/* roulang page: index */
:root {
  --primary: #1F5F4F;
  --primary-light: #2A7A66;
  --primary-dark: #143B31;
  --gold: #C99B4A;
  --bg-warm: #F7F4EE;
  --bg-card: #FFFFFF;
  --bg-mint: #EDF3F0;
  --text-dark: #1F2A26;
  --text-mid: #4A5A54;
  --text-weak: #7C8B85;
  --border: #E3DED3;
  --border-dark: #D0C8B8;
  --success: #3D7A64;
  --warning: #B97A3E;
  --radius-lg: 8px;
  --radius-md: 6px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(20,59,49,0.06);
  --shadow-md: 0 4px 12px rgba(20,59,49,0.08);
  --shadow-lg: 0 10px 28px rgba(20,59,49,0.10);
  --shadow-gold: 0 6px 20px rgba(201,155,74,0.35);
  --transition: all 0.3s ease;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-warm);
  color: var(--text-dark);
  font-size: 16px;
  line-height: 1.9;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-light); }
ul { list-style: none; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.btn { border-radius: var(--radius-md); font-weight: 500; padding: 12px 28px; transition: var(--transition); font-family: var(--font-sans); }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-primary-custom {
  background: var(--primary);
  border: 1px solid var(--primary);
  color: #fff;
}
.btn-primary-custom:hover, .btn-primary-custom:focus {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(31,95,79,0.30);
}
.btn-primary-custom:active { transform: translateY(1px); box-shadow: none; }
.btn-primary-custom:focus, .btn-outline-custom:focus, .btn-ghost:focus, .btn-demo:focus { outline: 2px solid var(--gold); outline-offset: 2px; box-shadow: none; }
.btn-outline-custom {
  background: rgba(201,155,74,0.10);
  border: 1px solid var(--gold);
  color: var(--primary);
}
.btn-outline-custom:hover {
  background: rgba(201,155,74,0.22);
  border-color: var(--gold);
  color: var(--primary);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-ghost:hover {
  background: rgba(31,95,79,0.06);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-demo {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 8px 20px;
  font-size: 14px;
  border-radius: var(--radius-md);
}
.btn-demo:hover { background: var(--primary-light); color: #fff; transform: translateY(-1px); }
.btn-block { display: block; width: 100%; text-align: center; }
.text-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 500; font-size: 15px; color: var(--primary);
}
.text-link:hover { color: var(--primary-light); }
.text-link i { transition: transform 0.3s; }
.text-link:hover i { transform: translateX(4px); }

/* ===== Header/Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--bg-card);
  box-shadow: 0 2px 12px rgba(20,59,49,0.08);
  transition: var(--transition);
}
.header-top {
  background: var(--primary-dark);
  transition: all 0.4s ease;
}
.header-top-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; gap: 20px;
}
.brand-logo {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.brand-logo .brand-icon {
  width: 36px; height: 36px; background: var(--gold);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  color: var(--primary-dark); font-size: 18px;
}
.brand-logo .brand-text {
  font-family: var(--font-serif); font-weight: 700; font-size: 20px;
  color: #fff; letter-spacing: 0.5px; line-height: 1.2;
}
.brand-logo .brand-sub {
  display: block; font-size: 10px; font-weight: 400;
  color: rgba(255,255,255,0.7); letter-spacing: 2px;
}
.header-search { flex: 0 0 300px; }
.header-search form {
  display: flex; align-items: center; background: rgba(255,255,255,0.10);
  border-radius: var(--radius-md); border: 1px solid rgba(255,255,255,0.15);
  overflow: hidden;
}
.header-search input {
  flex: 1; background: transparent; border: none; outline: none;
  color: #fff; padding: 8px 14px; font-size: 14px; font-family: var(--font-sans);
}
.header-search input::placeholder { color: rgba(255,255,255,0.6); }
.header-search button {
  background: transparent; border: none; color: rgba(255,255,255,0.7);
  padding: 0 12px; font-size: 14px; cursor: pointer; transition: var(--transition);
}
.header-search button:hover { color: var(--gold); }
.header-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.login-link { color: rgba(255,255,255,0.85); font-size: 14px; font-weight: 400; }
.login-link:hover { color: var(--gold); }
.header-nav { background: var(--bg-card); border-bottom: 1px solid var(--border); }
.header-nav-inner {
  display: flex; align-items: center; justify-content: space-between; padding: 8px 0; gap: 20px;
}
.nav-channels { display: flex; align-items: center; gap: 4px; }
.nav-channels li a {
  display: block; padding: 6px 16px; font-size: 15px; font-weight: 500;
  color: var(--text-dark); border-radius: var(--radius-md); position: relative;
}
.nav-channels li a:hover { color: var(--primary); background: rgba(31,95,79,0.05); }
.nav-channels li a.active { color: var(--primary); font-weight: 600; }
.nav-channels li a.active::after {
  content: ''; position: absolute; bottom: 0; left: 16px; right: 16px;
  height: 2px; background: var(--gold); border-radius: 2px;
}
.nav-hotwords { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-weak); }
.nav-hotwords span { font-weight: 500; }
.nav-hotwords a { color: var(--text-mid); font-size: 13px; padding: 2px 8px; border-radius: var(--radius-pill); }
.nav-hotwords a:hover { color: var(--primary); background: rgba(31,95,79,0.06); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  color: var(--text-dark); width: 40px; height: 40px; border-radius: var(--radius-md);
  font-size: 18px; cursor: pointer; align-items: center; justify-content: center;
}
.mobile-nav {
  display: none; background: var(--bg-card); border-top: 1px solid var(--border);
  padding: 16px 0;
}
.mobile-nav.show { display: block; }
.mobile-nav .mobile-nav-list { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav .mobile-nav-list a {
  display: block; padding: 12px 20px; font-size: 15px; color: var(--text-dark);
  border-radius: var(--radius-md);
}
.mobile-nav .mobile-nav-list a:hover { background: rgba(31,95,79,0.06); color: var(--primary); }
.mobile-nav .mobile-nav-list a.active { color: var(--primary); font-weight: 600; background: rgba(31,95,79,0.04); }
.header-scrolled .header-top { background: var(--primary-dark); padding: 0; }
.header-scrolled .header-top-inner { padding: 6px 0; }
.header-scrolled .header-nav { position: absolute; top: 0; left: 0; right: 0; }
.header-scrolled .brand-text { font-size: 17px; }
.header-scrolled .header-search { flex-basis: auto; }
.header-scrolled .header-search form { width: 40px; }
.header-scrolled .header-search input { display: none; }
.header-scrolled .header-search button { padding: 10px; font-size: 16px; color: #fff; }
.header-scrolled .nav-hotwords { display: none; }
.header-scrolled .nav-channels li a { font-size: 14px; }

