@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Noto+Serif+JP:wght@500;700&display=swap";
:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#333;--ink-soft:#555;--gold:#f0c24f;--gold-deep:#c88a1d;--brown:#8c2424;--accent:#d01818;--bg:#fff6f1;--line:#ead7c2;--paper:#fff;--shadow:0 16px 30px #0000001f;--serif:"Noto Serif JP","Hiragino Mincho ProN",serif;--sans:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif}*{box-sizing:border-box}body{font-family:var(--sans);color:var(--ink);text-align:center;background:linear-gradient(#fff7f7 0%,#fff6ee 45%,#f3e4d0 100%);margin:0}body:before{content:"";z-index:-1;pointer-events:none;background:linear-gradient(120deg,#d0181814,#0000 55%),repeating-linear-gradient(90deg,#00000006 0 1px,#0000 1px 28px);position:fixed;inset:0}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}p{margin:0;line-height:1.7}h1,h2,h3{font-family:var(--serif);margin:0 0 12px}ul{margin:0;padding:0;list-style:none}button{cursor:pointer;border:none;font-family:inherit}.site{text-align:center}.site-header{border-bottom:1px solid var(--line);background:linear-gradient(#fffaf8 0%,#f6eadb 100%)}.header-top{background:linear-gradient(90deg,#fff5f5,#f6e3cd)}.header-inner{text-align:left;justify-content:space-between;align-items:center;gap:20px;width:min(1200px,94vw);margin:0 auto;padding:24px 12px;display:flex}.logo-block{color:inherit;align-items:center;gap:16px;display:flex}.logo-block:hover{color:inherit}.logo-mark{color:#4b3a1c;background:linear-gradient(135deg,#f1e0b1,#c8a14b);border-radius:6px;place-items:center;width:84px;height:84px;font-size:34px;font-weight:700;display:grid;box-shadow:0 10px 20px #b3943959}.logo-text .tagline{color:#666;margin-bottom:8px;font-size:13px}.logo-text h1{margin:0;font-size:28px}.header-cta{text-align:right;justify-items:stretch;gap:10px;display:inline-grid}.header-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;display:grid}.header-links a{background:var(--brown);color:#fff;text-align:center;border-radius:4px;padding:6px 12px;font-size:12px;display:block}.header-phone{border:1px solid var(--line);background:#fff;padding:8px 12px;display:inline-block}.header-contact{justify-content:flex-start;align-items:stretch;gap:12px;width:100%;display:flex}.store-badge{background:var(--gold-deep);color:#fff;text-align:center;border-radius:6px;place-items:center;gap:2px;min-width:72px;padding:8px 12px;font-size:14px;font-weight:600;display:grid}.header-phone{flex-direction:column;justify-content:center;display:flex}.phone-number{color:var(--brown);font-size:20px;font-weight:700}.phone-hours{color:var(--ink-soft);font-size:12px}.global-nav{background:linear-gradient(#c82424,#9a1b1b)}.nav-list{text-align:center;justify-content:space-between;align-items:stretch;width:min(1200px,94vw);margin:0 auto;display:flex}.nav-item{border-right:1px solid #fff3;flex:1;position:relative}.nav-item:last-child{border-right:none}.nav-item>a{color:#fff;padding:14px 8px;font-size:14px;font-weight:500;display:block}.nav-item:hover{background:#0000001f}.nav-sub{border:1px solid var(--line);text-align:left;z-index:5;background:#fff;min-width:200px;display:none;position:absolute;top:100%;left:0;box-shadow:0 12px 20px #00000014}.nav-sub li a{color:var(--ink);border-bottom:1px solid var(--line);padding:8px 12px;font-size:13px;display:block}.nav-sub li:last-child a{border-bottom:none}.nav-item:hover .nav-sub{display:block}.hero{border-bottom:1px solid var(--line);background:radial-gradient(circle at 0 0,#fff6e0,#f7f2e6 55%,#f2efe8 100%);padding:28px 0 40px}.hero-inner{text-align:left;grid-template-columns:minmax(280px,1.2fr) minmax(280px,1fr);align-items:center;gap:24px;width:min(1200px,94vw);margin:0 auto;display:grid}.hero-copy h2{font-size:clamp(24px,3vw,34px)}.hero-copy