/* roulang page: index */
:root {
  --primary: #1e5eff;
  --primary-dark: #1245cf;
  --primary-light: #eaf0ff;
  --accent: #06b8d9;
  --bg: #f4f7fc;
  --bg-white: #ffffff;
  --text: #182637;
  --text-light: #5c6f87;
  --border: #dfe7f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(28, 52, 98, 0.06);
  --shadow-md: 0 8px 30px rgba(28, 52, 98, 0.09);
  --shadow-lg: 0 16px 50px rgba(28, 52, 98, 0.13);
  --transition: all 0.3s ease;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
section { padding: 84px 0; }

/* Header */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(28, 52, 98, 0.04);
}
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  gap: 20px;
}
.logo {
  font-weight: 800;
  font-size: 19px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.3;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 19px;
  flex-shrink: 0;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-link {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  padding: 8px 18px;
  border-radius: 8px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link i { font-size: 14px; color: var(--primary); }
.nav-link:hover { background: var(--primary); color: #fff; }
.nav-link:hover i { color: #fff; }

.header-cats {
  border-top: 1px solid var(--border);
  padding: 10px 24px;
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  background: rgba(255, 255, 255, 0.8);
}
.cat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  padding: 6px 12px;
  border-radius: 8px;
  transition: var(--transition);
}
.cat-item i { font-size: 15px; color: var(--primary); }
.cat-item:hover { background: var(--primary-light); color: var(--primary); }

/* Hero */
.hero {
  position: relative;
  padding: 100px 0 96px;
  background: linear-gradient(120deg, #eef4ff 0%, #f8fbff 55%, #eaf5fa 100%);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  opacity: 0.12;
}
.hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 94, 255, 0.12) 0%, transparent 70%);
  top: -120px;
  right: -80px;
}
.hero::after {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 184, 217, 0.1) 0%, transparent 70%);
  bottom: -60px;
  left: -40px;
}
.hero .container { position: relative; z-index: 2; }

.hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid rgba(30, 94, 255, 0.2);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}
.hero-badge i { font-size: 14px; }
.hero h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
  color: var(--text);
}
.hero h1 .highlight {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 540px;
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(30, 94, 255, 0.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(30, 94, 255, 0.3);
}
.btn-outline {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.hero-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 8px;
}
.hero-benefit {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
}
.hero-benefit i { color: var(--primary); font-size: 15px; }

.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 36px 32px;
  position: relative;
  border: 1px solid rgba(255,255,255,0.8);
}
.hero-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 32px;
  right: 32px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 0 0 4px 4px;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.card-head h3 { font-size: 18px; font-weight: 700; }
.card-head .badge-lv {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
}
.card-body .field {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 12px;
}
.field-label {
  font-size: 12px;
  color: var(--text-light);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}
.field-value { font-size: 15px; font-weight: 600; color: var(--text); }
.eligibility {
  background: linear-gradient(135deg, rgba(30,94,255,0.05), rgba(6,184,217,0.05));
  border: 1px solid rgba(30,94,255,0.12);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  gap: 12px;
  margin: 18px 0;
}
.eligibility i { color: var(--primary); font-size: 20px; margin-top: 2px; }
.eligibility p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.card-footer-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.stat-mini { text-align: center; }
.stat-mini .num { font-size: 22px; font-weight: 800; color: var(--text); }
.stat-mini .lbl { font-size: 12px; color: var(--text-light); }

/* Section headers */
.section-head {
  margin-bottom: 44px;
  max-width: 700px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.3px;
  color: var(--text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.75;
}

/* Pain section */
.pain-section { background: #fff; }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pain-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid transparent;
  transition: var(--transition);
  position: relative;
}
.pain-card:hover {
  border-color: rgba(30, 94, 255, 0.2);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.pain-icon {
  width: 52px;
  height: 52px;
  background: #fff;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}
.pain-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.pain-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* Data band */
.data-band {
  background: linear-gradient(135deg, #12233f 0%, #1b3a6d 50%, #0f2a55 100%);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.data-band::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
}
.data-item { text-align: center; }
.data-item .num {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -1px;
}
.data-item .num::after { content: ''; display: block; width: 40px; height: 2px; background: rgba(255,255,255,0.4); margin: 10px auto; }
.data-item .lbl { font-size: 14px; color: rgba(255,255,255,0.7); font-weight: 500; }