/* ===== Hero ===== */
.hero-section {
  position: relative; padding: 96px 0 72px;
  background-color: var(--bg-warm);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; background-repeat: no-repeat;
}
.hero-section::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(247,244,238,0.94) 30%, rgba(247,244,238,0.80) 70%, rgba(247,244,238,0.55));
}
.hero-section .container { position: relative; z-index: 2; }
.hero-section h1 {
  font-family: var(--font-serif); font-size: 40px; line-height: 1.3; font-weight: 700;
  color: var(--text-dark); margin-bottom: 20px;
}
.hero-section h1 .highlight { color: var(--primary); position: relative; }
.hero-section h1 .highlight::after {
  content: ''; position: absolute; bottom: 4px; left: 0; right: 0;
  height: 8px; background: rgba(201,155,74,0.35); z-index: -1; border-radius: 4px;
}
.hero-subtitle {
  font-size: 17px; line-height: 1.9; color: var(--text-mid);
  margin-bottom: 32px; max-width: 540px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust {
  display: flex; gap: 40px; flex-wrap: wrap; padding-top: 28px;
  border-top: 1px solid var(--border);
}
.trust-item { display: flex; flex-direction: column; }
.trust-num {
  font-family: var(--font-serif); font-size: 32px; font-weight: 700;
  color: var(--primary); font-feature-settings: "tnum";
}
.trust-label { font-size: 13px; color: var(--text-weak); margin-top: 2px; }
.hero-image { position: relative; }
.hero-image::before {
  content: ''; position: absolute; top: -12px; right: -12px;
  width: 100%; height: 100%; border: 2px solid var(--gold);
  border-radius: var(--radius-lg); z-index: 0;
}
.hero-image img {
  position: relative; z-index: 1; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); width: 100%;
}

/* ===== Section general ===== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
  font-family: var(--font-serif); font-size: 30px; font-weight: 700;
  color: var(--text-dark); margin-bottom: 12px;
}
.section-header p { font-size: 16px; color: var(--text-mid); max-width: 560px; margin: 0 auto; }
.section-header .text-link { margin-top: 16px; display: inline-flex; }

/* ===== Features ===== */
.features-section { padding: 96px 0; background: var(--bg-warm); }
.feature-wide-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 40px; margin-bottom: 32px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.feature-wide-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary-light); transform: translateY(-2px); }
.feature-wide-card .feature-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  background: rgba(31,95,79,0.10); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.feature-wide-card h3 { font-family: var(--font-serif); font-size: 24px; font-weight: 700; margin-bottom: 14px; color: var(--text-dark); }
.feature-wide-card p { font-size: 15px; color: var(--text-mid); line-height: 1.9; margin-bottom: 18px; }
.feature-wide-card .row > div:last-child { text-align: center; }
.feature-wide-card img { border-radius: var(--radius-md); box-shadow: var(--shadow-md); max-height: 320px; object-fit: cover; width: 100%; }
.feature-cards-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.feature-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 32px 32px 36px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary-light); transform: translateY(-2px); }
.feature-card .feature-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: rgba(201,155,74,0.15); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 18px;
}
.feature-card h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--text-dark); }
.feature-card p { font-size: 15px; color: var(--text-mid); line-height: 1.8; }
.offset-top { transform: translateY(-12px); }
.offset-bottom { transform: translateY(12px); }

/* ===== Demo ===== */
.demo-section { padding: 96px 0; background: var(--bg-mint); }
.demo-screen {
  margin-bottom: 48px; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); background: #fff; border: 1px solid var(--border);
}
.demo-screen img { width: 100%; display: block; border-radius: var(--radius-lg); }
.demo-steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.demo-step {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px 24px; text-align: center;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.demo-step:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.step-num {
  display: inline-block; font-family: var(--font-serif); font-size: 20px; font-weight: 700;
  color: var(--gold); border: 2px solid var(--gold); border-radius: var(--radius-pill);
  width: 48px; height: 48px; line-height: 44px; text-align: center; margin-bottom: 14px;
}
.demo-step h4 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--text-dark); }
.demo-step p { font-size: 14px; color: var(--text-mid); line-height: 1.7; }

/* ===== Evidence ===== */
.evidence-section { padding: 96px 0; background: var(--bg-warm); }
.stats-banner {
  background: var(--primary-dark); border-radius: var(--radius-lg);
  padding: 48px 40px; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-bottom: 64px; position: relative; overflow: hidden;
}
.stats-banner::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}
.stat-item { text-align: center; position: relative; z-index: 1; }
.stat-num {
  display: block; font-family: var(--font-serif); font-size: 44px; font-weight: 700;
  color: #fff; line-height: 1.2; font-feature-settings: "tnum";
}
.stat-unit { display: block; font-size: 14px; color: var(--gold); margin-top: 6px; }
.testimonial-grid {
  display: grid; grid-template-columns: 2fr 1fr; gap: 32px;
}
.testimonial-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 36px 36px; box-shadow: var(--shadow-sm);
  transition: var(--transition); position: relative;
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.testimonial-card .quote-mark {
  font-size: 28px; color: var(--gold); margin-bottom: 16px;
}
.testimonial-card p { font-size: 16px; color: var(--text-dark); line-height: 1.9; font-style: italic; }
.testimonial-author {
  display: flex; align-items: center; gap: 14px; margin-top: 24px;
  padding-top: 20px; border-top: 1px solid var(--border);
}
.author-avatar {
  width: 48px; height: 48px; border-radius: 50%; background-size: cover;
  background-position: center; border: 2px solid var(--gold);
}
.testimonial-author strong { display: block; font-size: 15px; color: var(--text-dark); }
.testimonial-author span { font-size: 13px; color: var(--text-weak); }
.testimonial-sm {
  align-self: flex-end;
  transform: translateY(16px);
}

