/* roulang page: index */
:root {
  --primary: #00D68F;
  --primary-dark: #00b87a;
  --primary-soft: rgba(0,214,143,0.12);
  --dark-bg: #0B0F14;
  --dark-card: #10161D;
  --light-bg: #F6F8FA;
  --white: #FFFFFF;
  --accent: #FFB800;
  --text-dark: #2B323B;
  --text-gray: #6B7684;
  --text-light: #E6EDF3;
  --text-light-gray: #9AA6B2;
  --border-light: #E3E8EE;
  --border-dark: rgba(255,255,255,0.08);
  --radius-card: 14px;
  --radius-btn: 6px;
  --radius-img: 12px;
  --shadow-card: 0 2px 8px rgba(11,15,20,0.04);
  --shadow-hover: 0 10px 30px rgba(11,15,20,0.10);
  --transition: all .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.75;
  font-size: 15px;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; }
button:focus, input:focus, a:focus { outline: 2px solid rgba(0,214,143,0.45); outline-offset: 2px; }
ul { list-style: none; padding: 0; margin: 0; }

.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

section { position: relative; }

.text-primary { color: var(--primary) !important; }
.bg-dark-section { background: var(--dark-bg); }

.section-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.section-sub {
  font-size: 15px;
  color: var(--text-gray);
  margin-bottom: 0;
}
.section-head { margin-bottom: 48px; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

/* ===== Header / Nav ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 1px 4px rgba(11,15,20,0.03);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 4px 20px rgba(11,15,20,0.06); }

.navbar { min-height: 72px; padding: 0; }
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #1A1D21;
  padding: 0;
  margin: 0;
}
.navbar-brand:hover { color: #1A1D21; }
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-icon svg { width: 22px; height: 22px; }

.navbar-collapse { flex-grow: 0; }
.navbar-nav { gap: 4px; }
.navbar-nav .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
}
.navbar-nav .nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.navbar-nav .nav-link.active { color: var(--primary); font-weight: 600; }

.navbar-nav .dropdown-menu {
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 10px 30px rgba(11,15,20,0.08);
  min-width: 170px;
}
.navbar-nav .dropdown-item {
  font-size: 14px;
  color: var(--text-dark);
  padding: 8px 14px;
  border-radius: 8px;
}
.navbar-nav .dropdown-item:hover { background: var(--primary-soft); color: var(--primary); }

.nav-right { display: flex; align-items: center; gap: 12px; margin-left: 16px; }

.search-wrap { position: relative; }
.search-wrap input {
  width: 220px;
  height: 38px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--light-bg);
  padding: 0 38px 0 14px;
  font-size: 14px;
  color: var(--text-dark);
  transition: var(--transition);
}
.search-wrap input:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(0,214,143,0.10);
}
.search-wrap i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-gray);
  pointer-events: none;
}

.btn-header {
  height: 40px;
  padding: 0 20px;
  background: var(--primary);
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-header:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,214,143,0.25); }
.btn-header:active { transform: translateY(0); }

.btn-outline-header {
  height: 40px;
  padding: 0 20px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 6px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.btn-outline-header:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.08); }

.navbar-toggler {
  border: none;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-dark);
  border-radius: 8px;
  padding: 0;
}
.navbar-toggler:hover { background: var(--light-bg); }
.navbar-toggler:focus { box-shadow: none; outline: 2px solid rgba(0,214,143,0.4); }

.header-cta-mobile {
  height: 36px;
  padding: 0 16px;
  font-size: 13px;
  background: var(--primary);
  border: none;
  border-radius: 6px;
  color: #fff;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.header-cta-mobile:hover { background: var(--primary-dark); color: #fff; }

/* ===== Hero ===== */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  position: relative;
  padding: 120px 0 80px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(4,8,12,0.55) 0%, rgba(4,8,12,0.85) 100%);
}
.hero .container { position: relative; z-index: 2; }

.hero .hero-content {
  max-width: 640px;
}
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero .hero-desc {
  font-size: 16px;
  color: #B7C0CC;
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.btn-hero {
  height: 50px;
  padding: 0 36px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-hero-primary { background: var(--primary); color: #fff; border: none; }
.btn-hero-primary:hover { background: var(--primary-dark); color: #fff; box-shadow: 0 8px 24px rgba(0,214,143,0.35); transform: translateY(-2px); }
.btn-hero-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.6); }
.btn-hero-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); color: #fff; transform: translateY(-2px); }

.hero-stats { display: flex; gap: 48px; margin-top: 20px; flex-wrap: wrap; }
.hero-stats .stat-item .stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.hero-stats .stat-item .stat-label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 4px; }

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.4);
  font-size: 18px;
  animation: bounceDown 2s infinite;
  z-index: 2;
  transition: var(--transition);
}
.hero-scroll:hover { color: #fff; }
@keyframes bounceDown { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ===== Features ===== */
.features-section {
  padding: 96px 0;
  background: var(--light-bg);
}
.features-wrap {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 56px;
  align-items: center;
}
.features-left { display: flex; flex-direction: column; gap: 32px; }
.feature-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 20px 24px;
  border-radius: var(--radius-card);
  background: var(--white);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.feature-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.feature-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  min-width: 60px;
}
.feature-item:hover .feature-num { color: var(--primary-dark); }
.feature-item h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.feature-item p { font-size: 14px; color: var(--text-gray); margin: 0; }
.feature-item:hover h3 { transform: translateX(4px); }
.feature-item h3 { transition: var(--transition); }

.features-right img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: 0 16px 40px rgba(11,15,20,0.10);
  display: block;
}

/* ===== Demo ===== */
.demo-section {
  padding: 96px 0;
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}
.demo-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,214,143,0.08) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  pointer-events: none;
}
.demo-section .section-title { color: var(--text-light); }
.demo-section .section-sub { color: var(--text-light-gray); }

.demo-stage {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  border-radius: 16px;
  border: 1px solid var(--border-dark);
  overflow: hidden;
  background: #0a0e12;
}
.demo-stage img { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; }
.demo-live-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(11,15,20,0.8);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  z-index: 2;
}
.demo-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 0 rgba(0,214,143,0.4);
  animation: pulseRing 2s infinite;
  z-index: 2;
}
.demo-play-btn:hover { background: var(--primary-dark); transform: translate(-50%, -50%) scale(1.06); }
@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(0,214,143,0.35); }
  70% { box-shadow: 0 0 0 24px rgba(0,214,143,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,214,143,0); }
}
.demo-caption {
  text-align: center;
  font-size: 14px;
  color: var(--text-light-gray);
  margin-top: 20px;
}

/* ===== Evidence ===== */
.evidence-section { padding: 96px 0; background: var(--white); }
.evidence-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.evidence-stat {
  text-align: center;
  padding: 28px 16px;
  background: var(--light-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}
.evidence-stat:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.evidence-stat .num {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.evidence-stat .label { font-size: 13px; color: var(--text-gray); margin-top: 6px; }

.evidence-quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.quote-card {
  background: var(--light-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: var(--transition);
  cursor: default;
}
.quote-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.quote-card:nth-child(2) { margin-top: 24px; }
.quote-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.quote-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quote-name { font-size: 14px; font-weight: 600; color: var(--text-dark); }
.quote-role { font-size: 13px; color: var(--text-gray); }
.quote-stars { color: var(--accent); font-size: 13px; margin-bottom: 10px; }
.quote-text { font-size: 14px; color: var(--text-gray); line-height: 1.8; margin: 0; }

/* ===== Price ===== */
.price-section { padding: 96px 0; background: var(--dark-card); }
.price-section .section-title { color: var(--text-light); }
.price-section .section-sub { color: var(--text-light-gray); }

