:root {
  --green-900: #1a3c2e;
  --green-700: #2d5a43;
  --green-600: #3d7a58;
  --green-500: #52a06f;
  --green-100: #e8f3ec;
  --green-50: #f4faf6;
  --cream: #fbf8f1;
  --warm: #f6efe3;
  --gold: #c9920e;
  --gold-soft: #fff4d6;
  --text: #33413a;
  --muted: #6b7a71;
  --white: #ffffff;
  --red: #c0392b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Kanit', 'Segoe UI', Tahoma, sans-serif;
  font-size: 19px;
  line-height: 2;
  color: var(--text);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.6em; }
h1, h2, h3, h4 { color: var(--green-900); line-height: 1.4; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Top bar */
.topbar { background: var(--green-700); color: #eaf5ee; font-size: 14px; padding: 6px 0; }
.topbar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px; }
.topbar a { color: #ffffff; }

/* Header */
.site-header { background: var(--white); box-shadow: 0 2px 12px rgba(26,60,46,.08); padding: 14px 0; position: sticky; top: 0; z-index: 100; }
.site-header .container { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.logo { font-size: 26px; font-weight: 700; color: var(--green-900); letter-spacing: .5px; line-height: 1.2; }
.logo span { color: var(--green-500); }
.logo small { display: block; font-size: 12px; font-weight: 400; color: var(--gold); letter-spacing: 2px; text-transform: uppercase; }

.main-nav { display: flex; gap: 8px; flex-wrap: wrap; }
.main-nav a {
  background: #fff;
  border: 1.5px solid var(--green-100);
  color: var(--green-700);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 15px;
  font-weight: 400;
}
.main-nav a:hover { background: var(--green-100); text-decoration: none; }
.main-nav a.active { background: var(--green-600); color: #fff; border-color: var(--green-600); }
.menu-toggle { display: none; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--green-700), var(--green-500)); color: #fff; padding: 50px 0; }
.hero h1 { color: #fff; font-size: 38px; margin-bottom: 12px; }
.hero p { max-width: 720px; font-size: 19px; opacity: .95; }
.hero .badge { display: inline-block; background: var(--gold-soft); color: var(--green-900); padding: 4px 14px; border-radius: 20px; font-size: 14px; margin-bottom: 14px; font-weight: 500; }

/* Quick answer box (AI-search friendly) */
.quick-answer { background: var(--white); border: 2px solid var(--green-100); border-left: 6px solid var(--green-500); border-radius: 12px; padding: 22px 26px; margin: 28px 0; }
.quick-answer h2 { font-size: 20px; margin-bottom: 8px; color: var(--green-700); }
.quick-answer p { margin: 0; }

/* Sections */
.section { padding: 50px 0; }
.section-header { text-align: center; margin-bottom: 34px; }
.section-header .tag { display: inline-block; font-size: 14px; color: var(--green-600); background: var(--green-100); padding: 4px 16px; border-radius: 20px; margin-bottom: 10px; }
.section-header h2 { font-size: 30px; }
.section-header p { color: var(--muted); max-width: 640px; margin: 8px auto 0; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.card { background: var(--white); border-radius: 14px; overflow: hidden; box-shadow: 0 4px 16px rgba(26,60,46,.08); transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(26,60,46,.14); }
.card-img { aspect-ratio: 1 / 1; background: var(--green-50); overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card h3 { font-size: 19px; }
.card h3 a { color: var(--green-900); }
.card h3 a:hover { color: var(--green-600); }
.card .rating { color: var(--gold); font-size: 15px; }
.card .price { font-weight: 700; color: var(--green-700); }
.card .price s { color: var(--muted); font-weight: 400; margin-right: 6px; }
.card .desc { font-size: 15px; color: var(--muted); line-height: 1.7; flex: 1; }
.btn { display: inline-block; background: var(--green-600); color: #fff; padding: 10px 22px; border-radius: 24px; font-weight: 500; text-align: center; }
.btn:hover { background: var(--green-500); text-decoration: none; }
.btn.gold { background: var(--gold); }
.btn.outline { background: #fff; color: var(--green-700); border: 1.5px solid var(--green-600); }
.btn.sm { padding: 6px 16px; font-size: 15px; }

/* Affiliate notice */
.aff-notice { font-size: 13px; color: var(--muted); background: var(--warm); padding: 4px 12px; border-radius: 8px; display: inline-block; }

/* Breadcrumbs */
.crumbs { background: var(--green-50); border-bottom: 1px solid var(--green-100); font-size: 15px; color: var(--muted); padding: 12px 0; }
.crumbs a { color: var(--green-600); }
.crumbs a:hover { text-decoration: underline; }
.crumbs .container span { color: var(--green-900); }

