/* roulang page: index */
:root {
  --primary: #00B26A;
  --primary-dark: #007A48;
  --primary-light: #00D487;
  --accent: #FF6A00;
  --accent-hover: #FF8A3D;
  --accent-dark: #E05A00;
  --bg: #F2F7F4;
  --card: #FFFFFF;
  --dark: #0B1F17;
  --text: #16261F;
  --text-secondary: #5B6F66;
  --border: #E3ECE7;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(11,31,23,.08);
  --shadow-hover: 0 16px 40px rgba(11,31,23,.12);
  --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", "PingFang SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 15px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-head.left { text-align: left; }
.section-tag {
  display: inline-block;
  background: rgba(0, 178, 106, .1);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 36px; font-weight: 700; line-height: 1.3; color: var(--text); margin-bottom: 14px; }
.section-head p { font-size: 17px; color: var(--text-secondary); max-width: 640px; margin: 0 auto; line-height: 1.75; }
.section-head.left p { margin-left: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  transition: all .3s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,178,106,.25); }
.btn-accent { background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: #fff; }
.btn-accent:hover { background: linear-gradient(135deg, var(--accent-dark), var(--accent)); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(255,106,0,.28); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary-dark); font-weight: 600; font-size: 15px; }
.text-link i { transition: transform .25s ease; }
.text-link:hover { color: var(--accent); }
.text-link:hover i { transform: translateX(4px); }
.section-padding { padding: 96px 0; }

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 76px;
  background: transparent;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(255,255,255,.96);
  border-bottom-color: rgba(227,236,231,.8);
  box-shadow: 0 4px 20px rgba(11,31,23,.06);
}
.site-header.scrolled .brand-text { color: var(--text); }
.site-header.scrolled .status-label { color: var(--text-secondary); }
.site-header.scrolled .nav-link { color: var(--text); }
.site-header.scrolled .nav-link:hover { color: var(--primary); }
.site-header.scrolled .nav-link.active { color: var(--primary-dark); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  box-shadow: 0 4px 14px rgba(0,178,106,.25);
}
.brand-text { font-size: 20px; font-weight: 700; color: #fff; line-height: 1.2; display: flex; align-items: center; gap: 10px; transition: color .3s ease; }
.brand-status { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 500; background: rgba(0,178,106,.16); color: #d9ffe9; padding: 3px 10px; border-radius: 999px; line-height: 1.4; }
.site-header.scrolled .brand-status { color: var(--primary-dark); background: rgba(0,178,106,.1); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: #00d487; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,212,135,.5); } 50% { opacity: .7; box-shadow: 0 0 0 6px rgba(0,212,135,0); } }
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-link {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  border-radius: 999px;
  transition: all .25s ease;
  position: relative;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav-link.active { color: #fff; font-weight: 600; }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary-light);
}
.site-header.scrolled .nav-link.active { color: var(--primary-dark); }
.site-header.scrolled .nav-link.active::after { background: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 16px; margin-left: 24px; }
.header-actions .btn { padding: 10px 24px; font-size: 14px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; background: rgba(255,255,255,.1); color: #fff; font-size: 20px; align-items: center; justify-content: center; transition: background .25s ease; }
.site-header.scrolled .nav-toggle { color: var(--text); background: rgba(0,178,106,.1); }
.mobile-nav {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 0 0 20px 20px;
  box-shadow: 0 16px 40px rgba(11,31,23,.12);
  padding: 16px 24px 24px;
  display: none;
  flex-direction: column;
  gap: 4px;
  z-index: 99;
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-link { color: var(--text); padding: 12px 14px; border-radius: 12px; }
.mobile-nav .nav-link.active { background: rgba(0,178,106,.08); color: var(--primary-dark); font-weight: 600; }
.mobile-nav .nav-link.active::after { display: none; }
.mobile-nav .btn { margin-top: 12px; }

/* ========== Hero ========== */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 76px;
  position: relative;
  overflow: hidden;
  background-color: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,31,23,.88) 0%, rgba(0,122,72,.55) 60%, rgba(0,178,106,.3) 100%);
}
.hero-content { position: relative; z-index: 2; padding-top: 48px; padding-bottom: 72px; max-width: 720px; margin-left: 0; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  margin-bottom: 24px;
}
.hero-tag .fa { color: var(--primary-light); }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,.85);
  margin-bottom: 34px;
  max-width: 620px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: rgba(11,31,23,.55);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  backdrop-filter: blur(8px);
  margin-bottom: 48px;
}
.stat-item { text-align: center; padding: 8px 12px; }
.stat-num {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  display: block;
  letter-spacing: 1px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  margin-top: 8px;
  display: block;
}

/* ========== Services ========== */
.services { padding: 96px 0; }
.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 72px;
}
.service-row:last-child { margin-bottom: 0; }
.service-row.reverse .service-img { order: 2; }
.service-row.reverse .service-body { order: 1; }
.service-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e8f5ee, #f0faf5);
}
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.service-img:hover img { transform: scale(1.04); }
.service-body { padding: 8px 0; }
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(0,178,106,.2);
}
.service-body h3 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.service-body p { font-size: 16px; color: var(--text-secondary); line-height: 1.85; margin-bottom: 18px; }

/* ========== Stats Section ========== */
.stats-section {
  background: var(--dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,178,106,.18), transparent 70%);
}
.stats-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,135,.12), transparent 70%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
  z-index: 2;
}
.stats-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  transition: all .3s ease;
  backdrop-filter: blur(4px);
}
.stats-card:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(0,212,135,.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.2);
}
.stats-number {
  font-family: var(--font-num);
  font-size: 52px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1.15;
  display: block;
}
.stats-number small { font-size: 24px; font-weight: 700; }
.stats-label {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-top: 10px;
  display: block;
}

/* ========== Cases ========== */
.cases { padding: 96px 0; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.case-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s ease;
  box-shadow: var(--shadow-card);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.case-img { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #e8f5ee; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-label {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(11,31,23,.72);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.case-body { padding: 26px 28px 30px; }
.case-body h3 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.case-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin: 0; }