/* Steps */
.steps-section { background: var(--bg); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.step-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-number {
  font-size: 44px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--primary);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  font-style: italic;
}
.step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.step-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.step-points { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); }
.step-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-light);
  padding: 4px 0;
}
.step-points li i { color: var(--primary); font-size: 13px; }

/* Categories */
.cats-section { background: #fff; }
.cats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.cat-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.cat-card:hover {
  border-color: transparent;
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.cat-card .cat-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  transition: var(--transition);
}
.cat-card:hover .cat-icon {
  background: var(--primary);
  color: #fff;
}
.cat-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.cat-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* Testimonials */
.testi-section {
  background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat fixed;
  position: relative;
}
.testi-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.93);
}
.testi-section .container { position: relative; z-index: 2; }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.testi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.testi-stars { color: #fbbf24; font-size: 14px; margin-bottom: 12px; }
.testi-stars i { margin-right: 2px; }
.testi-text { font-size: 14px; color: var(--text); line-height: 1.8; margin-bottom: 18px; }
.testi-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.testi-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
}
.testi-user .name { font-size: 14px; font-weight: 700; }
.testi-user .role { font-size: 12px; color: var(--text-light); }

/* Progress task */
.task-section { background: var(--bg); }
.task-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.task-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 38px 34px;
}
.task-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.task-head h3 { font-size: 20px; font-weight: 800; }
.task-progress {
  height: 8px;
  background: var(--border);
  border-radius: 50px;
  overflow: hidden;
  margin-bottom: 24px;
}
.task-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 50px;
  width: 65%;
  transition: width 1s ease;
}
.task-list { display: grid; gap: 12px; }
.task-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg);
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
}
.task-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}
.task-check.done { background: #10b981; color: #fff; }
.task-check.active { background: var(--primary-light); color: var(--primary); border: 2px solid var(--primary); }
.task-check.todo { background: #fff; border: 2px solid var(--border); color: var(--border); }
.task-info { flex: 1; }
.task-info .t-title { font-size: 14px; font-weight: 600; }
.task-info .t-desc { font-size: 12px; color: var(--text-light); }
.task-reward { text-align: right; color: var(--primary); font-size: 13px; font-weight: 600; }

.task-side .point-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.point-card .pc-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 12px;
}
.point-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.point-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* News */
.news-section { background: #fff; }
.news-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
}
.news-list { display: grid; gap: 16px; }
.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}
.news-item:hover {
  background: #fff;
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
.news-thumb {
  width: 84px;
  height: 60px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--primary-light);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-content { flex: 1; }
.news-content h3 { font-size: 15px; font-weight: 600; line-height: 1.5; margin-bottom: 4px; }
.news-content .news-meta {
  font-size: 12px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 10px;
}
.news-meta i { font-size: 12px; }
.news-tag {
  font-size: 11px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 600;
}

.news-side .side-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.side-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card h3 i { color: var(--primary); font-size: 14px; }
.side-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid rgba(223,231,240,0.7);
  cursor: pointer;
  transition: var(--transition);
}
.side-list li:last-child { border-bottom: none; }
.side-list li:hover { color: var(--primary); padding-left: 4px; }
.side-list li .side-index {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  padding: 1px 7px;
  flex-shrink: 0;
}

/* FAQ */
.faq-section { background: var(--bg); }
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(30, 94, 255, 0.2); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  gap: 16px;
}
.faq-q i { color: var(--primary); font-size: 16px; transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 20px; }
.faq-a p { font-size: 14px; color: var(--text-light); line-height: 1.8; padding-top: 4px; }

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0d4bb5 100%);
  position: relative;
  overflow: hidden;
  padding: 90px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  top: -100px;
  right: -60px;
}
.cta-section::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  bottom: -60px;
  left: -30px;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.cta-inner p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.btn-white {
  background: #fff;
  color: var(--primary);
  padding: 15px 36px;
  font-size: 16px;
  border-radius: 14px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}
.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.cta-note span { display: flex; align-items: center; gap: 6px; }
.cta-note i { font-size: 13px; }

/* Footer */
.site-footer {
  background: #0d1a2f;
  padding: 60px 0 0;
  color: rgba(255,255,255,0.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: center;
}
.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 16px;
}
.footer-brand span {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 340px;
}
.footer-col h3 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col ul li {
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  cursor: pointer;
}
.footer-col ul li:hover { color: #fff; padding-left: 6px; }
.footer-col ul li i { margin-right: 6px; font-size: 12px; color: rgba(255,255,255,0.4); }
.footer-bottom {
  padding: 24px 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom .legal { display: flex; gap: 20px; }
.footer-bottom .legal a:hover { color: #fff; }

/* Back to top */
.to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(30,94,255,0.3);
  cursor: pointer;
  z-index: 99;
  border: none;
  font-size: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* Responsive */
@media (max-width: 1024px) {
  .hero-layout { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 34px; }
  .pain-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .cats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .testi-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .task-layout { grid-template-columns: 1fr; gap: 32px; }
  .news-layout { grid-template-columns: 1fr; gap: 32px; }
  .steps-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .header-main { flex-direction: column; padding: 14px 16px; gap: 12px; }
  .header-cats { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding: 8px 16px; gap: 12px; }
  .cat-item { flex-shrink: 0; white-space: nowrap; }
  .hero { padding: 64px 0; }
  .hero h1 { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .pain-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .cats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .testi-grid { grid-template-columns: 1fr; gap: 16px; }
  .data-grid { grid-template-columns: 1fr 1fr; }
  .data-item .num { font-size: 30px; }
  .section-head h2 { font-size: 26px; }
  .news-item { flex-direction: column; align-items: flex-start; }
  .news-thumb { width: 100%; height: 140px; }
  .task-panel { padding: 26px 20px; }
  .faq-q { padding: 16px 18px; font-size: 14px; }
  .faq-a { padding: 0 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 24px; }
  .hero-badge { font-size: 12px; }
  .hero-benefits { flex-direction: column; gap: 10px; }
  .cats-grid { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: 1fr; }
  .cta-inner h2 { font-size: 25px; }
  .cta-note { flex-direction: column; align-items: center; }
  .news-thumb { height: 110px; }
  .task-item { flex-wrap: wrap; gap: 10px; }
  .task-reward { text-align: left; }
}

/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #2F6FED;
            --primary-dark: #1E5AD9;
            --primary-light: #E8F0FE;
            --secondary: #19B8A5;
            --secondary-light: #E0F7F4;
            --bg: #F6F9FE;
            --white: #FFFFFF;
            --text: #172B4D;
            --text-secondary: #5C6F87;
            --text-muted: #8D9CAD;
            --border: #E3EAF3;
            --warning: #EF8354;
            --warning-bg: #FEF0EA;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --shadow-sm: 0 2px 6px rgba(30, 60, 110, .06);
            --shadow: 0 2px 6px rgba(30, 60, 110, .06), 0 10px 24px rgba(30, 60, 110, .08);
            --shadow-hover: 0 4px 8px rgba(30, 60, 110, .08), 0 16px 32px rgba(30, 60, 110, .12);
            --container: 1200px;
            --spacing-section: 96px;
            --transition: all .2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        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;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.3;
            padding: 12px 28px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            text-align: center;
            min-height: 44px;
        }

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

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

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

        .btn-primary:active {
            transform: translateY(0px);
        }

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

        .btn-outline:hover {
            background: var(--primary-light);
            border-color: rgba(47, 111, 237, .3);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

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

        /* ============ 状态徽章 ============ */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            line-height: 1.4;
            background: var(--primary-light);
            color: var(--primary);
            border: 1px solid rgba(47, 111, 237, .15);
        }

        .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .badge-dot.green {
            background: #34C759;
            box-shadow: 0 0 0 3px rgba(52, 199, 89, .2);
        }

        .badge-dot.orange {
            background: var(--warning);
            box-shadow: 0 0 0 3px rgba(239, 131, 84, .2);
        }

        .badge-dot.red {
            background: #FF3B30;
            box-shadow: 0 0 0 3px rgba(255, 59, 48, .2);
        }

        .tag {
            display: inline-block;
            border-radius: var(--radius-badge);
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 500;
            background: var(--bg);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .tag-primary {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(47, 111, 237, .2);
        }

        .tag-hot {
            background: var(--warning-bg);
            color: var(--warning);
            border-color: rgba(239, 131, 84, .25);
        }

        .tag-new {
            background: var(--secondary-light);
            color: var(--secondary);
            border-color: rgba(25, 184, 165, .25);
        }

        /* ============ 头部 ============ */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(30, 60, 110, .04);
        }

        .brand-bar {
            border-bottom: 1px solid var(--border);
        }

        .brand-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            max-width: var(--container);
            margin: 0 auto;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 14px;
            min-width: 0;
        }

        .brand-logo {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            white-space: nowrap;
        }

        .brand-name span {
            color: var(--primary);
        }

        .brand-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
            white-space: nowrap;
        }

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

        .header-status {
            display: flex;
            gap: 8px;
        }

        /* 图标网格导航 */
        .icon-nav-wrap {
            max-width: var(--container);
            margin: 0 auto;
            padding: 12px 24px;
        }

        .icon-nav {
            display: grid;
            grid-template-columns: repeat(8, 1fr);
            gap: 8px;
        }

        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 4px;
            border-radius: 12px;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
            min-height: 64px;
        }

        .nav-item svg {
            width: 26px;
            height: 26px;
            transition: var(--transition);
        }

        .nav-item:hover {
            color: var(--primary);
            border-color: rgba(47, 111, 237, .2);
            background: var(--primary-light);
            transform: translateY(-3px);
        }

        .nav-item:active {
            transform: translateY(-1px) scale(.96);
        }

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

        .nav-item.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(47, 111, 237, .25);
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #EDF3FE 0%, #F6F9FE 60%, #F0FAF8 100%);
            padding: 72px 0 96px;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: .12;
            pointer-events: none;
        }

        .hero::after {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(25, 184, 165, .06);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 64px;
            align-items: center;
        }

        .hero-content {
            max-width: 580px;
        }

        .hero-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -.02em;
            margin-bottom: 20px;
        }

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

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 460px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-metrics {
            display: flex;
            gap: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .hero-metric-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-metric-item .num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            font-family: "Inter", "PingFang SC", sans-serif;
        }

        .hero-metric-item .label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Hero 右侧状态卡 */
        .hero-panel {
            position: relative;
        }

        .status-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-hover);
            padding: 32px;
            border: 1px solid var(--border);
            position: relative;
        }

        .status-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .status-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            gap: 8px;
            flex-wrap: wrap;
        }

        .status-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }

        .status-card-main {
            text-align: center;
            padding: 32px 0 24px;
        }

        .status-icon-circle {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 8px 20px rgba(47, 111, 237, .25);
            margin-bottom: 16px;
        }

        .status-icon-circle svg {
            width: 28px;
            height: 28px;
        }

        .status-card-main h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .status-card-main p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .status-btn {
            padding: 10px 32px;
        }

        .status-card-footer {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 20px;
        }

        .status-footer-item {
            text-align: center;
        }

        .status-footer-item .num {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            font-family: "Inter", "PingFang SC", sans-serif;
        }

        .status-footer-item .label {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
            margin-top: 2px;
        }

        /* ============ Section 通用 ============ */
        .section {
            padding: var(--spacing-section) 0;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-badge);
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -.01em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 48px;
        }

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

        .section-header.center {
            text-align: center;
        }

        .section-header.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 痛点模块 ============ */
        .pain-section {
            position: relative;
            overflow: hidden;
        }

        .pain-section::before {
            content: "";
            position: absolute;
            right: -50px;
            top: 50%;
            transform: translateY(-50%);
            width: 300px;
            height: 300px;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: .07;
            border-radius: 50%;
            pointer-events: none;
        }

        .pain-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .pain-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .pain-desc {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 32px;
            max-width: 400px;
        }

        .pain-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .pain-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .pain-card:hover {
            box-shadow: var(--shadow);
            border-color: rgba(47, 111, 237, .2);
            transform: translateY(-2px);
        }

        .pain-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--warning-bg);
            color: var(--warning);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            font-weight: 700;
        }

        .pain-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

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

        .pain-compare {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            overflow: hidden;
            position: relative;
            z-index: 2;
        }

        .compare-header {
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            font-weight: 600;
            text-align: center;
        }

        .compare-header>div {
            padding: 14px;
        }

        .compare-header .old-way {
            color: var(--text-muted);
            border-right: 1px solid var(--border);
        }

        .compare-header .new-way {
            color: var(--secondary);
        }

        .compare-body {
            padding: 24px;
        }

        .compare-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            padding: 10px 0;
            border-bottom: 1px solid var(--bg);
            font-size: 14px;
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-row .old-way {
            color: var(--text-muted);
            padding-right: 16px;
            border-right: 1px solid var(--border);
        }

        .compare-row .new-way {
            color: var(--text);
            font-weight: 500;
            padding-left: 16px;
        }

        .compare-foot {
            padding: 20px 24px;
            background: var(--secondary-light);
            border-top: 1px solid rgba(25, 184, 165, .2);
            font-size: 14px;
            color: var(--secondary);
            font-weight: 500;
            text-align: center;
        }

        /* ============ 解决方案 ============ */
        .solution-section {
            background: var(--white);
        }

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

        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: var(--transition);
            position: relative;
        }

        .feature-card:hover {
            box-shadow: var(--shadow);
            border-color: rgba(47, 111, 237, .2);
            transform: translateY(-2px);
        }

        .feature-card.feature-main {
            background: linear-gradient(135deg, var(--primary-light), var(--white));
            border-color: rgba(47, 111, 237, .2);
            grid-row: span 2;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .feature-card.feature-main .feature-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(47, 111, 237, .2);
        }

        .feature-badge {
            position: absolute;
            top: -10px;
            right: 24px;
            background: var(--warning);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            box-shadow: var(--shadow-sm);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        .feature-tags {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        /* 宽卡 状态面板 */
        .status-panel {
            grid-column: span 2;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .status-panel::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--warning));
        }

        .status-panel-info {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .status-panel-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }

        .status-panel-badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .status-progress {
            margin-top: 4px;
        }

        .status-progress-top {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .progress-bar {
            height: 8px;
            background: var(--bg);
            border-radius: 99px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            width: 76%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .status-panel-action {
            display: flex;
            align-items: center;
            padding-left: 24px;
            border-left: 1px solid var(--border);
        }

        /* ============ 成果 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

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

        .stat-card:hover .stat-num {
            transform: scale(1.04);
            color: var(--primary-dark);
        }

        .stat-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-family: "Inter", "PingFang SC", sans-serif;
            transition: var(--transition);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        .stats-foot {
            margin-top: 32px;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 24px;
            border-top: 1px solid var(--border);
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 客户证言 ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 24px;
        }

        .testimonial-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(47, 111, 237, .2);
        }

        .testimonial-card.featured {
            grid-row: span 2;
            background: linear-gradient(135deg, var(--bg), var(--white));
            border-color: rgba(47, 111, 237, .15);
            padding: 36px;
        }

        .testimonial-stars {
            color: #FFB100;
            font-size: 16px;
            letter-spacing: 2px;
        }

        .testimonial-text {
            font-size: 15px;
            color: var(--text);
            line-height: 1.8;
            flex: 1;
        }

        .testimonial-featured .testimonial-text {
            font-size: 18px;
            line-height: 1.9;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .testimonial-user .name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .testimonial-user .role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ============ 最新资讯 ============ */
        .latest-section {
            background: var(--white);
        }

        .latest-layout {
            display: grid;
            grid-template-columns: 1.5fr .8fr;
            gap: 48px;
            align-items: start;
        }

        .post-list {
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--white);
        }

        .post-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .post-item:hover {
            background: var(--bg);
        }

        .post-item:hover .post-title {
            color: var(--primary);
        }

        .post-rank {
            font-size: 14px;
            font-weight: 800;
            color: var(--text-muted);
            width: 32px;
            text-align: center;
            flex-shrink: 0;
        }

        .post-item:nth-child(1) .post-rank {
            color: var(--warning);
        }

        .post-item:nth-child(2) .post-rank {
            color: var(--warning);
        }

        .post-item:nth-child(3) .post-rank {
            color: var(--primary);
        }

        .post-main {
            flex: 1;
            min-width: 0;
        }

        .post-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            transition: var(--transition);
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .post-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .post-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .post-action {
            flex-shrink: 0;
        }

        .sidebar-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card:last-child {
            margin-bottom: 0;
        }

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-links {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-links:last-of-type {
            border-bottom: none;
        }

        .sidebar-links a {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .sidebar-links a:hover {
            color: var(--primary);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: rgba(47, 111, 237, .2);
        }

        .faq-item.open {
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            background: var(--white);
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            min-height: 48px;
        }

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

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform .25s ease;
            background: var(--white);
        }