.price-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; max-width: 860px; margin: 0 auto; align-items: stretch; }
.price-card {
  background: var(--dark-bg);
  border: 1px solid var(--border-dark);
  border-radius: 16px;
  padding: 36px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(0,214,143,0.08);
}
.price-card:hover { border-color: rgba(0,214,143,0.35); box-shadow: 0 12px 36px rgba(0,0,0,0.4); }
.price-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--accent);
  color: #1A1D21;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
}
.price-name { font-size: 16px; font-weight: 700; color: var(--text-light); margin-bottom: 8px; }
.price-amount { display: flex; align-items: baseline; gap: 6px; margin: 16px 0 24px; }
.price-amount .currency { font-size: 20px; font-weight: 700; color: var(--text-light); }
.price-amount .value { font-size: 48px; font-weight: 800; color: var(--primary); line-height: 1; font-variant-numeric: tabular-nums; }
.price-amount .period { font-size: 14px; color: var(--text-light-gray); }
.price-features { list-style: none; padding: 0; margin: 0 0 32px; flex-grow: 1; }
.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #B7C0CC;
  padding: 8px 0;
}
.price-features li svg { color: var(--primary); flex-shrink: 0; }
.btn-price {
  height: 44px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-price-outline { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: var(--text-light); }
.btn-price-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-price-solid { background: var(--primary); color: #fff; }
.btn-price-solid:hover { background: var(--primary-dark); color: #fff; box-shadow: 0 6px 20px rgba(0,214,143,0.3); transform: translateY(-2px); }

/* ===== News ===== */
.news-section { padding: 96px 0; background: var(--white); }

.news-card-large {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
  display: block;
  height: 100%;
  box-shadow: var(--shadow-card);
}
.news-card-large:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-cover { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card-large:hover .news-cover img { transform: scale(1.04); }
.news-cover .news-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: rgba(11,15,20,0.75);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(0,214,143,0.3);
}
.news-body { padding: 22px 24px; }
.news-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.news-body h3 a { color: var(--text-dark); }
.news-body h3 a:hover { color: var(--primary); }
.news-body p {
  font-size: 14px;
  color: var(--text-gray);
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-gray); }
.news-meta time { display: flex; align-items: center; gap: 4px; }

.news-list { margin-top: 24px; display: flex; flex-direction: column; gap: 16px; }
.news-row {
  display: flex;
  gap: 20px;
  padding: 16px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  align-items: center;
}
.news-row:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-row-thumb {
  width: 170px;
  min-width: 170px;
  height: 110px;
  border-radius: 10px;
  overflow: hidden;
  display: block;
}
.news-row-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-row:hover .news-row-thumb img { transform: scale(1.05); }
.news-row-content { flex: 1; min-width: 0; }
.news-row-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-row-content h3 a { color: var(--text-dark); }
.news-row-content h3 a:hover { color: var(--primary); }
.news-row-content p {
  font-size: 14px;
  color: var(--text-gray);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}
.news-row-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-gray); flex-wrap: wrap; }
.news-badge {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
}
.news-more { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; transition: var(--transition); }
.news-more i { transition: transform .2s ease; }
.news-more:hover { color: var(--primary-dark); }
.news-more:hover i { transform: translateX(4px); }

.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--light-bg);
  border-radius: var(--radius-card);
  border: 1px dashed var(--border-light);
  color: var(--text-gray);
  font-size: 15px;
}
.news-empty i { font-size: 32px; color: var(--border-light); display: block; margin-bottom: 12px; }

/* ===== FAQ ===== */
.faq-section { padding: 96px 0; background: var(--light-bg); }

.accordion { --bs-accordion-border-radius: 12px; --bs-accordion-border-width: 1px; --bs-accordion-border-color: var(--border-light); --bs-accordion-bg: var(--white); max-width: 820px; margin: 0 auto; }
.accordion-item { border-radius: 12px; border: 1px solid var(--border-light); margin-bottom: 12px; box-shadow: var(--shadow-card); overflow: hidden; }
.accordion-item:last-child { margin-bottom: 0; }
.accordion-button {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  background: var(--white);
  box-shadow: none;
  padding: 18px 20px;
  transition: var(--transition);
}
.accordion-button:not(.collapsed) { color: var(--primary); background: var(--white); box-shadow: none; }
.accordion-button:focus { box-shadow: none; border-color: rgba(0,214,143,0.3); }
.accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\2b";
  transition: transform .3s ease;
  color: var(--text-gray);
}
.accordion-button:not(.collapsed)::after {
  color: var(--primary);
  transform: rotate(45deg);
}
.accordion-body {
  font-size: 14px;
  color: var(--text-gray);
  background: var(--white);
  padding: 0 20px 20px;
  border-left: 3px solid var(--primary);
  margin: 0 20px 0;
  border-radius: 0 0 6px 6px;
}

/* ===== CTA Final ===== */
.cta-final {
  padding: 100px 0;
  background: var(--dark-bg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-final::before {
  content: '';
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,214,143,0.06) 0%, transparent 70%);
  bottom: -300px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}
.cta-final h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-final p {
  font-size: 15px;
  color: var(--text-light-gray);
  max-width: 480px;
  margin: 0 auto 36px;
  position: relative;
  z-index: 1;
}
.btn-cta-final {
  height: 50px;
  padding: 0 44px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  position: relative;
  z-index: 1;
}
.btn-cta-final:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0,214,143,0.3); }
.cta-note {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 18px;
  position: relative;
  z-index: 1;
}

/* ===== Footer ===== */
.site-footer { background: var(--dark-bg); padding: 64px 0 0; border-top: 1px solid var(--border-dark); }
.footer-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-dark);
}
.footer-brand .footer-logo { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 700; color: var(--text-light); margin-bottom: 12px; }
.footer-brand p { font-size: 13px; color: var(--text-light-gray); margin: 0; line-height: 1.8; max-width: 240px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--text-light); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: var(--text-light-gray); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary); }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); margin: 0; }
.footer-bottom .icp-placeholder { font-size: 13px; color: rgba(255,255,255,0.3); }

/* ===== Floating CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 40px;
  right: 40px;
  z-index: 999;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  height: 52px;
  padding: 0 24px;
  font-size: 14px;
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 8px 28px rgba(0,214,143,0.35);
  transition: var(--transition);
  animation: floatUp 2.5s ease-in-out infinite;
}
.floating-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-3px); }
.floating-cta.visible { display: flex; }
@keyframes floatUp { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }

/* ===== Fade-up animation ===== */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .features-wrap { grid-template-columns: 1fr 360px; gap: 36px; }
}

@media (max-width: 991px) {
  .navbar { min-height: 60px; }
  .site-header { position: sticky; }
  .navbar-collapse {
    background: var(--white);
    border-top: 1px solid var(--border-light);
    padding: 12px 0 20px;
    margin-top: 8px;
  }
  .navbar-nav .nav-link { padding: 12px 0; font-size: 15px; border-radius: 0; border-bottom: 1px solid #f0f2f5; }
  .navbar-nav .dropdown-menu { border: none; box-shadow: none; padding: 0 0 0 16px; }
  .navbar-nav .dropdown-item { padding: 10px 0; border-radius: 0; }
  .nav-right { margin-left: 0; padding-top: 16px; width: 100%; }
  .search-wrap { flex: 1; }
  .search-wrap input { width: 100%; }

  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 40px; }

  .features-wrap { grid-template-columns: 1fr; }
  .features-right { display: none; }

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

  .price-cards { grid-template-columns: 1fr; max-width: 480px; }

  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767px) {
  .container { padding-left: 16px; padding-right: 16px; }
  section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .section-head { margin-bottom: 32px; }

  .hero { padding: 90px 0 50px; }
  .hero h1 { font-size: 34px; line-height: 1.3; }
  .hero .hero-desc { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-hero { width: 100%; }
  .hero-stats { gap: 24px; }
  .hero-stats .stat-item .stat-num { font-size: 28px; }

  .feature-item { padding: 16px; flex-direction: column; gap: 14px; }
  .feature-num { font-size: 32px; }

  .demo-stage { border-radius: 12px; }
  .demo-play-btn { width: 56px; height: 56px; font-size: 18px; }

  .evidence-quotes { grid-template-columns: 1fr; }
  .quote-card:nth-child(2) { margin-top: 0; }

  .price-card { padding: 24px; }

  .news-row { flex-direction: column; gap: 12px; align-items: flex-start; }
  .news-row-thumb { width: 100%; height: 160px; }