/* ========== Solutions ========== */
.solutions { padding: 96px 0; background: linear-gradient(180deg, #fff 0%, #f6faf7 100%); }
.solutions-wrap {
  display: grid;
  grid-template-columns: 38% 62%;
  gap: 56px;
  align-items: start;
}
.solutions-intro { position: sticky; top: 100px; }
.solutions-intro h2 { font-size: 36px; font-weight: 700; color: var(--text); line-height: 1.3; margin-bottom: 16px; }
.solutions-intro p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px; }
.solution-scenarios { margin-bottom: 28px; }
.solution-scenarios li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
  padding: 7px 0;
  font-weight: 500;
}
.solution-scenarios li i { color: var(--primary); font-size: 18px; }
.solutions-list { display: flex; flex-direction: column; gap: 20px; }
.solution-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 32px;
  transition: all .3s ease;
  box-shadow: 0 4px 16px rgba(11,31,23,.04);
}
.solution-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.solution-tags { display: flex; gap: 8px; margin-bottom: 12px; }
.solution-tags span {
  background: rgba(0,178,106,.1);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}
.solution-item h3 { font-size: 21px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.solution-item p { font-size: 15px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 14px; }

/* ========== News Section ========== */
.news-section { padding: 96px 0; }
.news-list { display: flex; flex-direction: column; gap: 28px; }
.news-featured {
  display: grid;
  grid-template-columns: 48% 52%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all .35s ease;
}
.news-featured:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--primary); }
.news-featured-img { aspect-ratio: 16/10; overflow: hidden; background: #e8f5ee; }
.news-featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-featured:hover .news-featured-img img { transform: scale(1.04); }
.news-featured-body { padding: 32px 34px; display: flex; flex-direction: column; justify-content: center; }
.news-cat {
  display: inline-block;
  background: rgba(0,178,106,.1);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 14px;
}
.news-featured-body h3 { font-size: 26px; font-weight: 700; line-height: 1.4; color: var(--text); margin-bottom: 12px; }
.news-featured-body h3 a { color: inherit; }
.news-featured-body h3 a:hover { color: var(--primary-dark); }
.news-featured-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.news-time { font-size: 14px; color: #8a9b92; }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.news-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover { border-color: var(--primary); box-shadow: var(--shadow-card); transform: translateY(-3px); }
.news-card h3 { font-size: 18px; font-weight: 700; line-height: 1.45; color: var(--text); margin-bottom: 8px; }
.news-card h3 a { color: inherit; }
.news-card h3 a:hover { color: var(--primary-dark); }
.news-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; flex: 1; }
.empty-state {
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 32px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 16px;
}
.empty-state i { font-size: 38px; color: #c4dbcf; display: block; margin-bottom: 14px; }

/* ========== FAQ ========== */
.faq-section { padding: 96px 0; background: linear-gradient(180deg, #f2f7f4 0%, #fff 100%); }
.faq-list { max-width: 840px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 24px;
  transition: all .3s ease;
}
.faq-item.open { border-color: var(--primary); box-shadow: 0 8px 28px rgba(0,178,106,.1); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  background: none;
  border: none;
}
.faq-question i {
  color: var(--primary);
  transition: transform .3s ease;
  font-size: 14px;
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 20px 0 0;
  border-top: 1px solid transparent;
}
.faq-item.open .faq-answer {
  max-height: 320px;
  padding: 16px 20px 22px 0;
  border-top-color: rgba(0,178,106,.2);
}
.faq-answer p { font-size: 15px; color: var(--text-secondary); line-height: 1.85; margin: 0; }

/* ========== Contact ========== */
.contact-section { padding: 96px 0; background: var(--dark); position: relative; overflow: hidden; }
.contact-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(0,178,106,.14), transparent 70%);
}
.contact-wrap {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 56px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 60px;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}
.contact-info h2 { font-size: 36px; font-weight: 700; color: var(--text); line-height: 1.3; margin-bottom: 16px; }
.contact-info > p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 28px; }
.contact-info ul { display: flex; flex-direction: column; gap: 16px; }
.contact-info ul li { display: flex; align-items: center; gap: 14px; font-size: 15px; color: var(--text); }
.contact-info ul li i {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(0,178,106,.1);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}
.contact-form { background: #f8fbf9; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 32px; }
.contact-form .form-row { margin-bottom: 18px; }
.contact-form label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  height: 48px;
  border: 1px solid #D5E2DB;
  border-radius: var(--radius-sm);
  padding: 0 16px;
  background: #fff;
  color: var(--text);
  transition: all .25s ease;
  outline: none;
}
.contact-form textarea { height: auto; padding: 12px 16px; resize: vertical; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,178,106,.15);
}
.contact-form .btn { margin-top: 6px; }

/* ========== Footer ========== */
.site-footer { background: #0A1812; color: rgba(255,255,255,.75); padding-top: 0; position: relative; }
.footer-top-line { height: 4px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 64px 0 48px;
}
.footer-brand .footer-logo { font-size: 24px; font-weight: 800; color: #fff; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.6); max-width: 260px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.65); line-height: 1.8; padding: 4px 0; }
.footer-col a:hover { color: var(--primary-light); }
.footer-col p { font-size: 14px; color: rgba(255,255,255,.65); line-height: 1.8; padding: 4px 0; margin: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .hero h1 { font-size: 40px; }
  .hero-stats { padding: 22px; }
  .stat-num { font-size: 44px; }
  .service-row { gap: 32px; }
  .solutions-wrap { grid-template-columns: 1fr; gap: 40px; }
  .solutions-intro { position: static; }
  .contact-wrap { grid-template-columns: 1fr; padding: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero { min-height: 80vh; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-num { font-size: 38px; }
  .service-row { grid-template-columns: 1fr; gap: 24px; }
  .service-row.reverse .service-img { order: 0; }
  .service-row.reverse .service-body { order: 1; }
  .cases-grid { grid-template-columns: 1fr; }
  .news-featured { grid-template-columns: 1fr; }
  .news-featured-img { aspect-ratio: 16/9; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .contact-wrap { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
  .section-head h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero { min-height: 70vh; }
  .hero-content { padding-top: 32px; }
  .hero h1 { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { gap: 8px; }
  .stats-card { padding: 24px 16px; }
  .stats-number { font-size: 32px; }
  .service-body h3 { font-size: 20px; }
  .case-body { padding: 20px; }
  .solution-item { padding: 24px; }
  .contact-form { padding: 24px 20px; }
}

