/* roulang page: index */
:root {
  --primary: #0A9E6C;
  --primary-dark: #0F8663;
  --primary-deep: #163C33;
  --accent: #FF9C42;
  --accent-light: #FFB36B;
  --bg: #F3F7F5;
  --white: #FFFFFF;
  --text-heading: #14231E;
  --text-body: #4F625B;
  --text-muted: #7E9088;
  --border: rgba(22, 51, 51, 0.08);
  --divider: rgba(22, 51, 51, 0.06);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 8px 24px rgba(10, 158, 108, 0.06);
  --shadow-md: 0 16px 40px rgba(10, 158, 108, 0.10);
  --shadow-hover: 0 12px 32px rgba(10, 158, 108, 0.14);
  --grad-main: linear-gradient(135deg, #0A9E6C 0%, #0E8A7F 100%);
  --grad-cta: linear-gradient(90deg, #FF9C42 0%, #FFB36B 100%);
  --transition: 0.3s ease;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input { font-family: inherit; }

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

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-head p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1.5;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 16px rgba(10, 158, 108, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(10, 158, 108, 0.35);
  transform: translateY(-2px);
  color: #fff;
}

.btn-primary:active { transform: scale(0.98); }

.btn-outline {
  border-color: rgba(10, 158, 108, 0.4);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(10, 158, 108, 0.08);
  border-color: var(--primary);
  color: var(--primary-dark);
}

.btn-large { padding: 16px 40px; font-size: 17px; border-radius: 12px; }

.btn-ghost {
  border-color: rgba(10, 158, 108, 0.3);
  color: var(--primary);
  background: transparent;
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition);
}

.btn-ghost:hover { background: rgba(10, 158, 108, 0.06); border-color: var(--primary); }

.btn-cta-orange {
  background: var(--grad-cta);
  color: #fff;
  padding: 16px 48px;
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(255, 156, 66, 0.3);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-cta-orange:hover {
  box-shadow: 0 10px 30px rgba(255, 156, 66, 0.45);
  transform: translateY(-2px);
  color: #fff;
  filter: brightness(1.03);
}

.btn-cta-orange:active { transform: scale(0.98); }

.btn-cta-orange:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--divider);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(22, 51, 51, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--grad-main);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(10, 158, 108, 0.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: 0.5px;
}

.brand-tag {
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: var(--grad-cta);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

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

.main-nav > ul {
  display: flex;
  gap: 28px;
  align-items: center;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 2px;
  position: relative;
  transition: color var(--transition);
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--grad-main);
  transition: width var(--transition);
}

.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.main-nav a.active::after { width: 100%; }

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.search-wrap { position: relative; }

.search-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: #F0F5F2;
  color: var(--text-body);
  font-size: 15px;
  transition: all var(--transition);
}

.search-toggle:hover { background: #E4EFE9; color: var(--primary); }

.search-panel {
  position: absolute;
  top: 50px;
  right: 0;
  width: 240px;
  background: #fff;
  border-radius: 14px;
  padding: 12px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  border: 1px solid var(--border);
}

.search-panel.open { opacity: 1; visibility: visible; transform: translateY(0); }

.search-panel input {
  width: 100%;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--bg);
  color: var(--text-heading);
  transition: border-color var(--transition);
}

.search-panel input:focus { outline: none; border-color: var(--primary); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  background: #fff;
  border-top: 1px solid var(--divider);
  padding: 16px 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.mobile-nav.open { max-height: 600px; }

.mobile-nav ul { display: flex; flex-direction: column; gap: 4px; }

.mobile-nav a {
  display: block;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 10px;
  transition: all var(--transition);
}

.mobile-nav a:hover, .mobile-nav a.active { background: #EAF5F0; color: var(--primary); }

.mobile-nav .mobile-search {
  padding: 12px 24px 4px;
}

.mobile-nav .mobile-search input {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--bg);
}

/* Hero */
.hero {
  padding: 150px 0 100px;
  background:
    radial-gradient(circle at 78% 30%, rgba(10, 158, 108, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 12% 85%, rgba(255, 156, 66, 0.06) 0%, transparent 40%),
    linear-gradient(160deg, #F7FBF9 0%, #F0F6F3 60%, #EAF4EF 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 70px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 158, 108, 0.1);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 26px;
}

.hero-badge i { font-size: 12px; }

.hero h1 {
  font-size: 52px;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 22px;
}

.hero h1 .highlight { color: var(--primary); }

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-body);
  margin-bottom: 34px;
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  flex-direction: column;
  padding: 10px 24px 10px 0;
  border-right: 1px solid var(--divider);
  margin-right: 24px;
}

.trust-item:last-child { border-right: none; margin-right: 0; }

.trust-item strong {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.2;
}

.trust-item span {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Hero Login Card */
.hero-visual { position: relative; }

.login-card {
  background: #fff;
  border: 1px solid rgba(10, 158, 108, 0.15);
  border-radius: var(--radius-lg);
  padding: 36px 36px 28px;
  box-shadow: var(--shadow-md);
  max-width: 460px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.login-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
}

.app-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--grad-main);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(10, 158, 108, 0.3);
}

.login-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-heading);
}

.login-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
  margin-top: 2px;
}

.login-form { display: flex; flex-direction: column; gap: 16px; }

.login-form input {
  height: 50px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 18px;
  font-size: 15px;
  background: #F7FAF8;
  color: var(--text-heading);
  transition: all var(--transition);
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(10, 158, 108, 0.1);
}

.login-form input::placeholder { color: #A8B6B0; }

.login-btn {
  height: 50px;
  border-radius: var(--radius-sm);
  background: var(--grad-cta);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 4px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(255, 156, 66, 0.3);
}

.login-btn:hover { filter: brightness(1.05); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255, 156, 66, 0.4); }

.login-card-foot {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--divider);
}

.float-badge {
  position: absolute;
  background: #fff;
  border: 1px solid rgba(10, 158, 108, 0.12);
  border-radius: 14px;
  padding: 12px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 3;
  animation: float 3s ease-in-out infinite;
}