/* ===== News ===== */
.news-section { padding: 96px 0; background: var(--bg-warm); }
.news-list { display: flex; flex-direction: column; gap: 20px; max-width: 960px; margin: 0 auto; }
.news-card {
  display: flex; background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow-sm); overflow: hidden;
  transition: var(--transition);
}
.news-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary-light); transform: translateY(-2px); }
.news-card .news-thumb {
  flex: 0 0 180px; background-size: cover; background-position: center;
  position: relative; min-height: 140px;
}
.news-card .news-thumb::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(20,59,49,0.3));
}
.news-content { flex: 1; padding: 24px 28px; }
.news-content h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; line-height: 1.5; }
.news-content h3 a { color: var(--text-dark); }
.news-content h3 a:hover { color: var(--primary); }
.news-content p {
  font-size: 14px; color: var(--text-mid); line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 16px;
}
.news-meta {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-weak);
}
.news-meta .badge {
  background: rgba(201,155,74,0.15); color: var(--warning);
  font-weight: 500; padding: 4px 12px; border-radius: var(--radius-pill); font-size: 12px;
}
.news-meta .news-date { display: inline-flex; align-items: center; gap: 6px; }
.news-meta .news-read-more a { color: var(--primary); font-size: 13px; font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.news-meta .news-read-more a:hover { color: var(--primary-light); }
.empty-state {
  background: var(--bg-mint); border: 2px dashed var(--border-dark);
  border-radius: var(--radius-lg); padding: 56px 24px; text-align: center;
}
.empty-state i { font-size: 36px; color: var(--text-weak); margin-bottom: 12px; display: block; }
.empty-state p { font-size: 15px; color: var(--text-mid); }

/* ===== Pricing ===== */
.pricing-section { padding: 96px 0; background: var(--bg-mint); }
.pricing-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 40px 28px 32px; text-align: center;
  box-shadow: var(--shadow-sm); transition: var(--transition); position: relative; height: 100%;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--primary-light); }
.pricing-featured {
  background: var(--primary-dark); border-color: var(--primary-dark); color: #fff;
}
.pricing-featured:hover { border-color: var(--primary-dark); }
.pricing-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #fff; font-size: 13px; font-weight: 600;
  padding: 4px 20px; border-radius: var(--radius-pill); box-shadow: var(--shadow-gold);
}
.pricing-card .badge {
  display: inline-block; font-size: 12px; font-weight: 500; padding: 4px 14px;
  border-radius: var(--radius-pill); margin-bottom: 16px;
}
.badge-base { background: rgba(31,95,79,0.10); color: var(--primary); }
.badge-pro { background: rgba(201,155,74,0.20); color: var(--gold); }
.badge-enterprise { background: rgba(255,255,255,0.15); color: #fff; }
.pricing-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; color: var(--text-dark); }
.pricing-featured h3 { color: #fff; }
.pricing-card .price {
  font-family: var(--font-serif); font-size: 28px; font-weight: 700;
  color: var(--primary); margin-bottom: 24px;
}
.pricing-featured .price { color: var(--gold); }
.price-currency { font-size: 18px; vertical-align: top; }
.price-period { font-size: 14px; font-weight: 400; color: var(--text-weak); }
.pricing-featured .price-period { color: rgba(255,255,255,0.6); }
.pricing-features { text-align: left; margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.pricing-features li {
  display: flex; align-items: flex-start; gap: 10px; font-size: 14px;
  color: var(--text-mid); line-height: 1.5;
}
.pricing-features li i { color: var(--success); font-size: 14px; margin-top: 4px; }
.pricing-featured .pricing-features li { color: rgba(255,255,255,0.85); }
.pricing-featured .pricing-features li i { color: var(--gold); }
.pricing-card .btn { width: 100%; }

/* ===== FAQ ===== */
.faq-section { padding: 96px 0; background: var(--bg-warm); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.accordion-item {
  border: none; margin-bottom: 16px; background: var(--bg-card);
  border-radius: var(--radius-lg) !important; box-shadow: var(--shadow-sm);
  overflow: hidden; transition: var(--transition);
}
.accordion-item:hover { box-shadow: var(--shadow-md); }
.accordion-button {
  background: var(--bg-card); color: var(--text-dark); font-family: var(--font-sans);
  font-size: 17px; font-weight: 600; padding: 22px 24px;
  display: flex; align-items: center; gap: 16px; box-shadow: none;
}
.accordion-button::after {
  font-family: "Font Awesome 6 Free"; font-weight: 900;
  content: "\f067"; background: none; width: auto; height: auto;
  transition: transform 0.3s; color: var(--primary); font-size: 14px;
}
.accordion-button:not(.collapsed)::after { transform: rotate(45deg); }
.accordion-button:not(.collapsed) { background: var(--bg-card); color: var(--primary); box-shadow: none; }
.accordion-button:focus { box-shadow: none; border: none; }
.accordion-header { border: none; }
.faq-q {
  width: 32px; height: 32px; border-radius: 50%; background: rgba(201,155,74,0.15);
  color: var(--gold); font-weight: 700; font-size: 14px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.accordion-body {
  padding: 0 24px 24px 72px; font-size: 15px; line-height: 1.8; color: var(--text-mid);
  background: var(--bg-card); border-top: 1px solid var(--border);
  padding-top: 16px;
}
.faq-a {
  color: var(--primary); font-weight: 700; margin-right: 8px;
}