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

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: var(--bg);
        }

        .faq-item.open .faq-answer {
            padding: 20px 24px;
            max-height: 400px;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 40px 0 80px;
        }

        .cta-card {
            background: linear-gradient(120deg, #E8F0FE 0%, #E0F7F4 100%);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: .08;
            pointer-events: none;
        }

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

        .cta-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-desc {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn {
            padding: 16px 48px;
            font-size: 16px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-note {
            border-top: 1px solid var(--border);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-note .copy {
            margin-bottom: 8px;
        }

        .footer-note .copyright {
            color: var(--text-muted);
        }

        .footer-note a {
            color: var(--text-muted);
            text-decoration: underline;
        }

        .footer-note a:hover {
            color: var(--primary);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-content {
                max-width: 100%;
            }

            .hero-panel {
                max-width: 500px;
                margin: 0 auto;
                width: 100%;
            }

            .icon-nav {
                grid-template-columns: repeat(4, 1fr);
            }

            .pain-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

            .feature-card.feature-main {
                grid-row: auto;
            }

            .status-panel {
                grid-column: auto;
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .status-panel-action {
                border-left: none;
                border-top: 1px solid var(--border);
                padding-left: 0;
                padding-top: 20px;
                justify-content: center;
            }

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

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

            .testimonial-card.featured {
                grid-column: span 2;
            }

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

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

        @media (max-width: 767px) {
            :root {
                --spacing-section: 56px;
            }

            .brand-bar-inner {
                padding: 12px 16px;
            }

            .brand-name {
                font-size: 15px;
            }

            .brand-meta {
                display: none;
            }

            .header-status {
                display: none;
            }

            .icon-nav-wrap {
                padding: 10px 16px;
            }

            .icon-nav {
                display: flex;
                overflow-x: auto;
                gap: 8px;
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: thin;
                scrollbar-color: var(--primary) transparent;
            }

            .icon-nav::after {
                content: "";
                display: block;
                min-width: 4px;
                height: 1px;
            }

            .nav-item {
                min-width: 72px;
                flex-shrink: 0;
                min-height: 60px;
            }

            .hero {
                padding: 40px 0 56px;
            }

            .hero .container {
                gap: 32px;
            }

            .hero-title {
                font-size: 28px;
            }

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

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

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

            .hero-metrics {
                flex-wrap: wrap;
                gap: 20px;
            }

            .status-card {
                padding: 24px;
            }

            .status-card-footer {
                grid-template-columns: repeat(3, 1fr);
            }

            .section {
                padding: var(--spacing-section) 0;
            }

            .section-title {
                font-size: 26px;
            }

            .section-desc {
                font-size: 15px;
                margin-bottom: 32px;
            }

            .pain-grid {
                gap: 32px;
            }

            .pain-title {
                font-size: 22px;
            }

            .compare-body {
                padding: 16px;
            }

            .compare-row {
                font-size: 13px;
            }

            .feature-card {
                padding: 20px;
            }

            .feature-card.feature-main {
                padding: 24px;
            }

            .status-panel {
                padding: 24px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-card {
                padding: 20px 12px;
            }

            .stat-num {
                font-size: 32px;
            }

            .stat-label {
                font-size: 13px;
            }

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

            .testimonial-card.featured {
                grid-column: auto;
            }

            .post-item {
                flex-direction: row;
                flex-wrap: wrap;
                padding: 16px;
            }

            .post-title {
                white-space: normal;
            }

            .post-action {
                width: 100%;
            }

            .cta-card {
                padding: 40px 24px;
                border-radius: 16px;
            }

            .cta-title {
                font-size: 24px;
            }

            .cta-btn {
                width: 100%;
                padding: 14px 32px;
            }

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

            .faq-question {
                padding: 16px;
                font-size: 15px;
            }

            .faq-item.open .faq-answer {
                padding: 16px;
            }
        }

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

            .brand-logo {
                width: 36px;
                height: 36px;
                font-size: 16px;
                border-radius: 10px;
            }

            .brand-name {
                font-size: 14px;
            }

            .hero-title {
                font-size: 24px;
            }

            .hero-metrics {
                gap: 16px;
            }

            .hero-metric-item .num {
                font-size: 20px;
            }

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

            .stats-foot {
                font-size: 12px;
            }

            .post-rank {
                width: 24px;
            }

            .post-meta {
                gap: 8px;
            }
        }