.float-badge .badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
}

.float-badge .badge-icon.green { background: var(--grad-main); }
.float-badge .badge-icon.orange { background: var(--grad-cta); }

.float-badge .badge-num {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.1;
}

.float-badge .badge-label {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
}

.float-online { top: 30px; right: -10px; animation-delay: 0.5s; }
.float-speed { bottom: 40px; left: -20px; animation-delay: 1s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Pain Points */
.pain-points { padding: 110px 0; background: var(--bg); }

.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pain-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.pain-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity var(--transition);
}

.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.pain-card:hover::before { opacity: 1; }

.pain-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(10, 158, 108, 0.1);
  color: var(--primary);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pain-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 10px;
}

.pain-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Solution */
.solution { padding: 110px 0; background: #fff; }

.solution-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
  margin-bottom: 100px;
}

.solution-block:last-child { margin-bottom: 0; }

.solution-block.reverse .solution-image { order: 2; }
.solution-block.reverse .solution-content { order: 1; }

.solution-image { position: relative; }

.solution-image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.solution-image:hover img { transform: scale(1.02); }

.solution-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: #fff;
  border-radius: 12px;
  padding: 10px 18px;
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.solution-badge i { color: var(--accent); }

.solution-badge.left { right: auto; left: 20px; }

.solution-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(10, 158, 108, 0.1);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.solution-content h3 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.35;
  margin-bottom: 18px;
}

.solution-content > p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 22px;
}

.solution-list { display: flex; flex-direction: column; gap: 14px; }

.solution-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-body);
}

.solution-list li i {
  color: var(--primary);
  font-size: 15px;
  margin-top: 4px;
  flex-shrink: 0;
}

/* Data Section */
.data-section { padding: 40px 0 110px; background: var(--bg); }

.data-panel {
  background: var(--grad-main);
  border-radius: var(--radius-lg);
  padding: 70px 60px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.data-panel::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.data-panel::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

.data-item {
  text-align: center;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

.data-item + .data-item { border-left: 1px solid rgba(255, 255, 255, 0.18); }

.data-num {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 6px;
  display: block;
}

.data-unit {
  font-size: 20px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}

.data-label {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 6px;
  letter-spacing: 1px;
}

.data-bar {
  width: 100%;
  max-width: 160px;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.2);
  margin: 14px auto 0;
  overflow: hidden;
}

.data-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--grad-cta);
  width: 80%;
}

.data-item:nth-child(2) .data-bar-fill { width: 92%; }
.data-item:nth-child(3) .data-bar-fill { width: 85%; }

/* Testimonials */
.testimonials { padding: 110px 0; background: #fff; }

.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 32px;
  transition: all var(--transition);
}

.testimonial-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

.testimonial-stars {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 24px;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-main);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-avatar.orange { background: var(--grad-cta); }

.testimonial-name { font-size: 15px; font-weight: 600; color: var(--text-heading); }
.testimonial-role { font-size: 13px; color: var(--text-muted); }

/* News Section */
.news-section { padding: 110px 0; background: var(--bg); }

.news-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 40px;
}

.news-featured-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.news-featured-cover {
  height: 220px;
  background: linear-gradient(135deg, #E8F5EE 0%, #D4EBE3 100%);
  position: relative;
  overflow: hidden;
}

.news-featured-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-featured-body { padding: 26px; display: flex; flex-direction: column; flex: 1; }

.news-category-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(10, 158, 108, 0.1);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.news-featured-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-featured-summary {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
  flex: 1;
}

.news-read-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}

.news-read-more:hover { color: var(--primary-dark); gap: 12px; }

.news-list-side {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-list-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--divider);
  transition: background var(--transition);
}

.news-list-item:first-child { padding-top: 8px; }

.news-list-item:hover { background: rgba(243, 247, 245, 0.6); }

.news-list-date {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--text-muted);
  min-width: 88px;
  padding-top: 4px;
}

.news-list-info { flex: 1; min-width: 0; }

.news-list-cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255, 156, 66, 0.12);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 6px;
}

.news-list-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-heading);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
}

.news-list-info h4 a:hover { color: var(--primary); }

.news-list-info p {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-list-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #EDF5F1;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 8px;
  transition: all var(--transition);
}

.news-list-item:hover .news-list-arrow {
  background: var(--primary);
  color: #fff;
}

.news-empty {
  grid-column: 1 / -1;
  background: #fff;
  border: 1px dashed rgba(22, 51, 51, 0.15);
  border-radius: var(--radius-md);
  padding: 60px 40px;
  text-align: center;
}

.news-empty i {
  font-size: 36px;
  color: #C2D1CA;
  margin-bottom: 16px;
}

.news-empty p {
  font-size: 16px;
  color: var(--text-muted);
}

/* FAQ */
.faq-section { padding: 110px 0; background: #fff; }

.faq-group { margin-bottom: 48px; }

.faq-group:last-child { margin-bottom: 0; }

.faq-group-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(10, 158, 108, 0.1);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}

.faq-group-tag i { font-size: 13px; }

.faq-list { max-width: 900px; margin: 0 auto; }

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item.active {
  border-color: rgba(10, 158, 108, 0.25);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-heading);
  text-align: left;
  transition: all var(--transition);
  min-height: 48px;
}

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

.faq-question .faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(10, 158, 108, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.active .faq-answer { max-height: 500px; }

.faq-answer-inner {
  padding: 0 26px 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-body);
  border-top: 1px solid var(--divider);
  padding-top: 16px;
}

/* CTA */
.cta-section { padding: 40px 0 110px; background: var(--bg); }

.cta-panel {
  background: linear-gradient(135deg, rgba(243, 247, 245, 0.95), rgba(234, 244, 239, 0.98)),
              url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 80px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-main);
}

.cta-panel h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 14px;
  line-height: 1.35;
}

.cta-panel p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-safe {
  font-size: 12px !important;
  color: var(--text-muted) !important;
  margin-top: 18px !important;
  margin-bottom: 0 !important;
}

/* Footer */
.site-footer {
  background: var(--primary-deep);
  padding: 70px 0 0;
  color: #C7E0D5;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
}

