/*
Theme Name: Sei Foodservice Theme
Theme URI: https://example.com/sei-foodservice-theme
Author: ChatGPT
Description: 聖フードサービス株式会社用のワンページ企業サイトテーマ（フードイメージ版ヒーロー）。
Version: 1.0.1
Text Domain: sei-foodservice-theme
*/
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Hiragino Kaku Gothic ProN',Meiryo,'Noto Sans JP','Helvetica Neue',Arial,sans-serif;color:#0c1220;background:#fff;line-height:1.85}
a{color:inherit}
img{max-width:100%;display:block;height:auto}
.container{width:min(1200px,92%);margin:0 auto}
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid #e5e7eb}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand a{text-decoration:none;font-weight:800;letter-spacing:.02em}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{text-decoration:none;font-weight:700;color:#374151}
.nav a:hover{color:#111827}
.hero{position:relative;isolation:isolate;padding:120px 0 96px;background:url('assets/hero.jpg') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,.35));z-index:0}
.hero>.container{position:relative;z-index:1;color:#fff}
.hero h1{margin:0 0 10px;font-size:clamp(30px,5vw,64px);line-height:1.12}
.hero .cta{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;border:1px solid #111827;border-radius:14px;padding:12px 18px;font-weight:800;text-decoration:none}
.btn-primary{background:#111827;color:#fff;border-color:#111827}
.btn-ghost{background:#fff;color:#111827}
.btn:hover{opacity:.92}
.section{padding:64px 0;border-top:1px solid #f1f5f9}
.section-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.section-no{font-weight:800;opacity:.12;font-size:clamp(28px,6vw,64px);line-height:1}
.section-title{margin:0;font-size:clamp(22px,3.2vw,34px)}
.lead{color:#4b5563;margin:6px 0 20px}
.grid-2{display:grid;gap:18px}
@media (min-width:900px){.grid-2{grid-template-columns:1fr}}
.grid-3{display:grid;gap:18px}
@media (min-width:760px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.card{border:1px solid #e5e7eb;border-radius:18px;padding:18px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card h3{margin:0 0 8px;font-size:18px}
.muted{color:#6b7280}
.news-list{display:grid;gap:12px}
.news-item{display:flex;gap:12px;align-items:baseline}
.news-date{font-size:14px;color:#6b7280;min-width:100px}
.details{display:grid;gap:8px}
.dt{color:#6b7280;min-width:120px}
.row{display:grid;grid-template-columns:140px 1fr;gap:12px;border-bottom:1px dashed #e5e7eb;padding:10px 0}
@media (max-width:520px){.row{grid-template-columns:1fr} .dt{min-width:auto}}
.footer{background:#0b1220;color:#9ca3af;margin-top:40px}
.footer-inner{padding:26px 0}
.copy{font-size:14px}