  .cta-final h2 { font-size: 28px; }

  .footer-cols { grid-template-columns: 1fr; gap: 28px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .floating-cta { width: 52px; height: 52px; padding: 0; border-radius: 50%; bottom: 24px; right: 24px; }
  .floating-cta .cta-text { display: none; }
}

@media (max-width: 520px) {
  .hero-stats { flex-direction: column; gap: 16px; }
  .evidence-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .evidence-stat .num { font-size: 32px; }
}

/* roulang page: category1 */
:root {
  --primary: #00D68F;
  --primary-dark: #00ab74;
  --primary-glow: rgba(0, 214, 143, .22);
  --primary-soft: rgba(0, 214, 143, .08);
  --dark: #0B0F14;
  --dark-card: #10161D;
  --light-bg: #F6F8FA;
  --white: #ffffff;
  --text-main: #2B323B;
  --text-muted: #6B7684;
  --text-on-dark: #E6EDF3;
  --text-on-dark-muted: #9AA6B2;
  --border: #E3E8EE;
  --border-dark: rgba(255, 255, 255, .08);
  --accent: #FFB800;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --shadow-sm: 0 2px 8px rgba(11, 15, 20, .04);
  --shadow-md: 0 6px 18px rgba(11, 15, 20, .08);
  --shadow-hover: 0 10px 30px rgba(11, 15, 20, .12);
  --transition: .2s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
  border: none;
  outline: none;
}
.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(11, 15, 20, .08);
}
.site-header .navbar {
  min-height: 72px;
  padding: 0;
}
.site-header .container {
  display: flex;
  align-items: center;
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #1A1D21;
  white-space: nowrap;
}
.navbar-brand .brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  flex-shrink: 0;
}
.navbar-brand .brand-icon svg {
  width: 18px;
  height: 18px;
}
.navbar-nav {
  gap: 2px;
}
.navbar-nav .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary);
}
.navbar-nav .nav-link.active {
  font-weight: 600;
}
.dropdown-menu {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 6px;
}
.dropdown-item {
  font-size: 14px;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-main);
  transition: background var(--transition), color var(--transition);
}
.dropdown-item:hover,
.dropdown-item.active {
  background: var(--primary-soft);
  color: var(--primary);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-wrap {
  position: relative;
  width: 220px;
}
.search-wrap input {
  width: 100%;
  height: 38px;
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 38px 0 14px;
  font-size: 13px;
  color: var(--text-main);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.search-wrap input::placeholder {
  color: #a0a8b3;
}
.search-wrap input:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.search-wrap i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: #9aa3af;
  pointer-events: none;
}
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-header:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.header-cta-mobile {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.navbar-toggler {
  border: none;
  background: transparent;
  padding: 6px 8px;
  color: var(--text-main);
  font-size: 20px;
}
.navbar-toggler:focus {
  box-shadow: none;
}
.cat-banner {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  padding: 110px 0 90px;
  color: var(--white);
}
.cat-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(4, 8, 12, .82), rgba(11, 15, 20, .58));
}
.cat-banner .container {
  position: relative;
  z-index: 2;
}
.cat-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, .8);
  margin-bottom: 22px;
}
.cat-breadcrumb a {
  color: rgba(255, 255, 255, .7);
}
.cat-breadcrumb a:hover {
  color: var(--primary);
}
.cat-breadcrumb .sep {
  opacity: .4;
}
.cat-breadcrumb .cur {
  color: var(--primary);
  font-weight: 500;
}
.cat-banner h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.cat-banner .lead {
  font-size: 16px;
  color: #b7c0cc;
  max-width: 560px;
  margin: 0;
  line-height: 1.7;
}
.cat-banner .banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.cat-banner .banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
}
.cat-banner .banner-tag i {
  color: var(--primary);
  font-size: 12px;
}
.featured-guides {
  background: var(--light-bg);
  padding: 96px 0;
}
.section-head {
  margin-bottom: 42px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 8px;
}
.section-head .eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-main);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.section-head .sub {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}
.featured-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 24px;
  align-items: start;
}
.guide-main-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.guide-main-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.guide-main-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 8.5;
}
.guide-main-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.guide-main-card:hover .card-img img {
  transform: scale(1.03);
}
.guide-main-card .card-img .badge-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0, 214, 143, .35);
}
.guide-main-card .card-body {
  padding: 26px 28px;
}
.guide-main-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 10px;
  line-height: 1.4;
}
.guide-main-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 18px;
  line-height: 1.7;
}
.guide-main-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-top: 1px solid var(--border);
  background: #fafbfc;
}
.guide-main-card .card-meta {
  font-size: 13px;
  color: var(--text-muted);
}
.guide-main-card .card-meta i {
  color: var(--primary);
  margin-right: 4px;
}
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition);
}
.link-more:hover {
  gap: 8px;
  color: var(--primary-dark);
}
.featured-side {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}
.guide-sm-card {
  display: flex;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.guide-sm-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.guide-sm-card .sm-img {
  width: 42%;
  min-width: 140px;
  overflow: hidden;
}
.guide-sm-card .sm-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.guide-sm-card:hover .sm-img img {
  transform: scale(1.05);
}
.guide-sm-card .sm-body {
  flex: 1;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.guide-sm-card .sm-body .badge-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.guide-sm-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 6px;
  line-height: 1.4;
}
.guide-sm-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.guide-categories {
  background: var(--white);
  padding: 90px 0;
}
.cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}
.cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  transition: all var(--transition);
  cursor: pointer;
}
.cat-tag:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}
.cat-tag .count {
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(11, 15, 20, .06);
  padding: 2px 8px;
  border-radius: 999px;
  transition: background var(--transition);
}
.cat-tag:hover .count {
  background: rgba(0, 214, 143, .12);
  color: var(--primary);
}
.cat-tag.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.cat-tag.active .count {
  background: rgba(255, 255, 255, .2);
  color: #fff;
}
.guide-steps {
  background: var(--dark);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.guide-steps::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(0, 214, 143, .08), transparent 55%);
  pointer-events: none;
}
.guide-steps .section-head h2 {
  color: var(--text-on-dark);
}
.guide-steps .section-head .sub {
  color: var(--text-on-dark-muted);
}
.step-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}
.step-card {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.step-card:hover {
  border-color: rgba(0, 214, 143, .35);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .4);
}
.step-card .step-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--primary);
  opacity: .9;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.step-card .step-icon {
  position: absolute;
  right: 22px;
  top: 28px;
  font-size: 24px;
  color: rgba(255, 255, 255, .12);
  transition: color var(--transition);
}
.step-card:hover .step-icon {
  color: var(--primary);
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin: 0 0 10px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-on-dark-muted);
  margin: 0;
  line-height: 1.7;
}
.step-line {
  display: none;
}
.guide-faq {
  background: var(--light-bg);
  padding: 96px 0;
}
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}
.faq-wrap .accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-wrap .accordion-item:first-of-type,
.faq-wrap .accordion-item:last-of-type {
  border-radius: var(--radius-lg);
}
.faq-wrap .accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--white);
  padding: 18px 24px;
  box-shadow: none;
  transition: color var(--transition), background var(--transition);
}
.faq-wrap .accordion-button:not(.collapsed) {
  color: var(--primary);
  background: var(--primary-soft);
}
.faq-wrap .accordion-button::after {
  content: '+';
  background: none;
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 400;
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), color var(--transition);
  transform: rotate(0);
}
.faq-wrap .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  color: var(--primary);
}
.faq-wrap .accordion-body {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  border-left: 3px solid var(--primary);
  margin: 0 24px 20px;
  padding-left: 14px;
  border-radius: 0;
}
.guide-cta {
  background: var(--dark);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.guide-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0, 214, 143, .12), transparent 65%);
  pointer-events: none;
}
.guide-cta .cta-inner {
  position: relative;
  z-index: 2;
}
.guide-cta h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--white);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.guide-cta p {
  font-size: 15px;
  color: var(--text-on-dark-muted);
  max-width: 480px;
  margin: 0 auto 28px;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 8px 24px var(--primary-glow);
  transform: translateY(-2px);
}
.cta-note {
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
  margin-top: 16px;
}
.site-footer {
  background: var(--dark);
  padding: 60px 0 32px;
  color: var(--text-on-dark-muted);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin-bottom: 14px;
}
.footer-logo .brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--primary);
}
.footer-logo .brand-icon svg {
  width: 15px;
  height: 15px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-on-dark-muted);
  max-width: 260px;
  margin: 0;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-on-dark);
  margin: 0 0 16px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.footer-col a {
  font-size: 13px;
  color: var(--text-on-dark-muted);
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-on-dark-muted);
  margin: 0;
}
.footer-bottom .icp-placeholder {
  font-size: 13px;
  color: rgba(255, 255, 255, .3);
}
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 991.98px) {
  .site-header .navbar {
    min-height: 64px;
  }
  .navbar-collapse {
    background: var(--white);
    padding: 16px 0;
    border-top: 1px solid var(--border);
    margin-top: 8px;
  }
  .navbar-nav {
    gap: 4px;
    margin-bottom: 12px;
  }
  .nav-right {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 0 4px;
  }
  .search-wrap {
    width: 100%;
  }
  .search-wrap input {
    height: 40px;
  }
  .btn-header.d-none {
    display: none;
  }
  .header-cta-mobile {
    display: inline-flex;
  }
  .cat-banner {
    padding: 80px 0 70px;
  }
  .cat-banner h1 {
    font-size: 40px;
  }
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .featured-side {
    grid-template-columns: 1fr;
    margin-top: 0;
  }
  .featured-guides,
  .guide-faq {
    padding: 72px 0;
  }
  .guide-steps {
    padding: 72px 0;
  }
  .step-cards {
    grid-template-columns: 1fr;
  }
  .guide-categories {
    padding: 72px 0;
  }
  .footer-cols {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .navbar-brand {
    font-size: 16px;
  }
  .cat-banner h1 {
    font-size: 32px;
  }
  .cat-banner .lead {
    font-size: 14px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .guide-main-card .card-body {
    padding: 20px;
  }
  .guide-main-card h3 {
    font-size: 19px;
  }
  .guide-sm-card {
    flex-direction: column;
  }
  .guide-sm-card .sm-img {
    width: 100%;
    min-width: 0;
    aspect-ratio: 16 / 8;
  }
  .guide-sm-card .sm-body {
    padding: 16px 18px;
  }
  .cat-tags {
    gap: 8px;
  }
  .cat-tag {
    padding: 8px 16px;
    font-size: 13px;
  }
  .guide-cta h2 {
    font-size: 28px;
  }
  .btn-cta {
    height: 48px;
    padding: 0 28px;
    font-size: 15px;
  }
  .footer-cols {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 575.98px) {
  .card-bottom-row {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
  .guide-main-card .card-footer {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

