/* roulang page: index */
:root {
    --primary: #2F6BFF;
    --primary-dark: #1D5CE6;
    --primary-light: #EDF3FF;
    --accent: #1DBFB2;
    --accent-soft: #DFF7F3;
    --ctx-bg: #F8FAFF;
    --ink-1: #14213D;
    --ink-2: #33435B;
    --ink-3: #6A7A8E;
    --border: #E3E9F2;
  }
  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    background: var(--ctx-bg);
    color: var(--ink-2);
    line-height: 1.75;
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button {
    font-family: inherit;
    cursor: pointer;
  }

  .container-xl {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 10px;
    font-weight: 600;
    transition: all .2s ease;
    vertical-align: middle;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(47, 107, 255, .25);
  }
  .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(47, 107, 255, .32);
  }
  .btn-primary:active {
    transform: translateY(0);
    background: #154bbd;
  }
  .btn-primary:focus-visible {
    outline: 3px solid rgba(29, 191, 178, .55);
    outline-offset: 2px;
  }
  .btn-secondary {
    background: #fff;
    border: 1px solid #C7D6EE;
    color: var(--ink-1);
  }
  .btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary);
  }
  .btn-secondary:active {
    background: #dfe9ff;
  }
  .btn-secondary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  .text-link {
    color: var(--primary);
    font-weight: 600;
    position: relative;
    transition: color .2s ease;
  }
  .text-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
    text-underline-offset: 5px;
  }
  .text-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
  }

  .section-title {
    font-size: 30px;
    font-weight: 700;
    color: var(--ink-1);
    line-height: 1.35;
  }
  .section-subtitle {
    font-size: 16px;
    color: var(--ink-3);
    line-height: 1.8;
    margin-top: 10px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid transparent;
    transition: box-shadow .3s;
  }
  .site-header.scrolled {
    box-shadow: 0 6px 20px rgba(16, 28, 54, .08);
    border-color: #E8EDF6;
  }

  .nav-desktop .nav-item {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink-2);
    padding: 8px 4px;
    position: relative;
    transition: color .2s;
  }
  .nav-desktop .nav-item:hover {
    color: var(--primary);
  }
  .nav-desktop .nav-item.active {
    color: var(--primary);
    font-weight: 600;
  }
  .nav-desktop .nav-item.active::after {
    content: "";
    position: absolute;
    height: 2px;
    width: 100%;
    left: 0;
    bottom: 0;
    background: var(--primary);
    border-radius: 2px;
  }

  .badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 13px;
    padding: 3px 10px;
    border-radius: 999px;
    font-weight: 500;
  }
  .tag-chip {
    display: inline-block;
    background: #F1F5FE;
    color: var(--ink-2);
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 999px;
    font-weight: 500;
    transition: all .2s;
    border: 1px solid transparent;
  }
  .tag-chip:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: rgba(47,107,255,.35);
  }
  .tag-chip:focus-visible {
    outline: 2px solid var(--accent);
  }

  .content-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-1);
    transition: transform .2s ease, box-shadow .2s ease;
  }
  .content-card:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-4px);
  }

  .news-link {
    transition: color .18s;
  }
  .news-link:hover {
    color: var(--primary) !important;
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .faq-item.open .faq-answer {
    max-height: 500px;
  }
  .faq-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all .25s;
  }
  .faq-icon svg {
    transition: transform .25s;
  }
  .faq-item.open .faq-icon svg {
    transform: rotate(45deg);
  }
  .faq-item {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 14px;
    transition: background .25s, border-color .25s;
  }
  .faq-item.open {
    background: #F6F9FF;
    border-color: rgba(47,107,255,.25);
  }

  .footer-link {
    color: #A9BCD6;
    font-size: 15px;
    transition: color .2s;
    display: inline-block;
  }
  .footer-link:hover {
    color: #fff;
  }