/* ===== CTA ===== */
.cta-section { padding: 96px 0; background: var(--primary-dark); position: relative; }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 56px 48px; box-shadow: var(--shadow-lg);
}
.cta-card h2 {
  font-family: var(--font-serif); font-size: 30px; font-weight: 700;
  color: var(--text-dark); margin-bottom: 16px;
}
.cta-card > .row > div:first-child > p {
  font-size: 15px; color: var(--text-mid); margin-bottom: 28px; line-height: 1.8;
}
.cta-list { display: flex; flex-direction: column; gap: 12px; }
.cta-list li {
  display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-dark);
}
.cta-list li i {
  width: 36px; height: 36px; background: rgba(201,155,74,0.15);
  color: var(--gold); border-radius: 50%; display: flex;
  align-items: center; justify-content: center; font-size: 14px;
}
.contact-form .form-control {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 10px 16px; font-size: 15px; font-family: var(--font-sans); color: var(--text-dark);
  margin-bottom: 16px; transition: var(--transition);
}
.contact-form .form-control:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(31,95,79,0.15); outline: none;
}
.contact-form .form-control::placeholder { color: var(--text-weak); }
.contact-form select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237C8B85' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.contact-form .btn { margin-top: 4px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.85); padding: 64px 0 0;
  position: relative;
}
.site-footer::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px; pointer-events: none;
}
.site-footer .container { position: relative; z-index: 1; }
.footer-brand h3 {
  font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: #fff;
  margin-bottom: 14px;
}
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.7); max-width: 280px; }
.footer-brand .brand-badge {
  display: inline-flex; align-items: center; gap: 8px; background: var(--gold);
  color: var(--primary-dark); font-size: 12px; font-weight: 600;
  padding: 4px 14px; border-radius: var(--radius-pill); margin-top: 16px;
}
.site-footer h4 {
  font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px;
  position: relative; padding-bottom: 10px;
}
.site-footer h4::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 28px;
  height: 2px; background: var(--gold); border-radius: 2px;
}
.site-footer ul { display: flex; flex-direction: column; gap: 10px; }
.site-footer ul li a { color: rgba(255,255,255,0.75); font-size: 14px; transition: var(--transition); }
.site-footer ul li a:hover { color: var(--gold); padding-left: 4px; }
.footer-contact li {
  display: flex; align-items: center; gap: 10px; font-size: 14px;
  color: rgba(255,255,255,0.75);
}
.footer-contact li i { color: var(--gold); font-size: 14px; width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10); margin-top: 48px;
  padding: 18px 0; font-size: 13px; color: rgba(255,255,255,0.5);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.footer-bottom a { color: rgba(255,255,255,0.6); }

/* ===== Float CTA ===== */
.float-cta {
  position: fixed; right: 24px; bottom: 32px; z-index: 999;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all 0.4s ease;
}
.float-cta.show { opacity: 1; visibility: visible; transform: translateY(0); }
.float-cta.hide { opacity: 0; visibility: hidden; }
.float-cta-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gold); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; box-shadow: var(--shadow-gold);
  transition: var(--transition); border: none; cursor: pointer;
}
.float-cta-btn:hover {
  width: 64px; height: 64px; box-shadow: 0 8px 24px rgba(201,155,74,0.5);
  color: var(--primary-dark);
}
.float-cta-label {
  writing-mode: vertical-lr; font-size: 12px; color: var(--primary);
  background: var(--bg-card); border: 1px solid var(--gold);
  padding: 6px 4px; border-radius: var(--radius-md); letter-spacing: 2px;
  box-shadow: var(--shadow-sm);
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .container { max-width: 960px; }
  .hero-section h1 { font-size: 34px; }
  .stats-banner { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991px) {
  .header-search { flex: 0 0 220px; }
  .container { max-width: 720px; }
  .hero-section { padding: 72px 0 56px; }
  .hero-section h1 { font-size: 30px; }
  .hero-image { margin-top: 40px; }
  .feature-cards-grid { grid-template-columns: 1fr; }
  .offset-top, .offset-bottom { transform: translateY(0); }
  .demo-steps { grid-template-columns: 1fr 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .testimonial-sm { transform: translateY(0); align-self: auto; }
  .pricing-card { padding: 32px 20px; }
  .cta-card { padding: 40px 28px; }
  .footer-bottom { justify-content: center; text-align: center; }
}
@media (max-width: 767px) {
  .header-top-inner { flex-wrap: wrap; padding: 10px 0; }
  .header-search { flex: 1 1 100%; order: 3; margin-top: 8px; }
  .header-actions { order: 2; }
  .header-search form { background: rgba(255,255,255,0.10); }
  .header-nav { display: none; }
  .nav-toggle { display: flex; order: 1; }
  .brand-logo .brand-text { font-size: 17px; }
  .mobile-nav.show { display: block; }
  .hero-section { padding: 56px 0 48px; }
  .hero-section h1 { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .hero-trust { gap: 20px; }
  .section-header h2 { font-size: 24px; }
  .feature-wide-card { padding: 28px 20px; }
  .demo-steps { grid-template-columns: 1fr; }
  .stats-banner { grid-template-columns: 1fr 1fr; padding: 32px 20px; }
  .stat-num { font-size: 32px; }
  .testimonial-card { padding: 28px 20px; }
  .news-card { flex-direction: column; }
  .news-card .news-thumb { flex-basis: auto; min-height: 180px; }
  .pricing-section .row { row-gap: 32px; }
  .cta-card { padding: 32px 20px; }
  .cta-section { padding: 64px 0; }
  .site-footer { padding-top: 48px; }
  .footer-bottom { flex-direction: column; align-items: center; }
  .float-cta { right: 16px; bottom: 20px; }
  .float-cta-label { display: none; }
  .accordion-body { padding-left: 20px; padding-right: 20px; }
}
@media (max-width: 520px) {
  .brand-logo .brand-text { font-size: 15px; }
  .hero-actions .btn { padding: 12px 20px; font-size: 15px; }
  .stats-banner { grid-template-columns: 1fr; row-gap: 24px; }
  .feature-cards-grid { gap: 16px; }
  .cta-list li { font-size: 14px; }
  .news-content { padding: 20px 18px; }
}