/* roulang page: article */
:root {
  --primary: #00D68F;
  --primary-dark: #00B875;
  --primary-light: rgba(0, 214, 143, 0.12);
  --accent: #FFB800;
  --ink: #0B0F14;
  --ink-2: #10161D;
  --paper: #F6F8FA;
  --white: #FFFFFF;
  --text: #2B323B;
  --text-sub: #6B7684;
  --border: #E3E8EE;
  --border-dark: rgba(255, 255, 255, 0.08);
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(11, 15, 20, 0.04);
  --shadow-md: 0 10px 30px rgba(11, 15, 20, 0.10);
  --shadow-dark: 0 8px 24px rgba(0, 0, 0, 0.40);
  --ff: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; border: none; outline: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
@media (max-width: 767.98px) {
  .container { padding-left: 16px; padding-right: 16px; }
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: var(--white);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(11, 15, 20, 0.06);
  border-bottom-color: var(--border);
}
.site-header .navbar {
  padding: 14px 0;
  transition: padding 0.3s ease;
}
.site-header.scrolled .navbar {
  padding: 6px 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 18px;
  font-weight: 700;
  color: #1A1D21;
  gap: 8px;
}
.navbar-brand:hover { color: #1A1D21; }
.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-icon svg { width: 20px; height: 20px; }
.navbar-nav { gap: 6px; }
.navbar-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  position: relative;
}
.navbar-nav .nav-link:hover { color: var(--primary-dark); }
.navbar-nav .nav-link.active { color: var(--primary); font-weight: 600; }
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  background: var(--primary);
  border-radius: 99px;
}
.dropdown-menu {
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(11, 15, 20, 0.10);
  padding: 8px;
  min-width: 160px;
}
.dropdown-item {
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  padding: 10px 14px;
}
.dropdown-item:hover { background: var(--paper); color: var(--primary-dark); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-wrap {
  width: 220px;
  height: 38px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-wrap input {
  width: 100%;
  background: transparent;
  font-size: 13px;
  color: var(--text);
}
.search-wrap input::placeholder { color: #9AA6B2; }
.search-wrap i { color: #9AA6B2; font-size: 14px; flex-shrink: 0; margin-left: 4px; }
.search-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 214, 143, 0.12);
}
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-xs);
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s, box-shadow 0.2s;
}
.btn-header:hover { background: var(--primary-dark); color: #fff; box-shadow: 0 4px 14px rgba(0, 214, 143, 0.3); }
.header-cta-mobile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-weight: 600;
}
.header-cta-mobile:hover { background: var(--primary-dark); color: #fff; }
.navbar-toggler {
  border: none;
  padding: 8px 10px;
  font-size: 18px;
  color: var(--text);
  background: var(--paper);
  border-radius: 8px;
  width: 44px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.navbar-toggler:hover, .navbar-toggler:focus { background: var(--border); color: var(--text); }

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  background: linear-gradient(rgba(4, 8, 12, 0.55), rgba(4, 8, 12, 0.85)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 76px 0 72px;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-nav {
  font-size: 13px;
  color: #B7C0CC;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumb-nav a { color: #B7C0CC; transition: color 0.2s; }
.breadcrumb-nav a:hover { color: var(--primary); }
.breadcrumb-nav i { font-size: 10px; color: #6B7684; }
.breadcrumb-nav span { color: #E6EDF3; max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }
.article-hero h1 {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  max-width: 760px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: #B7C0CC;
}
.badge-cat {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 99px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  background: rgba(0, 214, 143, 0.06);
}
.meta-date, .meta-author { display: inline-flex; align-items: center; gap: 6px; }
.meta-date i, .meta-author i { font-size: 13px; color: #6B7684; }

/* ===== Article Main ===== */
.article-main {
  background: var(--white);
  padding: 56px 0 80px;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: #1A1D21;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 30px 0 12px;
  color: #1A1D21;
}
.article-body p {
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}
.article-body img {
  border-radius: 12px;
  margin: 24px auto;
  box-shadow: var(--shadow-sm);
}
.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--paper);
  padding: 16px 22px;
  margin: 24px 0;
  border-radius: 0 10px 10px 0;
  color: var(--text-sub);
  font-style: normal;
}
.article-body ul, .article-body ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
.article-body li {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.7;
}
.article-body a { color: var(--primary-dark); font-weight: 500; }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-body th { background: var(--paper); font-weight: 600; border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.article-body td { border: 1px solid var(--border); padding: 10px 12px; }

/* ===== Article Footer ===== */
.article-footer {
  max-width: 760px;
  margin: 48px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 13px;
  color: var(--text-sub);
  transition: all 0.2s;
}
.tag:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-light);
}
.article-back {
  font-size: 14px;
  font-weight: 500;
}
.article-back a {
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
}
.article-back a:hover { color: var(--primary-dark); }
.article-back a i { font-size: 12px; }

/* ===== Not Found ===== */
.not-found-box {
  max-width: 600px;
  margin: 40px auto;
  text-align: center;
  padding: 60px 40px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.not-found-box i {
  font-size: 48px;
  color: #C0C9D4;
  margin-bottom: 16px;
}
.not-found-box p {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
}
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-xs);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.btn-brand:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 214, 143, 0.3);
  transform: translateY(-2px);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-xs);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.1); color: #fff; border-color: #fff; }