  .bottom-cta {
    transform: translateY(110%);
    transition: transform .4s cubic-bezier(.23,.9,.25,1);
  }
  .bottom-cta.show {
    transform: translateY(0);
  }

  .hero-bg-layer {
    background: linear-gradient(90deg, #EFF5FF 0%, #F8FBFF 48%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
  }
  .hero-bg-layer::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 46%;
    background-image: radial-gradient(closest-side, rgba(47,107,255,.08), transparent 72%);
  }

  .number-block {
    font-size: 44px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
  }

  .steps-item {
    position: relative;
  }
  .step-num {
    width: 46px;
    height: 46px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
  }

  .soc-card {
    background: #fff;
    border: 1px solid #EAF0FA;
    border-radius: 18px;
    padding: 34px 28px;
    position: relative;
  }

  .empty-state-news {
    border: 1px dashed #C3D0E4;
    background: #FAFCFF;
    border-radius: 16px;
    padding: 60px 20px;
    text-align: center;
    color: var(--ink-3);
  }

  body.fixed-bar-visible #site-footer {
    padding-bottom: 64px;
  }

  @media (max-width: 767px) {
    .section-title {
      font-size: 24px;
    }
    .number-block {
      font-size: 30px;
    }
    .container-xl {
      padding-left: 16px;
      padding-right: 16px;
    }
    .hero-bg-layer {
      background: #F6FAFF;
    }
    .hero-bg-layer::after {
      display: none;
    }
  }

  @media (max-width: 1023px) {
    .desktop-nav-wrap {
      display: none;
    }
  }
  @media (min-width: 1024px) {
    .mobile-nav-toggle {
      display: none;
    }
    .mobile-drawer {
      display: none !important;
    }
  }

/* roulang page: article */
/* ===== Reset & Base ===== */
:root {
  --primary: #2F6BFF;
  --primary-600: #1D5CE6;
  --primary-light: #EDF3FF;
  --primary-ink: #143A8D;
  --accent: #1DBFB2;
  --accent-soft: #DFF7F3;
  --ctx-bg: #F6F8FD;
  --white: #FFFFFF;
  --card-border: #E3E9F2;
  --ink-1: #14213D;
  --ink-2: #33435B;
  --ink-3: #6A7A8E;
  --shadow-1: 0 8px 24px rgba(20, 33, 61, 0.06);
  --shadow-2: 0 16px 48px rgba(20, 33, 61, 0.12);
  --radius-card: 16px;
  --radius-btn: 10px;
  --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--ctx-bg);
  color: var(--ink-2);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

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

/* ===== Header 导航栏 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(20, 33, 61, 0.06);
  border-bottom-color: #eef2f7;
}

.nav-item {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 6px 2px;
  letter-spacing: 0.2px;
  transition: color 0.25s ease;
}

.nav-item::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.nav-item:hover {
  color: var(--ink-1);
}

.nav-item:hover::after {
  transform: scaleX(1);
}

.nav-item.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-item.active::after {
  transform: scaleX(1);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(47, 107, 255, 0.25);
}

.btn-primary:hover {
  background: var(--primary-600);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(47, 107, 255, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.92);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-secondary {
  background: #fff;
  border-color: #C7D6EE;
  color: var(--ink-1);
}

.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}

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

.btn-secondary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-outline-light {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.8);
  transform: translateY(-2px);
}

/* ===== Footer 页脚 ===== */
.footer-link {
  font-size: 14px;
  color: #94A3B8;
  transition: color 0.2s ease, padding-left 0.25s ease;
  display: inline-block;
  padding: 3px 0;
}

.footer-link:hover {
  color: #fff;
  padding-left: 5px;
}

/* ===== 面包屑 ===== */
.breadcrumb-area {
  background: #F8FAFC;
  border-bottom: 1px solid #E9EEF5;
  padding: 14px 0;
}

.breadcrumb-list {
  font-size: 13px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.breadcrumb-list a {
  color: var(--ink-3);
  transition: color 0.2s ease;
}

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

.breadcrumb-sep {
  margin: 0 6px;
  font-size: 12px;
  color: #B6C2D4;
}

/* ===== 文章头区 ===== */
.article-hero {
  background-color: #F9FBFF;
  background-image: linear-gradient(180deg, rgba(237, 243, 255, 0.7) 0%, rgba(249, 251, 255, 0.2) 100%);
  padding: 56px 0 40px;
  border-bottom: 1px solid #EDF0F6;
}

.article-title {
  font-size: 1.9rem;
  line-height: 1.35;
  color: var(--ink-1);
  font-weight: 700;
  letter-spacing: 0.5px;
  max-width: 860px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  color: var(--ink-3);
  font-size: 14px;
  margin-top: 16px;
}

.category-badge {
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  letter-spacing: 0.3px;
}

/* ===== 正文阅读区 ===== */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink-2);
  padding: 12px 0 20px;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5 {
  color: var(--ink-1);
  font-weight: 700;
  line-height: 1.4;
  margin: 2em 0 0.8em;
  letter-spacing: 0.3px;
}

.article-content h1 {
  font-size: 1.8rem;
}

.article-content h2 {
  font-size: 1.5rem;
  padding-bottom: 10px;
  border-bottom: 1px solid #E9EDF5;
  margin-top: 2.2em;
}

.article-content h3 {
  font-size: 1.25rem;
}

.article-content p {
  margin-bottom: 1.7em;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.7em 1.5em;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 0.5em;
  line-height: 1.8;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  margin: 28px 0;
  box-shadow: var(--shadow-1);
}

.article-content img + em {
  display: block;
  text-align: center;
  font-style: normal;
  font-size: 13px;
  color: var(--ink-3);
  margin-top: -16px;
  margin-bottom: 24px;
}

.article-content blockquote {
  border-left: 2px solid var(--primary);
  background: #F1F5FF;
  padding: 20px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--ink-2);
  font-style: normal;
  line-height: 1.8;
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(47, 107, 255, 0.3);
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.article-content a:hover {
  color: var(--primary-600);
  text-decoration-color: var(--primary-600);
}

.article-content hr {
  border: 0;
  border-top: 1px solid #E9EDF5;
  margin: 32px 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.article-content th,
.article-content td {
  border: 1px solid #e5eaf2;
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background-color: #F7F9FD;
  font-weight: 600;
  color: var(--ink-1);
}

/* ===== 复制链接/点赞 ===== */
.article-actions {
  border-top: 1px solid #ECF0F6;
  border-bottom: 1px solid #ECF0F6;
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid #D8E0EC;
  border-radius: 8px;
  padding: 8px 18px;
  transition: all 0.25s ease;
}

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

.action-btn:active {
  transform: scale(0.96);
}

/* ===== 相关推荐卡片 ===== */
.recommend-card {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  height: 100%;
}

.recommend-card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}

.recommend-img-wrap {
  aspect-ratio: 16 / 9.5;
  overflow: hidden;
}

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

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

/* ===== 内容未找到空态 ===== */
.not-found-block {
  padding: 80px 24px;
  text-align: center;
  background: #fff;
  border-radius: 20px;
  border: 1px dashed #D6E0EF;
}

/* ===== 文章内容区背景 ===== */
.article-main {
  padding: 48px 0 72px;
}

/* ===== 链接排版类 ===== */
.link-primary {
  color: var(--primary);
  font-weight: 500;
  transition: opacity 0.2s ease;
}

.link-primary:hover {
  opacity: 0.8;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ===== 读条标签 ===== */
.tag-chip {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  background: #F0F4FA;
  color: var(--ink-2);
  border: 1px solid #E2E8F2;
  transition: all 0.25s ease;
}

.tag-chip:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== 章节分隔标题 ===== */
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-1);
  line-height: 1.4;
  margin-bottom: 8px;
}

