:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --green:#059669;
  --yellow:#ca8a04;
  --red:#dc2626;
  --shadow:0 14px 40px rgba(15,23,42,.08);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans JP",sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 32px));margin-inline:auto}

/* header */
.site-header,.admin-topbar{background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.header-inner,.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px}
.site-logo,.brand{font-size:28px;font-weight:900;color:var(--primary);letter-spacing:-.02em}
.public-nav{display:flex;gap:20px;align-items:center}
.public-nav a{font-size:14px;font-weight:700;color:#334155}
.public-nav a:hover{color:var(--primary)}
.top-note{border-top:1px solid rgba(226,232,240,.8);background:#f8fbff}
.top-note-inner{display:flex;justify-content:space-between;gap:12px;padding:10px 0;font-size:13px;color:#334155}
.trust-mini{color:var(--muted)}

/* hero */
.hero{padding:56px 0;border-bottom:1px solid var(--line)}
.hero-deals{background:
 radial-gradient(circle at top left, rgba(37,99,235,.14), transparent 32%),
 radial-gradient(circle at 85% 20%, rgba(14,165,233,.12), transparent 22%),
 linear-gradient(180deg,#f1f6ff 0%,#f8fbff 58%,#f5f7fb 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:28px;align-items:center}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.hero-chip{display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;background:#dbeafe;color:#1d4ed8;font-size:12px;font-weight:800}
.eyebrow{letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:800;font-size:13px;margin:0 0 10px}
.hero h1{font-size:clamp(34px,6vw,64px);line-height:1.05;margin:0 0 16px;letter-spacing:-.04em}
.hero h1 span{display:block;color:#1d4ed8}
.lead{font-size:20px;font-weight:700;margin:0 0 10px}
.hero-copy{font-size:15px;max-width:760px}
.hero-side-stack{display:grid;gap:16px}
.hero-card,.panel,.product-card,.offer-card,.stat-card,.login-card,.benefit-card,.sale-banner-card,.feature-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.search-box,.inline-form{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.deal-search-box{margin-top:22px;padding:18px;background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.search-box input{min-width:260px;flex:1}
input,select,textarea{width:100%;border:1px solid #dbe2ea;border-radius:14px;padding:12px 13px;background:white;font:inherit;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(37,99,235,.2);border-color:#93c5fd}
label{display:grid;gap:6px;font-weight:700;font-size:14px;color:#344054}
button,.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:14px;padding:12px 18px;background:var(--primary);color:#fff;font-weight:800;cursor:pointer;transition:.18s;box-shadow:0 10px 20px rgba(37,99,235,.16)}
.button:hover,button:hover{background:var(--primary-dark);transform:translateY(-1px)}
.button.ghost{background:#eff6ff;color:var(--primary);width:100%;margin-top:12px;box-shadow:none}
.button.wide{width:100%;font-size:16px}
.button.secondary, button.secondary{background:#0f766e;color:#fff}.button.secondary:hover,button.secondary:hover{background:#115e59}
.danger,button.danger{background:#dc2626}.danger:hover,button.danger:hover{background:#b91c1c}

.sale-banner-card{padding:24px;background:linear-gradient(135deg,#1d4ed8,#2563eb 55%,#38bdf8);color:#fff;overflow:hidden;position:relative}
.sale-banner-card::after{content:"SALE";position:absolute;right:-8px;top:-10px;font-size:68px;font-weight:900;letter-spacing:.08em;color:rgba(255,255,255,.09);transform:rotate(12deg)}
.sale-top{display:inline-flex;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.16);font-size:12px;font-weight:900;margin-bottom:10px}
.sale-banner-card h2{margin:0 0 10px;font-size:27px;line-height:1.2}
.sale-banner-card p{margin:0 0 14px;color:rgba(255,255,255,.92)}
.coupon-strip{display:flex;gap:8px;flex-wrap:wrap}
.coupon-strip span{padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.14);font-size:12px;font-weight:800}
.stats-band{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stats-band-card{padding:18px;border-radius:20px;background:linear-gradient(180deg,#ffffff,#f8fbff);border:1px solid var(--line);box-shadow:var(--shadow)}
.stats-band-card span{display:block;color:var(--muted);font-size:13px}.stats-band-card strong{display:block;margin-top:6px;font-size:28px;letter-spacing:-.02em}

.popular-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px}
.popular-label{font-size:13px;font-weight:700;color:var(--muted)}
.tag-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:#334155}
.tag-chip:hover{border-color:#93c5fd;color:var(--primary)}

.promo-strip{padding:16px 0 2px}
.promo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.promo-box{padding:16px 18px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f8fafc);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;justify-content:space-between;gap:10px;align-items:center}
.promo-box strong{font-size:18px}.promo-box span{font-size:14px;color:var(--muted)}