/* ===== Related Section ===== */
.related-section {
  background: var(--paper);
  padding: 76px 0 88px;
}
.section-head {
  text-align: center;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
}
.section-head p {
  font-size: 14px;
  color: var(--text-sub);
}
.related-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  height: 100%;
  transition: all 0.3s ease;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--primary);
}
.related-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.04); }
.related-body {
  padding: 20px 22px 24px;
}
.related-body .badge-cat { margin-bottom: 10px; }
.related-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.read-more i { font-size: 11px; }
.related-card:hover .read-more { gap: 10px; }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--ink);
  padding: 84px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 214, 143, 0.16) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}
.cta-section p {
  font-size: 15px;
  color: #9AA6B2;
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}
.cta-section .btn-brand {
  height: 50px;
  padding: 0 36px;
  font-size: 16px;
  position: relative;
  z-index: 2;
}
.cta-note {
  font-size: 13px;
  color: #6B7684;
  margin-top: 18px;
  position: relative;
  z-index: 2;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--ink);
  padding: 64px 0 24px;
  color: #9AA6B2;
  font-size: 14px;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-dark);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 13px;
  color: #9AA6B2;
  max-width: 280px;
  line-height: 1.7;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #E6EDF3;
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: #9AA6B2;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
}
.footer-bottom p { margin: 0; font-size: 13px; color: #6B7684; }
.icp-placeholder { font-size: 13px; color: #6B7684; }
.site-footer .btn-header { height: 36px; font-size: 13px; padding: 0 16px; }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .site-header .navbar { padding: 10px 0; }
  .navbar-collapse {
    width: 100%;
    padding: 12px 0;
  }
  .navbar-nav { flex-direction: column; gap: 2px; }
  .navbar-nav .nav-link { padding: 10px 12px; }
  .navbar-nav .nav-link.active::after { display: none; }
  .nav-right {
    margin-top: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .search-wrap { width: 100%; }
  .btn-header.d-none.d-lg-inline-flex { display: inline-flex !important; width: 100%; }
  .footer-cols {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}
@media (max-width: 767.98px) {
  .article-hero { padding: 56px 0 48px; }
  .article-hero h1 { font-size: 30px; }
  .article-main { padding: 36px 0 56px; }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 18px; }
  .article-footer { flex-direction: column; align-items: flex-start; }
  .related-section { padding: 56px 0 64px; }
  .cta-section { padding: 56px 0; }
  .cta-section h2 { font-size: 26px; }
  .footer-cols { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .search-wrap { margin-bottom: 4px; }
}
@media (max-width: 575.98px) {
  .breadcrumb-nav span { max-width: 160px; }
  .related-body { padding: 16px 18px 20px; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --brand: #00D68F;
  --brand-light: #4CE6B0;
  --brand-dark: #00A972;
  --dark: #0B0F14;
  --dark-2: #10161D;
  --light: #F6F8FA;
  --white: #FFFFFF;
  --accent: #FFB800;
  --text-main: #2B323B;
  --text-muted: #6B7684;
  --text-dark: #E6EDF3;
  --text-dark-muted: #9AA6B2;
  --border-light: #E3E8EE;
  --border-dark: rgba(255,255,255,0.08);
  --radius-btn: 6px;
  --radius-card: 14px;
  --radius-img: 12px;
  --radius-input: 8px;
  --shadow-card: 0 2px 8px rgba(11,15,20,0.04);
  --shadow-hover: 0 10px 30px rgba(11,15,20,0.10);
  --shadow-dark-card: 0 0 0 1px rgba(255,255,255,0.06);
  --shadow-dark-hover: 0 8px 24px rgba(0,0,0,0.40);
  --transition: 0.2s ease;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ========== Reset / Base ========== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}
button, input {
  font-family: inherit;
}
ul {
  list-style: none;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border-light);
  height: 72px;
  transition: height 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  height: 60px;
  box-shadow: 0 4px 20px rgba(11,15,20,0.06);
}
.site-header .container {
  max-width: 1280px;
  padding: 0 24px;
  height: 100%;
}
.site-header .navbar {
  padding: 0;
  height: 100%;
}
.site-header .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #1A1D21;
  padding: 0;
  margin: 0;
}
.site-header .brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.site-header .brand-icon svg {
  width: 20px;
  height: 20px;
}
.site-header .navbar-nav {
  gap: 4px;
}
.site-header .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  padding: 8px 16px !important;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}
.site-header .nav-link:hover {
  color: var(--brand-dark);
  background: rgba(0,214,143,0.06);
}
.site-header .nav-link.active {
  color: var(--brand);
  font-weight: 600;
}
.site-header .nav-link.dropdown-toggle::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  border: none;
  font-size: 10px;
  margin-left: 6px;
  vertical-align: middle;
}
.site-header .dropdown-menu {
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(11,15,20,0.10);
  padding: 8px;
  margin-top: 8px !important;
}
.site-header .dropdown-item {
  font-size: 14px;
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease;
}
.site-header .dropdown-item:hover,
.site-header .dropdown-item.active {
  background: rgba(0,214,143,0.08);
  color: var(--brand-dark);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-header .search-wrap {
  position: relative;
}
.site-header .search-wrap input {
  width: 220px;
  height: 38px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  background: var(--light);
  padding: 0 16px 0 38px;
  font-size: 13px;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header .search-wrap input::placeholder {
  color: var(--text-muted);
}
.site-header .search-wrap input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(0,214,143,0.12);
}
.site-header .search-wrap i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-muted);
  pointer-events: none;
}
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-header:hover {
  background: var(--brand-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,214,143,0.30);
}
.header-cta-mobile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  background: var(--brand);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  white-space: nowrap;
}
.site-header .navbar-toggler {
  border: none;
  background: none;
  padding: 8px;
  color: var(--text-main);
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}
.site-header .navbar-toggler:focus {
  box-shadow: none;
}
@media (max-width: 991px) {
  .site-header {
    height: auto;
    min-height: 72px;
  }
  .site-header .navbar-brand {
    font-size: 16px;
  }
  .site-header .container {
    padding: 0 16px;
    flex-wrap: wrap;
  }
  .site-header .navbar-collapse {
    background: var(--white);
    border-top: 1px solid var(--border-light);
    padding: 16px 0;
    margin: 0 -16px;
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-header .navbar-nav {
    gap: 0;
    margin-bottom: 12px !important;
  }
  .site-header .nav-link {
    padding: 12px 8px !important;
    font-size: 15px;
  }
  .site-header .dropdown-menu {
    border: none;
    box-shadow: none;
    padding: 0 0 0 16px;
    margin: 0 !important;
  }
  .site-header .dropdown-item {
    padding: 10px 12px;
  }
  .nav-right {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .site-header .search-wrap input {
    width: 100%;
  }
}

/* ========== 页面主体 ========== */
.main-wrapper {
  overflow: hidden;
}
.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) {
  .container-custom {
    padding: 0 16px;
  }
}

/* ========== 分类页2 顶部标题行 ========== */
.cat2-head {
  padding: 64px 0 40px;
  background: var(--white);
}
.cat2-head-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cat2-head-left {
  display: flex;
  align-items: center;
  gap: 18px;
}
.cat2-head-bar {
  width: 4px;
  height: 48px;
  background: var(--brand);
  border-radius: 4px;
  flex-shrink: 0;
}
.cat2-head h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
  line-height: 1.3;
}
.cat2-head-desc {
  max-width: 560px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: right;
}
@media (max-width: 768px) {
  .cat2-head {
    padding: 40px 0 24px;
  }
  .cat2-head-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cat2-head-desc {
    text-align: left;
    padding-left: 22px;
  }
  .cat2-head-bar {
    height: 40px;
  }
}

