/* roulang page: index */
:root {
  --primary: #1a5cff;
  --primary-dark: #0e3fbf;
  --primary-light: #eef3ff;
  --accent: #ff6a3d;
  --accent-light: #fff1ec;
  --dark: #0f1c2e;
  --dark-soft: #1d2b3f;
  --text: #24344d;
  --text-light: #5b6b82;
  --text-muted: #8b98ad;
  --bg: #f6f8fc;
  --bg-white: #ffffff;
  --bg-dark: #0d1829;
  --border: #e5eaf2;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(15, 28, 46, 0.06);
  --shadow: 0 8px 30px rgba(15, 28, 46, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 28, 46, 0.14);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; font-size: 16px; }

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 90px 0; }

.overflow-grid { overflow: hidden; }
#newsletter-success { display: none; }

/* ======= Header ======= */
.site-header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 74px;
  display: flex;
  align-items: center;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  width: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), #4a7fff);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(26, 92, 255, 0.3);
}
.logo-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 2px;
}
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.main-nav a {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 999px;
  white-space: nowrap;
}
.main-nav a:hover { background: var(--primary-light); color: var(--primary); }
.main-nav a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(26, 92, 255, 0.25); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.trend-tag {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.trend-tag i { color: var(--accent); font-size: 12px; }
.nav-cta {
  background: var(--dark);
  color: #fff;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-cta:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }

.hamburger {
  display: none;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  width: 44px; height: 40px;
  cursor: pointer;
  color: var(--dark);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.hamburger:hover { border-color: var(--primary); color: var(--primary); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 74px;
  left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 18px 24px 24px;
  box-shadow: var(--shadow);
  z-index: 999;
  border-radius: 0 0 20px 20px;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  border-radius: 12px;
  border-bottom: 1px solid #f2f4f8;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover, .mobile-nav a.active { background: var(--primary-light); color: var(--primary); }

/* ======= Hero ======= */
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(13,24,41,0.88), rgba(15,28,46,0.78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(13,24,41,0.65));
}
.hero .container { position: relative; z-index: 2; max-width: 1200px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.24);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-badge i { color: #ffd166; font-size: 13px; }
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
  max-width: 720px;
  margin-bottom: 20px;
}
.hero h1 span {
  background: linear-gradient(120deg, #79a7ff, #9db8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-primary:hover { background: #2a6bff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26, 92, 255, 0.4); }
.btn-outline {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.35);
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 34px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.18);
  align-items: center;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-size: 28px; font-weight: 800; line-height: 1.3; }
.hero-stat strong i { font-size: 18px; font-style: normal; margin-left: 2px; }
.hero-stat span { font-size: 13px; color: rgba(255,255,255,0.6); }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.14); }

/* ======= Section common ======= */
.section-head {
  text-align: center;
  margin-bottom: 52px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.section-title { font-size: 36px; font-weight: 800; color: var(--dark); line-height: 1.3; margin-bottom: 12px; }
.section-desc { color: var(--text-light); font-size: 15px; line-height: 1.7; }
.text-left-head { text-align: left; margin-left: 0; }

/* ======= Core info split ======= */
.core-section { background: var(--bg-white); }
.core-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 70px;
  align-items: center;
}
.core-visual {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  min-height: 420px;
  background: url('/assets/images/coverpic/cover-1.png') center center / cover no-repeat;
}
.core-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,24,41,0.05), rgba(13,24,41,0.28));
}
.core-visual-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 3;
  background: rgba(255,255,255,0.94);
  border-radius: 14px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 14px;
}
.core-visual-badge i { color: var(--primary); font-size: 24px; }
.core-visual-badge div { display: flex; flex-direction: column; }
.core-visual-badge strong { font-size: 16px; color: var(--dark); }
.core-visual-badge span { font-size: 12px; color: var(--text-muted); }

.core-feature-list { display: flex; flex-direction: column; gap: 24px; }
.core-feature {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.core-feature:hover {
  background: var(--bg-white);
  border-color: rgba(26,92,255,0.3);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
.core-feature-icon {
  width: 48px; height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  flex-shrink: 0;
}
.core-feature strong { font-size: 16px; color: var(--dark); display: block; margin-bottom: 4px; }
.core-feature p { font-size: 14px; color: var(--text-light); line-height: 1.65; }

/* ======= Category cards ======= */
.category-section { background: var(--bg); }
.cat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cat-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26,92,255,0.25);
}
.cat-card-img {
  height: 190px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.cat-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(13,24,41,0.35));
}
.cat-card-icon {
  position: absolute;
  bottom: 16px;
  left: 20px;
  width: 42px; height: 42px;
  background: rgba(255,255,255,0.92);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 17px;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}
.cat-card-body { padding: 26px 24px 28px; }
.cat-card-body h3 { font-size: 19px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.cat-card-body p { font-size: 14px; color: var(--text-light); margin-bottom: 18px; line-height: 1.7; }
.cat-card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-light);
}
.cat-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
}
.cat-card-link:hover { gap: 10px; }

/* ======= Data section ======= */
.data-section {
  background: linear-gradient(135deg, #0d1829, #16263f), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
  position: relative;
}
.data-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(13,24,41,0.82);
}
.data-section .container { position: relative; z-index: 2; }
.data-section .section-title, .data-section .section-desc { color: #fff; }
.data-section .section-desc { color: rgba(255,255,255,0.72); }
.data-section .section-tag { background: rgba(255,255,255,0.14); color: #fff; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.data-card {
  text-align: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  padding: 32px 18px;
  transition: var(--transition);
}
.data-card:hover { background: rgba(255,255,255,0.12); transform: translateY(-4px); border-color: rgba(255,255,255,0.28); }
.data-card i { font-size: 28px; color: #79a7ff; margin-bottom: 14px; }
.data-num { font-size: 38px; font-weight: 800; line-height: 1.2; }
.data-num span { font-size: 18px; margin-left: 2px; color: #9db8ff; }
.data-label { font-size: 14px; color: rgba(255,255,255,0.66); margin-top: 6px; }

/* ======= Flow steps ======= */
.flow-section { background: var(--bg-white); }
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; counter-reset: flow; }
.flow-step {
  position: relative;
  padding: 32px 24px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
  counter-increment: flow;
}
.flow-step:hover { background: var(--bg-white); box-shadow: var(--shadow); transform: translateY(-4px); }
.flow-step::before {
  content: "0" counter(flow);
  position: absolute;
  top: 18px;
  right: 20px;
  font-size: 40px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
}
.flow-step-icon {
  width: 50px; height: 50px;
  background: var(--primary);
  color: #fff;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
  box-shadow: 0 6px 18px rgba(26,92,255,0.3);
}
.flow-step h3 { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.flow-step p { font-size: 14px; color: var(--text-light); line-height: 1.65; }

/* ======= News list section ======= */
.news-section { background: var(--bg); }
.news-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
  display: flex;
  gap: 18px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
}
.news-item:hover { box-shadow: var(--shadow); border-color: rgba(26,92,255,0.2); transform: translateY(-2px); }
.news-item:last-child { border-bottom: 1px solid var(--border); margin-bottom: 0; }
.news-date {
  min-width: 72px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 15px;
  font-weight: 800;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  text-align: center;
  line-height: 1.2;
  align-self: flex-start;
}
.news-date small { display: block; font-size: 11px; font-weight: 500; opacity: 0.8; }
.news-info { flex: 1; min-width: 0; }
.news-cat {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 6px;
  font-weight: 600;
}
.news-info h3 { font-size: 16px; font-weight: 600; color: var(--dark); display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.news-info h3 a:hover { color: var(--primary); }
.news-info p { font-size: 13.5px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-sidebar { position: sticky; top: 100px; }
.sidebar-card {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  color: #fff;
  margin-bottom: 24px;
}
.sidebar-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.sidebar-card p { font-size: 13.5px; color: rgba(255,255,255,0.68); margin-bottom: 18px; }
.sidebar-card .btn-primary { width: 100%; justify-content: center; }
.sidebar-phone {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid var(--border);
  text-align: center;
}
.sidebar-phone i { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
.sidebar-phone strong { font-size: 20px; color: var(--dark); display: block; margin-bottom: 4px; }
.sidebar-phone span { font-size: 13px; color: var(--text-muted); }

/* ======= Guide dual ======= */
.guide-section { background: var(--bg-white); }
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.guide-card {
  border-radius: var(--radius-lg);
  padding: 28px 28px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.guide-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: rgba(26,92,255,0.22); }
.guide-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.guide-card-head i {
  width: 44px; height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.guide-card-head h3 { font-size: 19px; font-weight: 700; color: var(--dark); }
.guide-card ul li {
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--text-light);
}
.guide-card ul li::before { content: "•"; color: var(--primary); font-weight: bold; font-size: 18px; }

/* ======= Image banner strip ======= */
.banner-strip {
  background: linear-gradient(120deg, #eef3ff, #fff);
  border-radius: var(--radius-lg);
  margin: 0 24px;
  max-width: 1152px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
  border: 1px solid var(--border);
}
.banner-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 260px;
}
.banner-strip-content { padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.banner-strip-content h3 { font-size: 28px; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.banner-strip-content p { font-size: 15px; color: var(--text-light); margin-bottom: 20px; }
.banner-strip-img { background: url('/assets/images/coverpic/cover-5.png') center center / cover no-repeat; min-height: 260px; position: relative; }
.banner-strip-img::after { content:''; position: absolute; inset: 0; background: rgba(26,92,255,0.08); }

/* ======= FAQ ======= */
.faq-section { background: var(--bg); }
.faq-wrap { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(26,92,255,0.3); }
.faq-item.active { box-shadow: var(--shadow-sm); border-color: var(--primary); }
.faq-q {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15.5px;
  color: var(--dark);
  user-select: none;
}
.faq-q i {
  color: var(--primary);
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: 50%;
  font-size: 13px;
  font-style: normal;
  transition: var(--transition);
}
.faq-item.active .faq-q i { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-a > div { padding: 0 24px 22px; font-size: 14px; color: var(--text-light); line-height: 1.75; }

/* ======= CTA ======= */
.cta-section {
  background: var(--dark);
  padding: 84px 0;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #79a7ff, var(--accent));
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { font-size: 15px; color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto 30px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.ctx-btn-solid {
  background: var(--accent);
  color: #fff;
  padding: 14px 34px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.ctx-btn-solid:hover { background: #ff7e58; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,106,61,0.4); }
.ctx-btn-ghost {
  background: rgba(255,255,255,0.1);
  color: #fff;
  padding: 14px 34px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid rgba(255,255,255,0.3);
  transition: var(--transition);
}
.ctx-btn-ghost:hover { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.6); }

/* ======= Footer ======= */
.site-footer { background: #0b1422; color: rgba(255,255,255,0.72); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-brand .logo-name { color: #fff; display: block; margin-bottom: 4px; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; margin-top: 12px; color: rgba(255,255,255,0.55); }
.footer-brand .logo-icon { margin-bottom: 8px; }
.footer-col h4 { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 16px; }
.footer-col a { display: block; padding: 5px 0; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-col a:hover { color: #fff; padding-left: 4px; color: #79a7ff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ======= Responsive ======= */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .nav-right .trend-tag, .nav-right .nav-cta { display: none; }
  .hamburger { display: flex; }
  .core-grid { gap: 40px; }
  .cat-cards { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 768px) {
  .section-pad { padding: 60px 0; }
  .hero { min-height: 560px; }
  .hero h1 { font-size: 36px; }
  .hero-desc { font-size: 15px; }
  .core-grid { grid-template-columns: 1fr; }
  .core-visual { min-height: 300px; }
  .cat-cards { grid-template-columns: 1fr; gap: 18px; }
  .news-layout { grid-template-columns: 1fr; }
  .news-sidebar { position: static; margin-top: 24px; }
  .banner-strip-grid { grid-template-columns: 1fr; }
  .banner-strip-content { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .flow-steps { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: 2; gap: 14px; }
  .stat-divider { display: none; }
  .hero-stats { gap: 20px; row-gap: 16px; }
  .hero-stats { justify-content: center; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero { text-align: center; }
  .hero .container { display: flex; flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero { min-height: 520px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 14px; line-height: 1.7; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; padding: 13px 18px; font-size: 14px; }
  .hero-actions { width: 100%; gap: 10px; }
  .section-title { font-size: 26px; }
  .core-visual-badge { padding: 13px 15px; left: 14px; bottom: 14px; }
  .core-feature { padding: 14px; }
  .data-card { padding: 22px 12px; }
  .data-num { font-size: 28px; }
  .news-item { padding: 14px; flex-direction: column; }
  .news-date { align-self: auto; display: inline-block; width: fit-content; }
  .banner-strip { margin: 0 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .faq-q { font-size: 14px; padding: 16px 18px; }
  .guide-card { padding: 20px 18px; }
  .logo-name { font-size: 18px; }
  .nav-right .icon-wrap { gap: 6px; }
  .section-tag { font-size: 12px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #1e3a5f;
  --primary-dark: #142a47;
  --primary-light: #2e5380;
  --accent: #c9a35b;
  --accent-hover: #b58d45;
  --bg: #f4f6fa;
  --bg-white: #ffffff;
  --bg-dark: #142a47;
  --text: #1c2b3a;
  --text-muted: #5c6b7e;
  --text-light: #8b9bb0;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 4px 18px rgba(20, 42, 71, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 42, 71, 0.14);
  --header-h: 72px;
  --transition: all .3s ease;
  --container: 1200px;
}

/* ===== 基础 reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4, h5 {
  line-height: 1.3;
  color: var(--text);
}

/* ===== 通用section ===== */
.section { padding: 80px 0; }
.section.bg-light { background: var(--bg-white); }
.section.bg-gray { background: var(--bg); }
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  background: rgba(201, 163, 91, 0.12);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-head h2 { font-size: 34px; font-weight: 700; letter-spacing: -0.5px; }
.section-head p { color: var(--text-muted); font-size: 16px; margin-top: 12px; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(20, 42, 71, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
}
.logo-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}
.logo-name span { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.main-nav a {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 100px;
  transition: var(--transition);
}
.main-nav a:hover { color: var(--primary); background: rgba(30, 58, 95, 0.05); }
.main-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 12px rgba(30, 58, 95, 0.25);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-search {
  position: relative;
  display: flex;
  align-items: center;
}
.header-search input {
  width: 180px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0 38px 0 16px;
  font-size: 14px;
  background: var(--bg);
  transition: var(--transition);
}
.header-search input:focus {
  width: 220px;
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(201, 163, 91, 0.15);
}
.header-search i {
  position: absolute;
  right: 14px;
  color: var(--text-light);
  font-size: 14px;
  pointer-events: none;
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  font-size: 18px;
}

/* ===== 页面 Hero ===== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0 90px;
  color: #fff;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(20, 42, 71, 0.92) 0%, rgba(20, 42, 71, 0.72) 45%, rgba(20, 42, 71, 0.35) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 18px;
}
.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.page-hero h1 i { color: var(--accent); font-style: normal; }
.page-hero .lead {
  font-size: 17px;
  max-width: 640px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 14px 24px;
  min-width: 110px;
  backdrop-filter: blur(6px);
}
.hero-stat strong { font-size: 22px; font-weight: 700; color: #fff; }
.hero-stat span { font-size: 12px; color: rgba(255, 255, 255, 0.7); margin-top: 2px; }
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
}
.crumb a { color: rgba(255, 255, 255, 0.85); }
.crumb a:hover { color: var(--accent); }
.crumb i { font-size: 10px; color: rgba(255, 255, 255, 0.4); }

/* ===== 核心说明 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.intro-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.intro-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary-light));
  opacity: 0;
  transition: var(--transition);
}
.intro-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.intro-card:hover::before { opacity: 1; }
.intro-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: rgba(30, 58, 95, 0.08);
  color: var(--primary);
  margin-bottom: 20px;
}
.intro-card h3 { font-size: 19px; margin-bottom: 12px; }
.intro-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.75; }

/* ===== 指南分类卡片 ===== */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.guide-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.guide-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}
.guide-card-media {
  position: relative;
  height: 170px;
  overflow: hidden;
  background: var(--bg);
}
.guide-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.guide-card:hover .guide-card-media img { transform: scale(1.06); }
.guide-card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(20, 42, 71, 0.4) 100%);
}
.guide-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  z-index: 2;
  backdrop-filter: blur(4px);
}
.guide-card-body { padding: 24px; }
.guide-card-body h3 { font-size: 17px; margin-bottom: 10px; font-weight: 700; }
.guide-card-body p { color: var(--text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
.guide-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.guide-card-link i { font-size: 12px; transition: transform 0.3s ease; }
.guide-card-link:hover { color: var(--accent-hover); }
.guide-card-link:hover i { transform: translateX(4px); }

/* ===== 学习流程 ===== */
.process-section { background: var(--bg-dark); position: relative; overflow: hidden; }
.process-section .section-head h2 { color: #fff; }
.process-section .section-head p { color: rgba(255, 255, 255, 0.6); }
.process-section .section-tag { background: rgba(201, 163, 91, 0.2); color: var(--accent); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}
.process-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}
.process-step:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  transform: translateY(-4px);
}
.process-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #e0bb7a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0 auto 20px;
}
.process-step h3 { color: #fff; font-size: 17px; margin-bottom: 12px; }
.process-step p { color: rgba(255, 255, 255, 0.6); font-size: 14px; line-height: 1.7; }
.process-step i.step-icon {
  display: block;
  font-size: 28px;
  color: rgba(255, 255, 255, 0.3);
  margin: 16px auto 0;
}

/* ===== 热门指南列表 ===== */
.content-list { max-width: 860px; margin: 0 auto; }
.content-item {
  display: flex;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 20px;
  transition: var(--transition);
  align-items: flex-start;
}
.content-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(6px);
  border-color: rgba(201, 163, 91, 0.6);
}
.content-thumb {
  flex-shrink: 0;
  width: 120px;
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
}
.content-thumb img { width: 100%; height: 100%; object-fit: cover; }
.content-info { flex: 1; }
.content-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 8px;
}
.content-meta .cate {
  display: inline-block;
  background: rgba(30, 58, 95, 0.08);
  color: var(--primary);
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 100px;
  font-size: 12px;
}
.content-info h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.content-info h3 a:hover { color: var(--accent-hover); }
.content-info p { color: var(--text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 8px; }
.content-meta-bottom { display: flex; gap: 14px; font-size: 13px; color: var(--text-light); }
.content-meta-bottom i { font-size: 12px; margin-right: 4px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(201, 163, 91, 0.5); }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}
.faq-q i { font-size: 14px; color: var(--text-light); transition: transform 0.3s ease; }
.faq-q:hover { color: var(--primary); }
.faq-item.active .faq-q i { transform: rotate(45deg); color: var(--accent-hover); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  background: rgba(244, 246, 250, 0.5);
}
.faq-a p { padding: 0 28px 24px; color: var(--text-muted); font-size: 15px; line-height: 1.8; margin: 0; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary-light));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201, 163, 91, 0.25) 0%, transparent 70%);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -80%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { color: #fff; font-size: 32px; font-weight: 700; margin-bottom: 14px; }
.cta-section p { color: rgba(255, 255, 255, 0.75); font-size: 16px; max-width: 520px; margin: 0 auto 30px; }
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary { background: var(--accent); color: var(--primary-dark); box-shadow: 0 4px 14px rgba(201, 163, 91, 0.3); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201, 163, 91, 0.4); }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #101f33;
  color: rgba(255, 255, 255, 0.75);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: var(--primary-dark);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  margin-bottom: 14px;
}
.footer-brand .logo-name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  display: block;
}
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); max-width: 280px; margin: 0; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 5px; }
.footer-col p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); margin: 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .intro-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .header-search { display: none; }
}

@media screen and (max-width: 768px) {
  .section { padding: 60px 0; }
  .page-hero { padding: 70px 0; }
  .page-hero h1 { font-size: 32px; }
  .hero-stats { gap: 14px; }
  .hero-stat { min-width: 90px; padding: 12px 18px; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 6px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    display: none;
    border-top: 1px solid var(--border);
  }
  .main-nav.open { display: flex; }
  .main-nav a { text-align: left; padding: 12px 16px; border-radius: var(--radius-sm); }
  .mobile-toggle { display: flex; }
  .header-right { gap: 8px; }
  .guide-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .intro-grid { grid-template-columns: 1fr; }
  .content-item { flex-direction: column; padding: 20px; }
  .content-thumb { width: 100%; height: 160px; }
  .cta-section h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-name { font-size: 17px; }
  .logo-icon { width: 34px; height: 34px; font-size: 15px; }
  .page-hero h1 { font-size: 26px; }
  .page-hero .lead { font-size: 15px; }
  .hero-stat strong { font-size: 18px; }
  .section-head h2 { font-size: 25px; }
  .section-tag { font-size: 12px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a p { padding: 0 20px 20px; font-size: 14px; }
  .content-meta { flex-wrap: wrap; gap: 8px; }
  .btn { padding: 12px 24px; font-size: 14px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .header-search { display: none; }
}

/* roulang page: article */
:root {
    --primary: #0d1f34;
    --primary-2: #132a44;
    --accent: #c4a265;
    --accent-hover: #d6b87e;
    --accent-soft: rgba(196, 162, 101, 0.12);
    --bg: #f4f6f9;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --text: #16283b;
    --text-weak: #5f6c7f;
    --text-light: #8b98a9;
    --border: #e3e8ef;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 10px rgba(13, 31, 52, 0.05);
    --shadow-md: 0 8px 28px rgba(13, 31, 52, 0.10);
    --shadow-lg: 0 18px 48px rgba(13, 31, 52, 0.16);
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--primary);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 2px 16px rgba(13,31,52,0.18);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 700;
    font-size: 20px;
    white-space: nowrap;
}
.logo-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent-hover), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--primary);
    font-size: 18px;
    flex-shrink: 0;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
    padding: 8px 15px;
    border-radius: 8px;
    color: rgba(255,255,255,0.7);
    font-size: 14.5px;
    font-weight: 500;
    transition: var(--transition);
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.main-nav a.active {
    color: #fff;
    background: rgba(196,162,101,0.18);
    box-shadow: inset 0 0 0 1px rgba(196,162,101,0.3);
}
.header-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 5px 5px 5px 14px;
    width: 180px;
    transition: var(--transition);
}
.header-search:focus-within { background: rgba(255,255,255,0.14); box-shadow: 0 0 0 2px rgba(196,162,101,0.35); }
.header-search input {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-size: 13px;
    width: 100%;
}
.header-search input::placeholder { color: rgba(255,255,255,0.45); }
.header-search button {
    background: var(--accent);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.header-search button:hover { background: var(--accent-hover); }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; padding: 6px; }

/* ===== Article Hero ===== */
.article-hero {
    background: var(--primary);
    color: #fff;
    padding: 70px 0 54px;
    position: relative;
    overflow: hidden;
}
.article-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: 0.25;
}
.article-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,31,52,0.94) 0%, rgba(13,31,52,0.72) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 22px;
    align-items: center;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,0.35); }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(196,162,101,0.16);
    border: 1px solid rgba(196,162,101,0.36);
    color: var(--accent-hover);
    font-size: 12.5px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 30px;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}
.article-hero h1 {
    font-size: clamp(26px, 4vw, 34px);
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 20px;
    max-width: 820px;
    letter-spacing: 0.2px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 13.5px;
    color: rgba(255,255,255,0.72);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--accent); }

/* ===== Article Body ===== */
.article-section { padding: 56px 0; }
.article-main-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 46px 52px;
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid rgba(227,232,239,0.6);
}
.article-body { font-size: 16px; line-height: 2; color: #2c3e50; }
.article-body h2 {
    font-size: 24px;
    line-height: 1.5;
    margin: 38px 0 16px;
    color: var(--primary);
    font-weight: 700;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    border-radius: 0 4px 4px 0;
}
.article-body h3 { font-size: 20px; margin: 30px 0 12px; color: var(--primary); font-weight: 600; }
.article-body p { margin-bottom: 18px; }
.article-body a { color: var(--accent); font-weight: 500; border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--accent); }
.article-body img { border-radius: var(--radius); margin: 26px 0; box-shadow: var(--shadow-sm); }
.article-body ul, .article-body ol { margin: 16px 0 20px 22px; }
.article-body ul li, .article-body ol li { margin-bottom: 8px; position: relative; }
.article-body ul li::before { content: ''; position: absolute; left: -18px; top: 12px; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    padding: 14px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 24px 0;
    color: var(--text-weak);
}
.article-body code { background: var(--surface-2); border: 1px solid var(--border); padding: 2px 8px; border-radius: 6px; font-size: 14px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body th { background: var(--surface-2); font-weight: 600; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 26px;
    margin-top: 34px;
    border-top: 1px solid var(--border);
    align-items: center;
}
.tag-label { font-size: 14px; color: var(--text-weak); font-weight: 500; margin-right: 4px; }
.tag {
    font-size: 13px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 4px 14px;
    border-radius: 30px;
    color: var(--text-weak);
    transition: var(--transition);
}
.tag:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* ===== Not Found ===== */
.not-found-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    max-width: 640px;
    margin: 0 auto;
    padding: 70px 40px;
    text-align: center;
}
.not-found-card i { font-size: 48px; color: var(--accent); margin-bottom: 20px; }
.not-found-card h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
.not-found-card p { color: var(--text-weak); font-size: 15px; margin-bottom: 28px; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 14.5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    line-height: 1.4;
}
.btn-accent { background: var(--accent); color: var(--primary); }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(196,162,101,0.35); }
.btn-outline { border: 1.5px solid rgba(255,255,255,0.5); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

/* ===== Section Head ===== */
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 32px; flex-wrap: wrap; }
.section-head h2 { font-size: 28px; font-weight: 700; color: var(--primary); letter-spacing: 0.2px; }
.section-head h2 span { color: var(--accent); }
.section-head .sub-title { color: var(--text-weak); font-size: 15px; margin-top: 4px; }
.section-link {
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.section-link:hover { color: var(--accent-hover); gap: 10px; }

/* ===== Related ===== */
.related-section { background: var(--surface-2); padding: 64px 0; border-top: 1px solid var(--border); }
.related-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    display: block;
    height: 100%;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(196,162,101,0.4); }
.related-card .card-img { aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-2); }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .card-img img { transform: scale(1.06); }
.related-card .card-body { padding: 20px 22px 24px; }
.related-card .card-cat {
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    display: inline-block;
    background: var(--accent-soft);
    padding: 3px 12px;
    border-radius: 30px;
}
.related-card h3 {
    font-size: 16.5px;
    font-weight: 600;
    line-height: 1.55;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text);
    transition: var(--transition);
}
.related-card:hover h3 { color: var(--accent); }
.related-card .card-date { font-size: 12.5px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.empty-text { text-align: center; color: var(--text-light); padding: 30px 0; font-size: 15px; }

/* ===== Category ===== */
.category-section { padding: 64px 0; }
.category-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 28px;
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.category-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(196,162,101,0.4); }
.category-card:hover::before { transform: scaleX(1); }
.category-card .cat-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 20px;
    margin-bottom: 16px;
    transition: var(--transition);
}
.category-card:hover .cat-icon { background: var(--accent); color: #fff; transform: rotate(-6deg) scale(1.05); }
.category-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--primary); }
.category-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 18px; line-height: 1.75; }
.category-card .cat-link { font-size: 14px; color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.category-card .cat-link:hover { gap: 10px; color: var(--accent-hover); }

/* ===== FAQ ===== */
.faq-section { background: var(--surface-2); padding: 64px 0; border-top: 1px solid var(--border); }
.faq-wrap { max-width: 840px; margin: 0 auto; }
.accordion { background: transparent; border: none; margin: 0; }
.accordion .accordion-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.accordion .accordion-item:hover { border-color: rgba(196,162,101,0.4); }
.accordion .accordion-item.is-active { border-color: rgba(196,162,101,0.5); box-shadow: var(--shadow-sm); }
.accordion .accordion-title {
    background: var(--surface);
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    padding: 20px 24px;
    border: none;
    line-height: 1.5;
    position: relative;
    transition: var(--transition);
}
.accordion .accordion-title:hover, .accordion .accordion-title:focus { background: var(--surface-2); color: var(--accent); }
.accordion .accordion-title::after { content: '+'; font-size: 24px; font-weight: 400; color: var(--accent); border: none; transform: none; right: 24px; }
.accordion .accordion-item.is-active .accordion-title::after { content: '−'; color: var(--accent); }
.accordion .accordion-content {
    background: var(--surface);
    border: none;
    color: var(--text-weak);
    font-size: 15px;
    padding: 0 24px 22px;
    line-height: 1.85;
}
.accordion .accordion-content p { margin-bottom: 0; }
.accordion .accordion-content a { color: var(--accent); }

/* ===== CTA ===== */
.cta-section {
    padding: 70px 0;
    background: var(--primary);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: 0.16;
}
.cta-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(13,31,52,0.96), rgba(19,42,68,0.85));
}
.cta-inner { position: relative; z-index: 2; text-align: center; color: #fff; }
.cta-inner h2 { font-size: clamp(26px, 4vw, 34px); font-weight: 700; margin-bottom: 14px; }
.cta-inner p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 30px; font-size: 16px; line-height: 1.8; }
.btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: #0a1a2c; color: rgba(255,255,255,0.7); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.footer-brand { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 0; }
.footer-brand .logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--accent-hover), var(--accent)); display: flex; align-items: center; justify-content: center; border-radius: 10px; color: var(--primary); font-size: 18px; flex-shrink: 0; margin-right: 10px; }
.footer-brand .logo-name { color: #fff; font-size: 20px; font-weight: 700; }
.footer-brand p { font-size: 13.5px; color: rgba(255,255,255,0.5); margin-top: 14px; line-height: 1.85; flex-basis: 100%; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; font-weight: 600; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--accent); border-radius: 2px; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 13.5px; margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); transform: translateX(3px); }
.footer-col p { font-size: 13.5px; line-height: 1.85; color: rgba(255,255,255,0.5); margin: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(255,255,255,0.38); flex-wrap: wrap; gap: 8px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .header-search { width: 150px; }
    .related-card h3 { font-size: 15.5px; }
    .article-main-card { padding: 38px 36px; }
}
@media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; padding: 14px 0; min-height: auto; position: relative; }
    .nav-toggle { display: block; order: 3; }
    .logo { order: 1; }
    .header-search { order: 2; flex: 1; max-width: 170px; }
    .main-nav {
        order: 4;
        flex-basis: 100%;
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 14px 0 4px;
        border-top: 1px solid rgba(255,255,255,0.08);
        margin-top: 10px;
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 12px 14px; border-radius: 8px; }
    .article-hero { padding: 44px 0 38px; }
    .article-hero h1 { font-size: 24px; }
    .article-meta { gap: 12px; }
    .article-section { padding: 40px 0; }
    .article-main-card { padding: 30px 24px; border-radius: 14px; }
    .related-section, .category-section, .faq-section { padding: 46px 0; }
    .category-card, .related-card { margin-bottom: 8px; }
    .section-head h2 { font-size: 23px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; padding-bottom: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; line-height: 1.7; }
    .btn-group { flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .header-search { display: none; }
    .header-inner { gap: 12px; }
    .article-main-card { padding: 26px 20px; }
    .article-body { font-size: 15px; }
    .article-body h2 { font-size: 20px; }
    .related-card .card-body { padding: 16px 16px 20px; }
    .cta-section { padding: 52px 0; }
    .footer-brand p { font-size: 13px; }
}

/* roulang page: category2 */
:root {
      --primary: #0f2b46;
      --primary-dark: #0a1f33;
      --primary-light: #1a3d5f;
      --accent: #c8a96a;
      --accent-dark: #b08e4a;
      --accent-light: #e5d5b4;
      --bg: #f5f7fa;
      --bg-white: #ffffff;
      --bg-light: #eef2f6;
      --text: #1a2433;
      --text-light: #6b7a8d;
      --text-muted: #8a98a8;
      --border: #e2e8f0;
      --radius: 12px;
      --radius-lg: 20px;
      --shadow: 0 4px 24px rgba(15, 43, 70, 0.08);
      --shadow-lg: 0 12px 40px rgba(15, 43, 70, 0.12);
      --transition: all 0.25s ease;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: var(--font-family);
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border: 0;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover,
    a:focus {
      color: var(--accent);
      text-decoration: none;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }

    ul,
    ol {
      list-style: none;
    }

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

    .section-pad {
      padding: 80px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(200, 169, 106, 0.14);
      border: 1px solid rgba(200, 169, 106, 0.35);
      color: var(--accent-dark);
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      margin-bottom: 14px;
    }

    .section-head h2 {
      font-size: 34px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }

    .section-head p {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.7;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      line-height: 1.4;
      border: 2px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      color: #fff;
      border-color: transparent;
      box-shadow: 0 4px 16px rgba(200, 169, 106, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(200, 169, 106, 0.4);
    }

    .btn-outline {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, 0.6);
    }

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

    .btn-outline-dark {
      background: transparent;
      color: var(--primary);
      border-color: var(--border);
    }

    .btn-outline-dark:hover {
      background: var(--bg-light);
      color: var(--accent-dark);
      border-color: var(--accent);
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 1px 12px rgba(15, 43, 70, 0.04);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

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

    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 16px;
      box-shadow: 0 4px 12px rgba(200, 169, 106, 0.35);
    }

    .logo-name {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.01em;
      white-space: nowrap;
    }

    .header-nav-wrap {
      border-top: 1px solid var(--border);
      background: var(--bg-white);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: nowrap;
      min-height: 52px;
    }

    .main-nav a {
      position: relative;
      padding: 10px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      border-radius: 8px;
      transition: var(--transition);
      white-space: nowrap;
    }

    .main-nav a:hover {
      color: var(--accent-dark);
      background: rgba(200, 169, 106, 0.08);
    }

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

    .main-nav a.active::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 4px;
      height: 3px;
      border-radius: 3px;
      background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    }

    .nav-search {
      display: flex;
      align-items: center;
      margin-left: auto;
      background: var(--bg-light);
      border: 1px solid transparent;
      border-radius: 8px;
      padding: 0 6px;
      height: 36px;
      transition: var(--transition);
    }

    .nav-search:focus-within {
      border-color: var(--accent);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.15);
    }

    .nav-search input {
      border: none;
      background: transparent;
      outline: none;
      padding: 6px 10px;
      font-size: 13px;
      width: 160px;
      color: var(--text);
    }

    .nav-search input::placeholder {
      color: var(--text-muted);
    }

    .nav-search button {
      border: none;
      background: transparent;
      color: var(--text-light);
      cursor: pointer;
      padding: 6px 10px;
      font-size: 14px;
      border-radius: 6px;
      transition: var(--transition);
    }

    .nav-search button:hover {
      color: var(--accent-dark);
    }

    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: transparent;
      cursor: pointer;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
    }

    .mobile-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--primary);
      transition: var(--transition);
    }

    .mobile-toggle.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    /* ===== Hero / Banner ===== */
    .page-banner {
      position: relative;
      padding: 90px 0;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }

    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(10, 31, 51, 0.92) 0%, rgba(15, 43, 70, 0.75) 50%, rgba(15, 43, 70, 0.6) 100%);
    }

    .banner-content {
      position: relative;
      z-index: 2;
      max-width: 760px;
      color: #fff;
    }

    .banner-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 30px;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.03em;
      margin-bottom: 20px;
      backdrop-filter: blur(6px);
    }

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

    .banner-content h1 {
      font-size: 42px;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 18px;
      color: #fff;
    }

    .banner-content h1 span {
      color: var(--accent);
    }

    .banner-content p {
      font-size: 17px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 30px;
      max-width: 640px;
    }

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

    /* ===== 分类标签 ===== */
    .cats-section {
      padding: 70px 0 30px;
    }

    .cat-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 10px;
    }

    .cat-tab {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 22px;
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: 10px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text);
      transition: var(--transition);
      box-shadow: 0 2px 8px rgba(15, 43, 70, 0.03);
    }

    .cat-tab i {
      color: var(--accent);
      font-size: 15px;
    }

    .cat-tab:hover {
      border-color: var(--accent);
      color: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(200, 169, 106, 0.15);
    }

    .cat-tab.active {
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      color: #fff;
      border-color: transparent;
      box-shadow: 0 6px 20px rgba(200, 169, 106, 0.3);
    }

    .cat-tab.active i {
      color: #fff;
    }

    /* ===== 技巧卡片 ===== */
    .tips-section {
      padding: 60px 0 80px;
    }

    .tip-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
      box-shadow: 0 2px 10px rgba(15, 43, 70, 0.04);
    }

    .tip-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(200, 169, 106, 0.4);
    }

    .tip-card-img {
      position: relative;
      height: 190px;
      overflow: hidden;
    }

    .tip-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .tip-card:hover .tip-card-img img {
      transform: scale(1.05);
    }

    .tip-card-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 55%, rgba(10, 31, 51, 0.35) 100%);
    }

    .tip-card-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      z-index: 2;
      padding: 4px 12px;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(4px);
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .tip-card-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .tip-card-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.4;
      margin-bottom: 10px;
      transition: var(--transition);
    }

    .tip-card:hover .tip-card-body h3 {
      color: var(--accent-dark);
    }

    .tip-card-body p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }

    .tip-card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      color: var(--accent-dark);
      transition: var(--transition);
    }

    .tip-card-link i {
      transition: var(--transition);
    }

    .tip-card-link:hover {
      color: var(--primary);
    }

    .tip-card-link:hover i {
      transform: translateX(4px);
    }

    /* ===== 步骤流程 ===== */
    .steps-section {
      padding: 80px 0;
      background: var(--bg-white);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 20px;
    }

    .step-item {
      position: relative;
      padding: 32px 28px;
      background: var(--bg-light);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      transition: var(--transition);
    }

