/* roulang page: index */
:root {
  --color-primary: #1E5C8B;
  --color-primary-dark: #164A70;
  --color-primary-light: #E8F1F7;
  --color-accent: #0EA5A4;
  --color-bg: #F6F9FC;
  --color-surface: #FFFFFF;
  --color-text: #1A2B3C;
  --color-text-sub: #5C6B7A;
  --color-border: #DCE6EE;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 12px 36px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --transition: all .25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  margin: 0 0 16px;
  font-weight: 700;
  color: var(--color-text);
}

p {
  margin: 0 0 16px;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

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

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

.container-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* 通用 section 间距 */
.section {
  padding: 100px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: .02em;
}

.section-title {
  font-size: 36px;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 17px;
  color: var(--color-text-sub);
  max-width: 680px;
  line-height: 1.7;
}

/* 顶部提示条 */
.top-bar {
  background: #102B3E;
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  padding: 10px 0;
  position: relative;
  z-index: 1001;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.top-bar-inner .close-tip {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.top-bar-inner .close-tip:hover {
  color: #fff;
}

.top-bar i {
  color: var(--color-accent);
  margin-right: 6px;
}

/* 头部导航 */
.site-header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.nav-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 72px;
  position: relative;
}

.nav-left, .nav-right {
  display: flex;
  align-items: center;
}

.nav-left ul, .nav-right ul {
  display: flex;
  gap: 6px;
}

.nav-right {
  justify-content: flex-end;
}

.nav-link {
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-sub);
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-logo {
  text-align: center;
  padding: 0 12px;
}

.logo-text {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text) !important;
  letter-spacing: .01em;
  white-space: nowrap;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 9px;
  font-size: 15px;
  flex-shrink: 0;
}

/* 移动端导航 */
.menu-toggle {
  display: none;
  font-size: 22px;
  color: var(--color-primary);
  padding: 10px;
  border-radius: 8px;
  transition: var(--transition);
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

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

.mobile-menu {
  display: none;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 16px 20px;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 12px 24px rgba(0,0,0,0.06);
}

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--color-text);
  border-radius: 10px;
  transition: var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.is-active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Hero */
.hero {
  background-image: linear-gradient(105deg, rgba(255,255,255,0.93) 20%, rgba(230,240,248,0.82) 60%, rgba(200,220,235,0.40)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 120px 0 80px;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-copy .hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(14, 165, 164, 0.1);
  color: #0B7A78;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero-copy h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--color-text);
  letter-spacing: .01em;
}

.hero-copy .hero-desc {
  font-size: 17px;
  color: var(--color-text-sub);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: var(--transition);
  line-height: 1.4;
}

.btn i {
  font-size: 14px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(30, 92, 139, 0.22);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(30, 92, 139, 0.28);
}

.btn-outline {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(30, 92, 139, 0.12);
}

.btn:focus-visible,
.nav-link:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid rgba(30, 92, 139, 0.35);
  outline-offset: 2px;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  border-radius: 18px;
  box-shadow: var(--shadow-card-hover);
  width: 100%;
  object-fit: cover;
}

.hero-badges {
  display: flex;
  gap: 14px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transition: var(--transition);
}

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

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

/* 痛点区 */
.pain-section {
  background: var(--color-surface);
}

.pain-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.pain-list {
  margin-top: 24px;
}

.pain-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.pain-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 17px;
}

.pain-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.pain-item p {
  font-size: 14px;
  color: var(--color-text-sub);
  margin: 0;
  line-height: 1.7;
}

.pain-visual img {
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  width: 100%;
  object-fit: cover;
}

/* 解决方案区 */
.solution-section {
  background: var(--color-bg);
}

.solution-core {
  background-image: linear-gradient(115deg, var(--color-primary-dark) 0%, var(--color-primary) 70%, #2C6E9C 100%);
  border-radius: var(--radius-card);
  padding: 40px 48px;
  color: #fff;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 32px;
  box-shadow: 0 8px 28px rgba(30, 92, 139, 0.20);
}

.solution-core-icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.15);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
}

.solution-core h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 8px;
}

.solution-core p {
  margin: 0;
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
}