/* ========== 横向宽卡片列表 ========== */
.cat2-cards {
  padding: 16px 0 80px;
  background: var(--white);
}
.cat2-cards-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.cat2-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
  border-left: 3px solid transparent;
}
.cat2-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-left-color: var(--brand);
}
.cat2-card-img {
  width: 240px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 0;
}
.cat2-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.cat2-card:hover .cat2-card-img img {
  transform: scale(1.04);
}
.cat2-card-body {
  flex: 1;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cat2-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}
.cat2-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cat2-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease, color 0.2s ease;
}
.cat2-card-link i {
  font-size: 12px;
}
.cat2-card-link:hover {
  color: var(--brand);
  gap: 10px;
}
@media (max-width: 991px) {
  .cat2-card-img {
    width: 200px;
  }
  .cat2-card-body {
    padding: 20px 24px;
  }
}
@media (max-width: 768px) {
  .cat2-cards {
    padding-bottom: 56px;
  }
  .cat2-card {
    flex-direction: column;
    border-left: 3px solid transparent;
  }
  .cat2-card-img {
    width: 100%;
    height: 200px;
  }
  .cat2-card-body {
    padding: 20px;
  }
  .cat2-card-body h3 {
    font-size: 18px;
  }
}

/* ========== 数据带（深色） ========== */
.cat2-stats {
  background: var(--dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cat2-stats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, rgba(0,214,143,0.10) 0%, transparent 45%);
  pointer-events: none;
}
.cat2-stats .section-label {
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cat2-stats h2 {
  color: var(--text-dark);
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 48px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  background: var(--dark-2);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.stat-item:hover {
  border-color: rgba(0,214,143,0.35);
  box-shadow: var(--shadow-dark-hover);
}
.stat-num {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-dark-muted);
  letter-spacing: 1px;
}
@media (max-width: 991px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .cat2-stats {
    padding: 56px 0;
  }
  .cat2-stats h2 {
    font-size: 24px;
    margin-bottom: 32px;
  }
  .stat-item {
    padding: 24px 16px;
  }
  .stat-num {
    font-size: 32px;
  }
}

/* ========== 赛事覆盖矩阵 ========== */
.cat2-matrix {
  padding: 96px 0;
  background: var(--light);
}
.section-head-centered {
  text-align: center;
  margin-bottom: 48px;
}
.section-head-centered .section-label {
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-head-centered h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-head-centered p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
}
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.matrix-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.matrix-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(0,214,143,0.35);
}
.matrix-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0,214,143,0.10);
  color: var(--brand-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.matrix-info h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}
.matrix-info p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}
@media (max-width: 991px) {
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .cat2-matrix {
    padding: 56px 0;
  }
  .section-head-centered h2 {
    font-size: 24px;
  }
  .matrix-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== 服务流程（路径感） ========== */
.cat2-process {
  padding: 96px 0;
  background: var(--dark);
}
.cat2-process .section-label {
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cat2-process h2 {
  color: var(--text-dark);
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 48px;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.process-grid::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 15%;
  right: 15%;
  height: 2px;
  border-top: 2px dashed rgba(0,214,143,0.30);
  z-index: 0;
}
.process-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
}
.process-circle {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--dark-2);
  border: 1px solid var(--brand);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  box-shadow: 0 0 0 8px rgba(0,214,143,0.08);
}
.process-step h3 {
  color: var(--text-dark);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  color: var(--text-dark-muted);
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}
@media (max-width: 991px) {
  .process-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .process-grid::before {
    display: none;
  }
}
@media (max-width: 768px) {
  .cat2-process {
    padding: 56px 0;
  }
  .cat2-process h2 {
    font-size: 24px;
    margin-bottom: 32px;
  }
}

/* ========== FAQ ========== */
.cat2-faq {
  padding: 96px 0;
  background: var(--white);
}
.cat2-faq .container-custom {
  max-width: 860px;
}
.accordion-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 12px !important;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.accordion-button {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--white);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: none;
  box-shadow: none;
}
.accordion-button::after {
  display: none;
}
.accordion-button:not(.collapsed) {
  color: var(--brand-dark);
  background: var(--white);
}
.accordion-button:focus {
  box-shadow: none;
  border-color: var(--brand);
}
.accordion-button .accordion-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0,214,143,0.10);
  color: var(--brand-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}
.accordion-button:not(.collapsed) .accordion-icon {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
}
.accordion-body {
  padding: 0 24px 20px 62px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  border-left: 3px solid var(--brand);
  margin-left: 24px;
  margin-right: 24px;
  margin-bottom: 20px;
  border-radius: 0;
}
@media (max-width: 768px) {
  .cat2-faq {
    padding: 56px 0;
  }
  .accordion-body {
    padding: 0 16px 16px 16px;
    margin-left: 16px;
    margin-right: 16px;
  }
}

/* ========== CTA ========== */
.cat2-cta {
  padding: 96px 0;
  background: var(--dark) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  position: relative;
  text-align: center;
}
.cat2-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(4,8,12,0.55), rgba(4,8,12,0.85));
}
.cat2-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}
.cat2-cta h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cat2-cta p {
  color: var(--text-dark-muted);
  font-size: 15px;
  margin-bottom: 32px;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 36px;
  background: var(--brand);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-cta:hover {
  background: var(--brand-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0,214,143,0.35);
}
.cta-note {
  color: var(--text-dark-muted);
  font-size: 13px;
  margin-top: 16px;
}
@media (max-width: 768px) {
  .cat2-cta {
    padding: 56px 0;
  }
  .cat2-cta h2 {
    font-size: 24px;
  }
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark);
  padding: 80px 0 0;
  color: var(--text-dark-muted);
}
.site-footer .container {
  max-width: 1280px;
  padding: 0 24px;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-logo .brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-logo .brand-icon svg {
  width: 16px;
  height: 16px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dark-muted);
  max-width: 260px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-dark-muted);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col ul li a:hover {
  color: var(--brand);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-dark-muted);
  margin: 0;
}
.footer-bottom .icp-placeholder {
  font-size: 13px;
  color: rgba(154,166,178,0.6);
}
@media (max-width: 991px) {
  .footer-cols {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .site-footer {
    padding-top: 56px;
  }
  .site-footer .container {
    padding: 0 16px;
  }
  .footer-cols {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ========== 通用动画 ========== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.animate-fade-up {
  animation: fadeUp 0.6s ease-out both;
}
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* roulang page: category3 */
:root {
      --primary: #00D68F;
      --primary-dark: #00B87A;
      --primary-glow: rgba(0, 214, 143, 0.25);
      --dark-bg: #0B0F14;
      --dark-bg-2: #10161D;
      --dark-card: #121A22;
      --light-bg: #F6F8FA;
      --white: #FFFFFF;
      --accent: #FFB800;
      --text-dark: #2B323B;
      --text-subtle: #6B7684;
      --text-light: #E6EDF3;
      --text-light-subtle: #9AA6B2;
      --border-light: #E3E8EE;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius-btn: 6px;
      --radius-card: 14px;
      --radius-img: 12px;
      --radius-input: 8px;
      --shadow-sm: 0 2px 8px rgba(11, 15, 20, 0.04);
      --shadow-hover: 0 10px 30px rgba(11, 15, 20, 0.10);
      --shadow-dark: 0 0 0 1px rgba(255, 255, 255, 0.06);
      --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.40), 0 0 0 1px rgba(0, 214, 143, 0.35);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-dark);
      background: var(--white);
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

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

    button,
    input {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== 导航栏 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1050;
      background: var(--white);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 1px 4px rgba(11, 15, 20, 0.02);
      transition: box-shadow 0.25s, border-color 0.25s;
    }

    .site-header .navbar {
      min-height: 72px;
      padding: 0;
      transition: min-height 0.25s;
    }

    .site-header.scrolled .navbar {
      min-height: 60px;
    }

    .site-header.scrolled {
      box-shadow: 0 4px 16px rgba(11, 15, 20, 0.06);
    }

    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 18px;
      font-weight: 700;
      color: #1A1D21;
      padding: 0;
      margin-right: 0;
    }

    .navbar-brand:hover {
      color: var(--primary);
    }

    .brand-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      box-shadow: 0 0 0 4px rgba(0, 214, 143, 0.15);
    }

    .brand-icon svg {
      width: 20px;
      height: 20px;
      display: block;
    }

    .navbar-nav {
      gap: 2px;
    }

    .nav-link {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-dark);
      padding: 10px 16px !important;
      border-radius: var(--radius-btn);
      transition: color 0.2s, background-color 0.2s;
    }

