/* roulang page: index */
:root {
  --primary-dark: #0B1A2B;
  --primary-deep: #132238;
  --primary-border: #233149;
  --accent: #00E5A0;
  --accent-gold: #F7B733;
  --bg-light: #F5F7FA;
  --card-bg: #FFFFFF;
  --text-main: #22262B;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --radius-lg: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 20px rgba(11,26,43,0.08);
  --shadow-hover: 0 8px 30px rgba(0,229,160,0.15);
  --nav-width: 220px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.main-content { margin-left: var(--nav-width); min-height: 100vh; background: var(--bg-light); }

/* ========== 左侧竖向导航 ========== */
.side-nav {
  position: fixed;
  top: 0; left: 0;
  width: var(--nav-width);
  height: 100vh;
  background: var(--primary-dark);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform .3s ease;
}
.side-brand {
  height: 80px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.logo-text { font-size: 14px; font-weight: 600; color: #fff; line-height: 1.2; letter-spacing: .5px; }
.side-links {
  flex: 1;
  padding: 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.72);
  transition: background .2s, color .2s;
}
.nav-link i { width: 20px; text-align: center; font-size: 15px; }
.nav-link:hover { background: rgba(255,255,255,.05); color: var(--accent); }
.nav-link.active { background: rgba(0,229,160,.1); color: var(--accent); font-weight: 600; }
.side-status {
  padding: 18px 20px;
  border-top: 1px solid rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: rgba(255,255,255,.5);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0,229,160,.8);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }

/* ========== 移动端顶部导航 ========== */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--primary-dark);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 120;
}
.mobile-brand { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; color: #fff; }
.mobile-brand .logo-mark { width: 32px; height: 32px; font-size: 15px; }
.menu-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; }
.menu-toggle span { width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s, opacity .3s; }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 95;
  opacity: 0;
  transition: opacity .3s;
}
.nav-overlay.show { opacity: 1; display: block; }

/* ========== Hero 首屏 ========== */
.hero-section {
  position: relative;
  min-height: 85vh;
  background: linear-gradient(135deg, #0B1A2B 0%, #132238 60%, #0E2238 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  opacity: .14;
}
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
}
.hero-glow {
  position: absolute;
  top: -120px; right: -80px;
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(0,229,160,.22), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 32px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(0,229,160,.12);
  border: 1px solid rgba(0,229,160,.35);
  border-radius: 999px;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,.68);
  letter-spacing: 3px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .25s, box-shadow .25s, background .25s;
  border: 1.5px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  color: #fff;
  box-shadow: 0 4px 22px rgba(0,229,160,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,229,160,.5); }
.btn-primary:focus-visible { outline: 3px solid rgba(255,255,255,.6); outline-offset: 2px; }
.btn-ghost { background: transparent; border-color: rgba(0,229,160,.6); color: var(--accent); }
.btn-ghost:hover { background: rgba(0,229,160,.1); transform: translateY(-2px); }
.hero-stats { display: flex; gap: 32px; }
.hero-stat { text-align: left; }
.hero-stat strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.hero-stat span { font-size: 13px; color: rgba(255,255,255,.5); }
.hero-visual { position: relative; }
.hero-image-wrap {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(0,229,160,.3);
  padding-bottom: 72%;
  background: var(--primary-deep);
}
.hero-image-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-float-card {
  position: absolute;
  bottom: 18px; left: 18px;
  background: rgba(11,26,43,.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0,229,160,.35);
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.hero-float-card i { font-size: 20px; color: var(--accent); }
.hero-float-card span { font-size: 12px; color: rgba(255,255,255,.6); }
.hero-float-card strong { font-size: 14px; color: var(--accent); }

/* ========== 通用板块样式 ========== */
.section { padding: 96px 0; }
.section-header { margin-bottom: 56px; max-width: 720px; }
.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
  margin-bottom: 8px;
}
.section-header h2 em {
  font-style: normal;
  color: var(--accent);
}
.section-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }

/* ========== 服务区（两列交错） ========== */
.service-section { background: var(--bg-light); padding: 96px 0; }
.service-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.service-visual { position: relative; }
.service-image-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  padding-bottom: 76%;
  background: var(--primary-deep);
}
.service-image-wrap img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.service-float-badge {
  position: absolute;
  bottom: 20px; right: 20px;
  background: rgba(11,26,43,.92);
  border: 1px solid rgba(247,183,51,.4);
  border-radius: 14px;
  padding: 14px 20px;
  text-align: center;
  color: #fff;
  backdrop-filter: blur(8px);
}
.service-float-badge span { display: block; font-size: 12px; color: rgba(255,255,255,.6); margin-bottom: 4px; }
.service-float-badge strong { font-size: 18px; color: var(--accent-gold); font-weight: 700; }
.service-points { display: flex; flex-direction: column; gap: 24px; margin-bottom: 36px; }
.service-points li { display: flex; gap: 16px; }
.service-points li > i {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(0,229,160,.12);
  color: var(--accent);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.service-points h3 { font-size: 17px; font-weight: 600; color: var(--text-main); margin-bottom: 4px; }
.service-points p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  position: relative;
  padding-bottom: 4px;
}
.text-link::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .3s;
}
.text-link:hover::after { width: 100%; }
.text-link i { transition: transform .3s; }
.text-link:hover i { transform: translateX(4px); }

/* ========== 数据区 ========== */
.data-section { background: #fff; padding: 96px 0; }
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.data-card {
  background: var(--bg-light);
  border-radius: 20px;
  padding: 36px 28px;
  text-align: center;
  border: 1px solid rgba(11,26,43,.05);
  transition: transform .3s, box-shadow .3s;
}
.data-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.data-number {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  margin-bottom: 8px;
}
.data-label { font-size: 13px; color: var(--text-secondary); }

/* ========== 案例区（横向滑动） ========== */
.cases-section { background: var(--bg-light); padding: 96px 0; overflow: hidden; }
.cases-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 16px 4px 24px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.cases-track::-webkit-scrollbar { height: 6px; }
.cases-track::-webkit-scrollbar-thumb { background: rgba(11,26,43,.18); border-radius: 4px; }
.case-card {
  flex: 0 0 320px;
  scroll-snap-align: start;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s, border-color .3s;
  border: 1px solid transparent;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(0,229,160,.4); }
.case-media { position: relative; padding-bottom: 58%; background: var(--primary-deep); }
.case-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.case-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(0,229,160,.9);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.case-body { padding: 24px; }
.case-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }
.case-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.case-link { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
.case-link:hover i { transform: translateX(4px); transition: transform .3s; }

/* ========== 解决方案（步骤流） ========== */
.solution-section {
  background: linear-gradient(135deg, #0B1A2B 0%, #132238 60%, #0E2238 100%);
  position: relative;
  padding: 96px 0;
}
.solution-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity: .08;
}
.solution-section .container { position: relative; z-index: 2; }
.solution-section .section-header h2,
.solution-section .section-desc { color: #fff; }
.solution-section .section-kicker { color: var(--accent-gold); }
.solution-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.solution-steps { display: flex; flex-direction: column; gap: 8px; }
.step-item {
  display: flex;
  gap: 20px;
  padding: 20px 24px;
  border-radius: 14px;
  background: rgba(255,255,255,.04);
  border-left: 3px solid rgba(0,229,160,.4);
  margin-bottom: 16px;
  transition: background .3s;
}
.step-item:hover { background: rgba(255,255,255,.08); }
.step-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  opacity: .65;
  line-height: 1;
  flex-shrink: 0;
}
.step-item h3 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.step-item p { font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.6; }
.solution-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 40px;
  color: #fff;
  backdrop-filter: blur(12px);
}
.solution-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.solution-card > p { font-size: 15px; color: rgba(255,255,255,.6); margin-bottom: 28px; }
.solution-card ul { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.solution-card ul li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.8); }
.solution-card ul li i { color: var(--accent); font-size: 15px; }

/* ========== 最新资讯（CMS） ========== */
.news-section { background: #fff; padding: 96px 0; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  display: grid;
  grid-template-columns: 100px 90px 1fr 2fr 28px;
  gap: 16px;
  align-items: center;
  background: var(--bg-light);
  border-radius: 14px;
  padding: 18px 24px;
  border-left: 3px solid transparent;
  transition: background .3s, border-color .3s, transform .3s;
  position: relative;
}
.news-item:hover { background: #fff; border-left-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-2px); }
.news-cat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  white-space: nowrap;
  width: fit-content;
}
.news-time { font-size: 14px; color: var(--text-light); white-space: nowrap; }
.news-title { font-size: 16px; font-weight: 600; color: var(--text-main); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-item:hover .news-title { color: var(--accent); }
.news-excerpt { font-size: 14px; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-arrow { color: var(--accent); font-size: 14px; justify-self: end; }
.news-empty {
  border: 2px dashed #d1d5db;
  border-radius: 16px;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-light);
}
.news-empty i { font-size: 32px; margin-bottom: 12px; display: block; }
.news-empty p { font-size: 15px; }

/* ========== FAQ ========== */
.faq-section { background: var(--bg-light); padding: 96px 0; }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-item {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid transparent;
  transition: background .3s, border-color .3s;
  cursor: pointer;
}
.faq-item.active { background: #F8F9FB; border-color: rgba(0,229,160,.3); }
.faq-question { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.faq-q {
  width: 22px; height: 22px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-gold));
  border-radius: 6px;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.faq-question h3 { font-size: 15px; font-weight: 600; color: var(--text-main); line-height: 1.5; }
.faq-answer {
  display: none;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 8px 0 0 34px;
}
.faq-item.active .faq-answer { display: block; animation: fadeIn .3s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }

/* ========== CTA 区 ========== */
.cta-section { background: #fff; padding: 80px 0 96px; }
.cta-card {
  background: linear-gradient(135deg, #0B1A2B 0%, #132238 60%, #1A2C44 100%);
  border-radius: 28px;
  text-align: center;
  padding: 72px 40px;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  opacity: .1;
}
.cta-card h2 {
  position: relative;
  z-index: 1;
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.cta-card p {
  position: relative;
  z-index: 1;
  font-size: 16px;
  color: rgba(255,255,255,.6);
  margin-bottom: 36px;
}
.cta-card .btn { position: relative; z-index: 1; }
.btn-lg { padding: 16px 48px; font-size: 17px; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  padding: 64px 0 0;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,160,.3), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 13px; color: rgba(255,255,255,.45); line-height: 1.8; max-width: 320px; }
.footer-links h4, .footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.5);
  margin-bottom: 10px;
  transition: color .2s;
}
.footer-links a:hover { color: var(--accent); }
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.footer-contact p i { color: var(--accent); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.35); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  :root { --nav-width: 180px; }
  .hero-title { font-size: 38px; }
  .hero-inner { gap: 36px; }
  .data-number { font-size: 30px; }
  .news-item { grid-template-columns: 80px 80px 1fr 28px; }
  .news-excerpt { display: none; }
}
@media (max-width: 768px) {
  .service-layout, .solution-layout { grid-template-columns: 1fr; gap: 48px; }
  .data-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-inner { padding: 60px 24px 80px; }
  .section { padding: 64px 0; }
  .service-section, .data-section, .cases-section, .solution-section, .news-section, .faq-section { padding: 64px 0; }
}
@media (max-width: 640px) {
  .side-nav {
    transform: translateX(-100%);
    width: 260px;
    box-shadow: 4px 0 30px rgba(0,0,0,.4);
  }
  .side-nav.open { transform: translateX(0); }
  .mobile-topbar { display: flex; }
  .main-content { margin-left: 0; padding-top: 64px; }
  .hero-section { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; padding: 48px 20px 64px; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; letter-spacing: 1px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-visual { display: none; }
  .container { padding: 0 20px; }
  .section-header h2 { font-size: 24px; }
  .section-header { margin-bottom: 40px; }
  .case-card { flex: 0 0 84%; }
  .news-item { grid-template-columns: 1fr 28px; padding: 16px; }
  .news-cat, .news-time, .news-excerpt { display: none; }
  .news-title { font-size: 15px; white-space: normal; line-height: 1.5; }
  .cta-card { padding: 48px 20px; }
  .cta-card h2 { font-size: 24px; }
  .footer-grid { padding-bottom: 32px; }
}
@media (max-width: 480px) {
  .data-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .data-card { padding: 24px 16px; }
  .data-number { font-size: 26px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --primary: #0B1A2B;
  --brand: #00E5A0;
  --gold: #F7B733;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #22262B;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --dark-card: #132238;
  --dark-text: #E5E7EB;
  --dark-border: #233149;
  --radius-lg: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow: 0 4px 20px rgba(11, 26, 43, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 229, 160, 0.15);
  --nav-w: 220px;
  --transition: all 0.3s ease;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.main-wrapper {
  display: flex;
  min-height: 100vh;
}
.side-nav {
  width: var(--nav-w);
  background: var(--primary);
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 0 18px;
  overflow-y: auto;
}
.side-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 26px 0 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.brand-logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--gold));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; color: var(--primary);
  flex-shrink: 0;
}
.brand-name {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.35;
}
.side-links {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  transition: var(--transition);
}
.nav-link i { width: 18px; text-align: center; font-size: 15px; color: rgba(255, 255, 255, 0.5); transition: var(--transition); }
.nav-link:hover { background: rgba(255, 255, 255, 0.05); color: var(--brand); }
.nav-link:hover i { color: var(--brand); }
.nav-link.active { background: rgba(0, 229, 160, 0.12); color: var(--brand); font-weight: 600; }
.nav-link.active i { color: var(--brand); }
.side-status {
  margin-top: auto;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
}
.side-status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 8px rgba(0, 229, 160, 0.7);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.content-area {
  margin-left: var(--nav-w);
  width: calc(100% - var(--nav-w));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header-mobile {
  display: none;
}

.main-content { flex: 1; padding: 48px 0 96px; }

.breadcrumb-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.breadcrumb-wrap a { color: var(--text-secondary); }
.breadcrumb-wrap a:hover { color: var(--brand); }
.breadcrumb-wrap .sep { color: var(--text-light); }
.breadcrumb-wrap .current { color: var(--text); font-weight: 500; }

.article-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 48px 56px;
  margin-bottom: 32px;
}
.article-header {
  border-bottom: 1px solid #ECEEF1;
  padding-bottom: 28px;
  margin-bottom: 32px;
}
.article-header h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  letter-spacing: 0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}
.article-meta .dot-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--brand); }
.meta-cat {
  display: inline-block;
  background: rgba(0, 229, 160, 0.12);
  color: #00a878;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: #333;
}
.article-body p { margin-bottom: 20px; }
.article-body h2 { font-size: 22px; font-weight: 600; margin: 36px 0 16px; color: var(--text); }
.article-body h3 { font-size: 20px; font-weight: 600; margin: 30px 0 14px; color: var(--text); padding-left: 12px; border-left: 4px solid var(--brand); }
.article-body img { border-radius: 12px; margin: 24px 0; }
.article-body blockquote {
  border-left: 4px solid var(--brand);
  background: #F8F9FB;
  padding: 20px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-body ul, .article-body ol { margin: 16px 0 24px 20px; }
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--brand); text-decoration: underline; }
.article-body a:hover { color: var(--gold); }

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #ECEEF1;
}
.article-footer a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}
.article-footer a:hover { color: var(--brand); }

.recommend-section {
  margin-top: 40px;
}
.recommend-section h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-left: 14px;
}
.recommend-section h3::before {
  content: '';
  position: absolute;
  left: 0; top: 4px;
  width: 4px; height: 20px;
  background: linear-gradient(180deg, var(--brand), var(--gold));
  border-radius: 2px;
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.recommend-card {
  background: #fff;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.recommend-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.recommend-card .rc-thumb { width: 100%; height: 150px; object-fit: cover; background: #E5E7EB; }
.recommend-card .rc-body { padding: 16px 18px; }
.recommend-card .rc-cat {
  font-size: 12px;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 6px;
  display: block;
}
.recommend-card .rc-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.recommend-card .rc-title:hover { color: var(--brand); }

.not-found-box {
  background: #fff;
  border: 2px dashed #D1D5DB;
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  box-shadow: var(--shadow);
}
.not-found-box i { font-size: 48px; color: var(--text-light); margin-bottom: 16px; }
.not-found-box h2 { font-size: 22px; color: var(--text); margin-bottom: 8px; }
.not-found-box p { color: var(--text-secondary); font-size: 14px; margin-bottom: 24px; }
.not-found-box a {
  display: inline-block;
  padding: 10px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--gold));
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}
.not-found-box a:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }

.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 0;
  width: 100%;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .footer-logo { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 360px; }
.footer-links h4, .footer-contact h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}
.footer-links h4::after, .footer-contact h4::after {
  content: '';
  display: block;
  width: 28px; height: 2px;
  background: linear-gradient(90deg, var(--brand), transparent);
  margin-top: 8px;
  border-radius: 2px;
}
.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-links a:hover { color: var(--brand); padding-left: 6px; }
.footer-contact p { display: flex; align-items: center; gap: 10px; font-size: 14px; padding: 6px 0; color: rgba(255, 255, 255, 0.6); }
.footer-contact p i { color: var(--brand); width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

/* 移动端导航 */
@media (max-width: 1024px) {
  :root { --nav-w: 180px; }
  .article-card { padding: 36px 32px; }
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  :root { --nav-w: 0px; }
  .side-nav { display: none; }
  .content-area { margin-left: 0; width: 100%; }
  .site-header-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    padding: 14px 20px;
    position: sticky;
    top: 0;
    z-index: 200;
    height: 64px;
    box-shadow: 0 4px 20px rgba(11, 26, 43, 0.3);
  }
  .mobile-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
  }
  .mobile-brand .brand-logo { width: 34px; height: 34px; font-size: 16px; }
  .menu-toggle {
    width: 40px; height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
  }
  .menu-toggle span {
    display: block;
    width: 20px; height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
  }
  .menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-menu {
    position: fixed;
    top: 64px; left: 0;
    width: 100%;
    background: var(--primary);
    padding: 20px;
    z-index: 199;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  }
  .mobile-menu.open { transform: translateY(0); }
  .mobile-menu .nav-link { padding: 14px; font-size: 15px; }
  .mobile-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.45);
    font-size: 12px;
    margin-top: 16px;
    padding: 16px 0 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
  .mobile-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 8px rgba(0, 229, 160, 0.7); }
  .main-content { padding: 28px 0 56px; }
  .container { padding: 0 16px; }
  .article-card { padding: 24px 20px; }
  .article-header h1 { font-size: 24px; }
  .article-body { font-size: 15px; }
  .recommend-grid { grid-template-columns: 1fr; }
  .article-footer { flex-direction: column; gap: 12px; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .breadcrumb-wrap { font-size: 12px; gap: 4px; }
}
@media (max-width: 520px) {
  .article-card { padding: 20px 16px; }
  .article-header h1 { font-size: 21px; }
  .article-meta { gap: 8px; flex-wrap: wrap; }
  .article-meta .dot-sep { display: none; }
}

/* roulang page: category1 */
:root {
  --primary: #0B1A2B;
  --primary-light: #132238;
  --accent: #00E5A0;
  --gold: #F7B733;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #22262B;
  --text-sub: #6B7280;
  --text-light: #9CA3AF;
  --border: #ECEEF1;
  --radius-lg: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 20px rgba(11,26,43,0.08);
  --shadow-hover: 0 8px 30px rgba(0,229,160,0.15);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: all .25s ease; }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* 左侧导航 */
.side-nav {
  position: fixed;
  top: 0; left: 0;
  width: 220px;
  height: 100vh;
  background: var(--primary);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px rgba(0,0,0,0.12);
}
.brand-area {
  height: 80px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.brand-logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--gold) 100%);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 21px;
  box-shadow: 0 0 18px rgba(0,229,160,0.35);
  flex-shrink: 0;
}
.brand-name {
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.5px;
}
.brand-name small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}
.side-links {
  padding: 24px 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: 10px;
  color: rgba(255,255,255,0.72);
  font-size: 14px;
  font-weight: 400;
  transition: all .25s ease;
  position: relative;
}
.nav-link i {
  width: 16px;
  font-size: 15px;
  text-align: center;
  flex-shrink: 0;
}
.nav-link:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.04);
  transform: translateX(2px);
}
.nav-link.active {
  color: var(--accent);
  background: rgba(0,229,160,0.12);
  font-weight: 600;
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(0,229,160,0.5);
}
.side-status {
  padding: 18px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: rgba(0,229,160,0.85);
  flex-shrink: 0;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(0,229,160,0.6);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.82); }
}

/* 移动端导航 */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--primary);
  z-index: 1001;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.mobile-brand {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-brand .brand-logo {
  width: 34px; height: 34px;
  font-size: 17px;
  border-radius: 8px;
}
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: #fff;
  margin: 3px 0;
  border-radius: 2px;
  transition: all .3s ease;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--primary);
  z-index: 1002;
  padding: 80px 24px 32px;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
}
.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  display: flex;
}
.mobile-drawer .drawer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.drawer-links .nav-link {
  padding: 16px 18px;
  font-size: 16px;
  border-radius: 12px;
  color: rgba(255,255,255,0.85);
}
.drawer-links .nav-link.active {
  background: rgba(0,229,160,0.14);
  color: var(--accent);
}
.drawer-close {
  position: absolute;
  top: 16px; right: 16px;
  background: rgba(255,255,255,0.08);
  border: none;
  color: #fff;
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
}
.mobile-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(0,229,160,0.8);
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* 主内容区 */
.main-wrap {
  margin-left: 220px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 分类页Banner */
.page-banner {
  position: relative;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--primary);
}
.page-banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.5;
  z-index: 1;
}
.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,26,43,0.75) 0%, rgba(11,26,43,0.55) 100%);
  z-index: 2;
}
.banner-content {
  position: relative;
  z-index: 3;
  max-width: 720px;
  padding: 0 32px;
}
.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,229,160,0.15);
  border: 1px solid rgba(0,229,160,0.3);
  color: var(--accent);
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.banner-content h1 {
  font-size: 42px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.banner-content .banner-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto;
}

/* 板块通用 */
.section-block {
  padding: 84px 0;
}
.section-block.alt-bg {
  background: #EBEEF3;
}
.section-head {
  margin-bottom: 44px;
  max-width: 720px;
}
.section-head .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0,229,160,0.1);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 10px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* 内容卡片 */
.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .3s ease;
  border: 1px solid rgba(255,255,255,0);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0,229,160,0.3);
}
.service-card-img {
  height: 190px;
  overflow: hidden;
  position: relative;
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.service-card:hover .service-card-img img {
  transform: scale(1.05);
}
.service-card-body {
  padding: 24px 24px 28px;
}
.service-card-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.service-card-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 16px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.card-link i {
  font-size: 13px;
  transition: transform .25s ease;
}
.card-link:hover i {
  transform: translateX(4px);
}