.footer-brand .brand {
  margin-bottom: 18px;
}

.footer-brand .brand-text { color: #fff; }

.footer-brand .brand-tag { background: var(--grad-cta); }

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #92AA9F;
  max-width: 300px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: #92AA9F;
  transition: color var(--transition);
}

.footer-links a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: #92AA9F;
  margin: 0;
}

.footer-bottom a { color: #92AA9F; }
.footer-bottom a:hover { color: #fff; }

/* Responsive */
@media (max-width: 1199px) {
  .hero-grid { gap: 50px; }
  .hero h1 { font-size: 44px; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-block { gap: 50px; }
}

@media (max-width: 1023px) {
  .header-tools .btn-ghost,
  .header-tools .btn-primary { display: none; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: block; }
  .mobile-nav ul { flex-direction: column; }
  .hero { padding: 130px 0 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .hero-sub { max-width: 100%; }
  .hero-visual { max-width: 520px; margin: 0 auto; width: 100%; }
  .solution-block { grid-template-columns: 1fr; gap: 40px; }
  .solution-block.reverse .solution-image { order: 1; }
  .solution-block.reverse .solution-content { order: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .data-panel { flex-direction: column; gap: 40px; padding: 50px 30px; }
  .data-item + .data-item { border-left: none; border-top: 1px solid rgba(255, 255, 255, 0.18); padding-top: 36px; }
  .data-item { padding: 0; }
  .data-bar { margin-left: auto; margin-right: auto; }
  .news-layout { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 30px; }
}

@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .brand-tag { display: none; }
  .hero { padding: 110px 0 56px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .trust-item { padding: 8px 14px 8px 0; margin-right: 14px; }
  .trust-item strong { font-size: 20px; }
  .pain-points, .solution, .testimonials, .news-section, .faq-section { padding: 64px 0; }
  .pain-grid { grid-template-columns: 1fr; gap: 16px; }
  .solution-block { margin-bottom: 64px; }
  .solution-content h3 { font-size: 24px; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 26px; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .data-num { font-size: 40px; }
  .cta-panel { padding: 50px 24px; }
  .cta-panel h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .news-list-item { flex-direction: column; gap: 8px; }
  .news-list-date { min-width: 0; }
  .news-list-arrow { display: none; }
  .float-online { right: 0; }
  .float-speed { left: 0; }
  .login-card { margin: 0; }
  .faq-question { font-size: 15px; padding: 16px 18px; }
  .faq-answer-inner { padding: 0 18px 18px; }
  .data-panel { padding: 40px 20px; }
}

@media (max-width: 520px) {
  .hero-badge { font-size: 13px; }
  .login-card { padding: 28px 20px 22px; }
  .float-badge { padding: 10px 14px; }
  .float-badge .badge-num { font-size: 16px; }
  .solution-list li { font-size: 14px; }
  .news-featured-cover { height: 180px; }
  .data-label { font-size: 13px; }
  .btn-large { width: 100%; }
}

/* roulang page: article */
/* ====== 设计变量 ====== */
:root {
  --primary: #0A9E6C;
  --primary-dark: #0F8663;
  --deep: #163C33;
  --accent: #FF9C42;
  --accent-light: #FFB36B;
  --bg: #F3F7F5;
  --card: #FFFFFF;
  --text: #14231E;
  --text-body: #4F625B;
  --text-aux: #7E9088;
  --gradient: linear-gradient(135deg, #0A9E6C 0%, #0E8A7F 100%);
  --gradient-accent: linear-gradient(90deg, #FF9C42 0%, #FFB36B 100%);
  --radius-lg: 24px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(10, 158, 108, 0.06);
  --shadow-hover: 0 12px 32px rgba(10, 158, 108, 0.14);
  --border: 1px solid rgba(22, 51, 51, 0.08);
  --divider: 1px solid rgba(22, 51, 51, 0.06);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}

/* ====== Reset 与基础 ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease; }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }

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

/* ====== 按钮 ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all .25s ease;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 6px 16px rgba(10, 158, 108, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 10px 26px rgba(10, 158, 108, 0.35);
  transform: translateY(-1px);
  color: #fff;
}
.btn-secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}
.btn:active { transform: scale(0.98); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ====== 顶部导航 ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid rgba(22, 51, 51, 0.06);
  box-shadow: 0 4px 20px rgba(22, 51, 51, 0.03);
  transition: box-shadow .3s ease;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(10, 158, 108, 0.28);
}
.brand-text {
  font-weight: 700;
  color: var(--text);
  font-size: 18px;
  line-height: 1.2;
}
.brand-tag {
  font-size: 12px;
  background: var(--gradient-accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 999px;
  line-height: 20px;
  font-weight: 600;
  white-space: nowrap;
}
.main-nav ul {
  display: flex;
  gap: 28px;
  margin: 0;
}
.main-nav a {
  font-size: 15px;
  color: var(--text-body);
  padding: 10px 2px;
  position: relative;
  font-weight: 500;
  display: inline-block;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 3px;
  border-radius: 99px;
  background: var(--primary);
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(22, 51, 51, 0.1);
  border-radius: 12px;
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ====== 面包屑 ====== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.16);
  padding: 8px 18px;
  border-radius: 999px;
  width: fit-content;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.9);
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .fa-chevron-right { font-size: 10px; color: rgba(255, 255, 255, 0.5); }
.breadcrumb .current { color: #fff; font-weight: 600; }

/* ====== 文章头部区域 ====== */
.article-hero {
  background: linear-gradient(135deg, rgba(10, 158, 108, 0.92), rgba(14, 138, 127, 0.88)), url('/assets/images/backpic/back-1.png') center / cover;
  padding: 68px 0 60px;
  color: #fff;
  position: relative;
}
.article-hero .container { position: relative; z-index: 2; }
.article-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  max-width: 860px;
  word-wrap: break-word;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
}
.article-meta i { margin-right: 6px; opacity: 0.8; }
.meta-category {
  background: rgba(255, 255, 255, 0.18);
  padding: 2px 12px;
  border-radius: 999px;
  font-weight: 600;
}
.article-summary {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.92);
  max-width: 760px;
  margin-top: 8px;
}