/* roulang page: category1 */
:root {
  --primary: #1F5F4F;
  --primary-light: #2A7A66;
  --primary-dark: #143B31;
  --accent: #C99B4A;
  --bg: #F7F4EE;
  --card-bg: #FFFFFF;
  --text: #1F2A26;
  --text-secondary: #4A5A54;
  --text-muted: #7C8B85;
  --border: #E3DED3;
  --light-green: #EDF3F0;
  --success: #3D7A64;
  --warning: #B97A3E;
  --radius-lg: 8px;
  --radius-sm: 6px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(20, 59, 49, 0.06);
  --shadow-md: 0 10px 28px rgba(20, 59, 49, 0.10);
  --shadow-nav: 0 2px 12px rgba(20, 59, 49, 0.08);
  --shadow-cta: 0 6px 20px rgba(201, 155, 74, 0.35);
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; }
button { border: none; cursor: pointer; }
input, select, textarea { font-family: inherit; }

.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: var(--primary-dark);
  box-shadow: var(--shadow-nav);
}
.header-top { background: var(--primary-dark); }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  gap: 16px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  flex-shrink: 0;
}
.brand-logo:hover { color: #fff; }
.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.brand-text {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.brand-sub {
  font-size: 10px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 2px;
  font-family: "Noto Sans SC", sans-serif;
}
.header-search { width: 280px; }
.header-search form {
  display: flex;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.header-search input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 7px 14px;
  color: #fff;
  font-size: 14px;
  outline: none;
}
.header-search input::placeholder { color: rgba(255, 255, 255, 0.55); }
.header-search button {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  padding: 0 14px;
  font-size: 14px;
}
.header-search button:hover { color: var(--accent); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.login-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}
.login-link:hover { color: #fff; }
.btn-demo {
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.btn-demo:hover {
  background: #d6ab5c;
  color: var(--primary-dark);
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  background: transparent;
  color: #fff;
  font-size: 22px;
  line-height: 1;
  padding: 4px;
}
.header-nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
}
.nav-channels {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.nav-channels a {
  display: inline-block;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
}
.nav-channels a:hover { color: var(--primary); }
.nav-channels a.active { color: var(--primary); }
.nav-channels a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-hotwords {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  display: flex;
  gap: 10px;
  align-items: center;
}
.nav-hotwords a {
  color: var(--text-secondary);
  font-size: 13px;
}
.nav-hotwords a:hover { color: var(--primary); }
.mobile-nav {
  display: none;
  background: #fff;
  border-top: 1px solid var(--border);
}
.mobile-nav-list {
  padding: 12px 0;
  display: flex;
  flex-direction: column;
}
.mobile-nav-list a {
  padding: 10px 0;
  border-bottom: 1px solid #f0ebe2;
  color: var(--text);
}
.mobile-nav-list a.active { color: var(--primary); font-weight: 500; }
.mobile-nav-list a:last-child { border-bottom: none; }

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, rgba(31, 95, 79, 0.05) 0%, rgba(201, 155, 74, 0.06) 100%), var(--bg);
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 72px 0 64px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(247, 244, 238, 0.88);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb-line {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb-line a { color: var(--primary); }
.breadcrumb-line a:hover { color: var(--primary-light); }
.breadcrumb-divider { margin: 0 8px; color: var(--border); font-weight: 300; }
.page-hero h1 {
  font-size: 40px;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.page-hero h1 .highlight {
  color: var(--primary);
  position: relative;
}
.page-hero h1 .highlight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 8px;
  background: rgba(201, 155, 74, 0.3);
  z-index: -1;
  border-radius: 2px;
}
.page-hero .lead {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.9;
  margin-bottom: 28px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.hero-tags .tag-pill {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 13px;
  color: var(--text-secondary);
}
.hero-tags .tag-pill i {
  color: var(--accent);
  margin-right: 6px;
  font-size: 12px;
}

/* ===== Section ===== */
.section-block { padding: 80px 0; }
.section-block--light { background: var(--light-green); }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header .section-kicker {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 3px;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.section-header h2 {
  font-size: 30px;
  margin-bottom: 14px;
}
.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: 15px;
}

/* ===== Sub-category Tags ===== */
.subcat-section {
  padding: 48px 0 16px;
  background: var(--bg);
}
.subcat-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.subcat-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 10px 24px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.subcat-tag i { color: var(--accent); font-size: 13px; }
.subcat-tag:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.subcat-tag.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.subcat-tag.active i { color: var(--accent); }

/* ===== Content Cards ===== */
.content-cards-section { padding: 60px 0 80px; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.content-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}
.content-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.content-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.content-card:hover::after { opacity: 1; }
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(31, 95, 79, 0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}
.card-badge--gold {
  background: rgba(201, 155, 74, 0.12);
  color: #9a7328;
}
.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--light-green);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  flex-shrink: 0;
}
.content-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  line-height: 1.4;
}
.content-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
  flex-grow: 1;
}
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #f0ebe2;
  padding-top: 14px;
}
.card-date {
  font-size: 13px;
  color: var(--text-muted);
  font-feature-settings: "tnum";
}
.card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}
.card-link i { transition: transform 0.2s; font-size: 12px; margin-left: 4px; }
.card-link:hover i { transform: translateX(4px); }

/* ===== Process ===== */
.process-section {
  background: var(--light-green);
  padding: 80px 0;
  position: relative;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
  margin-top: 40px;
}
.process-step {
  text-align: center;
  padding: 24px 16px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  transition: var(--transition);
}
.process-step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-num {
  font-family: "Noto Serif SC", serif;
  font-size: 32px;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
  font-feature-settings: "tnum";
}
.step-icon {
  width: 44px;
  height: 44px;
  background: rgba(31, 95, 79, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--primary);
  font-size: 18px;
}
.process-step h4 {
  font-size: 16px;
  margin-bottom: 8px;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 600;
}
.process-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== Related Cards ===== */
.related-section { padding: 80px 0; }
.related-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.related-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
  transition: var(--transition);
}
.related-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.related-thumb {
  width: 130px;
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--light-green);
  display: flex;
  align-items: center;
  justify-content: center;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-content { flex: 1; }
.related-content h4 {
  font-size: 17px;
  margin-bottom: 6px;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 600;
}
.related-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.6;
}
.related-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  gap: 14px;
}