/* roulang page: category1 */
:root {
  --primary: #00B26A;
  --primary-dark: #007A48;
  --primary-light: #00D487;
  --accent: #FF6A00;
  --accent-hover: #FF8A3D;
  --accent-dark: #E05A00;
  --bg: #F2F7F4;
  --surface: #FFFFFF;
  --dark: #0B1F17;
  --dark-soft: #123528;
  --text: #16261F;
  --text-secondary: #5B6F66;
  --border: #E3ECE7;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(11,31,23,.08);
  --shadow-hover: 0 16px 40px rgba(11,31,23,.12);
  --gradient-brand: 135deg, #00B26A, #00D487;
  --gradient-dark: 135deg, #0B1F17, #007A48;
  --gradient-cta: 135deg, #FF6A00, #FF8A3D;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", "PingFang SC", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color .25s ease;
}
a:hover {
  color: var(--primary-dark);
}
ul, ol {
  list-style: none;
}
input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(0,178,106,.35);
  outline-offset: 2px;
}
.section {
  padding: 96px 0;
}
.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(0,178,106,.1);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.section-head h2 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.section-head p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(var(--gradient-brand));
  color: #fff;
  box-shadow: 0 6px 20px rgba(0,178,106,.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,178,106,.4);
  color: #fff;
}
.btn-accent {
  background: linear-gradient(var(--gradient-cta));
  color: #fff;
  box-shadow: 0 6px 20px rgba(255,106,0,.3);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255,106,0,.4);
  color: #fff;
}
.btn-outline-light {
  background: transparent;
  border: 2px solid rgba(255,255,255,.7);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
  color: #fff;
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.btn-block {
  width: 100%;
}
.btn-sm {
  padding: 10px 24px;
  font-size: 14px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 76px;
  background: transparent;
  transition: background .35s ease, box-shadow .35s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(11,31,23,.08);
}
.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(var(--gradient-brand));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(0,178,106,.32);
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #fff;
  transition: color .35s ease;
}
.logo-text em {
  font-style: normal;
  color: var(--primary-light);
  font-weight: 700;
  margin-left: 2px;
}
.site-header.scrolled .logo-text {
  color: var(--text);
}
.site-header.scrolled .logo-text em {
  color: var(--primary);
}
.logo-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.3);
  padding: 2px 10px;
  border-radius: 999px;
  margin-left: 4px;
  line-height: 1.6;
}
.site-header.scrolled .logo-tag {
  background: rgba(0,178,106,.1);
  border-color: rgba(0,178,106,.25);
  color: var(--primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0 auto;
  padding: 0 32px;
}
.main-nav .nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  text-decoration: none;
  padding: 8px 2px;
  transition: color .3s ease;
}
.site-header.scrolled .main-nav .nav-link {
  color: var(--text);
}
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--primary-light);
  transform: translateX(-50%);
  transition: width .3s ease;
}
.main-nav .nav-link:hover {
  color: #fff;
}
.site-header.scrolled .main-nav .nav-link:hover {
  color: var(--primary);
}
.main-nav .nav-link.active {
  color: #fff;
  font-weight: 600;
}
.site-header.scrolled .main-nav .nav-link.active {
  color: var(--primary);
}
.main-nav .nav-link.active::after {
  width: 20px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  padding: 5px 14px;
  border-radius: 999px;
}
.site-header.scrolled .status-pill {
  color: var(--text-secondary);
  background: rgba(0,178,106,.08);
  border-color: rgba(0,178,106,.18);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
  box-shadow: 0 0 0 0 rgba(0,212,135,.6);
  animation: pulse-dot 2s infinite;
}
.site-header.scrolled .status-dot {
  background: var(--primary);
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(0,212,135,.5); }
  70% { box-shadow: 0 0 0 8px rgba(0,212,135,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,212,135,0); }
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle i {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all .3s ease;
}
.site-header.scrolled .nav-toggle i {
  background: var(--text);
}
.nav-toggle.open i:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open i:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open i:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-panel {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: rgba(11,31,23,.98);
  backdrop-filter: blur(16px);
  padding: 24px;
  border-bottom: 1px solid rgba(0,178,106,.25);
  z-index: 199;
  transform: translateY(-100%);
  transition: transform .35s ease;
}
.mobile-panel.open {
  transform: translateY(0);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav .nav-link {
  display: block;
  padding: 14px 12px;
  font-size: 16px;
  color: rgba(255,255,255,.85);
  border-radius: var(--radius-sm);
  transition: background .25s ease;
}
.mobile-nav .nav-link:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.mobile-nav .nav-link.active {
  color: var(--primary-light);
  background: rgba(0,178,106,.1);
  font-weight: 600;
}
.mobile-actions {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.mobile-actions .btn {
  width: 100%;
}

/* ===== Cat Hero ===== */
.cat-hero {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: center;
  background: var(--dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 140px 0 72px;
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,31,23,.93) 0%, rgba(0,122,72,.82) 100%);
  z-index: 1;
}
.cat-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.6);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255,255,255,.75);
  text-decoration: none;
  transition: color .25s ease;
}
.breadcrumb a:hover {
  color: var(--primary-light);
}
.breadcrumb .current {
  color: var(--primary-light);
  font-weight: 500;
}
.breadcrumb i {
  font-size: 12px;
  color: rgba(255,255,255,.35);
}
.cat-hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.cat-hero-desc {
  font-size: 18px;
  line-height: 1.85;
  color: rgba(255,255,255,.85);
  max-width: 640px;
  margin-bottom: 32px;
}
.cat-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.cat-hero-badge-row {
  display: flex;
  gap: 24px;
  margin-top: 52px;
  flex-wrap: wrap;
}
.hero-badge {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-md);
  padding: 18px 28px;
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 130px;
}
.hero-badge .b-num {
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.hero-badge .b-label {
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
}

