/* roulang page: index */
:root {
  --primary: #1b5e3f;
  --primary-light: #4a7c5f;
  --primary-dark: #123d29;
  --accent: #c9a063;
  --accent-light: #e8d5b5;
  --bg: #f7f5f0;
  --bg-white: #ffffff;
  --bg-light: #f0efe9;
  --text: #2a2a28;
  --text-light: #6b6a65;
  --text-muted: #9a9891;
  --border: #e4e2da;
  --border-dark: #d0cfc5;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow: 0 8px 30px rgba(0,0,0,0.07);
  --shadow-lg: 0 16px 44px rgba(0,0,0,0.10);
  --container: 1200px;
  --gap: 32px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; background: var(--accent-light); color: var(--primary-dark);
  font-size: 13px; font-weight: 600; padding: 4px 16px; border-radius: 30px; letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-title { font-size: 34px; font-weight: 800; color: var(--text); line-height: 1.35; margin-bottom: 14px; letter-spacing: -0.5px; }
.section-desc { font-size: 15px; color: var(--text-light); max-width: 640px; margin: 0 auto 32px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 40px; font-size: 15px; font-weight: 600;
  transition: var(--transition); border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,94,63,0.25); }
.btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: #b8924f; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,160,99,0.3); }
.btn-lg { padding: 14px 38px; font-size: 16px; }
.card { background: var(--bg-white); border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: var(--border-dark); }

/* header */
.header {
  background: var(--bg-white); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 4px rgba(0,0,0,0.02);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--text); }
.logo i { color: var(--primary); font-size: 22px; }
.logo:hover { color: var(--primary); }
.logo span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 300px; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { padding: 8px 18px; border-radius: 30px; font-size: 15px; color: var(--text-light); font-weight: 500; }
.main-nav a:hover { color: var(--primary); background: var(--bg-light); }
.main-nav a.active { color: var(--primary); background: var(--accent-light); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search {
  display: flex; align-items: center; background: var(--bg-light); border-radius: 30px;
  padding: 0 16px; height: 40px; border: 1px solid transparent; transition: var(--transition);
}
.header-search:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(27,94,63,0.1); }
.header-search i { color: var(--text-muted); font-size: 14px; }
.header-search input { border: none; background: none; outline: none; padding: 0 10px; font-size: 14px; width: 160px; color: var(--text); }
.header-search input::placeholder { color: var(--text-muted); }
.header-cta { padding: 8px 22px; border-radius: 30px; background: var(--primary); color: #fff; font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; border: none; cursor: pointer; transition: var(--transition); }
.header-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(27,94,63,0.25); }
.mobile-toggle { display: none; }

/* hero */
.hero {
  position: relative; background: linear-gradient(135deg, #0d2b1d 0%, #1b5e3f 60%, #2b7956 100%);
  overflow: hidden; padding: 92px 0 100px;
}
.hero::before {
  content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover; background-position: center; opacity: 0.25;
}
.hero::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(13,43,29,0.1), rgba(13,43,29,0.55));
}
.hero .container { position: relative; z-index: 2; }
.hero-inner { display: flex; align-items: center; gap: 48px; }
.hero-content { flex: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px); color: var(--accent-light); font-size: 13px; font-weight: 600;
  padding: 6px 18px; border-radius: 30px; margin-bottom: 28px; border: 1px solid rgba(255,255,255,0.2);
}
.hero-title { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 20px; letter-spacing: -1px; }
.hero-title em { font-style: normal; color: var(--accent); }
.hero-sub { font-size: 17px; color: rgba(255,255,255,0.85); max-width: 560px; margin-bottom: 36px; line-height: 1.85; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-metrics { display: flex; gap: 40px; border-top: 1px solid rgba(255,255,255,0.18); padding-top: 28px; }
.metric { text-align: left; }
.metric-num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
.metric-label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 4px; letter-spacing: 1px; }

.hero-step {
  width: 420px; background: rgba(255,255,255,0.96); backdrop-filter: blur(16px);
  border-radius: var(--radius-lg); padding: 36px 32px; box-shadow: 0 24px 60px rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.3);
}
.hero-step-title { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
.hero-step-title i { color: var(--primary); }
.step-list { display: flex; flex-direction: column; gap: 20px; }
.step-item { display: flex; gap: 14px; align-items: flex-start; }
.step-num {
  width: 34px; height: 34px; border-radius: 50%; background: var(--accent-light); color: var(--primary-dark);
  font-weight: 700; font-size: 14px; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.step-item-text { flex: 1; }
.step-item-text h4 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.step-item-text p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.hero-tip {
  margin-top: 24px; background: var(--bg-light); border-radius: 10px; padding: 12px 16px;
  font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 8px;
}
.hero-tip i { color: var(--accent); }

/* feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { padding: 40px 30px; text-align: center; }
.feature-icon {
  width: 76px; height: 76px; border-radius: 24px; margin: 0 auto 22px;
  background: linear-gradient(135deg, var(--accent-light), #f0e6d2); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center; font-size: 28px;
}
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* tea stage */
.stage { background: var(--bg-light); }
.stage-inner { display: flex; align-items: center; gap: 48px; }
.stage-visual { flex: 1; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.stage-visual img { width: 100%; height: 420px; object-fit: cover; }
.stage-content { flex: 1; }
.stage-content .section-tag { margin-bottom: 10px; }
.stage-content h2 { font-size: 30px; font-weight: 800; line-height: 1.35; margin-bottom: 20px; color: var(--text); }
.stage-posts { margin-top: 28px; }
.stage-mini-list { display: flex; flex-direction: column; gap: 0; }
.stage-mini-item {
  display: flex; align-items: center; gap: 18px; padding: 14px 0;
  border-bottom: 1px solid var(--border); transition: var(--transition);
}
.stage-mini-item:last-child { border-bottom: none; }
.stage-mini-item:hover { padding-left: 8px; }
.stage-mini-thumb { width: 62px; height: 62px; border-radius: 12px; object-fit: cover; flex-shrink: 0; }
.stage-mini-info h3 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.stage-mini-info p { font-size: 13px; color: var(--text-muted); }

/* how steps */
.how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; counter-reset: step; }
.how-step { padding: 36px 30px; text-align: center; position: relative; }
.how-step::after {
  content: ''; position: absolute; top: 60px; right: -20px; width: 40px; height: 1px;
  border-top: 2px dashed var(--border-dark); display: none;
}
.how-step:not(:last-child)::after { display: block; }
.how-num {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 20px;
  background: var(--primary); color: #fff; font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 20px rgba(27,94,63,0.2);
}
.how-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.how-step p { font-size: 14px; color: var(--text-light); }

/* comparison table */
.compare-table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); background: #fff; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.compare-table th, .compare-table td { padding: 18px 22px; text-align: center; border-bottom: 1px solid var(--border); font-size: 14px; }
.compare-table th { background: var(--bg-light); font-weight: 600; color: var(--text); }
.compare-table th:first-child { text-align: left; }
.compare-table td:first-child { text-align: left; font-weight: 500; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-row-highlight { background: rgba(27,94,63,0.04); }
.compare-tag {
  display: inline-block; background: var(--accent); color: var(--primary-dark); font-size: 12px;
  font-weight: 700; padding: 2px 12px; border-radius: 20px;
}
.compare-check { color: var(--primary); font-size: 16px; }
.compare-minus { color: var(--text-muted); font-size: 14px; }

/* reviews */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.review-card { padding: 30px; position: relative; }
.review-card::before {
  content: '\201C'; font-size: 72px; position: absolute; top: 12px; left: 22px;
  color: var(--accent-light); font-family: Georgia, serif; line-height: 1;
}
.review-stars { color: var(--accent); font-size: 14px; margin-bottom: 16px; display: flex; gap: 3px; }
.review-text { font-size: 14px; color: var(--text); line-height: 1.85; margin-bottom: 20px; }
.review-author { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--border); padding-top: 18px; }
.review-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; }
.review-name { font-size: 14px; font-weight: 600; color: var(--text); }
.review-position { font-size: 12px; color: var(--text-muted); }