.section-subtext {
  color: var(--ink-3);
  font-size: 15px;
}

/* ===== FAQ模块静态分享 ===== */
.faq-mini {
  padding: 18px 22px;
  background: #F7F9FD;
  border-radius: 12px;
}

.faq-question {
  font-weight: 600;
  color: var(--ink-1);
  display: flex;
  gap: 10px;
  line-height: 1.6;
}

.faq-question::before {
  content: '';
  flex: 0 0 auto;
  width: 4px;
  height: auto;
  min-height: 20px;
  background: var(--primary);
  border-radius: 4px;
  display: inline-block;
  transform: translateY(4px);
}

/* ===== 移动端抽屉菜单 ===== */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 1001;
  pointer-events: none;
}

.mobile-drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 20, 35, 0.5);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.mobile-drawer-panel {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 86%;
  max-width: 360px;
  background: #fff;
  height: 100%;
  box-shadow: -16px 0 42px rgba(15, 23, 42, 0.18);
  transform: translateX(105%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0.22, 1);
  display: flex;
  flex-direction: column;
  padding: 24px;
  overflow-y: auto;
}

.mobile-drawer.open .mobile-drawer-overlay {
  opacity: 1;
}

.mobile-drawer.open .mobile-drawer-panel {
  transform: translateX(0);
}

.mobile-drawer-nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.mobile-drawer-nav ul li + li {
  border-top: 1px solid #EFF3FA;
}

.mobile-drawer-nav .mobile-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-1);
  padding: 16px 4px;
  transition: color 0.2s ease;
}

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

/* 桌面导航显示 */
.nav-desktop {
  display: none;
}

.mobile-nav-toggle {
  display: inline-flex;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }

  .mobile-nav-toggle {
    display: none !important;
  }
}

/* ===== 响应式微调 ===== */
@media (max-width: 768px) {
  .article-hero {
    padding: 36px 0 28px;
  }

  .article-title {
    font-size: 1.45rem;
    line-height: 1.4;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.9;
  }

  .article-main {
    padding: 28px 0 44px;
  }

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

  .breadcrumb-list {
    font-size: 12px;
  }

  .container-xl {
    padding: 0 18px;
  }
}

@media (max-width: 480px) {
  .hero-article-title {
    font-size: 1.3rem;
  }
}

/* roulang page: category2 */
:root {
            --primary: #2F6BFF;
            --primary-600: #1D5CE6;
            --primary-light: #EDF3FF;
            --primary-ink: #143A8D;
            --accent: #1DBFB2;
            --accent-soft: #DFF7F3;
            --ctx-bg: #F6F8FD;
            --white: #FFFFFF;
            --card-border: #E3E9F2;
            --ink-1: #14213D;
            --ink-2: #33435B;
            --ink-3: #6A7A8E;
            --shadow-1: 0 8px 24px rgba(20, 33, 61, 0.06);
            --shadow-2: 0 16px 48px rgba(20, 33, 61, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--ctx-bg);
            color: var(--ink-2);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

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

        /* Header */
        .site-header {
            background: #FFFFFF;
            border-bottom: 1px solid edge #E7EDF6;
            position: sticky;
            top: 0;
            z-index: 90;
            box-shadow: 0 1px 0 rgba(20, 33, 61, 0.03);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 8px 32px rgba(20, 33, 61, 0.07);
        }
        .nav-item {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: #33435B;
            padding: 6px 2px;
            letter-spacing: 0.3px;
            transition: color 0.2s ease;
        }
        .nav-item::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: #2F6BFF;
            border-radius: 2px;
            transition: width 0.25s ease;
        }
        .nav-item:hover {
            color: #14213D;
        }
        .nav-item:hover::after {
            width: 100%;
        }
        .nav-item.active {
            color: #14213D;
            font-weight: 600;
        }
        .nav-item.active::after {
            width: 100%;
        }
        .footer-link {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-link:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-weight: 600;
            line-height: 1;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-primary {
            background: linear-gradient(135deg, #2F6BFF, #1D5CE6);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(47, 107, 255, 0.25);
            height: 46px;
            padding: 0 24px;
        }
        .btn-primary:hover {
            background: #1D5CE6;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(47, 107, 255, 0.32);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(47, 107, 255, 0.2);
        }
        .btn-secondary {
            background: #FFFFFF;
            border: 1px solid #C7D6EE;
            color: #33435B;
            height: 46px;
            padding: 0 24px;
        }
        .btn-secondary:hover {
            background: #EDF3FF;
            border-color: #9CBBF5;
        }
        .btn-secondary:active {
            background: #E0EAF9;
        }

        /* Mobile Nav */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: min(320px, 86vw);
            height: 100%;
            background: white;
            z-index: 200;
            box-shadow: -16px 0 64px rgba(20, 33, 61, 0.16);
            transform: translateX(100%);
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-mask {
            position: fixed;
            inset: 0;
            background: rgba(20, 33, 61, 0.45);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .drawer-mask.open {
            opacity: 1;
            pointer-events: auto;
        }

        /* Section headings */
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-eyebrow::before {
            content: "";
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Cards */
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(20, 33, 61, 0.10);
        }

        /* Tags */
        .tag-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 100px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
        }

        /* Category Hero */
        .cat-hero {
            background: #F6F8FD;
            border-bottom: 1px solid #E7EDF6;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            top: -140px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(47, 107, 255, 0.10) 0%, rgba(47, 107, 255, 0) 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cat-hero .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }
        @media (max-width: 1024px) {
            .cat-hero .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .feature-card {
            background: #FFFFFF;
            border: 1px solid #E3E9F2;
            border-radius: 16px;
            padding: 28px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-1);
            transform: translateY(-2px);
        }

        /* Steps */
        .step-dot {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #2F6BFF;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .connector-line {
            position: absolute;
            top: 18px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: repeating-linear-gradient(90deg, #D9E2EF 0px, #D9E2EF 6px, transparent 6px, transparent 12px);
            z-index: 0;
        }
        @media (max-width: 768px) {
            .connector-line {
                display: none;
            }
        }

        /* Service Category block */
        .service-tile {
            background: #FFFFFF;
            border: 1px solid #E3E9F2;
            border-radius: 14px;
            padding: 24px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .service-tile:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(20, 33, 61, 0.06);
            border-color: #BFD4F7;
        }
        .service-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 22px;
        }

        /* Timeline */
        .timeline-item {
            position: relative;
            padding-left: 36px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: 10px;
            top: 10px;
            bottom: -20px;
            width: 2px;
            background: #E2EAF6;
        }
        .timeline-item:last-child::before {
            display: none;
        }
        .timeline-dot {
            position: absolute;
            left: 0;
            top: 4px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 3px solid #2F6BFF;
            z-index: 1;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid #E3E9F2;
            border-radius: 14px;
            background: #FFFFFF;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }
        .faq-item.active {
            border-color: #BFD4F7;
        }
        .faq-question {
            cursor: pointer;
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: #14213D;
            user-select: none;
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #EDF3FF;
            color: #2F6BFF;
            transition: background 0.3s ease, transform 0.3s ease, color 0.3s ease;
            font-size: 18px;
            line-height: 1;
        }
        .faq-item.active .faq-icon {
            background: #2F6BFF;
            color: white;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: #6A7A8E;
            font-size: 15px;
            line-height: 1.8;
        }

        /* Cover cards */
        .cover-card {
            background: #FFFFFF;
            border: 1px solid #E3E9F2;
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .cover-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-2);
        }
        .cover-card .cover-img {
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .cover-card .cover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .cover-card:hover .cover-img img {
            transform: scale(1.04);
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* CTA band */
        .cta-band {
            background: linear-gradient(135deg, #101F3E 0%, #16294F 55%, #1B3163 100%);
            border-radius: 20px;
            position: relative;
            overflow: hidden;
        }
        .cta-band::after {
            content: "";
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(47, 107, 255, 0.35) 0%, transparent 70%);
            border-radius: 50%;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #2F6BFF;
            --primary-600: #1D5CE6;
            --primary-light: #EDF3FF;
            --primary-ink: #143A8D;
            --accent: #1DBFB2;
            --accent-soft: #DFF7F3;
            --ctx-bg: #F6F8FD;
            --white: #FFFFFF;
            --card-border: #E3E9F2;
            --ink-1: #14213D;
            --ink-2: #33435B;
            --ink-3: #6A7A8E;
            --shadow-1: 0 8px 24px rgba(20, 33, 61, 0.06);
            --shadow-2: 0 16px 48px rgba(20, 33, 61, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

        /* ============ Reset / Base ============ */
        * {
            box-sizing: border-box;
            margin: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--ctx-bg);
            color: var(--ink-2);
            line-height: 1.75;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }

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

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 6px;
        }

        /* ============ 共用容器 ============ */
        .container-xl {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-space {
            padding: 72px 0 88px;
        }

        @media (max-width: 768px) {
            .section-space {
                padding: 52px 0 60px;
            }
        }

        /* ============ Header / Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid #EAF0F8;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 10px 30px rgba(20, 33, 61, 0.08);
            border-bottom-color: transparent;
        }

        .nav-item {
            position: relative;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink-2);
            line-height: 68px;
        }

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

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

        .nav-item.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            border-radius: 3px 3px 0 0;
            background: var(--primary);
        }

        .desktop-nav-wrap .nav-item.active::after {
            left: 4px;
            right: 4px;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: all 0.2s ease;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(47, 107, 255, 0.24);
        }

        .btn-primary:hover {
            background: var(--primary-600);
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(47, 107, 255, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
            background: #1644B8;
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.25);
        }

        .btn-outline {
            border-color: #C8D6EC;
            background: #fff;
            color: var(--ink-1);
        }

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

        .btn-lg {
            height: 52px;
            padding: 0 30px;
            font-size: 16px;
            border-radius: 12px;
        }

        /* ============ 页头 Hero（分类页轻量页头） ============ */
        .page-hero {
            background: #EDF3FE url("/assets/images/backpic/back-1.png") no-repeat center;
            background-size: cover;
            border-bottom: 1px solid #E4ECFA;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(255, 255, 255, 0.96) 15%, rgba(235, 243, 255, 0.72) 65%, rgba(226, 239, 255, 0.4) 100%);
        }

        .page-hero .page-hero-inner {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--ink-3);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: var(--ink-3);
            font-weight: 500;
        }

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

        .breadcrumb span {
            color: var(--primary);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 42px;
            line-height: 1.24;
            font-weight: 800;
            color: var(--ink-1);
            letter-spacing: -0.5px;
            margin: 0 0 18px;
        }

        .page-hero p.lead-text {
            font-size: 17px;
            line-height: 1.9;
            max-width: 640px;
            color: var(--ink-2);
            margin: 0;
        }

        /* ============ 状态统计条 ============ */
        .info-strip {
            background: #fff;
            border-bottom: 1px solid #E7EDF6;
            box-shadow: 0 1px 0 rgba(20, 33, 61, 0.02);
        }

        .info-strip .info-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            padding: 28px 0;
        }

        @media (max-width: 768px) {
            .info-strip .info-wrap {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 20px 0;
            }

            .info-strip .info-block {
                border-right: none !important;
                padding: 8px 0 8px 16px !important;
                border-left: 3px solid var(--primary);
            }
        }

        .info-strip .info-block {
            border-right: 1px solid #E7EDF6;
            padding: 8px 20px;
        }

        .info-strip .info-block:last-child {
            border-right: none;
        }

        .info-strip .info-block strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
        }

        .info-strip .info-block span {
            font-size: 14px;
            color: var(--ink-3);
        }