/* ===== Service Grid Cards ===== */
.service-section {
  background: var(--bg);
}
.service-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.service-card:nth-child(even) {
  margin-top: 48px;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.service-card-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background: #e8f2ec;
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.service-card:hover .service-card-img img {
  transform: scale(1.05);
}
.service-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,31,23,.3));
  opacity: 0;
  transition: opacity .35s ease;
}
.service-card:hover .service-card-img::after {
  opacity: 1;
}
.service-card-body {
  padding: 28px 28px 32px;
  flex: 1;
}
.service-card-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}
.service-card-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}
.card-link i {
  font-size: 13px;
  transition: transform .3s ease;
}
.card-link:hover {
  color: var(--primary-dark);
}
.card-link:hover i {
  transform: translateX(4px);
}

/* ===== Stats ===== */
.stats-section {
  background: var(--dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  position: relative;
}
.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,31,23,.96), rgba(0,122,72,.88));
}
.stats-section .container {
  position: relative;
  z-index: 2;
}
.stats-section .section-head h2 {
  color: #fff;
}
.stats-section .section-head p {
  color: rgba(255,255,255,.65);
}
.stats-section .section-tag {
  background: rgba(255,255,255,.1);
  color: var(--primary-light);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  transition: background .3s ease, border-color .3s ease, transform .3s ease;
}
.stat-card:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(0,212,135,.4);
  transform: translateY(-4px);
}
.stat-num {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(var(--gradient-brand));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-num span {
  font-size: 32px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  margin-top: 10px;
}

/* ===== Scenario Section ===== */
.scenario-section {
  background: var(--surface);
}
.scenario-layout {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 64px;
  align-items: center;
}
.scenario-text h3 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 20px;
}
.scenario-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.scenario-list {
  margin-bottom: 32px;
}
.scenario-list li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 16px;
  color: var(--text);
  align-items: flex-start;
}
.scenario-list li:last-child {
  border-bottom: none;
}
.scenario-list .s-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(0,178,106,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.scenario-list .s-text strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
}
.scenario-list .s-text span {
  font-size: 14px;
  color: var(--text-secondary);
}
.scenario-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.scenario-visual img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}
.scenario-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11,31,23,.72));
  z-index: 1;
}
.scenario-cap {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 24px;
  z-index: 2;
  color: #fff;
}
.scenario-cap strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.scenario-cap span {
  font-size: 14px;
  color: rgba(255,255,255,.75);
}

/* ===== Process ===== */
.process-section {
  background: var(--bg);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px 30px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.process-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.process-num {
  font-family: var(--font-num);
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(var(--gradient-brand));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 18px;
  opacity: .9;
}
.process-item h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.process-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}
.process-arrow {
  position: absolute;
  top: 50%;
  right: -20px;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 18px;
  z-index: 3;
}
.process-item:last-child .process-arrow {
  display: none;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--surface);
}
.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
}
.accordion {
  list-style: none;
  margin: 0;
  padding: 0;
}
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.accordion-item:hover {
  border-color: var(--primary);
}
.accordion-item.is-active {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(0,178,106,.1);
  background: #fafffc;
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text) !important;
  line-height: 1.5;
  cursor: pointer;
  position: relative;
  text-decoration: none;
  background: transparent;
  border: none;
  transition: color .3s ease;
}
.accordion-title::before {
  content: "\f107";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 18px;
  color: var(--primary);
  transition: transform .35s ease;
  flex-shrink: 0;
}
.accordion-item.is-active .accordion-title::before {
  transform: rotate(180deg);
}
.accordion-title:hover {
  color: var(--primary) !important;
}
.accordion-content {
  padding: 0 28px 24px;
  border-top: 1px solid transparent;
}
.accordion-item.is-active .accordion-content {
  border-top-color: rgba(0,178,106,.15);
}
.accordion-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

/* ===== Contact / CTA ===== */
.contact-section {
  background: var(--dark) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position: relative;
}
.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,31,23,.96), rgba(0,122,72,.9));
}
.contact-section .container {
  position: relative;
  z-index: 2;
}
.contact-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-lg);
  padding: 56px;
  backdrop-filter: blur(8px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-info h3 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 14px;
}
.contact-info > p {
  font-size: 16px;
  color: rgba(255,255,255,.7);
  margin-bottom: 32px;
  line-height: 1.8;
}
.contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-item .ci-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0,212,135,.15);
  border: 1px solid rgba(0,212,135,.25);
  color: var(--primary-light);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item .ci-content strong {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.55);
  font-weight: 500;
  margin-bottom: 2px;
}
.contact-item .ci-content span {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}
.contact-form {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.contact-form h4 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.contact-form .form-sub {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  margin-bottom: 24px;
}
.form-row {
  margin-bottom: 18px;
}
.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,.85);
  margin-bottom: 8px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color .3s ease, background .3s ease, box-shadow .3s ease;
}
.form-row input::placeholder,
.form-row textarea::placeholder {
  color: rgba(255,255,255,.35);
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--primary-light);
  background: rgba(255,255,255,.14);
  box-shadow: 0 0 0 3px rgba(0,212,135,.18);
}
.form-row textarea {
  resize: vertical;
  min-height: 110px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 72px 0 0;
}
.footer-top-line {
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), #FF8A3D);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: 14px;
}
.footer-logo span {
  color: var(--primary-light);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.55);
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  padding: 5px 0;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-col a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.6);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .header-right .status-pill {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-panel {
    display: block;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .process-arrow {
    display: none;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .scenario-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .scenario-visual img {
    height: 360px;
  }
  .contact-card {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .cat-hero {
    min-height: auto;
    padding: 120px 0 56px;
  }
  .cat-hero h1 {
    font-size: 34px;
  }
  .cat-hero-desc {
    font-size: 16px;
  }
  .cat-hero-badge-row {
    gap: 12px;
    margin-top: 36px;
  }
  .hero-badge {
    padding: 14px 18px;
    min-width: calc(50% - 6px);
  }
  .hero-badge .b-num {
    font-size: 26px;
  }
  .service-cards-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .service-card:nth-child(even) {
    margin-top: 0;
  }
  .stats-grid {
    gap: 16px;
  }
  .stat-card {
    padding: 24px 16px;
  }
  .stat-num {
    font-size: 36px;
  }
  .stat-num span {
    font-size: 22px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .process-item {
    padding: 28px 22px;
  }
  .contact-card {
    padding: 28px 20px;
  }
  .contact-form {
    padding: 24px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .btn {
    padding: 13px 26px;
    font-size: 14px;
  }
  .cat-hero-btns {
    flex-direction: column;
    align-items: stretch;
  }
  .cat-hero-btns .btn {
    width: 100%;
  }
  .accordion-title {
    padding: 18px 20px;
    font-size: 15px;
  }
  .accordion-content {
    padding: 0 20px 20px;
  }
}

