/* ============================================================
 * blog-common.css
 * お役立ちコラム(ブログ記事)全ページで完全に共通のスタイル。
 * 各記事の<style>タグより前に読み込むこと。
 * ============================================================ */

:root{
  --bg: #EFEAE0; --bg-card: #FBF9F4; --bg-card-soft: #E3DBC9;
  --ink: #2C2620; --ink-soft: #6B6255;
  --pine: #45564A; --pine-deep: #313F35;
  --gold: #A9824C; --gold-soft: #C9AD7C;
  --line: rgba(44,38,32,0.14);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth; overflow-x:hidden;}
body{ background:var(--bg); color:var(--ink); font-family:'Noto Sans JP', sans-serif; line-height:1.9; -webkit-font-smoothing:antialiased; max-width:100vw; }
h1,h2,h3,.mincho{ font-family:'Shippori Mincho', serif; font-weight:600; letter-spacing:0.02em; }
a{ color:var(--pine); text-decoration:none; }
img{ max-width:100%; }
.wrap{ max-width:820px; margin:0 auto; padding:0 24px; }
header{ position:sticky; top:0; z-index:50; background:rgba(239,234,224,0.92); backdrop-filter:blur(6px); border-bottom:1px solid var(--line); }
.header-inner{ display:flex; align-items:flex-end; justify-content:space-between; padding:16px 24px; max-width:1120px; margin:0 auto; flex-wrap:wrap; row-gap:8px; }
.logo{ font-family:'Shippori Mincho', serif; font-size:20px; font-weight:700; letter-spacing:0.12em; display:flex; align-items:flex-end; gap:10px; color:var(--ink); text-decoration:none; }
.logo .mark{ font-size:1.7em; margin-right:1px; }
.logo-img{ height:76px; width:auto; display:block; }
.logo span{ font-size:10.5px; font-weight:400; color:var(--ink-soft); letter-spacing:0.06em; }
.logo-kana{ font-size:13px !important; color:var(--ink) !important; font-weight:600 !important; }
.nav-links{ display:flex; align-items:center; gap:10px; font-size:13.5px; font-family:'Shippori Mincho', serif; font-weight:600; padding-bottom:2px; }
.nav-links a{ padding:7px 16px; border:1px solid var(--line); border-radius:999px; transition:background .15s ease, border-color .15s ease, color .15s ease; white-space:nowrap; }
.nav-links a:hover{ background:var(--bg-card); border-color:var(--gold); }
.nav-links a.current{ color:var(--gold); font-weight:700; }
.header-phone{ display:flex; align-items:center; gap:8px; }
.header-right-group{ display:flex; align-items:center; gap:14px; }
.header-phone .num{ font-family:'Shippori Mincho', serif; font-size:17px; font-weight:600; color:var(--ink); white-space:nowrap; }
.header-phone .label{ font-size:9.5px; color:var(--ink-soft); }
.eyebrow{ font-family:'Shippori Mincho', serif; font-size:12px; letter-spacing:0.28em; color:var(--gold); display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--gold); }
/* ---- ブログ一覧 ---- */
.blog-hero{ padding:56px 0 30px; }
.blog-hero h1{ font-size:clamp(24px,3.4vw,32px); line-height:1.6; margin-bottom:12px; }
.blog-hero p{ color:var(--ink-soft); font-size:14px; }
.article-list{ padding:10px 0 80px; display:flex; flex-direction:column; gap:2px; background:var(--line); border:1px solid var(--line); }
.article-card{ background:var(--bg-card); padding:26px 28px; display:block; transition:background .2s ease; }
.article-card:hover{ background:var(--bg-card-soft); }
.article-card .date{ font-size:11px; color:var(--gold); letter-spacing:0.08em; margin-bottom:8px; }
.article-card h2{ font-size:17px; color:var(--ink); margin-bottom:8px; line-height:1.6; }
.article-card p{ font-size:13px; color:var(--ink-soft); }
/* ---- 記事詳細 ---- */
.article-hero{ padding:44px 0 20px; border-bottom:1px solid var(--line); margin-bottom:36px; }
.article-hero .date{ font-size:12px; color:var(--gold); letter-spacing:0.08em; margin-bottom:14px; }
.article-hero h1{ font-size:clamp(23px,3.4vw,30px); line-height:1.6; }
.article-body{ padding-bottom:70px; font-size:15px; }
.article-body h2{ font-size:19px; color:var(--pine-deep); margin:38px 0 14px; padding-top:6px; }
.article-body h3{ font-size:16px; color:var(--ink); margin:26px 0 10px; }
.article-body p{ margin-bottom:16px; color:var(--ink); }
.article-body ul,.article-body ol{ margin:0 0 16px 22px; }
.article-body li{ margin-bottom:6px; }
.article-body table{ width:100%; border-collapse:collapse; margin:18px 0 22px; font-size:13.5px; }
.article-body th,.article-body td{ border:1px solid var(--line); padding:10px 12px; text-align:left; }
.article-body th{ background:var(--bg-card-soft); font-family:'Shippori Mincho', serif; }
.article-body hr{ border:none; border-top:1px solid var(--line); margin:34px 0; }
.article-body strong{ color:var(--pine-deep); }
.article-cta{ background:var(--pine); color:#F5F1E6; padding:30px 32px; margin-top:10px; }
.article-cta p{ font-size:13.5px; color:#E6E1D2; margin-bottom:18px; line-height:1.8; }
.article-cta a.btn{ display:inline-flex; align-items:center; gap:8px; background:var(--gold); color:#fff; padding:13px 26px; font-size:13.5px; letter-spacing:0.04em; }
.back-link{ display:inline-flex; align-items:center; gap:6px; font-size:13px; color:var(--ink-soft); margin-bottom:20px; }
footer{ background:var(--ink); color:#B9B2A2; padding:40px 24px 24px; font-size:12px; text-align:center; }
footer a{ color:#D8D3C0; }
.footer-note{ margin-top:20px; font-size:10.5px; color:#8A8272; max-width:640px; margin-left:auto; margin-right:auto; }
@media (max-width:640px){
  .header-inner{ padding:12px 18px; flex-wrap:wrap; row-gap:10px; align-items:center; }
  .logo{ font-size:16px; align-items:center; gap:8px; } .logo .mark{ font-size:1.5em; } .logo-img{ height:34px; }
  .logo-tagline{ display:none; }
  .nav-links{
    display:flex; flex-basis:100%; justify-content:center;
    gap:8px; font-size:11.5px; font-weight:600;
    border-top:1px solid var(--line); padding-top:10px;
  }
  .nav-links a{ padding:6px 12px; border:1px solid var(--line); border-radius:999px; line-height:1.2; }
  .header-right-group{ margin-left:auto; gap:8px; }
  .header-phone{ gap:6px; }
  .header-phone .num{ font-size:14px; }
  .header-phone .label{ display:none; }
  .article-card{ padding:20px 20px; }
}
.breadcrumb{ font-size:12px; color:var(--ink-soft); margin-bottom:14px; display:flex; flex-wrap:wrap; align-items:center; gap:6px; }
.breadcrumb a{ color:var(--ink-soft); text-decoration:none; }
.breadcrumb a:hover{ color:var(--pine-deep); text-decoration:underline; }
.breadcrumb .sep{ color:#C9C2AE; }
.breadcrumb .current{ color:var(--ink); }