        /* ============ 服务覆盖区 ============ */
        .section-title-wrap {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 32px;
        }

        .section-title-wrap h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink-1);
            letter-spacing: -0.4px;
            line-height: 1.3;
            margin: 0;
        }

        .section-title-wrap .section-desc {
            max-width: 420px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--ink-3);
            margin: 0;
        }

        .service-grid-cover {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .service-main-card {
            grid-column: span 7;
            grid-row: span 2;
            background: var(--white);
            border: 1px solid var(--card-border);
            border-radius: 20px;
            padding: 32px;
            box-shadow: var(--shadow-1);
            position: relative;
            overflow: hidden;
        }

        .service-main-card .bg-brand-mark {
            position: absolute;
            right: -24px;
            top: -24px;
            width: 150px;
            height: 150px;
            border-radius: 32px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 58px;
            font-weight: 800;
            color: #AAC7FF;
            transform: rotate(12deg);
            opacity: 0.5;
        }

        .service-sub-card {
            grid-column: span 5;
            background: var(--white);
            border: 1px solid var(--card-border);
            border-radius: 18px;
            padding: 24px 24px 20px;
            box-shadow: var(--shadow-1);
        }

        .service-sub-card .icon-badge {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .service-sub-card.accent-badge .icon-badge {
            background: var(--accent-soft);
            color: #0C9F90;
        }

        .service-main-card h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--ink-1);
            margin: 0 0 12px;
        }

        .service-main-card p,
        .service-sub-card p {
            font-size: 15px;
            color: var(--ink-2);
            line-height: 1.85;
            margin: 0 0 14px;
        }

        .service-main-card ul.tick-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 18px;
        }

        .service-main-card ul.tick-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--ink-2);
        }

        .tick-list li svg {
            flex: none;
            color: var(--accent);
        }

        .sub-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink-1);
        }

        @media (max-width: 1023px) {
            .service-main-card {
                grid-column: span 12;
                grid-row: auto;
            }

            .service-sub-card {
                grid-column: span 12;
            }
        }

        @media (max-width: 640px) {
            .section-title-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

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

            .service-main-card h3 {
                font-size: 19px;
            }
        }

        /* ============ 卡片（重点赛事） ============ */
        .event-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        @media (max-width: 900px) {
            .event-card-grid {
                grid-template-columns: 1fr;
            }
        }

        .event-card {
            display: flex;
            background: #fff;
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-1);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .event-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-2);
        }

        .event-card-media {
            width: 44%;
            position: relative;
            min-height: 210px;
        }

        .event-card-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .event-card-body {
            flex: 1;
            padding: 24px 24px 18px;
            display: flex;
            flex-direction: column;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            height: 28px;
            padding: 0 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            border: 1px solid #D7E4FF;
            margin-bottom: 14px;
        }

        .event-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink-1);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .event-card-body p {
            font-size: 14.5px;
            color: var(--ink-3);
            line-height: 1.8;
            flex: 1;
            margin: 0 0 16px;
        }

        .event-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            border-top: 1px dashed #EAF0F8;
            padding-top: 12px;
        }

        .event-card-footer .meta {
            font-size: 12px;
            color: var(--ink-3);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .text-link:hover {
            color: var(--primary-600);
        }

        @media (max-width: 520px) {
            .event-card {
                flex-direction: column;
            }

            .event-card-media {
                width: 100%;
                min-height: 0;
                aspect-ratio: 16 / 10;
            }

            .event-card-media img {
                position: static;
                height: auto;
            }

            .event-card-body {
                padding: 18px;
            }
        }

        /* ============ 步骤区 ============ */
        .process-section {
            background: #fff;
            border-top: 1px solid #EAF0F8;
            border-bottom: 1px solid #EAF0F8;
        }

        .process-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
            margin-top: 36px;
            position: relative;
        }