/* roulang page: article */
:root {
  --primary: #00B26A;
  --primary-dark: #007A48;
  --primary-light: #00D487;
  --accent: #FF6A00;
  --accent-hover: #FF8A3D;
  --bg: #F2F7F4;
  --card: #FFFFFF;
  --dark: #0B1F17;
  --text: #16261F;
  --text-weak: #5B6F66;
  --border: #E3ECE7;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(11,31,23,.08);
  --shadow-hover: 0 16px 40px rgba(11,31,23,.12);
  --grad-brand: 135deg, #00B26A, #00D487;
  --grad-dark: 135deg, #0B1F17, #007A48;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: all .3s; }
img { max-width: 100%; height: auto; display: block; border: 0; }
button { font-family: inherit; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(0,178,106,.4); outline-offset: 2px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; font-weight: 700; font-size: 15px; padding: 14px 32px; border: none; cursor: pointer; transition: all .35s; line-height: 1.4; }
.btn-primary { background: linear-gradient(var(--grad-brand)); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0,178,106,.35); }
.btn-accent { background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: #fff; }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,106,0,.35); }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,.85); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.15); border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-block { width: 100%; }
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); height: 76px; display: flex; align-items: center; box-shadow: 0 4px 20px rgba(11,31,23,.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; width: 100%; }
.logo { font-size: 26px; font-weight: 800; color: var(--primary-dark); display: inline-flex; align-items: center; gap: 10px; letter-spacing: .5px; line-height: 1.2; }
.logo-icon { width: 38px; height: 38px; border-radius: 12px; background: linear-gradient(var(--grad-brand)); display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 6px 16px rgba(0,178,106,.25); flex-shrink: 0; }
.logo-text { display: inline-flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 22px; font-weight: 800; color: var(--primary-dark); white-space: nowrap; }
.logo-text span { font-size: 11px; font-weight: 600; color: var(--text-weak); letter-spacing: 1px; margin-top: 2px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { padding: 10px 16px; font-size: 15px; font-weight: 500; color: var(--text); border-radius: 10px; position: relative; transition: all .3s; white-space: nowrap; }
.nav-link:hover { color: var(--primary); background: rgba(0,178,106,.07); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 3px; background: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.status-badge { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600; color: var(--primary-dark); background: rgba(0,178,106,.1); padding: 7px 14px; border-radius: 999px; white-space: nowrap; }
.status-badge i { font-size: 9px; color: var(--primary); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }
.hamburger { display: none; width: 46px; height: 46px; border-radius: 12px; background: rgba(0,178,106,.1); border: none; color: var(--primary-dark); font-size: 20px; cursor: pointer; align-items: center; justify-content: center; transition: all .3s; }
.hamburger:hover { background: rgba(0,178,106,.2); }
.article-banner { position: relative; min-height: 380px; display: flex; align-items: flex-end; padding: 72px 0 60px; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; }
.article-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,31,23,.94) 0%, rgba(0,122,72,.82) 100%); }
.banner-content { position: relative; z-index: 2; max-width: 880px; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: rgba(255,255,255,.85); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,.85); transition: color .3s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .55; font-size: 10px; display: inline-flex; }
.breadcrumb .current { color: rgba(255,255,255,.95); font-weight: 500; }
.article-banner h1 { color: #fff; font-size: 44px; font-weight: 800; line-height: 1.3; margin-bottom: 18px; letter-spacing: .5px; text-shadow: 0 4px 20px rgba(0,0,0,.2); }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; color: rgba(255,255,255,.9); }
.meta-item { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); padding: 6px 16px; border-radius: 999px; backdrop-filter: blur(8px); }
.meta-item i { color: var(--primary-light); }
.article-main { padding-bottom: 40px; }
.article-wrap { background: var(--card); border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-card); margin-top: -48px; position: relative; z-index: 5; padding: 48px 56px; }
.article-body { font-size: 17px; line-height: 1.8; color: var(--text); word-break: break-word; }
.article-body p { margin-bottom: 1.5em; }
.article-body h2 { font-size: 32px; font-weight: 700; margin: 1.5em 0 .8em; color: var(--text); line-height: 1.35; }
.article-body h3 { font-size: 24px; font-weight: 600; margin: 1.4em 0 .7em; color: var(--text); line-height: 1.4; }
.article-body h4 { font-size: 20px; font-weight: 600; margin: 1.2em 0 .6em; color: var(--text); line-height: 1.4; }
.article-body ul, .article-body ol { margin: 0 0 1.5em 1.6em; }
.article-body li { margin-bottom: .55em; }
.article-body li::marker { color: var(--primary); }
.article-body img { border-radius: var(--radius-md); margin: 28px auto; border: 1px solid var(--border); max-width: 100%; }
.article-body blockquote { border-left: 4px solid var(--primary); background: rgba(0,178,106,.07); border-radius: var(--radius-sm); padding: 22px 26px; margin: 28px 0; font-size: 16px; color: var(--text-weak); line-height: 1.8; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body a { color: var(--primary-dark); border-bottom: 1px solid rgba(0,178,106,.35); transition: all .3s; }
.article-body a:hover { color: var(--primary); border-color: var(--primary); }
.article-body table { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; border-collapse: collapse; margin: 28px 0; font-size: 15px; white-space: nowrap; }
.article-body th, .article-body td { padding: 13px 16px; border: 1px solid var(--border); text-align: left; }
.article-body th { background: rgba(0,178,106,.06); font-weight: 700; color: var(--dark); }
.article-body td { background: #fff; }
.article-body code { background: #F0F5F2; border-radius: 6px; padding: 2px 8px; font-size: .9em; color: var(--primary-dark); }
.article-empty { text-align: center; padding: 80px 30px; }
.article-empty i { font-size: 56px; color: var(--border); margin-bottom: 20px; display: block; }
.article-empty h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.article-empty p { color: var(--text-weak); margin-bottom: 28px; }
.article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-top: 28px; margin-top: 36px; border-top: 1px solid var(--border); }
.tag-label { font-size: 14px; font-weight: 600; color: var(--text-weak); }
.tag-pill { display: inline-block; background: rgba(0,178,106,.1); color: var(--primary-dark); border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 600; transition: all .3s; }
.tag-pill:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
.article-nav-links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--text-weak); padding: 10px 20px; border: 1px solid var(--border); border-radius: 999px; background: #fff; transition: all .3s; }
.back-link:hover { color: var(--primary); border-color: var(--primary); background: rgba(0,178,106,.04); transform: translateY(-2px); }
.related-section { padding: 80px 0; background: var(--bg); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-label { display: inline-block; background: rgba(0,178,106,.1); color: var(--primary-dark); font-weight: 700; font-size: 13px; padding: 6px 18px; border-radius: 999px; letter-spacing: .5px; margin-bottom: 16px; }
.section-head h2 { font-size: 36px; font-weight: 700; color: var(--text); margin-bottom: 14px; line-height: 1.3; }
.section-head p { font-size: 16px; color: var(--text-weak); line-height: 1.7; }
.related-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card { background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border); box-shadow: var(--shadow-card); padding: 24px; display: flex; flex-direction: column; gap: 12px; transition: all .35s; overflow: hidden; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(0,178,106,.45); }
.related-thumb { border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 6px; background: var(--border); }
.related-thumb img { width: 100%; height: 160px; object-fit: cover; transition: transform .5s; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-card .card-tag { align-self: flex-start; background: rgba(0,178,106,.1); color: var(--primary-dark); font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.related-card h3 { font-size: 19px; font-weight: 700; color: var(--text); line-height: 1.4; margin: 0; }
.related-card p { font-size: 14px; color: var(--text-weak); line-height: 1.75; flex: 1; margin: 0; }
.related-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary-dark); font-size: 14px; font-weight: 600; transition: all .3s; }
.related-card:hover .related-link { color: var(--primary); gap: 12px; }
.related-link i { transition: transform .3s; }
.related-card:hover .related-link i { transform: translateX(3px); }
.cta-section { padding: 20px 0 100px; background: var(--bg); }
.cta-card { background: linear-gradient(135deg, #0B1F17, #007A48); border-radius: var(--radius-lg); padding: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; color: #fff; box-shadow: 0 24px 70px rgba(0,122,72,.28); }
.cta-left h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.cta-left p { color: rgba(255,255,255,.85); line-height: 1.8; margin-bottom: 24px; font-size: 15px; }
.contact-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 30px; }
.contact-item { display: flex; align-items: center; gap: 14px; font-size: 15px; }
.contact-item i { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,.12); display: inline-flex; align-items: center; justify-content: center; color: var(--primary-light); flex-shrink: 0; font-size: 16px; }
.cta-right { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-md); padding: 34px; backdrop-filter: blur(10px); }
.cta-right h3 { font-size: 20px; font-weight: 700; margin-bottom: 24px; }
.contact-form .form-group { margin-bottom: 16px; }
.contact-form label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: rgba(255,255,255,.9); }
.contact-form input, .contact-form textarea { width: 100%; height: 48px; border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.96); padding: 0 16px; font-size: 15px; color: var(--text); transition: all .3s; }
.contact-form textarea { height: 110px; padding-top: 14px; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 4px rgba(0,212,135,.18); background: #fff; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #9DB3A8; }
.site-footer { background: var(--dark); color: rgba(255,255,255,.8); padding: 64px 0 0; }
.footer-top-line { height: 4px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-logo { font-size: 24px; font-weight: 800; color: #fff; display: inline-flex; align-items: center; gap: 10px; }
.footer-brand p { margin-top: 14px; font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.6); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,.65); transition: all .3s; }
.footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-col p { padding: 6px 0; font-size: 14px; color: rgba(255,255,255,.65); padding-left: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.45); }
@media (max-width: 1024px) {
  .article-wrap { padding: 40px 34px; }
  .related-list { grid-template-columns: repeat(2, 1fr); }
  .cta-card { grid-template-columns: 1fr; padding: 42px; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .status-badge { display: none; }
}
@media (max-width: 768px) {
  .main-nav { position: fixed; top: 76px; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 18px; width: 280px; border-radius: 0 0 0 24px; box-shadow: -12px 12px 40px rgba(0,0,0,.12); transform: translateX(100%); transition: transform .35s ease; z-index: 99; }
  .main-nav.open { transform: translateX(0); }
  .main-nav .nav-link { display: block; padding: 14px 18px; font-size: 16px; }
  .nav-link.active::after { display: none; }
  .hamburger { display: inline-flex; }
  .article-banner { min-height: 320px; padding: 56px 0 44px; }
  .article-banner h1 { font-size: 34px; }
  .article-wrap { margin-top: -32px; padding: 28px 20px; }
  .cta-card { padding: 30px 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .related-list { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 28px; }
  .cta-left h2 { font-size: 26px; }
}
@media (max-width: 520px) {
  .header-inner { gap: 10px; }
  .logo-text strong { font-size: 19px; }
  .logo-icon { width: 34px; height: 34px; font-size: 15px; }
  .article-banner h1 { font-size: 28px; }
  .article-meta { gap: 10px; }
  .meta-item { padding: 5px 12px; font-size: 13px; }
  .article-wrap { border-radius: var(--radius-md); padding: 24px 16px; }
  .article-body h2 { font-size: 26px; }
  .article-body h3 { font-size: 21px; }
  .related-list { gap: 18px; }
}

/* roulang page: category2 */
:root {
  --primary: #00B26A;
  --primary-dark: #007A48;
  --primary-light: #00D487;
  --accent: #FF6A00;
  --accent-hover: #FF8A3D;
  --bg: #F2F7F4;
  --surface: #FFFFFF;
  --dark: #0B1F17;
  --text: #16261F;
  --text-muted: #5B6F66;
  --border: #E3ECE7;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(11,31,23,.08);
  --shadow-hover: 0 16px 40px rgba(11,31,23,.12);
  --gradient-main: 135deg, #00B26A, #00D487;
  --gradient-dark: 135deg, #0B1F17, #007A48;
  --gradient-cta: 135deg, #FF6A00, #FF8A3D;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .25s ease; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
ul, ol { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.row .columns { padding-left: 16px; padding-right: 16px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: all .3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  line-height: 1;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(var(--gradient-main)); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,178,106,.35); color: #fff; }
.btn-accent { background: linear-gradient(var(--gradient-cta)); color: #fff; }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,106,0,.35); background: linear-gradient(135deg, #FF8A3D, #FF6A00); color: #fff; }
.btn-outline-light { border-color: rgba(255,255,255,.6); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ========== Header / 导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 76px;
  background: linear-gradient(180deg, rgba(11,31,23,.55), transparent);
  transition: background .35s ease, box-shadow .35s ease;
}
.site-header.header-scrolled {
  background: rgba(255,255,255,.96);
  box-shadow: 0 4px 24px rgba(11,31,23,.08);
}
.nav-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: linear-gradient(var(--gradient-main));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(0,178,106,.3);
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .02em;
  transition: color .35s ease;
}
.brand-text em { font-style: normal; color: var(--primary-light); }
.brand-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: rgba(255,255,255,.14);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.2);
  transition: all .35s ease;
}
.brand-status i { font-size: 8px; color: #00D487; }
.header-scrolled .brand-text { color: var(--text); }
.header-scrolled .brand-text em { color: var(--primary-dark); }
.header-scrolled .brand-status { background: rgba(0,178,106,.1); border-color: rgba(0,178,106,.2); color: var(--primary-dark); }
.header-scrolled .brand-status i { color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  padding: 8px 14px;
  border-radius: 8px;
  position: relative;
  transition: color .3s, background .3s;
}
.main-nav .nav-link:hover { color: #fff; background: rgba(255,255,255,.1); }
.main-nav .nav-link.active { color: #fff; font-weight: 600; }
.main-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 6px; height: 6px;
  background: var(--primary-light);
  border-radius: 50%;
}
.header-scrolled .main-nav .nav-link { color: var(--text); }
.header-scrolled .main-nav .nav-link:hover { color: var(--primary-dark); background: rgba(0,178,106,.08); }
.header-scrolled .main-nav .nav-link.active { color: var(--primary-dark); }
.header-scrolled .main-nav .nav-link.active::after { background: var(--primary); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: linear-gradient(var(--gradient-cta));
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  margin-left: 14px;
  transition: all .3s;
  border: none;
  cursor: pointer;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255,106,0,.4); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: rgba(255,255,255,.12);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  padding: 10px;
  z-index: 1002;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.header-scrolled .nav-toggle span { background: var(--text); }
.nav-toggle.toggle-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.toggle-active span:nth-child(2) { opacity: 0; }
.nav-toggle.toggle-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== 栏目 Banner ========== */
.cat-banner {
  position: relative;
  min-height: 480px;
  padding: 170px 0 80px;
  background: linear-gradient(130deg, rgba(11,31,23,.94), rgba(0,122,72,.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  display: flex;
  align-items: center;
}
.cat-banner .container { width: 100%; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.65);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,.8); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }
.cat-banner h1 {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 18px;
  line-height: 1.2;
}
.cat-banner .banner-desc {
  font-size: 18px;
  line-height: 1.8;
  max-width: 720px;
  color: rgba(255,255,255,.9);
  margin-bottom: 36px;
}
.banner-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.stat-item {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius-md);
  padding: 18px 26px;
  backdrop-filter: blur(6px);
  min-width: 145px;
  text-align: left;
}
.stat-item strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  font-family: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}
.stat-item span {
  font-size: 14px;
  color: rgba(255,255,255,.72);
  margin-top: 4px;
  display: block;
}