/* info section */
.info-area { background: var(--bg-light); }
.info-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 36px; align-items: start; }
.info-list { display: flex; flex-direction: column; gap: 0; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 10px 0; }
.info-list-item {
  display: flex; align-items: center; gap: 16px; padding: 16px 26px;
  border-bottom: 1px solid var(--border); transition: var(--transition);
}
.info-list-item:last-child { border-bottom: none; }
.info-list-item:hover { background: var(--bg-light); }
.info-date { font-size: 12px; color: var(--text-muted); background: var(--bg); padding: 3px 10px; border-radius: 20px; flex-shrink: 0; }
.info-title { font-size: 15px; color: var(--text); font-weight: 500; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.info-title:hover { color: var(--primary); }
.info-arrow { color: var(--text-muted); font-size: 14px; }
.info-side { display: flex; flex-direction: column; gap: 24px; }
.info-side-card { background: #fff; border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.info-side-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 14px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.info-side-card h3 i { color: var(--primary); }
.trend-list { display: flex; flex-direction: column; gap: 12px; }
.trend-item { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-light); }
.trend-rank {
  width: 24px; height: 24px; border-radius: 6px; background: var(--bg-light); color: var(--text);
  font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.trend-item:nth-child(1) .trend-rank { background: var(--accent); color: var(--primary-dark); }
.trend-item:nth-child(2) .trend-rank { background: var(--accent); color: var(--primary-dark); }
.trend-item:nth-child(3) .trend-rank { background: var(--accent); color: var(--primary-dark); }
.trend-hot { margin-left: auto; font-size: 12px; color: var(--accent); }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--border);
  margin-bottom: 16px; overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-dark); }
.faq-q { padding: 22px 30px; font-size: 15px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-q i { color: var(--primary); font-size: 14px; transition: var(--transition); flex-shrink: 0; }
.faq-a { padding: 0 30px 24px; font-size: 14px; color: var(--text-light); line-height: 1.85; display: none; }
.faq-item.active .faq-a { display: block; }
.faq-item.active .faq-q i { transform: rotate(180deg); }

/* CTA */
.cta-block { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); border-radius: var(--radius-lg); padding: 60px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-block::after { content: ''; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,0.06); }
.cta-block::before { content: ''; position: absolute; bottom: -40px; left: 10px; width: 100px; height: 100px; border-radius: 50%; background: rgba(255,255,255,0.04); }
.cta-block h2 { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-block p { color: rgba(255,255,255,0.8); max-width: 540px; margin: 0 auto 32px; font-size: 15px; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 2; }

/* download */
.download-section { background: var(--bg); }
.download-inner { display: flex; align-items: center; gap: 48px; }
.download-content { flex: 1; }
.download-content h2 { font-size: 30px; font-weight: 800; line-height: 1.35; margin-bottom: 16px; }
.download-content p { color: var(--text-light); margin-bottom: 30px; font-size: 15px; }
.download-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.download-btn {
  display: inline-flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; padding: 14px 24px; transition: var(--transition);
}
.download-btn:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--primary); }
.download-btn i { font-size: 24px; color: var(--primary); }
.download-btn-text { font-size: 13px; color: var(--text-muted); }
.download-btn-text span { display: block; font-size: 15px; font-weight: 700; color: var(--text); }
.download-visual { flex: 1; display: flex; justify-content: center; }
.download-card {
  background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-lg);
  text-align: center; width: 320px; border: 1px solid var(--border);
}
.download-qr { width: 180px; height: 180px; margin: 0 auto 22px; border-radius: 18px; background: var(--bg-light); display: flex; align-items: center; justify-content: center; border: 1px dashed var(--border-dark); }
.download-qr i { font-size: 72px; color: var(--text-muted); }
.download-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.download-card p { font-size: 13px; color: var(--text-muted); }

/* footer */
.footer { background: #15251c; color: rgba(255,255,255,0.6); padding: 60px 0 0; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 380px; }
.footer-col h3 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { padding: 24px 0; display: flex; align-items: center; justify-content: space-between; font-size: 13px; flex-wrap: wrap; gap: 12px; }

/* float bottom CTA */
.float-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border); padding: 14px 0;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.05); transform: translateY(100%);
  transition: transform 0.4s ease;
}
.float-cta.show { transform: translateY(0); }
.float-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.float-cta-text { font-size: 14px; color: var(--text); font-weight: 500; }
.float-cta-text small { display: block; font-size: 12px; color: var(--text-muted); font-weight: 400; }