/* ====== 正文阅读区 ====== */
.article-main-section { padding: 72px 0 80px; }
.article-layout { max-width: 900px; margin: 0 auto; }
.article-content {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 52px;
  border: 1px solid rgba(22, 51, 51, 0.06);
  overflow-wrap: break-word;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin: 40px 0 18px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}
.article-content h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin: 32px 0 14px;
}
.article-content h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin: 26px 0 12px;
}
.article-content p {
  margin-bottom: 22px;
  font-size: 16px;
  line-height: 1.85;
}
.article-content a { text-decoration: underline; text-underline-offset: 3px; }
.article-content img {
  border-radius: var(--radius);
  margin: 28px auto;
  box-shadow: 0 8px 24px rgba(22, 51, 51, 0.08);
}
.article-content figure { margin: 28px 0; }
.article-content figure img { margin-bottom: 8px; }
.article-content figcaption {
  font-size: 13px;
  color: var(--text-aux);
  text-align: center;
  margin-top: 6px;
}
.article-content blockquote {
  background: #EAF6F1;
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  padding: 20px 26px;
  color: var(--text);
  margin: 28px 0;
  font-size: 16px;
  line-height: 1.75;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content ul, .article-content ol {
  margin: 20px 0 24px;
  padding-left: 24px;
}
.article-content ul li {
  list-style: disc;
  margin-bottom: 10px;
  position: relative;
}
.article-content ol li {
  list-style: decimal;
  margin-bottom: 10px;
}
.article-content li::marker { color: var(--primary); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15px;
  border-radius: 12px;
  overflow: hidden;
}
.article-content table th {
  background: var(--primary);
  color: #fff;
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
}
.article-content table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(22, 51, 51, 0.08);
}
.article-content table tr:nth-child(even) td { background: #F7FAF8; }
.article-content hr {
  border: none;
  border-top: 1px solid rgba(22, 51, 51, 0.1);
  margin: 36px 0;
}

/* 内容未找到 */
.not-found-card {
  text-align: center;
  padding: 60px 30px;
}
.not-found-card .nf-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #EAF6F1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 30px;
  margin-bottom: 20px;
}
.not-found-card p { font-size: 18px; color: var(--text); margin-bottom: 24px; }

/* ====== 相关推荐 ====== */
.related-section { margin-top: 60px; }
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-title .title-mark {
  width: 8px;
  height: 26px;
  border-radius: 4px;
  background: var(--gradient);
  display: inline-block;
}
.related-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid rgba(22, 51, 51, 0.06);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  background: var(--gradient);
  overflow: hidden;
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.related-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}
.related-card:hover .related-body h3 { color: var(--primary); }
.related-time {
  font-size: 13px;
  color: var(--text-aux);
  font-family: var(--font-num);
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ====== 返回入口 ====== */
.article-back {
  margin-top: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(22, 51, 51, 0.06);
}
.back-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.back-link:hover { color: var(--primary-dark); }
.back-link i { transition: transform .25s ease; }
.back-link:hover i { transform: translateX(-3px); }

/* ====== 页脚 ====== */
.site-footer {
  background: var(--deep);
  color: #C7E0D5;
  padding: 60px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand .brand-logo {
  background: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}
.footer-brand .brand-text { color: #fff; }
.footer-desc {
  color: #92AA9F;
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 360px;
}
.footer-title {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: #92AA9F; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: #92AA9F;
}

/* ====== 桌面端 1024~1199px ====== */
@media (max-width: 1199px) {
  .container { max-width: 1000px; }
  .article-title { font-size: 34px; }
  .article-content { padding: 44px; }
}

/* ====== 平板 768~1023px ====== */
@media (max-width: 1023px) {
  .main-nav a { font-size: 14px; }
  .main-nav ul { gap: 18px; }
  .header-inner { gap: 16px; }
  .brand-tag { display: none; }
  .article-hero { padding: 56px 0 48px; }
  .article-title { font-size: 30px; }
  .article-main-section { padding: 56px 0 64px; }
  .article-content { padding: 36px; }
  .article-content h2 { font-size: 23px; }
  .related-section { margin-top: 48px; }
  .section-title { font-size: 24px; }
  .footer-grid { gap: 32px; }
}

/* ====== 移动端 ≤767px ====== */
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .brand-logo { width: 38px; height: 38px; font-size: 14px; border-radius: 10px; }
  .brand-text { font-size: 16px; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 16px 32px rgba(22, 51, 51, 0.14);
    border-radius: 0 0 20px 20px;
    padding: 16px 24px 24px;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 6px; }
  .main-nav a {
    display: block;
    padding: 12px 8px;
    border-radius: 10px;
    font-size: 15px;
  }
  .main-nav a:hover { background: #F0F7F3; color: var(--primary); }
  .main-nav a.active { background: #EAF6F1; }
  .menu-toggle { display: flex; }
  .article-hero { padding: 40px 0 36px; }
  .breadcrumb { font-size: 12px; padding: 6px 14px; margin-bottom: 20px; }
  .article-title { font-size: 26px; line-height: 1.35; margin-bottom: 14px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-summary { font-size: 15px; }
  .article-main-section { padding: 40px 0 48px; }
  .article-content { padding: 24px 20px; border-radius: 18px; }
  .article-content h2 { font-size: 20px; margin: 32px 0 14px; }
  .article-content h3 { font-size: 18px; }
  .article-content p { font-size: 15px; margin-bottom: 18px; }
  .article-content blockquote { padding: 16px 18px; font-size: 15px; }
  .related-section { margin-top: 36px; }
  .related-body h3 { font-size: 16px; }
  .section-title { font-size: 22px; margin-bottom: 20px; }
  .article-back { flex-direction: column; align-items: stretch; text-align: center; padding: 18px; }
  .article-back .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
      --primary: #0A9E6C;
      --primary-dark: #0F8663;
      --deep-green: #163C33;
      --accent: #FF9C42;
      --accent-light: #FFB36B;
      --bg: #F3F7F5;
      --card-bg: #FFFFFF;
      --text: #14231E;
      --text-body: #4F625B;
      --text-muted: #7E9088;
      --border: rgba(22, 51, 51, 0.08);
      --divider: rgba(22, 51, 51, 0.06);
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --shadow-sm: 0 8px 24px rgba(10, 158, 108, 0.06);
      --shadow-md: 0 16px 40px rgba(10, 158, 108, 0.10);
      --shadow-hover: 0 12px 32px rgba(10, 158, 108, 0.14);
      --gradient-brand: linear-gradient(135deg, #0A9E6C 0%, #0E8A7F 100%);
      --gradient-accent: linear-gradient(90deg, #FF9C42 0%, #FFB36B 100%);
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
      --header-height: 72px;
      --space-unit: 8px;
      --container-max: 1200px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-cn);
      background: var(--bg);
      color: var(--text-body);
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border: 0;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
    }
    a:hover {
      color: var(--primary-dark);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }
    ul, ol {
      list-style: none;
    }
    button {
      background: none;
      border: none;
      cursor: pointer;
      font: inherit;
      color: inherit;
    }

    /* ===== 容器 ===== */
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== 按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      line-height: 1.4;
      white-space: nowrap;
      transition: all .25s ease;
    }
    .btn-primary {
      background: var(--gradient-brand);
      color: #fff;
      box-shadow: 0 4px 14px rgba(10, 158, 108, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #0F8663, #0B746B);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(10, 158, 108, 0.32);
    }
    .btn-primary:active {
      transform: translateY(0) scale(0.98);
    }
    .btn-outline {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      background: transparent;
    }
    .btn-outline:hover {
      background: rgba(10, 158, 108, 0.08);
      color: var(--primary-dark);
      transform: translateY(-1px);
    }
    .btn-accent {
      background: var(--gradient-accent);
      color: #fff;
      box-shadow: 0 4px 14px rgba(255, 156, 66, 0.25);
    }
    .btn-accent:hover {
      background: linear-gradient(90deg, #FF8A20, #FFA35A);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(255, 156, 66, 0.35);
    }
    .btn-ghost {
      border: 1.5px solid rgba(22, 51, 51, 0.15);
      color: var(--text);
      background: transparent;
      font-size: 13px;
      padding: 8px 16px;
    }
    .btn-ghost:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(10, 158, 108, 0.04);
    }

    /* ===== 头部导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      transition: box-shadow .3s ease;
    }
    .site-header.scrolled {
      box-shadow: 0 8px 30px rgba(10, 158, 108, 0.08);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: var(--header-height);
      gap: 20px;
    }
    .header-left {
      flex-shrink: 0;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      background: var(--gradient-brand);
      color: #fff;
      font-weight: 700;
      font-size: 15px;
      letter-spacing: .5px;
      flex-shrink: 0;
    }
    .brand-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      white-space: nowrap;
    }
    .brand-tag {
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 999px;
      background: var(--gradient-accent);
      color: #fff;
      font-weight: 500;
      line-height: 1.4;
      white-space: nowrap;
    }
    .main-nav ul {
      display: flex;
      align-items: center;
      gap: 26px;
      margin: 0;
    }
    .main-nav a {
      position: relative;
      color: var(--text-body);
      font-size: 14px;
      font-weight: 500;
      padding: 8px 0;
      display: block;
    }
    .main-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 3px;
      border-radius: 99px;
      background: var(--primary);
      transition: width .25s ease;
    }
    .main-nav a:hover {
      color: var(--primary);
    }
    .main-nav a.active {
      color: var(--primary);
      font-weight: 600;
    }
    .main-nav a.active::after {
      width: 100%;
    }
    .header-tools {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .search-wrap {
      position: relative;
      display: flex;
      align-items: center;
    }
    .search-toggle {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-body);
      transition: background .2s, color .2s;
    }
    .search-toggle:hover {
      background: var(--bg);
      color: var(--primary);
    }
    .search-input {
      width: 0;
      opacity: 0;
      padding: 0;
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      background: var(--bg);
      font-size: 13px;
      font-family: var(--font-cn);
      transition: width .3s ease, opacity .3s ease, padding .3s ease;
    }
    .search-input::placeholder {
      color: var(--text-muted);
    }
    .search-wrap.expanded .search-input {
      width: 160px;
      opacity: 1;
      padding: 8px 12px;
      border-color: var(--border);
    }
    .search-input:focus {
      outline: none;
      border-color: var(--primary) !important;
      background: #fff;
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      transition: background .2s;
    }
    .nav-toggle:hover {
      background: var(--bg);
    }
    .nav-toggle span {
      width: 20px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: transform .3s ease, opacity .3s ease;
    }
    .nav-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ===== 移动端菜单 ===== */
    .mobile-menu {
      display: none;
    }
    @media (max-width: 1023px) {
      .mobile-menu.open {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        padding: 20px 24px 28px;
        box-shadow: 0 16px 40px rgba(22, 51, 51, 0.10);
      }
      .mobile-search {
        position: relative;
        margin-bottom: 18px;
      }
      .mobile-search input {
        width: 100%;
        padding: 10px 38px 10px 14px;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        background: var(--bg);
        font-size: 14px;
        font-family: var(--font-cn);
      }
      .mobile-search input:focus {
        outline: none;
        border-color: var(--primary);
        background: #fff;
      }
      .mobile-search i {
        position: absolute;
        right: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        font-size: 14px;
      }
      .mobile-nav-list {
        display: flex;
        flex-direction: column;
        gap: 4px;
        margin-bottom: 20px;
      }
      .mobile-nav-list a {
        padding: 10px 12px;
        border-radius: 10px;
        color: var(--text-body);
        font-size: 15px;
        font-weight: 500;
      }
      .mobile-nav-list a:hover {
        background: var(--bg);
        color: var(--primary);
      }
      .mobile-nav-list a.active {
        background: rgba(10, 158, 108, 0.08);
        color: var(--primary);
        font-weight: 600;
      }
      .mobile-actions {
        display: flex;
        gap: 12px;
      }
      .mobile-actions .btn {
        flex: 1;
      }
    }