p{color:var(--ink-soft);margin-bottom:16px}.hero-kicker{letter-spacing:.2em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:10px;font-size:12px}.hero-actions{flex-wrap:wrap;gap:12px;margin-bottom:16px;display:flex}.button{border-radius:4px;justify-content:center;align-items:center;padding:10px 18px;font-size:14px;font-weight:600;display:inline-flex}.button.primary{background:var(--brown);color:#fff;box-shadow:0 8px 16px #8c242447}.button.ghost{border:1px solid var(--brown);color:var(--brown);background:0 0}.hero-badges{flex-wrap:wrap;gap:8px;display:flex}.hero-badges span{border:1px solid 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var(--gold);background:#fffaf0;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;padding:12px 16px;display:flex}.tel-title{color:var(--ink-soft);font-size:12px}.tel-number{color:var(--brown);font-size:22px;font-weight:700}.tel-meta{color:var(--ink-soft);font-size:12px}.page-title{margin-bottom:12px;font-size:20px}.media-list{margin-bottom:20px;padding-left:20px}.media-list li{margin-bottom:6px;list-style:outside}.notice-list{gap:12px;margin-bottom:28px;display:grid}.notice-item{border:1px solid var(--gold);background:#fffdf6;padding:12px 14px}.notice-item summary{cursor:pointer;font-weight:600}.notice-item p{color:var(--ink-soft);margin-top:8px}.section{margin-bottom:32px}.section-title{border-left:6px solid var(--gold);background:linear-gradient(90deg,#f4ecd9,#fff);margin-bottom:16px;padding:10px 14px;font-weight:600}.section-title 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0;padding-left:20px;list-style:outside}.diamond-price{margin-top:8px}.diamond-tabs{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.diamond-tab{border:1px solid var(--line);color:var(--brown);cursor:pointer;background:#fff;border-radius:8px 8px 0 0;padding:8px 12px;font-weight:600}.diamond-tab[data-active=true]{border-color:var(--gold);background:#f4ecd9;box-shadow:inset 0 -2px #fff}.diamond-tab-panel{border:1px solid var(--line);background:#fffdf6;padding:16px}.diamond-note{color:var(--ink-soft);margin-bottom:12px;font-size:12px}.diamond-price-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.diamond-price-table{border-collapse:collapse;background:#fff;width:100%;font-size:13px}.diamond-price-table th,.diamond-price-table td{border:1px solid var(--line);padding:6px 8px}.diamond-price-table thead th{color:var(--brown);background:#f0e7d1}.diamond-price-table tbody th{text-align:left;font-weight:600}.diamond-price-table tbody td{text-align:right;color:var(--accent);font-weight:600}.diamond-price-note{margin-top:16px}.diamond-market{margin-top:28px}.diamond-market-lead{color:var(--ink-soft);margin-bottom:12px}.diamond-market-tag{border:1px solid var(--line);background:#fff;margin-bottom:12px;padding:6px 12px;font-weight:600;display:inline-block}.diamond-market-intro{color:var(--ink-soft);margin-bottom:16px}.diamond-market-guide{color:var(--ink-soft);background:#f7fbff;border:1px dashed #c6d7f3;margin-bottom:18px;padding:14px}.diamond-market-guide p+p{margin-top:8px}.diamond-sim{border:1px solid var(--line);background:#fff;padding:16px}.diamond-sim-layout{grid-template-columns:minmax(220px,1fr) minmax(0,1.2fr);gap:16px;display:grid}.diamond-sim-sample{border:1px solid var(--line);text-align:center;background:#faf7f1;padding:12px}.diamond-sim-image{min-height:180px;color:var(--brown);background:linear-gradient(120deg,#fff,#f3f7ff);border:1px solid 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8px;font-size:12px;display:block}.diamond-select-option[data-active=true]{color:var(--accent);background:#fff0c9;font-weight:600}.diamond-sim-actions{gap:8px;display:grid}.diamond-result{color:var(--brown);font-weight:600}.diamond-result span{color:var(--accent);margin-left:8px}.diamond-error{color:var(--accent);font-size:12px}.diamond-sim-notes{color:var(--ink-soft);margin-top:12px;font-size:12px}.diamond-sim-notes p+p{margin-top:4px}.notice-box{border:1px dashed