rgba(5,21,74,.5)),url('assets/tire-wheel-hero-v2.png') 70% center/auto 100% no-repeat}.hero-inner{max-width:var(--max);margin:auto;padding:32px 16px 48px;min-height:590px}.hero-content{position:relative;z-index:2;color:white}.eyebrow,.kicker{display:inline-block;border-radius:999px;font-size:12px;font-weight:900;padding:5px 12px}.eyebrow{border:1px solid #94a3c6;background:#ffffff20}.hero-lead{margin-top:22px;font-size:15px;font-weight:900}.hero h1{margin:8px 0 16px;color:var(--yellow);font-family:'Rampart One',sans-serif;font-size:clamp(40px,12.5vw,54px);line-height:1.16;text-shadow:2px 2px #b47a00,4px 5px #825800}.hero h1 span{font-size:.76em}.hero-sub{display:inline-block;margin-bottom:24px;padding:9px 10px;background:var(--red);border-radius:4px;box-shadow:4px 4px #760f1d;font-size:clamp(12px,3.3vw,15px);font-weight:900;transform:rotate(-2deg)}.hero-staff{position:absolute;z-index:1;right:-55px;top:60px;width:260px;height:440px;object-fit:cover;object-position:center top;pointer-events:none;filter:drop-shadow(-8px 12px 12px #0004)}.proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-bottom:14px}.proof{display:flex;align-items:center;gap:5px;padding:9px 5px;border:1px solid #cad5f3;border-radius:10px;background:#083188;color:white;font-size:11px;font-weight:900;line-height:1.4;min-height:58px}.proof b{display:grid;place-items:center;flex:none;width:15px;height:15px;background:var(--yellow);color:var(--navy);border-radius:50%;font-size:10px}.hero-actions{display:flex;flex-wrap:wrap;gap:10px}.hero-phone{display:flex;width:100%;align-items:center;justify-content:center;gap:10px;padding:16px 8px;background:white;border:3px solid var(--yellow);border-radius:14px;color:var(--navy);text-decoration:none;font-weight:900}.hero-phone svg{color:var(--red);flex:none}.hero-phone .num{font-size:clamp(25px,7vw,33px);line-height:1.1;white-space:nowrap}.hero-phone small{display:block;font-size:12px;color:var(--blue);text-align:center}.hero-actions .btn{flex:1;padding:12px 8px;font-size:14px;min-height:52px}.info-bar{padding:12px 16px;background:repeating-linear-gradient(-45deg,#ffc72c,#ffc72c 16px,#e8a800 16px,#e8a800 32px);text-align:center;font-size:13px;font-weight:900}.info-bar span{display:inline-block;background:#fff;padding:5px 13px;border-radius:30px}
.section{max-width:var(--max);margin:auto;padding:48px 18px}.section-head{text-align:center;margin-bottom:28px}.kicker{margin-bottom:12px;color:var(--blue);background:#e7efff}.section h2{font-size:26px;line-height:1.45;font-weight:900}.section-intro{margin:16px auto 0;max-width:680px;color:var(--muted);font-size:16px}.makers{background:white}.makers h3{margin:26px 0 16px;padding:10px 12px;border-left:5px solid var(--yellow);background:var(--navy);color:white;font-size:18px}.maker-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.maker{min-width:0;text-align:center;background:white;border:1px solid var(--line);border-radius:5px;overflow:hidden;padding:8px 4px}.maker img{width:100%;height:65px;object-fit:contain}.maker span{display:block;font-family:Arial,sans-serif;font-size:11px;line-height:1.5;margin-top:4px}.maker-note{text-align:center;font-size:15px;margin-top:24px;color:var(--muted)}.reason-grid,.steps{display:grid;gap:20px}.reason,.step{background:white;padding:24px;border:1px solid var(--line);border-radius:12px}.reason{border-top:5px solid var(--blue)}.reason:nth-child(2){border-top-color:var(--yellow)}.reason:nth-child(3){border-top-color:var(--red)}.reason-num{color:var(--blue);font-size:26px;font-weight:900}.reason h3,.step h3{font-size:21px;margin:8px 0}.reason p,.step p{font-size:18px;color:var(--muted)}.step-label{display:inline-block;background:#e7efff;color:var(--blue);font-weight:900;font-size:14px;padding:3px 12px;border-radius:20px}.step-doc{display:inline-block;margin-top:16px;color:var(--blue);font-size:15px;text-underline-offset:4px}.sprite{display:block;width:76px;height:76px;margin-bottom:14px;background-image:url('assets/icon-sheet-original.png');background-size:400% 200%;background-repeat:no-repeat}.sprite--1{background-position:0 0}.sprite--2{background-position:33.333% 0}.sprite--3{background-position:66.667% 0}.sprite--4{background-position:100% 0}.sprite--5{background-position:0 100%}.sprite--6{background-position:33.333% 100%}.sprite--7{background-position:66.667% 100%}.sprite--8{background-position:100% 100%}.items-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.item{padding:18px 10px;border:1px solid var(--line);background:white;border-radius:10px;text-align:center;font-weight:700;font-size:16px}.item .sprite{margin:0 auto 12px}.cta-band{background:var(--navy);color:white}.cta-band.alt,.cta-phone{background:var(--yellow);color:var(--navy)}.cta-inner{max-width:var(--max);margin:auto;padding:30px 18px;display:flex;flex-direction:column;align-items:center;gap:20px;text-align:center}.cta-title{font-size:21px;font-weight:900}.cta-title small{display:block;font-size:14px;font-weight:500;margin-top:5px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.cta-inner .phone{font-size:30px}.cta-inner .phone small{font-size:13px}.cta-staff{display:none}.alt .btn-web,.cta-phone .btn-web{background:white}