body { padding-bottom: 88px; }

/* responsive */
@media (max-width: 1024px) {
  .hero-inner { flex-direction: column; }
  .hero-step { width: 100%; max-width: 100%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stage-inner { flex-direction: column; }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .info-layout { grid-template-columns: 1fr; }
  .download-inner { flex-direction: column; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .how-steps { grid-template-columns: 1fr; gap: 24px; }
  .how-step::after { display: none !important; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
  .header-search { display: none; }
  .main-nav { display: none; }
  .mobile-toggle {
    display: flex; align-items: center; justify-content: center; width: 42px; height: 42px;
    border-radius: 12px; background: var(--bg-light); color: var(--text); font-size: 18px;
  }
  .header-cta { padding: 8px 16px; font-size: 13px; }
  .mobile-menu {
    display: none; position: fixed; top: 72px; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--border); box-shadow: var(--shadow); padding: 20px 24px; z-index: 99;
  }
  .mobile-menu.open { display: block; }
  .mobile-menu a { display: block; padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 15px; font-weight: 500; color: var(--text); }
  .mobile-menu a:last-child { border-bottom: none; }
  .mobile-menu a.active { color: var(--primary); }
  .hero { padding: 60px 0 72px; }
  .hero-title { font-size: 32px; }
  .hero-metrics { flex-wrap: wrap; gap: 24px; }
  .feature-grid { grid-template-columns: 1fr; gap: 20px; }
  .review-grid { grid-template-columns: 1fr; }
  .float-cta-text { display: none; }
  .float-cta-inner { justify-content: center; }
  .info-list-item { flex-wrap: wrap; padding: 14px 18px; }
  .info-title { white-space: normal; }
  .cta-block { padding: 40px 24px; }
  .cta-block h2 { font-size: 24px; }
  .body { padding-bottom: 76px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 28px; }
  .hero-ctas { flex-direction: column; }
  .btn { width: 100%; }
  .section-title { font-size: 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .header-cta span { display: none; }
  .header-cta i { margin: 0; }
  .step-num { width: 30px; height: 30px; font-size: 13px; }
  .metric-num { font-size: 26px; }
}

/* roulang page: article */
:root {
  --primary: #0e6b5c;
  --primary-dark: #0a4f44;
  --primary-light: #d7ece6;
  --accent: #c9a86c;
  --accent-dark: #b08d4f;
  --accent-light: #f7efdf;
  --bg: #f7faf8;
  --bg-alt: #edf3f0;
  --white: #ffffff;
  --text: #1f2937;
  --text-light: #6b7a76;
  --border: #dde8e3;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.05);
  --shadow-md: 0 10px 30px rgba(0,0,0,.09);
  --shadow-hover: 0 18px 40px rgba(0,0,0,.14);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --space: 80px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.8; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: all .25s ease; }
img { max-width: 100%; display: block; }
ul, ol { list-style-position: inside; }
.container { width: min(1180px, 92%); margin: 0 auto; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border: none; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; text-align: center;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  line-height: 1.4;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(14,107,92,.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,107,92,.4); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(201,168,108,.3); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,108,.4); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 14px 38px; font-size: 16px; }
.btn-block { width: 100%; }

.section-icon { font-size: 30px; color: var(--primary); margin-bottom: 8px; }
.section-label { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 999px; margin-bottom: 12px; letter-spacing: .5px; }
.section-title { font-size: 32px; font-weight: 700; line-height: 1.35; letter-spacing: -.5px; }
.section-desc { color: var(--text-light); font-size: 16px; max-width: 680px; margin-top: 8px; }
.section-head { margin-bottom: 44px; position: relative; z-index: 1; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ======= Header / Nav ======= */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,.03);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo {
  display: flex; align-items: center; gap: 10px; font-weight: 700;
  color: var(--text); font-size: 15px; letter-spacing: -.2px; white-space: nowrap; flex-shrink: 1; min-width: 0;
}
.logo i { color: var(--primary); font-size: 22px; }
.logo span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 360px; }
.logo:hover { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 18px; border-radius: 999px; font-size: 15px; font-weight: 500;
  color: var(--text-light); transition: all .25s;
}
.main-nav a:hover { background: var(--bg-alt); color: var(--primary); }
.main-nav a.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 4px 12px rgba(14,107,92,.25); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex; align-items: center; background: var(--bg-alt); border-radius: 999px;
  padding: 8px 16px; border: 1px solid transparent; transition: all .3s;
  width: 200px;
}
.search-box input { border: none; background: transparent; outline: none; font-size: 14px; width: 100%; }
.search-box i { color: var(--text-light); font-size: 14px; margin-right: 8px; }
.search-box:focus-within { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(14,107,92,.1); }
.header-cta { padding: 10px 22px; font-size: 14px; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--text); cursor: pointer; }