/* Product page */
.product-hero { background: linear-gradient(135deg, var(--green-700), var(--green-500)); color: #fff; padding: 44px 0; }
.product-hero .badge { display: inline-block; background: var(--gold-soft); color: var(--green-900); padding: 4px 14px; border-radius: 20px; font-size: 14px; margin-bottom: 14px; font-weight: 500; }
.product-hero h1 { color: #fff; font-size: 34px; line-height: 1.35; margin-bottom: 8px; }
.product-hero .rating { color: var(--gold-soft); font-size: 16px; margin-bottom: 10px; }
.product-grid { display: grid; grid-template-columns: 360px 1fr; gap: 36px; align-items: center; }
.product-img { border-radius: 16px; overflow: hidden; box-shadow: 0 8px 26px rgba(0,0,0,.25); background: var(--white); }
.product-img img { width: 100%; height: 360px; object-fit: cover; }
.product-info .price.big { color: #fff; font-size: 28px; font-weight: 700; margin: 4px 0 12px; }
.product-points { list-style: none; padding: 0; margin: 0 0 18px; color: #eaf5ee; }
.product-points li { padding-left: 24px; position: relative; margin-bottom: 6px; font-size: 17px; }
.product-points li::before { content: '\2713'; position: absolute; left: 0; color: var(--gold-soft); font-weight: 700; }
.product-hero .btn { background: var(--gold); font-size: 17px; }
.product-hero .btn:hover { background: #d9a31a; }
.product-hero .aff-notice { background: rgba(0,0,0,.18); color: #eaf5ee; }

.rating { color: var(--gold); }
.price { font-weight: 700; color: var(--green-700); }
.price s { color: var(--muted); font-weight: 400; margin-right: 6px; }
.price .note { display: block; font-size: 14px; font-weight: 400; color: var(--muted); }

.lede { font-size: 19px; line-height: 1.9; }

.inline-aff { color: var(--green-700); font-weight: 500; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 3px; }
.inline-aff:hover { color: var(--green-500); }

/* Editorial figure (embedded product image inside article) */
.article figure { margin: 26px auto; max-width: 640px; text-align: center; background: var(--white); border: 1px solid var(--green-100); border-radius: 14px; padding: 12px; box-shadow: 0 4px 14px rgba(26,60,46,.08); }
.article figure img { border-radius: 10px; width: 100%; }
.article figure a:hover img { opacity: .94; }
.article figcaption { font-size: 14px; color: var(--muted); line-height: 1.6; margin-top: 8px; }
.article figcaption a { color: var(--green-600); font-weight: 500; }
.article figure.float-left { margin: 6px 24px 18px 0; float: left; width: 320px; }
.article figure.float-right { margin: 6px 0 18px 24px; float: right; width: 320px; }

/* Article pages */
.breadcrumb { font-size: 15px; color: var(--muted); padding: 18px 0 0; }
.breadcrumb a { color: var(--green-600); }
.article { max-width: 800px; margin: 0 auto; }
.article-img { border-radius: 14px; margin: 26px 0 8px; box-shadow: 0 6px 20px rgba(26,60,46,.12); }
.img-caption { font-size: 14px; color: var(--muted); text-align: center; margin-bottom: 20px; }
.article h1 { font-size: 34px; line-height: 1.35; margin: 10px 0 8px; }
.article h2 { font-size: 25px; margin: 38px 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--green-100); }
.article h3 { font-size: 21px; margin: 28px 0 10px; }
.article p { margin-bottom: 16px; }
.article ul, .article ol { margin-bottom: 16px; }
.article li { margin-bottom: 6px; }
.article strong { color: var(--green-900); }

.highlight-box { background: var(--green-50); border: 1px solid var(--green-100); border-radius: 12px; padding: 18px 22px; margin: 20px 0; }
.warning-box { background: #fdf0ef; border: 1px solid #f5c6c2; border-radius: 12px; padding: 18px 22px; margin: 20px 0; }
.warning-box strong { color: var(--red); }

/* Product mention / CTA */
.product-mention { background: var(--white); border: 2px solid var(--green-100); border-radius: 14px; padding: 20px; margin: 26px 0; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.product-mention img { width: 120px; height: 120px; object-fit: cover; border-radius: 12px; }
.product-mention .pm-info { flex: 1; min-width: 220px; }
.product-mention h3 { margin: 0 0 4px; font-size: 19px; }
.product-mention .price { color: var(--green-700); font-weight: 600; }
.product-mention .btn { margin-top: 8px; }

/* Compare table */
.compare-table-wrapper { overflow-x: auto; margin: 22px 0; border-radius: 12px; border: 1px solid var(--green-100); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 560px; background: var(--white); }
.compare-table th, .compare-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--green-100); font-size: 16px; line-height: 1.7; }
.compare-table th { background: var(--green-700); color: #fff; }
.compare-table tr:nth-child(even) { background: var(--green-50); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .best { color: var(--green-700); font-weight: 700; }

/* FAQ */
.faq-section { margin: 36px 0; }
.faq-item { background: var(--white); border: 1px solid var(--green-100); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.faq-item summary { padding: 16px 20px; cursor: pointer; font-weight: 500; color: var(--green-900); list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '\25BC'; font-size: 12px; color: var(--green-500); }
.faq-item[open] summary::after { content: '\25B2'; }
.faq-item p { padding: 0 20px 16px; margin: 0; }

/* CTA section */
.cta-section { text-align: center; background: linear-gradient(135deg, var(--green-700), var(--green-500)); color: #fff; padding: 42px 24px; border-radius: 16px; margin: 40px 0; }
.cta-section h2 { color: #fff; margin-bottom: 8px; }
.cta-section p { opacity: .95; max-width: 640px; margin: 0 auto 18px; }
.cta-section .btn { background: var(--gold); font-size: 17px; }
.cta-section .btn:hover { background: #d9a31a; }

/* Related posts */
.related-posts { margin: 40px 0; }
.related-list { list-style: none; padding: 0; }
.related-list li { background: var(--white); border: 1px solid var(--green-100); border-radius: 10px; padding: 12px 18px; margin-bottom: 8px; }
.related-list a { color: var(--green-700); }

/* Footer */
.site-footer { background: var(--green-900); color: #cfe3d8; padding: 44px 0 20px; margin-top: 50px; }
.site-footer h4 { color: #fff; margin-bottom: 12px; font-size: 17px; }
.site-footer a { color: #cfe3d8; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 28px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 30px; padding-top: 16px; text-align: center; font-size: 14px; }
.disclaimer { font-size: 13px; line-height: 1.7; color: #9fbab1; margin-top: 14px; }

/* Mobile */
@media (max-width: 768px) {
  body { font-size: 17px; }
  .main-nav { width: 100%; justify-content: center; }
  .main-nav a { font-size: 14px; padding: 7px 14px; }
  .hero { padding: 36px 0; }
  .hero h1 { font-size: 28px; }
  .section { padding: 36px 0; }
  .section-header h2 { font-size: 24px; }
  .article h1 { font-size: 27px; }
  .article h2 { font-size: 21px; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
  .product-mention img { width: 90px; height: 90px; }
  .site-header .container { gap: 10px; }
  .logo { font-size: 22px; }
  .product-grid { grid-template-columns: 1fr; }
  .crumbs .container { font-size: 14px; }
}

/* Category quick-nav chips */
.cat-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 30px; }
.cat-nav a { display: inline-block; padding: 7px 16px; border-radius: 999px; background: var(--white); border: 1.5px solid var(--green-100); color: var(--green-700); font-size: 15px; font-weight: 500; }
.cat-nav a:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.cat-nav a.active { background: var(--green-600); border-color: var(--green-600); color: #fff; }

/* Full category index grid */
.index-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 10px; }
.index-card { display: flex; align-items: center; gap: 12px; background: var(--white); border: 1px solid var(--green-100); border-radius: 12px; padding: 10px 14px; }
.index-card:hover { border-color: var(--gold); box-shadow: 0 4px 14px rgba(26,60,46,.1); text-decoration: none; }
.index-card img { width: 54px; height: 54px; border-radius: 8px; object-fit: cover; flex-shrink: 0; background: var(--green-50); }
.index-card .ic-body { display: flex; flex-direction: column; min-width: 0; }
.index-card .ic-name { font-size: 15px; font-weight: 600; color: var(--green-900); line-height: 1.5; }
.index-card .ic-price { font-size: 14px; color: var(--gold); font-weight: 600; margin-top: 2px; }
.index-note { font-size: 14px; color: var(--muted); text-align: center; margin-top: 22px; }
@media (max-width: 768px) {
  .index-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .index-card { padding: 8px 10px; }
  .index-card img { width: 46px; height: 46px; }
  .index-card .ic-name { font-size: 14px; }
  .cat-nav a { font-size: 14px; padding: 6px 13px; }
}