.form-wrap{padding:24px 16px;background:white;border:1px solid var(--line);border-radius:14px}.form-lead{padding:12px;background:#fff7d8;margin-bottom:24px}.form-grid{display:grid;gap:22px}.field{display:flex;flex-direction:column;gap:8px;min-width:0}.field label{font-size:16px;font-weight:700}.req{margin-left:8px;color:#c22625;font-size:13px}.field input,.field select,.field textarea{width:100%;min-width:0;border:1px solid #aab8ce;border-radius:6px;background:#fafcff;padding:12px;color:var(--ink);font-size:16px}.field textarea{min-height:110px;resize:vertical}.upload-note{padding:12px;border:1px dashed #aab8ce;border-radius:6px;font-size:14px}.upload-note input{margin-top:12px;font-size:14px}.form-submit{text-align:center;margin-top:30px}.form-submit .btn{width:100%;max-width:380px}.form-note{font-size:13px;color:var(--muted);margin-top:16px;text-align:center}.line-card{display:grid;gap:26px;padding:24px 18px;background:#eafbf1;border:1px solid #cdefda;border-radius:18px}.line-body{grid-row:1}.line-staff{width:108px;height:108px;object-fit:cover;object-position:center;border:4px solid white;border-radius:50%;margin-bottom:16px}.line-copy h3{font-size:23px;line-height:1.5;margin-bottom:12px}.line-copy p{margin-bottom:18px;font-size:16px}.qr-block{text-align:center;font-size:14px}.qr-block>img{margin:auto;width:180px;height:auto}.qr-block .line-id{margin-top:16px;width:180px}.qr-block p{margin-top:8px}footer{background:var(--navy);color:#dce7ff;padding:40px 18px}.footer-inner{max-width:var(--max);margin:auto}.company-table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}.company-table th,.company-table td{text-align:left;vertical-align:top;border-bottom:1px solid #ffffff30;padding:12px 4px;overflow-wrap:anywhere}.company-table th{width:90px}.copyright{font-size:12px;margin-top:24px}dialog{border:0;border-radius:12px;padding:28px;max-width:calc(100% - 32px);width:600px}dialog::backdrop{background:#071f5c99}dialog h2{font-size:23px}dialog dl{max-height:55vh;overflow:auto}dialog dt{font-weight:700}dialog dd{margin:0 0 14px;overflow-wrap:anywhere}
@media(min-width:601px){.logo{width:140px}.site-header .phone{font-size:20px}.site-header .phone small,.site-header .phone svg,.site-header .btn-line{display:block}.site-header .btn{font-size:15px;padding:12px 20px}.hero-inner{padding:50px 30px 60px;min-height:650px}.hero-content{max-width:560px}.hero-staff{width:550px;height:760px;right:-90px;top:0}.hero h1{font-size:72px}.hero-lead{font-size:20px}.hero-sub{font-size:18px}.hero-actions{max-width:520px}.proof{font-size:14px;padding:12px 9px}.proof-grid{margin-top:16px}.hero-actions .btn{font-size:17px}.section{padding:64px 30px}.section h2{font-size:34px}.maker-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.maker img{height:85px}.maker span{font-size:13px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.field.full{grid-column:1/-1}.form-wrap{padding:36px}.line-card{grid-template-columns:1fr 210px;align-items:center;padding:36px}.line-body{grid-column:1;grid-row:1}.qr-block{grid-column:2}.company-table th{width:150px}}
@media(min-width:1000px){.header-inner{padding:10px 20px}.hero{background:linear-gradient(90deg,rgba(3,19,66,.96),rgba(3,19,66,.86) 37%,rgba(3,19,66,.48) 58%,rgba(3,19,66,.12) 76%),url('assets/tire-wheel-hero-v2.png') center/cover no-repeat}.hero-inner{min-height:670px;padding:60px 20px}.hero-staff{width:700px;height:850px;right:calc((100vw - 1440px)/2 + 100px);top:6px}.hero h1{font-size:84px}.hero-content{width:560px}.hero-phone{width:100%}.reason-grid,.steps{grid-template-columns:repeat(3,minmax(0,1fr))}.maker-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.items-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.cta-inner{flex-direction:row;flex-wrap:wrap;justify-content:center;text-align:left}.cta-title{max-width:480px}.cta-inner .phone{font-size:34px}.line-body{display:flex;align-items:center;gap:24px}.line-staff{flex:none;margin:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}