    .nav-link:hover {
      color: var(--primary-dark);
      background: rgba(0, 214, 143, 0.04);
    }

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

    .nav-link.dropdown-toggle::after {
      border-top-color: currentColor;
      vertical-align: middle;
      margin-left: 4px;
      font-size: 10px;
    }

    .dropdown-menu {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-hover);
      padding: 8px;
      min-width: 170px;
    }

    .dropdown-item {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-dark);
      border-radius: 10px;
      padding: 9px 14px;
      transition: background-color 0.2s, color 0.2s;
    }

    .dropdown-item:hover,
    .dropdown-item:focus {
      background: rgba(0, 214, 143, 0.06);
      color: var(--primary);
    }

    .dropdown-item.active {
      background: rgba(0, 214, 143, 0.10);
      color: var(--primary);
      font-weight: 600;
    }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .search-wrap {
      position: relative;
      width: 220px;
    }

    .search-wrap input {
      width: 100%;
      height: 38px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-input);
      background: var(--light-bg);
      padding: 0 36px 0 14px;
      font-size: 14px;
      color: var(--text-dark);
      transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
    }

    .search-wrap input:focus {
      outline: none;
      border-color: var(--primary);
      background: var(--white);
      box-shadow: 0 0 0 3px var(--primary-glow);
    }

    .search-wrap i {
      position: absolute;
      right: 13px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 14px;
      color: var(--text-subtle);
      pointer-events: none;
    }

    .btn-header {
      height: 40px;
      padding: 0 20px;
      background: var(--primary);
      color: var(--white);
      font-size: 14px;
      font-weight: 600;
      border: none;
      border-radius: var(--radius-btn);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
    }

    .btn-header:hover {
      background: var(--primary-dark);
      box-shadow: 0 0 0 4px var(--primary-glow);
      color: var(--white);
      transform: translateY(-1px);
    }

    .header-cta-mobile {
      height: 36px;
      padding: 0 14px;
      background: var(--primary);
      color: var(--white);
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-btn);
      display: inline-flex;
      align-items: center;
      white-space: nowrap;
    }

    .navbar-toggler {
      border: none;
      font-size: 20px;
      color: var(--text-dark);
      padding: 6px 10px;
      border-radius: var(--radius-btn);
      background: var(--light-bg);
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px var(--primary-glow);
    }

    @media (max-width: 991px) {
      .navbar-collapse {
        padding: 16px 0 8px;
        border-top: 1px solid var(--border-light);
        margin-top: 10px;
      }

      .navbar-nav {
        gap: 0;
        margin-bottom: 12px;
      }

      .nav-link {
        padding: 10px 12px !important;
        border-radius: 10px;
      }

      .nav-right {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding-bottom: 8px;
      }

      .search-wrap {
        width: 100%;
      }
    }

    /* ===== 分屏 Hero ===== */
    .split-hero {
      background: linear-gradient(135deg, var(--dark-bg) 0%, #0e151d 55%, #121c24 100%);
      padding: 80px 0 90px;
      border-bottom: 1px solid var(--border-dark);
      position: relative;
      overflow: hidden;
    }

    .split-hero::before {
      content: '';
      position: absolute;
      top: -120px;
      left: -80px;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(0, 214, 143, 0.12) 0%, transparent 70%);
      pointer-events: none;
    }

    .split-hero::after {
      content: '';
      position: absolute;
      bottom: -100px;
      right: -60px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(255, 184, 0, 0.08) 0%, transparent 70%);
      pointer-events: none;
    }

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

    .split-hero .row {
      align-items: center;
    }

    .split-hero-copy {
      padding-right: 30px;
    }

    .split-hero-copy .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      background: rgba(0, 214, 143, 0.08);
      border: 1px solid rgba(0, 214, 143, 0.25);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 18px;
    }

    .split-hero-copy .eyebrow i {
      font-size: 12px;
    }

    .split-hero-copy h1 {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-light);
      line-height: 1.2;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .split-hero-copy h1 span {
      color: var(--primary);
    }

    .split-hero-copy p {
      color: var(--text-light-subtle);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 22px;
      max-width: 480px;
    }

    .split-hero-copy .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 28px;
    }

    .hero-meta-item {
      display: flex;
      flex-direction: column;
    }

    .hero-meta-item strong {
      font-size: 30px;
      font-weight: 800;
      color: var(--accent);
      font-variant-numeric: tabular-nums;
      line-height: 1.1;
    }

    .hero-meta-item span {
      font-size: 13px;
      color: var(--text-light-subtle);
      margin-top: 2px;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .btn-primary-custom {
      height: 48px;
      padding: 0 28px;
      background: var(--primary);
      color: var(--white);
      font-size: 15px;
      font-weight: 600;
      border: none;
      border-radius: var(--radius-btn);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
    }

    .btn-primary-custom:hover {
      background: var(--primary-dark);
      box-shadow: 0 0 0 5px var(--primary-glow);
      color: var(--white);
      transform: translateY(-2px);
    }

    .btn-outline-custom {
      height: 48px;
      padding: 0 28px;
      background: transparent;
      color: var(--text-light);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.35);
      border-radius: var(--radius-btn);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: border-color 0.2s, color 0.2s, background-color 0.2s, transform 0.2s;
    }

    .btn-outline-custom:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(0, 214, 143, 0.05);
      transform: translateY(-2px);
    }

    .split-hero-visual {
      position: relative;
    }

    .split-hero-visual .hero-img-wrap {
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
    }

    .split-hero-visual img {
      width: 100%;
      height: 360px;
      object-fit: cover;
      display: block;
    }

    .hero-img-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(11, 15, 20, 0.82);
      color: var(--accent);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.04em;
      padding: 5px 14px;
      border-radius: 999px;
      border: 1px solid rgba(255, 184, 0, 0.3);
      backdrop-filter: blur(4px);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-img-tag .pulse-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent);
      animation: pulse 1.6s infinite;
    }

    @keyframes pulse {
      0%,
      100% {
        opacity: 1;
        transform: scale(1);
      }
      50% {
        opacity: 0.6;
        transform: scale(1.4);
      }
    }

    /* ===== 编号折叠区 ===== */
    .numbered-collapse {
      background: var(--white);
      padding: 96px 0;
    }

    .section-head {
      margin-bottom: 48px;
    }

    .section-head .sec-no {
      display: block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.06em;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .section-head h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 8px;
      letter-spacing: -0.01em;
    }

    .section-head p {
      font-size: 15px;
      color: var(--text-subtle);
      max-width: 520px;
    }

    .num-item {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      background: var(--white);
      margin-bottom: 16px;
      overflow: hidden;
      transition: box-shadow 0.25s, border-color 0.25s;
    }

    .num-item:hover {
      border-color: rgba(0, 214, 143, 0.4);
      box-shadow: var(--shadow-hover);
    }

    .num-item-header {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 20px 24px;
      cursor: pointer;
      border: none;
      background: transparent;
      width: 100%;
      text-align: left;
      font-family: inherit;
      transition: background-color 0.2s;
      border-radius: var(--radius-card);
    }

    .num-item-header:hover {
      background: rgba(0, 214, 143, 0.02);
    }

    .num-item-header .num {
      font-size: 48px;
      font-weight: 800;
      color: rgba(0, 214, 143, 0.5);
      line-height: 1;
      min-width: 64px;
      font-variant-numeric: tabular-nums;
      transition: color 0.2s;
    }

    .num-item:hover .num-item-header .num {
      color: var(--primary);
    }

    .num-item-header .num-text {
      flex: 1;
    }

    .num-item-header .num-text h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-dark);
      margin: 0 0 4px;
    }

    .num-item-header .num-text p {
      font-size: 14px;
      color: var(--text-subtle);
      margin: 0;
      line-height: 1.6;
    }

    .num-item-header .expand-icon {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--light-bg);
      border: 1px solid var(--border-light);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--text-subtle);
      font-size: 14px;
      flex-shrink: 0;
      transition: all 0.3s;
    }

    .num-item[data-open="true"] .expand-icon {
      background: rgba(0, 214, 143, 0.10);
      border-color: rgba(0, 214, 143, 0.4);
      color: var(--primary);
      transform: rotate(135deg);
    }