    .step-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(200, 169, 106, 0.4);
    }

    .step-num {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      box-shadow: 0 4px 14px rgba(15, 43, 70, 0.25);
    }

    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* ===== 数据统计 ===== */
    .stats-section {
      padding: 80px 0;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      position: relative;
      overflow: hidden;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: rgba(200, 169, 106, 0.08);
      top: -120px;
      right: -120px;
    }

    .stats-section::after {
      content: '';
      position: absolute;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(200, 169, 106, 0.05);
      bottom: -100px;
      left: -80px;
    }

    .stats-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .stat-item {
      padding: 28px 20px;
    }

    .stat-num {
      font-size: 44px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
      margin-bottom: 6px;
      letter-spacing: -0.02em;
    }

    .stat-label {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.7);
    }

    /* ===== 热门列表 ===== */
    .hot-section {
      padding: 80px 0;
    }

    .hot-list {
      max-width: 920px;
      margin: 0 auto;
    }

    .hot-item {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      padding: 24px 28px;
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      margin-bottom: 16px;
      transition: var(--transition);
      cursor: default;
    }

    .hot-item:hover {
      border-color: rgba(200, 169, 106, 0.4);
      box-shadow: var(--shadow);
      transform: translateX(6px);
    }

    .hot-rank {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      color: var(--text-light);
      flex-shrink: 0;
      transition: var(--transition);
    }

    .hot-item:nth-child(1) .hot-rank {
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      color: #fff;
    }

    .hot-item:nth-child(2) .hot-rank {
      background: linear-gradient(135deg, #d9b98c 0%, var(--accent) 100%);
      color: #fff;
    }

    .hot-item:nth-child(3) .hot-rank {
      background: linear-gradient(135deg, #e8d3b0 0%, var(--accent-dark) 100%);
      color: #fff;
    }

    .hot-item:hover .hot-rank {
      background: var(--primary);
      color: var(--accent);
    }

    .hot-content h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 5px;
    }

    .hot-content p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 80px 0;
      background: var(--bg-white);
      border-top: 1px solid var(--border);
    }

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

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

    .faq-item:hover {
      border-color: rgba(200, 169, 106, 0.4);
      box-shadow: var(--shadow);
    }

    .faq-q {
      padding: 22px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
    }

    .faq-q .faq-q-text {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .faq-q .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(200, 169, 106, 0.12);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-dark);
      font-size: 13px;
      flex-shrink: 0;
    }

    .faq-q .faq-toggle {
      font-size: 14px;
      color: var(--text-muted);
      transition: var(--transition);
      flex-shrink: 0;
    }

    .faq-item.active .faq-toggle {
      transform: rotate(180deg);
      color: var(--accent-dark);
    }

    .faq-a {
      display: none;
      padding: 0 28px 24px 68px;
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.8;
    }

    .faq-item.active .faq-a {
      display: block;
      animation: fadeSlide 0.3s ease;
    }

    @keyframes fadeSlide {
      from {
        opacity: 0;
        transform: translateY(-6px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 70px 0;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.08);
      top: -200px;
      right: -100px;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 720px;
      margin: 0 auto;
      color: #fff;
    }

    .cta-inner h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 14px;
      color: #fff;
    }

    .cta-inner p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 28px;
      line-height: 1.7;
    }

    .cta-form {
      display: flex;
      gap: 10px;
      max-width: 480px;
      margin: 0 auto 14px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .cta-form input {
      flex: 1;
      min-width: 220px;
      padding: 13px 18px;
      border-radius: 8px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      font-size: 14px;
      outline: none;
      backdrop-filter: blur(4px);
      transition: var(--transition);
    }

    .cta-form input::placeholder {
      color: rgba(255, 255, 255, 0.6);
    }

    .cta-form input:focus {
      background: rgba(255, 255, 255, 0.16);
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.2);
    }

    .cta-form .btn {
      border: none;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      color: #fff;
      font-size: 14px;
      padding: 13px 24px;
      cursor: pointer;
      border-radius: 8px;
    }

    .cta-form .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(200, 169, 106, 0.4);
    }

    .cta-note {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      margin-top: 4px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.8);
      padding: 60px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .logo-name {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.55);
      margin-top: 14px;
    }

    .footer-brand .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 16px;
      box-shadow: 0 4px 12px rgba(200, 169, 106, 0.3);
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-col a {
      display: block;
      padding: 6px 0;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      transition: var(--transition);
    }

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

    .footer-col p {
      font-size: 13.5px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      padding: 24px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ===== 响应式 ===== */
    @media screen and (max-width: 1024px) {
      .steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
    }

    @media screen and (max-width: 768px) {
      .section-pad {
        padding: 60px 0;
      }

      .section-head h2 {
        font-size: 28px;
      }

      .header-nav-wrap {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        border-top: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        border-bottom: none;
      }

      .header-nav-wrap.open {
        max-height: 380px;
        overflow-y: auto;
      }

      .main-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 16px 20px;
        min-height: auto;
      }

      .main-nav a {
        padding: 14px 12px;
        border-radius: 8px;
        border-bottom: 1px solid rgba(226, 232, 240, 0.5);
      }

      .main-nav a.active::after {
        display: none;
      }

      .main-nav a.active {
        background: rgba(200, 169, 106, 0.1);
      }

      .nav-search {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
      }

      .nav-search input {
        width: 100%;
        flex: 1;
      }

      .mobile-toggle {
        display: flex;
      }

      .page-banner {
        padding: 70px 0;
      }

      .banner-content h1 {
        font-size: 32px;
      }

      .banner-content p {
        font-size: 15px;
      }

      .tips-section {
        padding: 50px 0 60px;
      }
    }

    @media screen and (max-width: 600px) {
      .container {
        padding: 0 16px;
      }

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

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }

      .stat-num {
        font-size: 34px;
      }

      .hot-item {
        flex-direction: row;
        padding: 18px 16px;
      }

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

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

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

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

      .cat-tabs {
        gap: 8px;
      }

      .cat-tab {
        padding: 10px 16px;
        font-size: 13px;
      }

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

      .cta-form input {
        width: 100%;
      }

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

    @media screen and (min-width: 769px) {
      .header-nav-wrap {
        display: block !important;
        max-height: none !important;
      }
    }

