:root {
  --kiri-green:   #339933;
  --kiri-light:   #E8F5E8;
  --kiri-dark:    #1f6b1f;
  --kiri-darker:  #0d3d0d;
  --kiri-darkest: #051905;
  --text-primary: #1a1a1a;
  --text-secondary: #555;
  --text-muted:   #888;
  --border:       #e5e7eb;
  --bg-page:      #f8faf8;
  --bg-card:      #fff;
  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:    0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:    0 8px 32px rgba(0,0,0,.10);
  --transition:   .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--kiri-green); text-decoration: none; }
a:hover { text-decoration: underline; }

img { display: block; max-width: 100%; }

/* ─── NAV ─────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav__inner {
  max-width: 1140px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.nav__logo-mark {
  width: 32px;
  height: 32px;
  background: var(--kiri-green);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -.5px;
}

.nav__badge {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
  border-left: 1px solid var(--border);
  padding-left: 10px;
  margin-left: 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav__links a {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.nav__links a:hover {
  background: var(--kiri-light);
  color: var(--kiri-dark);
  text-decoration: none;
}

.nav__btn {
  background: var(--kiri-green);
  color: #fff !important;
  border-radius: var(--radius-sm);
  padding: 7px 16px !important;
  font-weight: 600;
  font-size: 13px !important;
  transition: background var(--transition) !important;
}

.nav__btn:hover {
  background: var(--kiri-dark) !important;
  color: #fff !important;
}

/* ─── HERO ────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--kiri-darker) 0%, var(--kiri-darkest) 100%);
  padding: 72px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(51,153,51,.18) 0%, transparent 70%);
}

.hero__inner { position: relative; max-width: 640px; margin: 0 auto; }

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  margin-bottom: 20px;
}

.hero__eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--kiri-green);
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -.02em;
}

.hero__sub {
  font-size: 17px;
  color: rgba(255,255,255,.65);
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── SEARCH ──────────────────────────────────────────────── */
.search {
  position: relative;
  max-width: 540px;
  margin: 0 auto;
}

.search__input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  font-size: 16px;
  border: none;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-lg);
  outline: none;
  color: var(--text-primary);
  transition: box-shadow var(--transition);
}

.search__input::placeholder { color: var(--text-muted); }

.search__input:focus {
  box-shadow: 0 0 0 3px rgba(51,153,51,.2), var(--shadow-lg);
}

.search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search__results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: none;
  z-index: 50;
  border: 1px solid var(--border);
}

.search__results.is-open { display: block; }

.search__result-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
}

.search__result-item:last-child { border-bottom: none; }
.search__result-item:hover { background: var(--kiri-light); }

.search__result-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--kiri-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--kiri-green);
  font-size: 14px;
}

.search__result-text strong {
  display: block;
  font-size: 14px;
  color: var(--text-primary);
}

.search__result-text span {
  font-size: 12px;
  color: var(--text-muted);
}

.search__no-results {
  padding: 20px 18px;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

/* ─── STATS BAR ───────────────────────────────────────────── */
.stats {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.stats__inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  height: 52px;
  overflow-x: auto;
  scrollbar-width: none;
}

.stats__inner::-webkit-scrollbar { display: none; }

.stats__item {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--text-secondary);
}

.stats__item strong {
  font-weight: 700;
  color: var(--kiri-green);
}

.stats__divider {
  width: 1px;
  height: 18px;
  background: var(--border);
  flex-shrink: 0;
}

/* ─── CONTAINER ───────────────────────────────────────────── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── SECTION TITLES ──────────────────────────────────────── */
.section { padding: 64px 24px; }
.section--sm { padding: 40px 24px; }

.section__header {
  max-width: 1140px;
  margin: 0 auto 36px;
}

.section__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--kiri-green);
  margin-bottom: 8px;
}

.section__title {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text-primary);
}

.section__subtitle {
  margin-top: 8px;
  font-size: 16px;
  color: var(--text-secondary);
}

/* ─── PRODUCT CATEGORIES ──────────────────────────────────── */
.categories { background: var(--bg-page); }

.categories__grid {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(51,153,51,.3);
  transform: translateY(-2px);
}

.category-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: var(--kiri-light);
  flex-shrink: 0;
}

.category-card__body { flex: 1; }

.category-card__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.category-card__desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.category-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.category-card__count {
  font-size: 12px;
  color: var(--text-muted);
}

.category-card__arrow {
  color: var(--kiri-green);
  font-size: 14px;
  transition: transform var(--transition);
}

.category-card:hover .category-card__arrow { transform: translateX(4px); }

/* ─── POPULAR ARTICLES ────────────────────────────────────── */
.popular { background: #fff; border-top: 1px solid var(--border); }

.articles-grid {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.article-card {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: box-shadow var(--transition), border-color var(--transition);
  text-decoration: none !important;
  color: inherit;
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(51,153,51,.3);
  text-decoration: none;
}

.article-card__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--kiri-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--kiri-green);
  font-size: 16px;
}

.article-card__body {}

.article-card__product {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--kiri-green);
  margin-bottom: 4px;
}

.article-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 4px;
}

.article-card:hover .article-card__title { color: var(--kiri-green); }

.article-card__meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-card__meta span { display: flex; align-items: center; gap: 4px; }

/* ─── CONTACT BANNER ──────────────────────────────────────── */
.contact-banner {
  background: linear-gradient(90deg, var(--kiri-darker) 0%, var(--kiri-darkest) 100%);
  padding: 48px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 100% at 50% 50%, rgba(51,153,51,.12) 0%, transparent 70%);
}

.contact-banner__inner {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.contact-banner h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -.02em;
}

.contact-banner p {
  font-size: 16px;
  color: rgba(255,255,255,.65);
  margin-bottom: 28px;
}

.contact-banner__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border: none;
}

.btn--primary {
  background: var(--kiri-green);
  color: #fff;
}

.btn--primary:hover {
  background: var(--kiri-dark);
  color: #fff;
  text-decoration: none;
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.3);
}

.btn--outline:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
  text-decoration: none;
}

/* ─── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: linear-gradient(90deg, var(--kiri-darker) 0%, var(--kiri-darkest) 100%);
  padding: 48px 24px 28px;
  color: rgba(255,255,255,.7);
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer__inner {
  max-width: 1140px;
  margin: 0 auto;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer__brand-name {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.footer__brand-desc {
  font-size: 13px;
  line-height: 1.6;
  max-width: 220px;
}

.footer__col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 16px;
}

.footer__links { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer__links a {
  font-size: 13px;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: #fff;
  text-decoration: none;
}

.footer__bottom {
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 12px;
  color: rgba(255,255,255,.35);
}

.footer__legal {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer__legal a {
  font-size: 12px;
  color: rgba(255,255,255,.35);
  transition: color var(--transition);
}

.footer__legal a:hover {
  color: rgba(255,255,255,.7);
  text-decoration: none;
}

/* ─── BREADCRUMB ──────────────────────────────────────────── */
.breadcrumb {
  padding: 16px 24px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.breadcrumb__inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.breadcrumb__inner a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.breadcrumb__inner a:hover { color: var(--kiri-green); text-decoration: none; }
.breadcrumb__sep { color: var(--border); }
.breadcrumb__current { color: var(--text-secondary); }

/* ─── ARTICLE PAGE ────────────────────────────────────────── */
.article-layout {
  max-width: 1140px;
  margin: 40px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: flex-start;
}

.sidebar {
  position: sticky;
  top: 80px;
}

.sidebar__title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.sidebar__nav { list-style: none; display: flex; flex-direction: column; gap: 2px; }

.sidebar__nav a {
  display: block;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}

.sidebar__nav a:hover, .sidebar__nav a.is-active {
  background: var(--kiri-light);
  color: var(--kiri-dark);
  text-decoration: none;
}

.sidebar__nav a.is-active { font-weight: 600; }

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 40px 48px;
}

.article-content h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

.article-content .article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.article-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
}

.article-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 10px;
}

.article-content p { margin-bottom: 16px; color: var(--text-secondary); font-size: 15px; line-height: 1.7; }

.article-content ul, .article-content ol {
  margin: 0 0 16px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.article-content li { margin-bottom: 6px; }

.article-content .tip {
  background: var(--kiri-light);
  border-left: 3px solid var(--kiri-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  font-size: 14px;
  color: var(--kiri-dark);
  margin: 20px 0;
}

.article-content .tip strong { color: var(--kiri-green); }

.article-content code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: ui-monospace, monospace;
  color: var(--kiri-dark);
}

.article-feedback {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.article-feedback p { font-size: 15px; color: var(--text-secondary); margin-bottom: 16px; }

.feedback-btns { display: flex; justify-content: center; gap: 12px; }

.feedback-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: #fff;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.feedback-btn:hover { border-color: var(--kiri-green); color: var(--kiri-green); }

/* ─── CATEGORY PAGE ───────────────────────────────────────── */
.category-hero {
  background: linear-gradient(135deg, var(--kiri-darker) 0%, var(--kiri-darkest) 100%);
  padding: 48px 24px;
  position: relative;
  overflow: hidden;
}

.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 40% 120% at 0% 50%, rgba(51,153,51,.15) 0%, transparent 70%);
}

.category-hero__inner {
  position: relative;
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.category-hero__icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  flex-shrink: 0;
}

.category-hero h1 {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}

.category-hero p {
  font-size: 15px;
  color: rgba(255,255,255,.65);
}

/* ─── UTILITIES ───────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  background: var(--kiri-light);
  color: var(--kiri-dark);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0,0,0,0);
  overflow: hidden;
}

/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

@media (max-width: 600px) {
  .nav__links { display: none; }
  .footer__top { grid-template-columns: 1fr; gap: 28px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .article-content { padding: 24px 20px; }
  .contact-banner__actions { flex-direction: column; align-items: stretch; }
  .hero { padding: 48px 20px 56px; }
}