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

.solution-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.solution-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.solution-card-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 20px;
  margin-bottom: 20px;
}

.solution-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.solution-card p {
  font-size: 14px;
  color: var(--color-text-sub);
  margin: 0;
  line-height: 1.8;
}

/* 数据区 */
.stats-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.stats-item {
  text-align: center;
  padding: 32px 20px;
  border-left: 1px solid var(--color-border);
}

.stats-item:first-child {
  border-left: none;
}

.stats-icon {
  color: var(--color-accent);
  font-size: 20px;
  margin-bottom: 8px;
}

.stats-number {
  font-size: 44px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 4px;
  letter-spacing: .01em;
}

.stats-label {
  font-size: 14px;
  color: var(--color-text-sub);
}

/* 证言区 */
.testimonial-section {
  background: var(--color-bg);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.testimonial-main {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 42px 40px;
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--color-primary);
  position: relative;
}

.testimonial-main .quote-icon {
  position: absolute;
  top: 28px;
  right: 32px;
  font-size: 56px;
  color: var(--color-primary-light);
  opacity: .7;
}

.testimonial-main .t-star {
  color: #E8A33D;
  font-size: 15px;
  margin-bottom: 16px;
}

.testimonial-main p {
  font-size: 17px;
  line-height: 1.85;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.t-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.t-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 600;
}

.t-name {
  font-size: 15px;
  font-weight: 600;
}

.t-role {
  font-size: 13px;
  color: var(--color-text-sub);
}

.testimonial-side {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.testimonial-small {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  flex: 1;
}

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

.testimonial-small .t-star {
  color: #E8A33D;
  font-size: 13px;
  margin-bottom: 12px;
}

.testimonial-small p {
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 16px;
}

.testimonial-small .t-name {
  font-size: 14px;
  color: var(--color-text-sub);
}

/* 资讯区 */
.news-section {
  background: var(--color-surface);
}

.news-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 20px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.news-thumb {
  border-radius: 12px;
  overflow: hidden;
}

.news-thumb img {
  width: 180px;
  height: 135px;
  object-fit: cover;
  border-radius: 12px;
  transition: transform .25s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.03);
}

.news-body {
  display: flex;
  flex-direction: column;
}

.news-tag {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 10px;
  letter-spacing: .02em;
}

.news-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-body h3 a {
  color: var(--color-text);
}

.news-body h3 a:hover {
  color: var(--color-primary);
}

.news-body p {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 12px;
  line-height: 1.7;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: auto;
}

.news-meta a {
  font-weight: 500;
  font-size: 13px;
}

.empty-state {
  text-align: center;
  padding: 80px 24px;
  background: var(--color-bg);
  border-radius: var(--radius-card);
  border: 1px dashed var(--color-border);
  color: var(--color-text-sub);
  font-size: 16px;
}

.empty-state i {
  font-size: 36px;
  color: var(--color-border);
  display: block;
  margin-bottom: 16px;
}

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

.faq-wrap {
  margin-top: 40px;
  max-width: 860px;
}

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

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

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

.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  transition: var(--transition);
}

.accordion-title:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.accordion-title .acc-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

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

.accordion-content {
  padding: 20px 28px 24px;
  background: var(--color-primary-light);
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.8;
}

.accordion-content p {
  margin: 0;
}

/* CTA */
.cta-section {
  background-image: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary));
  padding: 90px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 65%);
  border-radius: 50%;
}

.cta-section h2 {
  color: #fff;
  font-size: 34px;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.cta-section .btn-light {
  background: #fff;
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,0,0,0.16);
  position: relative;
  z-index: 1;
}

.cta-section .btn-light:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.20);
}

.cta-note {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-top: 16px;
  position: relative;
  z-index: 1;
}

/* 页脚 */
.site-footer {
  background: #102B3E;
  color: #9AB4C8;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding: 64px 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-logo i {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--color-accent);
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}

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

.footer-col ul a {
  color: #9AB4C8;
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-brand p {
  font-size: 14px;
  color: #9AB4C8;
  line-height: 1.8;
  margin: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 16px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.footer-bottom .container-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  margin: 0;
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-copy h1 {
    font-size: 38px;
  }