    /* ===== 页面 H1 区 ===== */
    .page-hero {
      padding: 72px 0 56px;
      background: linear-gradient(180deg, #EAF5EF 0%, var(--bg) 100%);
      position: relative;
      overflow: hidden;
    }
    .page-hero::before {
      content: "";
      position: absolute;
      top: -100px;
      right: -40px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(10, 158, 108, 0.12), transparent 70%);
      pointer-events: none;
    }
    .page-hero::after {
      content: "";
      position: absolute;
      bottom: -60px;
      left: -60px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 156, 66, 0.08), transparent 70%);
      pointer-events: none;
    }
    .page-hero-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 999px;
      background: rgba(10, 158, 108, 0.12);
      color: var(--primary);
      margin-bottom: 16px;
      letter-spacing: .5px;
    }
    .page-hero h1 {
      font-size: clamp(30px, 4vw, 44px);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text);
      margin-bottom: 16px;
      letter-spacing: -.5px;
    }
    .page-hero h1 em {
      font-style: normal;
      color: var(--primary);
    }
    .hero-sub {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-body);
      max-width: 520px;
      margin-bottom: 24px;
    }
    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hero-trust {
      display: flex;
      gap: 12px;
      margin-top: 28px;
      flex-wrap: wrap;
    }
    .trust-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 6px 14px;
      font-size: 13px;
      color: var(--text-body);
      box-shadow: var(--shadow-sm);
    }
    .trust-badge strong {
      color: var(--primary);
      font-family: var(--font-num);
      font-size: 15px;
      font-weight: 700;
    }
    .page-hero-visual {
      position: relative;
    }
    .page-hero-visual img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      width: 100%;
      object-fit: cover;
      border: 1px solid var(--border);
    }
    .float-badge {
      position: absolute;
      top: 18px;
      right: -8px;
      background: #fff;
      border: 1px solid var(--border);
      padding: 8px 14px;
      border-radius: 12px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      gap: 6px;
      animation: floatPulse 3s ease-in-out infinite;
    }
    .float-badge i {
      color: var(--accent);
    }
    .float-badge small {
      display: block;
      font-size: 11px;
      color: var(--text-muted);
      font-weight: 400;
      line-height: 1.2;
    }
    @keyframes floatPulse {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }

    /* ===== 静态内容区 ===== */
    .guide-section {
      padding: 80px 0;
    }
    .guide-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .guide-block + .guide-block {
      border-top: 1px solid var(--divider);
      padding-top: 72px;
      margin-top: 72px;
    }
    .guide-block.reverse .guide-image {
      order: 2;
    }
    .guide-image {
      border-radius: 20px;
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .guide-image img {
      width: 100%;
      height: 300px;
      object-fit: cover;
      transition: transform .4s ease;
    }
    .guide-image:hover img {
      transform: scale(1.03);
    }
    .guide-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      font-family: var(--font-num);
      margin-bottom: 16px;
      box-shadow: 0 6px 16px rgba(10, 158, 108, 0.2);
    }
    .guide-block:nth-child(3) .guide-num {
      background: var(--gradient-accent);
      box-shadow: 0 6px 16px rgba(255, 156, 66, 0.22);
    }
    .guide-content h2 {
      font-size: 26px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 12px;
      line-height: 1.35;
    }
    .guide-content > p {
      color: var(--text-body);
      margin-bottom: 18px;
      font-size: 15px;
    }
    .guide-list li {
      position: relative;
      padding-left: 20px;
      line-height: 1.8;
      color: var(--text-body);
      margin-bottom: 8px;
      font-size: 15px;
    }
    .guide-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.85em;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary);
    }
    .guide-list li strong {
      color: var(--text);
      font-weight: 600;
    }

    /* ===== 编号步骤区 ===== */
    .guide-steps {
      padding: 0 16px;
    }
    .guide-steps .container {
      background: var(--deep-green);
      border-radius: 32px;
      padding: 64px 48px;
      position: relative;
      overflow: hidden;
    }
    .guide-steps .container::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -60px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
      pointer-events: none;
    }
    .section-head {
      text-align: center;
      max-width: 560px;
      margin: 0 auto 40px;
      position: relative;
      z-index: 2;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.18);
      color: #fff;
      margin-bottom: 12px;
      letter-spacing: .5px;
    }
    .section-head h2 {
      font-size: 32px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
      line-height: 1.3;
    }
    .section-head p {
      color: rgba(255, 255, 255, 0.72);
      font-size: 15px;
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      position: relative;
      z-index: 2;
    }
    .step-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 20px;
      padding: 32px 26px;
      transition: background .3s ease, transform .3s ease;
    }
    .step-card:hover {
      background: rgba(255, 255, 255, 0.12);
      transform: translateY(-4px);
    }
    .step-badge {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--gradient-accent);
      color: #fff;
      font-family: var(--font-num);
      font-size: 22px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      box-shadow: 0 6px 16px rgba(255, 156, 66, 0.3);
    }
    .step-card h3 {
      color: #fff;
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .step-card p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 14px;
      line-height: 1.75;
    }