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; background: var(--bg); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-item-header {
  display: flex;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: #fff;
  gap: 14px;
}
.faq-item-header:hover { color: var(--primary); }
.faq-q-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(201, 155, 74, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.faq-icon {
  margin-left: auto;
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.3s ease;
}
.faq-body {
  display: none;
  padding: 0 24px 20px 66px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-body.open { display: block; }
.faq-icon.rotate { transform: rotate(45deg); }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary-dark);
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(201, 155, 74, 0.12);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -30px;
  left: 10%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(31, 95, 79, 0.4);
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 1000px;
  margin: 0 auto;
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.cta-text h2 {
  color: #fff;
  font-size: 30px;
  margin-bottom: 16px;
}
.cta-text h2 span { color: var(--accent); }
.cta-text p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 0;
}
.cta-contact-info {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cta-contact-info li {
  list-style: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}
.cta-contact-info li i {
  color: var(--accent);
  margin-right: 10px;
  width: 16px;
}
.cta-form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}
.cta-form-card h3 {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}
.cta-form-card .form-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.cta-form-card label {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 6px;
}
.cta-form-card .form-control,
.cta-form-card .form-select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  background: #fff;
  margin-bottom: 16px;
}
.cta-form-card .form-control:focus,
.cta-form-card .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 95, 79, 0.15);
}
.cta-form-card .btn-submit {
  width: 100%;
  background: var(--primary);
  color: #fff;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}
.cta-form-card .btn-submit:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(31, 95, 79, 0.3);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 36px;
  pointer-events: none;
}
.site-footer .container { position: relative; z-index: 1; }
.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 10px;
  font-family: "Noto Serif SC", serif;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin-bottom: 16px;
}
.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(201, 155, 74, 0.15);
  color: var(--accent);
  font-size: 12px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 600;
  letter-spacing: 1px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
}
.site-footer ul li a:hover {
  color: var(--accent);
  padding-left: 2px;
}
.footer-contact li {
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
}
.footer-contact li i {
  color: var(--accent);
  margin-top: 5px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  margin-top: 48px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== Floating CTA ===== */
.floating-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.floating-cta.visible { opacity: 1; visibility: visible; }
.floating-cta-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-cta);
  transition: var(--transition);
}
.floating-cta-btn:hover {
  transform: scale(1.1);
  width: 64px;
  height: 64px;
  color: var(--primary-dark);
}
.floating-cta-label {
  font-size: 12px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.9);
  padding: 2px 8px;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .header-search { width: 220px; }
  .process-steps { gap: 14px; }
}
@media (max-width: 991.98px) {
  .header-search { display: none; }
  .header-nav-inner {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav-channels { gap: 20px; flex-shrink: 0; }
  .nav-hotwords { display: none; }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .process-step:nth-child(4), .process-step:nth-child(5) { margin-top: 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; gap: 32px; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero h1 { font-size: 32px; }
}
@media (max-width: 767.98px) {
  .header-top-inner { height: 56px; }
  .brand-text { font-size: 16px; }
  .brand-sub { font-size: 9px; }
  .login-link { display: none; }
  .btn-demo { padding: 6px 14px; font-size: 13px; }
  .nav-toggle { display: inline-flex; }
  .header-nav { display: none; }
  .mobile-nav.open { display: block; }
  .section-block, .process-section, .related-section, .faq-section, .cta-section { padding: 56px 0; }
  .section-header h2 { font-size: 24px; }
  .page-hero h1 { font-size: 28px; line-height: 1.3; }
  .page-hero .lead { font-size: 15px; }
  .process-steps { grid-template-columns: 1fr; }
  .related-item { flex-direction: column; padding: 20px; text-align: center; }
  .related-thumb { width: 100%; height: 120px; }
  .cta-form-card { padding: 24px; }
  .floating-cta-label { display: none; }
  .content-card { padding: 22px; }
  .faq-item-header { padding: 16px 18px; font-size: 15px; }
  .faq-body { padding: 0 18px 16px 52px; }
}
@media (max-width: 520px) {
  .cards-grid { gap: 20px; }
  .hero-tags .tag-pill { font-size: 12px; padding: 5px 14px; }
  .cta-contact-info { margin-top: 16px; }
  .footer-bottom el { flex-direction: column; gap: 6px; text-align: center; }
}

/* roulang page: article */
:root{
  --primary:#1F5F4F;--primary-light:#2A7A66;--primary-dark:#143B31;
  --accent:#C99B4A;--bg-page:#F7F4EE;--bg-white:#FFFFFF;
  --text-dark:#1F2A26;--text-body:#4A5A54;--text-muted:#7C8B85;
  --border-color:#E3DED3;--bg-muted:#F2EFE7;--bg-soft:#EDF3F0;
  --font-heading:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --radius-lg:8px;--radius-sm:6px;--radius-pill:999px;
  --shadow-card:0 1px 3px rgba(20,59,49,.06);
  --shadow-hover:0 10px 28px rgba(20,59,49,.10);
  --shadow-nav:0 2px 12px rgba(20,59,49,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-size:16px;line-height:1.9;color:var(--text-body);background:var(--bg-page);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:600;color:var(--text-dark);line-height:1.35;margin:0 0 14px}
p{margin:0 0 20px}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-light)}
img{max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px}
@media (max-width:991.98px){.container{max-width:960px}}
@media (max-width:767.98px){.container{max-width:100%;padding-left:14px;padding-right:14px}}
.btn{display:inline-block;font-weight:500;font-size:16px;line-height:1.5;text-align:center;border-radius:var(--radius-sm);padding:12px 28px;border:1px solid transparent;transition:all .25s ease;cursor:pointer;background:transparent}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-light);border-color:var(--primary-light);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(31,95,79,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-outline-accent{background:rgba(201,155,74,.10);border:1px solid var(--accent);color:var(--primary)}
.btn-outline-accent:hover{background:rgba(201,155,74,.20);color:var(--primary)}
.btn-lg{padding:14px 34px;font-size:17px}
.form-control,.form-select{background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:12px 14px;font-size:15px;color:var(--text-dark);width:100%;transition:border-color .2s,box-shadow .2s}
.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,95,79,.15);outline:none}
.form-control::placeholder{color:var(--text-muted)}

.site-header{position:sticky;top:0;z-index:1080;box-shadow:var(--shadow-nav)}
.header-top{background:var(--primary-dark);padding:8px 0;transition:padding .3s ease}
.header-top-inner{display:flex;align-items:center;gap:20px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand-icon{width:36px;height:36px;background:var(--accent);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-size:16px;flex-shrink:0}
.brand-text{font-family:var(--font-heading);font-size:18px;font-weight:600;color:#fff;line-height:1.2}
.brand-sub{display:block;font-size:11px;font-weight:400;font-family:var(--font-body);color:rgba(255,255,255,.72);letter-spacing:.4px}
.header-search{flex:0 1 320px;margin-left:12px;min-width:0}
.header-search form{display:flex;background:rgba(255,255,255,.12);border-radius:6px;overflow:hidden;border:1px solid rgba(255,255,255,.12);transition:border-color .2s,background .2s}
.header-search form:focus-within{border-color:var(--accent);background:rgba(255,255,255,.18)}
.header-search input{flex:1;background:transparent;border:none;outline:none;padding:8px 14px;font-size:14px;color:#fff;min-width:0}
.header-search input::placeholder{color:rgba(255,255,255,.55)}
.header-search button{background:transparent;border:none;color:rgba(255,255,255,.8);padding:0 14px;font-size:14px;cursor:pointer}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.login-link{color:rgba(255,255,255,.85);font-size:14px;display:inline-flex;align-items:center;gap:4px}
.login-link:hover{color:#fff}
.btn-demo{background:var(--primary);color:#fff;font-size:14px;border:1px solid rgba(255,255,255,.15);border-radius:6px;padding:8px 18px;transition:all .25s}
.btn-demo:hover{background:var(--primary-light);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(201,155,74,.18)}
.nav-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:6px;color:#fff;font-size:18px;padding:4px 10px;cursor:pointer}
.header-nav{background:#fff;border-bottom:1px solid var(--border-color)}
.header-nav-inner{display:flex;align-items:center;gap:20px;min-height:40px}
.nav-channels{display:flex;list-style:none;margin:0;padding:0;gap:4px;flex-wrap:nowrap}
.nav-channels a{display:block;padding:8px 16px;font-size:15px;color:var(--text-dark);font-weight:500;border-radius:6px 6px 0 0;position:relative;transition:color .2s,background .2s}
.nav-channels a::after{content:'';position:absolute;left:16px;right:16px;bottom:-1px;height:2px;background:var(--accent);border-radius:2px;opacity:0;transform:scaleX(.4);transition:all .25s}
.nav-channels a:hover{color:var(--primary);background:#f5f9f7}
.nav-channels a.active{color:var(--primary)}
.nav-channels a.active::after{opacity:1;transform:scaleX(1)}
.nav-hotwords{margin-left:auto;font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-hotwords a{color:var(--text-muted);padding:2px 6px;border-radius:999px}
.nav-hotwords a:hover{color:var(--primary);background:rgba(31,95,79,.06)}
.mobile-nav{display:none;background:#fff;border-bottom:1px solid var(--border-color);padding:8px 0;position:absolute;top:100%;left:0;right:0;box-shadow:0 12px 24px rgba(20,59,49,.12)}
.mobile-nav.open{display:block}
.mobile-nav-list{display:flex;flex-direction:column;gap:4px}
.mobile-nav-list a{display:block;padding:10px 16px;font-size:15px;color:var(--text-dark);border-radius:6px}
.mobile-nav-list a:hover,.mobile-nav-list a.active{background:rgba(31,95,79,.06);color:var(--primary)}
.site-header.scrolled .header-top{padding:4px 0}
.site-header.scrolled .brand-icon{width:30px;height:30px;font-size:14px}
.site-header.scrolled .header-search{flex-basis:200px}
.site-header.scrolled .nav-hotwords{display:none}
.site-header.scrolled .header-nav-inner{min-height:36px}

.breadcrumb-wrap{padding:20px 0;background:linear-gradient(135deg,rgba(20,59,49,.95),rgba(31,95,79,.88)),url('/assets/images/backpic/back-2.webp') center/cover;color:rgba(255,255,255,.85);border-bottom:3px solid var(--accent)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin:0;padding:0;list-style:none;font-size:14px}
.breadcrumb a{color:rgba(255,255,255,.7)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .active{color:#fff}
.breadcrumb li+li::before{content:'/';margin:0 8px;color:rgba(255,255,255,.5)}

.article-main{padding:48px 0 64px}
.article-card{background:#fff;border:1px solid var(--border-color);border-radius:8px;padding:40px;box-shadow:var(--shadow-card)}
.article-header h1{font-size:32px;margin-bottom:16px;word-break:break-word}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-muted);margin-bottom:20px}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:4px}
.badge-category{background:rgba(31,95,79,.08);color:var(--primary);padding:3px 12px;border-radius:999px;font-size:13px;font-weight:500}
.article-summary{background:var(--bg-soft);border-left:3px solid var(--primary);padding:18px 22px;border-radius:0 6px 6px 0;margin-bottom:28px}
.article-summary p{margin:0;font-size:15px;color:var(--text-dark);line-height:1.8}
.article-cover{margin-bottom:28px}
.article-cover img{width:100%;border-radius:4px}
.article-cover figcaption{text-align:center;font-size:14px;color:var(--text-muted);margin-top:10px}
.article-empty{text-align:center;padding:80px 0}
.article-empty h2{font-size:24px}
.article-empty p{color:var(--text-muted)}

.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--text-body)}
.article-body h2{font-size:28px;margin-top:48px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}
.article-body h3{font-size:22px;margin-top:32px;margin-bottom:12px}
.article-body h4{font-size:18px;margin-top:24px;margin-bottom:10px}
.article-body p{margin-bottom:20px}
.article-body blockquote{margin:28px 0;padding:18px 24px;background:var(--bg-muted);border-left:3px solid var(--accent);color:var(--text-body);font-style:italic;border-radius:0 6px 6px 0}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body li{margin-bottom:8px}
.article-body table{width:100%;margin:28px 0;border-collapse:collapse}
.article-body th{background:var(--primary);color:#fff;font-weight:500;padding:12px 16px;border:1px solid var(--primary);text-align:left}
.article-body td{padding:10px 16px;border:1px solid var(--border-color)}
.article-body tr:nth-child(even) td{background:var(--bg-muted)}
.article-body img{border-radius:4px;margin:24px 0}
.article-body pre{background:#1F2A26;color:#e8e6e1;padding:18px 22px;border-radius:8px;overflow-x:auto;margin:24px 0}
.article-body code{font-family:SFMono-Regular,Consolas,monospace;font-size:.9em}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body a{text-decoration:underline;text-underline-offset:4px}

.article-footer{border-top:1px solid var(--border-color);padding-top:24px;margin-top:36px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px}
.article-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;gap:4px;background:rgba(31,95,79,.06);color:var(--primary);font-size:13px;padding:4px 12px;border-radius:999px}
.article-share{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-muted)}
.article-share a{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--border-color);border-radius:50%;color:var(--text-body);transition:all .25s}
.article-share a:hover{border-color:var(--primary);color:var(--primary);background:rgba(31,95,79,.04)}

.related-section{padding:64px 0;background:var(--bg-page)}
.section-head{margin-bottom:32px;display:flex;justify-content:space-between;align-items:baseline}
.section-head h2{font-size:28px;margin:0}
.section-head .section-link{font-size:14px;color:var(--text-muted)}
.news-card{background:#fff;border:1px solid var(--border-color);border-radius:8px;overflow:hidden;display:flex;flex-direction:row;transition:all .3s ease;height:100%}
.news-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.news-card-img{flex:0 0 150px;overflow:hidden}
.news-card-img img{width:100%;height:100%;object-fit:cover;display:block}
.news-card-body{padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.news-card-body h3{font-size:16px;margin:0;line-height:1.5}
.news-card-body p{font-size:14px;color:var(--text-muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);margin-top:auto}
.news-card-meta .news-badge{background:rgba(31,95,79,.08);color:var(--primary);font-size:12px;padding:2px 10px;border-radius:999px;font-weight:500}
.news-card.wide .news-card-img{flex-basis:220px}

.post-nav-wrap{padding:0 0 64px}
.post-nav{display:flex;justify-content:space-between;gap:16px}
.post-nav a{display:block;padding:16px 20px;border:1px solid var(--border-color);border-radius:8px;background:#fff;transition:all .25s;color:var(--text-dark);flex:1;max-width:360px}
.post-nav a:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-hover)}
.post-nav span{display:block;font-size:13px;color:var(--text-muted)}
.post-nav strong{display:block;font-size:15px;font-weight:500;margin-top:4px}
.post-nav .next{border-left:3px solid var(--accent);text-align:right;margin-left:auto}

.cta-section{background:var(--primary-dark);padding:72px 0;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover;opacity:.08;pointer-events:none}
.cta-section .container{position:relative;z-index:1}
.cta-section h2{color:#fff;font-size:31px;margin-bottom:14px}
.cta-section p{color:rgba(255,255,255,.82);font-size:15px}
.cta-features{list-style:none;padding:0;margin:16px 0 0}
.cta-features li{color:rgba(255,255,255,.9);padding:6px 0;font-size:15px}
.cta-features i{color:var(--accent);margin-right:8px}
.cta-form-card{background:#fff;border-radius:8px;padding:32px;box-shadow:var(--shadow-hover)}
.form-note{font-size:13px;color:var(--text-muted);margin:8px 0 0}
.cta-form .btn-primary{width:100%}

.floating-cta{position:fixed;right:24px;bottom:80px;z-index:1040;width:56px;height:56px;background:var(--accent);color:var(--primary-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 6px 20px rgba(201,155,74,.35);transition:all .3s ease}
.floating-cta span{position:absolute;right:62px;top:50%;transform:translateY(-50%);background:var(--primary-dark);color:#fff;font-size:12px;padding:4px 10px;border-radius:6px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s}
.floating-cta:hover{width:64px;height:64px;color:var(--primary-dark)}
.floating-cta:hover span{opacity:1}
.floating-cta.fade-out{opacity:0;pointer-events:none}

.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.82);padding-top:64px}
.site-footer h3{color:#fff;font-size:20px;margin-bottom:8px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{padding:4px 0}
.site-footer ul a{color:rgba(255,255,255,.75);font-size:14px}
.site-footer ul a:hover{color:var(--accent)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.65);margin:12px 0 16px}
.brand-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.08);padding:6px 14px;border-radius:999px;font-size:13px;color:rgba(255,255,255,.85)}
.footer-contact li{color:rgba(255,255,255,.75);font-size:14px;padding:4px 0}
.footer-contact i{color:var(--accent);margin-right:8px}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:13px;color:rgba(255,255,255,.55)}

@media (max-width:991.98px){
  .header-search{flex-basis:220px}
  .news-card-img{flex-basis:120px}
  .article-card{padding:28px}
  .article-header h1{font-size:28px}
  .cta-section{padding:56px 0}
}
@media (max-width:767.98px){
  .header-search{display:none!important}
  .nav-toggle{display:inline-block}
  .header-nav{display:none}
  .header-top{padding:10px 0}
  .header-actions{gap:10px}
  .btn-demo{padding:7px 14px;font-size:13px}
  .article-main{padding:24px 0 40px}
  .article-card{padding:20px}
  .article-header h1{font-size:24px}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:20px}
  .breadcrumb-wrap{padding:14px 0}
  .related-section{padding:40px 0}
  .news-card{flex-direction:column}
  .news-card-img{flex:0 0 auto;height:160px}
  .news-card-img img{height:100%}
  .post-nav{flex-direction:column}
  .post-nav a{max-width:none}
  .cta-section{padding:44px 0}
  .cta-form-card{padding:22px}
  .floating-cta{right:16px;bottom:64px;width:48px;height:48px;font-size:18px}
  .floating-cta span{display:none}
  .section-head h2{font-size:24px}
  .site-footer{padding-top:40px}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  .brand-icon{width:30px;height:30px;font-size:14px}
  .header-actions .login-link{display:none}
  .article-summary{padding:14px 16px}
  .article-card{padding:16px}
  .article-tags,.article-share{width:100%}
}