        .process-grid::before {
            content: "";
            position: absolute;
            top: 30px;
            left: 12%;
            right: 12%;
            height: 1px;
            background: #C7D6EE;
            z-index: 0;
        }

        @media (max-width: 800px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .process-grid::before {
                display: none;
            }

            .process-step {
                flex-direction: row;
                text-align: left;
                gap: 16px;
            }

            .process-step .step-icon {
                margin-bottom: 0;
            }
        }

        .process-step {
            background: #fff;
            padding: 12px 0;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            text-align: left;
        }

        .process-step .step-icon {
            width: 60px;
            height: 60px;
            background: var(--primary);
            color: #fff;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 22px;
            box-shadow: 0 10px 24px rgba(47, 107, 255, 0.24);
            margin-bottom: 20px;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-1);
            margin: 0 0 10px;
        }

        .process-step p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--ink-3);
            padding-right: 10px;
        }

        .process-step .step-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 6px 12px;
            border-radius: 999px;
            margin-top: 14px;
        }

        /* ============ FAQ ============ */
        .faq-layout {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 60px;
        }

        @media (max-width: 900px) {
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        .faq-intro h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink-1);
            margin: 0 0 18px;
        }

        .faq-intro p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--ink-3);
            margin: 0 0 18px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--card-border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .faq-item:hover {
            border-color: #BFD0EB;
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(47, 107, 255, 0.08);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            text-align: left;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-1);
            line-height: 1.6;
            transition: background 0.2s;
        }

        .faq-question:hover {
            background: #F8FBFF;
        }

        .faq-icon {
            flex: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid #C7D6EE;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            padding: 0 20px;
            overflow: hidden;
            transition: max-height 0.36s ease, padding 0.3s ease;
            line-height: 1.85;
            color: var(--ink-2);
            font-size: 15px;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 20px 20px;
        }

        /* ============ CTA 区 ============ */
        .cta-band {
            background: linear-gradient(135deg, #F2F7FF, #E7EFFD);
            border-radius: 24px;
            border: 1px solid #DCE7F8;
            padding: 44px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .cta-band h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--ink-1);
            margin: 0 0 6px;
        }

        .cta-band p {
            font-size: 15px;
            color: var(--ink-3);
            margin: 0;
            line-height: 1.7;
        }

        .cta-band .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        @media (max-width: 640px) {
            .cta-band {
                padding: 28px 22px;
                border-radius: 18px;
            }

            .cta-band h2 {
                font-size: 21px;
            }

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

        /* ============ 页脚 ============ */
        .footer-link {
            font-size: 14px;
            color: #A6B4C8;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #fff;
        }

        /* ============ 移动端抽屉 ============ */
        .mobile-nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(13, 25, 44, 0.5);
            z-index: 120;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .mobile-nav-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .mobile-nav-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: min(86vw, 330px);
            background: #fff;
            z-index: 130;
            transform: translateX(105%);
            transition: transform 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 24px 20px;
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            transform: translateX(0);
        }

        .mobile-nav-drawer .drawer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 26px;
            padding-bottom: 16px;
            border-bottom: 1px solid #EDF1F7;
        }

        .mobile-nav-drawer .drawer-nav-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 13px 16px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-1);
        }

        .mobile-nav-drawer .drawer-nav-item:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-nav-drawer .drawer-nav-item.active {
            background: var(--primary);
            color: #fff;
        }

        .mobile-drawer-footnote {
            margin-top: auto;
            padding-top: 28px;
            font-size: 13px;
            color: var(--ink-3);
            border-top: 1px solid #EDF1F7;
            line-height: 1.8;
        }

        @media (min-width: 1024px) {
            .mobile-nav-toggle {
                display: none !important;
            }

            .mobile-nav-drawer,
            .mobile-nav-overlay {
                display: none;
            }
        }

        /* 在移动端隐藏桌面导航 */
        @media (max-width: 1023px) {
            .desktop-nav-wrap {
                display: none !important;
            }
        }