    /* ===== CTA 区 ===== */
    .cta-section {
      padding: 80px 0 96px;
    }
    .cta-box {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
      background: #fff;
      border-radius: 32px;
      padding: 56px 48px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
      position: relative;
      overflow: hidden;
    }
    .cta-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 200px;
      height: 6px;
      background: var(--gradient-accent);
      border-radius: 0 0 8px 8px;
    }
    .cta-box::after {
      content: "";
      position: absolute;
      bottom: -80px;
      right: -80px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(10, 158, 108, 0.06), transparent 70%);
      pointer-events: none;
    }
    .cta-box h2 {
      font-size: 28px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 12px;
      position: relative;
      z-index: 2;
    }
    .cta-box > p {
      color: var(--text-body);
      margin-bottom: 28px;
      position: relative;
      z-index: 2;
    }
    .cta-actions {
      display: flex;
      gap: 14px;
      justify-content: center;
      flex-wrap: wrap;
      position: relative;
      z-index: 2;
    }
    .cta-note {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 20px;
      position: relative;
      z-index: 2;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--deep-green);
      padding: 64px 0 0;
      color: #C7E0D5;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 40px;
    }
    .footer-brand .brand {
      margin-bottom: 16px;
    }
    .footer-brand .brand-logo {
      width: 36px;
      height: 36px;
      font-size: 16px;
    }
    .footer-brand .brand-text {
      color: #fff;
    }
    .footer-brand .brand-tag {
      background: var(--gradient-accent);
    }
    .footer-desc {
      color: #92AA9F;
      font-size: 14px;
      line-height: 1.8;
      margin-top: 12px;
      max-width: 360px;
    }
    .footer-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #92AA9F;
      font-size: 14px;
      transition: color .2s ease;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      color: #92AA9F;
      font-size: 13px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1199px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }
      .main-nav ul {
        gap: 18px;
      }
      .brand-tag {
        display: none;
      }
      .guide-block {
        gap: 36px;
      }
    }

    @media (max-width: 1023px) {
      .main-nav {
        display: none;
      }
      .nav-toggle {
        display: flex;
      }
      .header-tools .btn-ghost,
      .header-tools .btn-primary {
        display: none;
      }
      .search-toggle {
        display: none;
      }
      .page-hero-inner {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .page-hero-visual {
        max-width: 520px;
      }
      .guide-block,
      .guide-block.reverse .guide-image {
        grid-template-columns: 1fr;
        order: 0;
      }
      .guide-image img {
        height: 260px;
      }
      .guide-block + .guide-block {
        margin-top: 56px;
        padding-top: 56px;
      }
      .steps-grid {
        grid-template-columns: 1fr 1fr;
      }
      .step-card:last-child {
        grid-column: span 2;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .header-inner {
        gap: 10px;
      }
      .brand-text {
        font-size: 16px;
      }
      .brand-logo {
        width: 30px;
        height: 30px;
        font-size: 13px;
        border-radius: 10px;
      }
      .page-hero {
        padding: 44px 0 36px;
      }
      .page-hero h1 {
        font-size: 28px;
        line-height: 1.3;
      }
      .hero-sub {
        font-size: 15px;
      }
      .hero-actions .btn {
        width: 100%;
      }
      .trust-badge {
        font-size: 12px;
        padding: 5px 10px;
      }
      .float-badge {
        right: 4px;
        top: 10px;
        padding: 6px 10px;
        font-size: 12px;
      }
      .guide-section {
        padding: 56px 0;
      }
      .guide-block {
        gap: 24px;
      }
      .guide-block + .guide-block {
        margin-top: 48px;
        padding-top: 48px;
      }
      .guide-image img {
        height: 220px;
      }
      .guide-content h2 {
        font-size: 22px;
      }
      .guide-content > p,
      .guide-list li {
        font-size: 14px;
      }
      .guide-steps .container {
        padding: 44px 20px;
        border-radius: 24px;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .steps-grid {
        grid-template-columns: 1fr;
      }
      .step-card:last-child {
        grid-column: span 1;
      }
      .step-card {
        padding: 24px 20px;
      }
      .cta-section {
        padding: 56px 0 64px;
      }
      .cta-box {
        padding: 40px 20px;
        border-radius: 24px;
      }
      .cta-box h2 {
        font-size: 22px;
      }
      .cta-actions .btn {
        width: 100%;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-bottom: 32px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }
    }

    @media (max-width: 374px) {
      .brand-tag {
        display: none;
      }
      .header-tools {
        gap: 6px;
      }
    }

/* roulang page: category2 */
:root {
  --primary: #0A9E6C;
  --primary-dark: #0F8663;
  --accent: #FF9C42;
  --accent-light: #FFB36B;
  --dark-green: #163C33;
  --bg: #F3F7F5;
  --white: #FFFFFF;
  --text: #14231E;
  --text-body: #4F625B;
  --text-muted: #7E9088;
  --border: rgba(22, 51, 51, 0.08);
  --divider: rgba(22, 51, 51, 0.06);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(10, 158, 108, 0.06);
  --shadow-lg: 0 16px 40px rgba(10, 158, 108, 0.10);
  --shadow-hover: 0 12px 32px rgba(10, 158, 108, 0.14);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: DIN Alternate, "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg);
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: var(--primary);
  transition: color 0.2s ease;
}
a:hover {
  color: var(--primary-dark);
}
img {
  max-width: 100%;
  display: block;
  border-radius: 20px;
}
ul, ol {
  list-style: none;
}
button, input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
}
button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 110px 0;
  position: relative;
}

/* Header Nav */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--divider);
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 1px 12px rgba(20, 35, 30, 0.04);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(20, 35, 30, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, #0E8A7F 100%);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 1px;
}
.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.brand-tag {
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 999px;
  padding: 4px 12px;
  line-height: 1.4;
  white-space: nowrap;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 4px;
  position: relative;
  transition: color 0.2s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
  transition: width 0.25s ease;
}
.main-nav a:hover {
  color: var(--primary-dark);
}
.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}
.main-nav a.active::after {
  width: 100%;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-search {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text-body);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: background 0.2s, color 0.2s;
}
.header-search:hover {
  background: rgba(10, 158, 108, 0.1);
  color: var(--primary);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
}
.btn-ghost:hover {
  background: rgba(10, 158, 108, 0.08);
  color: var(--primary-dark);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), #0E8A7F);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(10, 158, 108, 0.22);
  transition: all 0.25s ease;
}
.btn-primary:hover {
  box-shadow: 0 8px 24px rgba(10, 158, 108, 0.32);
  transform: translateY(-1px);
  color: #fff;
}
.btn-primary:active {
  transform: scale(0.97);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--divider);
  padding: 24px;
  box-shadow: 0 16px 32px rgba(20, 35, 30, 0.12);
  z-index: 998;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.mobile-menu.open {
  max-height: 520px;
  padding: 24px;
}
.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav a {
  display: block;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-body);
}
.mobile-nav a.active {
  background: rgba(10, 158, 108, 0.08);
  color: var(--primary);
  font-weight: 600;
}
.mobile-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.mobile-actions .btn-ghost, .mobile-actions .btn-primary {
  flex: 1;
  height: 42px;
}