/* 优势数据区 */
.adv-wrap {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #162A45 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  position: relative;
  overflow: hidden;
}
.adv-wrap::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,160,0.2) 0%, transparent 70%);
  pointer-events: none;
}
.adv-wrap::after {
  content: '';
  position: absolute;
  bottom: -60px; left: 20%;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247,183,51,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 44px;
  position: relative;
  z-index: 2;
}
.adv-item {
  text-align: center;
  padding: 20px 16px;
}
.adv-num {
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent) 20%, var(--gold) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.3;
  letter-spacing: -1px;
}
.adv-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-top: 6px;
}
.adv-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  position: relative;
  z-index: 2;
}
.adv-point {
  display: flex;
  gap: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 20px;
  transition: all .3s ease;
}
.adv-point:hover {
  border-color: rgba(0,229,160,0.35);
  background: rgba(0,229,160,0.06);
}
.adv-point-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(0,229,160,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
  flex-shrink: 0;
}
.adv-point-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.adv-point-text p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

/* 流程路径 */
.process-section {
  position: relative;
}
.process-wrap {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}
.process-steps {
  flex: 1;
  position: relative;
  padding-left: 40px;
}
.process-steps::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(0,229,160,0.1) 100%);
}
.process-step {
  position: relative;
  padding: 16px 0 16px 20px;
  cursor: pointer;
}
.process-step::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 22px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px rgba(0,229,160,0.3);
}
.process-step .step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  display: block;
  margin-bottom: 4px;
}
.process-step .step-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.process-step .step-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}
.process-right {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.process-right img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.faq-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 24px;
  border: 1px solid var(--border);
  transition: all .3s ease;
}
.faq-item:hover {
  border-color: rgba(0,229,160,0.35);
  box-shadow: var(--shadow);
}
.faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}
.faq-q-icon {
  width: 22px; height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
}
.faq-q-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.6;
}
.faq-a {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  padding-left: 34px;
}

/* CTA */
.cta-section {
  padding: 84px 0 96px;
}
.cta-card {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,229,160,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.cta-card h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
}
.cta-card p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 500px;
  margin: 0 auto 32px;
  position: relative;
}
.btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 34px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--gold) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,229,160,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,229,160,0.45);
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.2) 0%, transparent 60%);
  transform: translateY(100%);
  transition: transform .4s ease;
}
.btn-primary:hover::after {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(0,229,160,0.6);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(0,229,160,0.1);
  border-color: var(--accent);
}

/* 页脚 */
.site-footer {
  background: var(--primary);
  padding: 64px 0 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 24px;
}
.footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.9;
  max-width: 340px;
}
.footer-links h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  transition: all .25s ease;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i {
  color: var(--accent);
  width: 16px;
  text-align: center;
}
.footer-contact p:last-child {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom {
  text-align: center;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* 响应式 */
@media (max-width: 1024px) {
  .side-nav { width: 180px; }
  .main-wrap { margin-left: 180px; }
  .brand-area { padding: 0 16px; }
  .brand-name { font-size: 13px; }
  .brand-name small { font-size: 10px; }
  .nav-link { padding: 11px 14px; font-size: 13px; }
  .service-cards { gap: 20px; }
  .adv-wrap { padding: 40px; }
  .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
  .side-nav { display: none; }
  .mobile-header { display: flex; }
  .main-wrap { margin-left: 0; }
  .section-block { padding: 56px 0; }
  .container { padding: 0 20px; }
  .page-banner { height: 300px; }
  .banner-content h1 { font-size: 32px; }
  .banner-content .banner-desc { font-size: 16px; }
  .service-cards { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .adv-features { grid-template-columns: 1fr; }
  .process-wrap { flex-direction: column; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-card { padding: 48px 24px; }
  .adv-wrap { padding: 32px 24px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section-block { padding: 44px 0; }
  .section-head h2 { font-size: 24px; }
  .page-banner { height: 260px; }
  .banner-content h1 { font-size: 26px; }
  .banner-content .banner-desc { font-size: 15px; }
  .adv-grid { grid-template-columns: 1fr; gap: 12px; }
  .adv-num { font-size: 32px; }
  .btn { width: 100%; justify-content: center; padding: 14px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
}