var(--gold);padding:10px;font-size:12px}.buy-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.buy-card{border:1px solid var(--line);background:#fff;padding:16px;position:relative}.buy-label{background:var(--gold);color:#fff;padding:2px 6px;font-size:10px;position:absolute;top:12px;right:12px}.buy-card h3{margin-top:6px;font-size:18px}.info-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.info-grid div{border:1px solid 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a{color:var(--gold-deep);margin-top:8px;font-size:13px;text-decoration:underline;display:inline-block}.breadcrumb{text-align:left;width:min(1200px,94vw);color:var(--ink-soft);margin:0 auto;padding:14px 0 0;font-size:12px}.breadcrumb ul{flex-wrap:wrap;gap:6px;display:flex}.breadcrumb li:after{content:"＞";color:#b9b1a5;margin-left:6px}.breadcrumb li:last-child:after{content:""}.raremetal-hero{border-bottom:1px solid var(--line);background:linear-gradient(#fbf6ea 0%,#f1eadb 100%);padding:20px 0 28px}.raremetal-hero-inner{text-align:left;width:min(1200px,94vw);margin:0 auto}.raremetal-hero-banner{border:1px solid var(--line);background:linear-gradient(120deg,#f6e7b8,#f8f4ea);border-radius:10px;grid-template-columns:minmax(0,1fr) 180px;align-items:center;gap:20px;padding:24px;display:grid}.raremetal-hero-kicker{letter-spacing:.2em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:10px;font-size:12px}.raremetal-hero-highlight{border:1px solid 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var(--line);background:#fffdf6;align-items:flex-start;gap:16px;padding:12px 14px;display:flex}.colorstone-news-meta{min-width:88px;color:var(--ink-soft);flex-direction:column;gap:4px;font-size:12px;display:flex}.colorstone-news-tag{background:var(--gold);color:#fff;border-radius:999px;justify-content:center;align-items:center;width:fit-content;padding:2px 8px;font-size:11px;display:inline-flex}.colorstone-news-title{color:var(--brown);font-weight:600}.colorstone-news-date{font-weight:600}.colorstone-grid{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;display:grid}.colorstone-card{border:1px solid var(--line);background:#fff;gap:8px;padding:14px;display:grid}.colorstone-swatch{border:1px solid var(--line);background:linear-gradient(135deg,#f5e2b6,#f6f0e2);border-radius:8px;height:90px}.colorstone-card h3{font-size:15px}.colorstone-card p{color:var(--ink-soft);font-size:13px}.colorstone-related-button{margin-top:12px}.emerald-intro{margin-bottom:20px}.emerald-alert{border:1px solid var(--gold);background:#fffaf0;margin-top:12px;padding:12px}.emerald-alert-title{margin-bottom:6px;font-weight:600}.emerald-alert ul{color:var(--ink-soft);padding-left:20px;list-style:outside}.emerald-image-placeholder{border:1px solid var(--line);color:#2c5b45;letter-spacing:.08em;background:linear-gradient(135deg,#e4f0dc,#f6f2e8);place-items:center;min-height:150px;font-size:12px;font-weight:700;display:grid}.emerald-purchase-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.emerald-purchase-card{border:1px solid var(--line);background:#fff;gap:10px;padding:14px;display:grid}.emerald-card-title{color:var(--brown);font-weight:600}.emerald-column-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;display:grid}.emerald-column-list ul{border:1px solid var(--line);color:var(--ink-soft);background:#fff;padding:12px 16px;list-style:outside}.emerald-column-list li{margin-bottom:6px}.emerald-caution{border:1px solid var(--line);background:#f8f6f1;margin-top:12px;padding:12px}.emerald-caution ul{color:var(--ink-soft);padding-left:20px;list-style:outside}.emerald-feature{margin-top:16px}.emerald-feature-table{border-collapse:collapse;width:100%;font-size:14px}.emerald-feature-table th,.emerald-feature-table td{border:1px solid var(--line);text-align:left;padding:8px 10px}.emerald-feature-table th{background:#f4ecd9;width:140px}.sapphire-feature-table th,.ruby-feature-table 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