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

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

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

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

  .stats-item {
    border-left: none;
    border-bottom: 1px solid var(--color-border);
  }

  .stats-item:nth-child(odd) {
    border-right: 1px solid var(--color-border);
  }

  .stats-item:nth-child(3),
  .stats-item:nth-child(4) {
    border-bottom: none;
  }

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

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

  .solution-core {
    padding: 30px 28px;
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

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

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

  .nav-grid {
    grid-template-columns: 1fr;
    min-height: 60px;
  }

  .nav-left, .nav-right {
    display: none;
  }

  .nav-logo {
    text-align: left;
    padding: 12px 50px 12px 16px;
  }

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

  .menu-toggle {
    display: block;
  }

  .mobile-menu.open {
    display: flex;
  }

  .hero {
    padding: 70px 0 56px;
  }

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

  .hero-copy .hero-desc {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .hero-badges {
    margin-top: 32px;
    justify-content: center;
  }

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

  .news-card {
    grid-template-columns: 1fr;
  }

  .news-thumb img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 44px 24px 32px;
  }

  .footer-bottom .container-inner {
    justify-content: center;
    text-align: center;
  }

  .stats-number {
    font-size: 32px;
  }

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

  .cta-section {
    padding: 64px 0;
  }

  .top-bar-inner {
    font-size: 12px;
    padding-right: 44px;
    text-align: center;
  }
}

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

  .logo-text {
    font-size: 15px;
  }

  .logo-badge {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .hero-badges {
    flex-direction: column;
    align-items: stretch;
  }

  .badge-chip {
    justify-content: center;
  }

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

  .stats-item {
    padding: 24px 12px;
  }

  .stats-number {
    font-size: 28px;
  }

  .solution-core h3 {
    font-size: 17px;
  }

  .solution-card {
    padding: 24px 20px;
  }

  .testimonial-main {
    padding: 28px 24px;
  }

  .testimonial-main p {
    font-size: 15px;
  }

  .accordion-title {
    padding: 18px 20px;
    font-size: 15px;
  }

  .accordion-content {
    padding: 16px 20px;
    font-size: 13px;
  }
}

/* roulang page: article */
:root {
        --color-primary: #1E5C8B;
        --color-primary-dark: #164A70;
        --color-primary-light: #E8F1F7;
        --color-accent: #0EA5A4;
        --color-bg: #F6F9FC;
        --color-surface: #FFFFFF;
        --color-text: #1A2B3C;
        --color-text-sub: #5C6B7A;
        --color-border: #DCE6EE;
        --color-footer: #102B3E;
        --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --radius-card: 16px;
        --radius-btn: 10px;
        --radius-tag: 8px;
        --shadow-card: 0 4px 24px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.04);
        --shadow-hover: 0 12px 36px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
        --transition: all 0.25s ease;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
        font-family: var(--font-main);
        font-size: 16px;
        line-height: 1.8;
        color: var(--color-text);
        background: var(--color-bg);
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--color-primary-dark); }
    ul, ol { list-style: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
    .container-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

    /* 安全提示条 */
    .top-tip {
        background: var(--color-footer);
        color: rgba(255,255,255,0.88);
        font-size: 13px;
        line-height: 40px;
        height: 40px;
        overflow: hidden;
    }
    .top-tip-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .top-tip-inner i {
        color: var(--color-accent);
        margin-right: 6px;
    }
    .top-close {
        background: transparent;
        color: rgba(255,255,255,0.65);
        font-size: 20px;
        line-height: 1;
        padding: 0 4px;
        transition: var(--transition);
    }
    .top-close:hover { color: #fff; }