/* FAQ Hero */
.faq-hero {
  background: linear-gradient(160deg, #EAF4EF 0%, #F3F7F5 100%);
  padding: 80px 0 96px;
  position: relative;
  overflow: hidden;
}
.faq-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(10, 158, 108, 0.10) 0%, transparent 70%);
  border-radius: 50%;
}
.faq-hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}
.faq-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 158, 108, 0.10);
  border: 1px solid rgba(10, 158, 108, 0.18);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.faq-hero h1 {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  letter-spacing: -1px;
  margin-bottom: 18px;
}
.faq-hero h1 .highlight {
  color: var(--primary);
}
.faq-hero-sub {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-body);
  max-width: 520px;
  margin-bottom: 28px;
}
.faq-hero-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.stat-pill {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow);
  font-size: 14px;
  color: var(--text-body);
}
.stat-pill .stat-num {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}
.faq-hero-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.faq-hero-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
}
.faq-hero-card-body {
  padding: 24px;
}
.faq-hero-card-body .badge-accent {
  display: inline-block;
  background: rgba(255, 156, 66, 0.12);
  color: #C96F1F;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.faq-hero-card-body p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 16px;
}
.text-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.text-link i {
  transition: transform 0.2s ease;
}
.text-link:hover i {
  transform: translateX(4px);
}

/* FAQ Groups */
.faq-groups-section {
  padding: 96px 0 80px;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .section-tag {
  display: inline-block;
  background: rgba(10, 158, 108, 0.10);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-header h2 {
  font-size: 36px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-header p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}
.faq-groups-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.faq-group-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 32px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.faq-group-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.faq-group-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.faq-group-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #0E8A7F);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-group-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}
.faq-group-header span {
  font-size: 13px;
  color: var(--text-muted);
}
.faq-item {
  border-top: 1px solid var(--divider);
}
.faq-item:first-of-type {
  border-top: none;
}
.faq-question {
  width: 100%;
  text-align: left;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 16px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  line-height: 1.5;
  transition: color 0.2s ease;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.3s ease, color 0.2s ease;
}
.faq-item.active .faq-question {
  color: var(--primary);
  font-weight: 600;
}
.faq-item.active .faq-question i {
  color: var(--primary);
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0;
  transition: max-height 0.35s ease, padding 0.3s ease;
}
.faq-answer p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-body);
  padding-bottom: 18px;
}
.faq-item.active .faq-answer {
  padding-top: 2px;
}

/* FAQ Banner */
.faq-banner {
  padding: 0 0 96px;
}
.faq-banner-box {
  background: #FFF4EA;
  border: 1px solid rgba(255, 156, 66, 0.18);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.faq-banner-box .banner-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-banner-text {
  flex: 1;
  min-width: 260px;
}
.faq-banner-text h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.faq-banner-text p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
}
.faq-banner-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-banner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
}
.btn-banner-solid {
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 156, 66, 0.28);
}
.btn-banner-solid:hover {
  box-shadow: 0 10px 28px rgba(255, 156, 66, 0.36);
  transform: translateY(-1px);
  color: #fff;
}
.btn-banner-outline {
  border: 1px solid rgba(255, 156, 66, 0.5);
  color: #C96F1F;
}
.btn-banner-outline:hover {
  background: rgba(255, 156, 66, 0.08);
  color: #A85A15;
}

/* Footer */
.site-footer {
  background: var(--dark-green);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.footer-brand .brand-logo {
  width: 44px;
  height: 44px;
  font-size: 18px;
}
.footer-brand .brand-text {
  color: #fff;
}
.footer-brand .brand-tag {
  background: rgba(255, 255, 255, 0.12);
  color: #C7E0D5;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: #92AA9F;
  max-width: 340px;
  margin-top: 8px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #C7E0D5;
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: #92AA9F;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: #92AA9F;
}

/* Responsive */
@media (max-width: 1199px) {
  .faq-hero h1 {
    font-size: 44px;
  }
  .main-nav ul {
    gap: 20px;
  }
}
@media (max-width: 1023px) {
  .section {
    padding: 72px 0;
  }
  .faq-hero {
    padding: 64px 0 72px;
  }
  .faq-hero .container {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .faq-hero-sub {
    max-width: 100%;
  }
  .faq-groups-grid {
    grid-template-columns: 1fr;
  }
  .faq-groups-section {
    padding: 72px 0 56px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .main-nav, .header-actions {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-menu {
    display: block;
  }
}
@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
  .container {
    padding: 0 16px;
  }
  .header-inner {
    height: 64px;
  }
  .brand-logo {
    width: 36px;
    height: 36px;
    font-size: 15px;
  }
  .brand-text {
    font-size: 18px;
  }
  .brand-tag {
    font-size: 11px;
    padding: 3px 10px;
  }
  .mobile-menu {
    top: 64px;
  }
  .faq-hero {
    padding: 48px 0 56px;
  }
  .faq-hero h1 {
    font-size: 34px;
    line-height: 1.25;
  }
  .faq-hero-sub {
    font-size: 15px;
  }
  .faq-hero-stats {
    gap: 10px;
  }
  .stat-pill {
    padding: 8px 14px;
    font-size: 13px;
  }
  .stat-pill .stat-num {
    font-size: 18px;
  }
  .section-header h2 {
    font-size: 26px;
  }
  .section-header p {
    font-size: 14px;
  }
  .faq-group-card {
    padding: 24px 20px;
  }
  .faq-banner {
    padding: 0 0 48px;
  }
  .faq-banner-box {
    padding: 28px 24px;
    flex-direction: column;
    align-items: flex-start;
  }
  .faq-banner-actions {
    width: 100%;
  }
  .faq-banner-actions .btn {
    flex: 1;
    justify-content: center;
    text-align: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}