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0e2247;
            --primary-dark: #081830;
            --primary-light: #1a3563;
            --accent: #c9a15a;
            --accent-dark: #b08d47;
            --accent-light: #f3e8d2;
            --bg-light: #f4f7fb;
            --bg-white: #ffffff;
            --text-main: #1c2733;
            --text-muted: #63748b;
            --text-light: #8b9bb2;
            --border-color: #e2e9f2;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 34, 71, 0.06);
            --shadow-md: 0 8px 24px rgba(14, 34, 71, 0.08);
            --shadow-lg: 0 18px 44px rgba(14, 34, 71, 0.13);
            --transition: all 0.3s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
        }

        /* ============ 容器 ============ */
        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ 吸顶导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(14, 34, 71, 0.06);
            box-shadow: 0 1px 10px rgba(14, 34, 71, 0.05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: var(--radius-sm);
            color: var(--accent);
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(14, 34, 71, 0.2);
        }

        .logo-name {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--primary);
            white-space: nowrap;
        }

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

        .main-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .main-nav a:hover {
            color: var(--primary);
            background: rgba(14, 34, 71, 0.06);
        }

        .main-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(14, 34, 71, 0.22);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* ============ 通用按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(14, 34, 71, 0.2);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(14, 34, 71, 0.28);
        }

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

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

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 16px rgba(201, 161, 90, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(201, 161, 90, 0.5);
            outline-offset: 2px;
        }

        /* ============ 页面 Banner ============ */
        .page-banner {
            position: relative;
            padding: 100px 0 110px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(8, 24, 48, 0.88), rgba(14, 34, 71, 0.72), rgba(14, 34, 71, 0.55));
            pointer-events: none;
        }

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

        .banner-content {
            max-width: 720px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(6px);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13.5px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 22px;
            color: var(--accent-light);
        }

        .banner-content h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .banner-content p {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 30px;
            max-width: 580px;
        }

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

        /* ============ 章节通用 ============ */
        .section {
            padding: 86px 0;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--accent);
            background: var(--accent-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ============ 资讯卡片 ============ */
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 34, 71, 0.12);
        }

        .news-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .news-card:hover .news-cover img {
            transform: scale(1.05);
        }

        .news-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(14, 34, 71, 0.85);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .news-info {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-excerpt {
            font-size: 14.5px;
            line-height: 1.8;
            color: var(--text-muted);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .news-link i {
            transition: transform 0.3s ease;
        }

        .news-link:hover {
            color: var(--accent);
        }

        .news-link:hover i {
            transform: translateX(4px);
        }

        /* ============ 更新日志时间线 ============ */
        .timeline-section {
            background: var(--bg-white);
            position: relative;
            overflow: hidden;
        }

        .timeline {
            position: relative;
            max-width: 880px;
            margin: 0 auto;
            padding-left: 36px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent), var(--primary));
            border-radius: 2px;
            opacity: 0.6;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 40px 0;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .tl-dot {
            position: absolute;
            left: -32px;
            top: 6px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            border: 4px solid #fff;
            box-shadow: 0 0 0 2px var(--accent), var(--shadow-sm);
            z-index: 1;
        }

        .timeline-item:nth-child(2) .tl-dot {
            background: var(--primary);
            box-shadow: 0 0 0 2px var(--primary), var(--shadow-sm);
        }

        .tl-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px 26px;
            transition: var(--transition);
        }

        .tl-card:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 34, 71, 0.1);
        }

        .tl-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .tl-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .tl-card p {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ 热门话题 ============ */
        .tags-section {
            background: var(--bg-light);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .tag-item i {
            color: var(--accent);
            font-size: 14px;
        }

        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 24px rgba(14, 34, 71, 0.18);
        }

        .tag-item:hover i {
            color: var(--accent);
        }

        /* ============ 订阅 CTA ============ */
        .subscribe-section {
            padding: 96px 0;
            position: relative;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .subscribe-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(8, 24, 48, 0.92), rgba(14, 34, 71, 0.82));
            pointer-events: none;
        }

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

        .subscribe-box {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            color: #fff;
        }

        .subscribe-box h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .subscribe-box p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 16.5px;
            margin-bottom: 36px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .form-input {
            flex: 1;
            min-width: 240px;
            padding: 14px 22px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 15px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .form-input:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(201, 161, 90, 0.2);
        }

        .subscribe-note {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 18px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(14, 34, 71, 0.16);
            box-shadow: var(--shadow-sm);
        }

        .faq-item details {
            width: 100%;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            list-style: none;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item summary .fa-chevron-down {
            margin-left: auto;
            font-size: 14px;
            color: var(--text-light);
            transition: transform 0.3s ease;
        }

        .faq-item details[open] .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-item details[open] summary {
            background: rgba(14, 34, 71, 0.03);
        }

        .faq-answer {
            padding: 0 24px 22px 72px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            border-top: 1px dashed var(--border-color);
            margin-top: 2px;
            padding-top: 16px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 72px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary-light), var(--accent));
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            padding-bottom: 56px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .footer-brand .logo-icon {
            margin-bottom: 14px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-brand .logo-name {
            color: #fff;
            font-size: 22px;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14.5px;
            color: rgba(255, 255, 255, 0.55);
            padding: 6px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .footer-col p {
            font-size: 13.5px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .banner-content h1 {
                font-size: 34px;
            }

            .section {
                padding: 70px 0;
            }
        }

        @media (max-width: 768px) {
            .site-header .brand .logo-name {
                font-size: 18px;
            }

            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 8px;
                display: none;
                z-index: 999;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 14px 20px;
                border-radius: var(--radius-sm);
                justify-content: flex-start;
            }

            .main-nav a.active {
                background: var(--primary);
                color: #fff;
            }

            .menu-toggle {
                display: flex;
            }

            .page-banner {
                padding: 70px 0 80px;
            }

            .banner-content h1 {
                font-size: 28px;
            }

            .banner-content p {
                font-size: 15.5px;
            }

            .section {
                padding: 56px 0;
            }

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

            .timeline {
                padding-left: 30px;
            }

            .subscribe-section {
                padding: 70px 0;
            }

            .subscribe-box h2 {
                font-size: 27px;
            }
        }

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

            .header-inner {
                height: 60px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .logo-name {
                font-size: 16.5px !important;
            }

            .banner-content h1 {
                font-size: 24px;
            }

            .banner-actions .btn {
                padding: 11px 20px;
                font-size: 14px;
            }

            .news-info {
                padding: 18px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .form-input {
                min-width: 0;
                width: 100%;
            }

            .faq-item summary {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding-left: 60px;
                padding-right: 18px;
            }
        }