    /* 导航 */
    .site-header {
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        position: sticky;
        top: 0;
        z-index: 50;
        box-shadow: 0 1px 0 rgba(0,0,0,0.02);
    }
    .nav-grid {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        min-height: 72px;
        padding: 0 24px;
    }
    .nav-left ul, .nav-right ul {
        display: flex;
        align-items: center;
        gap: 32px;
        margin: 0;
        padding: 0;
    }
    .nav-right { display: flex; justify-content: flex-end; }
    .nav-link {
        position: relative;
        display: inline-block;
        padding: 8px 2px;
        font-size: 15px;
        font-weight: 500;
        color: var(--color-text-sub);
        border-bottom: 2px solid transparent;
        transition: var(--transition);
    }
    .nav-link:hover,
    .nav-link.is-active {
        color: var(--color-primary);
        border-bottom-color: var(--color-primary);
    }
    .nav-logo {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0 20px;
    }
    .logo-text {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 700;
        color: var(--color-text);
        letter-spacing: 0.01em;
        white-space: nowrap;
        transition: var(--transition);
    }
    .logo-text:hover { opacity: 0.85; }
    .logo-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        border-radius: 8px;
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-size: 15px;
        flex-shrink: 0;
    }
    .menu-toggle {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-size: 18px;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }
    .menu-toggle:hover { background: var(--color-primary); color: #fff; }
    .mobile-menu {
        display: none;
        background: var(--color-surface);
        border-top: 1px solid var(--color-border);
        padding: 8px 16px 16px;
    }
    .mobile-menu a {
        display: block;
        padding: 12px 8px;
        font-size: 16px;
        color: var(--color-text-sub);
        border-radius: 8px;
        border-bottom: 1px solid var(--color-border);
    }
    .mobile-menu a:last-child { border-bottom: none; }
    .mobile-menu a.is-active { color: var(--color-primary); font-weight: 600; background: var(--color-primary-light); }

    /* 面包屑 */
    .breadcrumb-wrap {
        padding: 24px 0 0;
        font-size: 14px;
        color: var(--color-text-sub);
    }
    .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
    .breadcrumb a { color: var(--color-text-sub); }
    .breadcrumb a:hover { color: var(--color-primary); }
    .breadcrumb .sep { color: #B0BECB; }
    .breadcrumb .current {
        color: var(--color-text);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        max-width: 360px;
    }

    /* 文章主体 */
    .article-main { padding: 32px 0 80px; }
    .article-wrap {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        padding: 48px 56px 56px;
    }
    .article-header { margin-bottom: 36px; }
    .article-cat { margin-bottom: 16px; }
    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 14px;
        border-radius: 999px;
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
    }
    .article-header h1 {
        font-size: 34px;
        font-weight: 700;
        line-height: 1.35;
        color: var(--color-text);
        margin: 0 0 14px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
        color: var(--color-text-sub);
        margin-bottom: 24px;
    }
    .article-meta i { color: var(--color-primary); margin-right: 4px; }
    .meta-divider { color: #B0BECB; }
    .article-summary {
        background: var(--color-primary-light);
        border-radius: 12px;
        padding: 20px 24px;
        margin-top: 20px;
        border-left: 4px solid var(--color-primary);
    }
    .article-summary p {
        font-size: 15px;
        line-height: 1.85;
        color: var(--color-text);
        margin: 0;
    }

    /* 正文 */
    .article-body {
        font-size: 16px;
        line-height: 1.9;
        color: var(--color-text);
        border-top: 1px solid var(--color-border);
        padding-top: 32px;
    }
    .article-body p { margin-bottom: 22px; }
    .article-body h2 {
        font-size: 24px;
        font-weight: 700;
        border-left: 4px solid var(--color-primary);
        padding-left: 16px;
        margin: 44px 0 18px;
        line-height: 1.4;
    }
    .article-body h3 {
        font-size: 19px;
        font-weight: 600;
        margin: 30px 0 12px;
        color: var(--color-text);
    }
    .article-body ul {
        margin: 0 0 24px;
        padding: 0;
    }
    .article-body ul li {
        position: relative;
        padding-left: 24px;
        margin-bottom: 10px;
        line-height: 1.8;
    }
    .article-body ul li::before {
        content: "";
        position: absolute;
        left: 4px;
        top: 11px;
        width: 8px;
        height: 8px;
        border-radius: 2px;
        background: var(--color-primary);
    }
    .article-body ol {
        margin: 0 0 24px;
        padding-left: 4px;
        counter-reset: article-ol;
    }
    .article-body ol li {
        position: relative;
        padding-left: 40px;
        margin-bottom: 12px;
        counter-increment: article-ol;
    }
    .article-body ol li::before {
        content: counter(article-ol);
        position: absolute;
        left: 0;
        top: 2px;
        width: 26px;
        height: 26px;
        border-radius: 8px;
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-size: 13px;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .article-body blockquote {
        background: var(--color-primary-light);
        border-left: 4px solid var(--color-primary);
        border-radius: 0 12px 12px 0;
        padding: 18px 24px;
        margin: 28px 0;
        font-size: 15px;
        color: var(--color-text);
    }
    .article-body blockquote p { margin-bottom: 0; }
    .article-body img {
        width: 100%;
        border-radius: 12px;
        margin: 28px 0;
    }
    .article-body a {
        border-bottom: 1px solid var(--color-primary);
    }
    .article-body a:hover { border-bottom-color: transparent; }
    .article-body table {
        width: 100%;
        border-collapse: collapse;
        margin: 28px 0;
        font-size: 15px;
    }
    .article-body table th,
    .article-body table td {
        border: 1px solid var(--color-border);
        padding: 12px 16px;
        text-align: left;
    }
    .article-body table th {
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-weight: 600;
    }
    .article-body table tr:nth-child(even) td { background: #F8FBFD; }

    /* 返回入口 */
    .article-back {
        margin-top: 40px;
        padding-top: 24px;
        border-top: 1px solid var(--color-border);
        display: flex;
    }
    .article-back a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 15px;
        font-weight: 500;
        color: var(--color-text-sub);
        padding: 8px 0;
        transition: var(--transition);
    }
    .article-back a:hover { color: var(--color-primary); transform: translateX(-3px); }
    .article-back a i { font-size: 13px; }

    /* 相关推荐 */
    .related-section {
        background: var(--color-bg);
        padding: 60px 0 80px;
    }
    .section-head { margin-bottom: 36px; }
    .section-head h2 {
        font-size: 30px;
        font-weight: 700;
        margin-bottom: 8px;
    }
    .section-head p {
        color: var(--color-text-sub);
        font-size: 15px;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        display: block;
        background: var(--color-surface);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: var(--transition);
        border: 1px solid var(--color-border);
    }
    .related-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
        border-color: transparent;
    }
    .related-card img {
        width: 100%;
        aspect-ratio: 4/3;
        object-fit: cover;
        transition: transform 0.3s ease;
    }
    .related-card:hover img { transform: scale(1.03); }
    .related-body { padding: 20px 24px 24px; }
    .related-body .tag { margin-bottom: 12px; }
    .related-body h3 {
        font-size: 17px;
        font-weight: 600;
        line-height: 1.5;
        color: var(--color-text);
        margin: 10px 0 0;
        transition: var(--transition);
    }
    .related-card:hover .related-body h3 { color: var(--color-primary); }

    /* CTA */
    .article-cta {
        background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
        text-align: center;
        padding: 64px 24px;
    }
    .article-cta h2 {
        color: #fff;
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 12px;
    }
    .article-cta p {
        color: rgba(255,255,255,0.85);
        font-size: 15px;
        margin-bottom: 28px;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 13px 32px;
        border-radius: var(--radius-btn);
        font-size: 16px;
        font-weight: 600;
        line-height: 1.4;
        transition: var(--transition);
        border: 1px solid transparent;
    }
    .btn-light {
        background: #fff;
        color: var(--color-primary);
    }
    .btn-light:hover {
        background: var(--color-primary-light);
        color: var(--color-primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    }
    .btn-primary {
        background: var(--color-primary);
        color: #fff;
        box-shadow: 0 4px 12px rgba(30,92,139,0.20);
    }
    .btn-primary:hover {
        background: var(--color-primary-dark);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(30,92,139,0.25);
    }
    .btn:focus-visible {
        outline: 3px solid rgba(30,92,139,0.35);
        outline-offset: 2px;
    }

    /* 页脚 */
    .site-footer {
        background: var(--color-footer);
        color: #9AB4C8;
        font-size: 14px;
    }
    .footer-grid {
        max-width: 1200px;
        margin: 0 auto;
        padding: 64px 24px 40px;
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 48px;
    }
    .footer-brand .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 17px;
        font-weight: 700;
        color: #E8F1F7;
        margin-bottom: 16px;
    }
    .footer-brand .footer-logo i {
        width: 32px;
        height: 32px;
        border-radius: 8px;
        background: rgba(255,255,255,0.12);
        color: var(--color-accent);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
    }
    .site-footer p { line-height: 1.7; max-width: 320px; font-size: 13px; color: #7E99AE; }
    .site-footer h4 {
        color: #D8E6F0;
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 18px;
    }
    .site-footer ul { margin: 0; padding: 0; }
    .site-footer li { margin-bottom: 12px; }
    .site-footer a {
        color: #9AB4C8;
        font-size: 14px;
        transition: var(--transition);
    }
    .site-footer a:hover { color: #E8F1F7; }
    .site-footer li:last-child { margin-bottom: 0; }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.08);
        padding: 20px 0;
        font-size: 13px;
        color: #6F8CA0;
    }
    .footer-bottom .container-inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    .footer-bottom p { margin: 0; font-size: 13px; color: #6F8CA0; max-width: none; }

    /* 未找到 */
    .not-found {
        text-align: center;
        padding: 64px 24px;
    }
    .not-found-icon {
        width: 80px;
        height: 80px;
        border-radius: 50%;
        background: var(--color-primary-light);
        color: var(--color-primary);
        font-size: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 24px;
    }
    .not-found h1 { font-size: 30px; margin-bottom: 12px; }
    .not-found p { color: var(--color-text-sub); margin-bottom: 28px; }

    /* 响应式 */
    @media (max-width: 1024px) {
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .article-wrap { padding: 40px 36px; }
    }
    @media (max-width: 768px) {
        .top-tip { font-size: 12px; }
        .nav-grid { grid-template-columns: 1fr auto; padding: 0 16px; min-height: 64px; }
        .nav-left, .nav-right { display: none; }
        .menu-toggle { display: inline-flex; }
        .nav-logo { justify-content: flex-start; padding: 0; }
        .logo-text { font-size: 16px; }
        .breadcrumb-wrap { padding: 16px 0 0; }
        .article-main { padding: 24px 0 48px; }
        .article-wrap { padding: 28px 20px 32px; }
        .article-header h1 { font-size: 26px; }
        .article-meta { flex-wrap: wrap; gap: 8px; }
        .related-grid { grid-template-columns: 1fr; gap: 20px; }
        .section-head h2 { font-size: 24px; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-top: 48px; }
        .footer-bottom .container-inner { flex-direction: column; text-align: center; }
        .article-cta { padding: 48px 16px; }
        .article-cta h2 { font-size: 24px; }
    }
    @media (max-width: 520px) {
        .container-inner { padding: 0 16px; }
        .logo-badge { width: 28px; height: 28px; font-size: 13px; }
        .article-body h2 { font-size: 20px; }
        .article-body { font-size: 15px; }
        .article-summary { padding: 16px 16px; }
        .article-back { margin-top: 28px; }
        .not-found { padding: 40px 16px; }
    }

/* roulang page: category1 */
:root {
            --color-primary: #1E5C8B;
            --color-primary-dark: #164A70;
            --color-primary-light: #E8F1F7;
            --color-accent: #0EA5A4;
            --color-bg: #F6F9FC;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-text-sub: #5C6B7A;
            --color-border: #DCE6EE;
            --color-footer: #102B3E;
            --color-footer-text: #9AB4C8;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 8px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.10), 0 2px 6px rgba(0, 0, 0, 0.06);
            --container-max: 1200px;
            --font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 110px;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--color-primary-dark);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header & Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }

        .top-tip {
            background: #102B3E;
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            line-height: 40px;
            height: 40px;
        }
        .top-tip-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .top-tip-inner span i {
            margin-right: 8px;
            color: #7FD1CC;
        }
        .top-tip-close {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            cursor: pointer;
            font-size: 14px;
            padding: 0 6px;
            line-height: 40px;
        }
        .top-tip-close:hover {
            color: #fff;
        }

        .nav-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            min-height: 78px;
            position: relative;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-left ul,
        .nav-right ul {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .nav-right ul {
            justify-content: flex-end;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-sub);
            border-radius: 8px;
            position: relative;
            transition: color 0.25s ease, background 0.25s ease;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .nav-link.is-active {
            color: var(--color-primary);
            font-weight: 600;
            background: var(--color-primary-light);
        }
        .nav-link.is-active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 0;
            width: 24px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-primary);
        }

        .nav-logo {
            text-align: center;
        }
        .logo-text {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo-text:hover {
            color: var(--color-text);
        }
        .logo-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--color-primary);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            font-size: 18px;
            color: var(--color-text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 12px 24px 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 12px;
            font-size: 16px;
            color: var(--color-text-sub);
            border-radius: 8px;
            min-height: 44px;
            line-height: 44px;
        }
        .mobile-menu a:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .mobile-menu a.is-active {
            color: var(--color-primary);
            font-weight: 600;
            background: var(--color-primary-light);
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            padding: 72px 0 48px;
            background: linear-gradient(105deg, rgba(255, 255, 255, 0.95) 20%, rgba(230, 240, 248, 0.88) 60%, rgba(200, 220, 235, 0.45)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-sub);
            margin-bottom: 32px;
        }
        .breadcrumb a {
            color: var(--color-text-sub);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .breadcrumb-current {
            color: var(--color-text);
            font-weight: 500;
        }
        .breadcrumb i {
            font-size: 12px;
            color: #B0BEC9;
        }

        .page-hero h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 16px;
            max-width: 800px;
            letter-spacing: -0.01em;
        }
        .page-hero h1 .highlight {
            color: var(--color-primary);
        }
        .page-hero .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--color-text-sub);
            max-width: 680px;
            margin-bottom: 28px;
        }

        .page-hero-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.75);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(4px);
            width: fit-content;
        }
        .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
        }
        .meta-chip i {
            font-size: 12px;
        }
        .meta-divider {
            width: 1px;
            height: 18px;
            background: var(--color-border);
        }
        .meta-text {
            font-size: 13px;
            color: var(--color-text-sub);
        }
        .meta-text i {
            margin-right: 5px;
            color: var(--color-accent);
        }

        /* ========== Page Body Layout ========== */
        .page-body {
            padding: 64px 0 80px;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 48px;
            align-items: start;
        }

        /* ========== Main Content Sections ========== */
        .main-content .section-block {
            margin-bottom: 56px;
        }
        .main-content .section-block:last-child {
            margin-bottom: 0;
        }

        .section-title-wrap {
            margin-bottom: 24px;
        }
        .section-title-wrap .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .section-title-wrap h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
        }
        .section-title-wrap p {
            font-size: 15px;
            color: var(--color-text-sub);
            margin-top: 8px;
            max-width: 640px;
        }

        /* Intro card */
        .intro-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 36px;
            border: 1px solid rgba(220, 230, 238, 0.6);
        }
        .intro-card p {
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .intro-card p:last-child {
            margin-bottom: 0;
        }
        .intro-card p strong {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Verify list */
        .verify-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .verify-item {
            display: flex;
            gap: 18px;
            padding: 24px 28px;
            background: var(--color-surface);
            border-radius: 14px;
            border: 1px solid rgba(220, 230, 238, 0.7);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .verify-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .verify-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .verify-icon.accent {
            background: rgba(14, 165, 164, 0.12);
            color: var(--color-accent);
        }
        .verify-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .verify-content p {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--color-text-sub);
        }

        /* Steps */
        .steps-wrap {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px;
        }
        .steps-list {
            position: relative;
            padding: 0;
            margin: 0;
        }
        .steps-list::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-primary-light), var(--color-primary));
            opacity: 0.35;
            border-radius: 2px;
        }
        .steps-list li {
            position: relative;
            padding: 0 0 32px 72px;
        }
        .steps-list li:last-child {
            padding-bottom: 0;
        }
        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 5px rgba(30, 92, 139, 0.12);
            z-index: 1;
        }
        .steps-list li:nth-child(even) .step-num {
            background: var(--color-accent);
            box-shadow: 0 0 0 5px rgba(14, 165, 164, 0.12);
        }
        .step-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--color-text-sub);
            max-width: 520px;
        }

        /* Scenes */
        .scene-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .scene-card {
            background: var(--color-surface);
            border-radius: 14px;
            border: 1px solid rgba(220, 230, 238, 0.7);
            padding: 24px 26px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .scene-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card .scene-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            margin-bottom: 16px;
        }
        .scene-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .scene-card p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-sub);
        }

        /* ========== Sidebar ========== */
        .sidebar {
            position: sticky;
            top: 110px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid rgba(220, 230, 238, 0.6);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .side-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .side-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .side-card-body {
            padding: 22px 24px 24px;
        }
        .side-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .side-card-body p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-sub);
            margin-bottom: 16px;
        }
        .side-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            transition: gap 0.25s ease;
        }
        .side-link:hover {
            gap: 12px;
            color: var(--color-primary-dark);
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: 80px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }
        .faq-section .section-title-wrap {
            text-align: center;
        }
        .faq-section .section-title-wrap p {
            margin-left: auto;
            margin-right: auto;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .accordion-item {
            border-bottom: 1px solid var(--color-border);
        }
        .accordion-item:last-child {
            border-bottom: none;
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: background 0.25s ease, color 0.25s ease;
            background: #fff;
        }
        .accordion-title:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .accordion-title .acc-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
        }
        .accordion-item.is-active .accordion-title .acc-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: #fff;
        }

        .accordion-content {
            padding: 0 28px 22px;
            font-size: 14.5px;
            line-height: 1.75;
            color: var(--color-text-sub);
            background: var(--color-primary-light);
        }
        .accordion-item.is-active .accordion-content {
            padding-top: 4px;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .cta-inner .btn {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--color-primary-dark);
            border: 2px solid #fff;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .cta-inner .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            background: var(--color-primary-light);
        }
        .cta-inner .btn:focus {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 3px;
        }
        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px 48px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo i {
            color: var(--color-accent);
            font-size: 20px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-footer-text);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #D6E4F0;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-col ul li a {
            color: var(--color-footer-text);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            background: rgba(0, 0, 0, 0.15);
        }
        .footer-bottom .container-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(154, 180, 200, 0.7);
        }
        .footer-bottom p:last-child {
            color: rgba(154, 180, 200, 0.5);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-grid {
                grid-template-columns: 1fr auto;
                min-height: 70px;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-logo {
                text-align: left;
            }
            .menu-toggle {
                display: flex;
                justify-self: end;
            }
            .mobile-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
                border-bottom: 1px solid var(--color-border);
            }
            .mobile-menu.open {
                display: flex;
            }

            .content-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 48px 0 32px;
            }
            .page-hero h1 {
                font-size: 30px;
                line-height: 1.3;
            }
            .page-hero .hero-subtitle {
                font-size: 15px;
            }
            .page-hero-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .page-body {
                padding: 40px 0 56px;
            }
            .section-title-wrap h2 {
                font-size: 24px;
            }
            .intro-card {
                padding: 24px;
            }
            .verify-item {
                padding: 18px 20px;
            }
            .steps-wrap {
                padding: 24px 20px;
            }
            .steps-list li {
                padding-left: 60px;
            }
            .step-num {
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
            .scene-list {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom .container-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 15px;
                gap: 8px;
            }
            .logo-badge {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
            .container-inner {
                padding-left: 16px;
                padding-right: 16px;
            }
            .top-tip-inner {
                padding: 0 16px;
            }
            .top-tip-inner span {
                font-size: 12px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-subtitle {
                font-size: 14px;
                line-height: 1.65;
            }
            .page-hero-meta {
                padding: 12px 16px;
            }
            .accordion-title {
                padding: 18px 20px;
                font-size: 15px;
            }
            .accordion-content {
                padding: 0 20px 18px;
                font-size: 14px;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .cta-inner p {
                font-size: 14px;
            }
            .cta-inner .btn {
                padding: 12px 28px;
                font-size: 15px;
                display: block;
                width: 100%;
            }
        }

        /* A11y focus */
        a:focus,
        button:focus,
        .accordion-title:focus {
            outline: 3px solid rgba(30, 92, 139, 0.4);
            outline-offset: 2px;
        }