/* ========== 主内容区 ========== */
.cat2-main { padding: 72px 0 40px; }

.cat2-layout { display: flex; }
.cat2-layout > .columns { padding-bottom: 40px; }

/* 侧边栏 */
.sidebar-inner {
  position: sticky;
  top: 96px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  box-shadow: var(--shadow-card);
}
.sidebar-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: .08em;
  margin-bottom: 16px;
  padding: 0 6px;
}
.anchors {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.anchor-link {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-left: 3px solid transparent;
  transition: all .25s ease;
  line-height: 1.4;
}
.anchor-link:hover { background: var(--bg); color: var(--primary-dark); }
.anchor-link.active {
  background: rgba(0,178,106,.08);
  border-left-color: var(--primary);
  color: var(--primary-dark);
  font-weight: 600;
}
.sidebar-contact {
  margin-top: 24px;
  padding: 22px 14px 6px;
  border-top: 1px dashed var(--border);
}
.sidebar-contact p { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.sidebar-contact strong {
  font-size: 22px;
  color: var(--text);
  font-family: "DIN Alternate", "Bahnschrift", sans-serif;
  letter-spacing: .02em;
  display: block;
  margin-bottom: 14px;
}

/* 内容区 */
.cat2-content .content-section { margin-bottom: 72px; }
.section-tag {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(0,178,106,.1);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: .06em;
}
.content-section h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 20px;
}
.content-section p {
  font-size: 17px;
  line-height: 1.8;
  color: #32453c;
  margin-bottom: 16px;
}
.content-section .lead {
  font-size: 19px;
  color: var(--text);
  margin-bottom: 28px;
}
.overview-row { margin-top: 28px; align-items: center; }

.content-figure {
  position: relative;
  background: #e9f2ec;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.content-figure::before {
  content: '必一运动b官网 · 活动实景';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a9c0b4;
  font-size: 14px;
  letter-spacing: .06em;
  z-index: 0;
}
.content-figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  min-height: 220px;
  object-fit: cover;
  display: block;
}

.check-list { margin: 20px 0 0; padding: 0; list-style: none; }
.check-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 14px;
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
}
.check-list li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 3px;
  color: var(--primary-dark);
  background: rgba(0,178,106,.12);
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

