/* ===================================================================
   念云 (niancloud.shop) - 无印良品日系极简系统 (Muji Japanese Natural Linen)
   =================================================================== */
:root {
  --muji-bg: #f7f5f0;
  --muji-surface: #ffffff;
  --muji-text: #292524;
  --muji-muted: #78716c;
  --muji-border: #e7e5df;
  --muji-accent: #78716c;
  --muji-wood: #8c7b6c;
  --muji-shadow: 0 4px 16px rgba(41, 37, 36, 0.04);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--muji-bg);
  color: var(--muji-text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.02em;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 28px; }
header.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--muji-border);
}
.header-inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 68px; max-width: 1100px; margin: 0 auto; padding: 0 28px;
}
.brand-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--muji-text);
  font-weight: 700; font-size: 1.25rem;
}
.muji-tag {
  font-size: 0.72rem; color: var(--muji-muted);
  background: rgba(0, 0, 0, 0.04); padding: 2px 8px; border-radius: 2px;
  border: 1px solid var(--muji-border);
}
nav.main-nav ul { display: flex; list-style: none; gap: 24px; align-items: center; }
nav.main-nav a {
  color: var(--muji-muted); text-decoration: none; font-size: 0.92rem;
  font-weight: 500; transition: color 0.2s;
}
nav.main-nav a:hover, nav.main-nav a.active { color: var(--muji-text); font-weight: 700; }
.header-cta {
  background: var(--muji-text); color: #fff !important;
  font-size: 0.88rem; font-weight: 600; padding: 8px 18px; border-radius: 2px;
  text-decoration: none; transition: opacity 0.2s;
}
.header-cta:hover { opacity: 0.85; }

/* HERO MUJI */
.hero-muji { padding: 75px 0 85px; }
.hero-muji-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 50px; align-items: center; }
.muji-kicker {
  font-size: 0.8rem; letter-spacing: 0.15em; color: var(--muji-wood);
  font-weight: 700; margin-bottom: 16px;
}
.hero-title {
  font-size: 2.6rem; font-weight: 700; line-height: 1.35; margin-bottom: 20px;
  color: var(--muji-text);
}
.hero-desc {
  font-size: 1.02rem; color: var(--muji-muted); line-height: 1.85; margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; align-items: center; }
.btn-muji-primary {
  background: var(--muji-text); color: #fff; font-size: 0.95rem; font-weight: 600;
  padding: 13px 28px; border-radius: 2px; text-decoration: none;
}
.btn-muji-outline {
  background: transparent; color: var(--muji-text); font-size: 0.95rem; font-weight: 600;
  padding: 12px 24px; border-radius: 2px; text-decoration: none;
  border: 1px solid var(--muji-border);
}

/* ZEN LATENCY WIDGET */
.zen-dial-card {
  background: var(--muji-surface); border: 1px solid var(--muji-border);
  padding: 32px 28px; border-radius: 4px; box-shadow: var(--muji-shadow);
  text-align: center;
}
.zen-dial-circle {
  width: 140px; height: 140px; margin: 0 auto 20px; border-radius: 50%;
  border: 1px solid var(--muji-border); display: flex; flex-direction: column;
  align-items: center; justify-content: center; background: #faf9f6;
}
.zen-ping-num { font-size: 2.2rem; font-weight: 700; color: var(--muji-text); line-height: 1; }
.zen-ping-unit { font-size: 0.75rem; color: var(--muji-muted); margin-top: 4px; }
.zen-specs { display: flex; justify-content: space-around; margin: 20px 0; border-top: 1px solid var(--muji-border); padding-top: 16px; }
.zen-spec-item { font-size: 0.85rem; color: var(--muji-muted); }
.zen-spec-item strong { display: block; color: var(--muji-text); font-size: 1rem; }
.btn-zen-refresh {
  background: transparent; border: 1px solid var(--muji-border); color: var(--muji-text);
  font-size: 0.85rem; padding: 8px 18px; border-radius: 2px; cursor: pointer;
  transition: all 0.2s;
}
.btn-zen-refresh:hover { background: #f0eee8; }

/* NATURAL CARDS */
.section-muji { padding: 70px 0; border-top: 1px solid var(--muji-border); }
.muji-head { margin-bottom: 40px; }
.muji-head h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.muji-head p { color: var(--muji-muted); font-size: 0.95rem; }
.muji-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.muji-card {
  background: var(--muji-surface); border: 1px solid var(--muji-border);
  padding: 28px 24px; border-radius: 2px;
}
.muji-card-num { font-size: 0.75rem; color: var(--muji-wood); font-weight: 700; margin-bottom: 12px; }
.muji-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--muji-text); }
.muji-card p { font-size: 0.92rem; color: var(--muji-muted); line-height: 1.8; }

/* PRICING */
.muji-pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.muji-plan {
  background: var(--muji-surface); border: 1px solid var(--muji-border);
  padding: 36px 28px; border-radius: 2px; position: relative;
}
.muji-plan.featured { border: 2px solid var(--muji-text); }
.muji-plan h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.muji-plan-price { font-size: 2.2rem; font-weight: 700; margin: 16px 0; color: var(--muji-text); }
.muji-plan-price span { font-size: 0.85rem; color: var(--muji-muted); font-weight: 400; }
.muji-plan ul { list-style: none; margin-bottom: 28px; }
.muji-plan li { padding: 8px 0; border-bottom: 1px solid var(--muji-border); font-size: 0.9rem; color: var(--muji-muted); }

footer.site-footer {
  background: var(--muji-surface); border-top: 1px solid var(--muji-border);
  padding: 50px 0 30px; margin-top: 70px;
}
.footer-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; margin-bottom: 20px; }
.footer-grid a { color: var(--muji-muted); text-decoration: none; font-size: 0.88rem; }
.footer-bottom { text-align: center; color: var(--muji-muted); font-size: 0.82rem; }

/* ARTICLE & LEGAL */
.legal-card, .article-content, .article-container, .article-body, .article-page {
  max-width: 860px; margin: 40px auto 80px; background: #ffffff;
  border: 1px solid var(--muji-border); padding: 44px; border-radius: 2px;
}
.legal-card h1, .article-content h1 { font-size: 2rem; font-weight: 700; margin-bottom: 18px; color: var(--muji-text); }
.legal-card h2, .article-content h2 {
  font-size: 1.35rem; font-weight: 700; margin: 30px 0 12px;
  border-bottom: 1px solid var(--muji-border); padding-bottom: 8px; color: var(--muji-text);
}
.legal-card p, .article-content p { font-size: 1rem; line-height: 1.85; color: #44403c; margin-bottom: 16px; }
.legal-card ul, .article-content ul { margin-left: 20px; margin-bottom: 20px; color: #44403c; }