/* ======= Article Hero ======= */
.article-hero {
  position: relative; padding: 90px 0 80px; background-size: cover; background-position: center;
  background-image: linear-gradient(rgba(10,40,35,.85), rgba(10,40,35,.85)), url('/assets/images/backpic/back-1.jpg');
  color: #fff; text-align: center;
}
.article-hero .breadcrumb {
  display: flex; justify-content: center; align-items: center; gap: 8px; margin-bottom: 18px;
  font-size: 13px; color: rgba(255,255,255,.65);
}
.article-hero .breadcrumb a { color: rgba(255,255,255,.8); }
.article-hero .breadcrumb a:hover { color: var(--accent); }
.article-hero .breadcrumb i { font-size: 10px; color: rgba(255,255,255,.4); }
.article-hero h1 {
  font-size: 38px; font-weight: 800; line-height: 1.3; letter-spacing: -1px;
  max-width: 860px; margin: 0 auto 18px;
}
.article-hero .article-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 18px;
  font-size: 14px; color: rgba(255,255,255,.7);
}
.article-hero .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-hero .article-meta i { font-size: 13px; color: var(--accent); }

/* ======= Article Body ======= */
.article-section { padding: var(--space) 0; background: var(--bg); }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 360px; gap: 50px; align-items: start; }
.article-main-col { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
.article-content-wrap { padding: 48px 52px; }
.article-content { font-size: 16px; line-height: 2; }
.article-content h2 { font-size: 24px; margin: 36px 0 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary-light); color: var(--text); }
.article-content h3 { font-size: 20px; margin: 28px 0 12px; color: var(--text); }
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { margin-bottom: 18px; padding-left: 10px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--accent); background: var(--accent-light);
  padding: 16px 24px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0; color: #5a4a2e; font-style: italic;
}
.article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-md); }
.article-content a { text-decoration: underline; text-underline-offset: 4px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 12px 14px; text-align: left; }
.article-content th { background: var(--bg-alt); font-weight: 600; }

.article-tags {
  display: flex; flex-wrap: wrap; gap: 10px; padding: 24px 52px;
  border-top: 1px solid var(--border); background: #fafcfb;
}
.tag-item {
  background: var(--bg-alt); color: var(--text-light); padding: 6px 14px;
  border-radius: 999px; font-size: 13px; font-weight: 500;
}
.tag-item:hover { background: var(--primary-light); color: var(--primary); }

.not-found { padding: 80px 40px; text-align: center; }
.not-found i { font-size: 52px; color: var(--border); margin-bottom: 20px; }
.not-found h2 { font-size: 24px; margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 24px; }

/* ======= Sidebar ======= */
.article-side { display: flex; flex-direction: column; gap: 26px; position: sticky; top: 100px; }
.side-card {
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
  padding: 30px; border: 1px solid var(--border);
}
.side-card-img { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 18px; }
.side-card-img img { width: 100%; height: 150px; object-fit: cover; transition: transform .5s ease; }
.side-card-img:hover img { transform: scale(1.05); }
.side-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.side-card h3 i { color: var(--primary); font-size: 16px; }
.side-card p { font-size: 14px; color: var(--text-light); margin-bottom: 14px; }
.side-card .price-row { display: flex; align-items: baseline; gap: 6px; margin-bottom: 16px; }
.side-card .price { font-size: 22px; font-weight: 700; color: var(--primary); }
.side-card .price-unit { font-size: 13px; color: var(--text-light); }

.side-rating { display: flex; align-items: center; gap: 6px; margin-bottom: 14px; }
.side-rating .stars { color: var(--accent); font-size: 14px; }
.side-rating .score { font-size: 15px; font-weight: 700; }

.side-link-list { list-style: none; }
.side-link-list li { border-bottom: 1px solid var(--border); }
.side-link-list li:last-child { border-bottom: none; }
.side-link-list a { display: flex; align-items: center; gap: 10px; padding: 12px 4px; font-size: 14px; color: var(--text); }
.side-link-list a:hover { color: var(--primary); padding-left: 10px; }
.side-link-list i { font-size: 13px; color: var(--accent); width: 18px; text-align: center; }

.side-contact { text-align: center; }
.side-contact .qr-wrap {
  width: 110px; height: 110px; margin: 0 auto 16px; border-radius: var(--radius-md);
  background: var(--bg-alt); display: flex; align-items: center; justify-content: center;
  font-size: 56px; color: var(--primary); border: 2px dashed var(--primary-light);
}
.side-contact .btn { margin-top: 4px; }

/* ======= Related ======= */
.related-section { padding: var(--space) 0; background: var(--bg-alt); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: all .35s ease;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card-img { position: relative; height: 200px; overflow: hidden; }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.related-card:hover .related-card-img img { transform: scale(1.08); }
.related-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.35), transparent 50%); }
.related-card-img .badge {
  position: absolute; left: 14px; top: 14px; z-index: 2;
  background: rgba(255,255,255,.92); color: var(--primary); padding: 4px 12px;
  border-radius: 999px; font-size: 12px; font-weight: 600;
}
.related-card-body { padding: 26px; }
.related-card-body h3 { font-size: 17px; font-weight: 600; line-height: 1.5; margin-bottom: 10px; }
.related-card-body h3 a { color: var(--text); }
.related-card-body h3 a:hover { color: var(--primary); }
.related-card-body p { font-size: 14px; color: var(--text-light); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-light); }
.related-card-meta i { margin-right: 4px; }