    .num-item-body {
      padding: 4px 24px 28px;
      border-top: 1px solid transparent;
    }

    .num-item[data-open="true"] .num-item-body {
      border-top-color: var(--border-light);
    }

    .num-item-body .inner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 20px;
    }

    .num-item-body .inner-card {
      background: var(--light-bg);
      border-radius: 12px;
      padding: 16px 18px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }

    .num-item-body .inner-card i {
      color: var(--primary);
      font-size: 16px;
      margin-top: 3px;
      flex-shrink: 0;
    }

    .num-item-body .inner-card strong {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 2px;
    }

    .num-item-body .inner-card span {
      font-size: 13px;
      color: var(--text-subtle);
      line-height: 1.5;
    }

    @media (max-width: 768px) {
      .num-item-header {
        gap: 12px;
        padding: 16px;
      }

      .num-item-header .num {
        font-size: 40px;
        min-width: 48px;
      }

      .num-item-header .num-text h3 {
        font-size: 16px;
      }

      .num-item-header .num-text p {
        font-size: 13px;
      }

      .num-item-body {
        padding: 4px 16px 20px;
      }

      .num-item-body .inner-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 价值卖点 ===== */
    .value-section {
      background: var(--light-bg);
      padding: 96px 0;
    }

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

    .value-card {
      background: var(--white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }

    .value-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 214, 143, 0.25);
    }

    .value-card .icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(0, 214, 143, 0.10);
      color: var(--primary);
      font-size: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
    }

    .value-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
    }

    .value-card p {
      font-size: 14px;
      color: var(--text-subtle);
      line-height: 1.7;
      margin: 0;
    }

    @media (max-width: 991px) {
      .value-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 576px) {
      .value-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 适用场景 ===== */
    .scenario-section {
      background: var(--white);
      padding: 96px 0;
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: var(--light-bg);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 30px 28px;
      position: relative;
      transition: transform 0.25s, box-shadow 0.25s;
    }

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

    .scenario-card .role-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(0, 214, 143, 0.10);
      padding: 3px 12px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    .scenario-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .scenario-card p {
      font-size: 14px;
      color: var(--text-subtle);
      line-height: 1.7;
      margin: 0;
    }

    .scenario-card .scenario-points {
      margin-top: 18px;
      list-style: none;
      padding: 0;
    }

    .scenario-card .scenario-points li {
      font-size: 13px;
      color: var(--text-subtle);
      padding: 3px 0;
      display: flex;
      gap: 8px;
      align-items: center;
    }

    .scenario-card .scenario-points li i {
      color: var(--primary);
      font-size: 11px;
    }

    @media (max-width: 991px) {
      .scenario-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
      }
    }

    /* ===== 流程 ===== */
    .process-section {
      background: var(--dark-bg);
      padding: 96px 0;
      position: relative;
    }

    .process-section .section-head h2 {
      color: var(--text-light);
    }

    .process-section .section-head p {
      color: var(--text-light-subtle);
    }

    .process-step {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      margin-bottom: 32px;
      padding: 24px;
      background: var(--dark-bg-2);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-card);
      transition: border-color 0.25s, box-shadow 0.25s;
    }

    .process-step:hover {
      border-color: rgba(0, 214, 143, 0.35);
      box-shadow: var(--shadow-dark-hover);
    }

    .process-num {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(0, 214, 143, 0.12);
      border: 1px solid rgba(0, 214, 143, 0.2);
      color: var(--primary);
      font-size: 18px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-variant-numeric: tabular-nums;
    }

    .process-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 6px;
    }

    .process-body p {
      font-size: 14px;
      color: var(--text-light-subtle);
      margin: 0;
      line-height: 1.6;
    }

    @media (min-width: 992px) {
      .process-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
      }

      .process-step {
        margin-bottom: 0;
      }
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--light-bg);
      padding: 96px 0;
    }

    .faq-accordion {
      max-width: 760px;
      margin: 0 auto;
    }

    .faq-accordion .accordion-item {
      background: var(--white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card) !important;
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-accordion .accordion-button {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-dark);
      background: var(--white);
      padding: 20px 24px;
      border: none;
      box-shadow: none;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .faq-accordion .accordion-button::after {
      display: none;
    }

    .faq-accordion .accordion-button .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--light-bg);
      border: 1px solid var(--border-light);
      color: var(--text-subtle);
      font-size: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s;
      flex-shrink: 0;
    }

    .faq-accordion .accordion-button:not(.collapsed) {
      color: var(--primary);
      background: rgba(0, 214, 143, 0.03);
    }

    .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
      background: rgba(0, 214, 143, 0.10);
      border-color: rgba(0, 214, 143, 0.4);
      color: var(--primary);
      transform: rotate(135deg);
    }

    .faq-accordion .accordion-button:focus {
      box-shadow: 0 0 0 3px var(--primary-glow);
      border-color: var(--primary);
    }

    .faq-accordion .accordion-body {
      padding: 0 24px 22px 64px;
      font-size: 14px;
      color: var(--text-subtle);
      line-height: 1.75;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--dark-bg);
      padding: 90px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(0, 214, 143, 0.08) 0%, transparent 70%);
      transform: translate(-50%, -50%);
      pointer-events: none;
    }

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

    .cta-section h2 {
      font-size: 36px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .cta-section h2 span {
      color: var(--primary);
    }

    .cta-section p {
      font-size: 15px;
      color: var(--text-light-subtle);
      max-width: 480px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }

    .cta-section .cta-btn-group {
      display: flex;
      justify-content: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .cta-note {
      margin-top: 20px;
      font-size: 13px;
      color: var(--text-light-subtle);
      opacity: 0.8;
    }

    /* ===== 状态条 ===== */
    .status-bar {
      background: var(--dark-bg);
      padding: 0 0 60px;
      text-align: center;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--dark-bg-2);
      border: 1px solid var(--border-dark);
      color: var(--text-light-subtle);
      font-size: 13px;
      padding: 8px 22px;
      border-radius: 999px;
    }

    .status-pill i {
      color: var(--primary);
      font-size: 12px;
      animation: blink 2s infinite;
    }

    @keyframes blink {
      0%,
      100% {
        opacity: 1;
      }
      50% {
        opacity: 0.4;
      }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark-bg);
      border-top: 1px solid var(--border-dark);
      padding: 64px 0 0;
    }

    .footer-cols {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .footer-brand .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 13px;
      color: var(--text-light-subtle);
      max-width: 280px;
      line-height: 1.7;
      margin: 0;
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      letter-spacing: 0.02em;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul a {
      font-size: 13px;
      color: var(--text-light-subtle);
      transition: color 0.2s, padding-left 0.2s;
    }

    .footer-col ul a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding: 20px 0 24px;
    }

    .footer-bottom p {
      font-size: 13px;
      color: var(--text-light-subtle);
      margin: 0;
    }

    .icp-placeholder {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.3);
    }

    @media (max-width: 768px) {
      .footer-cols {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 576px) {
      .footer-cols {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }

    /* ===== 通用响应式 ===== */
    @media (max-width: 768px) {
      .split-hero {
        padding: 56px 0 64px;
      }

      .split-hero-copy {
        padding-right: 0;
        margin-bottom: 36px;
      }

      .split-hero-copy h1 {
        font-size: 26px;
      }

      .hero-meta-item strong {
        font-size: 24px;
      }

      .btn-primary-custom,
      .btn-outline-custom {
        width: 100%;
      }

      .split-hero-visual img {
        height: 240px;
      }

      .numbered-collapse,
      .value-section,
      .scenario-section,
      .process-section,
      .faq-section,
      .cta-section {
        padding: 64px 0;
      }

      .section-head h2 {
        font-size: 24px;
      }

      .cta-section h2 {
        font-size: 26px;
      }
    }

    @media (max-width: 576px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .hero-btn-group {
        flex-direction: column;
      }

      .value-grid,
      .scenario-grid {
        grid-template-columns: 1fr;
      }

      .process-step {
        padding: 16px;
      }
    }

    /* ===== 动效 ===== */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }