/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #2C6E9B;
  --primary-dark: #143D5C;
  --primary-light: #E8F1F7;
  --accent: #E08E2E;
  --accent-dark: #C97619;
  --bg: #F1F5F8;
  --card: #FFFFFF;
  --text: #1E2C38;
  --text-2: #556B7D;
  --text-3: #8AA0B3;
  --border: #DCE5EC;
  --success: #2F9E6E;
  --danger: #D64545;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 8px 30px rgba(28, 62, 92, 0.08);
  --shadow-hover: 0 14px 42px rgba(28, 62, 92, 0.15);
  --container: 1200px;
  --transition: all .25s ease;
}
/* ===== Reset / 基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: var(--transition);
  text-align: center;
  border: 2px solid transparent;
}
.btn:focus-visible {
  outline: 3px solid rgba(44, 110, 155, 0.4);
  outline-offset: 2px;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 15px rgba(44,110,155,0.25); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(44,110,155,0.35); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(44,110,155,0.3); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 15px rgba(224,142,46,0.3); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(224,142,46,0.4); }
.btn-accent:active { transform: translateY(0); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary-dark); }

/* ===== Header / 导航面板 ===== */
.site-header {
  position: sticky;
  top: 14px;
  z-index: 1000;
  max-width: 1240px;
  margin: 20px auto 0;
  padding: 0 20px;
  width: 100%;
}
.main-nav {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(220,229,236,0.6);
  padding: 12px 24px;
}
.nav-inner { display: flex; align-items: center; gap: 18px; }
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary-dark);
  padding: 6px 0;
  white-space: nowrap;
}
.nav-logo:hover { color: var(--primary); }
.logo-icon {
  width: 40px; height: 40px;
  background: var(--primary);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(44,110,155,0.3);
}
.nav-toggle { display: none; padding: 10px; font-size: 20px; color: var(--text); border-radius: 8px; margin-left: auto; }
.nav-toggle:hover { background: var(--primary-light); }
.nav-links { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--bg);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link i { font-size: 14px; color: var(--primary); }
.nav-link:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-1px); }
.nav-link.active { background: var(--primary-light); color: var(--primary-dark); box-shadow: inset 0 0 0 1.5px var(--primary); }
.nav-link:focus-visible { outline: 3px solid rgba(44,110,155,0.4); outline-offset: 2px; }
.nav-cta { margin-left: 6px; padding: 10px 22px; font-size: 14px; }

/* ===== Hero ===== */
.hero-section {
  position: relative;
  margin: 28px 20px 0;
  border-radius: 28px;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding: 72px 56px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255,255,255,0.97) 25%, rgba(255,255,255,0.82) 65%, rgba(255,255,255,0.55) 100%);
  border-radius: 28px;
}
.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 52px;
  align-items: center;
}
.hero-text { max-width: 620px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
  border: 1px solid rgba(44,110,155,0.2);
}
.hero-title {
  font-size: 44px;
  line-height: 1.18;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}
.hero-title span { color: var(--primary); }
.hero-desc {
  font-size: 17px;
  color: var(--text-2);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); }
.hero-meta-item i { color: var(--primary); font-size: 18px; }
.hero-image { position: relative; }
.hero-image img {
  width: 100%;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(28,62,92,0.18);
  border: 5px solid #fff;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.hero-image-badge {
  position: absolute;
  bottom: 22px;
  left: 22px;
  background: var(--primary-dark);
  color: #fff;
  padding: 10px 18px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(20,61,92,0.4);
}

/* ===== 信任导流条 ===== */
.trust-bar {
  margin: 28px 20px 0;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 28px 40px;
}
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.trust-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 16px;
  background: var(--bg);
  border: 1px solid transparent;
  transition: var(--transition);
}
.trust-item:hover { background: var(--primary-light); border-color: rgba(44,110,155,0.25); transform: translateY(-3px); box-shadow: var(--shadow); }
.trust-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 4px 12px rgba(28,62,92,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
}
.trust-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.trust-item p { font-size: 13px; color: var(--text-2); }

/* ===== 通用板块 ===== */
.section { padding: 80px 0 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; padding: 0 16px; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  border: 1px solid rgba(44,110,155,0.15);
}
.section-title { font-size: 32px; font-weight: 800; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-sub { font-size: 16px; color: var(--text-2); }

/* ===== 徽章 / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
}
.badge-accent { background: #FCEBD6; color: var(--accent-dark); }
.badge-success { background: #E4F6EC; color: var(--success); }

/* ===== 优惠阶梯 ===== */
.steps-wrap { background: var(--card); border-radius: 28px; padding: 56px 48px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.steps-grid { display: flex; align-items: flex-end; justify-content: center; gap: 24px; }
.step-card {
  flex: 1;
  max-width: 340px;
  background: var(--bg);
  border-radius: 24px;
  padding: 36px 30px;
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.step-card.recommended {
  background: var(--card);
  border: 2px solid var(--primary);
  box-shadow: 0 16px 44px rgba(44,110,155,0.16);
  padding: 44px 34px;
  max-width: 380px;
  flex: 1.1;
}
.step-recommend-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  padding: 6px 20px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(224,142,46,0.4);
  white-space: nowrap;
}
.step-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.step-card.recommended .step-icon { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(44,110,155,0.35); }
.step-name { font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.step-target { font-size: 14px; color: var(--text-2); margin-bottom: 18px; }
.step-features { list-style: none; margin-bottom: 24px; }
.step-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); padding: 6px 0; }
.step-features li i { color: var(--success); font-size: 14px; flex-shrink: 0; }
.step-btn { width: 100%; }

/* ===== 最新信息 / CMS列表 ===== */
.news-section { background: var(--card); border-radius: 28px; padding: 56px 48px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: var(--bg);
  border-radius: 20px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: rgba(44,110,155,0.3); }
.news-cover { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--primary-light); }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-cover img { transform: scale(1.05); }
.news-cover .badge { position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.92); box-shadow: 0 4px 12px rgba(28,62,92,0.1); }
.news-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-body h3 { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.news-body h3 a { color: var(--text); }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { font-size: 14px; color: var(--text-2); line-height: 1.7; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; font-size: 13px; color: var(--text-3); }
.news-meta .read-more { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 13px; color: var(--primary); }
.news-meta .read-more:hover { color: var(--accent-dark); }
.news-empty {
  grid-column: 1 / -1;
  background: var(--bg);
  border-radius: 20px;
  text-align: center;
  padding: 60px 24px;
  color: var(--text-3);
  font-size: 15px;
}
.news-empty i { font-size: 40px; margin-bottom: 14px; opacity: 0.5; display: block; }

/* ===== 套餐对比表 ===== */
.compare-section { background: var(--card); border-radius: 28px; padding: 56px 48px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.compare-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); border-radius: 20px; overflow: hidden; border: 1px solid var(--border); }
.compare-head, .compare-cell {
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  text-align: center;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}
.compare-head { font-weight: 800; font-size: 17px; color: var(--text); }
.compare-row { display: contents; }
.compare-cell { display: flex; align-items: center; justify-content: center; }
.compare-feature { justify-content: flex-start; text-align: left; font-weight: 600; color: var(--text-2); background: #FBFCFE; }
.compare-head.compare-feature { color: var(--text); font-size: 15px; }
.compare-recommend { background: var(--primary-light); border-left: 2px solid var(--primary); border-right: 2px solid var(--primary); }
.compare-recommend.compare-head { background: var(--primary); color: #fff; border: none; position: relative; }
.compare-recommend-tag {
  display: block;
  font-size: 12px;
  font-weight: 800;
  background: var(--accent);
  color: #fff;
  padding: 4px 14px;
  border-radius: 999px;
  margin-top: 6px;
}
.compare-cell i.fa-check { color: var(--success); font-size: 18px; }
.compare-cell i.fa-xmark { color: var(--border); font-size: 18px; }
.compare-price { font-size: 16px; font-weight: 800; color: var(--primary-dark); }
.compare-bottom { margin-top: 32px; display: flex; justify-content: center; }
.compare-bottom .btn { min-width: 160px; }

/* ===== 限时入口 ===== */
.countdown-section {
  background: var(--primary-dark);
  border-radius: 28px;
  padding: 56px 56px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(20,61,92,0.35);
}
.countdown-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  opacity: 0.1;
}
.countdown-inner { position: relative; display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.countdown-info { flex: 1; min-width: 260px; }
.countdown-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.countdown-title { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 10px; line-height: 1.3; }
.countdown-desc { color: rgba(255,255,255,0.8); font-size: 15px; }
.countdown-box { display: flex; gap: 16px; align-items: center; }
.count-col {
  min-width: 84px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 18px 12px;
  text-align: center;
  backdrop-filter: blur(6px);
}
.count-col span { font-size: 32px; font-weight: 800; color: #fff; display: block; line-height: 1.1; font-variant-numeric: tabular-nums; }
.count-col small { font-size: 13px; color: rgba(255,255,255,0.75); display: block; margin-top: 4px; }
.countdown-cta { margin-left: auto; }
.countdown-cta .btn { padding: 16px 34px; font-size: 16px; }

/* ===== 咨询表单 ===== */
.contact-section { background: var(--card); border-radius: 28px; padding: 56px 48px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.form-layout { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; }
.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  font-size: 15px;
  color: var(--text);
  transition: var(--transition);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(44,110,155,0.12);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-privacy { font-size: 13px; color: var(--text-3); margin-top: 14px; display: flex; align-items: center; gap: 8px; }
.contact-aside { background: var(--bg); border-radius: 20px; padding: 32px; border: 1px solid var(--border); }
.contact-aside h3 { font-size: 18px; font-weight: 800; margin-bottom: 20px; }
.contact-info { list-style: none; }
.contact-info li { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 16px; font-size: 14px; color: var(--text-2); }
.contact-info i { font-size: 18px; color: var(--primary); margin-top: 3px; width: 22px; text-align: center; }
.contact-aside-note { background: var(--primary-light); border-radius: 14px; padding: 16px 18px; margin-top: 22px; font-size: 13px; color: var(--primary-dark); border: 1px solid rgba(44,110,155,0.15); }
.form-message { display: none; margin-top: 20px; padding: 14px 20px; border-radius: 12px; font-size: 14px; font-weight: 600; }
.form-message.success { background: #E4F6EC; color: var(--success); display: block; }
.form-message.error { background: #FBE9E9; color: var(--danger); display: block; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion { background: transparent; border: none !important; }
.accordion-item { background: var(--card); border: 1px solid var(--border) !important; border-radius: 18px !important; margin-bottom: 16px; box-shadow: 0 4px 16px rgba(28,62,92,0.04); transition: var(--transition); overflow: hidden; }
.accordion-item:hover { box-shadow: var(--shadow); }
.accordion-item.is-active { box-shadow: var(--shadow); border-color: rgba(44,110,155,0.35) !important; }
.accordion-title {
  display: flex !important;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text) !important;
  padding: 22px 24px !important;
  position: relative;
  border: none !important;
  border-bottom: 1px solid transparent !important;
  line-height: 1.5;
}
.accordion-title::before { content: '\f059'; font-family: 'Font Awesome 6 Free'; font-weight: 400; color: var(--primary); font-size: 20px; flex-shrink: 0; }
.accordion-title::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--text-3);
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  transition: var(--transition);
  border: none !important;
}
.accordion-item.is-active > .accordion-title::after { transform: translateY(-50%) rotate(180deg); color: var(--primary); }
.accordion-content { display: none !important; }
.accordion-item.is-active > .accordion-content { display: block !important; }
.accordion-content { padding: 0 24px 22px 58px; font-size: 15px; color: var(--text-2); line-height: 1.8; }

/* ===== CTA 横条 ===== */
.cta-strip {
  background: var(--card);
  border-radius: 24px;
  padding: 44px 48px;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-top: 80px;
}
.cta-strip-text { flex: 1; min-width: 260px; }
.cta-strip-text h2 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.cta-strip-text p { color: var(--text-2); font-size: 15px; }

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  margin-top: 100px;
  border-radius: 32px 32px 0 0;
  padding: 64px 0 0;
}
.footer-inner { padding: 0 24px; max-width: var(--container); margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-logo { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-logo .logo-icon { background: var(--accent); box-shadow: 0 4px 14px rgba(224,142,46,0.4); }
.footer-about { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
.footer-col h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.7); font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
.footer-col ul li a:hover { color: #fff; }
.footer-col ul li a i { font-size: 12px; color: var(--accent); }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 14px; font-size: 14px; color: rgba(255,255,255,0.7); }
.footer-contact li i { color: var(--accent); margin-top: 5px; width: 18px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 48px; padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.55); }

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .hero-title { font-size: 36px; }
  .hero-section { padding: 52px 36px; }
  .steps-grid { flex-wrap: wrap; align-items: stretch; }
  .step-card { flex: 1 1 280px; max-width: none; }
  .step-card.recommended { max-width: none; }
  .compare-grid { grid-template-columns: 1fr repeat(3, 0.9fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .form-layout { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-links { display: none; position: absolute; top: calc(100% + 12px); left: 0; right: 0; background: #fff; border-radius: 18px; box-shadow: var(--shadow-hover); padding: 16px; flex-direction: column; align-items: stretch; gap: 8px; border: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-link { padding: 14px 16px; justify-content: flex-start; }
  .nav-cta { margin-left: 0; width: 100%; }
  .hero-content { grid-template-columns: 1fr; gap: 32px; }
  .hero-meta { gap: 16px; }
  .news-grid { grid-template-columns: 1fr; gap: 20px; }
  .compare-section { overflow-x: auto; padding: 32px 20px; }
  .compare-grid { min-width: 720px; }
  .countdown-inner { flex-direction: column; text-align: center; }
  .countdown-cta { margin-left: 0; }
  .countdown-box { justify-content: center; width: 100%; }
}
@media (max-width: 640px) {
  .site-header { padding: 0 12px; top: 8px; }
  .main-nav { padding: 10px 16px; border-radius: 16px; }
  .nav-logo { font-size: 17px; }
  .logo-icon { width: 34px; height: 34px; font-size: 15px; }
  .hero-section { margin: 16px 12px 0; padding: 40px 22px; border-radius: 22px; }
  .hero-title { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .hero-btns .btn { width: 100%; }
  .section { padding: 56px 0 0; }
  .section-title { font-size: 26px; }
  .section-head { margin-bottom: 32px; }
  .trust-bar { margin: 16px 12px 0; padding: 20px; border-radius: 18px; }
  .trust-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .trust-item { flex-direction: column; text-align: center; padding: 16px 12px; }
  .trust-icon { margin-bottom: 6px; }
  .steps-wrap { padding: 36px 20px; border-radius: 22px; }
  .steps-grid { flex-direction: column; align-items: stretch; }
  .step-card { max-width: none; }
  .step-card.recommended { max-width: none; padding: 36px 30px; }
  .news-section { padding: 36px 20px; border-radius: 22px; }
  .compare-section { padding: 28px 0; border-radius: 22px; }
  .countdown-section { padding: 40px 22px; border-radius: 22px; }
  .countdown-title { font-size: 22px; }
  .count-col { min-width: 68px; padding: 14px 8px; }
  .count-col span { font-size: 24px; }
  .contact-section { padding: 36px 20px; border-radius: 22px; }
  .cta-strip { padding: 28px 20px; }
  .footer { padding-top: 40px; border-radius: 24px 24px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { margin-top: 28px; }
  .accordion-title { font-size: 15px; padding: 18px 16px !important; }
  .accordion-content { padding: 0 16px 18px 42px; }
}

/* roulang page: article */
:root {
  --primary: #3b7ddd;
  --primary-light: #eaf1fe;
  --primary-dark: #1f3a6b;
  --accent: #f59e0b;
  --accent-light: #fff4e0;
  --success: #22a06b;
  --bg: #f2f5fa;
  --card: #ffffff;
  --text: #1b2a41;
  --text-secondary: #5d6b82;
  --border: #dfe6f0;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(59, 125, 221, 0.08);
  --shadow-hover: 0 14px 44px rgba(59, 125, 221, 0.15);
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  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;
}

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

a:hover {
  color: var(--primary-dark);
}

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

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

/* ===== 导航 ===== */
.site-header {
  padding: 20px 24px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.main-nav {
  max-width: 1280px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: 0 8px 30px rgba(31, 58, 107, 0.08);
  border: 1px solid rgba(223, 230, 240, 0.7);
  transition: var(--transition);
}

.main-nav.scrolled {
  box-shadow: 0 10px 40px rgba(31, 58, 107, 0.14);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 16px;
}

.nav-toggle {
  display: none;
  background: var(--primary-light);
  border: none;
  color: var(--primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--primary);
  color: #fff;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 15px;
  background: #f0f3f9;
  transition: var(--transition);
  line-height: 1.2;
}

.nav-link i {
  font-size: 14px;
  color: var(--primary);
  transition: var(--transition);
}

.nav-link:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.nav-link:hover i {
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 125, 221, 0.3);
}

.nav-link.active i {
  color: #fff;
}

.nav-cta {
  margin-left: 8px;
  white-space: nowrap;
}

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

.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(59, 125, 221, 0.4);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 125, 221, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(31, 58, 107, 0.28);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(59, 125, 221, 0.2);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
  background: #d97706;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(217, 119, 6, 0.3);
}

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

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

/* ===== 面包屑 ===== */
.breadcrumb-bar {
  padding: 28px 0 8px;
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  background: #fff;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.breadcrumb-inner a {
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb-inner a:hover {
  color: var(--primary);
}

.breadcrumb-inner .sep {
  color: #a4b2c8;
  font-size: 12px;
}

.breadcrumb-inner .current {
  color: var(--text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

/* ===== 文章头 ===== */
.article-hero {
  padding: 32px 0 8px;
}

.article-hero-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 48px 48px 40px;
  text-align: center;
}

.article-hero-card .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.article-hero-card h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta i {
  color: var(--primary);
}

.article-cover {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(31, 58, 107, 0.08);
}

.article-cover img {
  width: 100%;
  max-height: 460px;
  object-fit: cover;
}

/* ===== 正文 ===== */
.article-section {
  padding: 40px 0 8px;
}

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

.article-body {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 48px;
}

.article-body p {
  font-size: 16.5px;
  line-height: 1.85;
  color: #2a3a52;
  margin-bottom: 1.6em;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-top: 1.8em;
  margin-bottom: 0.8em;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.6em 1.4em;
  color: #2a3a52;
  font-size: 16.5px;
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 0.4em;
}

.article-body blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.8em 0;
  padding: 20px 24px;
  color: var(--primary-dark);
  font-weight: 500;
}

.article-body img {
  width: 100%;
  border-radius: 14px;
  margin: 24px 0;
}

.article-body a {
  font-weight: 600;
  border-bottom: 1px solid var(--primary);
  padding-bottom: 1px;
}

.article-body a:hover {
  border-bottom-color: var(--primary-dark);
}

.article-body code {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border-radius: 12px;
  overflow: hidden;
  font-size: 15px;
}

.article-body table th {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}

.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.article-body table tr:last-child td {
  border-bottom: none;
}

/* ===== 空态 ===== */
.not-found-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px dashed #c6d3e5;
  padding: 64px 32px;
  text-align: center;
}

.not-found-card .icon {
  font-size: 48px;
  color: #a4b2c8;
  margin-bottom: 16px;
}

.not-found-card h2 {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 10px;
}

.not-found-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== 标签 ===== */
.tag-section {
  padding: 32px 0 8px;
}

.tag-wrap {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-label {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  margin-right: 4px;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f0f3f9;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  transition: var(--transition);
}

.tag-item:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
}

.tag-item i {
  font-size: 12px;
  color: var(--primary);
}

/* ===== 上下篇 ===== */
.prevnext-section {
  padding: 32px 0 8px;
}

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

.prevnext-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 24px 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
}

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

.prevnext-card .dir {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 4px;
}

.prevnext-card .title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.prevnext-card:hover .title {
  color: var(--primary);
}

.prevnext-card .icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 40px 0 8px;
}

.section-head {
  text-align: center;
  margin-bottom: 32px;
}

.section-head .section-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.3px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.related-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}

.related-card .cover img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.related-card .body {
  padding: 24px;
}

.related-card .cat {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.related-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}

.related-card h3 a {
  color: var(--text);
}

.related-card h3 a:hover {
  color: var(--primary);
}

.related-card .desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.related-card .foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #a4b2c8;
}

.related-card .foot a {
  color: var(--primary);
  font-weight: 600;
}

.related-card .foot a:hover {
  color: var(--primary-dark);
}

/* ===== CTA ===== */
.cta-section {
  padding: 48px 0 24px;
}

.cta-banner {
  background: var(--primary-dark);
  border-radius: var(--radius);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.cta-banner .cta-content {
  position: relative;
  z-index: 2;
  color: #fff;
}

.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-banner p {
  color: #c8d4ea;
  font-size: 15px;
  max-width: 560px;
}

.cta-banner .cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: #c8d4ea;
  margin-top: 64px;
  padding: 64px 0 0;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  background: var(--primary);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: #a8b8d0;
  margin-bottom: 18px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #c8d4ea;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
}

.badge-success {
  background: rgba(34, 160, 107, 0.2);
  color: #7dd3a8;
}

.footer-col h3 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #a8b8d0;
  font-size: 14px;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col ul li a i {
  font-size: 10px;
  color: var(--primary);
}

.footer-col .footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #a8b8d0;
  font-size: 14px;
}

.footer-col .footer-contact li i {
  color: var(--primary);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
  color: #7d8ca8;
}

.footer-bottom a {
  color: #a8b8d0;
}

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

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0;
  }

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

  .nav-link {
    justify-content: flex-start;
    padding: 14px 18px;
  }

  .nav-cta {
    margin: 8px 0 4px;
    justify-content: center;
  }

  .nav-inner {
    flex-wrap: wrap;
  }

  .article-hero-card {
    padding: 32px 24px;
  }

  .article-hero-card h1 {
    font-size: 30px;
  }

  .article-body {
    padding: 32px 28px;
  }

  .related-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media screen and (max-width: 768px) {
  .site-header {
    padding: 12px 12px 0;
  }

  .nav-inner {
    padding: 12px 14px;
  }

  .nav-logo {
    font-size: 17px;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .article-hero-card {
    padding: 28px 20px;
    border-radius: 14px;
  }

  .article-hero-card h1 {
    font-size: 24px;
  }

  .article-meta {
    gap: 12px;
    font-size: 13px;
  }

  .article-body {
    padding: 24px 20px;
    border-radius: 14px;
  }

  .article-body p,
  .article-body ul,
  .article-body ol {
    font-size: 15.5px;
  }

  .article-body h2 {
    font-size: 20px;
  }

  .article-body h3 {
    font-size: 17px;
  }

  .prevnext-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cta-banner {
    flex-direction: column;
    text-align: center;
    padding: 40px 24px;
  }

  .cta-banner .cta-actions {
    justify-content: center;
  }

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

  .breadcrumb-inner .current {
    max-width: 180px;
  }
}

@media screen and (max-width: 520px) {
  .nav-logo {
    font-size: 15px;
  }

  .nav-inner {
    gap: 10px;
  }

  .article-hero-card h1 {
    font-size: 21px;
    line-height: 1.35;
  }

  .article-meta {
    gap: 8px;
    flex-direction: column;
    align-items: center;
  }

  .article-meta span {
    font-size: 13px;
  }

  .tag-wrap {
    padding: 20px;
  }

  .tag-item {
    font-size: 12px;
    padding: 5px 10px;
  }

  .cta-banner h2 {
    font-size: 22px;
  }

  .cta-banner p {
    font-size: 14px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2f6bd8;
  --primary-rgb: 47, 107, 216;
  --primary-dark: #132b4f;
  --primary-light: #ebf1fe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #17233b;
  --text-sub: #516181;
  --text-light: #8996ab;
  --border: #e3e9f2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 8px 30px rgba(47, 107, 216, 0.08);
  --shadow-lg: 0 14px 44px rgba(23, 43, 99, 0.12);
  --transition: all .25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--primary-dark);
}

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

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input, textarea {
  font-family: inherit;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  background: #fff;
  color: var(--text);
  width: 100%;
  outline: none;
  transition: var(--transition);
}

input:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 107, 216, 0.14);
}

input::placeholder, textarea::placeholder {
  color: var(--text-light);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

@media (max-width: 640px) {
  .section {
    padding: 60px 0;
  }
}

.section-head {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head.left {
  margin-left: 0;
  margin-right: 0;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary-dark);
  margin-bottom: 14px;
  position: relative;
}

.section-head.center h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  border-radius: 4px;
  background: var(--accent);
  margin: 18px auto 0;
}

.section-head.left h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  border-radius: 4px;
  background: var(--accent);
  margin: 18px 0 0;
}

.section-head p {
  color: var(--text-sub);
  font-size: 16px;
  margin-top: 12px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(47, 107, 216, 0.35);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(47, 107, 216, 0.24);
}

.btn-primary:hover {
  background: #235bcc;
  color: #fff;
  box-shadow: 0 10px 26px rgba(47, 107, 216, 0.32);
}

.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.3);
}

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

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 999px;
}

.badge-success {
  background: #e6f6ed;
  color: #1d8044;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 1000;
  padding: 0 24px;
}

.main-nav {
  max-width: 1280px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.94);
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

.nav-logo:hover {
  color: var(--primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 15px;
  border-radius: 12px;
  color: var(--text-sub);
  font-size: 14.5px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-link i {
  font-size: 14px;
  color: #a9b6c9;
  transition: var(--transition);
}

.nav-link:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
}

.nav-link:hover i {
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(47, 107, 216, 0.22);
}

.nav-link.active i {
  color: var(--primary);
}

.nav-cta {
  margin-left: 10px;
}

@media (max-width: 960px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 12px;
    right: 12px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    gap: 6px;
  }

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

  .nav-link {
    justify-content: flex-start;
    padding: 13px 16px;
    font-size: 15px;
  }

  .nav-cta {
    margin: 8px 0 0;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0 14px;
    top: 8px;
  }

  .nav-inner {
    padding: 8px 12px;
  }

  .nav-logo {
    font-size: 16px;
  }
}

/* ===== Hero ===== */
.page-hero {
  padding: 0 24px;
  margin-top: 20px;
}

.page-hero-inner {
  position: relative;
  overflow: hidden;
  background: #fff;
  border-radius: 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  padding: 64px 56px;
}

.page-hero-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}

.page-hero-inner::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(47, 107, 216, 0.06);
  z-index: 0;
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.page-hero-content h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-dark);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.page-hero-content h1 span {
  color: var(--primary);
}

.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-sub);
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-hero-media {
  position: relative;
  z-index: 1;
}

.page-hero-media img {
  border-radius: 20px;
  box-shadow: 0 18px 48px rgba(23, 43, 99, 0.16);
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

@media (max-width: 1024px) {
  .page-hero-inner {
    grid-template-columns: 1fr;
    padding: 48px 32px;
    gap: 32px;
  }

  .page-hero-content h1 {
    font-size: 36px;
  }

  .page-hero-media {
    max-width: 520px;
  }
}

@media (max-width: 640px) {
  .page-hero {
    padding: 0 14px;
  }

  .page-hero-inner {
    padding: 36px 22px;
    border-radius: 20px;
  }

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

  .hero-sub {
    font-size: 15px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }
}

/* ===== 认证服务概况 ===== */
.guide-section {
  background: var(--bg);
}

.guide-media {
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.guide-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-media:hover img {
  transform: scale(1.03);
}

.guide-list {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.guide-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  transition: var(--transition);
}

.guide-list li:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: rgba(47, 107, 216, 0.25);
}

.guide-list li > i {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.guide-list li strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 2px;
}

.guide-list li span {
  font-size: 13.5px;
  color: var(--text-sub);
}

@media (max-width: 640px) {
  .guide-list {
    grid-template-columns: 1fr;
  }
}

/* ===== 流程 ===== */
.process-section {
  background: #fff;
}

.process-list {
  max-width: 880px;
  margin: 0 auto;
}

.process-item {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 36px 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}

.process-item:last-child {
  border-bottom: none;
}

.process-num {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(47, 107, 216, 0.16);
  transition: var(--transition);
}

.process-item:hover .process-num {
  background: var(--primary);
  color: #fff;
  transform: scale(1.04);
}

.process-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.process-content p {
  color: var(--text-sub);
  font-size: 15.5px;
  max-width: 620px;
}

.process-arrow {
  color: var(--text-light);
  font-size: 20px;
  margin-left: auto;
  flex-shrink: 0;
  transition: var(--transition);
}

.process-item:hover .process-arrow {
  color: var(--primary);
  transform: translateX(6px);
}

@media (max-width: 640px) {
  .process-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 28px 4px;
  }

  .process-arrow {
    display: none;
  }

  .process-num {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    font-size: 18px;
  }
}

/* ===== 权益 ===== */
.benefit-section {
  background: var(--bg);
}

.benefit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 980px;
  margin: 0 auto;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 30px;
  box-shadow: 0 4px 18px rgba(23, 43, 99, 0.04);
  transition: var(--transition);
}

.benefit-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(47, 107, 216, 0.2);
}

.benefit-icon {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit-item:nth-child(2) .benefit-icon {
  background: #fff4e0;
  color: var(--accent-dark);
}

.benefit-item:nth-child(3) .benefit-icon {
  background: #e6f6ed;
  color: #1d8044;
}

.benefit-item:nth-child(4) .benefit-icon {
  background: #f0eaff;
  color: #6d4ed8;
}

.benefit-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.benefit-item p {
  color: var(--text-sub);
  font-size: 14.5px;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 768px) {
  .benefit-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== 适用对象 ===== */
.audience-section {
  background: #fff;
}

.audience-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1020px;
  margin: 0 auto;
}

.audience-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 38px 36px;
  transition: var(--transition);
  position: relative;
}

.audience-card.accent {
  background: var(--primary-light);
  border-color: rgba(47, 107, 216, 0.18);
}

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

.audience-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.audience-head i {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #fff;
  color: var(--primary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(47, 107, 216, 0.12);
}

.audience-card.accent .audience-head i {
  background: var(--primary);
  color: #fff;
}

.audience-head h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-dark);
}

.audience-card p {
  color: var(--text-sub);
  font-size: 15px;
  margin-bottom: 20px;
}

.audience-card ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: var(--text);
  padding: 7px 0;
}

.audience-card ul li i {
  color: var(--primary);
  font-size: 13px;
}

@media (max-width: 768px) {
  .audience-wrap {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .audience-card {
    padding: 28px 24px;
  }
}

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

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(47, 107, 216, 0.24);
}

.faq-item.active {
  box-shadow: var(--shadow);
  border-color: rgba(47, 107, 216, 0.3);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}

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

.faq-q .faq-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: var(--transition);
}

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

.faq-a {
  display: none;
  padding: 0 24px 22px;
  color: var(--text-sub);
  font-size: 14.5px;
  line-height: 1.85;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.faq-a p {
  margin: 0;
}

/* ===== CTA横幅 ===== */
.cta-banner {
  background: var(--primary-dark);
  border-radius: 26px;
  margin: 80px 24px 0;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.cta-text h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-text p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 520px;
}

.cta-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cta-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14.5px;
}

.cta-contact li i {
  color: var(--accent);
  font-size: 15px;
  width: 20px;
  text-align: center;
}

.cta-form {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  padding: 30px;
  backdrop-filter: blur(8px);
}

.cta-form input {
  background: rgba(255, 255, 255, 0.96);
  border: none;
  margin-bottom: 12px;
}

.cta-form .btn {
  width: 100%;
  margin-top: 4px;
}

@media (max-width: 900px) {
  .cta-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .cta-banner {
    margin: 56px 14px 0;
    padding: 40px 0;
    border-radius: 20px;
  }

  .cta-text h2 {
    font-size: 24px;
  }
}

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.74);
  margin-top: 80px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 72px 24px 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 44px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.footer-about {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.66);
  margin-bottom: 18px;
  max-width: 360px;
}

.footer .badge {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.88);
}

.footer .badge-success {
  background: rgba(46, 195, 111, 0.16);
  color: #5fe39a;
}

.footer-col h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-top: 6px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 14.5px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 3px;
}

.footer-col ul li a i {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.34);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
  margin-bottom: 13px;
}

.footer-contact li i {
  width: 18px;
  text-align: center;
  color: rgba(255, 255, 255, 0.46);
}

.footer-bottom {
  text-align: center;
  padding-top: 28px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .footer-inner {
    padding: 48px 18px 24px;
  }

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

/* ===== Foundation 自定义覆盖 ===== */
.grid-container {
  max-width: 1280px;
}

.cell h1, .cell h2, .cell h3, .cell p {
  margin-bottom: 0;
}

a i {
  pointer-events: none;
}

/* roulang page: category2 */
:root{
  --primary:#3b6fa8;
  --primary-dark:#1e3a5f;
  --primary-light:#e8f0f7;
  --primary-lighter:#f0f5fa;
  --accent:#e8923a;
  --accent-dark:#d07d24;
  --success:#2e7d5a;
  --warning:#c94b3f;
  --bg:#f4f7fa;
  --card-bg:#ffffff;
  --text:#2b3a4a;
  --text-secondary:#5d6f80;
  --text-light:#8b9bab;
  --border:#dfe6ed;
  --radius:18px;
  --radius-sm:10px;
  --radius-lg:24px;
  --shadow:0 8px 30px rgba(59,111,168,0.08);
  --shadow-lg:0 14px 44px rgba(59,111,168,0.14);
  --shadow-accent:0 8px 26px rgba(232,146,58,0.22);
  --transition:all .3s cubic-bezier(.25,.8,.25,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
ul{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.row{max-width:1200px;margin:0 auto}
.section{padding:88px 0;position:relative}
.section-header{margin-bottom:48px;text-align:center}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--primary);background:var(--primary-light);
  padding:6px 16px;border-radius:100px;margin-bottom:14px;
  text-transform:uppercase;
}
.section-title{
  font-size:32px;font-weight:700;line-height:1.25;color:var(--text);
  margin-bottom:12px;letter-spacing:-.02em;
}
.section-title::before{
  content:"";display:inline-block;width:5px;height:28px;
  background:var(--accent);border-radius:4px;margin-right:12px;
  vertical-align:-4px;
}
.section-sub{font-size:16px;color:var(--text-secondary);max-width:680px;margin:0 auto}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:2px solid transparent;
  cursor:pointer;transition:var(--transition);line-height:1.4;
  text-decoration:none;justify-content:center;
}
.btn:focus-visible{outline:3px solid rgba(59,111,168,.45);outline-offset:3px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 20px rgba(59,111,168,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 28px rgba(59,111,168,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 32px rgba(232,146,58,.3)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-dark{background:var(--primary-dark);color:#fff}
.btn-dark:hover{background:#162b47;color:#fff;transform:translateY(-2px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;padding:5px 14px;
  border-radius:100px;background:var(--primary-light);color:var(--primary);
}
.badge-accent{background:#fdeedc;color:var(--accent-dark)}
.badge-success{background:#e3f2ec;color:var(--success)}

/* ===== 导航 ===== */
.site-header{position:relative;z-index:100;padding:18px 24px 0}
.main-nav{
  max-width:1200px;margin:0 auto;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  border:1px solid rgba(223,230,237,.6);
  transition:var(--transition);
}
.main-nav.is-scrolled{position:fixed;top:12px;left:50%;transform:translateX(-50%);width:calc(100% - 48px);max-width:1200px;box-shadow:var(--shadow-lg)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;gap:16px}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:700;color:var(--text);
  white-space:nowrap;text-decoration:none;
}
.nav-logo:hover{color:var(--text)}
.logo-icon{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;flex-shrink:0;
}
.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:100px;
  font-size:14px;font-weight:500;color:var(--text-secondary);
  background:transparent;border:1.5px solid transparent;
  transition:var(--transition);text-decoration:none;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-1px)}
.nav-link.active{
  background:var(--primary-light);color:var(--primary);
  border-color:var(--primary);font-weight:600;
}
.nav-link i{font-size:14px}
.nav-cta{margin-left:4px}
.nav-toggle{
  display:none;background:none;border:none;font-size:22px;
  color:var(--text);cursor:pointer;padding:8px;border-radius:8px;
}
.nav-toggle:focus-visible{outline:3px solid rgba(59,111,168,.4)}
@media (max-width:1024px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;width:100%;flex-direction:column;gap:6px;
    padding-top:12px;border-top:1px solid var(--border);
  }
  .nav-links.open{display:flex}
  .nav-link{width:100%;justify-content:flex-start;padding:12px 18px;border-radius:12px}
  .nav-cta{margin-left:0;width:100%}
  .nav-inner{flex-wrap:wrap}
}
@media (max-width:640px){
  .site-header{padding:10px 12px 0}
  .nav-inner{padding:10px 14px}
  .nav-logo{font-size:17px}
  .logo-icon{width:34px;height:34px;font-size:14px}
}

/* ===== Hero ===== */
.license-hero{
  position:relative;padding:72px 0 56px;overflow:hidden;
  background:linear-gradient(180deg,#eef3f8 0%,var(--bg) 100%);
}
.license-hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.license-hero::before{
  content:"";position:absolute;top:-100px;right:-100px;width:360px;height:360px;
  border-radius:50%;background:radial-gradient(circle,rgba(59,111,168,.12),transparent 70%);
}
.hero-card{
  background:rgba(255,255,255,.9);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);border:1px solid rgba(223,230,237,.5);
  padding:48px;position:relative;
}
.hero-grid{display:flex;align-items:center;gap:44px}
.hero-content{flex:1.1}
.hero-visual{flex:.9}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-light);color:var(--primary);
  padding:7px 18px;border-radius:100px;font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.hero-badge i{font-size:14px}
.hero-title{
  font-size:44px;font-weight:700;line-height:1.18;
  color:var(--text);margin-bottom:16px;letter-spacing:-.02em;
}
.hero-title .highlight{color:var(--primary);position:relative}
.hero-desc{
  font-size:17px;color:var(--text-secondary);line-height:1.8;
  max-width:560px;margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero-trust{display:flex;gap:16px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--border)}
.hero-trust span{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-secondary)}
.hero-trust i{color:var(--success)}
.hero-visual .visual-wrap{
  background:var(--primary-lighter);border-radius:var(--radius-lg);
  padding:18px;position:relative;overflow:hidden;
}
.hero-visual .visual-wrap img{border-radius:var(--radius);box-shadow:var(--shadow)}
.visual-float{
  position:absolute;bottom:26px;left:-14px;
  background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);
  padding:12px 18px;display:flex;align-items:center;gap:10px;font-size:13px;
}
.visual-float i{color:var(--success);font-size:18px}
@media (max-width:1024px){
  .hero-grid{flex-direction:column}
  .hero-visual{width:100%}
  .hero-title{font-size:36px}
}
@media (max-width:640px){
  .license-hero{padding:40px 0 40px}
  .hero-card{padding:28px 20px}
  .hero-title{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-trust{flex-direction:column;gap:10px}
}

/* ===== 图文卖点 ===== */
.feature-block{display:flex;align-items:center;gap:56px;margin-bottom:40px}
.feature-block.reverse{flex-direction:row-reverse}
.feature-media{flex:1;background:var(--primary-lighter);border-radius:var(--radius-lg);padding:14px;position:relative}
.feature-media img{border-radius:var(--radius);box-shadow:var(--shadow)}
.feature-media::after{
  content:"";position:absolute;bottom:-14px;right:-14px;width:80px;height:80px;
  border-radius:20px;background:var(--accent);opacity:.12;z-index:-1;
}
.feature-content{flex:1}
.feature-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-light);color:var(--primary);
  padding:5px 14px;border-radius:100px;font-size:12px;font-weight:600;
  letter-spacing:.06em;margin-bottom:14px;
}
.feature-content h3{font-size:26px;font-weight:700;margin-bottom:14px;color:var(--text);line-height:1.3}
.feature-content p{color:var(--text-secondary);font-size:16px;margin-bottom:20px}
.feature-list{display:flex;flex-direction:column;gap:12px}
.feature-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text)}
.feature-list li i{color:var(--primary);margin-top:5px;font-size:15px}
@media (max-width:1024px){
  .feature-block,.feature-block.reverse{flex-direction:column;gap:32px}
  .feature-media{width:100%}
}
@media (max-width:640px){
  .feature-content h3{font-size:22px}
}

/* ===== 适用场景 ===== */
.scenario-wrap{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:10px;
}
.scenario-card{
  background:var(--card-bg);border-radius:var(--radius);
  border:1px solid var(--border);box-shadow:var(--shadow);
  padding:30px;transition:var(--transition);position:relative;overflow:hidden;
}
.scenario-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--primary-light));opacity:0;
  transition:var(--transition);
}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.scenario-card:hover::before{opacity:1}
.scenario-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:18px;transition:var(--transition);
}
.scenario-card:hover .scenario-icon{background:var(--primary);color:#fff}
.scenario-card h3{font-size:19px;font-weight:600;margin-bottom:10px;color:var(--text)}
.scenario-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}
@media (max-width:768px){
  .scenario-wrap{grid-template-columns:1fr}
}

/* ===== 流程时间线 ===== */
.process-section{background:var(--card-bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;margin-top:20px;
}
.timeline::before{
  content:"";position:absolute;top:28px;left:60px;right:60px;height:3px;
  background:linear-gradient(90deg,var(--primary-light),var(--primary),var(--primary-light));
  border-radius:4px;
}
.timeline-item{
  position:relative;text-align:center;padding:0 8px;
}
.timeline-num{
  width:58px;height:58px;margin:0 auto 18px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;border:3px solid #fff;
  box-shadow:var(--shadow);position:relative;z-index:1;
  transition:var(--transition);
}
.timeline-item:hover .timeline-num{background:var(--primary);color:#fff}
.timeline-item h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--text)}
.timeline-item p{font-size:14px;color:var(--text-secondary);line-height:1.7}
@media (max-width:1024px){
  .timeline{grid-template-columns:repeat(2,1fr)}
  .timeline::before{display:none}
}
@media (max-width:640px){
  .timeline{grid-template-columns:1fr}
}

/* ===== 数据区 ===== */
.stats-wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--primary-dark);border-radius:var(--radius-lg);
  padding:48px 40px;color:#fff;position:relative;overflow:hidden;
}
.stats-wrap::before{
  content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.stats-wrap::after{
  content:"";position:absolute;bottom:-40px;left:30%;width:140px;height:140px;
  border-radius:50%;background:rgba(255,255,255,.03);
}
.stat-item{text-align:center;position:relative;z-index:1}
.stat-icon{font-size:28px;margin-bottom:12px;color:var(--accent)}
.stat-value{font-size:28px;font-weight:700;margin-bottom:4px;letter-spacing:-.02em}
.stat-label{font-size:14px;color:rgba(255,255,255,.7)}
@media (max-width:1024px){
  .stats-wrap{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:640px){
  .stats-wrap{grid-template-columns:1fr 1fr;padding:36px 24px}
  .stat-value{font-size:22px}
}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:20px auto 0;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card-bg);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;transition:var(--transition);
}
.faq-item:hover{border-color:var(--primary-light);box-shadow:var(--shadow)}
.faq-item.active{box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.faq-question{
  display:flex;align-items:center;gap:14px;padding:20px 24px;
  cursor:pointer;font-size:16px;font-weight:600;color:var(--text);
  background:none;border:none;width:100%;text-align:left;
}
.faq-question:focus-visible{outline:3px solid rgba(59,111,168,.4)}
.faq-q-icon{
  width:28px;height:28px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;flex-shrink:0;transition:var(--transition);
}
.faq-item.active .faq-q-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-question .faq-arrow{margin-left:auto;color:var(--text-light);transition:var(--transition)}
.faq-item.active .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-answer{
  padding:0 24px;max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-answer-inner{padding:0 0 22px;color:var(--text-secondary);font-size:15px;line-height:1.8;border-top:1px solid var(--border);padding-top:16px}
.faq-answer-inner p{margin-bottom:10px}
.faq-answer-inner p:last-child{margin-bottom:0}

/* ===== CTA ===== */
.cta-section{position:relative;padding:80px 0}
.cta-banner{
  position:relative;background:var(--primary-dark);border-radius:var(--radius-lg);
  padding:64px 56px;overflow:hidden;text-align:center;
}
.cta-banner::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:100%;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.12;
}
.cta-banner::after{
  content:"";position:absolute;top:-80px;right:-80px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.cta-banner>*{position:relative;z-index:1}
.cta-banner h2{font-size:32px;color:#fff;font-weight:700;margin-bottom:14px;letter-spacing:-.02em}
.cta-banner p{color:rgba(255,255,255,.8);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media (max-width:640px){
  .cta-banner{padding:40px 24px}
  .cta-banner h2{font-size:24px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ===== 页脚 ===== */
.footer{
  background:var(--primary-dark);color:rgba(255,255,255,.75);
  padding:64px 0 28px;margin-top:40px;
}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:40px}
.footer-logo{
  display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;margin-bottom:16px;
}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:18px;max-width:300px}
.footer-col h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{
  color:rgba(255,255,255,.65);font-size:14px;
  display:inline-flex;align-items:center;gap:8px;transition:var(--transition);
}
.footer-col ul a:hover{color:#fff;transform:translateX(4px)}
.footer-col ul a i{font-size:11px;color:var(--accent)}
.footer-contact li{
  display:flex;align-items:center;gap:10px;font-size:14px;
  color:rgba(255,255,255,.65);margin-bottom:10px;
}
.footer-contact li i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ===== 通用辅助 ===== */
.text-center{text-align:center}
.mt-20{margin-top:20px}
.mb-20{margin-bottom:20px}
.section-divider{border:none;border-top:1px solid var(--border);margin:0}
@media (max-width:640px){
  .section{padding:60px 0}
  .section-title{font-size:24px}
  .section-title::before{height:22px;vertical-align:-3px}
  .section-sub{font-size:15px}
}

/* roulang page: category3 */
:root{
  --primary:#3d7eb9;
  --primary-dark:#1f4662;
  --primary-light:#e8f1f8;
  --accent:#e8993a;
  --accent-dark:#c97b1e;
  --bg:#f0f4f8;
  --card:#ffffff;
  --card-warm:#fdfbf7;
  --text:#23374a;
  --text-secondary:#5a7184;
  --text-light:#8ca3b5;
  --border:#e3ebf2;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 4px 16px rgba(61,126,185,0.08);
  --shadow-md:0 8px 30px rgba(61,126,185,0.10);
  --shadow-lg:0 16px 40px rgba(61,126,185,0.14);
  --transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
  --space-section:90px;
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--space-section) 0}
.section-tight{padding:56px 0}

/* ── Navigation ── */
.site-header{
  position:relative;
  z-index:100;
  padding:16px 24px 0;
}
.main-nav{
  max-width:1200px;
  margin:0 auto;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  border:1px solid rgba(255,255,255,0.6);
  padding:0 28px;
  transition:var(--transition);
}
.main-nav.is-sticky{
  position:fixed;
  top:12px;
  left:50%;
  transform:translateX(-50%);
  width:calc(100% - 48px);
  max-width:1200px;
  box-shadow:var(--shadow-lg);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:16px;
}
.nav-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.nav-logo:hover{color:var(--primary)}
.logo-icon{
  width:38px;height:38px;
  background:var(--primary);
  color:#fff;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  box-shadow:0 4px 12px rgba(61,126,185,0.3);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:12px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  background:transparent;
  border:1px solid transparent;
  white-space:nowrap;
  transition:var(--transition);
}
.nav-link i{font-size:13px;color:var(--text-light);transition:var(--transition)}
.nav-link:hover{
  background:var(--primary-light);
  color:var(--primary);
  transform:translateY(-2px);
}
.nav-link:hover i{color:var(--primary)}
.nav-link.active{
  background:var(--primary-light);
  color:var(--primary);
  border-color:rgba(61,126,185,0.25);
  font-weight:600;
}
.nav-link.active i{color:var(--primary)}
.nav-cta{
  margin-left:6px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  font-size:22px;
  color:var(--text);
  cursor:pointer;
  padding:8px 12px;
  border-radius:10px;
  transition:var(--transition);
}
.nav-toggle:hover{background:var(--primary-light);color:var(--primary)}
@media(max-width:1024px){
  .nav-inner{flex-wrap:wrap;height:auto;padding:14px 0}
  .nav-toggle{display:block}
  .nav-links{
    display:none;
    width:100%;
    flex-direction:column;
    gap:8px;
    padding:12px 0 16px;
  }
  .nav-links.open{display:flex}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    padding:14px 18px;
    font-size:15px;
    border-radius:var(--radius-md);
    background:var(--bg);
  }
  .nav-link.active{
    background:var(--primary-light);
    border-color:rgba(61,126,185,0.2);
  }
  .nav-cta{
    width:100%;
    justify-content:center;
    margin-left:0;
    margin-top:4px;
  }
  .nav-cta.btn-primary{
    display:flex;
    align-items:center;
    justify-content:center;
  }
}
@media(max-width:640px){
  .main-nav{padding:0 18px}
  .nav-logo{font-size:17px}
}

/* ── Buttons ── */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 26px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  font-family:var(--font-main);
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  line-height:1.4;
  text-align:center;
  justify-content:center;
}
.btn:focus-visible{
  outline:3px solid rgba(61,126,185,0.4);
  outline-offset:2px;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 4px 14px rgba(61,126,185,0.25);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(61,126,185,0.3);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 2px 8px rgba(61,126,185,0.2);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 4px 14px rgba(232,153,58,0.25);
}
.btn-accent:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(232,153,58,0.3);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-outline:hover{
  background:var(--primary-light);
  color:var(--primary-dark);
  transform:translateY(-2px);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,0.6);
}
.btn-outline-light:hover{
  background:rgba(255,255,255,0.15);
  color:#fff;
  transform:translateY(-2px);
}

/* ── Badges ── */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-light);
  color:var(--primary);
}
.badge i{font-size:11px}
.badge-success{
  background:#e3f5e9;
  color:#2e7d4f;
}
.badge-accent{
  background:#fdf0dd;
  color:var(--accent-dark);
}
.badge-tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:var(--bg);
  color:var(--text-secondary);
  border:1px solid var(--border);
}

/* ── Hero Banner ── */
.hero{
  position:relative;
  padding:40px 24px 60px;
}
.hero-inner{
  max-width:1200px;
  margin:0 auto;
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(135deg, #ffffff 0%, #f4f8fc 60%, #e8f1f8 100%);
  box-shadow:var(--shadow-md);
  border:1px solid var(--border);
  padding:56px 48px;
  display:flex;
  align-items:center;
  gap:48px;
}
.hero-bg{
  position:absolute;
  top:0;right:0;width:50%;height:100%;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:0.08;
  z-index:0;
}
.hero-content{
  flex:1.2;
  position:relative;
  z-index:1;
}
.hero-visual{
  flex:0.8;
  position:relative;
  z-index:1;
}
.hero h1{
  font-size:42px;
  font-weight:700;
  line-height:1.2;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:-0.02em;
}
.hero h1 .highlight{
  color:var(--primary);
  position:relative;
}
.hero h1 .highlight::after{
  content:'';
  position:absolute;
  bottom:2px;
  left:0;
  width:100%;
  height:10px;
  background:rgba(61,126,185,0.15);
  z-index:-1;
  border-radius:4px;
}
.hero p{
  font-size:17px;
  color:var(--text-secondary);
  line-height:1.75;
  margin-bottom:24px;
  max-width:540px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:20px;
}
.hero-actions .btn{
  min-width:130px;
}
.hero-tags{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.hero-visual img{
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  width:100%;
  height:280px;
  object-fit:cover;
}
@media(max-width:1024px){
  .hero-inner{padding:40px 32px;gap:32px;flex-direction:column}
  .hero-visual{width:100%;max-width:480px}
  .hero h1{font-size:32px}
}
@media(max-width:640px){
  .hero{padding:24px 16px 40px}
  .hero-inner{padding:32px 20px}
  .hero h1{font-size:26px}
  .hero p{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}

/* ── Page Header (category page title area) ── */
.page-header{
  padding:44px 24px 26px;
}
.page-header-inner{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  background:#fff;
  border-radius:var(--radius-lg);
  padding:36px 40px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  position:relative;
  overflow:hidden;
}
.page-header-inner::before{
  content:'';
  position:absolute;
  top:0;left:0;width:6px;height:100%;
  background:var(--primary);
  border-radius:3px;
}
.page-header h1{
  font-size:32px;
  font-weight:700;
  color:var(--text);
  margin-bottom:6px;
  line-height:1.3;
}
.page-header p{
  font-size:15px;
  color:var(--text-secondary);
  max-width:600px;
}
.page-header .page-icon{
  width:58px;height:58px;
  background:var(--primary-light);
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
  color:var(--primary);
  flex-shrink:0;
}
@media(max-width:640px){
  .page-header{padding:24px 16px 30px}
  .page-header-inner{padding:28px 24px;flex-direction:column;align-items:flex-start;gap:14px}
  .page-header h1{font-size:26px}
}

/* ── CTA strip ── */
.cta-strip{
  background:var(--primary-dark);
  border-radius:var(--radius-lg);
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-strip::before{
  content:'';
  position:absolute;
  top:0;right:0;width:40%;height:100%;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:0.06;
}
.cta-strip h2{
  font-size:24px;
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
  position:relative;
  z-index:1;
}
.cta-strip p{
  color:rgba(255,255,255,0.75);
  font-size:15px;
  position:relative;
  z-index:1;
}
.cta-strip .btn{
  position:relative;
  z-index:1;
}
@media(max-width:640px){
  .cta-strip{padding:32px 24px;flex-direction:column;align-items:flex-start}
}

/* ── Section header ── */
.section-header{
  margin-bottom:44px;
  position:relative;
}
.section-header .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-light);
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-header h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  color:var(--text);
  margin-bottom:12px;
}
.section-header p{
  font-size:16px;
  color:var(--text-secondary);
  max-width:660px;
  line-height:1.7;
}
.section-header.with-line::before{
  content:'';
  display:block;
  width:36px;
  height:4px;
  background:var(--accent);
  border-radius:4px;
  margin-bottom:18px;
}
@media(max-width:640px){
  .section-header h2{font-size:26px}
}

/* ── Cards grid (mixed layout) ── */
.mixed-layout{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:36px;
  align-items:stretch;
}
.intro-card{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  display:flex;
  flex-direction:column;
  gap:20px;
  position:relative;
  overflow:hidden;
}
.intro-card::after{
  content:'';
  position:absolute;
  bottom:-40px;right:-40px;
  width:140px;height:140px;
  background:var(--primary-light);
  border-radius:50%;
  opacity:0.5;
}
.intro-card img{
  border-radius:var(--radius-md);
  width:100%;
  height:180px;
  object-fit:cover;
}
.intro-card h3{
  font-size:22px;
  font-weight:600;
  color:var(--text);
  line-height:1.4;
}
.intro-card p{
  font-size:15px;
  color:var(--text-secondary);
  line-height:1.8;
}
.intro-card ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.intro-card ul li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text);
}
.intro-card ul li i{
  color:var(--primary);
  font-size:14px;
  margin-top:4px;
}
.info-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.info-list-item{
  background:var(--card);
  border-radius:var(--radius-md);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  display:flex;
  align-items:flex-start;
  gap:16px;
  transition:var(--transition);
}
.info-list-item:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:rgba(61,126,185,0.2);
}
.info-list-icon{
  width:44px;height:44px;
  background:var(--primary-light);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:17px;
  flex-shrink:0;
}
.info-list-content h4{
  font-size:16px;
  font-weight:600;
  margin-bottom:4px;
  color:var(--text);
}
.info-list-content p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
}
.info-list-link{
  margin-left:auto;
  color:var(--text-light);
  font-size:18px;
  align-self:center;
  transition:var(--transition);
}
.info-list-item:hover .info-list-link{
  color:var(--primary);
  transform:translateX(4px);
}
@media(max-width:1024px){
  .mixed-layout{grid-template-columns:1fr}
}
@media(max-width:640px){
  .intro-card{padding:24px 18px}
  .info-list-item{padding:18px 16px;flex-wrap:wrap}
  .info-list-link{display:none}
}

/* ── Data blocks ── */
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin:48px 0;
}
.data-block{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  text-align:center;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  position:relative;
  transition:var(--transition);
}
.data-block:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.data-block .number{
  font-size:32px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  margin-bottom:8px;
}
.data-block .label{
  font-size:14px;
  color:var(--text-secondary);
  font-weight:500;
}
@media(max-width:1024px){
  .data-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .data-grid{grid-template-columns:1fr;gap:14px}
  .data-block{padding:22px 16px}
  .data-block .number{font-size:26px}
}

/* ── Process steps ── */
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:40px;
  position:relative;
}
.process-step{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:30px 24px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  position:relative;
  text-align:center;
  transition:var(--transition);
}
.process-step:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.process-step .step-num{
  width:40px;height:40px;
  background:var(--primary);
  color:#fff;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  font-weight:700;
  margin:0 auto 14px;
  box-shadow:0 4px 12px rgba(61,126,185,0.25);
}
.process-step h4{
  font-size:16px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--text);
}
.process-step p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
}
.process-step .step-icon{
  font-size:22px;
  color:var(--primary);
  margin-bottom:10px;
}
@media(max-width:1024px){
  .process-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .process-grid{grid-template-columns:1fr}
}

/* ── FAQ ── */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-top:36px;
}
.faq-item{
  background:var(--card);
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(61,126,185,0.25);
  box-shadow:var(--shadow-md);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:none;
  border:none;
  cursor:pointer;
  font-family:var(--font-main);
  font-size:16px;
  font-weight:600;
  color:var(--text);
  text-align:left;
  transition:var(--transition);
}
.faq-question:hover{background:var(--card-warm)}
.faq-question:focus-visible{
  outline:3px solid rgba(61,126,185,0.4);
  outline-offset:-3px;
}
.faq-question .faq-icon{
  width:26px;height:26px;
  flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);
  color:var(--primary);
  border-radius:8px;
  font-size:12px;
  transition:var(--transition);
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease;
}
.faq-answer-inner{
  padding:0 24px 20px;
  font-size:15px;
  color:var(--text-secondary);
  line-height:1.8;
  border-top:1px solid var(--border);
  padding-top:16px;
  margin:0 24px 20px;
}

/* ── Contact form section ── */
.contact-card{
  background:var(--card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  border:1px solid var(--border);
  padding:48px;
  margin-top:40px;
}
.contact-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:48px;
}
.contact-form .form-group{
  margin-bottom:18px;
}
.contact-form label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
}
.contact-form input,
.contact-form select,
.contact-form textarea{
  width:100%;
  padding:12px 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--card-warm);
  font-family:var(--font-main);
  font-size:15px;
  color:var(--text);
  transition:var(--transition);
  line-height:1.5;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus{
  outline:none;
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(61,126,185,0.12);
}
.contact-form textarea{
  min-height:110px;
  resize:vertical;
}
.contact-form .privacy-note{
  font-size:13px;
  color:var(--text-light);
  margin-top:10px;
  display:flex;
  align-items:center;
  gap:6px;
}
.contact-info-side{
  display:flex;
  flex-direction:column;
  gap:20px;
  background:var(--bg);
  border-radius:var(--radius-md);
  padding:28px;
}
.contact-info-item{
  display:flex;
  align-items:flex-start;
  gap:14px;
}
.contact-info-item .icon{
  width:40px;height:40px;
  background:var(--primary-light);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:15px;
  flex-shrink:0;
}
.contact-info-item .text h4{
  font-size:14px;
  font-weight:600;
  margin-bottom:2px;
}
.contact-info-item .text p{
  font-size:14px;
  color:var(--text-secondary);
}
@media(max-width:1024px){
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .contact-card{padding:28px 24px}
}
@media(max-width:640px){
  .contact-card{padding:24px 18px}
}

/* ── Footer ── */
.footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,0.8);
  padding:64px 24px 0;
  margin-top:40px;
}
.footer-inner{
  max-width:1200px;
  margin:0 auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-logo .logo-icon{
  background:rgba(255,255,255,0.15);
  color:#fff;
}
.footer-about{
  font-size:14px;
  line-height:1.8;
  margin-bottom:16px;
  color:rgba(255,255,255,0.65);
}
.footer h3{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer ul li a{
  color:rgba(255,255,255,0.65);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:var(--transition);
}
.footer ul li a:hover{
  color:#fff;
  transform:translateX(4px);
}
.footer ul li a i{
  font-size:10px;
  color:rgba(255,255,255,0.35);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,0.65);
}
.footer-contact li i{
  width:32px;
  color:rgba(255,255,255,0.4);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:20px 0;
  text-align:center;
  font-size:14px;
  color:rgba(255,255,255,0.45);
}
.footer-bottom p{
  margin:0;
}
@media(max-width:1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media(max-width:640px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer{padding:48px 18px 0}
}

/* ── Utility ── */
.text-center{text-align:center}
.mt-20{margin-top:20px}
.mt-40{margin-top:40px}
.mt-60{margin-top:60px}
.mb-20{margin-bottom:20px}
.mb-40{margin-bottom:40px}
.grid-2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media(max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  :root{--space-section:56px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .hero-inner{padding:28px 18px}
  .section-header h2{font-size:23px}
}

/* scrollbar */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}

::selection{
  background:var(--primary);
  color:#fff;
}