/* ======= FAQ ======= */
.faq-section { padding: var(--space) 0; background: var(--bg); }
.faq-list { max-width: 840px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; border: 1px solid var(--border); }
.faq-question { width: 100%; text-align: left; padding: 22px 28px; font-size: 16px; font-weight: 600; color: var(--text); cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; background: none; border: none; font-family: var(--font); transition: all .3s; }
.faq-question i { color: var(--primary); transition: transform .3s; font-size: 14px; flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; padding: 0 28px; }
.faq-item.active .faq-answer { max-height: 400px; padding: 0 28px 24px; }
.faq-answer p { color: var(--text-light); font-size: 15px; line-height: 1.9; }

/* ======= CTA ======= */
.cta-section {
  padding: var(--space) 0; background-size: cover; background-position: center;
  background-image: linear-gradient(rgba(10,40,35,.88), rgba(10,40,35,.88)), url('/assets/images/backpic/back-2.jpg');
  color: #fff; text-align: center;
}
.cta-section .section-label { background: rgba(255,255,255,.15); color: var(--accent); }
.cta-section .section-title { color: #fff; font-size: 36px; margin-bottom: 12px; }
.cta-section .section-desc { color: rgba(255,255,255,.75); margin: 0 auto 32px; }
.cta-count { display: flex; justify-content: center; gap: 28px; margin-bottom: 36px; flex-wrap: wrap; }
.cta-count-item { text-align: center; padding: 16px 28px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius-lg); backdrop-filter: blur(6px); }
.cta-count-item .num { font-size: 32px; font-weight: 800; color: var(--accent); display: block; line-height: 1.2; }
.cta-count-item .label-text { font-size: 13px; color: rgba(255,255,255,.7); }
.cta-btns { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }

/* ======= Footer ======= */
.footer { background: #0d1f1c; color: rgba(255,255,255,.75); padding: 64px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr .8fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand p { font-size: 14px; line-height: 1.9; margin-top: 14px; color: rgba(255,255,255,.55); }
.footer .logo { color: #fff; font-size: 16px; }
.footer .logo i { color: var(--accent); }
.footer-col h3 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,.65); font-size: 14px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 28px 0; font-size: 13px; color: rgba(255,255,255,.45); flex-wrap: wrap; gap: 12px; }

/* ======= Responsive ======= */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .side-card { flex: 1; min-width: 280px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .header-inner { gap: 12px; }
  .search-box { display: none; }
  .main-nav { position: fixed; top: 72px; left: -100%; width: 75%; max-width: 320px; height: calc(100vh - 72px); background: #fff; flex-direction: column; align-items: flex-start; padding: 30px 24px; gap: 8px; box-shadow: 4px 0 24px rgba(0,0,0,.08); transition: left .35s ease; z-index: 99; }
  .main-nav.open { left: 0; }
  .main-nav a { width: 100%; font-size: 17px; padding: 14px 16px; }
  .nav-toggle { display: block; }
  .header-cta { padding: 9px 16px; font-size: 13px; }
  .article-hero { padding: 60px 0 55px; }
  .article-hero h1 { font-size: 30px; }
  .article-content-wrap { padding: 34px 26px; }
  .article-tags { padding: 18px 26px; }
  .section-title { font-size: 27px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 700px) {
  :root { --space: 56px; }
  .header-inner { height: 62px; }
  .main-nav { top: 62px; }
  .logo span { max-width: 180px; }
  .article-hero { padding: 46px 0 42px; }
  .article-hero h1 { font-size: 24px; }
  .article-hero .article-meta { gap: 10px; flex-direction: column; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-section .section-title { font-size: 26px; }
  .cta-count { gap: 14px; }
  .cta-count-item { padding: 12px 18px; }
  .cta-count-item .num { font-size: 24px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; max-width: 300px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .article-side { flex-direction: column; }
  .side-card { width: 100%; min-width: 0; }
}