/* 方案模块卡片 */
.modules-grid { margin-top: 10px; }
.modules-grid .module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  height: 100%;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.modules-grid .module-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.module-icon {
  width: 50px; height: 50px;
  background: linear-gradient(var(--gradient-main));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  margin-bottom: 18px;
}
.module-card h3 { font-size: 19px; font-weight: 600; color: var(--text); margin-bottom: 10px; }
.module-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 0; }

/* 适用场景 */
.scenarios-row { margin-top: 24px; align-items: center; }
.scenario-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.scenario-item:last-child { border-bottom: none; padding-bottom: 0; }
.scenario-icon {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  background: rgba(0,178,106,.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 18px;
}
.scenario-text h3 { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.scenario-text p { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin-bottom: 0; }

/* 实施流程 */
.process-list {
  position: relative;
  margin: 30px 0 0 6px;
}
.process-list::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-light), var(--primary-dark));
  border-radius: 2px;
}
.process-item {
  position: relative;
  padding: 0 0 38px 54px;
}
.process-item:last-child { padding-bottom: 0; }
.process-item::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 6px;
  width: 14px; height: 14px;
  background: var(--surface);
  border: 3px solid var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0,178,106,.14);
}
.process-title-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.process-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  font-family: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
  line-height: 1;
}
.process-title-row h3 { font-size: 19px; font-weight: 600; color: var(--text); margin-bottom: 0; }
.process-content p { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin-bottom: 0; }

/* FAQ */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item:last-child { margin-bottom: 0; }
.faq-item.faq-active {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color .3s;
  line-height: 1.5;
}
.faq-question:hover { color: var(--primary-dark); }
.faq-question i {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform .3s, color .3s;
  flex-shrink: 0;
}
.faq-item.faq-active .faq-question i {
  transform: rotate(180deg);
  color: var(--primary);
}
.faq-answer {
  display: none;
  padding: 0 24px 20px;
}
.faq-item.faq-active .faq-answer {
  display: block;
  border-top: 1px solid rgba(0,178,106,.2);
  padding-top: 16px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 0;
}

/* ========== CTA 区 ========== */
.cta-section { padding: 60px 0 90px; }
.cta-card {
  background: linear-gradient(135deg, #0B1F17, #007A48);
  border-radius: var(--radius-lg);
  padding: 52px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(0,212,135,.22), transparent 70%);
  border-radius: 50%;
}
.cta-card::after {
  content: '';
  position: absolute;
  left: 30%;
  top: -100px;
  width: 160px; height: 160px;
  background: radial-gradient(circle, rgba(255,106,0,.12), transparent 70%);
  border-radius: 50%;
}
.cta-left { position: relative; z-index: 1; flex: 1; }
.cta-left h2 { font-size: 32px; font-weight: 700; margin-bottom: 14px; line-height: 1.3; }
.cta-left p { color: rgba(255,255,255,.85); font-size: 16px; line-height: 1.7; margin-bottom: 24px; max-width: 480px; }
.cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-right {
  position: relative;
  z-index: 1;
  flex: 0 0 320px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: #fff;
  line-height: 1.4;
}
.cta-contact-item i {
  flex: 0 0 36px;
  width: 36px; height: 36px;
  background: rgba(255,255,255,.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary-light);
}

/* ========== 页脚 ========== */
.site-footer {
  background: #0B1F17;
  color: rgba(255,255,255,.75);
  padding: 70px 0 0;
  position: relative;
}
.footer-top-line {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #00B26A, #00D487, #FF6A00);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .02em;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.55);
  margin-top: 14px;
  max-width: 300px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.6);
  margin-bottom: 10px;
  line-height: 1.6;
}
.footer-col a:hover { color: var(--primary-light); }
.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
  margin-bottom: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  text-align: left;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .cat-banner h1 { font-size: 40px; }
  .content-section h2 { font-size: 29px; }
  .cta-card { flex-direction: column; align-items: flex-start; padding: 44px 40px; }
  .cta-right { flex: none; width: 100%; max-width: 480px; }
  .sidebar-inner { position: static; }
  .sidebar-inner .anchors { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .anchor-link { border-left: none; border-bottom: 2px solid transparent; border-radius: 8px; padding: 8px 14px; }
  .anchor-link.active { border-left: none; border-bottom-color: var(--primary); background: rgba(0,178,106,.08); }
  .sidebar-contact { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 76px;
    left: 16px;
    right: 16px;
    background: var(--surface);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 24px 48px rgba(11,31,23,.18);
    display: none;
    z-index: 1001;
    border: 1px solid var(--border);
  }
  .main-nav.nav-open { display: flex; }
  .main-nav .nav-link {
    padding: 14px 10px;
    margin: 0;
    border-bottom: 1px solid var(--border);
    color: var(--text) !important;
    border-radius: 0;
    font-size: 16px;
  }
  .main-nav .nav-link.active { color: var(--primary-dark) !important; font-weight: 700; }
  .main-nav .nav-link.active::after { display: none; }
  .main-nav .nav-cta { margin: 16px 0 0; text-align: center; }
  .cat-banner {
    min-height: 0;
    padding: 140px 0 56px;
  }
  .cat-banner h1 { font-size: 34px; }
  .cat-banner .banner-desc { font-size: 16px; }
  .banner-stats { gap: 12px; }
  .stat-item { flex: 1 1 calc(50% - 12px); min-width: 0; padding: 14px 18px; }
  .stat-item strong { font-size: 26px; }
  .cat2-main { padding: 48px 0 20px; }
  .cat2-content .content-section { margin-bottom: 56px; }
  .content-section h2 { font-size: 26px; }
  .cta-section { padding: 40px 0 64px; }
  .cta-card { padding: 36px 26px; }
  .cta-left h2 { font-size: 26px; }
  .process-item { padding-left: 44px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-bottom: 32px; }
  .footer-brand p { max-width: 100%; }
}

@media (max-width: 520px) {
  .brand-text { font-size: 18px; }
  .brand-status { display: none; }
  .cat-banner h1 { font-size: 30px; }
  .banner-stats { flex-direction: row; }
  .stat-item { flex: 1 1 calc(50% - 12px); }
  .modules-grid .module-card { padding: 24px 20px; }
  .cta-buttons .btn { width: 100%; }
  .cta-right { padding: 22px 18px; }
}