/* benefits */
.benefit-strip{padding:26px 0 8px}
.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.benefit-card{padding:22px}
.benefit-card h2{font-size:20px;margin:12px 0 8px}.benefit-card p{margin:0;color:var(--muted);font-size:14px}
.benefit-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#eff6ff;color:#1d4ed8;font-weight:900;font-size:20px}

/* genre shortcuts */
.genre-shortcuts-wrap{padding:10px 0}
.genre-shortcuts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px}
.genre-tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:18px;min-height:110px;padding:18px;box-shadow:var(--shadow);text-align:center}
.genre-tile:hover{transform:translateY(-2px);border-color:#93c5fd}
.genre-icon{font-size:28px}
.genre-name{font-size:14px;font-weight:800;color:#334155}

/* common */
.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:34px 0 18px}
.section-title h2{margin:0;font-size:28px;letter-spacing:-.03em}
.section-title.compact{margin:0 0 12px}
.section-title.compact h2{font-size:1.34rem}
.section-title.compact a{font-weight:800;color:var(--primary)}
.section-pill{display:inline-flex;align-items:center;padding:7px 11px;border-radius:999px;background:#e0f2fe;color:#0369a1;font-size:13px;font-weight:800}
.section-subcopy{margin:4px 0 0}
.muted,.meta-line{color:var(--muted);font-size:13px}
.empty{background:white;border:1px dashed #cbd5e1;padding:28px;border-radius:18px;color:var(--muted)}

/* feature sections */
.feature-sections-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:8px}
.feature-panel{padding:20px}
.feature-head h3{margin:6px 0 4px;font-size:24px}
.feature-head p{margin:0;color:var(--muted);font-size:14px}
.feature-accent{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-size:12px;font-weight:900}
.feature-items{display:grid;gap:14px;margin-top:16px}
.feature-item-card{display:grid;grid-template-columns:88px 1fr;gap:12px;padding:12px;border:1px solid var(--line);border-radius:18px;background:#fbfdff}
.feature-thumb{position:relative;height:88px;display:grid;place-items:center;background:#f1f5f9;border-radius:14px;overflow:hidden}
.feature-thumb img{width:100%;height:100%;object-fit:contain;padding:8px}
.feature-rank{position:absolute;top:8px;left:8px;padding:4px 8px;border-radius:999px;background:#1d4ed8;color:#fff;font-size:11px;font-weight:900}
.feature-body h4{font-size:14px;line-height:1.5;margin:2px 0 8px}
.mini-flags{margin:6px 0 8px}

/* products */
.recommend-section{margin:24px 0 34px;padding:20px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(248,250,252,.94));box-shadow:var(--shadow)}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.compact-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.product-card{overflow:hidden;display:flex;flex-direction:column}
.product-image{position:relative;height:210px;display:grid;place-items:center;background:linear-gradient(180deg,#f8fbff,#eff6ff);color:#94a3b8}.compact-grid .product-image{height:170px}
.product-image img{width:100%;height:100%;object-fit:contain;padding:14px}
.floating-badge{position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900;box-shadow:0 8px 18px rgba(15,23,42,.08)}
.product-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.product-body h3{font-size:16px;line-height:1.5;min-height:52px;margin:0}
.price-row,.mini-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.price-row strong{font-size:25px;color:#0f172a;letter-spacing:-.03em}
.mini-point{font-size:12px;font-weight:800;color:#1d4ed8;background:#eff6ff;padding:5px 8px;border-radius:999px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800;white-space:nowrap}.badge-green{background:#ecfdf3;color:#027a48}.badge-blue{background:#eff6ff;color:#1d4ed8}.badge-yellow{background:#fffaeb;color:#b54708}.badge-red{background:#fef2f2;color:#b42318}
.deal-flags{display:flex;gap:6px;flex-wrap:wrap}
.flag{display:inline-flex;align-items:center;padding:4px 8px;border-radius:999px;font-size:11px;font-weight:900}
.flag-official{background:#dcfce7;color:#166534}
.flag-review{background:#fef3c7;color:#92400e}
.flag-free{background:#dbeafe;color:#1d4ed8}
.flag-coupon{background:#fee2e2;color:#b91c1c}

/* product detail */
.product-detail{padding-top:28px}
.back-link{color:var(--primary);font-weight:800}
.detail-head{display:grid;grid-template-columns:300px 1fr;gap:28px;background:white;border:1px solid var(--line);border-radius:24px;padding:24px;margin-top:14px;box-shadow:var(--shadow)}
.detail-image{background:#f8fafc;border-radius:18px;display:grid;place-items:center;min-height:280px}.detail-image img{max-height:280px;object-fit:contain}
.detail-guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.detail-guide-card{padding:14px;border:1px solid var(--line);border-radius:16px;background:#f8fbff}.detail-guide-card strong{display:block}.detail-guide-card span{display:block;color:var(--muted);font-size:13px}
.offer-list{display:grid;gap:14px}.offer-card{display:grid;grid-template-columns:74px 1fr 190px 170px 120px;gap:16px;align-items:center;padding:18px}.offer-card.best{border-color:#93c5fd;background:linear-gradient(180deg,#fff,#eff6ff)}.offer-rank{font-weight:900;color:var(--primary)}.offer-price strong{display:block;font-size:26px}.offer-price small,.score-box span{display:block;color:var(--muted);font-size:12px}.coupon{display:inline-flex;background:#fff7ed;color:#c2410c;border-radius:10px;padding:4px 8px;font-weight:700;margin-top:6px}

/* footer */
.site-footer{margin-top:56px;background:#0f172a;color:#e5e7eb;padding:38px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.footer-brand{font-size:24px;font-weight:900;margin-bottom:8px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px;color:#cbd5e1}
.footer-links a{color:#e5e7eb}
.footer-bottom{padding-top:20px;margin-top:20px;border-top:1px solid rgba(255,255,255,.08)}

/* admin/common legacy */
.admin-container{padding-top:24px}.admin-topbar{align-items:flex-start}.admin-topbar nav{justify-content:flex-end;display:flex;gap:14px;flex-wrap:wrap}.admin-topbar nav a{padding:2px 0;font-size:14px;color:#475467}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:18px 0}.stat-card{padding:18px}.stat-card span{color:var(--muted);font-size:13px}.stat-card strong{display:block;font-size:30px}.panel{padding:20px;margin-bottom:18px}.form-grid{display:grid;gap:18px}.form-grid.two{grid-template-columns:1fr 1fr}.panel h2{margin-top:0}.alert{padding:12px 14px;border-radius:12px;margin:12px 0;font-weight:700}.alert-success{background:#ecfdf3;color:#027a48}.alert-error{background:#fef2f2;color:#b42318}.alert-info{background:#eff6ff;color:#1d4ed8}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:white}th,td{padding:11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{font-size:12px;color:var(--muted);text-transform:uppercase;background:#f8fafc}.thumb{width:70px;height:70px;object-fit:contain}.login-page{min-height:100vh;display:grid;place-items:center}.login-card{width:min(420px,calc(100% - 32px));padding:28px}.login-card h1{margin-top:0}.check{display:flex;align-items:center;gap:8px}.check input{width:auto}.inline-mini{display:inline}.inline-mini button{padding:6px 10px;font-size:12px}code{display:block;white-space:normal;background:#f8fafc;border:1px solid var(--line);padding:12px;border-radius:12px;margin-top:8px}
.site-tagline{font-size:12px;color:var(--muted);align-self:center}
.dashboard-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.full-row{grid-column:1/-1}.button.ghost-inline,.ghost-inline{background:#eff6ff;color:var(--primary);width:auto;margin-top:0}.panel details{margin-top:12px}.panel summary{cursor:pointer;font-weight:700}.stat-card strong{word-break:break-word}.table-wrap td,.table-wrap th{white-space:nowrap}.table-wrap td:nth-child(4),.table-wrap td:nth-child(5){white-space:normal}.form-grid.two button{align-self:end}.small-input{max-width:86px}.mode-note{padding:12px 14px;border-radius:16px;background:#f8fafc;border:1px solid var(--line)}

@media(max-width:1100px){
  .feature-sections-grid,.benefits-grid,.promo-grid,.footer-grid,.detail-guide-grid{grid-template-columns:1fr}
}
@media(max-width:980px){
  .hero-grid,.dashboard-columns,.detail-head{grid-template-columns:1fr}
  .public-nav{gap:14px;flex-wrap:wrap;justify-content:flex-end}
  .stats-band{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .admin-topbar{display:block}.admin-topbar nav{margin-top:10px}
  .search-box input{min-width:100%}
  .offer-card{grid-template-columns:1fr}
  .top-note-inner{display:block}.top-note-inner span + span{display:block;margin-top:4px}
}
@media(max-width:640px){
  .site-logo,.brand{font-size:22px}
  .header-inner{padding:14px 0}
  .public-nav{display:none}
  .hero{padding:40px 0}
  .hero h1{font-size:36px}
  .lead{font-size:17px}
  .stats-band,.product-grid,.compact-grid,.genre-shortcuts,.feature-sections-grid,.promo-grid{grid-template-columns:1fr}
  .container{width:min(100% - 24px,1180px)}
  .feature-item-card{grid-template-columns:72px 1fr}
  .feature-thumb{height:72px}
}