/* roulang page: category1 */
:root {
  --primary: #0d766e;
  --primary-light: #128f86;
  --primary-soft: #e5f3f1;
  --accent: #d97706;
  --accent-soft: #fdf1df;
  --ink: #172e33;
  --muted: #5c6d73;
  --line: #e4ebed;
  --bg: #ffffff;
  --bg-soft: #f6f9f9;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --shadow: 0 8px 28px rgba(13, 52, 58, 0.08);
  --shadow-lg: 0 16px 42px rgba(13, 52, 58, 0.13);
  --max-w: 1200px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

input {
  font-family: inherit;
}

ul {
  list-style: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(13, 118, 110, 0.32);
  outline-offset: 2px;
  border-radius: 6px;
}

section[id] {
  scroll-margin-top: 84px;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  cursor: pointer;
  transition: all .22s ease;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(13, 118, 110, 0.22);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(13, 118, 110, 0.28);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(13, 118, 110, 0.36);
  color: var(--primary);
}

.btn-ghost:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.btn-light:hover {
  background: #eefaf7;
  transform: translateY(-2px);
}

.btn-more {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  background: transparent;
}

.btn-more:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  min-height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .3px;
  color: var(--ink);
  white-space: nowrap;
}

.logo i {
  color: var(--primary);
  font-size: 22px;
}

.logo-short {
  display: none;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  transition: background .2s, color .2s;
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.main-nav a.active {
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 700;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  width: 200px;
}

.search-box i {
  color: var(--muted);
  font-size: 14px;
}

.search-box input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--ink);
}

.search-box input::placeholder {
  color: #93a5ac;
}

.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transition: all .2s ease;
  box-shadow: 0 4px 14px rgba(13, 118, 110, 0.2);
}

.btn-header:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(13, 118, 110, 0.26);
}

/* ===== Hero ===== */
.cat-hero {
  position: relative;
  padding: 74px 0 70px;
  background: url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(246, 251, 250, 0.98) 0%, rgba(246, 251, 250, 0.92) 46%, rgba(246, 251, 250, 0.72) 100%);
}

.cat-hero .container {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 52px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(13, 118, 110, 0.10);
  border: 1px solid rgba(13, 118, 110, 0.2);
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  letter-spacing: .5px;
}

.hero-title {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--ink);
  margin-bottom: 14px;
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-sub {
  font-size: 16px;
  line-height: 1.8;
  color: #465960;
  max-width: 560px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.kpi-card {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(13, 118, 110, 0.16);
  border-radius: var(--radius);
  padding: 22px 18px;
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}

.kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.kpi-card .num {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--primary);
  letter-spacing: -.5px;
}

.kpi-card .num span {
  font-size: 17px;
  font-weight: 700;
  margin-left: 2px;
}

.kpi-card .label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.5;
}

/* ===== Section shared ===== */
.section-head {
  max-width: 680px;
  margin-bottom: 38px;
}

.section-head.center-align {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid rgba(13, 118, 110, 0.14);
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  letter-spacing: .4px;
}

.section-title {
  font-size: 28px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.3px;
  margin-bottom: 10px;
}

.section-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
}

/* ===== Features ===== */
.features {
  padding: 80px 0;
  background: var(--bg);
}

.feature-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.feature-item {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 22px;
  padding: 30px 6px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}

.feature-item:hover {
  background: #fafdfc;
}

.feature-ic {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  border-radius: var(--radius);
  color: var(--primary);
  font-size: 22px;
}

.feature-no {
  display: block;
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.feature-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.feature-text {
  font-size: 15px;
  color: var(--muted);
  max-width: 780px;
  line-height: 1.8;
}

/* ===== Scene ===== */
.scene-section {
  padding: 80px 0;
  background: var(--bg-soft);
}

.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.scene-media {
  position: relative;
  min-height: 360px;
}

.scene-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-content {
  padding: 44px 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene-content .section-title {
  font-size: 25px;
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 22px;
}

.scene-tag {
  display: inline-block;
  padding: 5px 15px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}

.scene-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.scene-list li {
  padding-left: 18px;
  border-left: 3px solid var(--primary-light);
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.scene-list b {
  color: var(--ink);
  font-weight: 700;
}

/* ===== Steps ===== */
.steps-section {
  padding: 80px 0;
  background: var(--bg);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: 0 4px 18px rgba(13, 52, 58, 0.04);
  transition: transform .2s ease, box-shadow .2s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.step-num {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* ===== Reviews ===== */
.reviews {
  padding: 80px 0;
  background: var(--bg-soft);
}

.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.review-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 22px;
  box-shadow: 0 4px 18px rgba(13, 52, 58, 0.04);
  transition: box-shadow .2s ease, transform .2s ease;
}

.review-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.review-card.wide {
  grid-column: span 2;
  background: linear-gradient(125deg, #ffffff 0%, #f0faf8 100%);
  border-color: rgba(13, 118, 110, 0.2);
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 12px;
  font-size: 15px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.8;
  margin-bottom: 14px;
}

.review-meta {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

/* ===== FAQ ===== */
.faq {
  padding: 80px 0;
  background: var(--bg);
}

.faq-grid {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.faq-item.open {
  border-color: rgba(13, 118, 110, 0.4);
  box-shadow: 0 6px 20px rgba(13, 52, 58, 0.06);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  transition: color .2s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 14px;
  transition: transform .3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 22px 20px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 78px 0;
  background: linear-gradient(rgba(9, 56, 52, 0.92), rgba(9, 56, 52, 0.92)), url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
  color: #fff;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
}

.cta-text {
  max-width: 660px;
}

.cta-eyebrow {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .5px;
}

.cta-title {
  font-size: 30px;
  line-height: 1.35;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-text p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 220px;
}

.cta-actions .btn {
  width: 100%;
}

/* ===== Footer ===== */
.footer {
  background: #f8fbfb;
  border-top: 1px solid var(--line);
  padding-top: 56px;
  color: var(--muted);
  font-size: 14px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 44px;
  padding-bottom: 36px;
}

.footer-brand .logo {
  font-size: 17px;
}

.footer-brand p {
  max-width: 380px;
  margin-top: 14px;
  line-height: 1.75;
  font-size: 14px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}

.footer-col li {
  margin-bottom: 11px;
}

.footer-col a {
  color: var(--muted);
  transition: color .2s ease;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 72px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

/* ===== Fixbar ===== */
.fixbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 24px rgba(15, 45, 50, 0.08);
  padding: 10px 0;
  transform: translateY(110%);
  transition: transform .3s ease;
}

.fixbar.visible {
  transform: translateY(0);
}

.fixbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.fixbar-info strong {
  display: block;
  font-size: 15px;
  color: var(--ink);
}

.fixbar-info strong i {
  color: var(--primary);
  margin-right: 6px;
}

.fixbar-info span {
  font-size: 13px;
  color: var(--muted);
}

.btn-fixbar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 22px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transition: all .2s ease;
}

.btn-fixbar:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(13, 118, 110, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .scene-media {
    min-height: 260px;
  }

  .scene-media img {
    position: relative;
    height: auto;
    min-height: 260px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    row-gap: 6px;
    padding: 12px 0;
    min-height: auto;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-left: 0;
  }

  .main-nav a {
    padding: 0 16px;
    height: 32px;
    font-size: 14px;
  }

  .search-box {
    display: none;
  }

  .btn-header {
    padding: 8px 14px;
    font-size: 13px;
  }

  .logo {
    font-size: 15px;
  }

  .logo i {
    font-size: 20px;
  }

  .cat-hero {
    padding: 52px 0 48px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero-kpis {
    grid-template-columns: repeat(4, 1fr);
  }

  .kpi-card .num {
    font-size: 23px;
  }

  .section-title {
    font-size: 24px;
  }

  .scene-content {
    padding: 30px 26px;
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

  .review-card.wide {
    grid-column: span 1;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .cta-actions .btn {
    width: auto;
    flex: 1;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .logo {
    font-size: 13px;
  }

  .logo i {
    font-size: 18px;
  }

  .logo-full {
    display: none;
  }

  .logo-short {
    display: inline;
  }

  .main-nav a {
    padding: 0 12px;
    font-size: 13px;
  }

  .cat-hero {
    padding: 42px 0 40px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-sub {
    font-size: 14px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-kpis {
    grid-template-columns: repeat(2, 1fr);
  }

  .kpi-card {
    padding: 16px 14px;
  }

  .features,
  .scene-section,
  .steps-section,
  .reviews,
  .faq,
  .cta-section {
    padding: 54px 0;
  }

  .section-title {
    font-size: 22px;
  }

  .feature-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 4px;
  }

  .scene-list li {
    font-size: 14px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .cta-title {
    font-size: 24px;
  }

  .cta-actions {
    flex-direction: column;
  }

  .cta-actions .btn {
    width: 100%;
    flex: none;
  }

  .fixbar-info strong {
    font-size: 13px;
  }

  .fixbar-info span {
    font-size: 12px;
  }

  .btn-fixbar {
    padding: 8px 16px;
    font-size: 13px;
  }
}